1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * 35 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> 36 * 37 * Permission to use, copy, modify, and distribute this software for any 38 * purpose with or without fee is hereby granted, provided that the above 39 * copyright notice and this permission notice appear in all copies. 40 * 41 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 42 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 43 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 44 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 45 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 46 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 47 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 48 * 49 * $OpenBSD: atascsi.c,v 1.64 2009/02/16 21:19:06 miod Exp $ 50 * $DragonFly$ 51 */ 52 /* 53 * Implement each SATA port as its own SCSI bus on CAM. This way we can 54 * implement future port multiplier features as individual devices on the 55 * bus. 56 * 57 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest 58 * was written natively for DragonFly. 59 */ 60 61 #include "sili.h" 62 63 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb); 64 static void sili_xpt_poll(struct cam_sim *sim); 65 static void sili_xpt_scsi_disk_io(struct sili_port *ap, 66 struct ata_port *at, union ccb *ccb); 67 static void sili_xpt_scsi_atapi_io(struct sili_port *ap, 68 struct ata_port *at, union ccb *ccb); 69 static void sili_xpt_page_inquiry(struct sili_port *ap, 70 struct ata_port *at, union ccb *ccb); 71 72 static void sili_ata_complete_disk_rw(struct ata_xfer *xa); 73 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa); 74 static void sili_atapi_complete_cmd(struct ata_xfer *xa); 75 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data); 76 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 77 struct scsi_sense_data *sense_data); 78 79 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at); 80 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at); 81 static void sili_ata_dummy_done(struct ata_xfer *xa); 82 static void ata_fix_identify(struct ata_identify *id); 83 static int sili_set_xfer(struct sili_port *ap, struct ata_port *atx); 84 static void sili_cam_rescan(struct sili_port *ap); 85 static void sili_strip_string(const char **basep, int *lenp); 86 87 int 88 sili_cam_attach(struct sili_port *ap) 89 { 90 struct cam_devq *devq; 91 struct cam_sim *sim; 92 int error; 93 int unit; 94 95 /* 96 * We want at least one ccb to be available for error processing 97 * so don't let CAM use more then ncmds - 1. 98 */ 99 unit = device_get_unit(ap->ap_sc->sc_dev); 100 if (ap->ap_sc->sc_ncmds > 1) 101 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1); 102 else 103 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds); 104 if (devq == NULL) { 105 return (ENOMEM); 106 } 107 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili", 108 (void *)ap, unit, &sim_mplock, 1, 1, devq); 109 cam_simq_release(devq); 110 if (sim == NULL) { 111 return (ENOMEM); 112 } 113 ap->ap_sim = sim; 114 sili_os_unlock_port(ap); 115 error = xpt_bus_register(ap->ap_sim, ap->ap_num); 116 sili_os_lock_port(ap); 117 if (error != CAM_SUCCESS) { 118 sili_cam_detach(ap); 119 return (EINVAL); 120 } 121 ap->ap_flags |= AP_F_BUS_REGISTERED; 122 123 if (ap->ap_probe == ATA_PROBE_NEED_IDENT) 124 error = sili_cam_probe(ap, NULL); 125 else 126 error = 0; 127 if (error) { 128 sili_cam_detach(ap); 129 return (EIO); 130 } 131 ap->ap_flags |= AP_F_CAM_ATTACHED; 132 133 return(0); 134 } 135 136 /* 137 * The state of the port has changed. 138 * 139 * If at is NULL the physical port has changed state. 140 * If at is non-NULL a particular target behind a PM has changed state. 141 * 142 * If found is -1 the target state must be queued to a non-interrupt context. 143 * (only works with at == NULL). 144 * 145 * If found is 0 the target was removed. 146 * If found is 1 the target was inserted. 147 */ 148 void 149 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found) 150 { 151 struct cam_path *tmppath; 152 int status; 153 int target; 154 155 target = atx ? atx->at_target : CAM_TARGET_WILDCARD; 156 157 if (ap->ap_sim == NULL) 158 return; 159 if (found == CAM_TARGET_WILDCARD) { 160 status = xpt_create_path(&tmppath, NULL, 161 cam_sim_path(ap->ap_sim), 162 target, CAM_LUN_WILDCARD); 163 if (status != CAM_REQ_CMP) 164 return; 165 sili_cam_rescan(ap); 166 } else { 167 status = xpt_create_path(&tmppath, NULL, 168 cam_sim_path(ap->ap_sim), 169 target, 170 CAM_LUN_WILDCARD); 171 if (status != CAM_REQ_CMP) 172 return; 173 #if 0 174 /* 175 * This confuses CAM 176 */ 177 if (found) 178 xpt_async(AC_FOUND_DEVICE, tmppath, NULL); 179 else 180 xpt_async(AC_LOST_DEVICE, tmppath, NULL); 181 #endif 182 } 183 xpt_free_path(tmppath); 184 } 185 186 void 187 sili_cam_detach(struct sili_port *ap) 188 { 189 int error; 190 191 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0) 192 return; 193 get_mplock(); 194 if (ap->ap_sim) { 195 xpt_freeze_simq(ap->ap_sim, 1); 196 } 197 if (ap->ap_flags & AP_F_BUS_REGISTERED) { 198 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim)); 199 KKASSERT(error == CAM_REQ_CMP); 200 ap->ap_flags &= ~AP_F_BUS_REGISTERED; 201 } 202 if (ap->ap_sim) { 203 cam_sim_free(ap->ap_sim); 204 ap->ap_sim = NULL; 205 } 206 rel_mplock(); 207 ap->ap_flags &= ~AP_F_CAM_ATTACHED; 208 } 209 210 /* 211 * Once the SILI port has been attached we need to probe for a device or 212 * devices on the port and setup various options. 213 * 214 * If at is NULL we are probing the direct-attached device on the port, 215 * which may or may not be a port multiplier. 216 */ 217 int 218 sili_cam_probe(struct sili_port *ap, struct ata_port *atx) 219 { 220 struct ata_port *at; 221 struct ata_xfer *xa; 222 u_int64_t capacity; 223 u_int64_t capacity_bytes; 224 int model_len; 225 int firmware_len; 226 int serial_len; 227 int error; 228 int devncqdepth; 229 int i; 230 const char *model_id; 231 const char *firmware_id; 232 const char *serial_id; 233 const char *wcstr; 234 const char *rastr; 235 const char *scstr; 236 const char *type; 237 238 error = EIO; 239 240 /* 241 * Delayed CAM attachment for initial probe, sim may be NULL 242 */ 243 if (ap->ap_sim == NULL) 244 return(0); 245 246 /* 247 * A NULL atx indicates a probe of the directly connected device. 248 * A non-NULL atx indicates a device connected via a port multiplier. 249 * We need to preserve atx for calls to sili_ata_get_xfer(). 250 * 251 * at is always non-NULL. For directly connected devices we supply 252 * an (at) pointing to target 0. 253 */ 254 if (atx == NULL) { 255 at = ap->ap_ata; /* direct attached - device 0 */ 256 if (ap->ap_type == ATA_PORT_T_PM) { 257 kprintf("%s: Found Port Multiplier\n", 258 ATANAME(ap, atx)); 259 return (0); 260 } 261 at->at_type = ap->ap_type; 262 } else { 263 at = atx; 264 if (atx->at_type == ATA_PORT_T_PM) { 265 kprintf("%s: Bogus device, reducing port count to %d\n", 266 ATANAME(ap, atx), atx->at_target); 267 if (ap->ap_pmcount > atx->at_target) 268 ap->ap_pmcount = atx->at_target; 269 goto err; 270 } 271 } 272 if (ap->ap_type == ATA_PORT_T_NONE) 273 goto err; 274 if (at->at_type == ATA_PORT_T_NONE) 275 goto err; 276 277 /* 278 * Issue identify, saving the result 279 */ 280 xa = sili_ata_get_xfer(ap, atx); 281 xa->complete = sili_ata_dummy_done; 282 xa->data = &at->at_identify; 283 xa->datalen = sizeof(at->at_identify); 284 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 285 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 286 287 switch(at->at_type) { 288 case ATA_PORT_T_DISK: 289 xa->fis->command = ATA_C_IDENTIFY; 290 type = "DISK"; 291 break; 292 case ATA_PORT_T_ATAPI: 293 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 294 xa->flags |= ATA_F_AUTOSENSE; 295 type = "ATAPI"; 296 break; 297 default: 298 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 299 type = "UNKNOWN(ATAPI?)"; 300 break; 301 } 302 xa->fis->features = 0; 303 xa->fis->device = 0; 304 xa->timeout = 1000; 305 306 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 307 kprintf("%s: Detected %s device but unable to IDENTIFY\n", 308 ATANAME(ap, atx), type); 309 sili_ata_put_xfer(xa); 310 goto err; 311 } 312 sili_ata_put_xfer(xa); 313 314 ata_fix_identify(&at->at_identify); 315 316 /* 317 * Read capacity using SATA probe info. 318 */ 319 if (le16toh(at->at_identify.cmdset83) & 0x0400) { 320 /* LBA48 feature set supported */ 321 capacity = 0; 322 for (i = 3; i >= 0; --i) { 323 capacity <<= 16; 324 capacity += 325 le16toh(at->at_identify.addrsecxt[i]); 326 } 327 } else { 328 capacity = le16toh(at->at_identify.addrsec[1]); 329 capacity <<= 16; 330 capacity += le16toh(at->at_identify.addrsec[0]); 331 } 332 at->at_capacity = capacity; 333 if (atx == NULL) 334 ap->ap_probe = ATA_PROBE_GOOD; 335 336 capacity_bytes = capacity * 512; 337 338 /* 339 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated 340 * number of slots and limit the number of CAM ccb's to one less 341 * so we always have a slot available for recovery. 342 * 343 * NCQ is not used if ap_ncqdepth is 1 or the host controller does 344 * not support it, and in that case the driver can handle extra 345 * ccb's. 346 * 347 * NCQ is currently used only with direct-attached disks. It is 348 * not used with port multipliers or direct-attached ATAPI devices. 349 * 350 * Remember at least one extra CCB needs to be reserved for the 351 * error ccb. 352 */ 353 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) && 354 at->at_type == ATA_PORT_T_DISK && 355 (le16toh(at->at_identify.satacap) & (1 << 8))) { 356 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; 357 devncqdepth = at->at_ncqdepth; 358 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) 359 at->at_ncqdepth = ap->ap_sc->sc_ncmds; 360 if (at->at_ncqdepth > 1) { 361 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { 362 xa = sili_ata_get_xfer(ap, atx); 363 if (xa->tag < at->at_ncqdepth) { 364 xa->state = ATA_S_COMPLETE; 365 sili_ata_put_xfer(xa); 366 } 367 } 368 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { 369 cam_devq_resize(ap->ap_sim->devq, 370 at->at_ncqdepth - 1); 371 } 372 } 373 } else { 374 devncqdepth = 0; 375 } 376 377 /* 378 * Make the model string a bit more presentable 379 */ 380 for (model_len = 40; model_len; --model_len) { 381 if (at->at_identify.model[model_len-1] == ' ') 382 continue; 383 if (at->at_identify.model[model_len-1] == 0) 384 continue; 385 break; 386 } 387 388 model_len = sizeof(at->at_identify.model); 389 model_id = at->at_identify.model; 390 sili_strip_string(&model_id, &model_len); 391 392 firmware_len = sizeof(at->at_identify.firmware); 393 firmware_id = at->at_identify.firmware; 394 sili_strip_string(&firmware_id, &firmware_len); 395 396 serial_len = sizeof(at->at_identify.serial); 397 serial_id = at->at_identify.serial; 398 sili_strip_string(&serial_id, &serial_len); 399 400 /* 401 * Generate informatiive strings. 402 * 403 * NOTE: We do not automatically set write caching, lookahead, 404 * or the security state for ATAPI devices. 405 */ 406 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { 407 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) 408 wcstr = "enabled"; 409 else if (at->at_type == ATA_PORT_T_ATAPI) 410 wcstr = "disabled"; 411 else 412 wcstr = "enabling"; 413 } else { 414 wcstr = "notsupp"; 415 } 416 417 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { 418 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) 419 rastr = "enabled"; 420 else if (at->at_type == ATA_PORT_T_ATAPI) 421 rastr = "disabled"; 422 else 423 rastr = "enabling"; 424 } else { 425 rastr = "notsupp"; 426 } 427 428 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { 429 if (at->at_identify.securestatus & ATA_SECURE_FROZEN) 430 scstr = "frozen"; 431 else if (at->at_type == ATA_PORT_T_ATAPI) 432 scstr = "unfrozen"; 433 else if (SiliNoFeatures & (1 << ap->ap_num)) 434 scstr = "<disabled>"; 435 else 436 scstr = "freezing"; 437 } else { 438 scstr = "notsupp"; 439 } 440 441 kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n" 442 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " 443 "capacity=%lld.%02dMB\n", 444 445 ATANAME(ap, atx), 446 type, 447 model_len, model_len, model_id, 448 firmware_len, firmware_len, firmware_id, 449 serial_len, serial_len, serial_id, 450 451 ATANAME(ap, atx), 452 devncqdepth, ap->ap_sc->sc_ncmds, 453 at->at_identify.satacap, 454 at->at_identify.satafsup, 455 (at->at_ncqdepth > 1 ? "YES" : "NO"), 456 (long long)capacity_bytes / (1024 * 1024), 457 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) 458 ); 459 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", 460 ATANAME(ap, atx), 461 at->at_identify.features85, 462 at->at_identify.features86, 463 at->at_identify.features87, 464 wcstr, 465 rastr, 466 scstr 467 ); 468 469 /* 470 * Additional type-specific probing 471 */ 472 switch(at->at_type) { 473 case ATA_PORT_T_DISK: 474 error = sili_cam_probe_disk(ap, atx); 475 break; 476 case ATA_PORT_T_ATAPI: 477 error = sili_cam_probe_atapi(ap, atx); 478 break; 479 default: 480 error = EIO; 481 break; 482 } 483 err: 484 if (error) { 485 at->at_probe = ATA_PROBE_FAILED; 486 if (atx == NULL) 487 ap->ap_probe = at->at_probe; 488 } else { 489 at->at_probe = ATA_PROBE_GOOD; 490 if (atx == NULL) 491 ap->ap_probe = at->at_probe; 492 } 493 return (error); 494 } 495 496 /* 497 * DISK-specific probe after initial ident 498 */ 499 static int 500 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx) 501 { 502 struct ata_port *at; 503 struct ata_xfer *xa; 504 505 at = atx ? atx : ap->ap_ata; 506 507 /* 508 * Set dummy xfer mode 509 */ 510 sili_set_xfer(ap, atx); 511 512 /* 513 * Enable write cache if supported 514 * 515 * NOTE: "WD My Book" external disk devices have a very poor 516 * daughter board between the the ESATA and the HD. Sending 517 * any ATA_C_SET_FEATURES commands will break the hardware port 518 * with a fatal protocol error. However, this device also 519 * indicates that WRITECACHE is already on and READAHEAD is 520 * not supported so we avoid the issue. 521 */ 522 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) && 523 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) { 524 xa = sili_ata_get_xfer(ap, atx); 525 xa->complete = sili_ata_dummy_done; 526 xa->fis->command = ATA_C_SET_FEATURES; 527 /*xa->fis->features = ATA_SF_WRITECACHE_EN;*/ 528 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 529 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 530 xa->fis->device = 0; 531 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 532 xa->timeout = 1000; 533 xa->datalen = 0; 534 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 535 at->at_features |= ATA_PORT_F_WCACHE; 536 else 537 kprintf("%s: Unable to enable write-caching\n", 538 ATANAME(ap, atx)); 539 sili_ata_put_xfer(xa); 540 } 541 542 /* 543 * Enable readahead if supported 544 */ 545 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) && 546 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) { 547 xa = sili_ata_get_xfer(ap, atx); 548 xa->complete = sili_ata_dummy_done; 549 xa->fis->command = ATA_C_SET_FEATURES; 550 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 551 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 552 xa->fis->device = 0; 553 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 554 xa->timeout = 1000; 555 xa->datalen = 0; 556 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 557 at->at_features |= ATA_PORT_F_RAHEAD; 558 else 559 kprintf("%s: Unable to enable read-ahead\n", 560 ATANAME(ap, atx)); 561 sili_ata_put_xfer(xa); 562 } 563 564 /* 565 * FREEZE LOCK the device so malicious users can't lock it on us. 566 * As there is no harm in issuing this to devices that don't 567 * support the security feature set we just send it, and don't bother 568 * checking if the device sends a command abort to tell us it doesn't 569 * support it 570 */ 571 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) && 572 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 && 573 (SiliNoFeatures & (1 << ap->ap_num)) == 0) { 574 xa = sili_ata_get_xfer(ap, atx); 575 xa->complete = sili_ata_dummy_done; 576 xa->fis->command = ATA_C_SEC_FREEZE_LOCK; 577 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 578 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 579 xa->timeout = 1000; 580 xa->datalen = 0; 581 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 582 at->at_features |= ATA_PORT_F_FRZLCK; 583 else 584 kprintf("%s: Unable to set security freeze\n", 585 ATANAME(ap, atx)); 586 sili_ata_put_xfer(xa); 587 } 588 589 return (0); 590 } 591 592 /* 593 * ATAPI-specific probe after initial ident 594 */ 595 static int 596 sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *atx) 597 { 598 sili_set_xfer(ap, atx); 599 return(0); 600 } 601 602 /* 603 * Setting the transfer mode is irrelevant for the SATA transport 604 * but some (atapi) devices seem to need it anyway. In addition 605 * if we are running through a SATA->PATA converter for some reason 606 * beyond my comprehension we might have to set the mode. 607 * 608 * We only support DMA modes for SATA attached devices, so don't bother 609 * with legacy modes. 610 */ 611 static int 612 sili_set_xfer(struct sili_port *ap, struct ata_port *atx) 613 { 614 struct ata_port *at; 615 struct ata_xfer *xa; 616 u_int16_t mode; 617 u_int16_t mask; 618 619 at = atx ? atx : ap->ap_ata; 620 621 /* 622 * Figure out the supported UDMA mode. Ignore other legacy modes. 623 */ 624 mask = le16toh(at->at_identify.ultradma); 625 if ((mask & 0xFF) == 0 || mask == 0xFFFF) 626 return(0); 627 mask &= 0xFF; 628 mode = 0x4F; 629 while ((mask & 0x8000) == 0) { 630 mask <<= 1; 631 --mode; 632 } 633 634 /* 635 * SATA atapi devices often still report a dma mode, even though 636 * it is irrelevant for SATA transport. It is also possible that 637 * we are running through a SATA->PATA converter and seeing the 638 * PATA dma mode. 639 * 640 * In this case the device may require a (dummy) SETXFER to be 641 * sent before it will work properly. 642 */ 643 xa = sili_ata_get_xfer(ap, atx); 644 xa->complete = sili_ata_dummy_done; 645 xa->fis->command = ATA_C_SET_FEATURES; 646 xa->fis->features = ATA_SF_SETXFER; 647 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 648 xa->fis->sector_count = mode; 649 xa->flags = ATA_F_PIO | ATA_F_POLL; 650 xa->timeout = 1000; 651 xa->datalen = 0; 652 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 653 kprintf("%s: Unable to set dummy xfer mode \n", 654 ATANAME(ap, atx)); 655 } else if (bootverbose) { 656 kprintf("%s: Set dummy xfer mode to %02x\n", 657 ATANAME(ap, atx), mode); 658 } 659 sili_ata_put_xfer(xa); 660 return(0); 661 } 662 663 /* 664 * Fix byte ordering so buffers can be accessed as 665 * strings. 666 */ 667 static void 668 ata_fix_identify(struct ata_identify *id) 669 { 670 u_int16_t *swap; 671 int i; 672 673 swap = (u_int16_t *)id->serial; 674 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++) 675 swap[i] = bswap16(swap[i]); 676 677 swap = (u_int16_t *)id->firmware; 678 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++) 679 swap[i] = bswap16(swap[i]); 680 681 swap = (u_int16_t *)id->model; 682 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++) 683 swap[i] = bswap16(swap[i]); 684 } 685 686 /* 687 * Dummy done callback for xa. 688 */ 689 static void 690 sili_ata_dummy_done(struct ata_xfer *xa) 691 { 692 } 693 694 /* 695 * Use an engineering request to initiate a target scan for devices 696 * behind a port multiplier. 697 * 698 * An asynchronous bus scan is used to avoid reentrancy issues. 699 */ 700 static void 701 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 702 { 703 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 704 705 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) { 706 ap->ap_flags &= ~AP_F_SCAN_RUNNING; 707 if (ap->ap_flags & AP_F_SCAN_REQUESTED) { 708 ap->ap_flags &= ~AP_F_SCAN_REQUESTED; 709 sili_cam_rescan(ap); 710 } 711 ap->ap_flags |= AP_F_SCAN_COMPLETED; 712 wakeup(&ap->ap_flags); 713 } 714 xpt_free_ccb(ccb); 715 } 716 717 static void 718 sili_cam_rescan(struct sili_port *ap) 719 { 720 struct cam_path *path; 721 union ccb *ccb; 722 int status; 723 int i; 724 725 if (ap->ap_flags & AP_F_SCAN_RUNNING) { 726 ap->ap_flags |= AP_F_SCAN_REQUESTED; 727 return; 728 } 729 ap->ap_flags |= AP_F_SCAN_RUNNING; 730 for (i = 0; i < SILI_MAX_PMPORTS; ++i) { 731 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN; 732 } 733 734 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 735 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 736 if (status != CAM_REQ_CMP) 737 return; 738 739 ccb = xpt_alloc_ccb(); 740 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 741 ccb->ccb_h.func_code = XPT_ENG_EXEC; 742 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 743 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 744 ccb->crcn.flags = CAM_FLAG_NONE; 745 xpt_action_async(ccb); 746 } 747 748 static void 749 sili_xpt_rescan(struct sili_port *ap) 750 { 751 struct cam_path *path; 752 union ccb *ccb; 753 int status; 754 755 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 756 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 757 if (status != CAM_REQ_CMP) 758 return; 759 760 ccb = xpt_alloc_ccb(); 761 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 762 ccb->ccb_h.func_code = XPT_SCAN_BUS; 763 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 764 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 765 ccb->crcn.flags = CAM_FLAG_NONE; 766 xpt_action_async(ccb); 767 } 768 769 /* 770 * Action function - dispatch command 771 */ 772 static 773 void 774 sili_xpt_action(struct cam_sim *sim, union ccb *ccb) 775 { 776 struct sili_port *ap; 777 struct ata_port *at, *atx; 778 struct ccb_hdr *ccbh; 779 int unit; 780 781 /* XXX lock */ 782 ap = cam_sim_softc(sim); 783 at = ap->ap_ata; 784 atx = NULL; 785 KKASSERT(ap != NULL); 786 ccbh = &ccb->ccb_h; 787 unit = cam_sim_unit(sim); 788 789 /* 790 * Early failure checks. These checks do not apply to XPT_PATH_INQ, 791 * otherwise the bus rescan will not remove the dead devices when 792 * unplugging a PM. 793 * 794 * For non-wildcards we have one target (0) and one lun (0), 795 * unless we have a port multiplier. 796 * 797 * A wildcard target indicates only the general bus is being 798 * probed. 799 * 800 * Calculate at and atx. at is always non-NULL. atx is only 801 * non-NULL for direct-attached devices. It will be NULL for 802 * devices behind a port multiplier. 803 * 804 * XXX What do we do with a LUN wildcard? 805 */ 806 if (ccbh->target_id != CAM_TARGET_WILDCARD && 807 ccbh->func_code != XPT_PATH_INQ) { 808 if (ap->ap_type == ATA_PORT_T_NONE) { 809 ccbh->status = CAM_DEV_NOT_THERE; 810 xpt_done(ccb); 811 return; 812 } 813 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) { 814 ccbh->status = CAM_DEV_NOT_THERE; 815 xpt_done(ccb); 816 return; 817 } 818 at += ccbh->target_id; 819 if (ap->ap_type == ATA_PORT_T_PM) 820 atx = at; 821 822 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) { 823 ccbh->status = CAM_DEV_NOT_THERE; 824 xpt_done(ccb); 825 return; 826 } 827 } 828 829 /* 830 * Switch on the meta XPT command 831 */ 832 switch(ccbh->func_code) { 833 case XPT_ENG_EXEC: 834 /* 835 * This routine is called after a port multiplier has been 836 * probed. 837 */ 838 ccbh->status = CAM_REQ_CMP; 839 sili_os_lock_port(ap); 840 sili_port_state_machine(ap, 0); 841 sili_os_unlock_port(ap); 842 xpt_done(ccb); 843 sili_xpt_rescan(ap); 844 break; 845 case XPT_PATH_INQ: 846 /* 847 * This command always succeeds, otherwise the bus scan 848 * will not detach dead devices. 849 */ 850 ccb->cpi.version_num = 1; 851 ccb->cpi.hba_inquiry = 0; 852 ccb->cpi.target_sprt = 0; 853 ccb->cpi.hba_misc = PIM_SEQSCAN; 854 ccb->cpi.hba_eng_cnt = 0; 855 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags)); 856 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1; 857 ccb->cpi.max_lun = 0; 858 ccb->cpi.async_flags = 0; 859 ccb->cpi.hpath_id = 0; 860 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1; 861 ccb->cpi.unit_number = cam_sim_unit(sim); 862 ccb->cpi.bus_id = cam_sim_bus(sim); 863 ccb->cpi.base_transfer_speed = 150000; 864 ccb->cpi.transport = XPORT_SATA; 865 ccb->cpi.transport_version = 1; 866 ccb->cpi.protocol = PROTO_SCSI; 867 ccb->cpi.protocol_version = SCSI_REV_2; 868 869 ccbh->status = CAM_REQ_CMP; 870 if (ccbh->target_id == CAM_TARGET_WILDCARD) { 871 sili_os_lock_port(ap); 872 sili_port_state_machine(ap, 0); 873 sili_os_unlock_port(ap); 874 } else { 875 switch(sili_pread(ap, SILI_PREG_SSTS) & 876 SILI_PREG_SSTS_SPD) { 877 case SILI_PREG_SSTS_SPD_GEN1: 878 ccb->cpi.base_transfer_speed = 150000; 879 break; 880 case SILI_PREG_SSTS_SPD_GEN2: 881 ccb->cpi.base_transfer_speed = 300000; 882 break; 883 default: 884 /* unknown */ 885 ccb->cpi.base_transfer_speed = 1000; 886 break; 887 } 888 #if 0 889 if (ap->ap_type == ATA_PORT_T_NONE) 890 ccbh->status = CAM_DEV_NOT_THERE; 891 #endif 892 } 893 xpt_done(ccb); 894 break; 895 case XPT_RESET_DEV: 896 sili_os_lock_port(ap); 897 if (ap->ap_type == ATA_PORT_T_NONE) { 898 ccbh->status = CAM_DEV_NOT_THERE; 899 } else { 900 sili_port_reset(ap, atx, 0); 901 ccbh->status = CAM_REQ_CMP; 902 } 903 sili_os_unlock_port(ap); 904 xpt_done(ccb); 905 break; 906 case XPT_RESET_BUS: 907 sili_os_lock_port(ap); 908 sili_port_reset(ap, NULL, 1); 909 sili_os_unlock_port(ap); 910 ccbh->status = CAM_REQ_CMP; 911 xpt_done(ccb); 912 break; 913 case XPT_SET_TRAN_SETTINGS: 914 ccbh->status = CAM_FUNC_NOTAVAIL; 915 xpt_done(ccb); 916 break; 917 case XPT_GET_TRAN_SETTINGS: 918 ccb->cts.protocol = PROTO_SCSI; 919 ccb->cts.protocol_version = SCSI_REV_2; 920 ccb->cts.transport = XPORT_SATA; 921 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED; 922 ccb->cts.proto_specific.valid = 0; 923 ccb->cts.xport_specific.valid = 0; 924 ccbh->status = CAM_REQ_CMP; 925 xpt_done(ccb); 926 break; 927 case XPT_CALC_GEOMETRY: 928 cam_calc_geometry(&ccb->ccg, 1); 929 xpt_done(ccb); 930 break; 931 case XPT_SCSI_IO: 932 /* 933 * Our parallel startup code might have only probed through 934 * to the IDENT, so do the last step if necessary. 935 */ 936 if (at->at_probe == ATA_PROBE_NEED_IDENT) 937 sili_cam_probe(ap, atx); 938 if (at->at_probe != ATA_PROBE_GOOD) { 939 ccbh->status = CAM_DEV_NOT_THERE; 940 xpt_done(ccb); 941 break; 942 } 943 switch(at->at_type) { 944 case ATA_PORT_T_DISK: 945 sili_xpt_scsi_disk_io(ap, atx, ccb); 946 break; 947 case ATA_PORT_T_ATAPI: 948 sili_xpt_scsi_atapi_io(ap, atx, ccb); 949 break; 950 default: 951 ccbh->status = CAM_REQ_INVALID; 952 xpt_done(ccb); 953 break; 954 } 955 break; 956 default: 957 ccbh->status = CAM_REQ_INVALID; 958 xpt_done(ccb); 959 break; 960 } 961 } 962 963 /* 964 * Poll function. 965 * 966 * Generally this function gets called heavily when interrupts might be 967 * non-operational, during a halt/reboot or panic. 968 */ 969 static 970 void 971 sili_xpt_poll(struct cam_sim *sim) 972 { 973 struct sili_port *ap; 974 975 ap = cam_sim_softc(sim); 976 crit_enter(); 977 sili_os_lock_port(ap); 978 sili_port_intr(ap, 1); 979 sili_os_unlock_port(ap); 980 crit_exit(); 981 } 982 983 /* 984 * Convert the SCSI command in ccb to an ata_xfer command in xa 985 * for ATA_PORT_T_DISK operations. Set the completion function 986 * to convert the response back, then dispatch to the OpenBSD SILI 987 * layer. 988 * 989 * SILI DISK commands only support a limited command set, and we 990 * fake additional commands to make it play nice with the CAM subsystem. 991 */ 992 static 993 void 994 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx, 995 union ccb *ccb) 996 { 997 struct ccb_hdr *ccbh; 998 struct ccb_scsiio *csio; 999 struct ata_xfer *xa; 1000 struct ata_port *at; 1001 struct ata_fis_h2d *fis; 1002 struct ata_pass_12 *atp12; 1003 struct ata_pass_16 *atp16; 1004 scsi_cdb_t cdb; 1005 union scsi_data *rdata; 1006 int rdata_len; 1007 u_int64_t capacity; 1008 u_int64_t lba; 1009 u_int32_t count; 1010 1011 ccbh = &ccb->csio.ccb_h; 1012 csio = &ccb->csio; 1013 at = atx ? atx : &ap->ap_ata[0]; 1014 1015 /* 1016 * XXX not passing NULL at for direct attach! 1017 */ 1018 xa = sili_ata_get_xfer(ap, atx); 1019 rdata = (void *)csio->data_ptr; 1020 rdata_len = csio->dxfer_len; 1021 1022 /* 1023 * Build the FIS or process the csio to completion. 1024 */ 1025 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1026 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1027 1028 switch(cdb->generic.opcode) { 1029 case REQUEST_SENSE: 1030 /* 1031 * Auto-sense everything, so explicit sense requests 1032 * return no-sense. 1033 */ 1034 ccbh->status = CAM_SCSI_STATUS_ERROR; 1035 break; 1036 case INQUIRY: 1037 /* 1038 * Inquiry supported features 1039 * 1040 * [opcode, byte2, page_code, length, control] 1041 */ 1042 if (cdb->inquiry.byte2 & SI_EVPD) { 1043 sili_xpt_page_inquiry(ap, at, ccb); 1044 } else { 1045 bzero(rdata, rdata_len); 1046 if (rdata_len < SHORT_INQUIRY_LENGTH) { 1047 ccbh->status = CAM_CCB_LEN_ERR; 1048 break; 1049 } 1050 if (rdata_len > sizeof(rdata->inquiry_data)) 1051 rdata_len = sizeof(rdata->inquiry_data); 1052 rdata->inquiry_data.device = T_DIRECT; 1053 rdata->inquiry_data.version = SCSI_REV_SPC2; 1054 rdata->inquiry_data.response_format = 2; 1055 rdata->inquiry_data.additional_length = 32; 1056 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 1057 bcopy(at->at_identify.model, 1058 rdata->inquiry_data.product, 1059 sizeof(rdata->inquiry_data.product)); 1060 bcopy(at->at_identify.firmware, 1061 rdata->inquiry_data.revision, 1062 sizeof(rdata->inquiry_data.revision)); 1063 ccbh->status = CAM_REQ_CMP; 1064 } 1065 break; 1066 case READ_CAPACITY_16: 1067 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 1068 ccbh->status = CAM_REQ_INVALID; 1069 break; 1070 } 1071 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1072 ccbh->status = CAM_CCB_LEN_ERR; 1073 break; 1074 } 1075 /* fall through */ 1076 case READ_CAPACITY: 1077 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1078 ccbh->status = CAM_CCB_LEN_ERR; 1079 break; 1080 } 1081 1082 capacity = at->at_capacity; 1083 1084 bzero(rdata, rdata_len); 1085 if (cdb->generic.opcode == READ_CAPACITY) { 1086 rdata_len = sizeof(rdata->read_capacity_data); 1087 if (capacity > 0xFFFFFFFFU) 1088 capacity = 0xFFFFFFFFU; 1089 bzero(&rdata->read_capacity_data, rdata_len); 1090 scsi_ulto4b((u_int32_t)capacity - 1, 1091 rdata->read_capacity_data.addr); 1092 scsi_ulto4b(512, rdata->read_capacity_data.length); 1093 } else { 1094 rdata_len = sizeof(rdata->read_capacity_data_16); 1095 bzero(&rdata->read_capacity_data_16, rdata_len); 1096 scsi_u64to8b(capacity - 1, 1097 rdata->read_capacity_data_16.addr); 1098 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1099 } 1100 ccbh->status = CAM_REQ_CMP; 1101 break; 1102 case SYNCHRONIZE_CACHE: 1103 /* 1104 * Synchronize cache. Specification says this can take 1105 * greater then 30 seconds so give it at least 45. 1106 */ 1107 fis = xa->fis; 1108 fis->flags = ATA_H2D_FLAGS_CMD; 1109 fis->command = ATA_C_FLUSH_CACHE; 1110 fis->device = 0; 1111 if (xa->timeout < 45000) 1112 xa->timeout = 45000; 1113 xa->datalen = 0; 1114 xa->flags = ATA_F_READ; 1115 xa->complete = sili_ata_complete_disk_synchronize_cache; 1116 break; 1117 case TEST_UNIT_READY: 1118 case START_STOP_UNIT: 1119 case PREVENT_ALLOW: 1120 /* 1121 * Just silently return success 1122 */ 1123 ccbh->status = CAM_REQ_CMP; 1124 rdata_len = 0; 1125 break; 1126 case ATA_PASS_12: 1127 atp12 = &cdb->ata_pass_12; 1128 fis = xa->fis; 1129 /* 1130 * Figure out the flags to be used, depending on the 1131 * direction of the CAM request. 1132 */ 1133 switch (ccbh->flags & CAM_DIR_MASK) { 1134 case CAM_DIR_IN: 1135 xa->flags = ATA_F_READ; 1136 break; 1137 case CAM_DIR_OUT: 1138 xa->flags = ATA_F_WRITE; 1139 break; 1140 default: 1141 xa->flags = 0; 1142 } 1143 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1144 xa->data = csio->data_ptr; 1145 xa->datalen = csio->dxfer_len; 1146 xa->complete = sili_ata_complete_disk_rw; 1147 xa->timeout = ccbh->timeout; 1148 1149 /* 1150 * Populate the fis from the information we received through CAM 1151 * ATA passthrough. 1152 */ 1153 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */ 1154 fis->features = atp12->features; 1155 fis->sector_count = atp12->sector_count; 1156 fis->lba_low = atp12->lba_low; 1157 fis->lba_mid = atp12->lba_mid; 1158 fis->lba_high = atp12->lba_high; 1159 fis->device = atp12->device; /* maybe always 0? */ 1160 fis->command = atp12->command; 1161 fis->control = atp12->control; 1162 1163 /* 1164 * Mark as in progress so it is sent to the device. 1165 */ 1166 ccbh->status = CAM_REQ_INPROG; 1167 break; 1168 case ATA_PASS_16: 1169 atp16 = &cdb->ata_pass_16; 1170 fis = xa->fis; 1171 /* 1172 * Figure out the flags to be used, depending on the direction of the 1173 * CAM request. 1174 */ 1175 switch (ccbh->flags & CAM_DIR_MASK) { 1176 case CAM_DIR_IN: 1177 xa->flags = ATA_F_READ; 1178 break; 1179 case CAM_DIR_OUT: 1180 xa->flags = ATA_F_WRITE; 1181 break; 1182 default: 1183 xa->flags = 0; 1184 } 1185 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1186 xa->data = csio->data_ptr; 1187 xa->datalen = csio->dxfer_len; 1188 xa->complete = sili_ata_complete_disk_rw; 1189 xa->timeout = ccbh->timeout; 1190 1191 /* 1192 * Populate the fis from the information we received through CAM 1193 * ATA passthrough. 1194 */ 1195 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */ 1196 fis->features = atp16->features; 1197 fis->features_exp = atp16->features_ext; 1198 fis->sector_count = atp16->sector_count; 1199 fis->sector_count_exp = atp16->sector_count_ext; 1200 fis->lba_low = atp16->lba_low; 1201 fis->lba_low_exp = atp16->lba_low_ext; 1202 fis->lba_mid = atp16->lba_mid; 1203 fis->lba_mid_exp = atp16->lba_mid_ext; 1204 fis->lba_high = atp16->lba_high; 1205 fis->lba_mid_exp = atp16->lba_mid_ext; 1206 fis->device = atp16->device; /* maybe always 0? */ 1207 fis->command = atp16->command; 1208 1209 /* 1210 * Mark as in progress so it is sent to the device. 1211 */ 1212 ccbh->status = CAM_REQ_INPROG; 1213 break; 1214 default: 1215 switch(cdb->generic.opcode) { 1216 case READ_6: 1217 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1218 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1219 xa->flags = ATA_F_READ; 1220 break; 1221 case READ_10: 1222 lba = scsi_4btoul(cdb->rw_10.addr); 1223 count = scsi_2btoul(cdb->rw_10.length); 1224 xa->flags = ATA_F_READ; 1225 break; 1226 case READ_12: 1227 lba = scsi_4btoul(cdb->rw_12.addr); 1228 count = scsi_4btoul(cdb->rw_12.length); 1229 xa->flags = ATA_F_READ; 1230 break; 1231 case READ_16: 1232 lba = scsi_8btou64(cdb->rw_16.addr); 1233 count = scsi_4btoul(cdb->rw_16.length); 1234 xa->flags = ATA_F_READ; 1235 break; 1236 case WRITE_6: 1237 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1238 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1239 xa->flags = ATA_F_WRITE; 1240 break; 1241 case WRITE_10: 1242 lba = scsi_4btoul(cdb->rw_10.addr); 1243 count = scsi_2btoul(cdb->rw_10.length); 1244 xa->flags = ATA_F_WRITE; 1245 break; 1246 case WRITE_12: 1247 lba = scsi_4btoul(cdb->rw_12.addr); 1248 count = scsi_4btoul(cdb->rw_12.length); 1249 xa->flags = ATA_F_WRITE; 1250 break; 1251 case WRITE_16: 1252 lba = scsi_8btou64(cdb->rw_16.addr); 1253 count = scsi_4btoul(cdb->rw_16.length); 1254 xa->flags = ATA_F_WRITE; 1255 break; 1256 default: 1257 ccbh->status = CAM_REQ_INVALID; 1258 break; 1259 } 1260 if (ccbh->status != CAM_REQ_INPROG) 1261 break; 1262 1263 fis = xa->fis; 1264 fis->flags = ATA_H2D_FLAGS_CMD; 1265 fis->lba_low = (u_int8_t)lba; 1266 fis->lba_mid = (u_int8_t)(lba >> 8); 1267 fis->lba_high = (u_int8_t)(lba >> 16); 1268 fis->device = ATA_H2D_DEVICE_LBA; 1269 1270 /* 1271 * NCQ only for direct-attached disks, do not currently 1272 * try to use NCQ with port multipliers. 1273 * 1274 * XXX fixme SII chip can do NCQ w/ port multipliers. 1275 */ 1276 if (at->at_ncqdepth > 1 && 1277 at->at_type == ATA_PORT_T_DISK && 1278 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1279 (ccbh->flags & CAM_POLLED) == 0) { 1280 /* 1281 * Use NCQ - always uses 48 bit addressing 1282 */ 1283 xa->flags |= ATA_F_NCQ; 1284 fis->command = (xa->flags & ATA_F_WRITE) ? 1285 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1286 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1287 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1288 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1289 fis->sector_count = xa->tag << 3; 1290 fis->features = (u_int8_t)count; 1291 fis->features_exp = (u_int8_t)(count >> 8); 1292 } else if (count > 0x100 || lba > 0x0FFFFFFFU) { 1293 /* 1294 * Use LBA48 1295 */ 1296 fis->command = (xa->flags & ATA_F_WRITE) ? 1297 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1298 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1299 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1300 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1301 fis->sector_count = (u_int8_t)count; 1302 fis->sector_count_exp = (u_int8_t)(count >> 8); 1303 } else { 1304 /* 1305 * Use LBA 1306 * 1307 * NOTE: 256 sectors is supported, stored as 0. 1308 */ 1309 fis->command = (xa->flags & ATA_F_WRITE) ? 1310 ATA_C_WRITEDMA : ATA_C_READDMA; 1311 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1312 fis->sector_count = (u_int8_t)count; 1313 } 1314 1315 xa->data = csio->data_ptr; 1316 xa->datalen = csio->dxfer_len; 1317 xa->complete = sili_ata_complete_disk_rw; 1318 xa->timeout = ccbh->timeout; /* milliseconds */ 1319 if (ccbh->flags & CAM_POLLED) 1320 xa->flags |= ATA_F_POLL; 1321 break; 1322 } 1323 1324 /* 1325 * If the request is still in progress the xa and FIS have 1326 * been set up (except for the PM target), and must be dispatched. 1327 * Otherwise the request was completed. 1328 */ 1329 if (ccbh->status == CAM_REQ_INPROG) { 1330 KKASSERT(xa->complete != NULL); 1331 xa->atascsi_private = ccb; 1332 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1333 sili_os_lock_port(ap); 1334 xa->fis->flags |= at->at_target; 1335 sili_ata_cmd(xa); 1336 sili_os_unlock_port(ap); 1337 } else { 1338 sili_ata_put_xfer(xa); 1339 xpt_done(ccb); 1340 } 1341 } 1342 1343 /* 1344 * Convert the SCSI command in ccb to an ata_xfer command in xa 1345 * for ATA_PORT_T_ATAPI operations. Set the completion function 1346 * to convert the response back, then dispatch to the OpenBSD SILI 1347 * layer. 1348 */ 1349 static 1350 void 1351 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1352 union ccb *ccb) 1353 { 1354 struct ccb_hdr *ccbh; 1355 struct ccb_scsiio *csio; 1356 struct ata_xfer *xa; 1357 struct ata_fis_h2d *fis; 1358 scsi_cdb_t cdbs; 1359 scsi_cdb_t cdbd; 1360 int flags; 1361 struct ata_port *at; 1362 1363 ccbh = &ccb->csio.ccb_h; 1364 csio = &ccb->csio; 1365 at = atx ? atx : &ap->ap_ata[0]; 1366 1367 switch (ccbh->flags & CAM_DIR_MASK) { 1368 case CAM_DIR_IN: 1369 flags = ATA_F_PACKET | ATA_F_READ; 1370 break; 1371 case CAM_DIR_OUT: 1372 flags = ATA_F_PACKET | ATA_F_WRITE; 1373 break; 1374 case CAM_DIR_NONE: 1375 flags = ATA_F_PACKET; 1376 break; 1377 default: 1378 ccbh->status = CAM_REQ_INVALID; 1379 xpt_done(ccb); 1380 return; 1381 /* NOT REACHED */ 1382 } 1383 1384 /* 1385 * Special handling to get the rfis back into host memory while 1386 * still allowing the chip to run commands in parallel to 1387 * ATAPI devices behind a PM. 1388 */ 1389 flags |= ATA_F_AUTOSENSE; 1390 1391 /* 1392 * The command has to fit in the packet command buffer. 1393 */ 1394 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1395 ccbh->status = CAM_CCB_LEN_ERR; 1396 xpt_done(ccb); 1397 return; 1398 } 1399 1400 /* 1401 * Initialize the XA and FIS. It is unclear how much of 1402 * this has to mimic the equivalent ATA command. 1403 * 1404 * XXX not passing NULL at for direct attach! 1405 */ 1406 xa = sili_ata_get_xfer(ap, atx); 1407 fis = xa->fis; 1408 1409 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1410 fis->command = ATA_C_PACKET; 1411 fis->device = ATA_H2D_DEVICE_LBA; 1412 fis->sector_count = xa->tag << 3; 1413 if (flags & (ATA_F_READ | ATA_F_WRITE)) { 1414 if (flags & ATA_F_WRITE) { 1415 fis->features = ATA_H2D_FEATURES_DMA | 1416 ATA_H2D_FEATURES_DIR_WRITE; 1417 } else { 1418 fis->features = ATA_H2D_FEATURES_DMA | 1419 ATA_H2D_FEATURES_DIR_READ; 1420 } 1421 } else { 1422 fis->lba_mid = 0; 1423 fis->lba_high = 0; 1424 } 1425 fis->control = ATA_FIS_CONTROL_4BIT; 1426 1427 xa->flags = flags; 1428 xa->data = csio->data_ptr; 1429 xa->datalen = csio->dxfer_len; 1430 xa->timeout = ccbh->timeout; /* milliseconds */ 1431 1432 if (ccbh->flags & CAM_POLLED) 1433 xa->flags |= ATA_F_POLL; 1434 1435 /* 1436 * Copy the cdb to the packetcmd buffer in the FIS using a 1437 * convenient pointer in the xa. 1438 */ 1439 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1440 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1441 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1442 1443 #if 0 1444 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1445 cdbs->generic.opcode, 1446 csio->cdb_len, csio->dxfer_len); 1447 #endif 1448 1449 /* 1450 * Some ATAPI commands do not actually follow the SCSI standard. 1451 */ 1452 cdbd = (void *)xa->packetcmd; 1453 1454 switch(cdbd->generic.opcode) { 1455 case REQUEST_SENSE: 1456 /* 1457 * Force SENSE requests to the ATAPI sense length. 1458 * 1459 * It is unclear if this is needed or not. 1460 */ 1461 if (cdbd->sense.length == SSD_FULL_SIZE) { 1462 kprintf("%s: Shortening sense request\n", 1463 PORTNAME(ap)); 1464 cdbd->sense.length = offsetof(struct scsi_sense_data, 1465 extra_bytes[0]); 1466 } 1467 break; 1468 case INQUIRY: 1469 /* 1470 * Some ATAPI devices can't handle long inquiry lengths, 1471 * don't ask me why. Truncate the inquiry length. 1472 */ 1473 if (cdbd->inquiry.page_code == 0 && 1474 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1475 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1476 } 1477 break; 1478 case READ_6: 1479 case WRITE_6: 1480 /* 1481 * Convert *_6 to *_10 commands. Most ATAPI devices 1482 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1483 */ 1484 cdbd->rw_10.opcode |= 0x20; 1485 cdbd->rw_10.byte2 = 0; 1486 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1487 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1488 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1489 cdbd->rw_10.addr[3] = 0; 1490 cdbd->rw_10.reserved = 0; 1491 cdbd->rw_10.length[0] = 0; 1492 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1493 cdbd->rw_10.control = cdbs->rw_6.control; 1494 break; 1495 default: 1496 break; 1497 } 1498 1499 /* 1500 * And dispatch 1501 */ 1502 xa->complete = sili_atapi_complete_cmd; 1503 xa->atascsi_private = ccb; 1504 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1505 sili_os_lock_port(ap); 1506 sili_ata_cmd(xa); 1507 sili_os_unlock_port(ap); 1508 } 1509 1510 /* 1511 * Simulate page inquiries for disk attachments. 1512 */ 1513 static 1514 void 1515 sili_xpt_page_inquiry(struct sili_port *ap, struct ata_port *at, union ccb *ccb) 1516 { 1517 union { 1518 struct scsi_vpd_supported_page_list list; 1519 struct scsi_vpd_unit_serial_number serno; 1520 struct scsi_vpd_unit_devid devid; 1521 char buf[256]; 1522 } *page; 1523 scsi_cdb_t cdb; 1524 int i; 1525 int j; 1526 int len; 1527 1528 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO); 1529 1530 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1531 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1532 1533 switch(cdb->inquiry.page_code) { 1534 case SVPD_SUPPORTED_PAGE_LIST: 1535 i = 0; 1536 page->list.device = T_DIRECT; 1537 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST; 1538 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST; 1539 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER; 1540 page->list.list[i++] = SVPD_UNIT_DEVID; 1541 page->list.length = i; 1542 len = offsetof(struct scsi_vpd_supported_page_list, list[3]); 1543 break; 1544 case SVPD_UNIT_SERIAL_NUMBER: 1545 i = 0; 1546 j = sizeof(at->at_identify.serial); 1547 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i) 1548 ; 1549 while (j > i && at->at_identify.serial[j-1] == ' ') 1550 --j; 1551 page->serno.device = T_DIRECT; 1552 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER; 1553 page->serno.length = j - i; 1554 bcopy(at->at_identify.serial + i, 1555 page->serno.serial_num, j - i); 1556 len = offsetof(struct scsi_vpd_unit_serial_number, 1557 serial_num[j-i]); 1558 break; 1559 case SVPD_UNIT_DEVID: 1560 /* fall through for now */ 1561 default: 1562 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1563 len = 0; 1564 break; 1565 } 1566 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1567 if (len <= ccb->csio.dxfer_len) { 1568 ccb->ccb_h.status = CAM_REQ_CMP; 1569 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len); 1570 bcopy(page, ccb->csio.data_ptr, len); 1571 ccb->csio.resid = ccb->csio.dxfer_len - len; 1572 } else { 1573 ccb->ccb_h.status = CAM_CCB_LEN_ERR; 1574 } 1575 } 1576 kfree(page, M_DEVBUF); 1577 } 1578 1579 /* 1580 * Completion function for ATA_PORT_T_DISK cache synchronization. 1581 */ 1582 static 1583 void 1584 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1585 { 1586 union ccb *ccb = xa->atascsi_private; 1587 struct ccb_hdr *ccbh = &ccb->ccb_h; 1588 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1589 1590 switch(xa->state) { 1591 case ATA_S_COMPLETE: 1592 ccbh->status = CAM_REQ_CMP; 1593 ccb->csio.scsi_status = SCSI_STATUS_OK; 1594 break; 1595 case ATA_S_ERROR: 1596 kprintf("%s: synchronize_cache: error\n", 1597 ATANAME(ap, xa->at)); 1598 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1599 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1600 sili_ata_dummy_sense(&ccb->csio.sense_data); 1601 break; 1602 case ATA_S_TIMEOUT: 1603 kprintf("%s: synchronize_cache: timeout\n", 1604 ATANAME(ap, xa->at)); 1605 ccbh->status = CAM_CMD_TIMEOUT; 1606 break; 1607 default: 1608 kprintf("%s: synchronize_cache: unknown state %d\n", 1609 ATANAME(ap, xa->at), xa->state); 1610 ccbh->status = CAM_REQ_CMP_ERR; 1611 break; 1612 } 1613 sili_ata_put_xfer(xa); 1614 sili_os_unlock_port(ap); 1615 xpt_done(ccb); 1616 sili_os_lock_port(ap); 1617 } 1618 1619 /* 1620 * Completion function for ATA_PORT_T_DISK I/O 1621 */ 1622 static 1623 void 1624 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1625 { 1626 union ccb *ccb = xa->atascsi_private; 1627 struct ccb_hdr *ccbh = &ccb->ccb_h; 1628 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1629 1630 switch(xa->state) { 1631 case ATA_S_COMPLETE: 1632 ccbh->status = CAM_REQ_CMP; 1633 ccb->csio.scsi_status = SCSI_STATUS_OK; 1634 break; 1635 case ATA_S_ERROR: 1636 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1637 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1638 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1639 sili_ata_dummy_sense(&ccb->csio.sense_data); 1640 break; 1641 case ATA_S_TIMEOUT: 1642 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1643 ccbh->status = CAM_CMD_TIMEOUT; 1644 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1645 sili_ata_dummy_sense(&ccb->csio.sense_data); 1646 break; 1647 default: 1648 kprintf("%s: disk_rw: unknown state %d\n", 1649 ATANAME(ap, xa->at), xa->state); 1650 ccbh->status = CAM_REQ_CMP_ERR; 1651 break; 1652 } 1653 ccb->csio.resid = xa->resid; 1654 sili_ata_put_xfer(xa); 1655 sili_os_unlock_port(ap); 1656 xpt_done(ccb); 1657 sili_os_lock_port(ap); 1658 } 1659 1660 /* 1661 * Completion function for ATA_PORT_T_ATAPI I/O 1662 * 1663 * Sense data is returned in the rfis. 1664 */ 1665 static 1666 void 1667 sili_atapi_complete_cmd(struct ata_xfer *xa) 1668 { 1669 union ccb *ccb = xa->atascsi_private; 1670 struct ccb_hdr *ccbh = &ccb->ccb_h; 1671 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1672 scsi_cdb_t cdb; 1673 1674 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1675 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1676 1677 switch(xa->state) { 1678 case ATA_S_COMPLETE: 1679 ccbh->status = CAM_REQ_CMP; 1680 ccb->csio.scsi_status = SCSI_STATUS_OK; 1681 break; 1682 case ATA_S_ERROR: 1683 ccbh->status = CAM_SCSI_STATUS_ERROR; 1684 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1685 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1686 break; 1687 case ATA_S_TIMEOUT: 1688 kprintf("%s: cmd %d: timeout\n", 1689 PORTNAME(ap), cdb->generic.opcode); 1690 ccbh->status = CAM_CMD_TIMEOUT; 1691 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1692 sili_ata_dummy_sense(&ccb->csio.sense_data); 1693 break; 1694 default: 1695 kprintf("%s: cmd %d: unknown state %d\n", 1696 PORTNAME(ap), cdb->generic.opcode, xa->state); 1697 ccbh->status = CAM_REQ_CMP_ERR; 1698 break; 1699 } 1700 ccb->csio.resid = xa->resid; 1701 sili_ata_put_xfer(xa); 1702 sili_os_unlock_port(ap); 1703 xpt_done(ccb); 1704 sili_os_lock_port(ap); 1705 } 1706 1707 /* 1708 * Construct dummy sense data for errors on DISKs 1709 */ 1710 static 1711 void 1712 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1713 { 1714 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1715 sense_data->segment = 0; 1716 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1717 sense_data->info[0] = 0; 1718 sense_data->info[1] = 0; 1719 sense_data->info[2] = 0; 1720 sense_data->info[3] = 0; 1721 sense_data->extra_len = 0; 1722 } 1723 1724 /* 1725 * Construct atapi sense data for errors on ATAPI 1726 * 1727 * The ATAPI sense data is stored in the passed rfis and must be converted 1728 * to SCSI sense data. 1729 */ 1730 static 1731 void 1732 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1733 struct scsi_sense_data *sense_data) 1734 { 1735 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1736 sense_data->segment = 0; 1737 sense_data->flags = (rfis->error & 0xF0) >> 4; 1738 if (rfis->error & 0x04) 1739 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1740 if (rfis->error & 0x02) 1741 sense_data->flags |= SSD_EOM; 1742 if (rfis->error & 0x01) 1743 sense_data->flags |= SSD_ILI; 1744 sense_data->info[0] = 0; 1745 sense_data->info[1] = 0; 1746 sense_data->info[2] = 0; 1747 sense_data->info[3] = 0; 1748 sense_data->extra_len = 0; 1749 } 1750 1751 static 1752 void 1753 sili_strip_string(const char **basep, int *lenp) 1754 { 1755 const char *base = *basep; 1756 int len = *lenp; 1757 1758 while (len && (*base == 0 || *base == ' ')) { 1759 --len; 1760 ++base; 1761 } 1762 while (len && (base[len-1] == 0 || base[len-1] == ' ')) 1763 --len; 1764 *basep = base; 1765 *lenp = len; 1766 } 1767