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 */ 53 /* 54 * Implement each SATA port as its own SCSI bus on CAM. This way we can 55 * implement future port multiplier features as individual devices on the 56 * bus. 57 * 58 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest 59 * was written natively for DragonFly. 60 */ 61 62 #include "sili.h" 63 64 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb); 65 static void sili_xpt_poll(struct cam_sim *sim); 66 static void sili_xpt_scsi_disk_io(struct sili_port *ap, 67 struct ata_port *at, union ccb *ccb); 68 static void sili_xpt_scsi_atapi_io(struct sili_port *ap, 69 struct ata_port *at, union ccb *ccb); 70 static void sili_xpt_page_inquiry(struct sili_port *ap, 71 struct ata_port *at, union ccb *ccb); 72 73 static void sili_ata_complete_disk_rw(struct ata_xfer *xa); 74 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa); 75 static void sili_atapi_complete_cmd(struct ata_xfer *xa); 76 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data); 77 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 78 struct scsi_sense_data *sense_data); 79 80 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at); 81 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at); 82 static void sili_ata_dummy_done(struct ata_xfer *xa); 83 static void ata_fix_identify(struct ata_identify *id); 84 static int sili_set_xfer(struct sili_port *ap, struct ata_port *atx); 85 static void sili_cam_rescan(struct sili_port *ap); 86 static void sili_strip_string(const char **basep, int *lenp); 87 88 int 89 sili_cam_attach(struct sili_port *ap) 90 { 91 struct cam_devq *devq; 92 struct cam_sim *sim; 93 int error; 94 int unit; 95 96 /* 97 * We want at least one ccb to be available for error processing 98 * so don't let CAM use more then ncmds - 1. 99 */ 100 unit = device_get_unit(ap->ap_sc->sc_dev); 101 if (ap->ap_sc->sc_ncmds > 1) 102 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1); 103 else 104 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds); 105 if (devq == NULL) { 106 return (ENOMEM); 107 } 108 109 /* 110 * Give the devq enough room to run with 32 max_dev_transactions, 111 * but set the overall max tags to 1 until NCQ is negotiated. 112 */ 113 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili", 114 (void *)ap, unit, &ap->ap_sim_lock, 115 32, 1, devq); 116 cam_simq_release(devq); 117 if (sim == NULL) { 118 return (ENOMEM); 119 } 120 ap->ap_sim = sim; 121 sili_os_unlock_port(ap); 122 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 123 error = xpt_bus_register(ap->ap_sim, ap->ap_num); 124 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 125 sili_os_lock_port(ap); 126 if (error != CAM_SUCCESS) { 127 sili_cam_detach(ap); 128 return (EINVAL); 129 } 130 ap->ap_flags |= AP_F_BUS_REGISTERED; 131 132 if (ap->ap_probe == ATA_PROBE_NEED_IDENT) 133 error = sili_cam_probe(ap, NULL); 134 else 135 error = 0; 136 if (error) { 137 sili_cam_detach(ap); 138 return (EIO); 139 } 140 ap->ap_flags |= AP_F_CAM_ATTACHED; 141 142 return(0); 143 } 144 145 /* 146 * The state of the port has changed. 147 * 148 * If atx is NULL the physical port has changed state. 149 * If atx is non-NULL a particular target behind a PM has changed state. 150 * 151 * If found is -1 the target state must be queued to a non-interrupt context. 152 * (only works with at == NULL). 153 * 154 * If found is 0 the target was removed. 155 * If found is 1 the target was inserted. 156 */ 157 void 158 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found) 159 { 160 struct cam_path *tmppath; 161 int status; 162 int target; 163 164 target = atx ? atx->at_target : CAM_TARGET_WILDCARD; 165 166 if (ap->ap_sim == NULL) 167 return; 168 if (found == CAM_TARGET_WILDCARD) { 169 status = xpt_create_path(&tmppath, NULL, 170 cam_sim_path(ap->ap_sim), 171 target, CAM_LUN_WILDCARD); 172 if (status != CAM_REQ_CMP) 173 return; 174 sili_cam_rescan(ap); 175 } else { 176 status = xpt_create_path(&tmppath, NULL, 177 cam_sim_path(ap->ap_sim), 178 target, 179 CAM_LUN_WILDCARD); 180 if (status != CAM_REQ_CMP) 181 return; 182 #if 0 183 /* 184 * This confuses CAM 185 */ 186 if (found) 187 xpt_async(AC_FOUND_DEVICE, tmppath, NULL); 188 else 189 xpt_async(AC_LOST_DEVICE, tmppath, NULL); 190 #endif 191 } 192 xpt_free_path(tmppath); 193 } 194 195 void 196 sili_cam_detach(struct sili_port *ap) 197 { 198 int error; 199 200 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0) 201 return; 202 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 203 if (ap->ap_sim) { 204 xpt_freeze_simq(ap->ap_sim, 1); 205 } 206 if (ap->ap_flags & AP_F_BUS_REGISTERED) { 207 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim)); 208 KKASSERT(error == CAM_REQ_CMP); 209 ap->ap_flags &= ~AP_F_BUS_REGISTERED; 210 } 211 if (ap->ap_sim) { 212 cam_sim_free(ap->ap_sim); 213 ap->ap_sim = NULL; 214 } 215 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 216 ap->ap_flags &= ~AP_F_CAM_ATTACHED; 217 } 218 219 /* 220 * Once the SILI port has been attached we need to probe for a device or 221 * devices on the port and setup various options. 222 * 223 * If at is NULL we are probing the direct-attached device on the port, 224 * which may or may not be a port multiplier. 225 */ 226 int 227 sili_cam_probe(struct sili_port *ap, struct ata_port *atx) 228 { 229 struct ata_port *at; 230 struct ata_xfer *xa; 231 u_int64_t capacity; 232 u_int64_t capacity_bytes; 233 int model_len; 234 int firmware_len; 235 int serial_len; 236 int error; 237 int devncqdepth; 238 int i; 239 const char *model_id; 240 const char *firmware_id; 241 const char *serial_id; 242 const char *wcstr; 243 const char *rastr; 244 const char *scstr; 245 const char *type; 246 247 error = EIO; 248 249 /* 250 * Delayed CAM attachment for initial probe, sim may be NULL 251 */ 252 if (ap->ap_sim == NULL) 253 return(0); 254 255 /* 256 * A NULL atx indicates a probe of the directly connected device. 257 * A non-NULL atx indicates a device connected via a port multiplier. 258 * We need to preserve atx for calls to sili_ata_get_xfer(). 259 * 260 * at is always non-NULL. For directly connected devices we supply 261 * an (at) pointing to target 0. 262 */ 263 if (atx == NULL) { 264 at = ap->ap_ata; /* direct attached - device 0 */ 265 if (ap->ap_type == ATA_PORT_T_PM) { 266 kprintf("%s: Found Port Multiplier\n", 267 ATANAME(ap, atx)); 268 return (0); 269 } 270 at->at_type = ap->ap_type; 271 } else { 272 at = atx; 273 if (atx->at_type == ATA_PORT_T_PM) { 274 kprintf("%s: Bogus device, reducing port count to %d\n", 275 ATANAME(ap, atx), atx->at_target); 276 if (ap->ap_pmcount > atx->at_target) 277 ap->ap_pmcount = atx->at_target; 278 goto err; 279 } 280 } 281 if (ap->ap_type == ATA_PORT_T_NONE) 282 goto err; 283 if (at->at_type == ATA_PORT_T_NONE) 284 goto err; 285 286 /* 287 * Issue identify, saving the result 288 */ 289 xa = sili_ata_get_xfer(ap, atx); 290 xa->complete = sili_ata_dummy_done; 291 xa->data = &at->at_identify; 292 xa->datalen = sizeof(at->at_identify); 293 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 294 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 295 296 switch(at->at_type) { 297 case ATA_PORT_T_DISK: 298 xa->fis->command = ATA_C_IDENTIFY; 299 type = "DISK"; 300 break; 301 case ATA_PORT_T_ATAPI: 302 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 303 xa->flags |= ATA_F_AUTOSENSE; 304 type = "ATAPI"; 305 break; 306 default: 307 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 308 type = "UNKNOWN(ATAPI?)"; 309 break; 310 } 311 xa->fis->features = 0; 312 xa->fis->device = 0; 313 xa->timeout = 1000; 314 315 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 316 kprintf("%s: Detected %s device but unable to IDENTIFY\n", 317 ATANAME(ap, atx), type); 318 sili_ata_put_xfer(xa); 319 goto err; 320 } 321 sili_ata_put_xfer(xa); 322 323 ata_fix_identify(&at->at_identify); 324 325 /* 326 * Read capacity using SATA probe info. 327 */ 328 if (le16toh(at->at_identify.cmdset83) & 0x0400) { 329 /* LBA48 feature set supported */ 330 capacity = 0; 331 for (i = 3; i >= 0; --i) { 332 capacity <<= 16; 333 capacity += 334 le16toh(at->at_identify.addrsecxt[i]); 335 } 336 } else { 337 capacity = le16toh(at->at_identify.addrsec[1]); 338 capacity <<= 16; 339 capacity += le16toh(at->at_identify.addrsec[0]); 340 } 341 at->at_capacity = capacity; 342 if (atx == NULL) 343 ap->ap_probe = ATA_PROBE_GOOD; 344 345 capacity_bytes = capacity * 512; 346 347 /* 348 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated 349 * number of slots and limit the number of CAM ccb's to one less 350 * so we always have a slot available for recovery. 351 * 352 * NCQ is not used if ap_ncqdepth is 1 or the host controller does 353 * not support it, and in that case the driver can handle extra 354 * ccb's. 355 * 356 * NCQ is currently used only with direct-attached disks. It is 357 * not used with port multipliers or direct-attached ATAPI devices. 358 * 359 * Remember at least one extra CCB needs to be reserved for the 360 * error ccb. 361 */ 362 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) && 363 at->at_type == ATA_PORT_T_DISK && 364 (le16toh(at->at_identify.satacap) & (1 << 8))) { 365 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; 366 devncqdepth = at->at_ncqdepth; 367 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) 368 at->at_ncqdepth = ap->ap_sc->sc_ncmds; 369 if (at->at_ncqdepth > 1) { 370 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { 371 xa = sili_ata_get_xfer(ap, atx); 372 if (xa->tag < at->at_ncqdepth) { 373 xa->state = ATA_S_COMPLETE; 374 sili_ata_put_xfer(xa); 375 } 376 } 377 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { 378 cam_sim_set_max_tags(ap->ap_sim, 379 at->at_ncqdepth - 1); 380 } 381 } 382 } else { 383 devncqdepth = 0; 384 } 385 386 /* 387 * Make the model string a bit more presentable 388 */ 389 for (model_len = 40; model_len; --model_len) { 390 if (at->at_identify.model[model_len-1] == ' ') 391 continue; 392 if (at->at_identify.model[model_len-1] == 0) 393 continue; 394 break; 395 } 396 397 model_len = sizeof(at->at_identify.model); 398 model_id = at->at_identify.model; 399 sili_strip_string(&model_id, &model_len); 400 401 firmware_len = sizeof(at->at_identify.firmware); 402 firmware_id = at->at_identify.firmware; 403 sili_strip_string(&firmware_id, &firmware_len); 404 405 serial_len = sizeof(at->at_identify.serial); 406 serial_id = at->at_identify.serial; 407 sili_strip_string(&serial_id, &serial_len); 408 409 /* 410 * Generate informatiive strings. 411 * 412 * NOTE: We do not automatically set write caching, lookahead, 413 * or the security state for ATAPI devices. 414 */ 415 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { 416 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) 417 wcstr = "enabled"; 418 else if (at->at_type == ATA_PORT_T_ATAPI) 419 wcstr = "disabled"; 420 else 421 wcstr = "enabling"; 422 } else { 423 wcstr = "notsupp"; 424 } 425 426 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { 427 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) 428 rastr = "enabled"; 429 else if (at->at_type == ATA_PORT_T_ATAPI) 430 rastr = "disabled"; 431 else 432 rastr = "enabling"; 433 } else { 434 rastr = "notsupp"; 435 } 436 437 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { 438 if (at->at_identify.securestatus & ATA_SECURE_FROZEN) 439 scstr = "frozen"; 440 else if (at->at_type == ATA_PORT_T_ATAPI) 441 scstr = "unfrozen"; 442 else if (SiliNoFeatures & (1 << ap->ap_num)) 443 scstr = "<disabled>"; 444 else 445 scstr = "freezing"; 446 } else { 447 scstr = "notsupp"; 448 } 449 450 kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n" 451 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " 452 "capacity=%lld.%02dMB\n", 453 454 ATANAME(ap, atx), 455 type, 456 model_len, model_len, model_id, 457 firmware_len, firmware_len, firmware_id, 458 serial_len, serial_len, serial_id, 459 460 ATANAME(ap, atx), 461 devncqdepth, ap->ap_sc->sc_ncmds, 462 at->at_identify.satacap, 463 at->at_identify.satafsup, 464 (at->at_ncqdepth > 1 ? "YES" : "NO"), 465 (long long)capacity_bytes / (1024 * 1024), 466 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) 467 ); 468 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", 469 ATANAME(ap, atx), 470 at->at_identify.features85, 471 at->at_identify.features86, 472 at->at_identify.features87, 473 wcstr, 474 rastr, 475 scstr 476 ); 477 478 /* 479 * Additional type-specific probing 480 */ 481 switch(at->at_type) { 482 case ATA_PORT_T_DISK: 483 error = sili_cam_probe_disk(ap, atx); 484 break; 485 case ATA_PORT_T_ATAPI: 486 error = sili_cam_probe_atapi(ap, atx); 487 break; 488 default: 489 error = EIO; 490 break; 491 } 492 err: 493 if (error) { 494 at->at_probe = ATA_PROBE_FAILED; 495 if (atx == NULL) 496 ap->ap_probe = at->at_probe; 497 } else { 498 at->at_probe = ATA_PROBE_GOOD; 499 if (atx == NULL) 500 ap->ap_probe = at->at_probe; 501 } 502 return (error); 503 } 504 505 /* 506 * DISK-specific probe after initial ident 507 */ 508 static int 509 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx) 510 { 511 struct ata_port *at; 512 struct ata_xfer *xa; 513 514 at = atx ? atx : ap->ap_ata; 515 516 /* 517 * Set dummy xfer mode 518 */ 519 sili_set_xfer(ap, atx); 520 521 /* 522 * Enable write cache if supported 523 * 524 * NOTE: "WD My Book" external disk devices have a very poor 525 * daughter board between the the ESATA and the HD. Sending 526 * any ATA_C_SET_FEATURES commands will break the hardware port 527 * with a fatal protocol error. However, this device also 528 * indicates that WRITECACHE is already on and READAHEAD is 529 * not supported so we avoid the issue. 530 */ 531 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) && 532 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) { 533 xa = sili_ata_get_xfer(ap, atx); 534 xa->complete = sili_ata_dummy_done; 535 xa->fis->command = ATA_C_SET_FEATURES; 536 /*xa->fis->features = ATA_SF_WRITECACHE_EN;*/ 537 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 538 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 539 xa->fis->device = 0; 540 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 541 xa->timeout = 1000; 542 xa->datalen = 0; 543 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 544 at->at_features |= ATA_PORT_F_WCACHE; 545 else 546 kprintf("%s: Unable to enable write-caching\n", 547 ATANAME(ap, atx)); 548 sili_ata_put_xfer(xa); 549 } 550 551 /* 552 * Enable readahead if supported 553 */ 554 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) && 555 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) { 556 xa = sili_ata_get_xfer(ap, atx); 557 xa->complete = sili_ata_dummy_done; 558 xa->fis->command = ATA_C_SET_FEATURES; 559 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 560 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 561 xa->fis->device = 0; 562 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 563 xa->timeout = 1000; 564 xa->datalen = 0; 565 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 566 at->at_features |= ATA_PORT_F_RAHEAD; 567 else 568 kprintf("%s: Unable to enable read-ahead\n", 569 ATANAME(ap, atx)); 570 sili_ata_put_xfer(xa); 571 } 572 573 /* 574 * FREEZE LOCK the device so malicious users can't lock it on us. 575 * As there is no harm in issuing this to devices that don't 576 * support the security feature set we just send it, and don't bother 577 * checking if the device sends a command abort to tell us it doesn't 578 * support it 579 */ 580 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) && 581 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 && 582 (SiliNoFeatures & (1 << ap->ap_num)) == 0) { 583 xa = sili_ata_get_xfer(ap, atx); 584 xa->complete = sili_ata_dummy_done; 585 xa->fis->command = ATA_C_SEC_FREEZE_LOCK; 586 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 587 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 588 xa->timeout = 1000; 589 xa->datalen = 0; 590 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 591 at->at_features |= ATA_PORT_F_FRZLCK; 592 else 593 kprintf("%s: Unable to set security freeze\n", 594 ATANAME(ap, atx)); 595 sili_ata_put_xfer(xa); 596 } 597 598 return (0); 599 } 600 601 /* 602 * ATAPI-specific probe after initial ident 603 */ 604 static int 605 sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *atx) 606 { 607 sili_set_xfer(ap, atx); 608 return(0); 609 } 610 611 /* 612 * Setting the transfer mode is irrelevant for the SATA transport 613 * but some (atapi) devices seem to need it anyway. In addition 614 * if we are running through a SATA->PATA converter for some reason 615 * beyond my comprehension we might have to set the mode. 616 * 617 * We only support DMA modes for SATA attached devices, so don't bother 618 * with legacy modes. 619 */ 620 static int 621 sili_set_xfer(struct sili_port *ap, struct ata_port *atx) 622 { 623 struct ata_port *at; 624 struct ata_xfer *xa; 625 u_int16_t mode; 626 u_int16_t mask; 627 628 at = atx ? atx : ap->ap_ata; 629 630 /* 631 * Figure out the supported UDMA mode. Ignore other legacy modes. 632 */ 633 mask = le16toh(at->at_identify.ultradma); 634 if ((mask & 0xFF) == 0 || mask == 0xFFFF) 635 return(0); 636 mask &= 0xFF; 637 mode = 0x4F; 638 while ((mask & 0x8000) == 0) { 639 mask <<= 1; 640 --mode; 641 } 642 643 /* 644 * SATA atapi devices often still report a dma mode, even though 645 * it is irrelevant for SATA transport. It is also possible that 646 * we are running through a SATA->PATA converter and seeing the 647 * PATA dma mode. 648 * 649 * In this case the device may require a (dummy) SETXFER to be 650 * sent before it will work properly. 651 */ 652 xa = sili_ata_get_xfer(ap, atx); 653 xa->complete = sili_ata_dummy_done; 654 xa->fis->command = ATA_C_SET_FEATURES; 655 xa->fis->features = ATA_SF_SETXFER; 656 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 657 xa->fis->sector_count = mode; 658 xa->flags = ATA_F_PIO | ATA_F_POLL; 659 xa->timeout = 1000; 660 xa->datalen = 0; 661 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 662 kprintf("%s: Unable to set dummy xfer mode \n", 663 ATANAME(ap, atx)); 664 } else if (bootverbose) { 665 kprintf("%s: Set dummy xfer mode to %02x\n", 666 ATANAME(ap, atx), mode); 667 } 668 sili_ata_put_xfer(xa); 669 return(0); 670 } 671 672 /* 673 * Fix byte ordering so buffers can be accessed as 674 * strings. 675 */ 676 static void 677 ata_fix_identify(struct ata_identify *id) 678 { 679 u_int16_t *swap; 680 int i; 681 682 swap = (u_int16_t *)id->serial; 683 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++) 684 swap[i] = bswap16(swap[i]); 685 686 swap = (u_int16_t *)id->firmware; 687 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++) 688 swap[i] = bswap16(swap[i]); 689 690 swap = (u_int16_t *)id->model; 691 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++) 692 swap[i] = bswap16(swap[i]); 693 } 694 695 /* 696 * Dummy done callback for xa. 697 */ 698 static void 699 sili_ata_dummy_done(struct ata_xfer *xa) 700 { 701 } 702 703 /* 704 * Use an engineering request to initiate a target scan for devices 705 * behind a port multiplier. 706 * 707 * An asynchronous bus scan is used to avoid reentrancy issues. 708 */ 709 static void 710 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 711 { 712 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 713 714 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) { 715 ap->ap_flags &= ~AP_F_SCAN_RUNNING; 716 if (ap->ap_flags & AP_F_SCAN_REQUESTED) { 717 ap->ap_flags &= ~AP_F_SCAN_REQUESTED; 718 sili_cam_rescan(ap); 719 } 720 ap->ap_flags |= AP_F_SCAN_COMPLETED; 721 wakeup(&ap->ap_flags); 722 } 723 xpt_free_ccb(ccb); 724 } 725 726 static void 727 sili_cam_rescan(struct sili_port *ap) 728 { 729 struct cam_path *path; 730 union ccb *ccb; 731 int status; 732 int i; 733 734 if (ap->ap_flags & AP_F_SCAN_RUNNING) { 735 ap->ap_flags |= AP_F_SCAN_REQUESTED; 736 return; 737 } 738 ap->ap_flags |= AP_F_SCAN_RUNNING; 739 for (i = 0; i < SILI_MAX_PMPORTS; ++i) { 740 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN; 741 } 742 743 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 744 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 745 if (status != CAM_REQ_CMP) 746 return; 747 748 ccb = xpt_alloc_ccb(); 749 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 750 ccb->ccb_h.func_code = XPT_ENG_EXEC; 751 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 752 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 753 ccb->crcn.flags = CAM_FLAG_NONE; 754 xpt_action_async(ccb); 755 } 756 757 static void 758 sili_xpt_rescan(struct sili_port *ap) 759 { 760 struct cam_path *path; 761 union ccb *ccb; 762 int status; 763 764 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 765 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 766 if (status != CAM_REQ_CMP) 767 return; 768 769 ccb = xpt_alloc_ccb(); 770 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 771 ccb->ccb_h.func_code = XPT_SCAN_BUS; 772 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 773 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 774 ccb->crcn.flags = CAM_FLAG_NONE; 775 xpt_action_async(ccb); 776 } 777 778 /* 779 * Action function - dispatch command 780 */ 781 static 782 void 783 sili_xpt_action(struct cam_sim *sim, union ccb *ccb) 784 { 785 struct sili_port *ap; 786 struct ata_port *at, *atx; 787 struct ccb_hdr *ccbh; 788 int unit; 789 790 /* XXX lock */ 791 ap = cam_sim_softc(sim); 792 at = ap->ap_ata; 793 atx = NULL; 794 KKASSERT(ap != NULL); 795 ccbh = &ccb->ccb_h; 796 unit = cam_sim_unit(sim); 797 798 /* 799 * Early failure checks. These checks do not apply to XPT_PATH_INQ, 800 * otherwise the bus rescan will not remove the dead devices when 801 * unplugging a PM. 802 * 803 * For non-wildcards we have one target (0) and one lun (0), 804 * unless we have a port multiplier. 805 * 806 * A wildcard target indicates only the general bus is being 807 * probed. 808 * 809 * Calculate at and atx. at is always non-NULL. atx is only 810 * NULL for direct-attached devices. It will be non-NULL for 811 * devices behind a port multiplier. 812 * 813 * XXX What do we do with a LUN wildcard? 814 */ 815 if (ccbh->target_id != CAM_TARGET_WILDCARD && 816 ccbh->func_code != XPT_PATH_INQ) { 817 if (ap->ap_type == ATA_PORT_T_NONE) { 818 ccbh->status = CAM_DEV_NOT_THERE; 819 xpt_done(ccb); 820 return; 821 } 822 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) { 823 ccbh->status = CAM_DEV_NOT_THERE; 824 xpt_done(ccb); 825 return; 826 } 827 at += ccbh->target_id; 828 if (ap->ap_type == ATA_PORT_T_PM) 829 atx = at; 830 831 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) { 832 ccbh->status = CAM_DEV_NOT_THERE; 833 xpt_done(ccb); 834 return; 835 } 836 } 837 838 /* 839 * Switch on the meta XPT command 840 */ 841 switch(ccbh->func_code) { 842 case XPT_ENG_EXEC: 843 /* 844 * This routine is called after a port multiplier has been 845 * probed. 846 */ 847 ccbh->status = CAM_REQ_CMP; 848 sili_os_lock_port(ap); 849 sili_port_state_machine(ap, 0); 850 sili_os_unlock_port(ap); 851 xpt_done(ccb); 852 sili_xpt_rescan(ap); 853 break; 854 case XPT_PATH_INQ: 855 /* 856 * This command always succeeds, otherwise the bus scan 857 * will not detach dead devices. 858 */ 859 ccb->cpi.version_num = 1; 860 ccb->cpi.hba_inquiry = 0; 861 ccb->cpi.target_sprt = 0; 862 ccb->cpi.hba_misc = PIM_SEQSCAN; 863 ccb->cpi.hba_eng_cnt = 0; 864 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags)); 865 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1; 866 ccb->cpi.max_lun = 0; 867 ccb->cpi.async_flags = 0; 868 ccb->cpi.hpath_id = 0; 869 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1; 870 ccb->cpi.unit_number = cam_sim_unit(sim); 871 ccb->cpi.bus_id = cam_sim_bus(sim); 872 ccb->cpi.base_transfer_speed = 150000; 873 ccb->cpi.transport = XPORT_SATA; 874 ccb->cpi.transport_version = 1; 875 ccb->cpi.protocol = PROTO_SCSI; 876 ccb->cpi.protocol_version = SCSI_REV_2; 877 878 ccbh->status = CAM_REQ_CMP; 879 if (ccbh->target_id == CAM_TARGET_WILDCARD) { 880 sili_os_lock_port(ap); 881 sili_port_state_machine(ap, 0); 882 sili_os_unlock_port(ap); 883 } else { 884 switch(sili_pread(ap, SILI_PREG_SSTS) & 885 SILI_PREG_SSTS_SPD) { 886 case SILI_PREG_SSTS_SPD_GEN1: 887 ccb->cpi.base_transfer_speed = 150000; 888 break; 889 case SILI_PREG_SSTS_SPD_GEN2: 890 ccb->cpi.base_transfer_speed = 300000; 891 break; 892 default: 893 /* unknown */ 894 ccb->cpi.base_transfer_speed = 1000; 895 break; 896 } 897 #if 0 898 if (ap->ap_type == ATA_PORT_T_NONE) 899 ccbh->status = CAM_DEV_NOT_THERE; 900 #endif 901 } 902 xpt_done(ccb); 903 break; 904 case XPT_RESET_DEV: 905 sili_os_lock_port(ap); 906 if (ap->ap_type == ATA_PORT_T_NONE) { 907 ccbh->status = CAM_DEV_NOT_THERE; 908 } else { 909 sili_port_reset(ap, atx, 0); 910 ccbh->status = CAM_REQ_CMP; 911 } 912 sili_os_unlock_port(ap); 913 xpt_done(ccb); 914 break; 915 case XPT_RESET_BUS: 916 sili_os_lock_port(ap); 917 sili_port_reset(ap, NULL, 1); 918 sili_os_unlock_port(ap); 919 ccbh->status = CAM_REQ_CMP; 920 xpt_done(ccb); 921 break; 922 case XPT_SET_TRAN_SETTINGS: 923 ccbh->status = CAM_FUNC_NOTAVAIL; 924 xpt_done(ccb); 925 break; 926 case XPT_GET_TRAN_SETTINGS: 927 ccb->cts.protocol = PROTO_SCSI; 928 ccb->cts.protocol_version = SCSI_REV_2; 929 ccb->cts.transport = XPORT_SATA; 930 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED; 931 ccb->cts.proto_specific.valid = 0; 932 ccb->cts.xport_specific.valid = 0; 933 ccbh->status = CAM_REQ_CMP; 934 xpt_done(ccb); 935 break; 936 case XPT_CALC_GEOMETRY: 937 cam_calc_geometry(&ccb->ccg, 1); 938 xpt_done(ccb); 939 break; 940 case XPT_SCSI_IO: 941 /* 942 * Our parallel startup code might have only probed through 943 * to the IDENT, so do the last step if necessary. 944 */ 945 if (at->at_probe == ATA_PROBE_NEED_IDENT) 946 sili_cam_probe(ap, atx); 947 if (at->at_probe != ATA_PROBE_GOOD) { 948 ccbh->status = CAM_DEV_NOT_THERE; 949 xpt_done(ccb); 950 break; 951 } 952 switch(at->at_type) { 953 case ATA_PORT_T_DISK: 954 sili_xpt_scsi_disk_io(ap, atx, ccb); 955 break; 956 case ATA_PORT_T_ATAPI: 957 sili_xpt_scsi_atapi_io(ap, atx, ccb); 958 break; 959 default: 960 ccbh->status = CAM_REQ_INVALID; 961 xpt_done(ccb); 962 break; 963 } 964 break; 965 default: 966 ccbh->status = CAM_REQ_INVALID; 967 xpt_done(ccb); 968 break; 969 } 970 } 971 972 /* 973 * Poll function. 974 * 975 * Generally this function gets called heavily when interrupts might be 976 * non-operational, during a halt/reboot or panic. 977 */ 978 static 979 void 980 sili_xpt_poll(struct cam_sim *sim) 981 { 982 struct sili_port *ap; 983 984 ap = cam_sim_softc(sim); 985 crit_enter(); 986 sili_os_lock_port(ap); 987 sili_port_intr(ap, 1); 988 sili_os_unlock_port(ap); 989 crit_exit(); 990 } 991 992 /* 993 * Convert the SCSI command in ccb to an ata_xfer command in xa 994 * for ATA_PORT_T_DISK operations. Set the completion function 995 * to convert the response back, then dispatch to the OpenBSD SILI 996 * layer. 997 * 998 * SILI DISK commands only support a limited command set, and we 999 * fake additional commands to make it play nice with the CAM subsystem. 1000 */ 1001 static 1002 void 1003 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx, 1004 union ccb *ccb) 1005 { 1006 struct ccb_hdr *ccbh; 1007 struct ccb_scsiio *csio; 1008 struct ata_xfer *xa; 1009 struct ata_port *at; 1010 struct ata_fis_h2d *fis; 1011 struct ata_pass_12 *atp12; 1012 struct ata_pass_16 *atp16; 1013 scsi_cdb_t cdb; 1014 union scsi_data *rdata; 1015 int rdata_len; 1016 u_int64_t capacity; 1017 u_int64_t lba; 1018 u_int32_t count; 1019 1020 ccbh = &ccb->csio.ccb_h; 1021 csio = &ccb->csio; 1022 at = atx ? atx : &ap->ap_ata[0]; 1023 1024 /* 1025 * XXX not passing NULL at for direct attach! 1026 */ 1027 xa = sili_ata_get_xfer(ap, atx); 1028 rdata = (void *)csio->data_ptr; 1029 rdata_len = csio->dxfer_len; 1030 1031 /* 1032 * Build the FIS or process the csio to completion. 1033 */ 1034 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1035 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1036 1037 switch(cdb->generic.opcode) { 1038 case REQUEST_SENSE: 1039 /* 1040 * Auto-sense everything, so explicit sense requests 1041 * return no-sense. 1042 */ 1043 ccbh->status = CAM_SCSI_STATUS_ERROR; 1044 break; 1045 case INQUIRY: 1046 /* 1047 * Inquiry supported features 1048 * 1049 * [opcode, byte2, page_code, length, control] 1050 */ 1051 if (cdb->inquiry.byte2 & SI_EVPD) { 1052 sili_xpt_page_inquiry(ap, at, ccb); 1053 } else { 1054 bzero(rdata, rdata_len); 1055 if (rdata_len < SHORT_INQUIRY_LENGTH) { 1056 ccbh->status = CAM_CCB_LEN_ERR; 1057 break; 1058 } 1059 if (rdata_len > sizeof(rdata->inquiry_data)) 1060 rdata_len = sizeof(rdata->inquiry_data); 1061 rdata->inquiry_data.device = T_DIRECT; 1062 rdata->inquiry_data.version = SCSI_REV_SPC2; 1063 rdata->inquiry_data.response_format = 2; 1064 rdata->inquiry_data.additional_length = 32; 1065 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 1066 bcopy(at->at_identify.model, 1067 rdata->inquiry_data.product, 1068 sizeof(rdata->inquiry_data.product)); 1069 bcopy(at->at_identify.firmware, 1070 rdata->inquiry_data.revision, 1071 sizeof(rdata->inquiry_data.revision)); 1072 ccbh->status = CAM_REQ_CMP; 1073 } 1074 break; 1075 case READ_CAPACITY_16: 1076 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 1077 ccbh->status = CAM_REQ_INVALID; 1078 break; 1079 } 1080 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1081 ccbh->status = CAM_CCB_LEN_ERR; 1082 break; 1083 } 1084 /* fall through */ 1085 case READ_CAPACITY: 1086 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1087 ccbh->status = CAM_CCB_LEN_ERR; 1088 break; 1089 } 1090 1091 capacity = at->at_capacity; 1092 1093 bzero(rdata, rdata_len); 1094 if (cdb->generic.opcode == READ_CAPACITY) { 1095 rdata_len = sizeof(rdata->read_capacity_data); 1096 if (capacity > 0xFFFFFFFFU) 1097 capacity = 0xFFFFFFFFU; 1098 bzero(&rdata->read_capacity_data, rdata_len); 1099 scsi_ulto4b((u_int32_t)capacity - 1, 1100 rdata->read_capacity_data.addr); 1101 scsi_ulto4b(512, rdata->read_capacity_data.length); 1102 } else { 1103 rdata_len = sizeof(rdata->read_capacity_data_16); 1104 bzero(&rdata->read_capacity_data_16, rdata_len); 1105 scsi_u64to8b(capacity - 1, 1106 rdata->read_capacity_data_16.addr); 1107 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1108 } 1109 ccbh->status = CAM_REQ_CMP; 1110 break; 1111 case SYNCHRONIZE_CACHE: 1112 /* 1113 * Synchronize cache. Specification says this can take 1114 * greater then 30 seconds so give it at least 45. 1115 */ 1116 fis = xa->fis; 1117 fis->flags = ATA_H2D_FLAGS_CMD; 1118 fis->command = ATA_C_FLUSH_CACHE; 1119 fis->device = 0; 1120 if (xa->timeout < 45000) 1121 xa->timeout = 45000; 1122 xa->datalen = 0; 1123 xa->flags = ATA_F_READ; 1124 xa->complete = sili_ata_complete_disk_synchronize_cache; 1125 break; 1126 case TEST_UNIT_READY: 1127 case START_STOP_UNIT: 1128 case PREVENT_ALLOW: 1129 /* 1130 * Just silently return success 1131 */ 1132 ccbh->status = CAM_REQ_CMP; 1133 rdata_len = 0; 1134 break; 1135 case ATA_PASS_12: 1136 atp12 = &cdb->ata_pass_12; 1137 fis = xa->fis; 1138 /* 1139 * Figure out the flags to be used, depending on the 1140 * direction of the CAM request. 1141 */ 1142 switch (ccbh->flags & CAM_DIR_MASK) { 1143 case CAM_DIR_IN: 1144 xa->flags = ATA_F_READ; 1145 break; 1146 case CAM_DIR_OUT: 1147 xa->flags = ATA_F_WRITE; 1148 break; 1149 default: 1150 xa->flags = 0; 1151 } 1152 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1153 xa->data = csio->data_ptr; 1154 xa->datalen = csio->dxfer_len; 1155 xa->complete = sili_ata_complete_disk_rw; 1156 xa->timeout = ccbh->timeout; 1157 1158 /* 1159 * Populate the fis from the information we received through CAM 1160 * ATA passthrough. 1161 */ 1162 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */ 1163 fis->features = atp12->features; 1164 fis->sector_count = atp12->sector_count; 1165 fis->lba_low = atp12->lba_low; 1166 fis->lba_mid = atp12->lba_mid; 1167 fis->lba_high = atp12->lba_high; 1168 fis->device = atp12->device; /* maybe always 0? */ 1169 fis->command = atp12->command; 1170 fis->control = atp12->control; 1171 1172 /* 1173 * Mark as in progress so it is sent to the device. 1174 */ 1175 ccbh->status = CAM_REQ_INPROG; 1176 break; 1177 case ATA_PASS_16: 1178 atp16 = &cdb->ata_pass_16; 1179 fis = xa->fis; 1180 /* 1181 * Figure out the flags to be used, depending on the direction of the 1182 * CAM request. 1183 */ 1184 switch (ccbh->flags & CAM_DIR_MASK) { 1185 case CAM_DIR_IN: 1186 xa->flags = ATA_F_READ; 1187 break; 1188 case CAM_DIR_OUT: 1189 xa->flags = ATA_F_WRITE; 1190 break; 1191 default: 1192 xa->flags = 0; 1193 } 1194 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1195 xa->data = csio->data_ptr; 1196 xa->datalen = csio->dxfer_len; 1197 xa->complete = sili_ata_complete_disk_rw; 1198 xa->timeout = ccbh->timeout; 1199 1200 /* 1201 * Populate the fis from the information we received through CAM 1202 * ATA passthrough. 1203 */ 1204 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */ 1205 fis->features = atp16->features; 1206 fis->features_exp = atp16->features_ext; 1207 fis->sector_count = atp16->sector_count; 1208 fis->sector_count_exp = atp16->sector_count_ext; 1209 fis->lba_low = atp16->lba_low; 1210 fis->lba_low_exp = atp16->lba_low_ext; 1211 fis->lba_mid = atp16->lba_mid; 1212 fis->lba_mid_exp = atp16->lba_mid_ext; 1213 fis->lba_high = atp16->lba_high; 1214 fis->lba_mid_exp = atp16->lba_mid_ext; 1215 fis->device = atp16->device; /* maybe always 0? */ 1216 fis->command = atp16->command; 1217 1218 /* 1219 * Mark as in progress so it is sent to the device. 1220 */ 1221 ccbh->status = CAM_REQ_INPROG; 1222 break; 1223 default: 1224 switch(cdb->generic.opcode) { 1225 case READ_6: 1226 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1227 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1228 xa->flags = ATA_F_READ; 1229 break; 1230 case READ_10: 1231 lba = scsi_4btoul(cdb->rw_10.addr); 1232 count = scsi_2btoul(cdb->rw_10.length); 1233 xa->flags = ATA_F_READ; 1234 break; 1235 case READ_12: 1236 lba = scsi_4btoul(cdb->rw_12.addr); 1237 count = scsi_4btoul(cdb->rw_12.length); 1238 xa->flags = ATA_F_READ; 1239 break; 1240 case READ_16: 1241 lba = scsi_8btou64(cdb->rw_16.addr); 1242 count = scsi_4btoul(cdb->rw_16.length); 1243 xa->flags = ATA_F_READ; 1244 break; 1245 case WRITE_6: 1246 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1247 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1248 xa->flags = ATA_F_WRITE; 1249 break; 1250 case WRITE_10: 1251 lba = scsi_4btoul(cdb->rw_10.addr); 1252 count = scsi_2btoul(cdb->rw_10.length); 1253 xa->flags = ATA_F_WRITE; 1254 break; 1255 case WRITE_12: 1256 lba = scsi_4btoul(cdb->rw_12.addr); 1257 count = scsi_4btoul(cdb->rw_12.length); 1258 xa->flags = ATA_F_WRITE; 1259 break; 1260 case WRITE_16: 1261 lba = scsi_8btou64(cdb->rw_16.addr); 1262 count = scsi_4btoul(cdb->rw_16.length); 1263 xa->flags = ATA_F_WRITE; 1264 break; 1265 default: 1266 ccbh->status = CAM_REQ_INVALID; 1267 break; 1268 } 1269 if (ccbh->status != CAM_REQ_INPROG) 1270 break; 1271 1272 fis = xa->fis; 1273 fis->flags = ATA_H2D_FLAGS_CMD; 1274 fis->lba_low = (u_int8_t)lba; 1275 fis->lba_mid = (u_int8_t)(lba >> 8); 1276 fis->lba_high = (u_int8_t)(lba >> 16); 1277 fis->device = ATA_H2D_DEVICE_LBA; 1278 1279 /* 1280 * NCQ only for direct-attached disks, do not currently 1281 * try to use NCQ with port multipliers. 1282 * 1283 * XXX fixme SII chip can do NCQ w/ port multipliers. 1284 */ 1285 if (at->at_ncqdepth > 1 && 1286 at->at_type == ATA_PORT_T_DISK && 1287 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1288 (ccbh->flags & CAM_POLLED) == 0) { 1289 /* 1290 * Use NCQ - always uses 48 bit addressing 1291 */ 1292 xa->flags |= ATA_F_NCQ; 1293 fis->command = (xa->flags & ATA_F_WRITE) ? 1294 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1295 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1296 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1297 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1298 fis->sector_count = xa->tag << 3; 1299 fis->features = (u_int8_t)count; 1300 fis->features_exp = (u_int8_t)(count >> 8); 1301 } else if (count > 0x100 || lba > 0x0FFFFFFFU) { 1302 /* 1303 * Use LBA48 1304 */ 1305 fis->command = (xa->flags & ATA_F_WRITE) ? 1306 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1307 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1308 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1309 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1310 fis->sector_count = (u_int8_t)count; 1311 fis->sector_count_exp = (u_int8_t)(count >> 8); 1312 } else { 1313 /* 1314 * Use LBA 1315 * 1316 * NOTE: 256 sectors is supported, stored as 0. 1317 */ 1318 fis->command = (xa->flags & ATA_F_WRITE) ? 1319 ATA_C_WRITEDMA : ATA_C_READDMA; 1320 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1321 fis->sector_count = (u_int8_t)count; 1322 } 1323 1324 xa->data = csio->data_ptr; 1325 xa->datalen = csio->dxfer_len; 1326 xa->complete = sili_ata_complete_disk_rw; 1327 xa->timeout = ccbh->timeout; /* milliseconds */ 1328 if (ccbh->flags & CAM_POLLED) 1329 xa->flags |= ATA_F_POLL; 1330 break; 1331 } 1332 1333 /* 1334 * If the request is still in progress the xa and FIS have 1335 * been set up (except for the PM target), and must be dispatched. 1336 * Otherwise the request was completed. 1337 */ 1338 if (ccbh->status == CAM_REQ_INPROG) { 1339 KKASSERT(xa->complete != NULL); 1340 xa->atascsi_private = ccb; 1341 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1342 sili_os_lock_port(ap); 1343 xa->fis->flags |= at->at_target; 1344 sili_ata_cmd(xa); 1345 sili_os_unlock_port(ap); 1346 } else { 1347 sili_ata_put_xfer(xa); 1348 xpt_done(ccb); 1349 } 1350 } 1351 1352 /* 1353 * Convert the SCSI command in ccb to an ata_xfer command in xa 1354 * for ATA_PORT_T_ATAPI operations. Set the completion function 1355 * to convert the response back, then dispatch to the OpenBSD SILI 1356 * layer. 1357 */ 1358 static 1359 void 1360 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1361 union ccb *ccb) 1362 { 1363 struct ccb_hdr *ccbh; 1364 struct ccb_scsiio *csio; 1365 struct ata_xfer *xa; 1366 struct ata_fis_h2d *fis; 1367 scsi_cdb_t cdbs; 1368 scsi_cdb_t cdbd; 1369 int flags; 1370 struct ata_port *at; 1371 1372 ccbh = &ccb->csio.ccb_h; 1373 csio = &ccb->csio; 1374 at = atx ? atx : &ap->ap_ata[0]; 1375 1376 switch (ccbh->flags & CAM_DIR_MASK) { 1377 case CAM_DIR_IN: 1378 flags = ATA_F_PACKET | ATA_F_READ; 1379 break; 1380 case CAM_DIR_OUT: 1381 flags = ATA_F_PACKET | ATA_F_WRITE; 1382 break; 1383 case CAM_DIR_NONE: 1384 flags = ATA_F_PACKET; 1385 break; 1386 default: 1387 ccbh->status = CAM_REQ_INVALID; 1388 xpt_done(ccb); 1389 return; 1390 /* NOT REACHED */ 1391 } 1392 1393 /* 1394 * Special handling to get the rfis back into host memory while 1395 * still allowing the chip to run commands in parallel to 1396 * ATAPI devices behind a PM. 1397 */ 1398 flags |= ATA_F_AUTOSENSE; 1399 1400 /* 1401 * The command has to fit in the packet command buffer. 1402 */ 1403 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1404 ccbh->status = CAM_CCB_LEN_ERR; 1405 xpt_done(ccb); 1406 return; 1407 } 1408 1409 /* 1410 * Initialize the XA and FIS. It is unclear how much of 1411 * this has to mimic the equivalent ATA command. 1412 * 1413 * XXX not passing NULL at for direct attach! 1414 */ 1415 xa = sili_ata_get_xfer(ap, atx); 1416 fis = xa->fis; 1417 1418 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1419 fis->command = ATA_C_PACKET; 1420 fis->device = ATA_H2D_DEVICE_LBA; 1421 fis->sector_count = xa->tag << 3; 1422 if (flags & (ATA_F_READ | ATA_F_WRITE)) { 1423 if (flags & ATA_F_WRITE) { 1424 fis->features = ATA_H2D_FEATURES_DMA | 1425 ATA_H2D_FEATURES_DIR_WRITE; 1426 } else { 1427 fis->features = ATA_H2D_FEATURES_DMA | 1428 ATA_H2D_FEATURES_DIR_READ; 1429 } 1430 } else { 1431 fis->lba_mid = 0; 1432 fis->lba_high = 0; 1433 } 1434 fis->control = ATA_FIS_CONTROL_4BIT; 1435 1436 xa->flags = flags; 1437 xa->data = csio->data_ptr; 1438 xa->datalen = csio->dxfer_len; 1439 xa->timeout = ccbh->timeout; /* milliseconds */ 1440 1441 if (ccbh->flags & CAM_POLLED) 1442 xa->flags |= ATA_F_POLL; 1443 1444 /* 1445 * Copy the cdb to the packetcmd buffer in the FIS using a 1446 * convenient pointer in the xa. 1447 */ 1448 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1449 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1450 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1451 1452 #if 0 1453 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1454 cdbs->generic.opcode, 1455 csio->cdb_len, csio->dxfer_len); 1456 #endif 1457 1458 /* 1459 * Some ATAPI commands do not actually follow the SCSI standard. 1460 */ 1461 cdbd = (void *)xa->packetcmd; 1462 1463 switch(cdbd->generic.opcode) { 1464 case REQUEST_SENSE: 1465 /* 1466 * Force SENSE requests to the ATAPI sense length. 1467 * 1468 * It is unclear if this is needed or not. 1469 */ 1470 if (cdbd->sense.length == SSD_FULL_SIZE) { 1471 kprintf("%s: Shortening sense request\n", 1472 PORTNAME(ap)); 1473 cdbd->sense.length = offsetof(struct scsi_sense_data, 1474 extra_bytes[0]); 1475 } 1476 break; 1477 case INQUIRY: 1478 /* 1479 * Some ATAPI devices can't handle long inquiry lengths, 1480 * don't ask me why. Truncate the inquiry length. 1481 */ 1482 if (cdbd->inquiry.page_code == 0 && 1483 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1484 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1485 } 1486 break; 1487 case READ_6: 1488 case WRITE_6: 1489 /* 1490 * Convert *_6 to *_10 commands. Most ATAPI devices 1491 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1492 */ 1493 cdbd->rw_10.opcode |= 0x20; 1494 cdbd->rw_10.byte2 = 0; 1495 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1496 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1497 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1498 cdbd->rw_10.addr[3] = 0; 1499 cdbd->rw_10.reserved = 0; 1500 cdbd->rw_10.length[0] = 0; 1501 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1502 cdbd->rw_10.control = cdbs->rw_6.control; 1503 break; 1504 default: 1505 break; 1506 } 1507 1508 /* 1509 * And dispatch 1510 */ 1511 xa->complete = sili_atapi_complete_cmd; 1512 xa->atascsi_private = ccb; 1513 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1514 sili_os_lock_port(ap); 1515 sili_ata_cmd(xa); 1516 sili_os_unlock_port(ap); 1517 } 1518 1519 /* 1520 * Simulate page inquiries for disk attachments. 1521 */ 1522 static 1523 void 1524 sili_xpt_page_inquiry(struct sili_port *ap, struct ata_port *at, union ccb *ccb) 1525 { 1526 union { 1527 struct scsi_vpd_supported_page_list list; 1528 struct scsi_vpd_unit_serial_number serno; 1529 struct scsi_vpd_unit_devid devid; 1530 char buf[256]; 1531 } *page; 1532 scsi_cdb_t cdb; 1533 int i; 1534 int j; 1535 int len; 1536 1537 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO); 1538 1539 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1540 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1541 1542 switch(cdb->inquiry.page_code) { 1543 case SVPD_SUPPORTED_PAGE_LIST: 1544 i = 0; 1545 page->list.device = T_DIRECT; 1546 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST; 1547 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST; 1548 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER; 1549 page->list.list[i++] = SVPD_UNIT_DEVID; 1550 page->list.length = i; 1551 len = offsetof(struct scsi_vpd_supported_page_list, list[3]); 1552 break; 1553 case SVPD_UNIT_SERIAL_NUMBER: 1554 i = 0; 1555 j = sizeof(at->at_identify.serial); 1556 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i) 1557 ; 1558 while (j > i && at->at_identify.serial[j-1] == ' ') 1559 --j; 1560 page->serno.device = T_DIRECT; 1561 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER; 1562 page->serno.length = j - i; 1563 bcopy(at->at_identify.serial + i, 1564 page->serno.serial_num, j - i); 1565 len = offsetof(struct scsi_vpd_unit_serial_number, 1566 serial_num[j-i]); 1567 break; 1568 case SVPD_UNIT_DEVID: 1569 /* fall through for now */ 1570 default: 1571 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1572 len = 0; 1573 break; 1574 } 1575 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1576 if (len <= ccb->csio.dxfer_len) { 1577 ccb->ccb_h.status = CAM_REQ_CMP; 1578 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len); 1579 bcopy(page, ccb->csio.data_ptr, len); 1580 ccb->csio.resid = ccb->csio.dxfer_len - len; 1581 } else { 1582 ccb->ccb_h.status = CAM_CCB_LEN_ERR; 1583 } 1584 } 1585 kfree(page, M_DEVBUF); 1586 } 1587 1588 /* 1589 * Completion function for ATA_PORT_T_DISK cache synchronization. 1590 */ 1591 static 1592 void 1593 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1594 { 1595 union ccb *ccb = xa->atascsi_private; 1596 struct ccb_hdr *ccbh = &ccb->ccb_h; 1597 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1598 1599 switch(xa->state) { 1600 case ATA_S_COMPLETE: 1601 ccbh->status = CAM_REQ_CMP; 1602 ccb->csio.scsi_status = SCSI_STATUS_OK; 1603 break; 1604 case ATA_S_ERROR: 1605 kprintf("%s: synchronize_cache: error\n", 1606 ATANAME(ap, xa->at)); 1607 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1608 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1609 sili_ata_dummy_sense(&ccb->csio.sense_data); 1610 break; 1611 case ATA_S_TIMEOUT: 1612 kprintf("%s: synchronize_cache: timeout\n", 1613 ATANAME(ap, xa->at)); 1614 ccbh->status = CAM_CMD_TIMEOUT; 1615 break; 1616 default: 1617 kprintf("%s: synchronize_cache: unknown state %d\n", 1618 ATANAME(ap, xa->at), xa->state); 1619 ccbh->status = CAM_REQ_CMP_ERR; 1620 break; 1621 } 1622 sili_ata_put_xfer(xa); 1623 /*sili_os_unlock_port(ap);*/ 1624 xpt_done(ccb); 1625 /*sili_os_lock_port(ap);*/ 1626 } 1627 1628 /* 1629 * Completion function for ATA_PORT_T_DISK I/O 1630 */ 1631 static 1632 void 1633 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1634 { 1635 union ccb *ccb = xa->atascsi_private; 1636 struct ccb_hdr *ccbh = &ccb->ccb_h; 1637 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1638 1639 switch(xa->state) { 1640 case ATA_S_COMPLETE: 1641 ccbh->status = CAM_REQ_CMP; 1642 ccb->csio.scsi_status = SCSI_STATUS_OK; 1643 break; 1644 case ATA_S_ERROR: 1645 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1646 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1647 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1648 sili_ata_dummy_sense(&ccb->csio.sense_data); 1649 break; 1650 case ATA_S_TIMEOUT: 1651 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1652 ccbh->status = CAM_CMD_TIMEOUT; 1653 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1654 sili_ata_dummy_sense(&ccb->csio.sense_data); 1655 break; 1656 default: 1657 kprintf("%s: disk_rw: unknown state %d\n", 1658 ATANAME(ap, xa->at), xa->state); 1659 ccbh->status = CAM_REQ_CMP_ERR; 1660 break; 1661 } 1662 ccb->csio.resid = xa->resid; 1663 sili_ata_put_xfer(xa); 1664 /*sili_os_unlock_port(ap);*/ 1665 xpt_done(ccb); 1666 /*sili_os_lock_port(ap);*/ 1667 } 1668 1669 /* 1670 * Completion function for ATA_PORT_T_ATAPI I/O 1671 * 1672 * Sense data is returned in the rfis. 1673 */ 1674 static 1675 void 1676 sili_atapi_complete_cmd(struct ata_xfer *xa) 1677 { 1678 union ccb *ccb = xa->atascsi_private; 1679 struct ccb_hdr *ccbh = &ccb->ccb_h; 1680 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1681 scsi_cdb_t cdb; 1682 1683 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1684 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1685 1686 switch(xa->state) { 1687 case ATA_S_COMPLETE: 1688 ccbh->status = CAM_REQ_CMP; 1689 ccb->csio.scsi_status = SCSI_STATUS_OK; 1690 break; 1691 case ATA_S_ERROR: 1692 ccbh->status = CAM_SCSI_STATUS_ERROR; 1693 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1694 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1695 break; 1696 case ATA_S_TIMEOUT: 1697 kprintf("%s: cmd %d: timeout\n", 1698 PORTNAME(ap), cdb->generic.opcode); 1699 ccbh->status = CAM_CMD_TIMEOUT; 1700 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1701 sili_ata_dummy_sense(&ccb->csio.sense_data); 1702 break; 1703 default: 1704 kprintf("%s: cmd %d: unknown state %d\n", 1705 PORTNAME(ap), cdb->generic.opcode, xa->state); 1706 ccbh->status = CAM_REQ_CMP_ERR; 1707 break; 1708 } 1709 ccb->csio.resid = xa->resid; 1710 sili_ata_put_xfer(xa); 1711 /*sili_os_unlock_port(ap);*/ 1712 xpt_done(ccb); 1713 /*sili_os_lock_port(ap);*/ 1714 } 1715 1716 /* 1717 * Construct dummy sense data for errors on DISKs 1718 */ 1719 static 1720 void 1721 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1722 { 1723 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1724 sense_data->segment = 0; 1725 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1726 sense_data->info[0] = 0; 1727 sense_data->info[1] = 0; 1728 sense_data->info[2] = 0; 1729 sense_data->info[3] = 0; 1730 sense_data->extra_len = 0; 1731 } 1732 1733 /* 1734 * Construct atapi sense data for errors on ATAPI 1735 * 1736 * The ATAPI sense data is stored in the passed rfis and must be converted 1737 * to SCSI sense data. 1738 */ 1739 static 1740 void 1741 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1742 struct scsi_sense_data *sense_data) 1743 { 1744 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1745 sense_data->segment = 0; 1746 sense_data->flags = (rfis->error & 0xF0) >> 4; 1747 if (rfis->error & 0x04) 1748 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1749 if (rfis->error & 0x02) 1750 sense_data->flags |= SSD_EOM; 1751 if (rfis->error & 0x01) 1752 sense_data->flags |= SSD_ILI; 1753 sense_data->info[0] = 0; 1754 sense_data->info[1] = 0; 1755 sense_data->info[2] = 0; 1756 sense_data->info[3] = 0; 1757 sense_data->extra_len = 0; 1758 } 1759 1760 static 1761 void 1762 sili_strip_string(const char **basep, int *lenp) 1763 { 1764 const char *base = *basep; 1765 int len = *lenp; 1766 1767 while (len && (*base == 0 || *base == ' ')) { 1768 --len; 1769 ++base; 1770 } 1771 while (len && (base[len-1] == 0 || base[len-1] == ' ')) 1772 --len; 1773 *basep = base; 1774 *lenp = len; 1775 } 1776