1 /* 2 * (MPSAFE) 3 * 4 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 5 * 6 * This code is derived from software contributed to The DragonFly Project 7 * by Matthew Dillon <dillon@backplane.com> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 3. Neither the name of The DragonFly Project nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific, prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 31 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * 37 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> 38 * 39 * Permission to use, copy, modify, and distribute this software for any 40 * purpose with or without fee is hereby granted, provided that the above 41 * copyright notice and this permission notice appear in all copies. 42 * 43 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 44 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 45 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 46 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 47 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 48 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 49 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 50 * 51 * $OpenBSD: atascsi.c,v 1.64 2009/02/16 21:19:06 miod Exp $ 52 * $DragonFly$ 53 */ 54 /* 55 * Implement each SATA port as its own SCSI bus on CAM. This way we can 56 * implement future port multiplier features as individual devices on the 57 * bus. 58 * 59 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest 60 * was written natively for DragonFly. 61 */ 62 63 #include "sili.h" 64 65 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb); 66 static void sili_xpt_poll(struct cam_sim *sim); 67 static void sili_xpt_scsi_disk_io(struct sili_port *ap, 68 struct ata_port *at, union ccb *ccb); 69 static void sili_xpt_scsi_atapi_io(struct sili_port *ap, 70 struct ata_port *at, union ccb *ccb); 71 static void sili_xpt_page_inquiry(struct sili_port *ap, 72 struct ata_port *at, union ccb *ccb); 73 74 static void sili_ata_complete_disk_rw(struct ata_xfer *xa); 75 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa); 76 static void sili_atapi_complete_cmd(struct ata_xfer *xa); 77 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data); 78 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 79 struct scsi_sense_data *sense_data); 80 81 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at); 82 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at); 83 static void sili_ata_dummy_done(struct ata_xfer *xa); 84 static void ata_fix_identify(struct ata_identify *id); 85 static int sili_set_xfer(struct sili_port *ap, struct ata_port *atx); 86 static void sili_cam_rescan(struct sili_port *ap); 87 static void sili_strip_string(const char **basep, int *lenp); 88 89 int 90 sili_cam_attach(struct sili_port *ap) 91 { 92 struct cam_devq *devq; 93 struct cam_sim *sim; 94 int error; 95 int unit; 96 97 /* 98 * We want at least one ccb to be available for error processing 99 * so don't let CAM use more then ncmds - 1. 100 */ 101 unit = device_get_unit(ap->ap_sc->sc_dev); 102 if (ap->ap_sc->sc_ncmds > 1) 103 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1); 104 else 105 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds); 106 if (devq == NULL) { 107 return (ENOMEM); 108 } 109 110 /* 111 * Give the devq enough room to run with 32 max_dev_transactions, 112 * but set the overall max tags to 1 until NCQ is negotiated. 113 */ 114 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili", 115 (void *)ap, unit, &ap->ap_sim_lock, 116 32, 1, devq); 117 cam_simq_release(devq); 118 if (sim == NULL) { 119 return (ENOMEM); 120 } 121 ap->ap_sim = sim; 122 sili_os_unlock_port(ap); 123 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 124 error = xpt_bus_register(ap->ap_sim, ap->ap_num); 125 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 126 sili_os_lock_port(ap); 127 if (error != CAM_SUCCESS) { 128 sili_cam_detach(ap); 129 return (EINVAL); 130 } 131 ap->ap_flags |= AP_F_BUS_REGISTERED; 132 133 if (ap->ap_probe == ATA_PROBE_NEED_IDENT) 134 error = sili_cam_probe(ap, NULL); 135 else 136 error = 0; 137 if (error) { 138 sili_cam_detach(ap); 139 return (EIO); 140 } 141 ap->ap_flags |= AP_F_CAM_ATTACHED; 142 143 return(0); 144 } 145 146 /* 147 * The state of the port has changed. 148 * 149 * If at is NULL the physical port has changed state. 150 * If at is non-NULL a particular target behind a PM has changed state. 151 * 152 * If found is -1 the target state must be queued to a non-interrupt context. 153 * (only works with at == NULL). 154 * 155 * If found is 0 the target was removed. 156 * If found is 1 the target was inserted. 157 */ 158 void 159 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found) 160 { 161 struct cam_path *tmppath; 162 int status; 163 int target; 164 165 target = atx ? atx->at_target : CAM_TARGET_WILDCARD; 166 167 if (ap->ap_sim == NULL) 168 return; 169 if (found == CAM_TARGET_WILDCARD) { 170 status = xpt_create_path(&tmppath, NULL, 171 cam_sim_path(ap->ap_sim), 172 target, CAM_LUN_WILDCARD); 173 if (status != CAM_REQ_CMP) 174 return; 175 sili_cam_rescan(ap); 176 } else { 177 status = xpt_create_path(&tmppath, NULL, 178 cam_sim_path(ap->ap_sim), 179 target, 180 CAM_LUN_WILDCARD); 181 if (status != CAM_REQ_CMP) 182 return; 183 #if 0 184 /* 185 * This confuses CAM 186 */ 187 if (found) 188 xpt_async(AC_FOUND_DEVICE, tmppath, NULL); 189 else 190 xpt_async(AC_LOST_DEVICE, tmppath, NULL); 191 #endif 192 } 193 xpt_free_path(tmppath); 194 } 195 196 void 197 sili_cam_detach(struct sili_port *ap) 198 { 199 int error; 200 201 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0) 202 return; 203 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 204 if (ap->ap_sim) { 205 xpt_freeze_simq(ap->ap_sim, 1); 206 } 207 if (ap->ap_flags & AP_F_BUS_REGISTERED) { 208 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim)); 209 KKASSERT(error == CAM_REQ_CMP); 210 ap->ap_flags &= ~AP_F_BUS_REGISTERED; 211 } 212 if (ap->ap_sim) { 213 cam_sim_free(ap->ap_sim); 214 ap->ap_sim = NULL; 215 } 216 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 217 ap->ap_flags &= ~AP_F_CAM_ATTACHED; 218 } 219 220 /* 221 * Once the SILI port has been attached we need to probe for a device or 222 * devices on the port and setup various options. 223 * 224 * If at is NULL we are probing the direct-attached device on the port, 225 * which may or may not be a port multiplier. 226 */ 227 int 228 sili_cam_probe(struct sili_port *ap, struct ata_port *atx) 229 { 230 struct ata_port *at; 231 struct ata_xfer *xa; 232 u_int64_t capacity; 233 u_int64_t capacity_bytes; 234 int model_len; 235 int firmware_len; 236 int serial_len; 237 int error; 238 int devncqdepth; 239 int i; 240 const char *model_id; 241 const char *firmware_id; 242 const char *serial_id; 243 const char *wcstr; 244 const char *rastr; 245 const char *scstr; 246 const char *type; 247 248 error = EIO; 249 250 /* 251 * Delayed CAM attachment for initial probe, sim may be NULL 252 */ 253 if (ap->ap_sim == NULL) 254 return(0); 255 256 /* 257 * A NULL atx indicates a probe of the directly connected device. 258 * A non-NULL atx indicates a device connected via a port multiplier. 259 * We need to preserve atx for calls to sili_ata_get_xfer(). 260 * 261 * at is always non-NULL. For directly connected devices we supply 262 * an (at) pointing to target 0. 263 */ 264 if (atx == NULL) { 265 at = ap->ap_ata; /* direct attached - device 0 */ 266 if (ap->ap_type == ATA_PORT_T_PM) { 267 kprintf("%s: Found Port Multiplier\n", 268 ATANAME(ap, atx)); 269 return (0); 270 } 271 at->at_type = ap->ap_type; 272 } else { 273 at = atx; 274 if (atx->at_type == ATA_PORT_T_PM) { 275 kprintf("%s: Bogus device, reducing port count to %d\n", 276 ATANAME(ap, atx), atx->at_target); 277 if (ap->ap_pmcount > atx->at_target) 278 ap->ap_pmcount = atx->at_target; 279 goto err; 280 } 281 } 282 if (ap->ap_type == ATA_PORT_T_NONE) 283 goto err; 284 if (at->at_type == ATA_PORT_T_NONE) 285 goto err; 286 287 /* 288 * Issue identify, saving the result 289 */ 290 xa = sili_ata_get_xfer(ap, atx); 291 xa->complete = sili_ata_dummy_done; 292 xa->data = &at->at_identify; 293 xa->datalen = sizeof(at->at_identify); 294 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 295 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 296 297 switch(at->at_type) { 298 case ATA_PORT_T_DISK: 299 xa->fis->command = ATA_C_IDENTIFY; 300 type = "DISK"; 301 break; 302 case ATA_PORT_T_ATAPI: 303 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 304 xa->flags |= ATA_F_AUTOSENSE; 305 type = "ATAPI"; 306 break; 307 default: 308 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 309 type = "UNKNOWN(ATAPI?)"; 310 break; 311 } 312 xa->fis->features = 0; 313 xa->fis->device = 0; 314 xa->timeout = 1000; 315 316 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 317 kprintf("%s: Detected %s device but unable to IDENTIFY\n", 318 ATANAME(ap, atx), type); 319 sili_ata_put_xfer(xa); 320 goto err; 321 } 322 sili_ata_put_xfer(xa); 323 324 ata_fix_identify(&at->at_identify); 325 326 /* 327 * Read capacity using SATA probe info. 328 */ 329 if (le16toh(at->at_identify.cmdset83) & 0x0400) { 330 /* LBA48 feature set supported */ 331 capacity = 0; 332 for (i = 3; i >= 0; --i) { 333 capacity <<= 16; 334 capacity += 335 le16toh(at->at_identify.addrsecxt[i]); 336 } 337 } else { 338 capacity = le16toh(at->at_identify.addrsec[1]); 339 capacity <<= 16; 340 capacity += le16toh(at->at_identify.addrsec[0]); 341 } 342 at->at_capacity = capacity; 343 if (atx == NULL) 344 ap->ap_probe = ATA_PROBE_GOOD; 345 346 capacity_bytes = capacity * 512; 347 348 /* 349 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated 350 * number of slots and limit the number of CAM ccb's to one less 351 * so we always have a slot available for recovery. 352 * 353 * NCQ is not used if ap_ncqdepth is 1 or the host controller does 354 * not support it, and in that case the driver can handle extra 355 * ccb's. 356 * 357 * NCQ is currently used only with direct-attached disks. It is 358 * not used with port multipliers or direct-attached ATAPI devices. 359 * 360 * Remember at least one extra CCB needs to be reserved for the 361 * error ccb. 362 */ 363 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) && 364 at->at_type == ATA_PORT_T_DISK && 365 (le16toh(at->at_identify.satacap) & (1 << 8))) { 366 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; 367 devncqdepth = at->at_ncqdepth; 368 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) 369 at->at_ncqdepth = ap->ap_sc->sc_ncmds; 370 if (at->at_ncqdepth > 1) { 371 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { 372 xa = sili_ata_get_xfer(ap, atx); 373 if (xa->tag < at->at_ncqdepth) { 374 xa->state = ATA_S_COMPLETE; 375 sili_ata_put_xfer(xa); 376 } 377 } 378 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { 379 cam_sim_set_max_tags(ap->ap_sim, 380 at->at_ncqdepth - 1); 381 } 382 } 383 } else { 384 devncqdepth = 0; 385 } 386 387 /* 388 * Make the model string a bit more presentable 389 */ 390 for (model_len = 40; model_len; --model_len) { 391 if (at->at_identify.model[model_len-1] == ' ') 392 continue; 393 if (at->at_identify.model[model_len-1] == 0) 394 continue; 395 break; 396 } 397 398 model_len = sizeof(at->at_identify.model); 399 model_id = at->at_identify.model; 400 sili_strip_string(&model_id, &model_len); 401 402 firmware_len = sizeof(at->at_identify.firmware); 403 firmware_id = at->at_identify.firmware; 404 sili_strip_string(&firmware_id, &firmware_len); 405 406 serial_len = sizeof(at->at_identify.serial); 407 serial_id = at->at_identify.serial; 408 sili_strip_string(&serial_id, &serial_len); 409 410 /* 411 * Generate informatiive strings. 412 * 413 * NOTE: We do not automatically set write caching, lookahead, 414 * or the security state for ATAPI devices. 415 */ 416 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { 417 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) 418 wcstr = "enabled"; 419 else if (at->at_type == ATA_PORT_T_ATAPI) 420 wcstr = "disabled"; 421 else 422 wcstr = "enabling"; 423 } else { 424 wcstr = "notsupp"; 425 } 426 427 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { 428 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) 429 rastr = "enabled"; 430 else if (at->at_type == ATA_PORT_T_ATAPI) 431 rastr = "disabled"; 432 else 433 rastr = "enabling"; 434 } else { 435 rastr = "notsupp"; 436 } 437 438 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { 439 if (at->at_identify.securestatus & ATA_SECURE_FROZEN) 440 scstr = "frozen"; 441 else if (at->at_type == ATA_PORT_T_ATAPI) 442 scstr = "unfrozen"; 443 else if (SiliNoFeatures & (1 << ap->ap_num)) 444 scstr = "<disabled>"; 445 else 446 scstr = "freezing"; 447 } else { 448 scstr = "notsupp"; 449 } 450 451 kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n" 452 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " 453 "capacity=%lld.%02dMB\n", 454 455 ATANAME(ap, atx), 456 type, 457 model_len, model_len, model_id, 458 firmware_len, firmware_len, firmware_id, 459 serial_len, serial_len, serial_id, 460 461 ATANAME(ap, atx), 462 devncqdepth, ap->ap_sc->sc_ncmds, 463 at->at_identify.satacap, 464 at->at_identify.satafsup, 465 (at->at_ncqdepth > 1 ? "YES" : "NO"), 466 (long long)capacity_bytes / (1024 * 1024), 467 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) 468 ); 469 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", 470 ATANAME(ap, atx), 471 at->at_identify.features85, 472 at->at_identify.features86, 473 at->at_identify.features87, 474 wcstr, 475 rastr, 476 scstr 477 ); 478 479 /* 480 * Additional type-specific probing 481 */ 482 switch(at->at_type) { 483 case ATA_PORT_T_DISK: 484 error = sili_cam_probe_disk(ap, atx); 485 break; 486 case ATA_PORT_T_ATAPI: 487 error = sili_cam_probe_atapi(ap, atx); 488 break; 489 default: 490 error = EIO; 491 break; 492 } 493 err: 494 if (error) { 495 at->at_probe = ATA_PROBE_FAILED; 496 if (atx == NULL) 497 ap->ap_probe = at->at_probe; 498 } else { 499 at->at_probe = ATA_PROBE_GOOD; 500 if (atx == NULL) 501 ap->ap_probe = at->at_probe; 502 } 503 return (error); 504 } 505 506 /* 507 * DISK-specific probe after initial ident 508 */ 509 static int 510 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx) 511 { 512 struct ata_port *at; 513 struct ata_xfer *xa; 514 515 at = atx ? atx : ap->ap_ata; 516 517 /* 518 * Set dummy xfer mode 519 */ 520 sili_set_xfer(ap, atx); 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 sili_set_xfer(ap, atx); 609 return(0); 610 } 611 612 /* 613 * Setting the transfer mode is irrelevant for the SATA transport 614 * but some (atapi) devices seem to need it anyway. In addition 615 * if we are running through a SATA->PATA converter for some reason 616 * beyond my comprehension we might have to set the mode. 617 * 618 * We only support DMA modes for SATA attached devices, so don't bother 619 * with legacy modes. 620 */ 621 static int 622 sili_set_xfer(struct sili_port *ap, struct ata_port *atx) 623 { 624 struct ata_port *at; 625 struct ata_xfer *xa; 626 u_int16_t mode; 627 u_int16_t mask; 628 629 at = atx ? atx : ap->ap_ata; 630 631 /* 632 * Figure out the supported UDMA mode. Ignore other legacy modes. 633 */ 634 mask = le16toh(at->at_identify.ultradma); 635 if ((mask & 0xFF) == 0 || mask == 0xFFFF) 636 return(0); 637 mask &= 0xFF; 638 mode = 0x4F; 639 while ((mask & 0x8000) == 0) { 640 mask <<= 1; 641 --mode; 642 } 643 644 /* 645 * SATA atapi devices often still report a dma mode, even though 646 * it is irrelevant for SATA transport. It is also possible that 647 * we are running through a SATA->PATA converter and seeing the 648 * PATA dma mode. 649 * 650 * In this case the device may require a (dummy) SETXFER to be 651 * sent before it will work properly. 652 */ 653 xa = sili_ata_get_xfer(ap, atx); 654 xa->complete = sili_ata_dummy_done; 655 xa->fis->command = ATA_C_SET_FEATURES; 656 xa->fis->features = ATA_SF_SETXFER; 657 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 658 xa->fis->sector_count = mode; 659 xa->flags = ATA_F_PIO | ATA_F_POLL; 660 xa->timeout = 1000; 661 xa->datalen = 0; 662 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 663 kprintf("%s: Unable to set dummy xfer mode \n", 664 ATANAME(ap, atx)); 665 } else if (bootverbose) { 666 kprintf("%s: Set dummy xfer mode to %02x\n", 667 ATANAME(ap, atx), mode); 668 } 669 sili_ata_put_xfer(xa); 670 return(0); 671 } 672 673 /* 674 * Fix byte ordering so buffers can be accessed as 675 * strings. 676 */ 677 static void 678 ata_fix_identify(struct ata_identify *id) 679 { 680 u_int16_t *swap; 681 int i; 682 683 swap = (u_int16_t *)id->serial; 684 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++) 685 swap[i] = bswap16(swap[i]); 686 687 swap = (u_int16_t *)id->firmware; 688 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++) 689 swap[i] = bswap16(swap[i]); 690 691 swap = (u_int16_t *)id->model; 692 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++) 693 swap[i] = bswap16(swap[i]); 694 } 695 696 /* 697 * Dummy done callback for xa. 698 */ 699 static void 700 sili_ata_dummy_done(struct ata_xfer *xa) 701 { 702 } 703 704 /* 705 * Use an engineering request to initiate a target scan for devices 706 * behind a port multiplier. 707 * 708 * An asynchronous bus scan is used to avoid reentrancy issues. 709 */ 710 static void 711 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 712 { 713 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 714 715 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) { 716 ap->ap_flags &= ~AP_F_SCAN_RUNNING; 717 if (ap->ap_flags & AP_F_SCAN_REQUESTED) { 718 ap->ap_flags &= ~AP_F_SCAN_REQUESTED; 719 sili_cam_rescan(ap); 720 } 721 ap->ap_flags |= AP_F_SCAN_COMPLETED; 722 wakeup(&ap->ap_flags); 723 } 724 xpt_free_ccb(ccb); 725 } 726 727 static void 728 sili_cam_rescan(struct sili_port *ap) 729 { 730 struct cam_path *path; 731 union ccb *ccb; 732 int status; 733 int i; 734 735 if (ap->ap_flags & AP_F_SCAN_RUNNING) { 736 ap->ap_flags |= AP_F_SCAN_REQUESTED; 737 return; 738 } 739 ap->ap_flags |= AP_F_SCAN_RUNNING; 740 for (i = 0; i < SILI_MAX_PMPORTS; ++i) { 741 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN; 742 } 743 744 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 745 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 746 if (status != CAM_REQ_CMP) 747 return; 748 749 ccb = xpt_alloc_ccb(); 750 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 751 ccb->ccb_h.func_code = XPT_ENG_EXEC; 752 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 753 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 754 ccb->crcn.flags = CAM_FLAG_NONE; 755 xpt_action_async(ccb); 756 } 757 758 static void 759 sili_xpt_rescan(struct sili_port *ap) 760 { 761 struct cam_path *path; 762 union ccb *ccb; 763 int status; 764 765 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 766 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 767 if (status != CAM_REQ_CMP) 768 return; 769 770 ccb = xpt_alloc_ccb(); 771 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 772 ccb->ccb_h.func_code = XPT_SCAN_BUS; 773 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 774 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 775 ccb->crcn.flags = CAM_FLAG_NONE; 776 xpt_action_async(ccb); 777 } 778 779 /* 780 * Action function - dispatch command 781 */ 782 static 783 void 784 sili_xpt_action(struct cam_sim *sim, union ccb *ccb) 785 { 786 struct sili_port *ap; 787 struct ata_port *at, *atx; 788 struct ccb_hdr *ccbh; 789 int unit; 790 791 /* XXX lock */ 792 ap = cam_sim_softc(sim); 793 at = ap->ap_ata; 794 atx = NULL; 795 KKASSERT(ap != NULL); 796 ccbh = &ccb->ccb_h; 797 unit = cam_sim_unit(sim); 798 799 /* 800 * Early failure checks. These checks do not apply to XPT_PATH_INQ, 801 * otherwise the bus rescan will not remove the dead devices when 802 * unplugging a PM. 803 * 804 * For non-wildcards we have one target (0) and one lun (0), 805 * unless we have a port multiplier. 806 * 807 * A wildcard target indicates only the general bus is being 808 * probed. 809 * 810 * Calculate at and atx. at is always non-NULL. atx is only 811 * non-NULL for direct-attached devices. It will be NULL for 812 * devices behind a port multiplier. 813 * 814 * XXX What do we do with a LUN wildcard? 815 */ 816 if (ccbh->target_id != CAM_TARGET_WILDCARD && 817 ccbh->func_code != XPT_PATH_INQ) { 818 if (ap->ap_type == ATA_PORT_T_NONE) { 819 ccbh->status = CAM_DEV_NOT_THERE; 820 xpt_done(ccb); 821 return; 822 } 823 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) { 824 ccbh->status = CAM_DEV_NOT_THERE; 825 xpt_done(ccb); 826 return; 827 } 828 at += ccbh->target_id; 829 if (ap->ap_type == ATA_PORT_T_PM) 830 atx = at; 831 832 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) { 833 ccbh->status = CAM_DEV_NOT_THERE; 834 xpt_done(ccb); 835 return; 836 } 837 } 838 839 /* 840 * Switch on the meta XPT command 841 */ 842 switch(ccbh->func_code) { 843 case XPT_ENG_EXEC: 844 /* 845 * This routine is called after a port multiplier has been 846 * probed. 847 */ 848 ccbh->status = CAM_REQ_CMP; 849 sili_os_lock_port(ap); 850 sili_port_state_machine(ap, 0); 851 sili_os_unlock_port(ap); 852 xpt_done(ccb); 853 sili_xpt_rescan(ap); 854 break; 855 case XPT_PATH_INQ: 856 /* 857 * This command always succeeds, otherwise the bus scan 858 * will not detach dead devices. 859 */ 860 ccb->cpi.version_num = 1; 861 ccb->cpi.hba_inquiry = 0; 862 ccb->cpi.target_sprt = 0; 863 ccb->cpi.hba_misc = PIM_SEQSCAN; 864 ccb->cpi.hba_eng_cnt = 0; 865 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags)); 866 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1; 867 ccb->cpi.max_lun = 0; 868 ccb->cpi.async_flags = 0; 869 ccb->cpi.hpath_id = 0; 870 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1; 871 ccb->cpi.unit_number = cam_sim_unit(sim); 872 ccb->cpi.bus_id = cam_sim_bus(sim); 873 ccb->cpi.base_transfer_speed = 150000; 874 ccb->cpi.transport = XPORT_SATA; 875 ccb->cpi.transport_version = 1; 876 ccb->cpi.protocol = PROTO_SCSI; 877 ccb->cpi.protocol_version = SCSI_REV_2; 878 879 ccbh->status = CAM_REQ_CMP; 880 if (ccbh->target_id == CAM_TARGET_WILDCARD) { 881 sili_os_lock_port(ap); 882 sili_port_state_machine(ap, 0); 883 sili_os_unlock_port(ap); 884 } else { 885 switch(sili_pread(ap, SILI_PREG_SSTS) & 886 SILI_PREG_SSTS_SPD) { 887 case SILI_PREG_SSTS_SPD_GEN1: 888 ccb->cpi.base_transfer_speed = 150000; 889 break; 890 case SILI_PREG_SSTS_SPD_GEN2: 891 ccb->cpi.base_transfer_speed = 300000; 892 break; 893 default: 894 /* unknown */ 895 ccb->cpi.base_transfer_speed = 1000; 896 break; 897 } 898 #if 0 899 if (ap->ap_type == ATA_PORT_T_NONE) 900 ccbh->status = CAM_DEV_NOT_THERE; 901 #endif 902 } 903 xpt_done(ccb); 904 break; 905 case XPT_RESET_DEV: 906 sili_os_lock_port(ap); 907 if (ap->ap_type == ATA_PORT_T_NONE) { 908 ccbh->status = CAM_DEV_NOT_THERE; 909 } else { 910 sili_port_reset(ap, atx, 0); 911 ccbh->status = CAM_REQ_CMP; 912 } 913 sili_os_unlock_port(ap); 914 xpt_done(ccb); 915 break; 916 case XPT_RESET_BUS: 917 sili_os_lock_port(ap); 918 sili_port_reset(ap, NULL, 1); 919 sili_os_unlock_port(ap); 920 ccbh->status = CAM_REQ_CMP; 921 xpt_done(ccb); 922 break; 923 case XPT_SET_TRAN_SETTINGS: 924 ccbh->status = CAM_FUNC_NOTAVAIL; 925 xpt_done(ccb); 926 break; 927 case XPT_GET_TRAN_SETTINGS: 928 ccb->cts.protocol = PROTO_SCSI; 929 ccb->cts.protocol_version = SCSI_REV_2; 930 ccb->cts.transport = XPORT_SATA; 931 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED; 932 ccb->cts.proto_specific.valid = 0; 933 ccb->cts.xport_specific.valid = 0; 934 ccbh->status = CAM_REQ_CMP; 935 xpt_done(ccb); 936 break; 937 case XPT_CALC_GEOMETRY: 938 cam_calc_geometry(&ccb->ccg, 1); 939 xpt_done(ccb); 940 break; 941 case XPT_SCSI_IO: 942 /* 943 * Our parallel startup code might have only probed through 944 * to the IDENT, so do the last step if necessary. 945 */ 946 if (at->at_probe == ATA_PROBE_NEED_IDENT) 947 sili_cam_probe(ap, atx); 948 if (at->at_probe != ATA_PROBE_GOOD) { 949 ccbh->status = CAM_DEV_NOT_THERE; 950 xpt_done(ccb); 951 break; 952 } 953 switch(at->at_type) { 954 case ATA_PORT_T_DISK: 955 sili_xpt_scsi_disk_io(ap, atx, ccb); 956 break; 957 case ATA_PORT_T_ATAPI: 958 sili_xpt_scsi_atapi_io(ap, atx, ccb); 959 break; 960 default: 961 ccbh->status = CAM_REQ_INVALID; 962 xpt_done(ccb); 963 break; 964 } 965 break; 966 default: 967 ccbh->status = CAM_REQ_INVALID; 968 xpt_done(ccb); 969 break; 970 } 971 } 972 973 /* 974 * Poll function. 975 * 976 * Generally this function gets called heavily when interrupts might be 977 * non-operational, during a halt/reboot or panic. 978 */ 979 static 980 void 981 sili_xpt_poll(struct cam_sim *sim) 982 { 983 struct sili_port *ap; 984 985 ap = cam_sim_softc(sim); 986 crit_enter(); 987 sili_os_lock_port(ap); 988 sili_port_intr(ap, 1); 989 sili_os_unlock_port(ap); 990 crit_exit(); 991 } 992 993 /* 994 * Convert the SCSI command in ccb to an ata_xfer command in xa 995 * for ATA_PORT_T_DISK operations. Set the completion function 996 * to convert the response back, then dispatch to the OpenBSD SILI 997 * layer. 998 * 999 * SILI DISK commands only support a limited command set, and we 1000 * fake additional commands to make it play nice with the CAM subsystem. 1001 */ 1002 static 1003 void 1004 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx, 1005 union ccb *ccb) 1006 { 1007 struct ccb_hdr *ccbh; 1008 struct ccb_scsiio *csio; 1009 struct ata_xfer *xa; 1010 struct ata_port *at; 1011 struct ata_fis_h2d *fis; 1012 struct ata_pass_12 *atp12; 1013 struct ata_pass_16 *atp16; 1014 scsi_cdb_t cdb; 1015 union scsi_data *rdata; 1016 int rdata_len; 1017 u_int64_t capacity; 1018 u_int64_t lba; 1019 u_int32_t count; 1020 1021 ccbh = &ccb->csio.ccb_h; 1022 csio = &ccb->csio; 1023 at = atx ? atx : &ap->ap_ata[0]; 1024 1025 /* 1026 * XXX not passing NULL at for direct attach! 1027 */ 1028 xa = sili_ata_get_xfer(ap, atx); 1029 rdata = (void *)csio->data_ptr; 1030 rdata_len = csio->dxfer_len; 1031 1032 /* 1033 * Build the FIS or process the csio to completion. 1034 */ 1035 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1036 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1037 1038 switch(cdb->generic.opcode) { 1039 case REQUEST_SENSE: 1040 /* 1041 * Auto-sense everything, so explicit sense requests 1042 * return no-sense. 1043 */ 1044 ccbh->status = CAM_SCSI_STATUS_ERROR; 1045 break; 1046 case INQUIRY: 1047 /* 1048 * Inquiry supported features 1049 * 1050 * [opcode, byte2, page_code, length, control] 1051 */ 1052 if (cdb->inquiry.byte2 & SI_EVPD) { 1053 sili_xpt_page_inquiry(ap, at, ccb); 1054 } else { 1055 bzero(rdata, rdata_len); 1056 if (rdata_len < SHORT_INQUIRY_LENGTH) { 1057 ccbh->status = CAM_CCB_LEN_ERR; 1058 break; 1059 } 1060 if (rdata_len > sizeof(rdata->inquiry_data)) 1061 rdata_len = sizeof(rdata->inquiry_data); 1062 rdata->inquiry_data.device = T_DIRECT; 1063 rdata->inquiry_data.version = SCSI_REV_SPC2; 1064 rdata->inquiry_data.response_format = 2; 1065 rdata->inquiry_data.additional_length = 32; 1066 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 1067 bcopy(at->at_identify.model, 1068 rdata->inquiry_data.product, 1069 sizeof(rdata->inquiry_data.product)); 1070 bcopy(at->at_identify.firmware, 1071 rdata->inquiry_data.revision, 1072 sizeof(rdata->inquiry_data.revision)); 1073 ccbh->status = CAM_REQ_CMP; 1074 } 1075 break; 1076 case READ_CAPACITY_16: 1077 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 1078 ccbh->status = CAM_REQ_INVALID; 1079 break; 1080 } 1081 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1082 ccbh->status = CAM_CCB_LEN_ERR; 1083 break; 1084 } 1085 /* fall through */ 1086 case READ_CAPACITY: 1087 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1088 ccbh->status = CAM_CCB_LEN_ERR; 1089 break; 1090 } 1091 1092 capacity = at->at_capacity; 1093 1094 bzero(rdata, rdata_len); 1095 if (cdb->generic.opcode == READ_CAPACITY) { 1096 rdata_len = sizeof(rdata->read_capacity_data); 1097 if (capacity > 0xFFFFFFFFU) 1098 capacity = 0xFFFFFFFFU; 1099 bzero(&rdata->read_capacity_data, rdata_len); 1100 scsi_ulto4b((u_int32_t)capacity - 1, 1101 rdata->read_capacity_data.addr); 1102 scsi_ulto4b(512, rdata->read_capacity_data.length); 1103 } else { 1104 rdata_len = sizeof(rdata->read_capacity_data_16); 1105 bzero(&rdata->read_capacity_data_16, rdata_len); 1106 scsi_u64to8b(capacity - 1, 1107 rdata->read_capacity_data_16.addr); 1108 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1109 } 1110 ccbh->status = CAM_REQ_CMP; 1111 break; 1112 case SYNCHRONIZE_CACHE: 1113 /* 1114 * Synchronize cache. Specification says this can take 1115 * greater then 30 seconds so give it at least 45. 1116 */ 1117 fis = xa->fis; 1118 fis->flags = ATA_H2D_FLAGS_CMD; 1119 fis->command = ATA_C_FLUSH_CACHE; 1120 fis->device = 0; 1121 if (xa->timeout < 45000) 1122 xa->timeout = 45000; 1123 xa->datalen = 0; 1124 xa->flags = ATA_F_READ; 1125 xa->complete = sili_ata_complete_disk_synchronize_cache; 1126 break; 1127 case TEST_UNIT_READY: 1128 case START_STOP_UNIT: 1129 case PREVENT_ALLOW: 1130 /* 1131 * Just silently return success 1132 */ 1133 ccbh->status = CAM_REQ_CMP; 1134 rdata_len = 0; 1135 break; 1136 case ATA_PASS_12: 1137 atp12 = &cdb->ata_pass_12; 1138 fis = xa->fis; 1139 /* 1140 * Figure out the flags to be used, depending on the 1141 * direction of the CAM request. 1142 */ 1143 switch (ccbh->flags & CAM_DIR_MASK) { 1144 case CAM_DIR_IN: 1145 xa->flags = ATA_F_READ; 1146 break; 1147 case CAM_DIR_OUT: 1148 xa->flags = ATA_F_WRITE; 1149 break; 1150 default: 1151 xa->flags = 0; 1152 } 1153 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1154 xa->data = csio->data_ptr; 1155 xa->datalen = csio->dxfer_len; 1156 xa->complete = sili_ata_complete_disk_rw; 1157 xa->timeout = ccbh->timeout; 1158 1159 /* 1160 * Populate the fis from the information we received through CAM 1161 * ATA passthrough. 1162 */ 1163 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */ 1164 fis->features = atp12->features; 1165 fis->sector_count = atp12->sector_count; 1166 fis->lba_low = atp12->lba_low; 1167 fis->lba_mid = atp12->lba_mid; 1168 fis->lba_high = atp12->lba_high; 1169 fis->device = atp12->device; /* maybe always 0? */ 1170 fis->command = atp12->command; 1171 fis->control = atp12->control; 1172 1173 /* 1174 * Mark as in progress so it is sent to the device. 1175 */ 1176 ccbh->status = CAM_REQ_INPROG; 1177 break; 1178 case ATA_PASS_16: 1179 atp16 = &cdb->ata_pass_16; 1180 fis = xa->fis; 1181 /* 1182 * Figure out the flags to be used, depending on the direction of the 1183 * CAM request. 1184 */ 1185 switch (ccbh->flags & CAM_DIR_MASK) { 1186 case CAM_DIR_IN: 1187 xa->flags = ATA_F_READ; 1188 break; 1189 case CAM_DIR_OUT: 1190 xa->flags = ATA_F_WRITE; 1191 break; 1192 default: 1193 xa->flags = 0; 1194 } 1195 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1196 xa->data = csio->data_ptr; 1197 xa->datalen = csio->dxfer_len; 1198 xa->complete = sili_ata_complete_disk_rw; 1199 xa->timeout = ccbh->timeout; 1200 1201 /* 1202 * Populate the fis from the information we received through CAM 1203 * ATA passthrough. 1204 */ 1205 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */ 1206 fis->features = atp16->features; 1207 fis->features_exp = atp16->features_ext; 1208 fis->sector_count = atp16->sector_count; 1209 fis->sector_count_exp = atp16->sector_count_ext; 1210 fis->lba_low = atp16->lba_low; 1211 fis->lba_low_exp = atp16->lba_low_ext; 1212 fis->lba_mid = atp16->lba_mid; 1213 fis->lba_mid_exp = atp16->lba_mid_ext; 1214 fis->lba_high = atp16->lba_high; 1215 fis->lba_mid_exp = atp16->lba_mid_ext; 1216 fis->device = atp16->device; /* maybe always 0? */ 1217 fis->command = atp16->command; 1218 1219 /* 1220 * Mark as in progress so it is sent to the device. 1221 */ 1222 ccbh->status = CAM_REQ_INPROG; 1223 break; 1224 default: 1225 switch(cdb->generic.opcode) { 1226 case READ_6: 1227 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1228 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1229 xa->flags = ATA_F_READ; 1230 break; 1231 case READ_10: 1232 lba = scsi_4btoul(cdb->rw_10.addr); 1233 count = scsi_2btoul(cdb->rw_10.length); 1234 xa->flags = ATA_F_READ; 1235 break; 1236 case READ_12: 1237 lba = scsi_4btoul(cdb->rw_12.addr); 1238 count = scsi_4btoul(cdb->rw_12.length); 1239 xa->flags = ATA_F_READ; 1240 break; 1241 case READ_16: 1242 lba = scsi_8btou64(cdb->rw_16.addr); 1243 count = scsi_4btoul(cdb->rw_16.length); 1244 xa->flags = ATA_F_READ; 1245 break; 1246 case WRITE_6: 1247 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1248 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1249 xa->flags = ATA_F_WRITE; 1250 break; 1251 case WRITE_10: 1252 lba = scsi_4btoul(cdb->rw_10.addr); 1253 count = scsi_2btoul(cdb->rw_10.length); 1254 xa->flags = ATA_F_WRITE; 1255 break; 1256 case WRITE_12: 1257 lba = scsi_4btoul(cdb->rw_12.addr); 1258 count = scsi_4btoul(cdb->rw_12.length); 1259 xa->flags = ATA_F_WRITE; 1260 break; 1261 case WRITE_16: 1262 lba = scsi_8btou64(cdb->rw_16.addr); 1263 count = scsi_4btoul(cdb->rw_16.length); 1264 xa->flags = ATA_F_WRITE; 1265 break; 1266 default: 1267 ccbh->status = CAM_REQ_INVALID; 1268 break; 1269 } 1270 if (ccbh->status != CAM_REQ_INPROG) 1271 break; 1272 1273 fis = xa->fis; 1274 fis->flags = ATA_H2D_FLAGS_CMD; 1275 fis->lba_low = (u_int8_t)lba; 1276 fis->lba_mid = (u_int8_t)(lba >> 8); 1277 fis->lba_high = (u_int8_t)(lba >> 16); 1278 fis->device = ATA_H2D_DEVICE_LBA; 1279 1280 /* 1281 * NCQ only for direct-attached disks, do not currently 1282 * try to use NCQ with port multipliers. 1283 * 1284 * XXX fixme SII chip can do NCQ w/ port multipliers. 1285 */ 1286 if (at->at_ncqdepth > 1 && 1287 at->at_type == ATA_PORT_T_DISK && 1288 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1289 (ccbh->flags & CAM_POLLED) == 0) { 1290 /* 1291 * Use NCQ - always uses 48 bit addressing 1292 */ 1293 xa->flags |= ATA_F_NCQ; 1294 fis->command = (xa->flags & ATA_F_WRITE) ? 1295 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1296 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1297 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1298 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1299 fis->sector_count = xa->tag << 3; 1300 fis->features = (u_int8_t)count; 1301 fis->features_exp = (u_int8_t)(count >> 8); 1302 } else if (count > 0x100 || lba > 0x0FFFFFFFU) { 1303 /* 1304 * Use LBA48 1305 */ 1306 fis->command = (xa->flags & ATA_F_WRITE) ? 1307 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1308 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1309 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1310 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1311 fis->sector_count = (u_int8_t)count; 1312 fis->sector_count_exp = (u_int8_t)(count >> 8); 1313 } else { 1314 /* 1315 * Use LBA 1316 * 1317 * NOTE: 256 sectors is supported, stored as 0. 1318 */ 1319 fis->command = (xa->flags & ATA_F_WRITE) ? 1320 ATA_C_WRITEDMA : ATA_C_READDMA; 1321 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1322 fis->sector_count = (u_int8_t)count; 1323 } 1324 1325 xa->data = csio->data_ptr; 1326 xa->datalen = csio->dxfer_len; 1327 xa->complete = sili_ata_complete_disk_rw; 1328 xa->timeout = ccbh->timeout; /* milliseconds */ 1329 if (ccbh->flags & CAM_POLLED) 1330 xa->flags |= ATA_F_POLL; 1331 break; 1332 } 1333 1334 /* 1335 * If the request is still in progress the xa and FIS have 1336 * been set up (except for the PM target), and must be dispatched. 1337 * Otherwise the request was completed. 1338 */ 1339 if (ccbh->status == CAM_REQ_INPROG) { 1340 KKASSERT(xa->complete != NULL); 1341 xa->atascsi_private = ccb; 1342 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1343 sili_os_lock_port(ap); 1344 xa->fis->flags |= at->at_target; 1345 sili_ata_cmd(xa); 1346 sili_os_unlock_port(ap); 1347 } else { 1348 sili_ata_put_xfer(xa); 1349 xpt_done(ccb); 1350 } 1351 } 1352 1353 /* 1354 * Convert the SCSI command in ccb to an ata_xfer command in xa 1355 * for ATA_PORT_T_ATAPI operations. Set the completion function 1356 * to convert the response back, then dispatch to the OpenBSD SILI 1357 * layer. 1358 */ 1359 static 1360 void 1361 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1362 union ccb *ccb) 1363 { 1364 struct ccb_hdr *ccbh; 1365 struct ccb_scsiio *csio; 1366 struct ata_xfer *xa; 1367 struct ata_fis_h2d *fis; 1368 scsi_cdb_t cdbs; 1369 scsi_cdb_t cdbd; 1370 int flags; 1371 struct ata_port *at; 1372 1373 ccbh = &ccb->csio.ccb_h; 1374 csio = &ccb->csio; 1375 at = atx ? atx : &ap->ap_ata[0]; 1376 1377 switch (ccbh->flags & CAM_DIR_MASK) { 1378 case CAM_DIR_IN: 1379 flags = ATA_F_PACKET | ATA_F_READ; 1380 break; 1381 case CAM_DIR_OUT: 1382 flags = ATA_F_PACKET | ATA_F_WRITE; 1383 break; 1384 case CAM_DIR_NONE: 1385 flags = ATA_F_PACKET; 1386 break; 1387 default: 1388 ccbh->status = CAM_REQ_INVALID; 1389 xpt_done(ccb); 1390 return; 1391 /* NOT REACHED */ 1392 } 1393 1394 /* 1395 * Special handling to get the rfis back into host memory while 1396 * still allowing the chip to run commands in parallel to 1397 * ATAPI devices behind a PM. 1398 */ 1399 flags |= ATA_F_AUTOSENSE; 1400 1401 /* 1402 * The command has to fit in the packet command buffer. 1403 */ 1404 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1405 ccbh->status = CAM_CCB_LEN_ERR; 1406 xpt_done(ccb); 1407 return; 1408 } 1409 1410 /* 1411 * Initialize the XA and FIS. It is unclear how much of 1412 * this has to mimic the equivalent ATA command. 1413 * 1414 * XXX not passing NULL at for direct attach! 1415 */ 1416 xa = sili_ata_get_xfer(ap, atx); 1417 fis = xa->fis; 1418 1419 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1420 fis->command = ATA_C_PACKET; 1421 fis->device = ATA_H2D_DEVICE_LBA; 1422 fis->sector_count = xa->tag << 3; 1423 if (flags & (ATA_F_READ | ATA_F_WRITE)) { 1424 if (flags & ATA_F_WRITE) { 1425 fis->features = ATA_H2D_FEATURES_DMA | 1426 ATA_H2D_FEATURES_DIR_WRITE; 1427 } else { 1428 fis->features = ATA_H2D_FEATURES_DMA | 1429 ATA_H2D_FEATURES_DIR_READ; 1430 } 1431 } else { 1432 fis->lba_mid = 0; 1433 fis->lba_high = 0; 1434 } 1435 fis->control = ATA_FIS_CONTROL_4BIT; 1436 1437 xa->flags = flags; 1438 xa->data = csio->data_ptr; 1439 xa->datalen = csio->dxfer_len; 1440 xa->timeout = ccbh->timeout; /* milliseconds */ 1441 1442 if (ccbh->flags & CAM_POLLED) 1443 xa->flags |= ATA_F_POLL; 1444 1445 /* 1446 * Copy the cdb to the packetcmd buffer in the FIS using a 1447 * convenient pointer in the xa. 1448 */ 1449 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1450 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1451 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1452 1453 #if 0 1454 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1455 cdbs->generic.opcode, 1456 csio->cdb_len, csio->dxfer_len); 1457 #endif 1458 1459 /* 1460 * Some ATAPI commands do not actually follow the SCSI standard. 1461 */ 1462 cdbd = (void *)xa->packetcmd; 1463 1464 switch(cdbd->generic.opcode) { 1465 case REQUEST_SENSE: 1466 /* 1467 * Force SENSE requests to the ATAPI sense length. 1468 * 1469 * It is unclear if this is needed or not. 1470 */ 1471 if (cdbd->sense.length == SSD_FULL_SIZE) { 1472 kprintf("%s: Shortening sense request\n", 1473 PORTNAME(ap)); 1474 cdbd->sense.length = offsetof(struct scsi_sense_data, 1475 extra_bytes[0]); 1476 } 1477 break; 1478 case INQUIRY: 1479 /* 1480 * Some ATAPI devices can't handle long inquiry lengths, 1481 * don't ask me why. Truncate the inquiry length. 1482 */ 1483 if (cdbd->inquiry.page_code == 0 && 1484 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1485 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1486 } 1487 break; 1488 case READ_6: 1489 case WRITE_6: 1490 /* 1491 * Convert *_6 to *_10 commands. Most ATAPI devices 1492 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1493 */ 1494 cdbd->rw_10.opcode |= 0x20; 1495 cdbd->rw_10.byte2 = 0; 1496 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1497 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1498 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1499 cdbd->rw_10.addr[3] = 0; 1500 cdbd->rw_10.reserved = 0; 1501 cdbd->rw_10.length[0] = 0; 1502 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1503 cdbd->rw_10.control = cdbs->rw_6.control; 1504 break; 1505 default: 1506 break; 1507 } 1508 1509 /* 1510 * And dispatch 1511 */ 1512 xa->complete = sili_atapi_complete_cmd; 1513 xa->atascsi_private = ccb; 1514 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1515 sili_os_lock_port(ap); 1516 sili_ata_cmd(xa); 1517 sili_os_unlock_port(ap); 1518 } 1519 1520 /* 1521 * Simulate page inquiries for disk attachments. 1522 */ 1523 static 1524 void 1525 sili_xpt_page_inquiry(struct sili_port *ap, struct ata_port *at, union ccb *ccb) 1526 { 1527 union { 1528 struct scsi_vpd_supported_page_list list; 1529 struct scsi_vpd_unit_serial_number serno; 1530 struct scsi_vpd_unit_devid devid; 1531 char buf[256]; 1532 } *page; 1533 scsi_cdb_t cdb; 1534 int i; 1535 int j; 1536 int len; 1537 1538 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO); 1539 1540 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1541 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1542 1543 switch(cdb->inquiry.page_code) { 1544 case SVPD_SUPPORTED_PAGE_LIST: 1545 i = 0; 1546 page->list.device = T_DIRECT; 1547 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST; 1548 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST; 1549 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER; 1550 page->list.list[i++] = SVPD_UNIT_DEVID; 1551 page->list.length = i; 1552 len = offsetof(struct scsi_vpd_supported_page_list, list[3]); 1553 break; 1554 case SVPD_UNIT_SERIAL_NUMBER: 1555 i = 0; 1556 j = sizeof(at->at_identify.serial); 1557 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i) 1558 ; 1559 while (j > i && at->at_identify.serial[j-1] == ' ') 1560 --j; 1561 page->serno.device = T_DIRECT; 1562 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER; 1563 page->serno.length = j - i; 1564 bcopy(at->at_identify.serial + i, 1565 page->serno.serial_num, j - i); 1566 len = offsetof(struct scsi_vpd_unit_serial_number, 1567 serial_num[j-i]); 1568 break; 1569 case SVPD_UNIT_DEVID: 1570 /* fall through for now */ 1571 default: 1572 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1573 len = 0; 1574 break; 1575 } 1576 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1577 if (len <= ccb->csio.dxfer_len) { 1578 ccb->ccb_h.status = CAM_REQ_CMP; 1579 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len); 1580 bcopy(page, ccb->csio.data_ptr, len); 1581 ccb->csio.resid = ccb->csio.dxfer_len - len; 1582 } else { 1583 ccb->ccb_h.status = CAM_CCB_LEN_ERR; 1584 } 1585 } 1586 kfree(page, M_DEVBUF); 1587 } 1588 1589 /* 1590 * Completion function for ATA_PORT_T_DISK cache synchronization. 1591 */ 1592 static 1593 void 1594 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1595 { 1596 union ccb *ccb = xa->atascsi_private; 1597 struct ccb_hdr *ccbh = &ccb->ccb_h; 1598 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1599 1600 switch(xa->state) { 1601 case ATA_S_COMPLETE: 1602 ccbh->status = CAM_REQ_CMP; 1603 ccb->csio.scsi_status = SCSI_STATUS_OK; 1604 break; 1605 case ATA_S_ERROR: 1606 kprintf("%s: synchronize_cache: error\n", 1607 ATANAME(ap, xa->at)); 1608 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1609 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1610 sili_ata_dummy_sense(&ccb->csio.sense_data); 1611 break; 1612 case ATA_S_TIMEOUT: 1613 kprintf("%s: synchronize_cache: timeout\n", 1614 ATANAME(ap, xa->at)); 1615 ccbh->status = CAM_CMD_TIMEOUT; 1616 break; 1617 default: 1618 kprintf("%s: synchronize_cache: unknown state %d\n", 1619 ATANAME(ap, xa->at), xa->state); 1620 ccbh->status = CAM_REQ_CMP_ERR; 1621 break; 1622 } 1623 sili_ata_put_xfer(xa); 1624 sili_os_unlock_port(ap); 1625 xpt_done(ccb); 1626 sili_os_lock_port(ap); 1627 } 1628 1629 /* 1630 * Completion function for ATA_PORT_T_DISK I/O 1631 */ 1632 static 1633 void 1634 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1635 { 1636 union ccb *ccb = xa->atascsi_private; 1637 struct ccb_hdr *ccbh = &ccb->ccb_h; 1638 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1639 1640 switch(xa->state) { 1641 case ATA_S_COMPLETE: 1642 ccbh->status = CAM_REQ_CMP; 1643 ccb->csio.scsi_status = SCSI_STATUS_OK; 1644 break; 1645 case ATA_S_ERROR: 1646 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1647 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1648 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1649 sili_ata_dummy_sense(&ccb->csio.sense_data); 1650 break; 1651 case ATA_S_TIMEOUT: 1652 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1653 ccbh->status = CAM_CMD_TIMEOUT; 1654 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1655 sili_ata_dummy_sense(&ccb->csio.sense_data); 1656 break; 1657 default: 1658 kprintf("%s: disk_rw: unknown state %d\n", 1659 ATANAME(ap, xa->at), xa->state); 1660 ccbh->status = CAM_REQ_CMP_ERR; 1661 break; 1662 } 1663 ccb->csio.resid = xa->resid; 1664 sili_ata_put_xfer(xa); 1665 sili_os_unlock_port(ap); 1666 xpt_done(ccb); 1667 sili_os_lock_port(ap); 1668 } 1669 1670 /* 1671 * Completion function for ATA_PORT_T_ATAPI I/O 1672 * 1673 * Sense data is returned in the rfis. 1674 */ 1675 static 1676 void 1677 sili_atapi_complete_cmd(struct ata_xfer *xa) 1678 { 1679 union ccb *ccb = xa->atascsi_private; 1680 struct ccb_hdr *ccbh = &ccb->ccb_h; 1681 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1682 scsi_cdb_t cdb; 1683 1684 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1685 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1686 1687 switch(xa->state) { 1688 case ATA_S_COMPLETE: 1689 ccbh->status = CAM_REQ_CMP; 1690 ccb->csio.scsi_status = SCSI_STATUS_OK; 1691 break; 1692 case ATA_S_ERROR: 1693 ccbh->status = CAM_SCSI_STATUS_ERROR; 1694 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1695 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1696 break; 1697 case ATA_S_TIMEOUT: 1698 kprintf("%s: cmd %d: timeout\n", 1699 PORTNAME(ap), cdb->generic.opcode); 1700 ccbh->status = CAM_CMD_TIMEOUT; 1701 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1702 sili_ata_dummy_sense(&ccb->csio.sense_data); 1703 break; 1704 default: 1705 kprintf("%s: cmd %d: unknown state %d\n", 1706 PORTNAME(ap), cdb->generic.opcode, xa->state); 1707 ccbh->status = CAM_REQ_CMP_ERR; 1708 break; 1709 } 1710 ccb->csio.resid = xa->resid; 1711 sili_ata_put_xfer(xa); 1712 sili_os_unlock_port(ap); 1713 xpt_done(ccb); 1714 sili_os_lock_port(ap); 1715 } 1716 1717 /* 1718 * Construct dummy sense data for errors on DISKs 1719 */ 1720 static 1721 void 1722 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1723 { 1724 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1725 sense_data->segment = 0; 1726 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1727 sense_data->info[0] = 0; 1728 sense_data->info[1] = 0; 1729 sense_data->info[2] = 0; 1730 sense_data->info[3] = 0; 1731 sense_data->extra_len = 0; 1732 } 1733 1734 /* 1735 * Construct atapi sense data for errors on ATAPI 1736 * 1737 * The ATAPI sense data is stored in the passed rfis and must be converted 1738 * to SCSI sense data. 1739 */ 1740 static 1741 void 1742 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1743 struct scsi_sense_data *sense_data) 1744 { 1745 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1746 sense_data->segment = 0; 1747 sense_data->flags = (rfis->error & 0xF0) >> 4; 1748 if (rfis->error & 0x04) 1749 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1750 if (rfis->error & 0x02) 1751 sense_data->flags |= SSD_EOM; 1752 if (rfis->error & 0x01) 1753 sense_data->flags |= SSD_ILI; 1754 sense_data->info[0] = 0; 1755 sense_data->info[1] = 0; 1756 sense_data->info[2] = 0; 1757 sense_data->info[3] = 0; 1758 sense_data->extra_len = 0; 1759 } 1760 1761 static 1762 void 1763 sili_strip_string(const char **basep, int *lenp) 1764 { 1765 const char *base = *basep; 1766 int len = *lenp; 1767 1768 while (len && (*base == 0 || *base == ' ')) { 1769 --len; 1770 ++base; 1771 } 1772 while (len && (base[len-1] == 0 || base[len-1] == ' ')) 1773 --len; 1774 *basep = base; 1775 *lenp = len; 1776 } 1777