1 /* 2 * (MPSAFE) 3 * 4 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 5 * 6 * This code is derived from software contributed to The DragonFly Project 7 * by Matthew Dillon <dillon@backplane.com> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 3. Neither the name of The DragonFly Project nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific, prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 31 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * 37 * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> 38 * 39 * Permission to use, copy, modify, and distribute this software for any 40 * purpose with or without fee is hereby granted, provided that the above 41 * copyright notice and this permission notice appear in all copies. 42 * 43 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 44 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 45 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 46 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 47 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 48 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 49 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 50 * 51 * $OpenBSD: atascsi.c,v 1.64 2009/02/16 21:19:06 miod Exp $ 52 * $DragonFly$ 53 */ 54 /* 55 * Implement each SATA port as its own SCSI bus on CAM. This way we can 56 * implement future port multiplier features as individual devices on the 57 * bus. 58 * 59 * Much of the cdb<->xa conversion code was taken from OpenBSD, the rest 60 * was written natively for DragonFly. 61 */ 62 63 #include "sili.h" 64 65 static void sili_xpt_action(struct cam_sim *sim, union ccb *ccb); 66 static void sili_xpt_poll(struct cam_sim *sim); 67 static void sili_xpt_scsi_disk_io(struct sili_port *ap, 68 struct ata_port *at, union ccb *ccb); 69 static void sili_xpt_scsi_atapi_io(struct sili_port *ap, 70 struct ata_port *at, union ccb *ccb); 71 static void sili_xpt_page_inquiry(struct sili_port *ap, 72 struct ata_port *at, union ccb *ccb); 73 74 static void sili_ata_complete_disk_rw(struct ata_xfer *xa); 75 static void sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa); 76 static void sili_atapi_complete_cmd(struct ata_xfer *xa); 77 static void sili_ata_dummy_sense(struct scsi_sense_data *sense_data); 78 static void sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 79 struct scsi_sense_data *sense_data); 80 81 static int sili_cam_probe_disk(struct sili_port *ap, struct ata_port *at); 82 static int sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *at); 83 static void sili_ata_dummy_done(struct ata_xfer *xa); 84 static void ata_fix_identify(struct ata_identify *id); 85 static int sili_set_xfer(struct sili_port *ap, struct ata_port *atx); 86 static void sili_cam_rescan(struct sili_port *ap); 87 static void sili_strip_string(const char **basep, int *lenp); 88 89 int 90 sili_cam_attach(struct sili_port *ap) 91 { 92 struct cam_devq *devq; 93 struct cam_sim *sim; 94 int error; 95 int unit; 96 97 /* 98 * We want at least one ccb to be available for error processing 99 * so don't let CAM use more then ncmds - 1. 100 */ 101 unit = device_get_unit(ap->ap_sc->sc_dev); 102 if (ap->ap_sc->sc_ncmds > 1) 103 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds - 1); 104 else 105 devq = cam_simq_alloc(ap->ap_sc->sc_ncmds); 106 if (devq == NULL) { 107 return (ENOMEM); 108 } 109 sim = cam_sim_alloc(sili_xpt_action, sili_xpt_poll, "sili", 110 (void *)ap, unit, &ap->ap_sim_lock, 1, 1, devq); 111 cam_simq_release(devq); 112 if (sim == NULL) { 113 return (ENOMEM); 114 } 115 ap->ap_sim = sim; 116 sili_os_unlock_port(ap); 117 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 118 error = xpt_bus_register(ap->ap_sim, ap->ap_num); 119 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 120 sili_os_lock_port(ap); 121 if (error != CAM_SUCCESS) { 122 sili_cam_detach(ap); 123 return (EINVAL); 124 } 125 ap->ap_flags |= AP_F_BUS_REGISTERED; 126 127 if (ap->ap_probe == ATA_PROBE_NEED_IDENT) 128 error = sili_cam_probe(ap, NULL); 129 else 130 error = 0; 131 if (error) { 132 sili_cam_detach(ap); 133 return (EIO); 134 } 135 ap->ap_flags |= AP_F_CAM_ATTACHED; 136 137 return(0); 138 } 139 140 /* 141 * The state of the port has changed. 142 * 143 * If at is NULL the physical port has changed state. 144 * If at is non-NULL a particular target behind a PM has changed state. 145 * 146 * If found is -1 the target state must be queued to a non-interrupt context. 147 * (only works with at == NULL). 148 * 149 * If found is 0 the target was removed. 150 * If found is 1 the target was inserted. 151 */ 152 void 153 sili_cam_changed(struct sili_port *ap, struct ata_port *atx, int found) 154 { 155 struct cam_path *tmppath; 156 int status; 157 int target; 158 159 target = atx ? atx->at_target : CAM_TARGET_WILDCARD; 160 161 if (ap->ap_sim == NULL) 162 return; 163 if (found == CAM_TARGET_WILDCARD) { 164 status = xpt_create_path(&tmppath, NULL, 165 cam_sim_path(ap->ap_sim), 166 target, CAM_LUN_WILDCARD); 167 if (status != CAM_REQ_CMP) 168 return; 169 sili_cam_rescan(ap); 170 } else { 171 status = xpt_create_path(&tmppath, NULL, 172 cam_sim_path(ap->ap_sim), 173 target, 174 CAM_LUN_WILDCARD); 175 if (status != CAM_REQ_CMP) 176 return; 177 #if 0 178 /* 179 * This confuses CAM 180 */ 181 if (found) 182 xpt_async(AC_FOUND_DEVICE, tmppath, NULL); 183 else 184 xpt_async(AC_LOST_DEVICE, tmppath, NULL); 185 #endif 186 } 187 xpt_free_path(tmppath); 188 } 189 190 void 191 sili_cam_detach(struct sili_port *ap) 192 { 193 int error; 194 195 if ((ap->ap_flags & AP_F_CAM_ATTACHED) == 0) 196 return; 197 lockmgr(&ap->ap_sim_lock, LK_EXCLUSIVE); 198 if (ap->ap_sim) { 199 xpt_freeze_simq(ap->ap_sim, 1); 200 } 201 if (ap->ap_flags & AP_F_BUS_REGISTERED) { 202 error = xpt_bus_deregister(cam_sim_path(ap->ap_sim)); 203 KKASSERT(error == CAM_REQ_CMP); 204 ap->ap_flags &= ~AP_F_BUS_REGISTERED; 205 } 206 if (ap->ap_sim) { 207 cam_sim_free(ap->ap_sim); 208 ap->ap_sim = NULL; 209 } 210 lockmgr(&ap->ap_sim_lock, LK_RELEASE); 211 ap->ap_flags &= ~AP_F_CAM_ATTACHED; 212 } 213 214 /* 215 * Once the SILI port has been attached we need to probe for a device or 216 * devices on the port and setup various options. 217 * 218 * If at is NULL we are probing the direct-attached device on the port, 219 * which may or may not be a port multiplier. 220 */ 221 int 222 sili_cam_probe(struct sili_port *ap, struct ata_port *atx) 223 { 224 struct ata_port *at; 225 struct ata_xfer *xa; 226 u_int64_t capacity; 227 u_int64_t capacity_bytes; 228 int model_len; 229 int firmware_len; 230 int serial_len; 231 int error; 232 int devncqdepth; 233 int i; 234 const char *model_id; 235 const char *firmware_id; 236 const char *serial_id; 237 const char *wcstr; 238 const char *rastr; 239 const char *scstr; 240 const char *type; 241 242 error = EIO; 243 244 /* 245 * Delayed CAM attachment for initial probe, sim may be NULL 246 */ 247 if (ap->ap_sim == NULL) 248 return(0); 249 250 /* 251 * A NULL atx indicates a probe of the directly connected device. 252 * A non-NULL atx indicates a device connected via a port multiplier. 253 * We need to preserve atx for calls to sili_ata_get_xfer(). 254 * 255 * at is always non-NULL. For directly connected devices we supply 256 * an (at) pointing to target 0. 257 */ 258 if (atx == NULL) { 259 at = ap->ap_ata; /* direct attached - device 0 */ 260 if (ap->ap_type == ATA_PORT_T_PM) { 261 kprintf("%s: Found Port Multiplier\n", 262 ATANAME(ap, atx)); 263 return (0); 264 } 265 at->at_type = ap->ap_type; 266 } else { 267 at = atx; 268 if (atx->at_type == ATA_PORT_T_PM) { 269 kprintf("%s: Bogus device, reducing port count to %d\n", 270 ATANAME(ap, atx), atx->at_target); 271 if (ap->ap_pmcount > atx->at_target) 272 ap->ap_pmcount = atx->at_target; 273 goto err; 274 } 275 } 276 if (ap->ap_type == ATA_PORT_T_NONE) 277 goto err; 278 if (at->at_type == ATA_PORT_T_NONE) 279 goto err; 280 281 /* 282 * Issue identify, saving the result 283 */ 284 xa = sili_ata_get_xfer(ap, atx); 285 xa->complete = sili_ata_dummy_done; 286 xa->data = &at->at_identify; 287 xa->datalen = sizeof(at->at_identify); 288 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 289 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 290 291 switch(at->at_type) { 292 case ATA_PORT_T_DISK: 293 xa->fis->command = ATA_C_IDENTIFY; 294 type = "DISK"; 295 break; 296 case ATA_PORT_T_ATAPI: 297 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 298 xa->flags |= ATA_F_AUTOSENSE; 299 type = "ATAPI"; 300 break; 301 default: 302 xa->fis->command = ATA_C_ATAPI_IDENTIFY; 303 type = "UNKNOWN(ATAPI?)"; 304 break; 305 } 306 xa->fis->features = 0; 307 xa->fis->device = 0; 308 xa->timeout = 1000; 309 310 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 311 kprintf("%s: Detected %s device but unable to IDENTIFY\n", 312 ATANAME(ap, atx), type); 313 sili_ata_put_xfer(xa); 314 goto err; 315 } 316 sili_ata_put_xfer(xa); 317 318 ata_fix_identify(&at->at_identify); 319 320 /* 321 * Read capacity using SATA probe info. 322 */ 323 if (le16toh(at->at_identify.cmdset83) & 0x0400) { 324 /* LBA48 feature set supported */ 325 capacity = 0; 326 for (i = 3; i >= 0; --i) { 327 capacity <<= 16; 328 capacity += 329 le16toh(at->at_identify.addrsecxt[i]); 330 } 331 } else { 332 capacity = le16toh(at->at_identify.addrsec[1]); 333 capacity <<= 16; 334 capacity += le16toh(at->at_identify.addrsec[0]); 335 } 336 at->at_capacity = capacity; 337 if (atx == NULL) 338 ap->ap_probe = ATA_PROBE_GOOD; 339 340 capacity_bytes = capacity * 512; 341 342 /* 343 * Negotiate NCQ, throw away any ata_xfer's beyond the negotiated 344 * number of slots and limit the number of CAM ccb's to one less 345 * so we always have a slot available for recovery. 346 * 347 * NCQ is not used if ap_ncqdepth is 1 or the host controller does 348 * not support it, and in that case the driver can handle extra 349 * ccb's. 350 * 351 * NCQ is currently used only with direct-attached disks. It is 352 * not used with port multipliers or direct-attached ATAPI devices. 353 * 354 * Remember at least one extra CCB needs to be reserved for the 355 * error ccb. 356 */ 357 if ((ap->ap_sc->sc_flags & SILI_F_NCQ) && 358 at->at_type == ATA_PORT_T_DISK && 359 (le16toh(at->at_identify.satacap) & (1 << 8))) { 360 at->at_ncqdepth = (le16toh(at->at_identify.qdepth) & 0x1F) + 1; 361 devncqdepth = at->at_ncqdepth; 362 if (at->at_ncqdepth > ap->ap_sc->sc_ncmds) 363 at->at_ncqdepth = ap->ap_sc->sc_ncmds; 364 if (at->at_ncqdepth > 1) { 365 for (i = 0; i < ap->ap_sc->sc_ncmds; ++i) { 366 xa = sili_ata_get_xfer(ap, atx); 367 if (xa->tag < at->at_ncqdepth) { 368 xa->state = ATA_S_COMPLETE; 369 sili_ata_put_xfer(xa); 370 } 371 } 372 if (at->at_ncqdepth >= ap->ap_sc->sc_ncmds) { 373 cam_devq_resize(ap->ap_sim->devq, 374 at->at_ncqdepth - 1); 375 } 376 } 377 } else { 378 devncqdepth = 0; 379 } 380 381 /* 382 * Make the model string a bit more presentable 383 */ 384 for (model_len = 40; model_len; --model_len) { 385 if (at->at_identify.model[model_len-1] == ' ') 386 continue; 387 if (at->at_identify.model[model_len-1] == 0) 388 continue; 389 break; 390 } 391 392 model_len = sizeof(at->at_identify.model); 393 model_id = at->at_identify.model; 394 sili_strip_string(&model_id, &model_len); 395 396 firmware_len = sizeof(at->at_identify.firmware); 397 firmware_id = at->at_identify.firmware; 398 sili_strip_string(&firmware_id, &firmware_len); 399 400 serial_len = sizeof(at->at_identify.serial); 401 serial_id = at->at_identify.serial; 402 sili_strip_string(&serial_id, &serial_len); 403 404 /* 405 * Generate informatiive strings. 406 * 407 * NOTE: We do not automatically set write caching, lookahead, 408 * or the security state for ATAPI devices. 409 */ 410 if (at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) { 411 if (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) 412 wcstr = "enabled"; 413 else if (at->at_type == ATA_PORT_T_ATAPI) 414 wcstr = "disabled"; 415 else 416 wcstr = "enabling"; 417 } else { 418 wcstr = "notsupp"; 419 } 420 421 if (at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) { 422 if (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) 423 rastr = "enabled"; 424 else if (at->at_type == ATA_PORT_T_ATAPI) 425 rastr = "disabled"; 426 else 427 rastr = "enabling"; 428 } else { 429 rastr = "notsupp"; 430 } 431 432 if (at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) { 433 if (at->at_identify.securestatus & ATA_SECURE_FROZEN) 434 scstr = "frozen"; 435 else if (at->at_type == ATA_PORT_T_ATAPI) 436 scstr = "unfrozen"; 437 else if (SiliNoFeatures & (1 << ap->ap_num)) 438 scstr = "<disabled>"; 439 else 440 scstr = "freezing"; 441 } else { 442 scstr = "notsupp"; 443 } 444 445 kprintf("%s: Found %s \"%*.*s %*.*s\" serial=\"%*.*s\"\n" 446 "%s: tags=%d/%d satacap=%04x satafea=%04x NCQ=%s " 447 "capacity=%lld.%02dMB\n", 448 449 ATANAME(ap, atx), 450 type, 451 model_len, model_len, model_id, 452 firmware_len, firmware_len, firmware_id, 453 serial_len, serial_len, serial_id, 454 455 ATANAME(ap, atx), 456 devncqdepth, ap->ap_sc->sc_ncmds, 457 at->at_identify.satacap, 458 at->at_identify.satafsup, 459 (at->at_ncqdepth > 1 ? "YES" : "NO"), 460 (long long)capacity_bytes / (1024 * 1024), 461 (int)(capacity_bytes % (1024 * 1024)) * 100 / (1024 * 1024) 462 ); 463 kprintf("%s: f85=%04x f86=%04x f87=%04x WC=%s RA=%s SEC=%s\n", 464 ATANAME(ap, atx), 465 at->at_identify.features85, 466 at->at_identify.features86, 467 at->at_identify.features87, 468 wcstr, 469 rastr, 470 scstr 471 ); 472 473 /* 474 * Additional type-specific probing 475 */ 476 switch(at->at_type) { 477 case ATA_PORT_T_DISK: 478 error = sili_cam_probe_disk(ap, atx); 479 break; 480 case ATA_PORT_T_ATAPI: 481 error = sili_cam_probe_atapi(ap, atx); 482 break; 483 default: 484 error = EIO; 485 break; 486 } 487 err: 488 if (error) { 489 at->at_probe = ATA_PROBE_FAILED; 490 if (atx == NULL) 491 ap->ap_probe = at->at_probe; 492 } else { 493 at->at_probe = ATA_PROBE_GOOD; 494 if (atx == NULL) 495 ap->ap_probe = at->at_probe; 496 } 497 return (error); 498 } 499 500 /* 501 * DISK-specific probe after initial ident 502 */ 503 static int 504 sili_cam_probe_disk(struct sili_port *ap, struct ata_port *atx) 505 { 506 struct ata_port *at; 507 struct ata_xfer *xa; 508 509 at = atx ? atx : ap->ap_ata; 510 511 /* 512 * Set dummy xfer mode 513 */ 514 sili_set_xfer(ap, atx); 515 516 /* 517 * Enable write cache if supported 518 * 519 * NOTE: "WD My Book" external disk devices have a very poor 520 * daughter board between the the ESATA and the HD. Sending 521 * any ATA_C_SET_FEATURES commands will break the hardware port 522 * with a fatal protocol error. However, this device also 523 * indicates that WRITECACHE is already on and READAHEAD is 524 * not supported so we avoid the issue. 525 */ 526 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_WRITECACHE) && 527 (at->at_identify.features85 & ATA_IDENTIFY_WRITECACHE) == 0) { 528 xa = sili_ata_get_xfer(ap, atx); 529 xa->complete = sili_ata_dummy_done; 530 xa->fis->command = ATA_C_SET_FEATURES; 531 /*xa->fis->features = ATA_SF_WRITECACHE_EN;*/ 532 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 533 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 534 xa->fis->device = 0; 535 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 536 xa->timeout = 1000; 537 xa->datalen = 0; 538 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 539 at->at_features |= ATA_PORT_F_WCACHE; 540 else 541 kprintf("%s: Unable to enable write-caching\n", 542 ATANAME(ap, atx)); 543 sili_ata_put_xfer(xa); 544 } 545 546 /* 547 * Enable readahead if supported 548 */ 549 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_LOOKAHEAD) && 550 (at->at_identify.features85 & ATA_IDENTIFY_LOOKAHEAD) == 0) { 551 xa = sili_ata_get_xfer(ap, atx); 552 xa->complete = sili_ata_dummy_done; 553 xa->fis->command = ATA_C_SET_FEATURES; 554 xa->fis->features = ATA_SF_LOOKAHEAD_EN; 555 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 556 xa->fis->device = 0; 557 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 558 xa->timeout = 1000; 559 xa->datalen = 0; 560 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 561 at->at_features |= ATA_PORT_F_RAHEAD; 562 else 563 kprintf("%s: Unable to enable read-ahead\n", 564 ATANAME(ap, atx)); 565 sili_ata_put_xfer(xa); 566 } 567 568 /* 569 * FREEZE LOCK the device so malicious users can't lock it on us. 570 * As there is no harm in issuing this to devices that don't 571 * support the security feature set we just send it, and don't bother 572 * checking if the device sends a command abort to tell us it doesn't 573 * support it 574 */ 575 if ((at->at_identify.cmdset82 & ATA_IDENTIFY_SECURITY) && 576 (at->at_identify.securestatus & ATA_SECURE_FROZEN) == 0 && 577 (SiliNoFeatures & (1 << ap->ap_num)) == 0) { 578 xa = sili_ata_get_xfer(ap, atx); 579 xa->complete = sili_ata_dummy_done; 580 xa->fis->command = ATA_C_SEC_FREEZE_LOCK; 581 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 582 xa->flags = ATA_F_READ | ATA_F_PIO | ATA_F_POLL; 583 xa->timeout = 1000; 584 xa->datalen = 0; 585 if (sili_ata_cmd(xa) == ATA_S_COMPLETE) 586 at->at_features |= ATA_PORT_F_FRZLCK; 587 else 588 kprintf("%s: Unable to set security freeze\n", 589 ATANAME(ap, atx)); 590 sili_ata_put_xfer(xa); 591 } 592 593 return (0); 594 } 595 596 /* 597 * ATAPI-specific probe after initial ident 598 */ 599 static int 600 sili_cam_probe_atapi(struct sili_port *ap, struct ata_port *atx) 601 { 602 sili_set_xfer(ap, atx); 603 return(0); 604 } 605 606 /* 607 * Setting the transfer mode is irrelevant for the SATA transport 608 * but some (atapi) devices seem to need it anyway. In addition 609 * if we are running through a SATA->PATA converter for some reason 610 * beyond my comprehension we might have to set the mode. 611 * 612 * We only support DMA modes for SATA attached devices, so don't bother 613 * with legacy modes. 614 */ 615 static int 616 sili_set_xfer(struct sili_port *ap, struct ata_port *atx) 617 { 618 struct ata_port *at; 619 struct ata_xfer *xa; 620 u_int16_t mode; 621 u_int16_t mask; 622 623 at = atx ? atx : ap->ap_ata; 624 625 /* 626 * Figure out the supported UDMA mode. Ignore other legacy modes. 627 */ 628 mask = le16toh(at->at_identify.ultradma); 629 if ((mask & 0xFF) == 0 || mask == 0xFFFF) 630 return(0); 631 mask &= 0xFF; 632 mode = 0x4F; 633 while ((mask & 0x8000) == 0) { 634 mask <<= 1; 635 --mode; 636 } 637 638 /* 639 * SATA atapi devices often still report a dma mode, even though 640 * it is irrelevant for SATA transport. It is also possible that 641 * we are running through a SATA->PATA converter and seeing the 642 * PATA dma mode. 643 * 644 * In this case the device may require a (dummy) SETXFER to be 645 * sent before it will work properly. 646 */ 647 xa = sili_ata_get_xfer(ap, atx); 648 xa->complete = sili_ata_dummy_done; 649 xa->fis->command = ATA_C_SET_FEATURES; 650 xa->fis->features = ATA_SF_SETXFER; 651 xa->fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 652 xa->fis->sector_count = mode; 653 xa->flags = ATA_F_PIO | ATA_F_POLL; 654 xa->timeout = 1000; 655 xa->datalen = 0; 656 if (sili_ata_cmd(xa) != ATA_S_COMPLETE) { 657 kprintf("%s: Unable to set dummy xfer mode \n", 658 ATANAME(ap, atx)); 659 } else if (bootverbose) { 660 kprintf("%s: Set dummy xfer mode to %02x\n", 661 ATANAME(ap, atx), mode); 662 } 663 sili_ata_put_xfer(xa); 664 return(0); 665 } 666 667 /* 668 * Fix byte ordering so buffers can be accessed as 669 * strings. 670 */ 671 static void 672 ata_fix_identify(struct ata_identify *id) 673 { 674 u_int16_t *swap; 675 int i; 676 677 swap = (u_int16_t *)id->serial; 678 for (i = 0; i < sizeof(id->serial) / sizeof(u_int16_t); i++) 679 swap[i] = bswap16(swap[i]); 680 681 swap = (u_int16_t *)id->firmware; 682 for (i = 0; i < sizeof(id->firmware) / sizeof(u_int16_t); i++) 683 swap[i] = bswap16(swap[i]); 684 685 swap = (u_int16_t *)id->model; 686 for (i = 0; i < sizeof(id->model) / sizeof(u_int16_t); i++) 687 swap[i] = bswap16(swap[i]); 688 } 689 690 /* 691 * Dummy done callback for xa. 692 */ 693 static void 694 sili_ata_dummy_done(struct ata_xfer *xa) 695 { 696 } 697 698 /* 699 * Use an engineering request to initiate a target scan for devices 700 * behind a port multiplier. 701 * 702 * An asynchronous bus scan is used to avoid reentrancy issues. 703 */ 704 static void 705 sili_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 706 { 707 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 708 709 if (ccb->ccb_h.func_code == XPT_SCAN_BUS) { 710 ap->ap_flags &= ~AP_F_SCAN_RUNNING; 711 if (ap->ap_flags & AP_F_SCAN_REQUESTED) { 712 ap->ap_flags &= ~AP_F_SCAN_REQUESTED; 713 sili_cam_rescan(ap); 714 } 715 ap->ap_flags |= AP_F_SCAN_COMPLETED; 716 wakeup(&ap->ap_flags); 717 } 718 xpt_free_ccb(ccb); 719 } 720 721 static void 722 sili_cam_rescan(struct sili_port *ap) 723 { 724 struct cam_path *path; 725 union ccb *ccb; 726 int status; 727 int i; 728 729 if (ap->ap_flags & AP_F_SCAN_RUNNING) { 730 ap->ap_flags |= AP_F_SCAN_REQUESTED; 731 return; 732 } 733 ap->ap_flags |= AP_F_SCAN_RUNNING; 734 for (i = 0; i < SILI_MAX_PMPORTS; ++i) { 735 ap->ap_ata[i].at_features |= ATA_PORT_F_RESCAN; 736 } 737 738 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 739 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 740 if (status != CAM_REQ_CMP) 741 return; 742 743 ccb = xpt_alloc_ccb(); 744 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 745 ccb->ccb_h.func_code = XPT_ENG_EXEC; 746 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 747 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 748 ccb->crcn.flags = CAM_FLAG_NONE; 749 xpt_action_async(ccb); 750 } 751 752 static void 753 sili_xpt_rescan(struct sili_port *ap) 754 { 755 struct cam_path *path; 756 union ccb *ccb; 757 int status; 758 759 status = xpt_create_path(&path, xpt_periph, cam_sim_path(ap->ap_sim), 760 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 761 if (status != CAM_REQ_CMP) 762 return; 763 764 ccb = xpt_alloc_ccb(); 765 xpt_setup_ccb(&ccb->ccb_h, path, 5); /* 5 = low priority */ 766 ccb->ccb_h.func_code = XPT_SCAN_BUS; 767 ccb->ccb_h.cbfcnp = sili_cam_rescan_callback; 768 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 769 ccb->crcn.flags = CAM_FLAG_NONE; 770 xpt_action_async(ccb); 771 } 772 773 /* 774 * Action function - dispatch command 775 */ 776 static 777 void 778 sili_xpt_action(struct cam_sim *sim, union ccb *ccb) 779 { 780 struct sili_port *ap; 781 struct ata_port *at, *atx; 782 struct ccb_hdr *ccbh; 783 int unit; 784 785 /* XXX lock */ 786 ap = cam_sim_softc(sim); 787 at = ap->ap_ata; 788 atx = NULL; 789 KKASSERT(ap != NULL); 790 ccbh = &ccb->ccb_h; 791 unit = cam_sim_unit(sim); 792 793 /* 794 * Early failure checks. These checks do not apply to XPT_PATH_INQ, 795 * otherwise the bus rescan will not remove the dead devices when 796 * unplugging a PM. 797 * 798 * For non-wildcards we have one target (0) and one lun (0), 799 * unless we have a port multiplier. 800 * 801 * A wildcard target indicates only the general bus is being 802 * probed. 803 * 804 * Calculate at and atx. at is always non-NULL. atx is only 805 * non-NULL for direct-attached devices. It will be NULL for 806 * devices behind a port multiplier. 807 * 808 * XXX What do we do with a LUN wildcard? 809 */ 810 if (ccbh->target_id != CAM_TARGET_WILDCARD && 811 ccbh->func_code != XPT_PATH_INQ) { 812 if (ap->ap_type == ATA_PORT_T_NONE) { 813 ccbh->status = CAM_DEV_NOT_THERE; 814 xpt_done(ccb); 815 return; 816 } 817 if (ccbh->target_id < 0 || ccbh->target_id >= ap->ap_pmcount) { 818 ccbh->status = CAM_DEV_NOT_THERE; 819 xpt_done(ccb); 820 return; 821 } 822 at += ccbh->target_id; 823 if (ap->ap_type == ATA_PORT_T_PM) 824 atx = at; 825 826 if (ccbh->target_lun != CAM_LUN_WILDCARD && ccbh->target_lun) { 827 ccbh->status = CAM_DEV_NOT_THERE; 828 xpt_done(ccb); 829 return; 830 } 831 } 832 833 /* 834 * Switch on the meta XPT command 835 */ 836 switch(ccbh->func_code) { 837 case XPT_ENG_EXEC: 838 /* 839 * This routine is called after a port multiplier has been 840 * probed. 841 */ 842 ccbh->status = CAM_REQ_CMP; 843 sili_os_lock_port(ap); 844 sili_port_state_machine(ap, 0); 845 sili_os_unlock_port(ap); 846 xpt_done(ccb); 847 sili_xpt_rescan(ap); 848 break; 849 case XPT_PATH_INQ: 850 /* 851 * This command always succeeds, otherwise the bus scan 852 * will not detach dead devices. 853 */ 854 ccb->cpi.version_num = 1; 855 ccb->cpi.hba_inquiry = 0; 856 ccb->cpi.target_sprt = 0; 857 ccb->cpi.hba_misc = PIM_SEQSCAN; 858 ccb->cpi.hba_eng_cnt = 0; 859 bzero(ccb->cpi.vuhba_flags, sizeof(ccb->cpi.vuhba_flags)); 860 ccb->cpi.max_target = SILI_MAX_PMPORTS - 1; 861 ccb->cpi.max_lun = 0; 862 ccb->cpi.async_flags = 0; 863 ccb->cpi.hpath_id = 0; 864 ccb->cpi.initiator_id = SILI_MAX_PMPORTS - 1; 865 ccb->cpi.unit_number = cam_sim_unit(sim); 866 ccb->cpi.bus_id = cam_sim_bus(sim); 867 ccb->cpi.base_transfer_speed = 150000; 868 ccb->cpi.transport = XPORT_SATA; 869 ccb->cpi.transport_version = 1; 870 ccb->cpi.protocol = PROTO_SCSI; 871 ccb->cpi.protocol_version = SCSI_REV_2; 872 873 ccbh->status = CAM_REQ_CMP; 874 if (ccbh->target_id == CAM_TARGET_WILDCARD) { 875 sili_os_lock_port(ap); 876 sili_port_state_machine(ap, 0); 877 sili_os_unlock_port(ap); 878 } else { 879 switch(sili_pread(ap, SILI_PREG_SSTS) & 880 SILI_PREG_SSTS_SPD) { 881 case SILI_PREG_SSTS_SPD_GEN1: 882 ccb->cpi.base_transfer_speed = 150000; 883 break; 884 case SILI_PREG_SSTS_SPD_GEN2: 885 ccb->cpi.base_transfer_speed = 300000; 886 break; 887 default: 888 /* unknown */ 889 ccb->cpi.base_transfer_speed = 1000; 890 break; 891 } 892 #if 0 893 if (ap->ap_type == ATA_PORT_T_NONE) 894 ccbh->status = CAM_DEV_NOT_THERE; 895 #endif 896 } 897 xpt_done(ccb); 898 break; 899 case XPT_RESET_DEV: 900 sili_os_lock_port(ap); 901 if (ap->ap_type == ATA_PORT_T_NONE) { 902 ccbh->status = CAM_DEV_NOT_THERE; 903 } else { 904 sili_port_reset(ap, atx, 0); 905 ccbh->status = CAM_REQ_CMP; 906 } 907 sili_os_unlock_port(ap); 908 xpt_done(ccb); 909 break; 910 case XPT_RESET_BUS: 911 sili_os_lock_port(ap); 912 sili_port_reset(ap, NULL, 1); 913 sili_os_unlock_port(ap); 914 ccbh->status = CAM_REQ_CMP; 915 xpt_done(ccb); 916 break; 917 case XPT_SET_TRAN_SETTINGS: 918 ccbh->status = CAM_FUNC_NOTAVAIL; 919 xpt_done(ccb); 920 break; 921 case XPT_GET_TRAN_SETTINGS: 922 ccb->cts.protocol = PROTO_SCSI; 923 ccb->cts.protocol_version = SCSI_REV_2; 924 ccb->cts.transport = XPORT_SATA; 925 ccb->cts.transport_version = XPORT_VERSION_UNSPECIFIED; 926 ccb->cts.proto_specific.valid = 0; 927 ccb->cts.xport_specific.valid = 0; 928 ccbh->status = CAM_REQ_CMP; 929 xpt_done(ccb); 930 break; 931 case XPT_CALC_GEOMETRY: 932 cam_calc_geometry(&ccb->ccg, 1); 933 xpt_done(ccb); 934 break; 935 case XPT_SCSI_IO: 936 /* 937 * Our parallel startup code might have only probed through 938 * to the IDENT, so do the last step if necessary. 939 */ 940 if (at->at_probe == ATA_PROBE_NEED_IDENT) 941 sili_cam_probe(ap, atx); 942 if (at->at_probe != ATA_PROBE_GOOD) { 943 ccbh->status = CAM_DEV_NOT_THERE; 944 xpt_done(ccb); 945 break; 946 } 947 switch(at->at_type) { 948 case ATA_PORT_T_DISK: 949 sili_xpt_scsi_disk_io(ap, atx, ccb); 950 break; 951 case ATA_PORT_T_ATAPI: 952 sili_xpt_scsi_atapi_io(ap, atx, ccb); 953 break; 954 default: 955 ccbh->status = CAM_REQ_INVALID; 956 xpt_done(ccb); 957 break; 958 } 959 break; 960 default: 961 ccbh->status = CAM_REQ_INVALID; 962 xpt_done(ccb); 963 break; 964 } 965 } 966 967 /* 968 * Poll function. 969 * 970 * Generally this function gets called heavily when interrupts might be 971 * non-operational, during a halt/reboot or panic. 972 */ 973 static 974 void 975 sili_xpt_poll(struct cam_sim *sim) 976 { 977 struct sili_port *ap; 978 979 ap = cam_sim_softc(sim); 980 crit_enter(); 981 sili_os_lock_port(ap); 982 sili_port_intr(ap, 1); 983 sili_os_unlock_port(ap); 984 crit_exit(); 985 } 986 987 /* 988 * Convert the SCSI command in ccb to an ata_xfer command in xa 989 * for ATA_PORT_T_DISK operations. Set the completion function 990 * to convert the response back, then dispatch to the OpenBSD SILI 991 * layer. 992 * 993 * SILI DISK commands only support a limited command set, and we 994 * fake additional commands to make it play nice with the CAM subsystem. 995 */ 996 static 997 void 998 sili_xpt_scsi_disk_io(struct sili_port *ap, struct ata_port *atx, 999 union ccb *ccb) 1000 { 1001 struct ccb_hdr *ccbh; 1002 struct ccb_scsiio *csio; 1003 struct ata_xfer *xa; 1004 struct ata_port *at; 1005 struct ata_fis_h2d *fis; 1006 struct ata_pass_12 *atp12; 1007 struct ata_pass_16 *atp16; 1008 scsi_cdb_t cdb; 1009 union scsi_data *rdata; 1010 int rdata_len; 1011 u_int64_t capacity; 1012 u_int64_t lba; 1013 u_int32_t count; 1014 1015 ccbh = &ccb->csio.ccb_h; 1016 csio = &ccb->csio; 1017 at = atx ? atx : &ap->ap_ata[0]; 1018 1019 /* 1020 * XXX not passing NULL at for direct attach! 1021 */ 1022 xa = sili_ata_get_xfer(ap, atx); 1023 rdata = (void *)csio->data_ptr; 1024 rdata_len = csio->dxfer_len; 1025 1026 /* 1027 * Build the FIS or process the csio to completion. 1028 */ 1029 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1030 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1031 1032 switch(cdb->generic.opcode) { 1033 case REQUEST_SENSE: 1034 /* 1035 * Auto-sense everything, so explicit sense requests 1036 * return no-sense. 1037 */ 1038 ccbh->status = CAM_SCSI_STATUS_ERROR; 1039 break; 1040 case INQUIRY: 1041 /* 1042 * Inquiry supported features 1043 * 1044 * [opcode, byte2, page_code, length, control] 1045 */ 1046 if (cdb->inquiry.byte2 & SI_EVPD) { 1047 sili_xpt_page_inquiry(ap, at, ccb); 1048 } else { 1049 bzero(rdata, rdata_len); 1050 if (rdata_len < SHORT_INQUIRY_LENGTH) { 1051 ccbh->status = CAM_CCB_LEN_ERR; 1052 break; 1053 } 1054 if (rdata_len > sizeof(rdata->inquiry_data)) 1055 rdata_len = sizeof(rdata->inquiry_data); 1056 rdata->inquiry_data.device = T_DIRECT; 1057 rdata->inquiry_data.version = SCSI_REV_SPC2; 1058 rdata->inquiry_data.response_format = 2; 1059 rdata->inquiry_data.additional_length = 32; 1060 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 1061 bcopy(at->at_identify.model, 1062 rdata->inquiry_data.product, 1063 sizeof(rdata->inquiry_data.product)); 1064 bcopy(at->at_identify.firmware, 1065 rdata->inquiry_data.revision, 1066 sizeof(rdata->inquiry_data.revision)); 1067 ccbh->status = CAM_REQ_CMP; 1068 } 1069 break; 1070 case READ_CAPACITY_16: 1071 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 1072 ccbh->status = CAM_REQ_INVALID; 1073 break; 1074 } 1075 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1076 ccbh->status = CAM_CCB_LEN_ERR; 1077 break; 1078 } 1079 /* fall through */ 1080 case READ_CAPACITY: 1081 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1082 ccbh->status = CAM_CCB_LEN_ERR; 1083 break; 1084 } 1085 1086 capacity = at->at_capacity; 1087 1088 bzero(rdata, rdata_len); 1089 if (cdb->generic.opcode == READ_CAPACITY) { 1090 rdata_len = sizeof(rdata->read_capacity_data); 1091 if (capacity > 0xFFFFFFFFU) 1092 capacity = 0xFFFFFFFFU; 1093 bzero(&rdata->read_capacity_data, rdata_len); 1094 scsi_ulto4b((u_int32_t)capacity - 1, 1095 rdata->read_capacity_data.addr); 1096 scsi_ulto4b(512, rdata->read_capacity_data.length); 1097 } else { 1098 rdata_len = sizeof(rdata->read_capacity_data_16); 1099 bzero(&rdata->read_capacity_data_16, rdata_len); 1100 scsi_u64to8b(capacity - 1, 1101 rdata->read_capacity_data_16.addr); 1102 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1103 } 1104 ccbh->status = CAM_REQ_CMP; 1105 break; 1106 case SYNCHRONIZE_CACHE: 1107 /* 1108 * Synchronize cache. Specification says this can take 1109 * greater then 30 seconds so give it at least 45. 1110 */ 1111 fis = xa->fis; 1112 fis->flags = ATA_H2D_FLAGS_CMD; 1113 fis->command = ATA_C_FLUSH_CACHE; 1114 fis->device = 0; 1115 if (xa->timeout < 45000) 1116 xa->timeout = 45000; 1117 xa->datalen = 0; 1118 xa->flags = ATA_F_READ; 1119 xa->complete = sili_ata_complete_disk_synchronize_cache; 1120 break; 1121 case TEST_UNIT_READY: 1122 case START_STOP_UNIT: 1123 case PREVENT_ALLOW: 1124 /* 1125 * Just silently return success 1126 */ 1127 ccbh->status = CAM_REQ_CMP; 1128 rdata_len = 0; 1129 break; 1130 case ATA_PASS_12: 1131 atp12 = &cdb->ata_pass_12; 1132 fis = xa->fis; 1133 /* 1134 * Figure out the flags to be used, depending on the 1135 * direction of the CAM request. 1136 */ 1137 switch (ccbh->flags & CAM_DIR_MASK) { 1138 case CAM_DIR_IN: 1139 xa->flags = ATA_F_READ; 1140 break; 1141 case CAM_DIR_OUT: 1142 xa->flags = ATA_F_WRITE; 1143 break; 1144 default: 1145 xa->flags = 0; 1146 } 1147 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1148 xa->data = csio->data_ptr; 1149 xa->datalen = csio->dxfer_len; 1150 xa->complete = sili_ata_complete_disk_rw; 1151 xa->timeout = ccbh->timeout; 1152 1153 /* 1154 * Populate the fis from the information we received through CAM 1155 * ATA passthrough. 1156 */ 1157 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp12->flags ? */ 1158 fis->features = atp12->features; 1159 fis->sector_count = atp12->sector_count; 1160 fis->lba_low = atp12->lba_low; 1161 fis->lba_mid = atp12->lba_mid; 1162 fis->lba_high = atp12->lba_high; 1163 fis->device = atp12->device; /* maybe always 0? */ 1164 fis->command = atp12->command; 1165 fis->control = atp12->control; 1166 1167 /* 1168 * Mark as in progress so it is sent to the device. 1169 */ 1170 ccbh->status = CAM_REQ_INPROG; 1171 break; 1172 case ATA_PASS_16: 1173 atp16 = &cdb->ata_pass_16; 1174 fis = xa->fis; 1175 /* 1176 * Figure out the flags to be used, depending on the direction of the 1177 * CAM request. 1178 */ 1179 switch (ccbh->flags & CAM_DIR_MASK) { 1180 case CAM_DIR_IN: 1181 xa->flags = ATA_F_READ; 1182 break; 1183 case CAM_DIR_OUT: 1184 xa->flags = ATA_F_WRITE; 1185 break; 1186 default: 1187 xa->flags = 0; 1188 } 1189 xa->flags |= ATA_F_POLL | ATA_F_EXCLUSIVE; 1190 xa->data = csio->data_ptr; 1191 xa->datalen = csio->dxfer_len; 1192 xa->complete = sili_ata_complete_disk_rw; 1193 xa->timeout = ccbh->timeout; 1194 1195 /* 1196 * Populate the fis from the information we received through CAM 1197 * ATA passthrough. 1198 */ 1199 fis->flags = ATA_H2D_FLAGS_CMD; /* maybe also atp16->flags ? */ 1200 fis->features = atp16->features; 1201 fis->features_exp = atp16->features_ext; 1202 fis->sector_count = atp16->sector_count; 1203 fis->sector_count_exp = atp16->sector_count_ext; 1204 fis->lba_low = atp16->lba_low; 1205 fis->lba_low_exp = atp16->lba_low_ext; 1206 fis->lba_mid = atp16->lba_mid; 1207 fis->lba_mid_exp = atp16->lba_mid_ext; 1208 fis->lba_high = atp16->lba_high; 1209 fis->lba_mid_exp = atp16->lba_mid_ext; 1210 fis->device = atp16->device; /* maybe always 0? */ 1211 fis->command = atp16->command; 1212 1213 /* 1214 * Mark as in progress so it is sent to the device. 1215 */ 1216 ccbh->status = CAM_REQ_INPROG; 1217 break; 1218 default: 1219 switch(cdb->generic.opcode) { 1220 case READ_6: 1221 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1222 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1223 xa->flags = ATA_F_READ; 1224 break; 1225 case READ_10: 1226 lba = scsi_4btoul(cdb->rw_10.addr); 1227 count = scsi_2btoul(cdb->rw_10.length); 1228 xa->flags = ATA_F_READ; 1229 break; 1230 case READ_12: 1231 lba = scsi_4btoul(cdb->rw_12.addr); 1232 count = scsi_4btoul(cdb->rw_12.length); 1233 xa->flags = ATA_F_READ; 1234 break; 1235 case READ_16: 1236 lba = scsi_8btou64(cdb->rw_16.addr); 1237 count = scsi_4btoul(cdb->rw_16.length); 1238 xa->flags = ATA_F_READ; 1239 break; 1240 case WRITE_6: 1241 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1242 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1243 xa->flags = ATA_F_WRITE; 1244 break; 1245 case WRITE_10: 1246 lba = scsi_4btoul(cdb->rw_10.addr); 1247 count = scsi_2btoul(cdb->rw_10.length); 1248 xa->flags = ATA_F_WRITE; 1249 break; 1250 case WRITE_12: 1251 lba = scsi_4btoul(cdb->rw_12.addr); 1252 count = scsi_4btoul(cdb->rw_12.length); 1253 xa->flags = ATA_F_WRITE; 1254 break; 1255 case WRITE_16: 1256 lba = scsi_8btou64(cdb->rw_16.addr); 1257 count = scsi_4btoul(cdb->rw_16.length); 1258 xa->flags = ATA_F_WRITE; 1259 break; 1260 default: 1261 ccbh->status = CAM_REQ_INVALID; 1262 break; 1263 } 1264 if (ccbh->status != CAM_REQ_INPROG) 1265 break; 1266 1267 fis = xa->fis; 1268 fis->flags = ATA_H2D_FLAGS_CMD; 1269 fis->lba_low = (u_int8_t)lba; 1270 fis->lba_mid = (u_int8_t)(lba >> 8); 1271 fis->lba_high = (u_int8_t)(lba >> 16); 1272 fis->device = ATA_H2D_DEVICE_LBA; 1273 1274 /* 1275 * NCQ only for direct-attached disks, do not currently 1276 * try to use NCQ with port multipliers. 1277 * 1278 * XXX fixme SII chip can do NCQ w/ port multipliers. 1279 */ 1280 if (at->at_ncqdepth > 1 && 1281 at->at_type == ATA_PORT_T_DISK && 1282 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1283 (ccbh->flags & CAM_POLLED) == 0) { 1284 /* 1285 * Use NCQ - always uses 48 bit addressing 1286 */ 1287 xa->flags |= ATA_F_NCQ; 1288 fis->command = (xa->flags & ATA_F_WRITE) ? 1289 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1290 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1291 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1292 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1293 fis->sector_count = xa->tag << 3; 1294 fis->features = (u_int8_t)count; 1295 fis->features_exp = (u_int8_t)(count >> 8); 1296 } else if (count > 0x100 || lba > 0x0FFFFFFFU) { 1297 /* 1298 * Use LBA48 1299 */ 1300 fis->command = (xa->flags & ATA_F_WRITE) ? 1301 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1302 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1303 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1304 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1305 fis->sector_count = (u_int8_t)count; 1306 fis->sector_count_exp = (u_int8_t)(count >> 8); 1307 } else { 1308 /* 1309 * Use LBA 1310 * 1311 * NOTE: 256 sectors is supported, stored as 0. 1312 */ 1313 fis->command = (xa->flags & ATA_F_WRITE) ? 1314 ATA_C_WRITEDMA : ATA_C_READDMA; 1315 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1316 fis->sector_count = (u_int8_t)count; 1317 } 1318 1319 xa->data = csio->data_ptr; 1320 xa->datalen = csio->dxfer_len; 1321 xa->complete = sili_ata_complete_disk_rw; 1322 xa->timeout = ccbh->timeout; /* milliseconds */ 1323 if (ccbh->flags & CAM_POLLED) 1324 xa->flags |= ATA_F_POLL; 1325 break; 1326 } 1327 1328 /* 1329 * If the request is still in progress the xa and FIS have 1330 * been set up (except for the PM target), and must be dispatched. 1331 * Otherwise the request was completed. 1332 */ 1333 if (ccbh->status == CAM_REQ_INPROG) { 1334 KKASSERT(xa->complete != NULL); 1335 xa->atascsi_private = ccb; 1336 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1337 sili_os_lock_port(ap); 1338 xa->fis->flags |= at->at_target; 1339 sili_ata_cmd(xa); 1340 sili_os_unlock_port(ap); 1341 } else { 1342 sili_ata_put_xfer(xa); 1343 xpt_done(ccb); 1344 } 1345 } 1346 1347 /* 1348 * Convert the SCSI command in ccb to an ata_xfer command in xa 1349 * for ATA_PORT_T_ATAPI operations. Set the completion function 1350 * to convert the response back, then dispatch to the OpenBSD SILI 1351 * layer. 1352 */ 1353 static 1354 void 1355 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1356 union ccb *ccb) 1357 { 1358 struct ccb_hdr *ccbh; 1359 struct ccb_scsiio *csio; 1360 struct ata_xfer *xa; 1361 struct ata_fis_h2d *fis; 1362 scsi_cdb_t cdbs; 1363 scsi_cdb_t cdbd; 1364 int flags; 1365 struct ata_port *at; 1366 1367 ccbh = &ccb->csio.ccb_h; 1368 csio = &ccb->csio; 1369 at = atx ? atx : &ap->ap_ata[0]; 1370 1371 switch (ccbh->flags & CAM_DIR_MASK) { 1372 case CAM_DIR_IN: 1373 flags = ATA_F_PACKET | ATA_F_READ; 1374 break; 1375 case CAM_DIR_OUT: 1376 flags = ATA_F_PACKET | ATA_F_WRITE; 1377 break; 1378 case CAM_DIR_NONE: 1379 flags = ATA_F_PACKET; 1380 break; 1381 default: 1382 ccbh->status = CAM_REQ_INVALID; 1383 xpt_done(ccb); 1384 return; 1385 /* NOT REACHED */ 1386 } 1387 1388 /* 1389 * Special handling to get the rfis back into host memory while 1390 * still allowing the chip to run commands in parallel to 1391 * ATAPI devices behind a PM. 1392 */ 1393 flags |= ATA_F_AUTOSENSE; 1394 1395 /* 1396 * The command has to fit in the packet command buffer. 1397 */ 1398 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1399 ccbh->status = CAM_CCB_LEN_ERR; 1400 xpt_done(ccb); 1401 return; 1402 } 1403 1404 /* 1405 * Initialize the XA and FIS. It is unclear how much of 1406 * this has to mimic the equivalent ATA command. 1407 * 1408 * XXX not passing NULL at for direct attach! 1409 */ 1410 xa = sili_ata_get_xfer(ap, atx); 1411 fis = xa->fis; 1412 1413 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1414 fis->command = ATA_C_PACKET; 1415 fis->device = ATA_H2D_DEVICE_LBA; 1416 fis->sector_count = xa->tag << 3; 1417 if (flags & (ATA_F_READ | ATA_F_WRITE)) { 1418 if (flags & ATA_F_WRITE) { 1419 fis->features = ATA_H2D_FEATURES_DMA | 1420 ATA_H2D_FEATURES_DIR_WRITE; 1421 } else { 1422 fis->features = ATA_H2D_FEATURES_DMA | 1423 ATA_H2D_FEATURES_DIR_READ; 1424 } 1425 } else { 1426 fis->lba_mid = 0; 1427 fis->lba_high = 0; 1428 } 1429 fis->control = ATA_FIS_CONTROL_4BIT; 1430 1431 xa->flags = flags; 1432 xa->data = csio->data_ptr; 1433 xa->datalen = csio->dxfer_len; 1434 xa->timeout = ccbh->timeout; /* milliseconds */ 1435 1436 if (ccbh->flags & CAM_POLLED) 1437 xa->flags |= ATA_F_POLL; 1438 1439 /* 1440 * Copy the cdb to the packetcmd buffer in the FIS using a 1441 * convenient pointer in the xa. 1442 */ 1443 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1444 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1445 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1446 1447 #if 0 1448 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1449 cdbs->generic.opcode, 1450 csio->cdb_len, csio->dxfer_len); 1451 #endif 1452 1453 /* 1454 * Some ATAPI commands do not actually follow the SCSI standard. 1455 */ 1456 cdbd = (void *)xa->packetcmd; 1457 1458 switch(cdbd->generic.opcode) { 1459 case REQUEST_SENSE: 1460 /* 1461 * Force SENSE requests to the ATAPI sense length. 1462 * 1463 * It is unclear if this is needed or not. 1464 */ 1465 if (cdbd->sense.length == SSD_FULL_SIZE) { 1466 kprintf("%s: Shortening sense request\n", 1467 PORTNAME(ap)); 1468 cdbd->sense.length = offsetof(struct scsi_sense_data, 1469 extra_bytes[0]); 1470 } 1471 break; 1472 case INQUIRY: 1473 /* 1474 * Some ATAPI devices can't handle long inquiry lengths, 1475 * don't ask me why. Truncate the inquiry length. 1476 */ 1477 if (cdbd->inquiry.page_code == 0 && 1478 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1479 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1480 } 1481 break; 1482 case READ_6: 1483 case WRITE_6: 1484 /* 1485 * Convert *_6 to *_10 commands. Most ATAPI devices 1486 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1487 */ 1488 cdbd->rw_10.opcode |= 0x20; 1489 cdbd->rw_10.byte2 = 0; 1490 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1491 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1492 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1493 cdbd->rw_10.addr[3] = 0; 1494 cdbd->rw_10.reserved = 0; 1495 cdbd->rw_10.length[0] = 0; 1496 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1497 cdbd->rw_10.control = cdbs->rw_6.control; 1498 break; 1499 default: 1500 break; 1501 } 1502 1503 /* 1504 * And dispatch 1505 */ 1506 xa->complete = sili_atapi_complete_cmd; 1507 xa->atascsi_private = ccb; 1508 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1509 sili_os_lock_port(ap); 1510 sili_ata_cmd(xa); 1511 sili_os_unlock_port(ap); 1512 } 1513 1514 /* 1515 * Simulate page inquiries for disk attachments. 1516 */ 1517 static 1518 void 1519 sili_xpt_page_inquiry(struct sili_port *ap, struct ata_port *at, union ccb *ccb) 1520 { 1521 union { 1522 struct scsi_vpd_supported_page_list list; 1523 struct scsi_vpd_unit_serial_number serno; 1524 struct scsi_vpd_unit_devid devid; 1525 char buf[256]; 1526 } *page; 1527 scsi_cdb_t cdb; 1528 int i; 1529 int j; 1530 int len; 1531 1532 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO); 1533 1534 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1535 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1536 1537 switch(cdb->inquiry.page_code) { 1538 case SVPD_SUPPORTED_PAGE_LIST: 1539 i = 0; 1540 page->list.device = T_DIRECT; 1541 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST; 1542 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST; 1543 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER; 1544 page->list.list[i++] = SVPD_UNIT_DEVID; 1545 page->list.length = i; 1546 len = offsetof(struct scsi_vpd_supported_page_list, list[3]); 1547 break; 1548 case SVPD_UNIT_SERIAL_NUMBER: 1549 i = 0; 1550 j = sizeof(at->at_identify.serial); 1551 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i) 1552 ; 1553 while (j > i && at->at_identify.serial[j-1] == ' ') 1554 --j; 1555 page->serno.device = T_DIRECT; 1556 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER; 1557 page->serno.length = j - i; 1558 bcopy(at->at_identify.serial + i, 1559 page->serno.serial_num, j - i); 1560 len = offsetof(struct scsi_vpd_unit_serial_number, 1561 serial_num[j-i]); 1562 break; 1563 case SVPD_UNIT_DEVID: 1564 /* fall through for now */ 1565 default: 1566 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1567 len = 0; 1568 break; 1569 } 1570 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1571 if (len <= ccb->csio.dxfer_len) { 1572 ccb->ccb_h.status = CAM_REQ_CMP; 1573 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len); 1574 bcopy(page, ccb->csio.data_ptr, len); 1575 ccb->csio.resid = ccb->csio.dxfer_len - len; 1576 } else { 1577 ccb->ccb_h.status = CAM_CCB_LEN_ERR; 1578 } 1579 } 1580 kfree(page, M_DEVBUF); 1581 } 1582 1583 /* 1584 * Completion function for ATA_PORT_T_DISK cache synchronization. 1585 */ 1586 static 1587 void 1588 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1589 { 1590 union ccb *ccb = xa->atascsi_private; 1591 struct ccb_hdr *ccbh = &ccb->ccb_h; 1592 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1593 1594 switch(xa->state) { 1595 case ATA_S_COMPLETE: 1596 ccbh->status = CAM_REQ_CMP; 1597 ccb->csio.scsi_status = SCSI_STATUS_OK; 1598 break; 1599 case ATA_S_ERROR: 1600 kprintf("%s: synchronize_cache: error\n", 1601 ATANAME(ap, xa->at)); 1602 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1603 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1604 sili_ata_dummy_sense(&ccb->csio.sense_data); 1605 break; 1606 case ATA_S_TIMEOUT: 1607 kprintf("%s: synchronize_cache: timeout\n", 1608 ATANAME(ap, xa->at)); 1609 ccbh->status = CAM_CMD_TIMEOUT; 1610 break; 1611 default: 1612 kprintf("%s: synchronize_cache: unknown state %d\n", 1613 ATANAME(ap, xa->at), xa->state); 1614 ccbh->status = CAM_REQ_CMP_ERR; 1615 break; 1616 } 1617 sili_ata_put_xfer(xa); 1618 sili_os_unlock_port(ap); 1619 xpt_done(ccb); 1620 sili_os_lock_port(ap); 1621 } 1622 1623 /* 1624 * Completion function for ATA_PORT_T_DISK I/O 1625 */ 1626 static 1627 void 1628 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1629 { 1630 union ccb *ccb = xa->atascsi_private; 1631 struct ccb_hdr *ccbh = &ccb->ccb_h; 1632 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1633 1634 switch(xa->state) { 1635 case ATA_S_COMPLETE: 1636 ccbh->status = CAM_REQ_CMP; 1637 ccb->csio.scsi_status = SCSI_STATUS_OK; 1638 break; 1639 case ATA_S_ERROR: 1640 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1641 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1642 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1643 sili_ata_dummy_sense(&ccb->csio.sense_data); 1644 break; 1645 case ATA_S_TIMEOUT: 1646 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1647 ccbh->status = CAM_CMD_TIMEOUT; 1648 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1649 sili_ata_dummy_sense(&ccb->csio.sense_data); 1650 break; 1651 default: 1652 kprintf("%s: disk_rw: unknown state %d\n", 1653 ATANAME(ap, xa->at), xa->state); 1654 ccbh->status = CAM_REQ_CMP_ERR; 1655 break; 1656 } 1657 ccb->csio.resid = xa->resid; 1658 sili_ata_put_xfer(xa); 1659 sili_os_unlock_port(ap); 1660 xpt_done(ccb); 1661 sili_os_lock_port(ap); 1662 } 1663 1664 /* 1665 * Completion function for ATA_PORT_T_ATAPI I/O 1666 * 1667 * Sense data is returned in the rfis. 1668 */ 1669 static 1670 void 1671 sili_atapi_complete_cmd(struct ata_xfer *xa) 1672 { 1673 union ccb *ccb = xa->atascsi_private; 1674 struct ccb_hdr *ccbh = &ccb->ccb_h; 1675 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1676 scsi_cdb_t cdb; 1677 1678 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1679 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1680 1681 switch(xa->state) { 1682 case ATA_S_COMPLETE: 1683 ccbh->status = CAM_REQ_CMP; 1684 ccb->csio.scsi_status = SCSI_STATUS_OK; 1685 break; 1686 case ATA_S_ERROR: 1687 ccbh->status = CAM_SCSI_STATUS_ERROR; 1688 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1689 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1690 break; 1691 case ATA_S_TIMEOUT: 1692 kprintf("%s: cmd %d: timeout\n", 1693 PORTNAME(ap), cdb->generic.opcode); 1694 ccbh->status = CAM_CMD_TIMEOUT; 1695 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1696 sili_ata_dummy_sense(&ccb->csio.sense_data); 1697 break; 1698 default: 1699 kprintf("%s: cmd %d: unknown state %d\n", 1700 PORTNAME(ap), cdb->generic.opcode, xa->state); 1701 ccbh->status = CAM_REQ_CMP_ERR; 1702 break; 1703 } 1704 ccb->csio.resid = xa->resid; 1705 sili_ata_put_xfer(xa); 1706 sili_os_unlock_port(ap); 1707 xpt_done(ccb); 1708 sili_os_lock_port(ap); 1709 } 1710 1711 /* 1712 * Construct dummy sense data for errors on DISKs 1713 */ 1714 static 1715 void 1716 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1717 { 1718 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1719 sense_data->segment = 0; 1720 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1721 sense_data->info[0] = 0; 1722 sense_data->info[1] = 0; 1723 sense_data->info[2] = 0; 1724 sense_data->info[3] = 0; 1725 sense_data->extra_len = 0; 1726 } 1727 1728 /* 1729 * Construct atapi sense data for errors on ATAPI 1730 * 1731 * The ATAPI sense data is stored in the passed rfis and must be converted 1732 * to SCSI sense data. 1733 */ 1734 static 1735 void 1736 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1737 struct scsi_sense_data *sense_data) 1738 { 1739 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1740 sense_data->segment = 0; 1741 sense_data->flags = (rfis->error & 0xF0) >> 4; 1742 if (rfis->error & 0x04) 1743 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1744 if (rfis->error & 0x02) 1745 sense_data->flags |= SSD_EOM; 1746 if (rfis->error & 0x01) 1747 sense_data->flags |= SSD_ILI; 1748 sense_data->info[0] = 0; 1749 sense_data->info[1] = 0; 1750 sense_data->info[2] = 0; 1751 sense_data->info[3] = 0; 1752 sense_data->extra_len = 0; 1753 } 1754 1755 static 1756 void 1757 sili_strip_string(const char **basep, int *lenp) 1758 { 1759 const char *base = *basep; 1760 int len = *lenp; 1761 1762 while (len && (*base == 0 || *base == ' ')) { 1763 --len; 1764 ++base; 1765 } 1766 while (len && (base[len-1] == 0 || base[len-1] == ' ')) 1767 --len; 1768 *basep = base; 1769 *lenp = len; 1770 } 1771