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 scsi_cdb_t cdb; 935 union scsi_data *rdata; 936 int rdata_len; 937 u_int64_t capacity; 938 u_int64_t lba; 939 u_int32_t count; 940 941 ccbh = &ccb->csio.ccb_h; 942 csio = &ccb->csio; 943 at = atx ? atx : &ap->ap_ata[0]; 944 945 /* 946 * XXX not passing NULL at for direct attach! 947 */ 948 xa = sili_ata_get_xfer(ap, atx); 949 rdata = (void *)csio->data_ptr; 950 rdata_len = csio->dxfer_len; 951 952 /* 953 * Build the FIS or process the csio to completion. 954 */ 955 cdb = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 956 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 957 958 switch(cdb->generic.opcode) { 959 case REQUEST_SENSE: 960 /* 961 * Auto-sense everything, so explicit sense requests 962 * return no-sense. 963 */ 964 ccbh->status = CAM_SCSI_STATUS_ERROR; 965 break; 966 case INQUIRY: 967 /* 968 * Inquiry supported features 969 * 970 * [opcode, byte2, page_code, length, control] 971 */ 972 if (cdb->inquiry.byte2 & SI_EVPD) { 973 sili_xpt_page_inquiry(ap, at, ccb); 974 } else { 975 bzero(rdata, rdata_len); 976 if (rdata_len < SHORT_INQUIRY_LENGTH) { 977 ccbh->status = CAM_CCB_LEN_ERR; 978 break; 979 } 980 if (rdata_len > sizeof(rdata->inquiry_data)) 981 rdata_len = sizeof(rdata->inquiry_data); 982 rdata->inquiry_data.device = T_DIRECT; 983 rdata->inquiry_data.version = SCSI_REV_SPC2; 984 rdata->inquiry_data.response_format = 2; 985 rdata->inquiry_data.additional_length = 32; 986 bcopy("SATA ", rdata->inquiry_data.vendor, 8); 987 bcopy(at->at_identify.model, 988 rdata->inquiry_data.product, 989 sizeof(rdata->inquiry_data.product)); 990 bcopy(at->at_identify.firmware, 991 rdata->inquiry_data.revision, 992 sizeof(rdata->inquiry_data.revision)); 993 ccbh->status = CAM_REQ_CMP; 994 } 995 break; 996 case READ_CAPACITY_16: 997 if (cdb->read_capacity_16.service_action != SRC16_SERVICE_ACTION) { 998 ccbh->status = CAM_REQ_INVALID; 999 break; 1000 } 1001 if (rdata_len < sizeof(rdata->read_capacity_data_16)) { 1002 ccbh->status = CAM_CCB_LEN_ERR; 1003 break; 1004 } 1005 /* fall through */ 1006 case READ_CAPACITY: 1007 if (rdata_len < sizeof(rdata->read_capacity_data)) { 1008 ccbh->status = CAM_CCB_LEN_ERR; 1009 break; 1010 } 1011 1012 capacity = at->at_capacity; 1013 1014 bzero(rdata, rdata_len); 1015 if (cdb->generic.opcode == READ_CAPACITY) { 1016 rdata_len = sizeof(rdata->read_capacity_data); 1017 if (capacity > 0xFFFFFFFFU) 1018 capacity = 0xFFFFFFFFU; 1019 bzero(&rdata->read_capacity_data, rdata_len); 1020 scsi_ulto4b((u_int32_t)capacity - 1, 1021 rdata->read_capacity_data.addr); 1022 scsi_ulto4b(512, rdata->read_capacity_data.length); 1023 } else { 1024 rdata_len = sizeof(rdata->read_capacity_data_16); 1025 bzero(&rdata->read_capacity_data_16, rdata_len); 1026 scsi_u64to8b(capacity - 1, 1027 rdata->read_capacity_data_16.addr); 1028 scsi_ulto4b(512, rdata->read_capacity_data_16.length); 1029 } 1030 ccbh->status = CAM_REQ_CMP; 1031 break; 1032 case SYNCHRONIZE_CACHE: 1033 /* 1034 * Synchronize cache. Specification says this can take 1035 * greater then 30 seconds so give it at least 45. 1036 */ 1037 fis = xa->fis; 1038 fis->flags = ATA_H2D_FLAGS_CMD; 1039 fis->command = ATA_C_FLUSH_CACHE; 1040 fis->device = 0; 1041 if (xa->timeout < 45000) 1042 xa->timeout = 45000; 1043 xa->datalen = 0; 1044 xa->flags = ATA_F_READ; 1045 xa->complete = sili_ata_complete_disk_synchronize_cache; 1046 break; 1047 case TEST_UNIT_READY: 1048 case START_STOP_UNIT: 1049 case PREVENT_ALLOW: 1050 /* 1051 * Just silently return success 1052 */ 1053 ccbh->status = CAM_REQ_CMP; 1054 rdata_len = 0; 1055 break; 1056 case ATA_PASS_12: 1057 case ATA_PASS_16: 1058 /* 1059 * XXX implement pass-through 1060 */ 1061 ccbh->status = CAM_FUNC_NOTAVAIL; 1062 break; 1063 default: 1064 switch(cdb->generic.opcode) { 1065 case READ_6: 1066 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1067 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1068 xa->flags = ATA_F_READ; 1069 break; 1070 case READ_10: 1071 lba = scsi_4btoul(cdb->rw_10.addr); 1072 count = scsi_2btoul(cdb->rw_10.length); 1073 xa->flags = ATA_F_READ; 1074 break; 1075 case READ_12: 1076 lba = scsi_4btoul(cdb->rw_12.addr); 1077 count = scsi_4btoul(cdb->rw_12.length); 1078 xa->flags = ATA_F_READ; 1079 break; 1080 case READ_16: 1081 lba = scsi_8btou64(cdb->rw_16.addr); 1082 count = scsi_4btoul(cdb->rw_16.length); 1083 xa->flags = ATA_F_READ; 1084 break; 1085 case WRITE_6: 1086 lba = scsi_3btoul(cdb->rw_6.addr) & 0x1FFFFF; 1087 count = cdb->rw_6.length ? cdb->rw_6.length : 0x100; 1088 xa->flags = ATA_F_WRITE; 1089 break; 1090 case WRITE_10: 1091 lba = scsi_4btoul(cdb->rw_10.addr); 1092 count = scsi_2btoul(cdb->rw_10.length); 1093 xa->flags = ATA_F_WRITE; 1094 break; 1095 case WRITE_12: 1096 lba = scsi_4btoul(cdb->rw_12.addr); 1097 count = scsi_4btoul(cdb->rw_12.length); 1098 xa->flags = ATA_F_WRITE; 1099 break; 1100 case WRITE_16: 1101 lba = scsi_8btou64(cdb->rw_16.addr); 1102 count = scsi_4btoul(cdb->rw_16.length); 1103 xa->flags = ATA_F_WRITE; 1104 break; 1105 default: 1106 ccbh->status = CAM_REQ_INVALID; 1107 break; 1108 } 1109 if (ccbh->status != CAM_REQ_INPROG) 1110 break; 1111 1112 fis = xa->fis; 1113 fis->flags = ATA_H2D_FLAGS_CMD; 1114 fis->lba_low = (u_int8_t)lba; 1115 fis->lba_mid = (u_int8_t)(lba >> 8); 1116 fis->lba_high = (u_int8_t)(lba >> 16); 1117 fis->device = ATA_H2D_DEVICE_LBA; 1118 1119 /* 1120 * NCQ only for direct-attached disks, do not currently 1121 * try to use NCQ with port multipliers. 1122 * 1123 * XXX fixme SII chip can do NCQ w/ port multipliers. 1124 */ 1125 if (at->at_ncqdepth > 1 && 1126 at->at_type == ATA_PORT_T_DISK && 1127 (ap->ap_sc->sc_flags & SILI_F_NCQ) && 1128 (ccbh->flags & CAM_POLLED) == 0) { 1129 /* 1130 * Use NCQ - always uses 48 bit addressing 1131 */ 1132 xa->flags |= ATA_F_NCQ; 1133 fis->command = (xa->flags & ATA_F_WRITE) ? 1134 ATA_C_WRITE_FPDMA : ATA_C_READ_FPDMA; 1135 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1136 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1137 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1138 fis->sector_count = xa->tag << 3; 1139 fis->features = (u_int8_t)count; 1140 fis->features_exp = (u_int8_t)(count >> 8); 1141 } else if (count > 0x100 || lba > 0x0FFFFFFFU) { 1142 /* 1143 * Use LBA48 1144 */ 1145 fis->command = (xa->flags & ATA_F_WRITE) ? 1146 ATA_C_WRITEDMA_EXT : ATA_C_READDMA_EXT; 1147 fis->lba_low_exp = (u_int8_t)(lba >> 24); 1148 fis->lba_mid_exp = (u_int8_t)(lba >> 32); 1149 fis->lba_high_exp = (u_int8_t)(lba >> 40); 1150 fis->sector_count = (u_int8_t)count; 1151 fis->sector_count_exp = (u_int8_t)(count >> 8); 1152 } else { 1153 /* 1154 * Use LBA 1155 * 1156 * NOTE: 256 sectors is supported, stored as 0. 1157 */ 1158 fis->command = (xa->flags & ATA_F_WRITE) ? 1159 ATA_C_WRITEDMA : ATA_C_READDMA; 1160 fis->device |= (u_int8_t)(lba >> 24) & 0x0F; 1161 fis->sector_count = (u_int8_t)count; 1162 } 1163 1164 xa->data = csio->data_ptr; 1165 xa->datalen = csio->dxfer_len; 1166 xa->complete = sili_ata_complete_disk_rw; 1167 xa->timeout = ccbh->timeout; /* milliseconds */ 1168 if (ccbh->flags & CAM_POLLED) 1169 xa->flags |= ATA_F_POLL; 1170 break; 1171 } 1172 1173 /* 1174 * If the request is still in progress the xa and FIS have 1175 * been set up (except for the PM target), and must be dispatched. 1176 * Otherwise the request was completed. 1177 */ 1178 if (ccbh->status == CAM_REQ_INPROG) { 1179 KKASSERT(xa->complete != NULL); 1180 xa->atascsi_private = ccb; 1181 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1182 sili_os_lock_port(ap); 1183 xa->fis->flags |= at->at_target; 1184 sili_ata_cmd(xa); 1185 sili_os_unlock_port(ap); 1186 } else { 1187 sili_ata_put_xfer(xa); 1188 xpt_done(ccb); 1189 } 1190 } 1191 1192 /* 1193 * Convert the SCSI command in ccb to an ata_xfer command in xa 1194 * for ATA_PORT_T_ATAPI operations. Set the completion function 1195 * to convert the response back, then dispatch to the OpenBSD SILI 1196 * layer. 1197 */ 1198 static 1199 void 1200 sili_xpt_scsi_atapi_io(struct sili_port *ap, struct ata_port *atx, 1201 union ccb *ccb) 1202 { 1203 struct ccb_hdr *ccbh; 1204 struct ccb_scsiio *csio; 1205 struct ata_xfer *xa; 1206 struct ata_fis_h2d *fis; 1207 scsi_cdb_t cdbs; 1208 scsi_cdb_t cdbd; 1209 int flags; 1210 struct ata_port *at; 1211 1212 ccbh = &ccb->csio.ccb_h; 1213 csio = &ccb->csio; 1214 at = atx ? atx : &ap->ap_ata[0]; 1215 1216 switch (ccbh->flags & CAM_DIR_MASK) { 1217 case CAM_DIR_IN: 1218 flags = ATA_F_PACKET | ATA_F_READ; 1219 break; 1220 case CAM_DIR_OUT: 1221 flags = ATA_F_PACKET | ATA_F_WRITE; 1222 break; 1223 case CAM_DIR_NONE: 1224 flags = ATA_F_PACKET; 1225 break; 1226 default: 1227 ccbh->status = CAM_REQ_INVALID; 1228 xpt_done(ccb); 1229 return; 1230 /* NOT REACHED */ 1231 } 1232 1233 /* 1234 * Special handling to get the rfis back into host memory while 1235 * still allowing the chip to run commands in parallel to 1236 * ATAPI devices behind a PM. 1237 */ 1238 flags |= ATA_F_AUTOSENSE; 1239 1240 /* 1241 * The command has to fit in the packet command buffer. 1242 */ 1243 if (csio->cdb_len < 6 || csio->cdb_len > 16) { 1244 ccbh->status = CAM_CCB_LEN_ERR; 1245 xpt_done(ccb); 1246 return; 1247 } 1248 1249 /* 1250 * Initialize the XA and FIS. It is unclear how much of 1251 * this has to mimic the equivalent ATA command. 1252 * 1253 * XXX not passing NULL at for direct attach! 1254 */ 1255 xa = sili_ata_get_xfer(ap, atx); 1256 fis = xa->fis; 1257 1258 fis->flags = ATA_H2D_FLAGS_CMD | at->at_target; 1259 fis->command = ATA_C_PACKET; 1260 fis->device = ATA_H2D_DEVICE_LBA; 1261 fis->sector_count = xa->tag << 3; 1262 if (flags & (ATA_F_READ | ATA_F_WRITE)) { 1263 if (flags & ATA_F_WRITE) { 1264 fis->features = ATA_H2D_FEATURES_DMA | 1265 ATA_H2D_FEATURES_DIR_WRITE; 1266 } else { 1267 fis->features = ATA_H2D_FEATURES_DMA | 1268 ATA_H2D_FEATURES_DIR_READ; 1269 } 1270 } else { 1271 fis->lba_mid = 0; 1272 fis->lba_high = 0; 1273 } 1274 fis->control = ATA_FIS_CONTROL_4BIT; 1275 1276 xa->flags = flags; 1277 xa->data = csio->data_ptr; 1278 xa->datalen = csio->dxfer_len; 1279 xa->timeout = ccbh->timeout; /* milliseconds */ 1280 1281 if (ccbh->flags & CAM_POLLED) 1282 xa->flags |= ATA_F_POLL; 1283 1284 /* 1285 * Copy the cdb to the packetcmd buffer in the FIS using a 1286 * convenient pointer in the xa. 1287 */ 1288 cdbs = (void *)((ccbh->flags & CAM_CDB_POINTER) ? 1289 csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes); 1290 bcopy(cdbs, xa->packetcmd, csio->cdb_len); 1291 1292 #if 0 1293 kprintf("opcode %d cdb_len %d dxfer_len %d\n", 1294 cdbs->generic.opcode, 1295 csio->cdb_len, csio->dxfer_len); 1296 #endif 1297 1298 /* 1299 * Some ATAPI commands do not actually follow the SCSI standard. 1300 */ 1301 cdbd = (void *)xa->packetcmd; 1302 1303 switch(cdbd->generic.opcode) { 1304 case REQUEST_SENSE: 1305 /* 1306 * Force SENSE requests to the ATAPI sense length. 1307 * 1308 * It is unclear if this is needed or not. 1309 */ 1310 if (cdbd->sense.length == SSD_FULL_SIZE) { 1311 kprintf("%s: Shortening sense request\n", 1312 PORTNAME(ap)); 1313 cdbd->sense.length = offsetof(struct scsi_sense_data, 1314 extra_bytes[0]); 1315 } 1316 break; 1317 case INQUIRY: 1318 /* 1319 * Some ATAPI devices can't handle long inquiry lengths, 1320 * don't ask me why. Truncate the inquiry length. 1321 */ 1322 if (cdbd->inquiry.page_code == 0 && 1323 cdbd->inquiry.length > SHORT_INQUIRY_LENGTH) { 1324 cdbd->inquiry.length = SHORT_INQUIRY_LENGTH; 1325 } 1326 break; 1327 case READ_6: 1328 case WRITE_6: 1329 /* 1330 * Convert *_6 to *_10 commands. Most ATAPI devices 1331 * cannot handle the SCSI READ_6 and WRITE_6 commands. 1332 */ 1333 cdbd->rw_10.opcode |= 0x20; 1334 cdbd->rw_10.byte2 = 0; 1335 cdbd->rw_10.addr[0] = cdbs->rw_6.addr[0] & 0x1F; 1336 cdbd->rw_10.addr[1] = cdbs->rw_6.addr[1]; 1337 cdbd->rw_10.addr[2] = cdbs->rw_6.addr[2]; 1338 cdbd->rw_10.addr[3] = 0; 1339 cdbd->rw_10.reserved = 0; 1340 cdbd->rw_10.length[0] = 0; 1341 cdbd->rw_10.length[1] = cdbs->rw_6.length; 1342 cdbd->rw_10.control = cdbs->rw_6.control; 1343 break; 1344 default: 1345 break; 1346 } 1347 1348 /* 1349 * And dispatch 1350 */ 1351 xa->complete = sili_atapi_complete_cmd; 1352 xa->atascsi_private = ccb; 1353 ccb->ccb_h.sim_priv.entries[0].ptr = ap; 1354 sili_os_lock_port(ap); 1355 sili_ata_cmd(xa); 1356 sili_os_unlock_port(ap); 1357 } 1358 1359 /* 1360 * Simulate page inquiries for disk attachments. 1361 */ 1362 static 1363 void 1364 sili_xpt_page_inquiry(struct sili_port *ap, struct ata_port *at, union ccb *ccb) 1365 { 1366 union { 1367 struct scsi_vpd_supported_page_list list; 1368 struct scsi_vpd_unit_serial_number serno; 1369 struct scsi_vpd_unit_devid devid; 1370 char buf[256]; 1371 } *page; 1372 scsi_cdb_t cdb; 1373 int i; 1374 int j; 1375 int len; 1376 1377 page = kmalloc(sizeof(*page), M_DEVBUF, M_WAITOK | M_ZERO); 1378 1379 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1380 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1381 1382 switch(cdb->inquiry.page_code) { 1383 case SVPD_SUPPORTED_PAGE_LIST: 1384 i = 0; 1385 page->list.device = T_DIRECT; 1386 page->list.page_code = SVPD_SUPPORTED_PAGE_LIST; 1387 page->list.list[i++] = SVPD_SUPPORTED_PAGE_LIST; 1388 page->list.list[i++] = SVPD_UNIT_SERIAL_NUMBER; 1389 page->list.list[i++] = SVPD_UNIT_DEVID; 1390 page->list.length = i; 1391 len = offsetof(struct scsi_vpd_supported_page_list, list[3]); 1392 break; 1393 case SVPD_UNIT_SERIAL_NUMBER: 1394 i = 0; 1395 j = sizeof(at->at_identify.serial); 1396 for (i = 0; i < j && at->at_identify.serial[i] == ' '; ++i) 1397 ; 1398 while (j > i && at->at_identify.serial[j-1] == ' ') 1399 --j; 1400 page->serno.device = T_DIRECT; 1401 page->serno.page_code = SVPD_UNIT_SERIAL_NUMBER; 1402 page->serno.length = j - i; 1403 bcopy(at->at_identify.serial + i, 1404 page->serno.serial_num, j - i); 1405 len = offsetof(struct scsi_vpd_unit_serial_number, 1406 serial_num[j-i]); 1407 break; 1408 case SVPD_UNIT_DEVID: 1409 /* fall through for now */ 1410 default: 1411 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 1412 len = 0; 1413 break; 1414 } 1415 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1416 if (len <= ccb->csio.dxfer_len) { 1417 ccb->ccb_h.status = CAM_REQ_CMP; 1418 bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len); 1419 bcopy(page, ccb->csio.data_ptr, len); 1420 ccb->csio.resid = ccb->csio.dxfer_len - len; 1421 } else { 1422 ccb->ccb_h.status = CAM_CCB_LEN_ERR; 1423 } 1424 } 1425 kfree(page, M_DEVBUF); 1426 } 1427 1428 /* 1429 * Completion function for ATA_PORT_T_DISK cache synchronization. 1430 */ 1431 static 1432 void 1433 sili_ata_complete_disk_synchronize_cache(struct ata_xfer *xa) 1434 { 1435 union ccb *ccb = xa->atascsi_private; 1436 struct ccb_hdr *ccbh = &ccb->ccb_h; 1437 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1438 1439 switch(xa->state) { 1440 case ATA_S_COMPLETE: 1441 ccbh->status = CAM_REQ_CMP; 1442 ccb->csio.scsi_status = SCSI_STATUS_OK; 1443 break; 1444 case ATA_S_ERROR: 1445 kprintf("%s: synchronize_cache: error\n", 1446 ATANAME(ap, xa->at)); 1447 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1448 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1449 sili_ata_dummy_sense(&ccb->csio.sense_data); 1450 break; 1451 case ATA_S_TIMEOUT: 1452 kprintf("%s: synchronize_cache: timeout\n", 1453 ATANAME(ap, xa->at)); 1454 ccbh->status = CAM_CMD_TIMEOUT; 1455 break; 1456 default: 1457 kprintf("%s: synchronize_cache: unknown state %d\n", 1458 ATANAME(ap, xa->at), xa->state); 1459 ccbh->status = CAM_REQ_CMP_ERR; 1460 break; 1461 } 1462 sili_ata_put_xfer(xa); 1463 sili_os_unlock_port(ap); 1464 xpt_done(ccb); 1465 sili_os_lock_port(ap); 1466 } 1467 1468 /* 1469 * Completion function for ATA_PORT_T_DISK I/O 1470 */ 1471 static 1472 void 1473 sili_ata_complete_disk_rw(struct ata_xfer *xa) 1474 { 1475 union ccb *ccb = xa->atascsi_private; 1476 struct ccb_hdr *ccbh = &ccb->ccb_h; 1477 struct sili_port *ap = ccb->ccb_h.sim_priv.entries[0].ptr; 1478 1479 switch(xa->state) { 1480 case ATA_S_COMPLETE: 1481 ccbh->status = CAM_REQ_CMP; 1482 ccb->csio.scsi_status = SCSI_STATUS_OK; 1483 break; 1484 case ATA_S_ERROR: 1485 kprintf("%s: disk_rw: error\n", ATANAME(ap, xa->at)); 1486 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 1487 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1488 sili_ata_dummy_sense(&ccb->csio.sense_data); 1489 break; 1490 case ATA_S_TIMEOUT: 1491 kprintf("%s: disk_rw: timeout\n", ATANAME(ap, xa->at)); 1492 ccbh->status = CAM_CMD_TIMEOUT; 1493 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1494 sili_ata_dummy_sense(&ccb->csio.sense_data); 1495 break; 1496 default: 1497 kprintf("%s: disk_rw: unknown state %d\n", 1498 ATANAME(ap, xa->at), xa->state); 1499 ccbh->status = CAM_REQ_CMP_ERR; 1500 break; 1501 } 1502 ccb->csio.resid = xa->resid; 1503 sili_ata_put_xfer(xa); 1504 sili_os_unlock_port(ap); 1505 xpt_done(ccb); 1506 sili_os_lock_port(ap); 1507 } 1508 1509 /* 1510 * Completion function for ATA_PORT_T_ATAPI I/O 1511 * 1512 * Sense data is returned in the rfis. 1513 */ 1514 static 1515 void 1516 sili_atapi_complete_cmd(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 scsi_cdb_t cdb; 1522 1523 cdb = (void *)((ccb->ccb_h.flags & CAM_CDB_POINTER) ? 1524 ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes); 1525 1526 switch(xa->state) { 1527 case ATA_S_COMPLETE: 1528 ccbh->status = CAM_REQ_CMP; 1529 ccb->csio.scsi_status = SCSI_STATUS_OK; 1530 break; 1531 case ATA_S_ERROR: 1532 ccbh->status = CAM_SCSI_STATUS_ERROR; 1533 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1534 sili_ata_atapi_sense(xa->rfis, &ccb->csio.sense_data); 1535 break; 1536 case ATA_S_TIMEOUT: 1537 kprintf("%s: cmd %d: timeout\n", 1538 PORTNAME(ap), cdb->generic.opcode); 1539 ccbh->status = CAM_CMD_TIMEOUT; 1540 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND; 1541 sili_ata_dummy_sense(&ccb->csio.sense_data); 1542 break; 1543 default: 1544 kprintf("%s: cmd %d: unknown state %d\n", 1545 PORTNAME(ap), cdb->generic.opcode, xa->state); 1546 ccbh->status = CAM_REQ_CMP_ERR; 1547 break; 1548 } 1549 ccb->csio.resid = xa->resid; 1550 sili_ata_put_xfer(xa); 1551 sili_os_unlock_port(ap); 1552 xpt_done(ccb); 1553 sili_os_lock_port(ap); 1554 } 1555 1556 /* 1557 * Construct dummy sense data for errors on DISKs 1558 */ 1559 static 1560 void 1561 sili_ata_dummy_sense(struct scsi_sense_data *sense_data) 1562 { 1563 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1564 sense_data->segment = 0; 1565 sense_data->flags = SSD_KEY_MEDIUM_ERROR; 1566 sense_data->info[0] = 0; 1567 sense_data->info[1] = 0; 1568 sense_data->info[2] = 0; 1569 sense_data->info[3] = 0; 1570 sense_data->extra_len = 0; 1571 } 1572 1573 /* 1574 * Construct atapi sense data for errors on ATAPI 1575 * 1576 * The ATAPI sense data is stored in the passed rfis and must be converted 1577 * to SCSI sense data. 1578 */ 1579 static 1580 void 1581 sili_ata_atapi_sense(struct ata_fis_d2h *rfis, 1582 struct scsi_sense_data *sense_data) 1583 { 1584 sense_data->error_code = SSD_ERRCODE_VALID | SSD_CURRENT_ERROR; 1585 sense_data->segment = 0; 1586 sense_data->flags = (rfis->error & 0xF0) >> 4; 1587 if (rfis->error & 0x04) 1588 sense_data->flags |= SSD_KEY_ILLEGAL_REQUEST; 1589 if (rfis->error & 0x02) 1590 sense_data->flags |= SSD_EOM; 1591 if (rfis->error & 0x01) 1592 sense_data->flags |= SSD_ILI; 1593 sense_data->info[0] = 0; 1594 sense_data->info[1] = 0; 1595 sense_data->info[2] = 0; 1596 sense_data->info[3] = 0; 1597 sense_data->extra_len = 0; 1598 } 1599 1600 static 1601 void 1602 sili_strip_string(const char **basep, int *lenp) 1603 { 1604 const char *base = *basep; 1605 int len = *lenp; 1606 1607 while (len && (*base == 0 || *base == ' ')) { 1608 --len; 1609 ++base; 1610 } 1611 while (len && (base[len-1] == 0 || base[len-1] == ' ')) 1612 --len; 1613 *basep = base; 1614 *lenp = len; 1615 } 1616