1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2003 Hidetoshi Shimokawa 5 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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 the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the acknowledgement as bellow: 18 * 19 * This product includes software developed by K. Kobayashi and H. Shimokawa 20 * 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 27 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 32 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/module.h> 41 #include <sys/bus.h> 42 #include <sys/kernel.h> 43 #include <sys/sysctl.h> 44 #include <machine/bus.h> 45 #include <sys/malloc.h> 46 #include <sys/lock.h> 47 #include <sys/mutex.h> 48 49 #include <cam/cam.h> 50 #include <cam/cam_ccb.h> 51 #include <cam/cam_sim.h> 52 #include <cam/cam_xpt_sim.h> 53 #include <cam/cam_debug.h> 54 #include <cam/cam_periph.h> 55 #include <cam/scsi/scsi_all.h> 56 57 #include <dev/firewire/firewire.h> 58 #include <dev/firewire/firewirereg.h> 59 #include <dev/firewire/fwdma.h> 60 #include <dev/firewire/iec13213.h> 61 #include <dev/firewire/sbp.h> 62 63 #define ccb_sdev_ptr spriv_ptr0 64 #define ccb_sbp_ptr spriv_ptr1 65 66 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 67 /* 68 * Scan_bus doesn't work for more than 8 LUNs 69 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 70 */ 71 #define SBP_NUM_LUNS 64 72 #define SBP_MAXPHYS (128 * 1024) 73 #define SBP_DMA_SIZE PAGE_SIZE 74 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 75 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 76 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 77 78 /* 79 * STATUS FIFO addressing 80 * bit 81 *----------------------- 82 * 0- 1( 2): 0 (alignment) 83 * 2- 7( 6): target 84 * 8-15( 8): lun 85 * 16-31( 8): reserved 86 * 32-47(16): SBP_BIND_HI 87 * 48-64(16): bus_id, node_id 88 */ 89 #define SBP_BIND_HI 0x1 90 #define SBP_DEV2ADDR(t, l) \ 91 (((u_int64_t)SBP_BIND_HI << 32) \ 92 | (((l) & 0xff) << 8) \ 93 | (((t) & 0x3f) << 2)) 94 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 95 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 96 #define SBP_INITIATOR 7 97 98 static char *orb_fun_name[] = { 99 ORB_FUN_NAMES 100 }; 101 102 static int debug = 0; 103 static int auto_login = 1; 104 static int max_speed = -1; 105 static int sbp_cold = 1; 106 static int ex_login = 1; 107 static int login_delay = 1000; /* msec */ 108 static int scan_delay = 500; /* msec */ 109 static int use_doorbell = 0; 110 static int sbp_tags = 0; 111 112 SYSCTL_DECL(_hw_firewire); 113 static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 114 "SBP-II Subsystem"); 115 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RWTUN, &debug, 0, 116 "SBP debug flag"); 117 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RWTUN, &auto_login, 0, 118 "SBP perform login automatically"); 119 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RWTUN, &max_speed, 0, 120 "SBP transfer max speed"); 121 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RWTUN, 122 &ex_login, 0, "SBP enable exclusive login"); 123 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RWTUN, 124 &login_delay, 0, "SBP login delay in msec"); 125 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RWTUN, 126 &scan_delay, 0, "SBP scan delay in msec"); 127 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RWTUN, 128 &use_doorbell, 0, "SBP use doorbell request"); 129 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RWTUN, &sbp_tags, 0, 130 "SBP tagged queuing support"); 131 132 #define NEED_RESPONSE 0 133 134 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 135 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 136 struct sbp_ocb { 137 STAILQ_ENTRY(sbp_ocb) ocb; 138 union ccb *ccb; 139 bus_addr_t bus_addr; 140 uint32_t orb[8]; 141 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 142 struct ind_ptr ind_ptr[SBP_IND_MAX]; 143 struct sbp_dev *sdev; 144 int flags; /* XXX should be removed */ 145 bus_dmamap_t dmamap; 146 struct callout timer; 147 }; 148 149 #define OCB_ACT_MGM 0 150 #define OCB_ACT_CMD 1 151 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 152 153 struct sbp_dev { 154 #define SBP_DEV_RESET 0 /* accept login */ 155 #define SBP_DEV_LOGIN 1 /* to login */ 156 #if 0 157 #define SBP_DEV_RECONN 2 /* to reconnect */ 158 #endif 159 #define SBP_DEV_TOATTACH 3 /* to attach */ 160 #define SBP_DEV_PROBE 4 /* scan lun */ 161 #define SBP_DEV_ATTACHED 5 /* in operation */ 162 #define SBP_DEV_DEAD 6 /* unavailable unit */ 163 #define SBP_DEV_RETRY 7 /* unavailable unit */ 164 uint8_t status:4, 165 timeout:4; 166 uint8_t type; 167 uint16_t lun_id; 168 uint16_t freeze; 169 #define ORB_LINK_DEAD (1 << 0) 170 #define VALID_LUN (1 << 1) 171 #define ORB_POINTER_ACTIVE (1 << 2) 172 #define ORB_POINTER_NEED (1 << 3) 173 #define ORB_DOORBELL_ACTIVE (1 << 4) 174 #define ORB_DOORBELL_NEED (1 << 5) 175 #define ORB_SHORTAGE (1 << 6) 176 uint16_t flags; 177 struct cam_path *path; 178 struct sbp_target *target; 179 struct fwdma_alloc dma; 180 struct sbp_login_res *login; 181 struct callout login_callout; 182 struct sbp_ocb *ocb; 183 STAILQ_HEAD(, sbp_ocb) ocbs; 184 STAILQ_HEAD(, sbp_ocb) free_ocbs; 185 struct sbp_ocb *last_ocb; 186 char vendor[32]; 187 char product[32]; 188 char revision[10]; 189 char bustgtlun[32]; 190 }; 191 192 struct sbp_target { 193 int target_id; 194 int num_lun; 195 struct sbp_dev **luns; 196 struct sbp_softc *sbp; 197 struct fw_device *fwdev; 198 uint32_t mgm_hi, mgm_lo; 199 struct sbp_ocb *mgm_ocb_cur; 200 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 201 struct callout mgm_ocb_timeout; 202 struct callout scan_callout; 203 STAILQ_HEAD(, fw_xfer) xferlist; 204 int n_xfer; 205 }; 206 207 struct sbp_softc { 208 struct firewire_dev_comm fd; 209 struct cam_sim *sim; 210 struct cam_path *path; 211 struct sbp_target targets[SBP_NUM_TARGETS]; 212 struct fw_bind fwb; 213 bus_dma_tag_t dmat; 214 struct timeval last_busreset; 215 #define SIMQ_FREEZED 1 216 int flags; 217 struct mtx mtx; 218 }; 219 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 220 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 221 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED) 222 223 static void sbp_post_explore (void *); 224 static void sbp_recv (struct fw_xfer *); 225 static void sbp_mgm_callback (struct fw_xfer *); 226 #if 0 227 static void sbp_cmd_callback (struct fw_xfer *); 228 #endif 229 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 230 static void sbp_doorbell(struct sbp_dev *); 231 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 232 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 233 static void sbp_abort_ocb (struct sbp_ocb *, int); 234 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 235 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 236 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 237 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 238 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 239 static void sbp_cam_detach_sdev(struct sbp_dev *); 240 static void sbp_free_sdev(struct sbp_dev *); 241 static void sbp_cam_detach_target (struct sbp_target *); 242 static void sbp_free_target (struct sbp_target *); 243 static void sbp_mgm_timeout (void *arg); 244 static void sbp_timeout (void *arg); 245 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 246 247 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 248 249 /* cam related functions */ 250 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 251 static void sbp_poll(struct cam_sim *sim); 252 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 253 static void sbp_cam_scan_target(void *arg); 254 255 static char *orb_status0[] = { 256 /* 0 */ "No additional information to report", 257 /* 1 */ "Request type not supported", 258 /* 2 */ "Speed not supported", 259 /* 3 */ "Page size not supported", 260 /* 4 */ "Access denied", 261 /* 5 */ "Logical unit not supported", 262 /* 6 */ "Maximum payload too small", 263 /* 7 */ "Reserved for future standardization", 264 /* 8 */ "Resources unavailable", 265 /* 9 */ "Function rejected", 266 /* A */ "Login ID not recognized", 267 /* B */ "Dummy ORB completed", 268 /* C */ "Request aborted", 269 /* FF */ "Unspecified error" 270 #define MAX_ORB_STATUS0 0xd 271 }; 272 273 static char *orb_status1_object[] = { 274 /* 0 */ "Operation request block (ORB)", 275 /* 1 */ "Data buffer", 276 /* 2 */ "Page table", 277 /* 3 */ "Unable to specify" 278 }; 279 280 static char *orb_status1_serial_bus_error[] = { 281 /* 0 */ "Missing acknowledge", 282 /* 1 */ "Reserved; not to be used", 283 /* 2 */ "Time-out error", 284 /* 3 */ "Reserved; not to be used", 285 /* 4 */ "Busy retry limit exceeded(X)", 286 /* 5 */ "Busy retry limit exceeded(A)", 287 /* 6 */ "Busy retry limit exceeded(B)", 288 /* 7 */ "Reserved for future standardization", 289 /* 8 */ "Reserved for future standardization", 290 /* 9 */ "Reserved for future standardization", 291 /* A */ "Reserved for future standardization", 292 /* B */ "Tardy retry limit exceeded", 293 /* C */ "Conflict error", 294 /* D */ "Data error", 295 /* E */ "Type error", 296 /* F */ "Address error" 297 }; 298 299 static void 300 sbp_identify(driver_t *driver, device_t parent) 301 { 302 SBP_DEBUG(0) 303 printf("sbp_identify\n"); 304 END_DEBUG 305 306 if (device_find_child(parent, "sbp", DEVICE_UNIT_ANY) == NULL) 307 BUS_ADD_CHILD(parent, 0, "sbp", DEVICE_UNIT_ANY); 308 } 309 310 /* 311 * sbp_probe() 312 */ 313 static int 314 sbp_probe(device_t dev) 315 { 316 317 SBP_DEBUG(0) 318 printf("sbp_probe\n"); 319 END_DEBUG 320 321 if (fw_get_unit(dev) != NULL) 322 return (ENXIO); 323 324 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 325 326 #if 0 327 if (bootverbose) 328 debug = bootverbose; 329 #endif 330 331 return (0); 332 } 333 334 /* 335 * Display device characteristics on the console 336 */ 337 static void 338 sbp_show_sdev_info(struct sbp_dev *sdev) 339 { 340 struct fw_device *fwdev; 341 342 fwdev = sdev->target->fwdev; 343 device_printf(sdev->target->sbp->fd.dev, 344 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 345 "speed:%d maxrec:%d\n", 346 __func__, 347 sdev->bustgtlun, 348 (sdev->type & 0x40) >> 6, 349 (sdev->type & 0x1f), 350 fwdev->eui.hi, 351 fwdev->eui.lo, 352 fwdev->dst, 353 fwdev->speed, 354 fwdev->maxrec); 355 356 device_printf(sdev->target->sbp->fd.dev, 357 "%s: %s '%s' '%s' '%s'\n", 358 __func__, 359 sdev->bustgtlun, 360 sdev->vendor, 361 sdev->product, 362 sdev->revision); 363 } 364 365 static struct { 366 int bus; 367 int target; 368 struct fw_eui64 eui; 369 } wired[] = { 370 /* Bus Target EUI64 */ 371 #if 0 372 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 373 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 374 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 375 #endif 376 {-1, -1, {0,0}} 377 }; 378 379 static int 380 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 381 { 382 int bus, i, target=-1; 383 char w[SBP_NUM_TARGETS]; 384 385 bzero(w, sizeof(w)); 386 bus = device_get_unit(sbp->fd.dev); 387 388 /* XXX wired-down configuration should be gotten from 389 tunable or device hint */ 390 for (i = 0; wired[i].bus >= 0; i++) { 391 if (wired[i].bus == bus) { 392 w[wired[i].target] = 1; 393 if (wired[i].eui.hi == fwdev->eui.hi && 394 wired[i].eui.lo == fwdev->eui.lo) 395 target = wired[i].target; 396 } 397 } 398 if (target >= 0) { 399 if (target < SBP_NUM_TARGETS && 400 sbp->targets[target].fwdev == NULL) 401 return (target); 402 device_printf(sbp->fd.dev, 403 "target %d is not free for %08x:%08x\n", 404 target, fwdev->eui.hi, fwdev->eui.lo); 405 target = -1; 406 } 407 /* non-wired target */ 408 for (i = 0; i < SBP_NUM_TARGETS; i++) 409 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 410 target = i; 411 break; 412 } 413 414 return target; 415 } 416 417 static void 418 sbp_alloc_lun(struct sbp_target *target) 419 { 420 struct crom_context cc; 421 struct csrreg *reg; 422 struct sbp_dev *sdev, **newluns; 423 struct sbp_softc *sbp; 424 int maxlun, lun, i; 425 426 sbp = target->sbp; 427 crom_init_context(&cc, target->fwdev->csrrom); 428 /* XXX shoud parse appropriate unit directories only */ 429 maxlun = -1; 430 while (cc.depth >= 0) { 431 reg = crom_search_key(&cc, CROM_LUN); 432 if (reg == NULL) 433 break; 434 lun = reg->val & 0xffff; 435 SBP_DEBUG(0) 436 printf("target %d lun %d found\n", target->target_id, lun); 437 END_DEBUG 438 if (maxlun < lun) 439 maxlun = lun; 440 crom_next(&cc); 441 } 442 if (maxlun < 0) 443 device_printf(target->sbp->fd.dev, "%d no LUN found\n", 444 target->target_id); 445 446 maxlun++; 447 if (maxlun >= SBP_NUM_LUNS) 448 maxlun = SBP_NUM_LUNS; 449 450 /* Invalidiate stale devices */ 451 for (lun = 0; lun < target->num_lun; lun++) { 452 sdev = target->luns[lun]; 453 if (sdev == NULL) 454 continue; 455 sdev->flags &= ~VALID_LUN; 456 if (lun >= maxlun) { 457 /* lost device */ 458 sbp_cam_detach_sdev(sdev); 459 sbp_free_sdev(sdev); 460 target->luns[lun] = NULL; 461 } 462 } 463 464 /* Reallocate */ 465 if (maxlun != target->num_lun) { 466 newluns = (struct sbp_dev **) realloc(target->luns, 467 sizeof(struct sbp_dev *) * maxlun, 468 M_SBP, M_NOWAIT | M_ZERO); 469 470 if (newluns == NULL) { 471 printf("%s: realloc failed\n", __func__); 472 newluns = target->luns; 473 maxlun = target->num_lun; 474 } 475 476 /* 477 * We must zero the extended region for the case 478 * realloc() doesn't allocate new buffer. 479 */ 480 if (maxlun > target->num_lun) 481 bzero(&newluns[target->num_lun], 482 sizeof(struct sbp_dev *) * 483 (maxlun - target->num_lun)); 484 485 target->luns = newluns; 486 target->num_lun = maxlun; 487 } 488 489 crom_init_context(&cc, target->fwdev->csrrom); 490 while (cc.depth >= 0) { 491 int new = 0; 492 493 reg = crom_search_key(&cc, CROM_LUN); 494 if (reg == NULL) 495 break; 496 lun = reg->val & 0xffff; 497 if (lun >= SBP_NUM_LUNS) { 498 printf("too large lun %d\n", lun); 499 goto next; 500 } 501 502 sdev = target->luns[lun]; 503 if (sdev == NULL) { 504 sdev = malloc(sizeof(struct sbp_dev), 505 M_SBP, M_NOWAIT | M_ZERO); 506 if (sdev == NULL) { 507 printf("%s: malloc failed\n", __func__); 508 goto next; 509 } 510 target->luns[lun] = sdev; 511 sdev->lun_id = lun; 512 sdev->target = target; 513 STAILQ_INIT(&sdev->ocbs); 514 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); 515 sdev->status = SBP_DEV_RESET; 516 new = 1; 517 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 518 device_get_nameunit(sdev->target->sbp->fd.dev), 519 sdev->target->target_id, 520 sdev->lun_id); 521 } 522 sdev->flags |= VALID_LUN; 523 sdev->type = (reg->val & 0xff0000) >> 16; 524 525 if (new == 0) 526 goto next; 527 528 fwdma_malloc(sbp->fd.fc, 529 /* alignment */ sizeof(uint32_t), 530 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 531 BUS_DMA_COHERENT); 532 if (sdev->dma.v_addr == NULL) { 533 printf("%s: dma space allocation failed\n", 534 __func__); 535 free(sdev, M_SBP); 536 target->luns[lun] = NULL; 537 goto next; 538 } 539 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 540 sdev->ocb = (struct sbp_ocb *) 541 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 542 bzero((char *)sdev->ocb, 543 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 544 545 STAILQ_INIT(&sdev->free_ocbs); 546 for (i = 0; i < SBP_QUEUE_LEN; i++) { 547 struct sbp_ocb *ocb; 548 ocb = &sdev->ocb[i]; 549 ocb->bus_addr = sdev->dma.bus_addr 550 + SBP_LOGIN_SIZE 551 + sizeof(struct sbp_ocb) * i 552 + offsetof(struct sbp_ocb, orb[0]); 553 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 554 printf("sbp_attach: cannot create dmamap\n"); 555 /* XXX */ 556 goto next; 557 } 558 callout_init_mtx(&ocb->timer, &sbp->mtx, 0); 559 SBP_LOCK(sbp); 560 sbp_free_ocb(sdev, ocb); 561 SBP_UNLOCK(sbp); 562 } 563 next: 564 crom_next(&cc); 565 } 566 567 for (lun = 0; lun < target->num_lun; lun++) { 568 sdev = target->luns[lun]; 569 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 570 sbp_cam_detach_sdev(sdev); 571 sbp_free_sdev(sdev); 572 target->luns[lun] = NULL; 573 } 574 } 575 } 576 577 static struct sbp_target * 578 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 579 { 580 int i; 581 struct sbp_target *target; 582 struct crom_context cc; 583 struct csrreg *reg; 584 585 SBP_DEBUG(1) 586 printf("sbp_alloc_target\n"); 587 END_DEBUG 588 i = sbp_new_target(sbp, fwdev); 589 if (i < 0) { 590 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 591 return NULL; 592 } 593 /* new target */ 594 target = &sbp->targets[i]; 595 target->fwdev = fwdev; 596 target->target_id = i; 597 /* XXX we may want to reload mgm port after each bus reset */ 598 /* XXX there might be multiple management agents */ 599 crom_init_context(&cc, target->fwdev->csrrom); 600 reg = crom_search_key(&cc, CROM_MGM); 601 if (reg == NULL || reg->val == 0) { 602 printf("NULL management address\n"); 603 target->fwdev = NULL; 604 return NULL; 605 } 606 target->mgm_hi = 0xffff; 607 target->mgm_lo = 0xf0000000 | (reg->val << 2); 608 target->mgm_ocb_cur = NULL; 609 SBP_DEBUG(1) 610 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 611 END_DEBUG 612 STAILQ_INIT(&target->xferlist); 613 target->n_xfer = 0; 614 STAILQ_INIT(&target->mgm_ocb_queue); 615 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0); 616 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0); 617 618 target->luns = NULL; 619 target->num_lun = 0; 620 return target; 621 } 622 623 static void 624 sbp_probe_lun(struct sbp_dev *sdev) 625 { 626 struct fw_device *fwdev; 627 struct crom_context c, *cc = &c; 628 struct csrreg *reg; 629 630 bzero(sdev->vendor, sizeof(sdev->vendor)); 631 bzero(sdev->product, sizeof(sdev->product)); 632 633 fwdev = sdev->target->fwdev; 634 crom_init_context(cc, fwdev->csrrom); 635 /* get vendor string */ 636 crom_search_key(cc, CSRKEY_VENDOR); 637 crom_next(cc); 638 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 639 /* skip to the unit directory for SBP-2 */ 640 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 641 if (reg->val == CSRVAL_T10SBP2) 642 break; 643 crom_next(cc); 644 } 645 /* get firmware revision */ 646 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 647 if (reg != NULL) 648 snprintf(sdev->revision, sizeof(sdev->revision), 649 "%06x", reg->val); 650 /* get product string */ 651 crom_search_key(cc, CSRKEY_MODEL); 652 crom_next(cc); 653 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 654 } 655 656 static void 657 sbp_login_callout(void *arg) 658 { 659 struct sbp_dev *sdev = (struct sbp_dev *)arg; 660 SBP_LOCK_ASSERT(sdev->target->sbp); 661 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 662 } 663 664 static void 665 sbp_login(struct sbp_dev *sdev) 666 { 667 struct timeval delta; 668 struct timeval t; 669 int ticks = 0; 670 671 microtime(&delta); 672 timevalsub(&delta, &sdev->target->sbp->last_busreset); 673 t.tv_sec = login_delay / 1000; 674 t.tv_usec = (login_delay % 1000) * 1000; 675 timevalsub(&t, &delta); 676 if (t.tv_sec >= 0 && t.tv_usec > 0) 677 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 678 SBP_DEBUG(0) 679 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 680 (intmax_t)t.tv_sec, t.tv_usec, ticks); 681 END_DEBUG 682 callout_reset(&sdev->login_callout, ticks, 683 sbp_login_callout, (void *)(sdev)); 684 } 685 686 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 687 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 688 689 static void 690 sbp_probe_target(struct sbp_target *target) 691 { 692 struct sbp_softc *sbp = target->sbp; 693 struct sbp_dev *sdev; 694 int i, alive; 695 696 alive = SBP_FWDEV_ALIVE(target->fwdev); 697 SBP_DEBUG(1) 698 device_printf(sbp->fd.dev, "%s %d%salive\n", 699 __func__, target->target_id, 700 (!alive) ? " not " : ""); 701 END_DEBUG 702 703 sbp_alloc_lun(target); 704 705 /* XXX untimeout mgm_ocb and dequeue */ 706 for (i=0; i < target->num_lun; i++) { 707 sdev = target->luns[i]; 708 if (sdev == NULL) 709 continue; 710 if (alive && (sdev->status != SBP_DEV_DEAD)) { 711 if (sdev->path != NULL) { 712 xpt_freeze_devq(sdev->path, 1); 713 sdev->freeze++; 714 } 715 sbp_probe_lun(sdev); 716 sbp_show_sdev_info(sdev); 717 718 SBP_LOCK(sbp); 719 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 720 SBP_UNLOCK(sbp); 721 switch (sdev->status) { 722 case SBP_DEV_RESET: 723 /* new or revived target */ 724 if (auto_login) 725 sbp_login(sdev); 726 break; 727 case SBP_DEV_TOATTACH: 728 case SBP_DEV_PROBE: 729 case SBP_DEV_ATTACHED: 730 case SBP_DEV_RETRY: 731 default: 732 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 733 break; 734 } 735 } else { 736 switch (sdev->status) { 737 case SBP_DEV_ATTACHED: 738 SBP_DEBUG(0) 739 /* the device has gone */ 740 device_printf(sbp->fd.dev, "%s: lost target\n", 741 __func__); 742 END_DEBUG 743 if (sdev->path) { 744 xpt_freeze_devq(sdev->path, 1); 745 sdev->freeze++; 746 } 747 sdev->status = SBP_DEV_RETRY; 748 sbp_cam_detach_sdev(sdev); 749 sbp_free_sdev(sdev); 750 target->luns[i] = NULL; 751 break; 752 case SBP_DEV_PROBE: 753 case SBP_DEV_TOATTACH: 754 sdev->status = SBP_DEV_RESET; 755 break; 756 case SBP_DEV_RETRY: 757 case SBP_DEV_RESET: 758 case SBP_DEV_DEAD: 759 break; 760 } 761 } 762 } 763 } 764 765 static void 766 sbp_post_busreset(void *arg) 767 { 768 struct sbp_softc *sbp; 769 770 sbp = (struct sbp_softc *)arg; 771 SBP_DEBUG(0) 772 printf("sbp_post_busreset\n"); 773 END_DEBUG 774 SBP_LOCK(sbp); 775 if ((sbp->flags & SIMQ_FREEZED) == 0) { 776 xpt_freeze_simq(sbp->sim, /*count*/1); 777 sbp->flags |= SIMQ_FREEZED; 778 } 779 microtime(&sbp->last_busreset); 780 SBP_UNLOCK(sbp); 781 } 782 783 static void 784 sbp_post_explore(void *arg) 785 { 786 struct sbp_softc *sbp = (struct sbp_softc *)arg; 787 struct sbp_target *target; 788 struct fw_device *fwdev; 789 int i, alive; 790 791 SBP_DEBUG(0) 792 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 793 END_DEBUG 794 /* We need physical access */ 795 if (!firewire_phydma_enable) 796 return; 797 798 if (sbp_cold > 0) 799 sbp_cold--; 800 801 SBP_LOCK(sbp); 802 803 /* Garbage Collection */ 804 for (i = 0; i < SBP_NUM_TARGETS; i++) { 805 target = &sbp->targets[i]; 806 if (target->fwdev == NULL) 807 continue; 808 809 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 810 if (target->fwdev == fwdev) 811 break; 812 if (fwdev == NULL) { 813 /* device has removed in lower driver */ 814 sbp_cam_detach_target(target); 815 sbp_free_target(target); 816 } 817 } 818 819 /* traverse device list */ 820 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 821 SBP_DEBUG(0) 822 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 823 __func__, fwdev->eui.hi, fwdev->eui.lo, 824 (fwdev->status != FWDEVATTACHED) ? "not" : "", 825 fwdev->status); 826 END_DEBUG 827 alive = SBP_FWDEV_ALIVE(fwdev); 828 for (i = 0; i < SBP_NUM_TARGETS; i++) { 829 target = &sbp->targets[i]; 830 if (target->fwdev == fwdev) { 831 /* known target */ 832 break; 833 } 834 } 835 if (i == SBP_NUM_TARGETS) { 836 if (alive) { 837 /* new target */ 838 target = sbp_alloc_target(sbp, fwdev); 839 if (target == NULL) 840 continue; 841 } else { 842 continue; 843 } 844 } 845 846 /* 847 * It is safe to drop the lock here as the target is already 848 * reserved, so there should be no contenders for it. 849 * And the target is not yet exposed, so there should not be 850 * any other accesses to it. 851 * Finally, the list being iterated is protected somewhere else. 852 */ 853 SBP_UNLOCK(sbp); 854 sbp_probe_target(target); 855 SBP_LOCK(sbp); 856 if (target->num_lun == 0) 857 sbp_free_target(target); 858 } 859 if ((sbp->flags & SIMQ_FREEZED) != 0) { 860 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 861 sbp->flags &= ~SIMQ_FREEZED; 862 } 863 SBP_UNLOCK(sbp); 864 } 865 866 #if NEED_RESPONSE 867 static void 868 sbp_loginres_callback(struct fw_xfer *xfer) 869 { 870 struct sbp_dev *sdev; 871 sdev = (struct sbp_dev *)xfer->sc; 872 SBP_DEBUG(1) 873 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 874 END_DEBUG 875 /* recycle */ 876 SBP_LOCK(sdev->target->sbp); 877 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 878 SBP_UNLOCK(sdev->target->sbp); 879 return; 880 } 881 #endif 882 883 static __inline void 884 sbp_xfer_free(struct fw_xfer *xfer) 885 { 886 struct sbp_dev *sdev; 887 888 sdev = (struct sbp_dev *)xfer->sc; 889 fw_xfer_unload(xfer); 890 SBP_LOCK_ASSERT(sdev->target->sbp); 891 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 892 } 893 894 static void 895 sbp_reset_start_callback(struct fw_xfer *xfer) 896 { 897 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 898 struct sbp_target *target = sdev->target; 899 int i; 900 901 if (xfer->resp != 0) { 902 device_printf(sdev->target->sbp->fd.dev, 903 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 904 } 905 906 SBP_LOCK(target->sbp); 907 for (i = 0; i < target->num_lun; i++) { 908 tsdev = target->luns[i]; 909 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 910 sbp_login(tsdev); 911 } 912 SBP_UNLOCK(target->sbp); 913 } 914 915 static void 916 sbp_reset_start(struct sbp_dev *sdev) 917 { 918 struct fw_xfer *xfer; 919 struct fw_pkt *fp; 920 921 SBP_DEBUG(0) 922 device_printf(sdev->target->sbp->fd.dev, 923 "%s:%s\n", __func__,sdev->bustgtlun); 924 END_DEBUG 925 926 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 927 xfer->hand = sbp_reset_start_callback; 928 fp = &xfer->send.hdr; 929 fp->mode.wreqq.dest_hi = 0xffff; 930 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 931 fp->mode.wreqq.data = htonl(0xf); 932 fw_asyreq(xfer->fc, -1, xfer); 933 } 934 935 static void 936 sbp_mgm_callback(struct fw_xfer *xfer) 937 { 938 struct sbp_dev *sdev; 939 940 sdev = (struct sbp_dev *)xfer->sc; 941 942 SBP_DEBUG(1) 943 device_printf(sdev->target->sbp->fd.dev, 944 "%s:%s\n", __func__, sdev->bustgtlun); 945 END_DEBUG 946 SBP_LOCK(sdev->target->sbp); 947 sbp_xfer_free(xfer); 948 SBP_UNLOCK(sdev->target->sbp); 949 } 950 951 static struct sbp_dev * 952 sbp_next_dev(struct sbp_target *target, int lun) 953 { 954 struct sbp_dev **sdevp; 955 int i; 956 957 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 958 i++, sdevp++) 959 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 960 return (*sdevp); 961 return (NULL); 962 } 963 964 #define SCAN_PRI 1 965 static void 966 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 967 { 968 struct sbp_softc *sbp; 969 struct sbp_target *target; 970 struct sbp_dev *sdev; 971 972 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 973 target = sdev->target; 974 sbp = target->sbp; 975 SBP_LOCK(sbp); 976 SBP_DEBUG(0) 977 device_printf(sbp->fd.dev, 978 "%s:%s\n", __func__, sdev->bustgtlun); 979 END_DEBUG 980 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 981 sdev->status = SBP_DEV_ATTACHED; 982 } else { 983 device_printf(sbp->fd.dev, 984 "%s:%s failed\n", __func__, sdev->bustgtlun); 985 } 986 sdev = sbp_next_dev(target, sdev->lun_id + 1); 987 if (sdev == NULL) { 988 SBP_UNLOCK(sbp); 989 xpt_free_ccb(ccb); 990 return; 991 } 992 /* reuse ccb */ 993 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 994 ccb->ccb_h.ccb_sdev_ptr = sdev; 995 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 996 SBP_UNLOCK(sbp); 997 998 xpt_action(ccb); 999 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1000 sdev->freeze = 1; 1001 } 1002 1003 static void 1004 sbp_cam_scan_target(void *arg) 1005 { 1006 struct sbp_target *target = (struct sbp_target *)arg; 1007 struct sbp_dev *sdev; 1008 union ccb *ccb; 1009 1010 SBP_LOCK_ASSERT(target->sbp); 1011 sdev = sbp_next_dev(target, 0); 1012 if (sdev == NULL) { 1013 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1014 target->target_id); 1015 return; 1016 } 1017 SBP_DEBUG(0) 1018 device_printf(sdev->target->sbp->fd.dev, 1019 "%s:%s\n", __func__, sdev->bustgtlun); 1020 END_DEBUG 1021 ccb = xpt_alloc_ccb_nowait(); 1022 if (ccb == NULL) { 1023 printf("sbp_cam_scan_target: xpt_alloc_ccb_nowait() failed\n"); 1024 return; 1025 } 1026 SBP_UNLOCK(target->sbp); 1027 1028 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1029 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1030 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1031 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1032 ccb->crcn.flags = CAM_FLAG_NONE; 1033 ccb->ccb_h.ccb_sdev_ptr = sdev; 1034 1035 /* The scan is in progress now. */ 1036 xpt_action(ccb); 1037 1038 SBP_LOCK(target->sbp); 1039 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1040 sdev->freeze = 1; 1041 } 1042 1043 static __inline void 1044 sbp_scan_dev(struct sbp_dev *sdev) 1045 { 1046 sdev->status = SBP_DEV_PROBE; 1047 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1048 sbp_cam_scan_target, (void *)sdev->target, 0); 1049 } 1050 1051 static void 1052 sbp_do_attach(struct fw_xfer *xfer) 1053 { 1054 struct sbp_dev *sdev; 1055 struct sbp_target *target; 1056 struct sbp_softc *sbp; 1057 1058 sdev = (struct sbp_dev *)xfer->sc; 1059 target = sdev->target; 1060 sbp = target->sbp; 1061 SBP_LOCK(sbp); 1062 SBP_DEBUG(0) 1063 device_printf(sdev->target->sbp->fd.dev, 1064 "%s:%s\n", __func__, sdev->bustgtlun); 1065 END_DEBUG 1066 sbp_xfer_free(xfer); 1067 1068 if (sdev->path == NULL) 1069 xpt_create_path(&sdev->path, NULL, 1070 cam_sim_path(target->sbp->sim), 1071 target->target_id, sdev->lun_id); 1072 1073 /* 1074 * Let CAM scan the bus if we are in the boot process. 1075 * XXX xpt_scan_bus cannot detect LUN larger than 0 1076 * if LUN 0 doesn't exist. 1077 */ 1078 if (sbp_cold > 0) { 1079 sdev->status = SBP_DEV_ATTACHED; 1080 SBP_UNLOCK(sbp); 1081 return; 1082 } 1083 1084 sbp_scan_dev(sdev); 1085 SBP_UNLOCK(sbp); 1086 } 1087 1088 static void 1089 sbp_agent_reset_callback(struct fw_xfer *xfer) 1090 { 1091 struct sbp_dev *sdev; 1092 1093 sdev = (struct sbp_dev *)xfer->sc; 1094 SBP_DEBUG(1) 1095 device_printf(sdev->target->sbp->fd.dev, 1096 "%s:%s\n", __func__, sdev->bustgtlun); 1097 END_DEBUG 1098 if (xfer->resp != 0) { 1099 device_printf(sdev->target->sbp->fd.dev, 1100 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1101 } 1102 1103 SBP_LOCK(sdev->target->sbp); 1104 sbp_xfer_free(xfer); 1105 if (sdev->path) { 1106 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1107 sdev->freeze = 0; 1108 } 1109 SBP_UNLOCK(sdev->target->sbp); 1110 } 1111 1112 static void 1113 sbp_agent_reset(struct sbp_dev *sdev) 1114 { 1115 struct fw_xfer *xfer; 1116 struct fw_pkt *fp; 1117 1118 SBP_LOCK_ASSERT(sdev->target->sbp); 1119 SBP_DEBUG(0) 1120 device_printf(sdev->target->sbp->fd.dev, 1121 "%s:%s\n", __func__, sdev->bustgtlun); 1122 END_DEBUG 1123 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1124 if (xfer == NULL) 1125 return; 1126 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1127 xfer->hand = sbp_agent_reset_callback; 1128 else 1129 xfer->hand = sbp_do_attach; 1130 fp = &xfer->send.hdr; 1131 fp->mode.wreqq.data = htonl(0xf); 1132 fw_asyreq(xfer->fc, -1, xfer); 1133 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1134 } 1135 1136 static void 1137 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1138 { 1139 struct sbp_dev *sdev; 1140 1141 sdev = (struct sbp_dev *)xfer->sc; 1142 SBP_DEBUG(1) 1143 device_printf(sdev->target->sbp->fd.dev, 1144 "%s:%s\n", __func__, sdev->bustgtlun); 1145 END_DEBUG 1146 SBP_LOCK(sdev->target->sbp); 1147 sbp_xfer_free(xfer); 1148 sbp_agent_reset(sdev); 1149 SBP_UNLOCK(sdev->target->sbp); 1150 } 1151 1152 static void 1153 sbp_busy_timeout(struct sbp_dev *sdev) 1154 { 1155 struct fw_pkt *fp; 1156 struct fw_xfer *xfer; 1157 SBP_DEBUG(0) 1158 device_printf(sdev->target->sbp->fd.dev, 1159 "%s:%s\n", __func__, sdev->bustgtlun); 1160 END_DEBUG 1161 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1162 1163 xfer->hand = sbp_busy_timeout_callback; 1164 fp = &xfer->send.hdr; 1165 fp->mode.wreqq.dest_hi = 0xffff; 1166 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1167 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1168 fw_asyreq(xfer->fc, -1, xfer); 1169 } 1170 1171 static void 1172 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1173 { 1174 struct sbp_dev *sdev; 1175 sdev = (struct sbp_dev *)xfer->sc; 1176 1177 SBP_DEBUG(2) 1178 device_printf(sdev->target->sbp->fd.dev, 1179 "%s:%s\n", __func__, sdev->bustgtlun); 1180 END_DEBUG 1181 if (xfer->resp != 0) { 1182 /* XXX */ 1183 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1184 } 1185 SBP_LOCK(sdev->target->sbp); 1186 sbp_xfer_free(xfer); 1187 1188 sdev->flags &= ~ORB_POINTER_ACTIVE; 1189 1190 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1191 struct sbp_ocb *ocb; 1192 1193 sdev->flags &= ~ORB_POINTER_NEED; 1194 ocb = STAILQ_FIRST(&sdev->ocbs); 1195 if (ocb != NULL) 1196 sbp_orb_pointer(sdev, ocb); 1197 } 1198 SBP_UNLOCK(sdev->target->sbp); 1199 return; 1200 } 1201 1202 static void 1203 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1204 { 1205 struct fw_xfer *xfer; 1206 struct fw_pkt *fp; 1207 SBP_DEBUG(1) 1208 device_printf(sdev->target->sbp->fd.dev, 1209 "%s:%s 0x%08x\n", 1210 __func__, sdev->bustgtlun, 1211 (uint32_t)ocb->bus_addr); 1212 END_DEBUG 1213 1214 SBP_LOCK_ASSERT(sdev->target->sbp); 1215 1216 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1217 SBP_DEBUG(0) 1218 printf("%s: orb pointer active\n", __func__); 1219 END_DEBUG 1220 sdev->flags |= ORB_POINTER_NEED; 1221 return; 1222 } 1223 1224 sdev->flags |= ORB_POINTER_ACTIVE; 1225 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1226 if (xfer == NULL) 1227 return; 1228 xfer->hand = sbp_orb_pointer_callback; 1229 1230 fp = &xfer->send.hdr; 1231 fp->mode.wreqb.len = 8; 1232 fp->mode.wreqb.extcode = 0; 1233 xfer->send.payload[0] = 1234 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1235 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1236 1237 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1238 sbp_xfer_free(xfer); 1239 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1240 xpt_done(ocb->ccb); 1241 } 1242 } 1243 1244 static void 1245 sbp_doorbell_callback(struct fw_xfer *xfer) 1246 { 1247 struct sbp_dev *sdev; 1248 sdev = (struct sbp_dev *)xfer->sc; 1249 1250 SBP_DEBUG(1) 1251 device_printf(sdev->target->sbp->fd.dev, 1252 "%s:%s\n", __func__, sdev->bustgtlun); 1253 END_DEBUG 1254 if (xfer->resp != 0) { 1255 /* XXX */ 1256 device_printf(sdev->target->sbp->fd.dev, 1257 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1258 } 1259 SBP_LOCK(sdev->target->sbp); 1260 sbp_xfer_free(xfer); 1261 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1262 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1263 sdev->flags &= ~ORB_DOORBELL_NEED; 1264 sbp_doorbell(sdev); 1265 } 1266 SBP_UNLOCK(sdev->target->sbp); 1267 } 1268 1269 static void 1270 sbp_doorbell(struct sbp_dev *sdev) 1271 { 1272 struct fw_xfer *xfer; 1273 struct fw_pkt *fp; 1274 SBP_DEBUG(1) 1275 device_printf(sdev->target->sbp->fd.dev, 1276 "%s:%s\n", __func__, sdev->bustgtlun); 1277 END_DEBUG 1278 1279 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1280 sdev->flags |= ORB_DOORBELL_NEED; 1281 return; 1282 } 1283 sdev->flags |= ORB_DOORBELL_ACTIVE; 1284 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1285 if (xfer == NULL) 1286 return; 1287 xfer->hand = sbp_doorbell_callback; 1288 fp = &xfer->send.hdr; 1289 fp->mode.wreqq.data = htonl(0xf); 1290 fw_asyreq(xfer->fc, -1, xfer); 1291 } 1292 1293 static struct fw_xfer * 1294 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1295 { 1296 struct fw_xfer *xfer; 1297 struct fw_pkt *fp; 1298 struct sbp_target *target; 1299 int new = 0; 1300 1301 SBP_LOCK_ASSERT(sdev->target->sbp); 1302 1303 target = sdev->target; 1304 xfer = STAILQ_FIRST(&target->xferlist); 1305 if (xfer == NULL) { 1306 if (target->n_xfer > 5 /* XXX */) { 1307 printf("sbp: no more xfer for this target\n"); 1308 return (NULL); 1309 } 1310 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1311 if (xfer == NULL) { 1312 printf("sbp: fw_xfer_alloc_buf failed\n"); 1313 return NULL; 1314 } 1315 target->n_xfer++; 1316 if (debug) 1317 printf("sbp: alloc %d xfer\n", target->n_xfer); 1318 new = 1; 1319 } else { 1320 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1321 } 1322 1323 if (new) { 1324 xfer->recv.pay_len = 0; 1325 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1326 xfer->fc = sdev->target->sbp->fd.fc; 1327 } 1328 1329 if (tcode == FWTCODE_WREQB) 1330 xfer->send.pay_len = 8; 1331 else 1332 xfer->send.pay_len = 0; 1333 1334 xfer->sc = (caddr_t)sdev; 1335 fp = &xfer->send.hdr; 1336 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1337 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1338 fp->mode.wreqq.tlrt = 0; 1339 fp->mode.wreqq.tcode = tcode; 1340 fp->mode.wreqq.pri = 0; 1341 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1342 1343 return xfer; 1344 } 1345 1346 static void 1347 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1348 { 1349 struct fw_xfer *xfer; 1350 struct fw_pkt *fp; 1351 struct sbp_ocb *ocb; 1352 struct sbp_target *target; 1353 int nid; 1354 1355 target = sdev->target; 1356 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1357 1358 SBP_LOCK_ASSERT(target->sbp); 1359 if (func == ORB_FUN_RUNQUEUE) { 1360 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1361 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1362 return; 1363 } 1364 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1365 goto start; 1366 } 1367 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1368 /* XXX */ 1369 return; 1370 } 1371 ocb->flags = OCB_ACT_MGM; 1372 ocb->sdev = sdev; 1373 1374 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1375 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1376 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1377 1378 SBP_DEBUG(0) 1379 device_printf(sdev->target->sbp->fd.dev, 1380 "%s:%s %s\n", 1381 __func__,sdev->bustgtlun, 1382 orb_fun_name[(func >> 16) & 0xf]); 1383 END_DEBUG 1384 switch (func) { 1385 case ORB_FUN_LGI: 1386 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1387 ocb->orb[2] = htonl(nid << 16); 1388 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1389 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1390 if (ex_login) 1391 ocb->orb[4] |= htonl(ORB_EXV); 1392 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1393 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1394 break; 1395 case ORB_FUN_ATA: 1396 ocb->orb[0] = htonl((0 << 16) | 0); 1397 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1398 /* fall through */ 1399 case ORB_FUN_RCN: 1400 case ORB_FUN_LGO: 1401 case ORB_FUN_LUR: 1402 case ORB_FUN_RST: 1403 case ORB_FUN_ATS: 1404 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1405 break; 1406 } 1407 1408 if (target->mgm_ocb_cur != NULL) { 1409 /* there is a standing ORB */ 1410 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1411 return; 1412 } 1413 start: 1414 target->mgm_ocb_cur = ocb; 1415 1416 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1417 sbp_mgm_timeout, (caddr_t)ocb); 1418 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1419 if (xfer == NULL) { 1420 return; 1421 } 1422 xfer->hand = sbp_mgm_callback; 1423 1424 fp = &xfer->send.hdr; 1425 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1426 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1427 fp->mode.wreqb.len = 8; 1428 fp->mode.wreqb.extcode = 0; 1429 xfer->send.payload[0] = htonl(nid << 16); 1430 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1431 1432 fw_asyreq(xfer->fc, -1, xfer); 1433 } 1434 1435 static void 1436 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1437 { 1438 struct ccb_scsiio *csio; 1439 1440 csio = &ocb->ccb->csio; 1441 printf("%s:%d:%jx XPT_SCSI_IO: " 1442 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1443 ", flags: 0x%02x, " 1444 "%db cmd/%db data/%db sense\n", 1445 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1446 ocb->ccb->ccb_h.target_id, 1447 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1448 csio->cdb_io.cdb_bytes[0], 1449 csio->cdb_io.cdb_bytes[1], 1450 csio->cdb_io.cdb_bytes[2], 1451 csio->cdb_io.cdb_bytes[3], 1452 csio->cdb_io.cdb_bytes[4], 1453 csio->cdb_io.cdb_bytes[5], 1454 csio->cdb_io.cdb_bytes[6], 1455 csio->cdb_io.cdb_bytes[7], 1456 csio->cdb_io.cdb_bytes[8], 1457 csio->cdb_io.cdb_bytes[9], 1458 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1459 csio->cdb_len, csio->dxfer_len, 1460 csio->sense_len); 1461 } 1462 1463 static void 1464 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1465 { 1466 struct sbp_cmd_status *sbp_cmd_status; 1467 struct scsi_sense_data_fixed *sense; 1468 1469 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1470 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1471 1472 SBP_DEBUG(0) 1473 sbp_print_scsi_cmd(ocb); 1474 /* XXX need decode status */ 1475 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1476 ocb->sdev->bustgtlun, 1477 sbp_cmd_status->status, 1478 sbp_cmd_status->sfmt, 1479 sbp_cmd_status->valid, 1480 sbp_cmd_status->s_key, 1481 sbp_cmd_status->s_code, 1482 sbp_cmd_status->s_qlfr, 1483 sbp_status->len); 1484 END_DEBUG 1485 1486 switch (sbp_cmd_status->status) { 1487 case SCSI_STATUS_CHECK_COND: 1488 case SCSI_STATUS_BUSY: 1489 case SCSI_STATUS_CMD_TERMINATED: 1490 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1491 sense->error_code = SSD_CURRENT_ERROR; 1492 } else { 1493 sense->error_code = SSD_DEFERRED_ERROR; 1494 } 1495 if (sbp_cmd_status->valid) 1496 sense->error_code |= SSD_ERRCODE_VALID; 1497 sense->flags = sbp_cmd_status->s_key; 1498 if (sbp_cmd_status->mark) 1499 sense->flags |= SSD_FILEMARK; 1500 if (sbp_cmd_status->eom) 1501 sense->flags |= SSD_EOM; 1502 if (sbp_cmd_status->ill_len) 1503 sense->flags |= SSD_ILI; 1504 1505 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1506 1507 if (sbp_status->len <= 1) 1508 /* XXX not scsi status. shouldn't be happened */ 1509 sense->extra_len = 0; 1510 else if (sbp_status->len <= 4) 1511 /* add_sense_code(_qual), info, cmd_spec_info */ 1512 sense->extra_len = 6; 1513 else 1514 /* fru, sense_key_spec */ 1515 sense->extra_len = 10; 1516 1517 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1518 1519 sense->add_sense_code = sbp_cmd_status->s_code; 1520 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1521 sense->fru = sbp_cmd_status->fru; 1522 1523 bcopy(&sbp_cmd_status->s_keydep[0], 1524 &sense->sense_key_spec[0], 3); 1525 1526 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1527 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1528 | CAM_AUTOSNS_VALID; 1529 /* 1530 { 1531 uint8_t j, *tmp; 1532 tmp = sense; 1533 for (j = 0; j < 32; j += 8) { 1534 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1535 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1536 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1537 } 1538 1539 } 1540 */ 1541 break; 1542 default: 1543 device_printf(ocb->sdev->target->sbp->fd.dev, 1544 "%s:%s unknown scsi status 0x%x\n", 1545 __func__, ocb->sdev->bustgtlun, 1546 sbp_cmd_status->status); 1547 } 1548 } 1549 1550 static void 1551 sbp_fix_inq_data(struct sbp_ocb *ocb) 1552 { 1553 union ccb *ccb; 1554 struct sbp_dev *sdev; 1555 struct scsi_inquiry_data *inq; 1556 1557 ccb = ocb->ccb; 1558 sdev = ocb->sdev; 1559 1560 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1561 return; 1562 SBP_DEBUG(1) 1563 device_printf(sdev->target->sbp->fd.dev, 1564 "%s:%s\n", __func__, sdev->bustgtlun); 1565 END_DEBUG 1566 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1567 switch (SID_TYPE(inq)) { 1568 case T_DIRECT: 1569 #if 0 1570 /* 1571 * XXX Convert Direct Access device to RBC. 1572 * I've never seen FireWire DA devices which support READ_6. 1573 */ 1574 if (SID_TYPE(inq) == T_DIRECT) 1575 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1576 #endif 1577 /* fall through */ 1578 case T_RBC: 1579 /* 1580 * Override vendor/product/revision information. 1581 * Some devices sometimes return strange strings. 1582 */ 1583 #if 1 1584 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1585 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1586 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1587 #endif 1588 break; 1589 } 1590 /* 1591 * Force to enable/disable tagged queuing. 1592 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1593 */ 1594 if (sbp_tags > 0) 1595 inq->flags |= SID_CmdQue; 1596 else if (sbp_tags < 0) 1597 inq->flags &= ~SID_CmdQue; 1598 1599 } 1600 1601 static void 1602 sbp_recv1(struct fw_xfer *xfer) 1603 { 1604 struct fw_pkt *rfp; 1605 #if NEED_RESPONSE 1606 struct fw_pkt *sfp; 1607 #endif 1608 struct sbp_softc *sbp; 1609 struct sbp_dev *sdev; 1610 struct sbp_ocb *ocb; 1611 struct sbp_login_res *login_res = NULL; 1612 struct sbp_status *sbp_status; 1613 struct sbp_target *target; 1614 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1615 uint32_t addr; 1616 /* 1617 uint32_t *ld; 1618 ld = xfer->recv.buf; 1619 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1620 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1621 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1622 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1623 */ 1624 sbp = (struct sbp_softc *)xfer->sc; 1625 SBP_LOCK_ASSERT(sbp); 1626 if (xfer->resp != 0) { 1627 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1628 goto done0; 1629 } 1630 if (xfer->recv.payload == NULL) { 1631 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1632 goto done0; 1633 } 1634 rfp = &xfer->recv.hdr; 1635 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1636 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1637 goto done0; 1638 } 1639 sbp_status = (struct sbp_status *)xfer->recv.payload; 1640 addr = rfp->mode.wreqb.dest_lo; 1641 SBP_DEBUG(2) 1642 printf("received address 0x%x\n", addr); 1643 END_DEBUG 1644 t = SBP_ADDR2TRG(addr); 1645 if (t >= SBP_NUM_TARGETS) { 1646 device_printf(sbp->fd.dev, 1647 "sbp_recv1: invalid target %d\n", t); 1648 goto done0; 1649 } 1650 target = &sbp->targets[t]; 1651 l = SBP_ADDR2LUN(addr); 1652 if (l >= target->num_lun || target->luns[l] == NULL) { 1653 device_printf(sbp->fd.dev, 1654 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1655 goto done0; 1656 } 1657 sdev = target->luns[l]; 1658 1659 ocb = NULL; 1660 switch (sbp_status->src) { 1661 case 0: 1662 case 1: 1663 /* check mgm_ocb_cur first */ 1664 ocb = target->mgm_ocb_cur; 1665 if (ocb != NULL) { 1666 if (OCB_MATCH(ocb, sbp_status)) { 1667 callout_stop(&target->mgm_ocb_timeout); 1668 target->mgm_ocb_cur = NULL; 1669 break; 1670 } 1671 } 1672 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1673 if (ocb == NULL) { 1674 device_printf(sdev->target->sbp->fd.dev, 1675 "%s:%s No ocb(%x) on the queue\n", 1676 __func__,sdev->bustgtlun, 1677 ntohl(sbp_status->orb_lo)); 1678 } 1679 break; 1680 case 2: 1681 /* unsolicit */ 1682 device_printf(sdev->target->sbp->fd.dev, 1683 "%s:%s unsolicit status received\n", 1684 __func__, sdev->bustgtlun); 1685 break; 1686 default: 1687 device_printf(sdev->target->sbp->fd.dev, 1688 "%s:%s unknown sbp_status->src\n", 1689 __func__, sdev->bustgtlun); 1690 } 1691 1692 status_valid0 = (sbp_status->src < 2 1693 && sbp_status->resp == ORB_RES_CMPL 1694 && sbp_status->dead == 0); 1695 status_valid = (status_valid0 && sbp_status->status == 0); 1696 1697 if (!status_valid0 || debug > 2) { 1698 int status; 1699 SBP_DEBUG(0) 1700 device_printf(sdev->target->sbp->fd.dev, 1701 "%s:%s ORB status src:%x resp:%x dead:%x" 1702 " len:%x stat:%x orb:%x%08x\n", 1703 __func__, sdev->bustgtlun, 1704 sbp_status->src, sbp_status->resp, sbp_status->dead, 1705 sbp_status->len, sbp_status->status, 1706 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1707 END_DEBUG 1708 device_printf(sdev->target->sbp->fd.dev, 1709 "%s\n", sdev->bustgtlun); 1710 status = sbp_status->status; 1711 switch (sbp_status->resp) { 1712 case 0: 1713 if (status > MAX_ORB_STATUS0) 1714 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1715 else 1716 printf("%s\n", orb_status0[status]); 1717 break; 1718 case 1: 1719 printf("Obj: %s, Error: %s\n", 1720 orb_status1_object[(status >> 6) & 3], 1721 orb_status1_serial_bus_error[status & 0xf]); 1722 break; 1723 case 2: 1724 printf("Illegal request\n"); 1725 break; 1726 case 3: 1727 printf("Vendor dependent\n"); 1728 break; 1729 default: 1730 printf("unknown respose code %d\n", sbp_status->resp); 1731 } 1732 } 1733 1734 /* we have to reset the fetch agent if it's dead */ 1735 if (sbp_status->dead) { 1736 if (sdev->path) { 1737 xpt_freeze_devq(sdev->path, 1); 1738 sdev->freeze++; 1739 } 1740 reset_agent = 1; 1741 } 1742 1743 if (ocb == NULL) 1744 goto done; 1745 1746 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1747 case ORB_FMT_NOP: 1748 break; 1749 case ORB_FMT_VED: 1750 break; 1751 case ORB_FMT_STD: 1752 switch (ocb->flags) { 1753 case OCB_ACT_MGM: 1754 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1755 reset_agent = 0; 1756 switch (orb_fun) { 1757 case ORB_FUN_LGI: 1758 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1759 login_res = sdev->login; 1760 login_res->len = ntohs(login_res->len); 1761 login_res->id = ntohs(login_res->id); 1762 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1763 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1764 if (status_valid) { 1765 SBP_DEBUG(0) 1766 device_printf(sdev->target->sbp->fd.dev, 1767 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1768 __func__, sdev->bustgtlun, 1769 login_res->len, login_res->id, 1770 login_res->cmd_hi, login_res->cmd_lo, 1771 ntohs(login_res->recon_hold)); 1772 END_DEBUG 1773 sbp_busy_timeout(sdev); 1774 } else { 1775 /* forgot logout? */ 1776 device_printf(sdev->target->sbp->fd.dev, 1777 "%s:%s login failed\n", 1778 __func__, sdev->bustgtlun); 1779 sdev->status = SBP_DEV_RESET; 1780 } 1781 break; 1782 case ORB_FUN_RCN: 1783 login_res = sdev->login; 1784 if (status_valid) { 1785 SBP_DEBUG(0) 1786 device_printf(sdev->target->sbp->fd.dev, 1787 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1788 __func__, sdev->bustgtlun, 1789 login_res->len, login_res->id, 1790 login_res->cmd_hi, login_res->cmd_lo); 1791 END_DEBUG 1792 if (sdev->status == SBP_DEV_ATTACHED) 1793 sbp_scan_dev(sdev); 1794 else 1795 sbp_agent_reset(sdev); 1796 } else { 1797 /* reconnection hold time exceed? */ 1798 SBP_DEBUG(0) 1799 device_printf(sdev->target->sbp->fd.dev, 1800 "%s:%s reconnect failed\n", 1801 __func__, sdev->bustgtlun); 1802 END_DEBUG 1803 sbp_login(sdev); 1804 } 1805 break; 1806 case ORB_FUN_LGO: 1807 sdev->status = SBP_DEV_RESET; 1808 break; 1809 case ORB_FUN_RST: 1810 sbp_busy_timeout(sdev); 1811 break; 1812 case ORB_FUN_LUR: 1813 case ORB_FUN_ATA: 1814 case ORB_FUN_ATS: 1815 sbp_agent_reset(sdev); 1816 break; 1817 default: 1818 device_printf(sdev->target->sbp->fd.dev, 1819 "%s:%s unknown function %d\n", 1820 __func__, sdev->bustgtlun, orb_fun); 1821 break; 1822 } 1823 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1824 break; 1825 case OCB_ACT_CMD: 1826 sdev->timeout = 0; 1827 if (ocb->ccb != NULL) { 1828 union ccb *ccb; 1829 1830 ccb = ocb->ccb; 1831 if (sbp_status->len > 1) { 1832 sbp_scsi_status(sbp_status, ocb); 1833 } else { 1834 if (sbp_status->resp != ORB_RES_CMPL) { 1835 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1836 } else { 1837 ccb->ccb_h.status = CAM_REQ_CMP; 1838 } 1839 } 1840 /* fix up inq data */ 1841 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1842 sbp_fix_inq_data(ocb); 1843 xpt_done(ccb); 1844 } 1845 break; 1846 default: 1847 break; 1848 } 1849 } 1850 1851 if (!use_doorbell) 1852 sbp_free_ocb(sdev, ocb); 1853 done: 1854 if (reset_agent) 1855 sbp_agent_reset(sdev); 1856 1857 done0: 1858 xfer->recv.pay_len = SBP_RECV_LEN; 1859 /* The received packet is usually small enough to be stored within 1860 * the buffer. In that case, the controller return ack_complete and 1861 * no respose is necessary. 1862 * 1863 * XXX fwohci.c and firewire.c should inform event_code such as 1864 * ack_complete or ack_pending to upper driver. 1865 */ 1866 #if NEED_RESPONSE 1867 xfer->send.off = 0; 1868 sfp = (struct fw_pkt *)xfer->send.buf; 1869 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1870 xfer->dst = sfp->mode.wres.dst; 1871 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1872 xfer->hand = sbp_loginres_callback; 1873 1874 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1875 sfp->mode.wres.tcode = FWTCODE_WRES; 1876 sfp->mode.wres.rtcode = 0; 1877 sfp->mode.wres.pri = 0; 1878 1879 fw_asyreq(xfer->fc, -1, xfer); 1880 #else 1881 /* recycle */ 1882 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1883 #endif 1884 } 1885 1886 static void 1887 sbp_recv(struct fw_xfer *xfer) 1888 { 1889 struct sbp_softc *sbp; 1890 1891 sbp = (struct sbp_softc *)xfer->sc; 1892 SBP_LOCK(sbp); 1893 sbp_recv1(xfer); 1894 SBP_UNLOCK(sbp); 1895 } 1896 /* 1897 * sbp_attach() 1898 */ 1899 static int 1900 sbp_attach(device_t dev) 1901 { 1902 struct sbp_softc *sbp; 1903 struct cam_devq *devq; 1904 struct firewire_comm *fc; 1905 int i, error; 1906 1907 if (DFLTPHYS > SBP_MAXPHYS) 1908 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1909 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1910 SBP_MAXPHYS / 1024); 1911 1912 if (!firewire_phydma_enable) 1913 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1914 "for SBP over FireWire.\n"); 1915 SBP_DEBUG(0) 1916 printf("sbp_attach (cold=%d)\n", cold); 1917 END_DEBUG 1918 1919 if (cold) 1920 sbp_cold++; 1921 sbp = device_get_softc(dev); 1922 sbp->fd.dev = dev; 1923 sbp->fd.fc = fc = fw_get_comm(dev); 1924 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1925 1926 if (max_speed < 0) 1927 max_speed = fc->speed; 1928 1929 error = bus_dma_tag_create(/*parent*/fc->dmat, 1930 /* XXX shoud be 4 for sane backend? */ 1931 /*alignment*/1, 1932 /*boundary*/0, 1933 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1934 /*highaddr*/BUS_SPACE_MAXADDR, 1935 /*filter*/NULL, /*filterarg*/NULL, 1936 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1937 /*maxsegsz*/SBP_SEG_MAX, 1938 /*flags*/BUS_DMA_ALLOCNOW, 1939 /*lockfunc*/busdma_lock_mutex, 1940 /*lockarg*/&sbp->mtx, 1941 &sbp->dmat); 1942 if (error != 0) { 1943 printf("sbp_attach: Could not allocate DMA tag " 1944 "- error %d\n", error); 1945 return (ENOMEM); 1946 } 1947 1948 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1949 if (devq == NULL) 1950 return (ENXIO); 1951 1952 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1953 sbp->targets[i].fwdev = NULL; 1954 sbp->targets[i].luns = NULL; 1955 sbp->targets[i].sbp = sbp; 1956 } 1957 1958 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1959 device_get_unit(dev), 1960 &sbp->mtx, 1961 /*untagged*/ 1, 1962 /*tagged*/ SBP_QUEUE_LEN - 1, 1963 devq); 1964 1965 if (sbp->sim == NULL) { 1966 cam_simq_free(devq); 1967 return (ENXIO); 1968 } 1969 1970 SBP_LOCK(sbp); 1971 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1972 goto fail; 1973 1974 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1975 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1976 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1977 goto fail; 1978 } 1979 SBP_UNLOCK(sbp); 1980 1981 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1982 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1983 sbp->fwb.end = sbp->fwb.start + 0xffff; 1984 /* pre-allocate xfer */ 1985 STAILQ_INIT(&sbp->fwb.xferlist); 1986 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1987 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1988 fc, (void *)sbp, sbp_recv); 1989 1990 fw_bindadd(fc, &sbp->fwb); 1991 1992 sbp->fd.post_busreset = sbp_post_busreset; 1993 sbp->fd.post_explore = sbp_post_explore; 1994 1995 if (fc->status != -1) { 1996 sbp_post_busreset(sbp); 1997 sbp_post_explore(sbp); 1998 } 1999 SBP_LOCK(sbp); 2000 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2001 SBP_UNLOCK(sbp); 2002 2003 return (0); 2004 fail: 2005 SBP_UNLOCK(sbp); 2006 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2007 return (ENXIO); 2008 } 2009 2010 static int 2011 sbp_logout_all(struct sbp_softc *sbp) 2012 { 2013 struct sbp_target *target; 2014 struct sbp_dev *sdev; 2015 int i, j; 2016 2017 SBP_DEBUG(0) 2018 printf("sbp_logout_all\n"); 2019 END_DEBUG 2020 SBP_LOCK_ASSERT(sbp); 2021 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2022 target = &sbp->targets[i]; 2023 if (target->luns == NULL) 2024 continue; 2025 for (j = 0; j < target->num_lun; j++) { 2026 sdev = target->luns[j]; 2027 if (sdev == NULL) 2028 continue; 2029 callout_stop(&sdev->login_callout); 2030 if (sdev->status >= SBP_DEV_TOATTACH && 2031 sdev->status <= SBP_DEV_ATTACHED) 2032 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2033 } 2034 } 2035 2036 return 0; 2037 } 2038 2039 static int 2040 sbp_shutdown(device_t dev) 2041 { 2042 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2043 2044 SBP_LOCK(sbp); 2045 sbp_logout_all(sbp); 2046 SBP_UNLOCK(sbp); 2047 return (0); 2048 } 2049 2050 static void 2051 sbp_free_sdev(struct sbp_dev *sdev) 2052 { 2053 struct sbp_softc *sbp; 2054 int i; 2055 2056 if (sdev == NULL) 2057 return; 2058 sbp = sdev->target->sbp; 2059 SBP_UNLOCK(sbp); 2060 callout_drain(&sdev->login_callout); 2061 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2062 callout_drain(&sdev->ocb[i].timer); 2063 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2064 } 2065 fwdma_free(sbp->fd.fc, &sdev->dma); 2066 free(sdev, M_SBP); 2067 SBP_LOCK(sbp); 2068 } 2069 2070 static void 2071 sbp_free_target(struct sbp_target *target) 2072 { 2073 struct sbp_softc *sbp; 2074 struct fw_xfer *xfer, *next; 2075 int i; 2076 2077 if (target->luns == NULL) 2078 return; 2079 sbp = target->sbp; 2080 SBP_LOCK_ASSERT(sbp); 2081 SBP_UNLOCK(sbp); 2082 callout_drain(&target->mgm_ocb_timeout); 2083 callout_drain(&target->scan_callout); 2084 SBP_LOCK(sbp); 2085 for (i = 0; i < target->num_lun; i++) 2086 sbp_free_sdev(target->luns[i]); 2087 2088 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2089 fw_xfer_free_buf(xfer); 2090 } 2091 STAILQ_INIT(&target->xferlist); 2092 free(target->luns, M_SBP); 2093 target->num_lun = 0; 2094 target->luns = NULL; 2095 target->fwdev = NULL; 2096 } 2097 2098 static int 2099 sbp_detach(device_t dev) 2100 { 2101 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2102 struct firewire_comm *fc = sbp->fd.fc; 2103 int i; 2104 2105 SBP_DEBUG(0) 2106 printf("sbp_detach\n"); 2107 END_DEBUG 2108 2109 SBP_LOCK(sbp); 2110 for (i = 0; i < SBP_NUM_TARGETS; i++) 2111 sbp_cam_detach_target(&sbp->targets[i]); 2112 2113 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2114 xpt_free_path(sbp->path); 2115 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2116 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2117 2118 sbp_logout_all(sbp); 2119 SBP_UNLOCK(sbp); 2120 2121 /* XXX wait for logout completion */ 2122 pause("sbpdtc", hz/2); 2123 2124 SBP_LOCK(sbp); 2125 for (i = 0; i < SBP_NUM_TARGETS; i++) 2126 sbp_free_target(&sbp->targets[i]); 2127 SBP_UNLOCK(sbp); 2128 2129 fw_bindremove(fc, &sbp->fwb); 2130 fw_xferlist_remove(&sbp->fwb.xferlist); 2131 2132 bus_dma_tag_destroy(sbp->dmat); 2133 mtx_destroy(&sbp->mtx); 2134 2135 return (0); 2136 } 2137 2138 static void 2139 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2140 { 2141 if (sdev == NULL) 2142 return; 2143 if (sdev->status == SBP_DEV_DEAD) 2144 return; 2145 if (sdev->status == SBP_DEV_RESET) 2146 return; 2147 SBP_LOCK_ASSERT(sdev->target->sbp); 2148 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2149 if (sdev->path) { 2150 xpt_release_devq(sdev->path, 2151 sdev->freeze, TRUE); 2152 sdev->freeze = 0; 2153 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2154 xpt_free_path(sdev->path); 2155 sdev->path = NULL; 2156 } 2157 } 2158 2159 static void 2160 sbp_cam_detach_target(struct sbp_target *target) 2161 { 2162 int i; 2163 2164 SBP_LOCK_ASSERT(target->sbp); 2165 if (target->luns != NULL) { 2166 SBP_DEBUG(0) 2167 printf("sbp_detach_target %d\n", target->target_id); 2168 END_DEBUG 2169 callout_stop(&target->scan_callout); 2170 for (i = 0; i < target->num_lun; i++) 2171 sbp_cam_detach_sdev(target->luns[i]); 2172 } 2173 } 2174 2175 static void 2176 sbp_target_reset(struct sbp_dev *sdev, int method) 2177 { 2178 int i; 2179 struct sbp_target *target = sdev->target; 2180 struct sbp_dev *tsdev; 2181 2182 SBP_LOCK_ASSERT(target->sbp); 2183 for (i = 0; i < target->num_lun; i++) { 2184 tsdev = target->luns[i]; 2185 if (tsdev == NULL) 2186 continue; 2187 if (tsdev->status == SBP_DEV_DEAD) 2188 continue; 2189 if (tsdev->status == SBP_DEV_RESET) 2190 continue; 2191 xpt_freeze_devq(tsdev->path, 1); 2192 tsdev->freeze++; 2193 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2194 if (method == 2) 2195 tsdev->status = SBP_DEV_LOGIN; 2196 } 2197 switch (method) { 2198 case 1: 2199 printf("target reset\n"); 2200 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2201 break; 2202 case 2: 2203 printf("reset start\n"); 2204 sbp_reset_start(sdev); 2205 break; 2206 } 2207 2208 } 2209 2210 static void 2211 sbp_mgm_timeout(void *arg) 2212 { 2213 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2214 struct sbp_dev *sdev = ocb->sdev; 2215 struct sbp_target *target = sdev->target; 2216 2217 SBP_LOCK_ASSERT(target->sbp); 2218 device_printf(sdev->target->sbp->fd.dev, 2219 "%s:%s request timeout(mgm orb:0x%08x)\n", 2220 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2221 target->mgm_ocb_cur = NULL; 2222 sbp_free_ocb(sdev, ocb); 2223 #if 0 2224 /* XXX */ 2225 printf("run next request\n"); 2226 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2227 #endif 2228 device_printf(sdev->target->sbp->fd.dev, 2229 "%s:%s reset start\n", 2230 __func__, sdev->bustgtlun); 2231 sbp_reset_start(sdev); 2232 } 2233 2234 static void 2235 sbp_timeout(void *arg) 2236 { 2237 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2238 struct sbp_dev *sdev = ocb->sdev; 2239 2240 device_printf(sdev->target->sbp->fd.dev, 2241 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2242 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2243 2244 SBP_LOCK_ASSERT(sdev->target->sbp); 2245 sdev->timeout++; 2246 switch (sdev->timeout) { 2247 case 1: 2248 printf("agent reset\n"); 2249 xpt_freeze_devq(sdev->path, 1); 2250 sdev->freeze++; 2251 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2252 sbp_agent_reset(sdev); 2253 break; 2254 case 2: 2255 case 3: 2256 sbp_target_reset(sdev, sdev->timeout - 1); 2257 break; 2258 #if 0 2259 default: 2260 /* XXX give up */ 2261 sbp_cam_detach_target(target); 2262 if (target->luns != NULL) 2263 free(target->luns, M_SBP); 2264 target->num_lun = 0; 2265 target->luns = NULL; 2266 target->fwdev = NULL; 2267 #endif 2268 } 2269 } 2270 2271 static void 2272 sbp_action(struct cam_sim *sim, union ccb *ccb) 2273 { 2274 2275 struct sbp_softc *sbp = cam_sim_softc(sim); 2276 struct sbp_target *target = NULL; 2277 struct sbp_dev *sdev = NULL; 2278 2279 if (sbp != NULL) 2280 SBP_LOCK_ASSERT(sbp); 2281 /* target:lun -> sdev mapping */ 2282 if (sbp != NULL 2283 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2284 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2285 target = &sbp->targets[ccb->ccb_h.target_id]; 2286 if (target->fwdev != NULL 2287 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2288 && ccb->ccb_h.target_lun < target->num_lun) { 2289 sdev = target->luns[ccb->ccb_h.target_lun]; 2290 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2291 sdev->status != SBP_DEV_PROBE) 2292 sdev = NULL; 2293 } 2294 } 2295 2296 SBP_DEBUG(1) 2297 if (sdev == NULL) 2298 printf("invalid target %d lun %jx\n", 2299 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2300 END_DEBUG 2301 2302 switch (ccb->ccb_h.func_code) { 2303 case XPT_SCSI_IO: 2304 case XPT_RESET_DEV: 2305 case XPT_GET_TRAN_SETTINGS: 2306 case XPT_SET_TRAN_SETTINGS: 2307 case XPT_CALC_GEOMETRY: 2308 if (sdev == NULL) { 2309 SBP_DEBUG(1) 2310 printf("%s:%d:%jx:func_code 0x%04x: " 2311 "Invalid target (target needed)\n", 2312 device_get_nameunit(sbp->fd.dev), 2313 ccb->ccb_h.target_id, 2314 (uintmax_t)ccb->ccb_h.target_lun, 2315 ccb->ccb_h.func_code); 2316 END_DEBUG 2317 2318 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2319 xpt_done(ccb); 2320 return; 2321 } 2322 break; 2323 case XPT_PATH_INQ: 2324 case XPT_NOOP: 2325 /* The opcodes sometimes aimed at a target (sc is valid), 2326 * sometimes aimed at the SIM (sc is invalid and target is 2327 * CAM_TARGET_WILDCARD) 2328 */ 2329 if (sbp == NULL && 2330 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2331 SBP_DEBUG(0) 2332 printf("%s:%d:%jx func_code 0x%04x: " 2333 "Invalid target (no wildcard)\n", 2334 device_get_nameunit(sbp->fd.dev), 2335 ccb->ccb_h.target_id, 2336 (uintmax_t)ccb->ccb_h.target_lun, 2337 ccb->ccb_h.func_code); 2338 END_DEBUG 2339 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2340 xpt_done(ccb); 2341 return; 2342 } 2343 break; 2344 default: 2345 /* XXX Hm, we should check the input parameters */ 2346 break; 2347 } 2348 2349 switch (ccb->ccb_h.func_code) { 2350 case XPT_SCSI_IO: 2351 { 2352 struct ccb_scsiio *csio; 2353 struct sbp_ocb *ocb; 2354 int speed; 2355 void *cdb; 2356 2357 csio = &ccb->csio; 2358 mtx_assert(sim->mtx, MA_OWNED); 2359 2360 SBP_DEBUG(2) 2361 printf("%s:%d:%jx XPT_SCSI_IO: " 2362 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2363 ", flags: 0x%02x, " 2364 "%db cmd/%db data/%db sense\n", 2365 device_get_nameunit(sbp->fd.dev), 2366 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2367 csio->cdb_io.cdb_bytes[0], 2368 csio->cdb_io.cdb_bytes[1], 2369 csio->cdb_io.cdb_bytes[2], 2370 csio->cdb_io.cdb_bytes[3], 2371 csio->cdb_io.cdb_bytes[4], 2372 csio->cdb_io.cdb_bytes[5], 2373 csio->cdb_io.cdb_bytes[6], 2374 csio->cdb_io.cdb_bytes[7], 2375 csio->cdb_io.cdb_bytes[8], 2376 csio->cdb_io.cdb_bytes[9], 2377 ccb->ccb_h.flags & CAM_DIR_MASK, 2378 csio->cdb_len, csio->dxfer_len, 2379 csio->sense_len); 2380 END_DEBUG 2381 if (sdev == NULL) { 2382 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2383 xpt_done(ccb); 2384 return; 2385 } 2386 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { 2387 ccb->ccb_h.status = CAM_REQ_INVALID; 2388 xpt_done(ccb); 2389 return; 2390 } 2391 #if 0 2392 /* if we are in probe stage, pass only probe commands */ 2393 if (sdev->status == SBP_DEV_PROBE) { 2394 char *name; 2395 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2396 printf("probe stage, periph name: %s\n", name); 2397 if (strcmp(name, "probe") != 0) { 2398 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2399 xpt_done(ccb); 2400 return; 2401 } 2402 } 2403 #endif 2404 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2405 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2406 if (sdev->freeze == 0) { 2407 xpt_freeze_devq(sdev->path, 1); 2408 sdev->freeze++; 2409 } 2410 xpt_done(ccb); 2411 return; 2412 } 2413 2414 ocb->flags = OCB_ACT_CMD; 2415 ocb->sdev = sdev; 2416 ocb->ccb = ccb; 2417 ccb->ccb_h.ccb_sdev_ptr = sdev; 2418 ocb->orb[0] = htonl(1U << 31); 2419 ocb->orb[1] = 0; 2420 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2421 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2422 speed = min(target->fwdev->speed, max_speed); 2423 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2424 | ORB_CMD_MAXP(speed + 7)); 2425 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2426 ocb->orb[4] |= htonl(ORB_CMD_IN); 2427 } 2428 2429 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2430 cdb = (void *)csio->cdb_io.cdb_ptr; 2431 else 2432 cdb = (void *)&csio->cdb_io.cdb_bytes; 2433 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2434 /* 2435 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2436 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2437 */ 2438 if (ccb->csio.dxfer_len > 0) { 2439 int error; 2440 2441 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2442 /*dma map*/ocb->dmamap, 2443 ccb, 2444 sbp_execute_ocb, 2445 ocb, 2446 /*flags*/0); 2447 if (error) 2448 printf("sbp: bus_dmamap_load error %d\n", error); 2449 } else 2450 sbp_execute_ocb(ocb, NULL, 0, 0); 2451 break; 2452 } 2453 case XPT_CALC_GEOMETRY: 2454 { 2455 struct ccb_calc_geometry *ccg; 2456 2457 ccg = &ccb->ccg; 2458 if (ccg->block_size == 0) { 2459 printf("sbp_action: block_size is 0.\n"); 2460 ccb->ccb_h.status = CAM_REQ_INVALID; 2461 xpt_done(ccb); 2462 break; 2463 } 2464 SBP_DEBUG(1) 2465 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2466 "Volume size = %jd\n", 2467 device_get_nameunit(sbp->fd.dev), 2468 cam_sim_path(sbp->sim), 2469 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2470 (uintmax_t)ccg->volume_size); 2471 END_DEBUG 2472 2473 cam_calc_geometry(ccg, /*extended*/1); 2474 xpt_done(ccb); 2475 break; 2476 } 2477 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2478 { 2479 2480 SBP_DEBUG(1) 2481 printf("%s:%d:XPT_RESET_BUS: \n", 2482 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2483 END_DEBUG 2484 2485 ccb->ccb_h.status = CAM_REQ_INVALID; 2486 xpt_done(ccb); 2487 break; 2488 } 2489 case XPT_PATH_INQ: /* Path routing inquiry */ 2490 { 2491 struct ccb_pathinq *cpi = &ccb->cpi; 2492 2493 SBP_DEBUG(1) 2494 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2495 device_get_nameunit(sbp->fd.dev), 2496 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2497 END_DEBUG 2498 cpi->version_num = 1; /* XXX??? */ 2499 cpi->hba_inquiry = PI_TAG_ABLE; 2500 cpi->target_sprt = 0; 2501 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2502 cpi->hba_eng_cnt = 0; 2503 cpi->max_target = SBP_NUM_TARGETS - 1; 2504 cpi->max_lun = SBP_NUM_LUNS - 1; 2505 cpi->initiator_id = SBP_INITIATOR; 2506 cpi->bus_id = sim->bus_id; 2507 cpi->base_transfer_speed = 400 * 1000 / 8; 2508 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2509 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2510 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2511 cpi->unit_number = sim->unit_number; 2512 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2513 cpi->transport_version = 2; 2514 cpi->protocol = PROTO_SCSI; 2515 cpi->protocol_version = SCSI_REV_2; 2516 2517 cpi->ccb_h.status = CAM_REQ_CMP; 2518 xpt_done(ccb); 2519 break; 2520 } 2521 case XPT_GET_TRAN_SETTINGS: 2522 { 2523 struct ccb_trans_settings *cts = &ccb->cts; 2524 struct ccb_trans_settings_scsi *scsi = 2525 &cts->proto_specific.scsi; 2526 struct ccb_trans_settings_spi *spi = 2527 &cts->xport_specific.spi; 2528 2529 cts->protocol = PROTO_SCSI; 2530 cts->protocol_version = SCSI_REV_2; 2531 cts->transport = XPORT_SPI; /* should have a FireWire */ 2532 cts->transport_version = 2; 2533 spi->valid = CTS_SPI_VALID_DISC; 2534 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2535 scsi->valid = CTS_SCSI_VALID_TQ; 2536 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2537 SBP_DEBUG(1) 2538 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2539 device_get_nameunit(sbp->fd.dev), 2540 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2541 END_DEBUG 2542 cts->ccb_h.status = CAM_REQ_CMP; 2543 xpt_done(ccb); 2544 break; 2545 } 2546 case XPT_ABORT: 2547 ccb->ccb_h.status = CAM_UA_ABORT; 2548 xpt_done(ccb); 2549 break; 2550 case XPT_SET_TRAN_SETTINGS: 2551 /* XXX */ 2552 default: 2553 ccb->ccb_h.status = CAM_REQ_INVALID; 2554 xpt_done(ccb); 2555 break; 2556 } 2557 return; 2558 } 2559 2560 static void 2561 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2562 { 2563 int i; 2564 struct sbp_ocb *ocb; 2565 struct sbp_ocb *prev; 2566 bus_dma_segment_t *s; 2567 2568 if (error) 2569 printf("sbp_execute_ocb: error=%d\n", error); 2570 2571 ocb = (struct sbp_ocb *)arg; 2572 2573 SBP_DEBUG(2) 2574 printf("sbp_execute_ocb: seg %d", seg); 2575 for (i = 0; i < seg; i++) 2576 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2577 (uintmax_t)segments[i].ds_len); 2578 printf("\n"); 2579 END_DEBUG 2580 2581 if (seg == 1) { 2582 /* direct pointer */ 2583 s = &segments[0]; 2584 if (s->ds_len > SBP_SEG_MAX) 2585 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2586 ocb->orb[3] = htonl(s->ds_addr); 2587 ocb->orb[4] |= htonl(s->ds_len); 2588 } else if (seg > 1) { 2589 /* page table */ 2590 for (i = 0; i < seg; i++) { 2591 s = &segments[i]; 2592 SBP_DEBUG(0) 2593 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2594 if (s->ds_len < 16) 2595 printf("sbp_execute_ocb: warning, " 2596 "segment length(%zd) is less than 16." 2597 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2598 END_DEBUG 2599 if (s->ds_len > SBP_SEG_MAX) 2600 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2601 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2602 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2603 } 2604 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2605 } 2606 2607 if (seg > 0) 2608 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2609 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2610 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2611 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2612 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2613 if (use_doorbell) { 2614 if (prev == NULL) { 2615 if (ocb->sdev->last_ocb != NULL) 2616 sbp_doorbell(ocb->sdev); 2617 else 2618 sbp_orb_pointer(ocb->sdev, ocb); 2619 } 2620 } else { 2621 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2622 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2623 sbp_orb_pointer(ocb->sdev, ocb); 2624 } 2625 } 2626 } 2627 2628 static void 2629 sbp_poll(struct cam_sim *sim) 2630 { 2631 struct sbp_softc *sbp; 2632 struct firewire_comm *fc; 2633 2634 sbp = cam_sim_softc(sim); 2635 fc = sbp->fd.fc; 2636 2637 fc->poll(fc, 0, -1); 2638 2639 return; 2640 } 2641 2642 static struct sbp_ocb * 2643 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2644 { 2645 struct sbp_ocb *ocb; 2646 struct sbp_ocb *next; 2647 int order = 0; 2648 2649 SBP_DEBUG(1) 2650 device_printf(sdev->target->sbp->fd.dev, 2651 "%s:%s 0x%08x src %d\n", 2652 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2653 END_DEBUG 2654 SBP_LOCK_ASSERT(sdev->target->sbp); 2655 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2656 if (OCB_MATCH(ocb, sbp_status)) { 2657 /* found */ 2658 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2659 if (ocb->ccb != NULL) 2660 callout_stop(&ocb->timer); 2661 if (ntohl(ocb->orb[4]) & 0xffff) { 2662 bus_dmamap_sync(sdev->target->sbp->dmat, 2663 ocb->dmamap, 2664 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2665 BUS_DMASYNC_POSTREAD : 2666 BUS_DMASYNC_POSTWRITE); 2667 bus_dmamap_unload(sdev->target->sbp->dmat, 2668 ocb->dmamap); 2669 } 2670 if (!use_doorbell) { 2671 if (sbp_status->src == SRC_NO_NEXT) { 2672 if (next != NULL) 2673 sbp_orb_pointer(sdev, next); 2674 else if (order > 0) { 2675 /* 2676 * Unordered execution 2677 * We need to send pointer for 2678 * next ORB 2679 */ 2680 sdev->flags |= ORB_LINK_DEAD; 2681 } 2682 } 2683 } else { 2684 /* 2685 * XXX this is not correct for unordered 2686 * execution. 2687 */ 2688 if (sdev->last_ocb != NULL) { 2689 sbp_free_ocb(sdev, sdev->last_ocb); 2690 } 2691 sdev->last_ocb = ocb; 2692 if (next != NULL && 2693 sbp_status->src == SRC_NO_NEXT) 2694 sbp_doorbell(sdev); 2695 } 2696 break; 2697 } else 2698 order++; 2699 } 2700 SBP_DEBUG(0) 2701 if (ocb && order > 0) { 2702 device_printf(sdev->target->sbp->fd.dev, 2703 "%s:%s unordered execution order:%d\n", 2704 __func__, sdev->bustgtlun, order); 2705 } 2706 END_DEBUG 2707 return (ocb); 2708 } 2709 2710 static struct sbp_ocb * 2711 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2712 { 2713 struct sbp_ocb *prev, *prev2; 2714 2715 SBP_LOCK_ASSERT(sdev->target->sbp); 2716 SBP_DEBUG(1) 2717 device_printf(sdev->target->sbp->fd.dev, 2718 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2719 END_DEBUG 2720 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2721 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2722 2723 if (ocb->ccb != NULL) { 2724 callout_reset_sbt(&ocb->timer, 2725 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2726 ocb, 0); 2727 } 2728 2729 if (use_doorbell && prev == NULL) 2730 prev2 = sdev->last_ocb; 2731 2732 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2733 SBP_DEBUG(1) 2734 printf("linking chain 0x%jx -> 0x%jx\n", 2735 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2736 END_DEBUG 2737 /* 2738 * Suppress compiler optimization so that orb[1] must be written first. 2739 * XXX We may need an explicit memory barrier for other architectures 2740 * other than i386/amd64. 2741 */ 2742 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2743 *(volatile uint32_t *)&prev2->orb[0] = 0; 2744 } 2745 2746 return prev; 2747 } 2748 2749 static struct sbp_ocb * 2750 sbp_get_ocb(struct sbp_dev *sdev) 2751 { 2752 struct sbp_ocb *ocb; 2753 2754 SBP_LOCK_ASSERT(sdev->target->sbp); 2755 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2756 if (ocb == NULL) { 2757 sdev->flags |= ORB_SHORTAGE; 2758 printf("ocb shortage!!!\n"); 2759 return NULL; 2760 } 2761 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2762 ocb->ccb = NULL; 2763 return (ocb); 2764 } 2765 2766 static void 2767 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2768 { 2769 ocb->flags = 0; 2770 ocb->ccb = NULL; 2771 2772 SBP_LOCK_ASSERT(sdev->target->sbp); 2773 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2774 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2775 int count; 2776 2777 sdev->flags &= ~ORB_SHORTAGE; 2778 count = sdev->freeze; 2779 sdev->freeze = 0; 2780 xpt_release_devq(sdev->path, count, TRUE); 2781 } 2782 } 2783 2784 static void 2785 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2786 { 2787 struct sbp_dev *sdev; 2788 2789 sdev = ocb->sdev; 2790 SBP_LOCK_ASSERT(sdev->target->sbp); 2791 SBP_DEBUG(0) 2792 device_printf(sdev->target->sbp->fd.dev, 2793 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2794 END_DEBUG 2795 SBP_DEBUG(1) 2796 if (ocb->ccb != NULL) 2797 sbp_print_scsi_cmd(ocb); 2798 END_DEBUG 2799 if (ntohl(ocb->orb[4]) & 0xffff) { 2800 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2801 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2802 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2803 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2804 } 2805 if (ocb->ccb != NULL) { 2806 callout_stop(&ocb->timer); 2807 ocb->ccb->ccb_h.status = status; 2808 xpt_done(ocb->ccb); 2809 } 2810 sbp_free_ocb(sdev, ocb); 2811 } 2812 2813 static void 2814 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2815 { 2816 struct sbp_ocb *ocb, *next; 2817 STAILQ_HEAD(, sbp_ocb) temp; 2818 2819 STAILQ_INIT(&temp); 2820 SBP_LOCK_ASSERT(sdev->target->sbp); 2821 STAILQ_CONCAT(&temp, &sdev->ocbs); 2822 STAILQ_INIT(&sdev->ocbs); 2823 2824 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2825 sbp_abort_ocb(ocb, status); 2826 } 2827 if (sdev->last_ocb != NULL) { 2828 sbp_free_ocb(sdev, sdev->last_ocb); 2829 sdev->last_ocb = NULL; 2830 } 2831 } 2832 2833 static device_method_t sbp_methods[] = { 2834 /* device interface */ 2835 DEVMETHOD(device_identify, sbp_identify), 2836 DEVMETHOD(device_probe, sbp_probe), 2837 DEVMETHOD(device_attach, sbp_attach), 2838 DEVMETHOD(device_detach, sbp_detach), 2839 DEVMETHOD(device_shutdown, sbp_shutdown), 2840 2841 DEVMETHOD_END 2842 }; 2843 2844 static driver_t sbp_driver = { 2845 "sbp", 2846 sbp_methods, 2847 sizeof(struct sbp_softc), 2848 }; 2849 DRIVER_MODULE(sbp, firewire, sbp_driver, 0, 0); 2850 MODULE_VERSION(sbp, 1); 2851 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2852 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2853