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