1 /*- 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD$ 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 MIN(MAXPHYS, (512*1024) /* 512KB */) 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, 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 #ifdef __sparc64__ /* iommu */ 136 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 137 #else 138 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 139 #endif 140 struct sbp_ocb { 141 STAILQ_ENTRY(sbp_ocb) ocb; 142 union ccb *ccb; 143 bus_addr_t bus_addr; 144 uint32_t orb[8]; 145 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 146 struct ind_ptr ind_ptr[SBP_IND_MAX]; 147 struct sbp_dev *sdev; 148 int flags; /* XXX should be removed */ 149 bus_dmamap_t dmamap; 150 struct callout timer; 151 }; 152 153 #define OCB_ACT_MGM 0 154 #define OCB_ACT_CMD 1 155 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 156 157 struct sbp_dev { 158 #define SBP_DEV_RESET 0 /* accept login */ 159 #define SBP_DEV_LOGIN 1 /* to login */ 160 #if 0 161 #define SBP_DEV_RECONN 2 /* to reconnect */ 162 #endif 163 #define SBP_DEV_TOATTACH 3 /* to attach */ 164 #define SBP_DEV_PROBE 4 /* scan lun */ 165 #define SBP_DEV_ATTACHED 5 /* in operation */ 166 #define SBP_DEV_DEAD 6 /* unavailable unit */ 167 #define SBP_DEV_RETRY 7 /* unavailable unit */ 168 uint8_t status:4, 169 timeout:4; 170 uint8_t type; 171 uint16_t lun_id; 172 uint16_t freeze; 173 #define ORB_LINK_DEAD (1 << 0) 174 #define VALID_LUN (1 << 1) 175 #define ORB_POINTER_ACTIVE (1 << 2) 176 #define ORB_POINTER_NEED (1 << 3) 177 #define ORB_DOORBELL_ACTIVE (1 << 4) 178 #define ORB_DOORBELL_NEED (1 << 5) 179 #define ORB_SHORTAGE (1 << 6) 180 uint16_t flags; 181 struct cam_path *path; 182 struct sbp_target *target; 183 struct fwdma_alloc dma; 184 struct sbp_login_res *login; 185 struct callout login_callout; 186 struct sbp_ocb *ocb; 187 STAILQ_HEAD(, sbp_ocb) ocbs; 188 STAILQ_HEAD(, sbp_ocb) free_ocbs; 189 struct sbp_ocb *last_ocb; 190 char vendor[32]; 191 char product[32]; 192 char revision[10]; 193 char bustgtlun[32]; 194 }; 195 196 struct sbp_target { 197 int target_id; 198 int num_lun; 199 struct sbp_dev **luns; 200 struct sbp_softc *sbp; 201 struct fw_device *fwdev; 202 uint32_t mgm_hi, mgm_lo; 203 struct sbp_ocb *mgm_ocb_cur; 204 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 205 struct callout mgm_ocb_timeout; 206 struct callout scan_callout; 207 STAILQ_HEAD(, fw_xfer) xferlist; 208 int n_xfer; 209 }; 210 211 struct sbp_softc { 212 struct firewire_dev_comm fd; 213 struct cam_sim *sim; 214 struct cam_path *path; 215 struct sbp_target targets[SBP_NUM_TARGETS]; 216 struct fw_bind fwb; 217 bus_dma_tag_t dmat; 218 struct timeval last_busreset; 219 #define SIMQ_FREEZED 1 220 int flags; 221 struct mtx mtx; 222 }; 223 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 224 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 225 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED) 226 227 static void sbp_post_explore (void *); 228 static void sbp_recv (struct fw_xfer *); 229 static void sbp_mgm_callback (struct fw_xfer *); 230 #if 0 231 static void sbp_cmd_callback (struct fw_xfer *); 232 #endif 233 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 234 static void sbp_doorbell(struct sbp_dev *); 235 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 236 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 237 static void sbp_abort_ocb (struct sbp_ocb *, int); 238 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 239 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 240 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 241 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 242 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 243 static void sbp_cam_detach_sdev(struct sbp_dev *); 244 static void sbp_free_sdev(struct sbp_dev *); 245 static void sbp_cam_detach_target (struct sbp_target *); 246 static void sbp_free_target (struct sbp_target *); 247 static void sbp_mgm_timeout (void *arg); 248 static void sbp_timeout (void *arg); 249 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 250 251 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 252 253 /* cam related functions */ 254 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 255 static void sbp_poll(struct cam_sim *sim); 256 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 257 static void sbp_cam_scan_target(void *arg); 258 259 static char *orb_status0[] = { 260 /* 0 */ "No additional information to report", 261 /* 1 */ "Request type not supported", 262 /* 2 */ "Speed not supported", 263 /* 3 */ "Page size not supported", 264 /* 4 */ "Access denied", 265 /* 5 */ "Logical unit not supported", 266 /* 6 */ "Maximum payload too small", 267 /* 7 */ "Reserved for future standardization", 268 /* 8 */ "Resources unavailable", 269 /* 9 */ "Function rejected", 270 /* A */ "Login ID not recognized", 271 /* B */ "Dummy ORB completed", 272 /* C */ "Request aborted", 273 /* FF */ "Unspecified error" 274 #define MAX_ORB_STATUS0 0xd 275 }; 276 277 static char *orb_status1_object[] = { 278 /* 0 */ "Operation request block (ORB)", 279 /* 1 */ "Data buffer", 280 /* 2 */ "Page table", 281 /* 3 */ "Unable to specify" 282 }; 283 284 static char *orb_status1_serial_bus_error[] = { 285 /* 0 */ "Missing acknowledge", 286 /* 1 */ "Reserved; not to be used", 287 /* 2 */ "Time-out error", 288 /* 3 */ "Reserved; not to be used", 289 /* 4 */ "Busy retry limit exceeded(X)", 290 /* 5 */ "Busy retry limit exceeded(A)", 291 /* 6 */ "Busy retry limit exceeded(B)", 292 /* 7 */ "Reserved for future standardization", 293 /* 8 */ "Reserved for future standardization", 294 /* 9 */ "Reserved for future standardization", 295 /* A */ "Reserved for future standardization", 296 /* B */ "Tardy retry limit exceeded", 297 /* C */ "Conflict error", 298 /* D */ "Data error", 299 /* E */ "Type error", 300 /* F */ "Address error" 301 }; 302 303 static void 304 sbp_identify(driver_t *driver, device_t parent) 305 { 306 SBP_DEBUG(0) 307 printf("sbp_identify\n"); 308 END_DEBUG 309 310 if (device_find_child(parent, "sbp", -1) == NULL) 311 BUS_ADD_CHILD(parent, 0, "sbp", -1); 312 } 313 314 /* 315 * sbp_probe() 316 */ 317 static int 318 sbp_probe(device_t dev) 319 { 320 321 SBP_DEBUG(0) 322 printf("sbp_probe\n"); 323 END_DEBUG 324 325 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 326 327 #if 0 328 if (bootverbose) 329 debug = bootverbose; 330 #endif 331 332 return (0); 333 } 334 335 /* 336 * Display device characteristics on the console 337 */ 338 static void 339 sbp_show_sdev_info(struct sbp_dev *sdev) 340 { 341 struct fw_device *fwdev; 342 343 fwdev = sdev->target->fwdev; 344 device_printf(sdev->target->sbp->fd.dev, 345 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 346 "speed:%d maxrec:%d\n", 347 __func__, 348 sdev->bustgtlun, 349 (sdev->type & 0x40) >> 6, 350 (sdev->type & 0x1f), 351 fwdev->eui.hi, 352 fwdev->eui.lo, 353 fwdev->dst, 354 fwdev->speed, 355 fwdev->maxrec); 356 357 device_printf(sdev->target->sbp->fd.dev, 358 "%s: %s '%s' '%s' '%s'\n", 359 __func__, 360 sdev->bustgtlun, 361 sdev->vendor, 362 sdev->product, 363 sdev->revision); 364 } 365 366 static struct { 367 int bus; 368 int target; 369 struct fw_eui64 eui; 370 } wired[] = { 371 /* Bus Target EUI64 */ 372 #if 0 373 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 374 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 375 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 376 #endif 377 {-1, -1, {0,0}} 378 }; 379 380 static int 381 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 382 { 383 int bus, i, target=-1; 384 char w[SBP_NUM_TARGETS]; 385 386 bzero(w, sizeof(w)); 387 bus = device_get_unit(sbp->fd.dev); 388 389 /* XXX wired-down configuration should be gotten from 390 tunable or device hint */ 391 for (i = 0; wired[i].bus >= 0; i++) { 392 if (wired[i].bus == bus) { 393 w[wired[i].target] = 1; 394 if (wired[i].eui.hi == fwdev->eui.hi && 395 wired[i].eui.lo == fwdev->eui.lo) 396 target = wired[i].target; 397 } 398 } 399 if (target >= 0) { 400 if (target < SBP_NUM_TARGETS && 401 sbp->targets[target].fwdev == NULL) 402 return (target); 403 device_printf(sbp->fd.dev, 404 "target %d is not free for %08x:%08x\n", 405 target, fwdev->eui.hi, fwdev->eui.lo); 406 target = -1; 407 } 408 /* non-wired target */ 409 for (i = 0; i < SBP_NUM_TARGETS; i++) 410 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 411 target = i; 412 break; 413 } 414 415 return target; 416 } 417 418 static void 419 sbp_alloc_lun(struct sbp_target *target) 420 { 421 struct crom_context cc; 422 struct csrreg *reg; 423 struct sbp_dev *sdev, **newluns; 424 struct sbp_softc *sbp; 425 int maxlun, lun, i; 426 427 sbp = target->sbp; 428 crom_init_context(&cc, target->fwdev->csrrom); 429 /* XXX shoud parse appropriate unit directories only */ 430 maxlun = -1; 431 while (cc.depth >= 0) { 432 reg = crom_search_key(&cc, CROM_LUN); 433 if (reg == NULL) 434 break; 435 lun = reg->val & 0xffff; 436 SBP_DEBUG(0) 437 printf("target %d lun %d found\n", target->target_id, lun); 438 END_DEBUG 439 if (maxlun < lun) 440 maxlun = lun; 441 crom_next(&cc); 442 } 443 if (maxlun < 0) 444 device_printf(target->sbp->fd.dev, "%d no LUN found\n", 445 target->target_id); 446 447 maxlun++; 448 if (maxlun >= SBP_NUM_LUNS) 449 maxlun = SBP_NUM_LUNS; 450 451 /* Invalidiate stale devices */ 452 for (lun = 0; lun < target->num_lun; lun++) { 453 sdev = target->luns[lun]; 454 if (sdev == NULL) 455 continue; 456 sdev->flags &= ~VALID_LUN; 457 if (lun >= maxlun) { 458 /* lost device */ 459 sbp_cam_detach_sdev(sdev); 460 sbp_free_sdev(sdev); 461 target->luns[lun] = NULL; 462 } 463 } 464 465 /* Reallocate */ 466 if (maxlun != target->num_lun) { 467 newluns = (struct sbp_dev **) realloc(target->luns, 468 sizeof(struct sbp_dev *) * maxlun, 469 M_SBP, M_NOWAIT | M_ZERO); 470 471 if (newluns == NULL) { 472 printf("%s: realloc failed\n", __func__); 473 newluns = target->luns; 474 maxlun = target->num_lun; 475 } 476 477 /* 478 * We must zero the extended region for the case 479 * realloc() doesn't allocate new buffer. 480 */ 481 if (maxlun > target->num_lun) 482 bzero(&newluns[target->num_lun], 483 sizeof(struct sbp_dev *) * 484 (maxlun - target->num_lun)); 485 486 target->luns = newluns; 487 target->num_lun = maxlun; 488 } 489 490 crom_init_context(&cc, target->fwdev->csrrom); 491 while (cc.depth >= 0) { 492 int new = 0; 493 494 reg = crom_search_key(&cc, CROM_LUN); 495 if (reg == NULL) 496 break; 497 lun = reg->val & 0xffff; 498 if (lun >= SBP_NUM_LUNS) { 499 printf("too large lun %d\n", lun); 500 goto next; 501 } 502 503 sdev = target->luns[lun]; 504 if (sdev == NULL) { 505 sdev = malloc(sizeof(struct sbp_dev), 506 M_SBP, M_NOWAIT | M_ZERO); 507 if (sdev == NULL) { 508 printf("%s: malloc failed\n", __func__); 509 goto next; 510 } 511 target->luns[lun] = sdev; 512 sdev->lun_id = lun; 513 sdev->target = target; 514 STAILQ_INIT(&sdev->ocbs); 515 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); 516 sdev->status = SBP_DEV_RESET; 517 new = 1; 518 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 519 device_get_nameunit(sdev->target->sbp->fd.dev), 520 sdev->target->target_id, 521 sdev->lun_id); 522 } 523 sdev->flags |= VALID_LUN; 524 sdev->type = (reg->val & 0xff0000) >> 16; 525 526 if (new == 0) 527 goto next; 528 529 fwdma_malloc(sbp->fd.fc, 530 /* alignment */ sizeof(uint32_t), 531 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 532 BUS_DMA_COHERENT); 533 if (sdev->dma.v_addr == NULL) { 534 printf("%s: dma space allocation failed\n", 535 __func__); 536 free(sdev, M_SBP); 537 target->luns[lun] = NULL; 538 goto next; 539 } 540 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 541 sdev->ocb = (struct sbp_ocb *) 542 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 543 bzero((char *)sdev->ocb, 544 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 545 546 STAILQ_INIT(&sdev->free_ocbs); 547 for (i = 0; i < SBP_QUEUE_LEN; i++) { 548 struct sbp_ocb *ocb; 549 ocb = &sdev->ocb[i]; 550 ocb->bus_addr = sdev->dma.bus_addr 551 + SBP_LOGIN_SIZE 552 + sizeof(struct sbp_ocb) * i 553 + offsetof(struct sbp_ocb, orb[0]); 554 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 555 printf("sbp_attach: cannot create dmamap\n"); 556 /* XXX */ 557 goto next; 558 } 559 callout_init_mtx(&ocb->timer, &sbp->mtx, 0); 560 SBP_LOCK(sbp); 561 sbp_free_ocb(sdev, ocb); 562 SBP_UNLOCK(sbp); 563 } 564 next: 565 crom_next(&cc); 566 } 567 568 for (lun = 0; lun < target->num_lun; lun++) { 569 sdev = target->luns[lun]; 570 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 571 sbp_cam_detach_sdev(sdev); 572 sbp_free_sdev(sdev); 573 target->luns[lun] = NULL; 574 } 575 } 576 } 577 578 static struct sbp_target * 579 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 580 { 581 int i; 582 struct sbp_target *target; 583 struct crom_context cc; 584 struct csrreg *reg; 585 586 SBP_DEBUG(1) 587 printf("sbp_alloc_target\n"); 588 END_DEBUG 589 i = sbp_new_target(sbp, fwdev); 590 if (i < 0) { 591 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 592 return NULL; 593 } 594 /* new target */ 595 target = &sbp->targets[i]; 596 target->fwdev = fwdev; 597 target->target_id = i; 598 /* XXX we may want to reload mgm port after each bus reset */ 599 /* XXX there might be multiple management agents */ 600 crom_init_context(&cc, target->fwdev->csrrom); 601 reg = crom_search_key(&cc, CROM_MGM); 602 if (reg == NULL || reg->val == 0) { 603 printf("NULL management address\n"); 604 target->fwdev = NULL; 605 return NULL; 606 } 607 target->mgm_hi = 0xffff; 608 target->mgm_lo = 0xf0000000 | (reg->val << 2); 609 target->mgm_ocb_cur = NULL; 610 SBP_DEBUG(1) 611 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 612 END_DEBUG 613 STAILQ_INIT(&target->xferlist); 614 target->n_xfer = 0; 615 STAILQ_INIT(&target->mgm_ocb_queue); 616 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0); 617 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0); 618 619 target->luns = NULL; 620 target->num_lun = 0; 621 return target; 622 } 623 624 static void 625 sbp_probe_lun(struct sbp_dev *sdev) 626 { 627 struct fw_device *fwdev; 628 struct crom_context c, *cc = &c; 629 struct csrreg *reg; 630 631 bzero(sdev->vendor, sizeof(sdev->vendor)); 632 bzero(sdev->product, sizeof(sdev->product)); 633 634 fwdev = sdev->target->fwdev; 635 crom_init_context(cc, fwdev->csrrom); 636 /* get vendor string */ 637 crom_search_key(cc, CSRKEY_VENDOR); 638 crom_next(cc); 639 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 640 /* skip to the unit directory for SBP-2 */ 641 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 642 if (reg->val == CSRVAL_T10SBP2) 643 break; 644 crom_next(cc); 645 } 646 /* get firmware revision */ 647 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 648 if (reg != NULL) 649 snprintf(sdev->revision, sizeof(sdev->revision), 650 "%06x", reg->val); 651 /* get product string */ 652 crom_search_key(cc, CSRKEY_MODEL); 653 crom_next(cc); 654 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 655 } 656 657 static void 658 sbp_login_callout(void *arg) 659 { 660 struct sbp_dev *sdev = (struct sbp_dev *)arg; 661 SBP_LOCK_ASSERT(sdev->target->sbp); 662 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 663 } 664 665 static void 666 sbp_login(struct sbp_dev *sdev) 667 { 668 struct timeval delta; 669 struct timeval t; 670 int ticks = 0; 671 672 microtime(&delta); 673 timevalsub(&delta, &sdev->target->sbp->last_busreset); 674 t.tv_sec = login_delay / 1000; 675 t.tv_usec = (login_delay % 1000) * 1000; 676 timevalsub(&t, &delta); 677 if (t.tv_sec >= 0 && t.tv_usec > 0) 678 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 679 SBP_DEBUG(0) 680 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 681 (intmax_t)t.tv_sec, t.tv_usec, ticks); 682 END_DEBUG 683 callout_reset(&sdev->login_callout, ticks, 684 sbp_login_callout, (void *)(sdev)); 685 } 686 687 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 688 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 689 690 static void 691 sbp_probe_target(struct sbp_target *target) 692 { 693 struct sbp_softc *sbp = target->sbp; 694 struct sbp_dev *sdev; 695 int i, alive; 696 697 alive = SBP_FWDEV_ALIVE(target->fwdev); 698 SBP_DEBUG(1) 699 device_printf(sbp->fd.dev, "%s %d%salive\n", 700 __func__, target->target_id, 701 (!alive) ? " not " : ""); 702 END_DEBUG 703 704 sbp_alloc_lun(target); 705 706 /* XXX untimeout mgm_ocb and dequeue */ 707 for (i=0; i < target->num_lun; i++) { 708 sdev = target->luns[i]; 709 if (sdev == NULL) 710 continue; 711 if (alive && (sdev->status != SBP_DEV_DEAD)) { 712 if (sdev->path != NULL) { 713 xpt_freeze_devq(sdev->path, 1); 714 sdev->freeze++; 715 } 716 sbp_probe_lun(sdev); 717 sbp_show_sdev_info(sdev); 718 719 SBP_LOCK(sbp); 720 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 721 SBP_UNLOCK(sbp); 722 switch (sdev->status) { 723 case SBP_DEV_RESET: 724 /* new or revived target */ 725 if (auto_login) 726 sbp_login(sdev); 727 break; 728 case SBP_DEV_TOATTACH: 729 case SBP_DEV_PROBE: 730 case SBP_DEV_ATTACHED: 731 case SBP_DEV_RETRY: 732 default: 733 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 734 break; 735 } 736 } else { 737 switch (sdev->status) { 738 case SBP_DEV_ATTACHED: 739 SBP_DEBUG(0) 740 /* the device has gone */ 741 device_printf(sbp->fd.dev, "%s: lost target\n", 742 __func__); 743 END_DEBUG 744 if (sdev->path) { 745 xpt_freeze_devq(sdev->path, 1); 746 sdev->freeze++; 747 } 748 sdev->status = SBP_DEV_RETRY; 749 sbp_cam_detach_sdev(sdev); 750 sbp_free_sdev(sdev); 751 target->luns[i] = NULL; 752 break; 753 case SBP_DEV_PROBE: 754 case SBP_DEV_TOATTACH: 755 sdev->status = SBP_DEV_RESET; 756 break; 757 case SBP_DEV_RETRY: 758 case SBP_DEV_RESET: 759 case SBP_DEV_DEAD: 760 break; 761 } 762 } 763 } 764 } 765 766 static void 767 sbp_post_busreset(void *arg) 768 { 769 struct sbp_softc *sbp; 770 771 sbp = (struct sbp_softc *)arg; 772 SBP_DEBUG(0) 773 printf("sbp_post_busreset\n"); 774 END_DEBUG 775 SBP_LOCK(sbp); 776 if ((sbp->flags & SIMQ_FREEZED) == 0) { 777 xpt_freeze_simq(sbp->sim, /*count*/1); 778 sbp->flags |= SIMQ_FREEZED; 779 } 780 microtime(&sbp->last_busreset); 781 SBP_UNLOCK(sbp); 782 } 783 784 static void 785 sbp_post_explore(void *arg) 786 { 787 struct sbp_softc *sbp = (struct sbp_softc *)arg; 788 struct sbp_target *target; 789 struct fw_device *fwdev; 790 int i, alive; 791 792 SBP_DEBUG(0) 793 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 794 END_DEBUG 795 /* We need physical access */ 796 if (!firewire_phydma_enable) 797 return; 798 799 if (sbp_cold > 0) 800 sbp_cold--; 801 802 SBP_LOCK(sbp); 803 804 /* Garbage Collection */ 805 for (i = 0; i < SBP_NUM_TARGETS; i++) { 806 target = &sbp->targets[i]; 807 if (target->fwdev == NULL) 808 continue; 809 810 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 811 if (target->fwdev == fwdev) 812 break; 813 if (fwdev == NULL) { 814 /* device has removed in lower driver */ 815 sbp_cam_detach_target(target); 816 sbp_free_target(target); 817 } 818 } 819 820 /* traverse device list */ 821 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 822 SBP_DEBUG(0) 823 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 824 __func__, fwdev->eui.hi, fwdev->eui.lo, 825 (fwdev->status != FWDEVATTACHED) ? "not" : "", 826 fwdev->status); 827 END_DEBUG 828 alive = SBP_FWDEV_ALIVE(fwdev); 829 for (i = 0; i < SBP_NUM_TARGETS; i++) { 830 target = &sbp->targets[i]; 831 if (target->fwdev == fwdev) { 832 /* known target */ 833 break; 834 } 835 } 836 if (i == SBP_NUM_TARGETS) { 837 if (alive) { 838 /* new target */ 839 target = sbp_alloc_target(sbp, fwdev); 840 if (target == NULL) 841 continue; 842 } else { 843 continue; 844 } 845 } 846 847 /* 848 * It is safe to drop the lock here as the target is already 849 * reserved, so there should be no contenders for it. 850 * And the target is not yet exposed, so there should not be 851 * any other accesses to it. 852 * Finally, the list being iterated is protected somewhere else. 853 */ 854 SBP_UNLOCK(sbp); 855 sbp_probe_target(target); 856 SBP_LOCK(sbp); 857 if (target->num_lun == 0) 858 sbp_free_target(target); 859 } 860 if ((sbp->flags & SIMQ_FREEZED) != 0) { 861 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 862 sbp->flags &= ~SIMQ_FREEZED; 863 } 864 SBP_UNLOCK(sbp); 865 } 866 867 #if NEED_RESPONSE 868 static void 869 sbp_loginres_callback(struct fw_xfer *xfer) 870 { 871 struct sbp_dev *sdev; 872 sdev = (struct sbp_dev *)xfer->sc; 873 SBP_DEBUG(1) 874 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 875 END_DEBUG 876 /* recycle */ 877 SBP_LOCK(sdev->target->sbp); 878 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 879 SBP_UNLOCK(sdev->target->sbp); 880 return; 881 } 882 #endif 883 884 static __inline void 885 sbp_xfer_free(struct fw_xfer *xfer) 886 { 887 struct sbp_dev *sdev; 888 889 sdev = (struct sbp_dev *)xfer->sc; 890 fw_xfer_unload(xfer); 891 SBP_LOCK_ASSERT(sdev->target->sbp); 892 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 893 } 894 895 static void 896 sbp_reset_start_callback(struct fw_xfer *xfer) 897 { 898 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 899 struct sbp_target *target = sdev->target; 900 int i; 901 902 if (xfer->resp != 0) { 903 device_printf(sdev->target->sbp->fd.dev, 904 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 905 } 906 907 SBP_LOCK(target->sbp); 908 for (i = 0; i < target->num_lun; i++) { 909 tsdev = target->luns[i]; 910 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 911 sbp_login(tsdev); 912 } 913 SBP_UNLOCK(target->sbp); 914 } 915 916 static void 917 sbp_reset_start(struct sbp_dev *sdev) 918 { 919 struct fw_xfer *xfer; 920 struct fw_pkt *fp; 921 922 SBP_DEBUG(0) 923 device_printf(sdev->target->sbp->fd.dev, 924 "%s:%s\n", __func__,sdev->bustgtlun); 925 END_DEBUG 926 927 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 928 xfer->hand = sbp_reset_start_callback; 929 fp = &xfer->send.hdr; 930 fp->mode.wreqq.dest_hi = 0xffff; 931 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 932 fp->mode.wreqq.data = htonl(0xf); 933 fw_asyreq(xfer->fc, -1, xfer); 934 } 935 936 static void 937 sbp_mgm_callback(struct fw_xfer *xfer) 938 { 939 struct sbp_dev *sdev; 940 int resp; 941 942 sdev = (struct sbp_dev *)xfer->sc; 943 944 SBP_DEBUG(1) 945 device_printf(sdev->target->sbp->fd.dev, 946 "%s:%s\n", __func__, sdev->bustgtlun); 947 END_DEBUG 948 resp = xfer->resp; 949 SBP_LOCK(sdev->target->sbp); 950 sbp_xfer_free(xfer); 951 SBP_UNLOCK(sdev->target->sbp); 952 } 953 954 static struct sbp_dev * 955 sbp_next_dev(struct sbp_target *target, int lun) 956 { 957 struct sbp_dev **sdevp; 958 int i; 959 960 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 961 i++, sdevp++) 962 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 963 return (*sdevp); 964 return (NULL); 965 } 966 967 #define SCAN_PRI 1 968 static void 969 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 970 { 971 struct sbp_softc *sbp; 972 struct sbp_target *target; 973 struct sbp_dev *sdev; 974 975 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 976 target = sdev->target; 977 sbp = target->sbp; 978 SBP_LOCK(sbp); 979 SBP_DEBUG(0) 980 device_printf(sbp->fd.dev, 981 "%s:%s\n", __func__, sdev->bustgtlun); 982 END_DEBUG 983 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 984 sdev->status = SBP_DEV_ATTACHED; 985 } else { 986 device_printf(sbp->fd.dev, 987 "%s:%s failed\n", __func__, sdev->bustgtlun); 988 } 989 sdev = sbp_next_dev(target, sdev->lun_id + 1); 990 if (sdev == NULL) { 991 SBP_UNLOCK(sbp); 992 free(ccb, M_SBP); 993 return; 994 } 995 /* reuse ccb */ 996 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 997 ccb->ccb_h.ccb_sdev_ptr = sdev; 998 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 999 SBP_UNLOCK(sbp); 1000 1001 xpt_action(ccb); 1002 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1003 sdev->freeze = 1; 1004 } 1005 1006 static void 1007 sbp_cam_scan_target(void *arg) 1008 { 1009 struct sbp_target *target = (struct sbp_target *)arg; 1010 struct sbp_dev *sdev; 1011 union ccb *ccb; 1012 1013 SBP_LOCK_ASSERT(target->sbp); 1014 sdev = sbp_next_dev(target, 0); 1015 if (sdev == NULL) { 1016 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1017 target->target_id); 1018 return; 1019 } 1020 SBP_DEBUG(0) 1021 device_printf(sdev->target->sbp->fd.dev, 1022 "%s:%s\n", __func__, sdev->bustgtlun); 1023 END_DEBUG 1024 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1025 if (ccb == NULL) { 1026 printf("sbp_cam_scan_target: malloc failed\n"); 1027 return; 1028 } 1029 SBP_UNLOCK(target->sbp); 1030 1031 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1032 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1033 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1034 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1035 ccb->crcn.flags = CAM_FLAG_NONE; 1036 ccb->ccb_h.ccb_sdev_ptr = sdev; 1037 1038 /* The scan is in progress now. */ 1039 xpt_action(ccb); 1040 1041 SBP_LOCK(target->sbp); 1042 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1043 sdev->freeze = 1; 1044 } 1045 1046 static __inline void 1047 sbp_scan_dev(struct sbp_dev *sdev) 1048 { 1049 sdev->status = SBP_DEV_PROBE; 1050 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1051 sbp_cam_scan_target, (void *)sdev->target, 0); 1052 } 1053 1054 static void 1055 sbp_do_attach(struct fw_xfer *xfer) 1056 { 1057 struct sbp_dev *sdev; 1058 struct sbp_target *target; 1059 struct sbp_softc *sbp; 1060 1061 sdev = (struct sbp_dev *)xfer->sc; 1062 target = sdev->target; 1063 sbp = target->sbp; 1064 SBP_LOCK(sbp); 1065 SBP_DEBUG(0) 1066 device_printf(sdev->target->sbp->fd.dev, 1067 "%s:%s\n", __func__, sdev->bustgtlun); 1068 END_DEBUG 1069 sbp_xfer_free(xfer); 1070 1071 if (sdev->path == NULL) 1072 xpt_create_path(&sdev->path, NULL, 1073 cam_sim_path(target->sbp->sim), 1074 target->target_id, sdev->lun_id); 1075 1076 /* 1077 * Let CAM scan the bus if we are in the boot process. 1078 * XXX xpt_scan_bus cannot detect LUN larger than 0 1079 * if LUN 0 doesn't exist. 1080 */ 1081 if (sbp_cold > 0) { 1082 sdev->status = SBP_DEV_ATTACHED; 1083 SBP_UNLOCK(sbp); 1084 return; 1085 } 1086 1087 sbp_scan_dev(sdev); 1088 SBP_UNLOCK(sbp); 1089 } 1090 1091 static void 1092 sbp_agent_reset_callback(struct fw_xfer *xfer) 1093 { 1094 struct sbp_dev *sdev; 1095 1096 sdev = (struct sbp_dev *)xfer->sc; 1097 SBP_DEBUG(1) 1098 device_printf(sdev->target->sbp->fd.dev, 1099 "%s:%s\n", __func__, sdev->bustgtlun); 1100 END_DEBUG 1101 if (xfer->resp != 0) { 1102 device_printf(sdev->target->sbp->fd.dev, 1103 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1104 } 1105 1106 SBP_LOCK(sdev->target->sbp); 1107 sbp_xfer_free(xfer); 1108 if (sdev->path) { 1109 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1110 sdev->freeze = 0; 1111 } 1112 SBP_UNLOCK(sdev->target->sbp); 1113 } 1114 1115 static void 1116 sbp_agent_reset(struct sbp_dev *sdev) 1117 { 1118 struct fw_xfer *xfer; 1119 struct fw_pkt *fp; 1120 1121 SBP_LOCK_ASSERT(sdev->target->sbp); 1122 SBP_DEBUG(0) 1123 device_printf(sdev->target->sbp->fd.dev, 1124 "%s:%s\n", __func__, sdev->bustgtlun); 1125 END_DEBUG 1126 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1127 if (xfer == NULL) 1128 return; 1129 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1130 xfer->hand = sbp_agent_reset_callback; 1131 else 1132 xfer->hand = sbp_do_attach; 1133 fp = &xfer->send.hdr; 1134 fp->mode.wreqq.data = htonl(0xf); 1135 fw_asyreq(xfer->fc, -1, xfer); 1136 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1137 } 1138 1139 static void 1140 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1141 { 1142 struct sbp_dev *sdev; 1143 1144 sdev = (struct sbp_dev *)xfer->sc; 1145 SBP_DEBUG(1) 1146 device_printf(sdev->target->sbp->fd.dev, 1147 "%s:%s\n", __func__, sdev->bustgtlun); 1148 END_DEBUG 1149 SBP_LOCK(sdev->target->sbp); 1150 sbp_xfer_free(xfer); 1151 sbp_agent_reset(sdev); 1152 SBP_UNLOCK(sdev->target->sbp); 1153 } 1154 1155 static void 1156 sbp_busy_timeout(struct sbp_dev *sdev) 1157 { 1158 struct fw_pkt *fp; 1159 struct fw_xfer *xfer; 1160 SBP_DEBUG(0) 1161 device_printf(sdev->target->sbp->fd.dev, 1162 "%s:%s\n", __func__, sdev->bustgtlun); 1163 END_DEBUG 1164 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1165 1166 xfer->hand = sbp_busy_timeout_callback; 1167 fp = &xfer->send.hdr; 1168 fp->mode.wreqq.dest_hi = 0xffff; 1169 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1170 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1171 fw_asyreq(xfer->fc, -1, xfer); 1172 } 1173 1174 static void 1175 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1176 { 1177 struct sbp_dev *sdev; 1178 sdev = (struct sbp_dev *)xfer->sc; 1179 1180 SBP_DEBUG(2) 1181 device_printf(sdev->target->sbp->fd.dev, 1182 "%s:%s\n", __func__, sdev->bustgtlun); 1183 END_DEBUG 1184 if (xfer->resp != 0) { 1185 /* XXX */ 1186 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1187 } 1188 SBP_LOCK(sdev->target->sbp); 1189 sbp_xfer_free(xfer); 1190 1191 sdev->flags &= ~ORB_POINTER_ACTIVE; 1192 1193 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1194 struct sbp_ocb *ocb; 1195 1196 sdev->flags &= ~ORB_POINTER_NEED; 1197 ocb = STAILQ_FIRST(&sdev->ocbs); 1198 if (ocb != NULL) 1199 sbp_orb_pointer(sdev, ocb); 1200 } 1201 SBP_UNLOCK(sdev->target->sbp); 1202 return; 1203 } 1204 1205 static void 1206 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1207 { 1208 struct fw_xfer *xfer; 1209 struct fw_pkt *fp; 1210 SBP_DEBUG(1) 1211 device_printf(sdev->target->sbp->fd.dev, 1212 "%s:%s 0x%08x\n", 1213 __func__, sdev->bustgtlun, 1214 (uint32_t)ocb->bus_addr); 1215 END_DEBUG 1216 1217 SBP_LOCK_ASSERT(sdev->target->sbp); 1218 1219 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1220 SBP_DEBUG(0) 1221 printf("%s: orb pointer active\n", __func__); 1222 END_DEBUG 1223 sdev->flags |= ORB_POINTER_NEED; 1224 return; 1225 } 1226 1227 sdev->flags |= ORB_POINTER_ACTIVE; 1228 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1229 if (xfer == NULL) 1230 return; 1231 xfer->hand = sbp_orb_pointer_callback; 1232 1233 fp = &xfer->send.hdr; 1234 fp->mode.wreqb.len = 8; 1235 fp->mode.wreqb.extcode = 0; 1236 xfer->send.payload[0] = 1237 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1238 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1239 1240 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1241 sbp_xfer_free(xfer); 1242 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1243 xpt_done(ocb->ccb); 1244 } 1245 } 1246 1247 static void 1248 sbp_doorbell_callback(struct fw_xfer *xfer) 1249 { 1250 struct sbp_dev *sdev; 1251 sdev = (struct sbp_dev *)xfer->sc; 1252 1253 SBP_DEBUG(1) 1254 device_printf(sdev->target->sbp->fd.dev, 1255 "%s:%s\n", __func__, sdev->bustgtlun); 1256 END_DEBUG 1257 if (xfer->resp != 0) { 1258 /* XXX */ 1259 device_printf(sdev->target->sbp->fd.dev, 1260 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1261 } 1262 SBP_LOCK(sdev->target->sbp); 1263 sbp_xfer_free(xfer); 1264 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1265 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1266 sdev->flags &= ~ORB_DOORBELL_NEED; 1267 sbp_doorbell(sdev); 1268 } 1269 SBP_UNLOCK(sdev->target->sbp); 1270 } 1271 1272 static void 1273 sbp_doorbell(struct sbp_dev *sdev) 1274 { 1275 struct fw_xfer *xfer; 1276 struct fw_pkt *fp; 1277 SBP_DEBUG(1) 1278 device_printf(sdev->target->sbp->fd.dev, 1279 "%s:%s\n", __func__, sdev->bustgtlun); 1280 END_DEBUG 1281 1282 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1283 sdev->flags |= ORB_DOORBELL_NEED; 1284 return; 1285 } 1286 sdev->flags |= ORB_DOORBELL_ACTIVE; 1287 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1288 if (xfer == NULL) 1289 return; 1290 xfer->hand = sbp_doorbell_callback; 1291 fp = &xfer->send.hdr; 1292 fp->mode.wreqq.data = htonl(0xf); 1293 fw_asyreq(xfer->fc, -1, xfer); 1294 } 1295 1296 static struct fw_xfer * 1297 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1298 { 1299 struct fw_xfer *xfer; 1300 struct fw_pkt *fp; 1301 struct sbp_target *target; 1302 int new = 0; 1303 1304 SBP_LOCK_ASSERT(sdev->target->sbp); 1305 1306 target = sdev->target; 1307 xfer = STAILQ_FIRST(&target->xferlist); 1308 if (xfer == NULL) { 1309 if (target->n_xfer > 5 /* XXX */) { 1310 printf("sbp: no more xfer for this target\n"); 1311 return (NULL); 1312 } 1313 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1314 if (xfer == NULL) { 1315 printf("sbp: fw_xfer_alloc_buf failed\n"); 1316 return NULL; 1317 } 1318 target->n_xfer++; 1319 if (debug) 1320 printf("sbp: alloc %d xfer\n", target->n_xfer); 1321 new = 1; 1322 } else { 1323 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1324 } 1325 1326 if (new) { 1327 xfer->recv.pay_len = 0; 1328 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1329 xfer->fc = sdev->target->sbp->fd.fc; 1330 } 1331 1332 if (tcode == FWTCODE_WREQB) 1333 xfer->send.pay_len = 8; 1334 else 1335 xfer->send.pay_len = 0; 1336 1337 xfer->sc = (caddr_t)sdev; 1338 fp = &xfer->send.hdr; 1339 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1340 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1341 fp->mode.wreqq.tlrt = 0; 1342 fp->mode.wreqq.tcode = tcode; 1343 fp->mode.wreqq.pri = 0; 1344 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1345 1346 return xfer; 1347 } 1348 1349 static void 1350 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1351 { 1352 struct fw_xfer *xfer; 1353 struct fw_pkt *fp; 1354 struct sbp_ocb *ocb; 1355 struct sbp_target *target; 1356 int nid; 1357 1358 target = sdev->target; 1359 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1360 1361 SBP_LOCK_ASSERT(target->sbp); 1362 if (func == ORB_FUN_RUNQUEUE) { 1363 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1364 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1365 return; 1366 } 1367 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1368 goto start; 1369 } 1370 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1371 /* XXX */ 1372 return; 1373 } 1374 ocb->flags = OCB_ACT_MGM; 1375 ocb->sdev = sdev; 1376 1377 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1378 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1379 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1380 1381 SBP_DEBUG(0) 1382 device_printf(sdev->target->sbp->fd.dev, 1383 "%s:%s %s\n", 1384 __func__,sdev->bustgtlun, 1385 orb_fun_name[(func >> 16) & 0xf]); 1386 END_DEBUG 1387 switch (func) { 1388 case ORB_FUN_LGI: 1389 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1390 ocb->orb[2] = htonl(nid << 16); 1391 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1392 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1393 if (ex_login) 1394 ocb->orb[4] |= htonl(ORB_EXV); 1395 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1396 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1397 break; 1398 case ORB_FUN_ATA: 1399 ocb->orb[0] = htonl((0 << 16) | 0); 1400 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1401 /* fall through */ 1402 case ORB_FUN_RCN: 1403 case ORB_FUN_LGO: 1404 case ORB_FUN_LUR: 1405 case ORB_FUN_RST: 1406 case ORB_FUN_ATS: 1407 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1408 break; 1409 } 1410 1411 if (target->mgm_ocb_cur != NULL) { 1412 /* there is a standing ORB */ 1413 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1414 return; 1415 } 1416 start: 1417 target->mgm_ocb_cur = ocb; 1418 1419 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1420 sbp_mgm_timeout, (caddr_t)ocb); 1421 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1422 if (xfer == NULL) { 1423 return; 1424 } 1425 xfer->hand = sbp_mgm_callback; 1426 1427 fp = &xfer->send.hdr; 1428 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1429 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1430 fp->mode.wreqb.len = 8; 1431 fp->mode.wreqb.extcode = 0; 1432 xfer->send.payload[0] = htonl(nid << 16); 1433 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1434 1435 fw_asyreq(xfer->fc, -1, xfer); 1436 } 1437 1438 static void 1439 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1440 { 1441 struct ccb_scsiio *csio; 1442 1443 csio = &ocb->ccb->csio; 1444 printf("%s:%d:%jx XPT_SCSI_IO: " 1445 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1446 ", flags: 0x%02x, " 1447 "%db cmd/%db data/%db sense\n", 1448 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1449 ocb->ccb->ccb_h.target_id, 1450 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1451 csio->cdb_io.cdb_bytes[0], 1452 csio->cdb_io.cdb_bytes[1], 1453 csio->cdb_io.cdb_bytes[2], 1454 csio->cdb_io.cdb_bytes[3], 1455 csio->cdb_io.cdb_bytes[4], 1456 csio->cdb_io.cdb_bytes[5], 1457 csio->cdb_io.cdb_bytes[6], 1458 csio->cdb_io.cdb_bytes[7], 1459 csio->cdb_io.cdb_bytes[8], 1460 csio->cdb_io.cdb_bytes[9], 1461 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1462 csio->cdb_len, csio->dxfer_len, 1463 csio->sense_len); 1464 } 1465 1466 static void 1467 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1468 { 1469 struct sbp_cmd_status *sbp_cmd_status; 1470 struct scsi_sense_data_fixed *sense; 1471 1472 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1473 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1474 1475 SBP_DEBUG(0) 1476 sbp_print_scsi_cmd(ocb); 1477 /* XXX need decode status */ 1478 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1479 ocb->sdev->bustgtlun, 1480 sbp_cmd_status->status, 1481 sbp_cmd_status->sfmt, 1482 sbp_cmd_status->valid, 1483 sbp_cmd_status->s_key, 1484 sbp_cmd_status->s_code, 1485 sbp_cmd_status->s_qlfr, 1486 sbp_status->len); 1487 END_DEBUG 1488 1489 switch (sbp_cmd_status->status) { 1490 case SCSI_STATUS_CHECK_COND: 1491 case SCSI_STATUS_BUSY: 1492 case SCSI_STATUS_CMD_TERMINATED: 1493 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1494 sense->error_code = SSD_CURRENT_ERROR; 1495 } else { 1496 sense->error_code = SSD_DEFERRED_ERROR; 1497 } 1498 if (sbp_cmd_status->valid) 1499 sense->error_code |= SSD_ERRCODE_VALID; 1500 sense->flags = sbp_cmd_status->s_key; 1501 if (sbp_cmd_status->mark) 1502 sense->flags |= SSD_FILEMARK; 1503 if (sbp_cmd_status->eom) 1504 sense->flags |= SSD_EOM; 1505 if (sbp_cmd_status->ill_len) 1506 sense->flags |= SSD_ILI; 1507 1508 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1509 1510 if (sbp_status->len <= 1) 1511 /* XXX not scsi status. shouldn't be happened */ 1512 sense->extra_len = 0; 1513 else if (sbp_status->len <= 4) 1514 /* add_sense_code(_qual), info, cmd_spec_info */ 1515 sense->extra_len = 6; 1516 else 1517 /* fru, sense_key_spec */ 1518 sense->extra_len = 10; 1519 1520 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1521 1522 sense->add_sense_code = sbp_cmd_status->s_code; 1523 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1524 sense->fru = sbp_cmd_status->fru; 1525 1526 bcopy(&sbp_cmd_status->s_keydep[0], 1527 &sense->sense_key_spec[0], 3); 1528 1529 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1530 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1531 | CAM_AUTOSNS_VALID; 1532 /* 1533 { 1534 uint8_t j, *tmp; 1535 tmp = sense; 1536 for (j = 0; j < 32; j += 8) { 1537 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1538 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1539 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1540 } 1541 1542 } 1543 */ 1544 break; 1545 default: 1546 device_printf(ocb->sdev->target->sbp->fd.dev, 1547 "%s:%s unknown scsi status 0x%x\n", 1548 __func__, ocb->sdev->bustgtlun, 1549 sbp_cmd_status->status); 1550 } 1551 } 1552 1553 static void 1554 sbp_fix_inq_data(struct sbp_ocb *ocb) 1555 { 1556 union ccb *ccb; 1557 struct sbp_dev *sdev; 1558 struct scsi_inquiry_data *inq; 1559 1560 ccb = ocb->ccb; 1561 sdev = ocb->sdev; 1562 1563 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1564 return; 1565 SBP_DEBUG(1) 1566 device_printf(sdev->target->sbp->fd.dev, 1567 "%s:%s\n", __func__, sdev->bustgtlun); 1568 END_DEBUG 1569 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1570 switch (SID_TYPE(inq)) { 1571 case T_DIRECT: 1572 #if 0 1573 /* 1574 * XXX Convert Direct Access device to RBC. 1575 * I've never seen FireWire DA devices which support READ_6. 1576 */ 1577 if (SID_TYPE(inq) == T_DIRECT) 1578 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1579 #endif 1580 /* fall through */ 1581 case T_RBC: 1582 /* 1583 * Override vendor/product/revision information. 1584 * Some devices sometimes return strange strings. 1585 */ 1586 #if 1 1587 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1588 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1589 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1590 #endif 1591 break; 1592 } 1593 /* 1594 * Force to enable/disable tagged queuing. 1595 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1596 */ 1597 if (sbp_tags > 0) 1598 inq->flags |= SID_CmdQue; 1599 else if (sbp_tags < 0) 1600 inq->flags &= ~SID_CmdQue; 1601 1602 } 1603 1604 static void 1605 sbp_recv1(struct fw_xfer *xfer) 1606 { 1607 struct fw_pkt *rfp; 1608 #if NEED_RESPONSE 1609 struct fw_pkt *sfp; 1610 #endif 1611 struct sbp_softc *sbp; 1612 struct sbp_dev *sdev; 1613 struct sbp_ocb *ocb; 1614 struct sbp_login_res *login_res = NULL; 1615 struct sbp_status *sbp_status; 1616 struct sbp_target *target; 1617 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1618 uint32_t addr; 1619 /* 1620 uint32_t *ld; 1621 ld = xfer->recv.buf; 1622 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1623 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1624 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1625 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1626 */ 1627 sbp = (struct sbp_softc *)xfer->sc; 1628 SBP_LOCK_ASSERT(sbp); 1629 if (xfer->resp != 0) { 1630 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1631 goto done0; 1632 } 1633 if (xfer->recv.payload == NULL) { 1634 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1635 goto done0; 1636 } 1637 rfp = &xfer->recv.hdr; 1638 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1639 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1640 goto done0; 1641 } 1642 sbp_status = (struct sbp_status *)xfer->recv.payload; 1643 addr = rfp->mode.wreqb.dest_lo; 1644 SBP_DEBUG(2) 1645 printf("received address 0x%x\n", addr); 1646 END_DEBUG 1647 t = SBP_ADDR2TRG(addr); 1648 if (t >= SBP_NUM_TARGETS) { 1649 device_printf(sbp->fd.dev, 1650 "sbp_recv1: invalid target %d\n", t); 1651 goto done0; 1652 } 1653 target = &sbp->targets[t]; 1654 l = SBP_ADDR2LUN(addr); 1655 if (l >= target->num_lun || target->luns[l] == NULL) { 1656 device_printf(sbp->fd.dev, 1657 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1658 goto done0; 1659 } 1660 sdev = target->luns[l]; 1661 1662 ocb = NULL; 1663 switch (sbp_status->src) { 1664 case 0: 1665 case 1: 1666 /* check mgm_ocb_cur first */ 1667 ocb = target->mgm_ocb_cur; 1668 if (ocb != NULL) { 1669 if (OCB_MATCH(ocb, sbp_status)) { 1670 callout_stop(&target->mgm_ocb_timeout); 1671 target->mgm_ocb_cur = NULL; 1672 break; 1673 } 1674 } 1675 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1676 if (ocb == NULL) { 1677 device_printf(sdev->target->sbp->fd.dev, 1678 "%s:%s No ocb(%x) on the queue\n", 1679 __func__,sdev->bustgtlun, 1680 ntohl(sbp_status->orb_lo)); 1681 } 1682 break; 1683 case 2: 1684 /* unsolicit */ 1685 device_printf(sdev->target->sbp->fd.dev, 1686 "%s:%s unsolicit status received\n", 1687 __func__, sdev->bustgtlun); 1688 break; 1689 default: 1690 device_printf(sdev->target->sbp->fd.dev, 1691 "%s:%s unknown sbp_status->src\n", 1692 __func__, sdev->bustgtlun); 1693 } 1694 1695 status_valid0 = (sbp_status->src < 2 1696 && sbp_status->resp == ORB_RES_CMPL 1697 && sbp_status->dead == 0); 1698 status_valid = (status_valid0 && sbp_status->status == 0); 1699 1700 if (!status_valid0 || debug > 2) { 1701 int status; 1702 SBP_DEBUG(0) 1703 device_printf(sdev->target->sbp->fd.dev, 1704 "%s:%s ORB status src:%x resp:%x dead:%x" 1705 " len:%x stat:%x orb:%x%08x\n", 1706 __func__, sdev->bustgtlun, 1707 sbp_status->src, sbp_status->resp, sbp_status->dead, 1708 sbp_status->len, sbp_status->status, 1709 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1710 END_DEBUG 1711 device_printf(sdev->target->sbp->fd.dev, 1712 "%s\n", sdev->bustgtlun); 1713 status = sbp_status->status; 1714 switch (sbp_status->resp) { 1715 case 0: 1716 if (status > MAX_ORB_STATUS0) 1717 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1718 else 1719 printf("%s\n", orb_status0[status]); 1720 break; 1721 case 1: 1722 printf("Obj: %s, Error: %s\n", 1723 orb_status1_object[(status >> 6) & 3], 1724 orb_status1_serial_bus_error[status & 0xf]); 1725 break; 1726 case 2: 1727 printf("Illegal request\n"); 1728 break; 1729 case 3: 1730 printf("Vendor dependent\n"); 1731 break; 1732 default: 1733 printf("unknown respose code %d\n", sbp_status->resp); 1734 } 1735 } 1736 1737 /* we have to reset the fetch agent if it's dead */ 1738 if (sbp_status->dead) { 1739 if (sdev->path) { 1740 xpt_freeze_devq(sdev->path, 1); 1741 sdev->freeze++; 1742 } 1743 reset_agent = 1; 1744 } 1745 1746 if (ocb == NULL) 1747 goto done; 1748 1749 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1750 case ORB_FMT_NOP: 1751 break; 1752 case ORB_FMT_VED: 1753 break; 1754 case ORB_FMT_STD: 1755 switch (ocb->flags) { 1756 case OCB_ACT_MGM: 1757 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1758 reset_agent = 0; 1759 switch (orb_fun) { 1760 case ORB_FUN_LGI: 1761 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1762 login_res = sdev->login; 1763 login_res->len = ntohs(login_res->len); 1764 login_res->id = ntohs(login_res->id); 1765 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1766 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1767 if (status_valid) { 1768 SBP_DEBUG(0) 1769 device_printf(sdev->target->sbp->fd.dev, 1770 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1771 __func__, sdev->bustgtlun, 1772 login_res->len, login_res->id, 1773 login_res->cmd_hi, login_res->cmd_lo, 1774 ntohs(login_res->recon_hold)); 1775 END_DEBUG 1776 sbp_busy_timeout(sdev); 1777 } else { 1778 /* forgot logout? */ 1779 device_printf(sdev->target->sbp->fd.dev, 1780 "%s:%s login failed\n", 1781 __func__, sdev->bustgtlun); 1782 sdev->status = SBP_DEV_RESET; 1783 } 1784 break; 1785 case ORB_FUN_RCN: 1786 login_res = sdev->login; 1787 if (status_valid) { 1788 SBP_DEBUG(0) 1789 device_printf(sdev->target->sbp->fd.dev, 1790 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1791 __func__, sdev->bustgtlun, 1792 login_res->len, login_res->id, 1793 login_res->cmd_hi, login_res->cmd_lo); 1794 END_DEBUG 1795 if (sdev->status == SBP_DEV_ATTACHED) 1796 sbp_scan_dev(sdev); 1797 else 1798 sbp_agent_reset(sdev); 1799 } else { 1800 /* reconnection hold time exceed? */ 1801 SBP_DEBUG(0) 1802 device_printf(sdev->target->sbp->fd.dev, 1803 "%s:%s reconnect failed\n", 1804 __func__, sdev->bustgtlun); 1805 END_DEBUG 1806 sbp_login(sdev); 1807 } 1808 break; 1809 case ORB_FUN_LGO: 1810 sdev->status = SBP_DEV_RESET; 1811 break; 1812 case ORB_FUN_RST: 1813 sbp_busy_timeout(sdev); 1814 break; 1815 case ORB_FUN_LUR: 1816 case ORB_FUN_ATA: 1817 case ORB_FUN_ATS: 1818 sbp_agent_reset(sdev); 1819 break; 1820 default: 1821 device_printf(sdev->target->sbp->fd.dev, 1822 "%s:%s unknown function %d\n", 1823 __func__, sdev->bustgtlun, orb_fun); 1824 break; 1825 } 1826 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1827 break; 1828 case OCB_ACT_CMD: 1829 sdev->timeout = 0; 1830 if (ocb->ccb != NULL) { 1831 union ccb *ccb; 1832 1833 ccb = ocb->ccb; 1834 if (sbp_status->len > 1) { 1835 sbp_scsi_status(sbp_status, ocb); 1836 } else { 1837 if (sbp_status->resp != ORB_RES_CMPL) { 1838 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1839 } else { 1840 ccb->ccb_h.status = CAM_REQ_CMP; 1841 } 1842 } 1843 /* fix up inq data */ 1844 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1845 sbp_fix_inq_data(ocb); 1846 xpt_done(ccb); 1847 } 1848 break; 1849 default: 1850 break; 1851 } 1852 } 1853 1854 if (!use_doorbell) 1855 sbp_free_ocb(sdev, ocb); 1856 done: 1857 if (reset_agent) 1858 sbp_agent_reset(sdev); 1859 1860 done0: 1861 xfer->recv.pay_len = SBP_RECV_LEN; 1862 /* The received packet is usually small enough to be stored within 1863 * the buffer. In that case, the controller return ack_complete and 1864 * no respose is necessary. 1865 * 1866 * XXX fwohci.c and firewire.c should inform event_code such as 1867 * ack_complete or ack_pending to upper driver. 1868 */ 1869 #if NEED_RESPONSE 1870 xfer->send.off = 0; 1871 sfp = (struct fw_pkt *)xfer->send.buf; 1872 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1873 xfer->dst = sfp->mode.wres.dst; 1874 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1875 xfer->hand = sbp_loginres_callback; 1876 1877 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1878 sfp->mode.wres.tcode = FWTCODE_WRES; 1879 sfp->mode.wres.rtcode = 0; 1880 sfp->mode.wres.pri = 0; 1881 1882 fw_asyreq(xfer->fc, -1, xfer); 1883 #else 1884 /* recycle */ 1885 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1886 #endif 1887 } 1888 1889 static void 1890 sbp_recv(struct fw_xfer *xfer) 1891 { 1892 struct sbp_softc *sbp; 1893 1894 sbp = (struct sbp_softc *)xfer->sc; 1895 SBP_LOCK(sbp); 1896 sbp_recv1(xfer); 1897 SBP_UNLOCK(sbp); 1898 } 1899 /* 1900 * sbp_attach() 1901 */ 1902 static int 1903 sbp_attach(device_t dev) 1904 { 1905 struct sbp_softc *sbp; 1906 struct cam_devq *devq; 1907 struct firewire_comm *fc; 1908 int i, error; 1909 1910 if (DFLTPHYS > SBP_MAXPHYS) 1911 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1912 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1913 SBP_MAXPHYS / 1024); 1914 1915 if (!firewire_phydma_enable) 1916 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1917 "for SBP over FireWire.\n"); 1918 SBP_DEBUG(0) 1919 printf("sbp_attach (cold=%d)\n", cold); 1920 END_DEBUG 1921 1922 if (cold) 1923 sbp_cold++; 1924 sbp = device_get_softc(dev); 1925 sbp->fd.dev = dev; 1926 sbp->fd.fc = fc = device_get_ivars(dev); 1927 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1928 1929 if (max_speed < 0) 1930 max_speed = fc->speed; 1931 1932 error = bus_dma_tag_create(/*parent*/fc->dmat, 1933 /* XXX shoud be 4 for sane backend? */ 1934 /*alignment*/1, 1935 /*boundary*/0, 1936 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1937 /*highaddr*/BUS_SPACE_MAXADDR, 1938 /*filter*/NULL, /*filterarg*/NULL, 1939 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1940 /*maxsegsz*/SBP_SEG_MAX, 1941 /*flags*/BUS_DMA_ALLOCNOW, 1942 /*lockfunc*/busdma_lock_mutex, 1943 /*lockarg*/&sbp->mtx, 1944 &sbp->dmat); 1945 if (error != 0) { 1946 printf("sbp_attach: Could not allocate DMA tag " 1947 "- error %d\n", error); 1948 return (ENOMEM); 1949 } 1950 1951 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1952 if (devq == NULL) 1953 return (ENXIO); 1954 1955 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1956 sbp->targets[i].fwdev = NULL; 1957 sbp->targets[i].luns = NULL; 1958 sbp->targets[i].sbp = sbp; 1959 } 1960 1961 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1962 device_get_unit(dev), 1963 &sbp->mtx, 1964 /*untagged*/ 1, 1965 /*tagged*/ SBP_QUEUE_LEN - 1, 1966 devq); 1967 1968 if (sbp->sim == NULL) { 1969 cam_simq_free(devq); 1970 return (ENXIO); 1971 } 1972 1973 SBP_LOCK(sbp); 1974 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1975 goto fail; 1976 1977 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1978 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1979 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1980 goto fail; 1981 } 1982 SBP_UNLOCK(sbp); 1983 1984 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1985 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1986 sbp->fwb.end = sbp->fwb.start + 0xffff; 1987 /* pre-allocate xfer */ 1988 STAILQ_INIT(&sbp->fwb.xferlist); 1989 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1990 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1991 fc, (void *)sbp, sbp_recv); 1992 1993 fw_bindadd(fc, &sbp->fwb); 1994 1995 sbp->fd.post_busreset = sbp_post_busreset; 1996 sbp->fd.post_explore = sbp_post_explore; 1997 1998 if (fc->status != -1) { 1999 sbp_post_busreset(sbp); 2000 sbp_post_explore(sbp); 2001 } 2002 SBP_LOCK(sbp); 2003 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2004 SBP_UNLOCK(sbp); 2005 2006 return (0); 2007 fail: 2008 SBP_UNLOCK(sbp); 2009 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2010 return (ENXIO); 2011 } 2012 2013 static int 2014 sbp_logout_all(struct sbp_softc *sbp) 2015 { 2016 struct sbp_target *target; 2017 struct sbp_dev *sdev; 2018 int i, j; 2019 2020 SBP_DEBUG(0) 2021 printf("sbp_logout_all\n"); 2022 END_DEBUG 2023 SBP_LOCK_ASSERT(sbp); 2024 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2025 target = &sbp->targets[i]; 2026 if (target->luns == NULL) 2027 continue; 2028 for (j = 0; j < target->num_lun; j++) { 2029 sdev = target->luns[j]; 2030 if (sdev == NULL) 2031 continue; 2032 callout_stop(&sdev->login_callout); 2033 if (sdev->status >= SBP_DEV_TOATTACH && 2034 sdev->status <= SBP_DEV_ATTACHED) 2035 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2036 } 2037 } 2038 2039 return 0; 2040 } 2041 2042 static int 2043 sbp_shutdown(device_t dev) 2044 { 2045 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2046 2047 SBP_LOCK(sbp); 2048 sbp_logout_all(sbp); 2049 SBP_UNLOCK(sbp); 2050 return (0); 2051 } 2052 2053 static void 2054 sbp_free_sdev(struct sbp_dev *sdev) 2055 { 2056 struct sbp_softc *sbp; 2057 int i; 2058 2059 if (sdev == NULL) 2060 return; 2061 sbp = sdev->target->sbp; 2062 SBP_UNLOCK(sbp); 2063 callout_drain(&sdev->login_callout); 2064 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2065 callout_drain(&sdev->ocb[i].timer); 2066 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2067 } 2068 fwdma_free(sbp->fd.fc, &sdev->dma); 2069 free(sdev, M_SBP); 2070 SBP_LOCK(sbp); 2071 } 2072 2073 static void 2074 sbp_free_target(struct sbp_target *target) 2075 { 2076 struct sbp_softc *sbp; 2077 struct fw_xfer *xfer, *next; 2078 int i; 2079 2080 if (target->luns == NULL) 2081 return; 2082 sbp = target->sbp; 2083 SBP_LOCK_ASSERT(sbp); 2084 SBP_UNLOCK(sbp); 2085 callout_drain(&target->mgm_ocb_timeout); 2086 callout_drain(&target->scan_callout); 2087 SBP_LOCK(sbp); 2088 for (i = 0; i < target->num_lun; i++) 2089 sbp_free_sdev(target->luns[i]); 2090 2091 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2092 fw_xfer_free_buf(xfer); 2093 } 2094 STAILQ_INIT(&target->xferlist); 2095 free(target->luns, M_SBP); 2096 target->num_lun = 0; 2097 target->luns = NULL; 2098 target->fwdev = NULL; 2099 } 2100 2101 static int 2102 sbp_detach(device_t dev) 2103 { 2104 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2105 struct firewire_comm *fc = sbp->fd.fc; 2106 int i; 2107 2108 SBP_DEBUG(0) 2109 printf("sbp_detach\n"); 2110 END_DEBUG 2111 2112 SBP_LOCK(sbp); 2113 for (i = 0; i < SBP_NUM_TARGETS; i++) 2114 sbp_cam_detach_target(&sbp->targets[i]); 2115 2116 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2117 xpt_free_path(sbp->path); 2118 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2119 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2120 2121 sbp_logout_all(sbp); 2122 SBP_UNLOCK(sbp); 2123 2124 /* XXX wait for logout completion */ 2125 pause("sbpdtc", hz/2); 2126 2127 SBP_LOCK(sbp); 2128 for (i = 0; i < SBP_NUM_TARGETS; i++) 2129 sbp_free_target(&sbp->targets[i]); 2130 SBP_UNLOCK(sbp); 2131 2132 fw_bindremove(fc, &sbp->fwb); 2133 fw_xferlist_remove(&sbp->fwb.xferlist); 2134 2135 bus_dma_tag_destroy(sbp->dmat); 2136 mtx_destroy(&sbp->mtx); 2137 2138 return (0); 2139 } 2140 2141 static void 2142 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2143 { 2144 if (sdev == NULL) 2145 return; 2146 if (sdev->status == SBP_DEV_DEAD) 2147 return; 2148 if (sdev->status == SBP_DEV_RESET) 2149 return; 2150 SBP_LOCK_ASSERT(sdev->target->sbp); 2151 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2152 if (sdev->path) { 2153 xpt_release_devq(sdev->path, 2154 sdev->freeze, TRUE); 2155 sdev->freeze = 0; 2156 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2157 xpt_free_path(sdev->path); 2158 sdev->path = NULL; 2159 } 2160 } 2161 2162 static void 2163 sbp_cam_detach_target(struct sbp_target *target) 2164 { 2165 int i; 2166 2167 SBP_LOCK_ASSERT(target->sbp); 2168 if (target->luns != NULL) { 2169 SBP_DEBUG(0) 2170 printf("sbp_detach_target %d\n", target->target_id); 2171 END_DEBUG 2172 callout_stop(&target->scan_callout); 2173 for (i = 0; i < target->num_lun; i++) 2174 sbp_cam_detach_sdev(target->luns[i]); 2175 } 2176 } 2177 2178 static void 2179 sbp_target_reset(struct sbp_dev *sdev, int method) 2180 { 2181 int i; 2182 struct sbp_target *target = sdev->target; 2183 struct sbp_dev *tsdev; 2184 2185 SBP_LOCK_ASSERT(target->sbp); 2186 for (i = 0; i < target->num_lun; i++) { 2187 tsdev = target->luns[i]; 2188 if (tsdev == NULL) 2189 continue; 2190 if (tsdev->status == SBP_DEV_DEAD) 2191 continue; 2192 if (tsdev->status == SBP_DEV_RESET) 2193 continue; 2194 xpt_freeze_devq(tsdev->path, 1); 2195 tsdev->freeze++; 2196 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2197 if (method == 2) 2198 tsdev->status = SBP_DEV_LOGIN; 2199 } 2200 switch (method) { 2201 case 1: 2202 printf("target reset\n"); 2203 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2204 break; 2205 case 2: 2206 printf("reset start\n"); 2207 sbp_reset_start(sdev); 2208 break; 2209 } 2210 2211 } 2212 2213 static void 2214 sbp_mgm_timeout(void *arg) 2215 { 2216 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2217 struct sbp_dev *sdev = ocb->sdev; 2218 struct sbp_target *target = sdev->target; 2219 2220 SBP_LOCK_ASSERT(target->sbp); 2221 device_printf(sdev->target->sbp->fd.dev, 2222 "%s:%s request timeout(mgm orb:0x%08x)\n", 2223 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2224 target->mgm_ocb_cur = NULL; 2225 sbp_free_ocb(sdev, ocb); 2226 #if 0 2227 /* XXX */ 2228 printf("run next request\n"); 2229 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2230 #endif 2231 device_printf(sdev->target->sbp->fd.dev, 2232 "%s:%s reset start\n", 2233 __func__, sdev->bustgtlun); 2234 sbp_reset_start(sdev); 2235 } 2236 2237 static void 2238 sbp_timeout(void *arg) 2239 { 2240 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2241 struct sbp_dev *sdev = ocb->sdev; 2242 2243 device_printf(sdev->target->sbp->fd.dev, 2244 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2245 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2246 2247 SBP_LOCK_ASSERT(sdev->target->sbp); 2248 sdev->timeout++; 2249 switch (sdev->timeout) { 2250 case 1: 2251 printf("agent reset\n"); 2252 xpt_freeze_devq(sdev->path, 1); 2253 sdev->freeze++; 2254 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2255 sbp_agent_reset(sdev); 2256 break; 2257 case 2: 2258 case 3: 2259 sbp_target_reset(sdev, sdev->timeout - 1); 2260 break; 2261 #if 0 2262 default: 2263 /* XXX give up */ 2264 sbp_cam_detach_target(target); 2265 if (target->luns != NULL) 2266 free(target->luns, M_SBP); 2267 target->num_lun = 0; 2268 target->luns = NULL; 2269 target->fwdev = NULL; 2270 #endif 2271 } 2272 } 2273 2274 static void 2275 sbp_action(struct cam_sim *sim, union ccb *ccb) 2276 { 2277 2278 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2279 struct sbp_target *target = NULL; 2280 struct sbp_dev *sdev = NULL; 2281 2282 if (sbp != NULL) 2283 SBP_LOCK_ASSERT(sbp); 2284 /* target:lun -> sdev mapping */ 2285 if (sbp != NULL 2286 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2287 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2288 target = &sbp->targets[ccb->ccb_h.target_id]; 2289 if (target->fwdev != NULL 2290 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2291 && ccb->ccb_h.target_lun < target->num_lun) { 2292 sdev = target->luns[ccb->ccb_h.target_lun]; 2293 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2294 sdev->status != SBP_DEV_PROBE) 2295 sdev = NULL; 2296 } 2297 } 2298 2299 SBP_DEBUG(1) 2300 if (sdev == NULL) 2301 printf("invalid target %d lun %jx\n", 2302 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2303 END_DEBUG 2304 2305 switch (ccb->ccb_h.func_code) { 2306 case XPT_SCSI_IO: 2307 case XPT_RESET_DEV: 2308 case XPT_GET_TRAN_SETTINGS: 2309 case XPT_SET_TRAN_SETTINGS: 2310 case XPT_CALC_GEOMETRY: 2311 if (sdev == NULL) { 2312 SBP_DEBUG(1) 2313 printf("%s:%d:%jx:func_code 0x%04x: " 2314 "Invalid target (target needed)\n", 2315 device_get_nameunit(sbp->fd.dev), 2316 ccb->ccb_h.target_id, 2317 (uintmax_t)ccb->ccb_h.target_lun, 2318 ccb->ccb_h.func_code); 2319 END_DEBUG 2320 2321 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2322 xpt_done(ccb); 2323 return; 2324 } 2325 break; 2326 case XPT_PATH_INQ: 2327 case XPT_NOOP: 2328 /* The opcodes sometimes aimed at a target (sc is valid), 2329 * sometimes aimed at the SIM (sc is invalid and target is 2330 * CAM_TARGET_WILDCARD) 2331 */ 2332 if (sbp == NULL && 2333 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2334 SBP_DEBUG(0) 2335 printf("%s:%d:%jx func_code 0x%04x: " 2336 "Invalid target (no wildcard)\n", 2337 device_get_nameunit(sbp->fd.dev), 2338 ccb->ccb_h.target_id, 2339 (uintmax_t)ccb->ccb_h.target_lun, 2340 ccb->ccb_h.func_code); 2341 END_DEBUG 2342 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2343 xpt_done(ccb); 2344 return; 2345 } 2346 break; 2347 default: 2348 /* XXX Hm, we should check the input parameters */ 2349 break; 2350 } 2351 2352 switch (ccb->ccb_h.func_code) { 2353 case XPT_SCSI_IO: 2354 { 2355 struct ccb_scsiio *csio; 2356 struct sbp_ocb *ocb; 2357 int speed; 2358 void *cdb; 2359 2360 csio = &ccb->csio; 2361 mtx_assert(sim->mtx, MA_OWNED); 2362 2363 SBP_DEBUG(2) 2364 printf("%s:%d:%jx XPT_SCSI_IO: " 2365 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2366 ", flags: 0x%02x, " 2367 "%db cmd/%db data/%db sense\n", 2368 device_get_nameunit(sbp->fd.dev), 2369 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2370 csio->cdb_io.cdb_bytes[0], 2371 csio->cdb_io.cdb_bytes[1], 2372 csio->cdb_io.cdb_bytes[2], 2373 csio->cdb_io.cdb_bytes[3], 2374 csio->cdb_io.cdb_bytes[4], 2375 csio->cdb_io.cdb_bytes[5], 2376 csio->cdb_io.cdb_bytes[6], 2377 csio->cdb_io.cdb_bytes[7], 2378 csio->cdb_io.cdb_bytes[8], 2379 csio->cdb_io.cdb_bytes[9], 2380 ccb->ccb_h.flags & CAM_DIR_MASK, 2381 csio->cdb_len, csio->dxfer_len, 2382 csio->sense_len); 2383 END_DEBUG 2384 if (sdev == NULL) { 2385 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2386 xpt_done(ccb); 2387 return; 2388 } 2389 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { 2390 ccb->ccb_h.status = CAM_REQ_INVALID; 2391 xpt_done(ccb); 2392 return; 2393 } 2394 #if 0 2395 /* if we are in probe stage, pass only probe commands */ 2396 if (sdev->status == SBP_DEV_PROBE) { 2397 char *name; 2398 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2399 printf("probe stage, periph name: %s\n", name); 2400 if (strcmp(name, "probe") != 0) { 2401 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2402 xpt_done(ccb); 2403 return; 2404 } 2405 } 2406 #endif 2407 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2408 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2409 if (sdev->freeze == 0) { 2410 xpt_freeze_devq(sdev->path, 1); 2411 sdev->freeze++; 2412 } 2413 xpt_done(ccb); 2414 return; 2415 } 2416 2417 ocb->flags = OCB_ACT_CMD; 2418 ocb->sdev = sdev; 2419 ocb->ccb = ccb; 2420 ccb->ccb_h.ccb_sdev_ptr = sdev; 2421 ocb->orb[0] = htonl(1U << 31); 2422 ocb->orb[1] = 0; 2423 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2424 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2425 speed = min(target->fwdev->speed, max_speed); 2426 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2427 | ORB_CMD_MAXP(speed + 7)); 2428 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2429 ocb->orb[4] |= htonl(ORB_CMD_IN); 2430 } 2431 2432 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2433 cdb = (void *)csio->cdb_io.cdb_ptr; 2434 else 2435 cdb = (void *)&csio->cdb_io.cdb_bytes; 2436 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2437 /* 2438 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2439 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2440 */ 2441 if (ccb->csio.dxfer_len > 0) { 2442 int error; 2443 2444 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2445 /*dma map*/ocb->dmamap, 2446 ccb, 2447 sbp_execute_ocb, 2448 ocb, 2449 /*flags*/0); 2450 if (error) 2451 printf("sbp: bus_dmamap_load error %d\n", error); 2452 } else 2453 sbp_execute_ocb(ocb, NULL, 0, 0); 2454 break; 2455 } 2456 case XPT_CALC_GEOMETRY: 2457 { 2458 struct ccb_calc_geometry *ccg; 2459 2460 ccg = &ccb->ccg; 2461 if (ccg->block_size == 0) { 2462 printf("sbp_action: block_size is 0.\n"); 2463 ccb->ccb_h.status = CAM_REQ_INVALID; 2464 xpt_done(ccb); 2465 break; 2466 } 2467 SBP_DEBUG(1) 2468 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2469 "Volume size = %jd\n", 2470 device_get_nameunit(sbp->fd.dev), 2471 cam_sim_path(sbp->sim), 2472 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2473 (uintmax_t)ccg->volume_size); 2474 END_DEBUG 2475 2476 cam_calc_geometry(ccg, /*extended*/1); 2477 xpt_done(ccb); 2478 break; 2479 } 2480 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2481 { 2482 2483 SBP_DEBUG(1) 2484 printf("%s:%d:XPT_RESET_BUS: \n", 2485 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2486 END_DEBUG 2487 2488 ccb->ccb_h.status = CAM_REQ_INVALID; 2489 xpt_done(ccb); 2490 break; 2491 } 2492 case XPT_PATH_INQ: /* Path routing inquiry */ 2493 { 2494 struct ccb_pathinq *cpi = &ccb->cpi; 2495 2496 SBP_DEBUG(1) 2497 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2498 device_get_nameunit(sbp->fd.dev), 2499 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2500 END_DEBUG 2501 cpi->version_num = 1; /* XXX??? */ 2502 cpi->hba_inquiry = PI_TAG_ABLE; 2503 cpi->target_sprt = 0; 2504 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2505 cpi->hba_eng_cnt = 0; 2506 cpi->max_target = SBP_NUM_TARGETS - 1; 2507 cpi->max_lun = SBP_NUM_LUNS - 1; 2508 cpi->initiator_id = SBP_INITIATOR; 2509 cpi->bus_id = sim->bus_id; 2510 cpi->base_transfer_speed = 400 * 1000 / 8; 2511 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2512 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2513 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2514 cpi->unit_number = sim->unit_number; 2515 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2516 cpi->transport_version = 2; 2517 cpi->protocol = PROTO_SCSI; 2518 cpi->protocol_version = SCSI_REV_2; 2519 2520 cpi->ccb_h.status = CAM_REQ_CMP; 2521 xpt_done(ccb); 2522 break; 2523 } 2524 case XPT_GET_TRAN_SETTINGS: 2525 { 2526 struct ccb_trans_settings *cts = &ccb->cts; 2527 struct ccb_trans_settings_scsi *scsi = 2528 &cts->proto_specific.scsi; 2529 struct ccb_trans_settings_spi *spi = 2530 &cts->xport_specific.spi; 2531 2532 cts->protocol = PROTO_SCSI; 2533 cts->protocol_version = SCSI_REV_2; 2534 cts->transport = XPORT_SPI; /* should have a FireWire */ 2535 cts->transport_version = 2; 2536 spi->valid = CTS_SPI_VALID_DISC; 2537 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2538 scsi->valid = CTS_SCSI_VALID_TQ; 2539 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2540 SBP_DEBUG(1) 2541 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2542 device_get_nameunit(sbp->fd.dev), 2543 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2544 END_DEBUG 2545 cts->ccb_h.status = CAM_REQ_CMP; 2546 xpt_done(ccb); 2547 break; 2548 } 2549 case XPT_ABORT: 2550 ccb->ccb_h.status = CAM_UA_ABORT; 2551 xpt_done(ccb); 2552 break; 2553 case XPT_SET_TRAN_SETTINGS: 2554 /* XXX */ 2555 default: 2556 ccb->ccb_h.status = CAM_REQ_INVALID; 2557 xpt_done(ccb); 2558 break; 2559 } 2560 return; 2561 } 2562 2563 static void 2564 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2565 { 2566 int i; 2567 struct sbp_ocb *ocb; 2568 struct sbp_ocb *prev; 2569 bus_dma_segment_t *s; 2570 2571 if (error) 2572 printf("sbp_execute_ocb: error=%d\n", error); 2573 2574 ocb = (struct sbp_ocb *)arg; 2575 2576 SBP_DEBUG(2) 2577 printf("sbp_execute_ocb: seg %d", seg); 2578 for (i = 0; i < seg; i++) 2579 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2580 (uintmax_t)segments[i].ds_len); 2581 printf("\n"); 2582 END_DEBUG 2583 2584 if (seg == 1) { 2585 /* direct pointer */ 2586 s = &segments[0]; 2587 if (s->ds_len > SBP_SEG_MAX) 2588 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2589 ocb->orb[3] = htonl(s->ds_addr); 2590 ocb->orb[4] |= htonl(s->ds_len); 2591 } else if (seg > 1) { 2592 /* page table */ 2593 for (i = 0; i < seg; i++) { 2594 s = &segments[i]; 2595 SBP_DEBUG(0) 2596 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2597 if (s->ds_len < 16) 2598 printf("sbp_execute_ocb: warning, " 2599 "segment length(%zd) is less than 16." 2600 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2601 END_DEBUG 2602 if (s->ds_len > SBP_SEG_MAX) 2603 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2604 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2605 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2606 } 2607 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2608 } 2609 2610 if (seg > 0) 2611 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2612 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2613 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2614 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2615 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2616 if (use_doorbell) { 2617 if (prev == NULL) { 2618 if (ocb->sdev->last_ocb != NULL) 2619 sbp_doorbell(ocb->sdev); 2620 else 2621 sbp_orb_pointer(ocb->sdev, ocb); 2622 } 2623 } else { 2624 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2625 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2626 sbp_orb_pointer(ocb->sdev, ocb); 2627 } 2628 } 2629 } 2630 2631 static void 2632 sbp_poll(struct cam_sim *sim) 2633 { 2634 struct sbp_softc *sbp; 2635 struct firewire_comm *fc; 2636 2637 sbp = (struct sbp_softc *)sim->softc; 2638 fc = sbp->fd.fc; 2639 2640 fc->poll(fc, 0, -1); 2641 2642 return; 2643 } 2644 2645 static struct sbp_ocb * 2646 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2647 { 2648 struct sbp_ocb *ocb; 2649 struct sbp_ocb *next; 2650 int order = 0; 2651 2652 SBP_DEBUG(1) 2653 device_printf(sdev->target->sbp->fd.dev, 2654 "%s:%s 0x%08x src %d\n", 2655 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2656 END_DEBUG 2657 SBP_LOCK_ASSERT(sdev->target->sbp); 2658 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2659 if (OCB_MATCH(ocb, sbp_status)) { 2660 /* found */ 2661 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2662 if (ocb->ccb != NULL) 2663 callout_stop(&ocb->timer); 2664 if (ntohl(ocb->orb[4]) & 0xffff) { 2665 bus_dmamap_sync(sdev->target->sbp->dmat, 2666 ocb->dmamap, 2667 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2668 BUS_DMASYNC_POSTREAD : 2669 BUS_DMASYNC_POSTWRITE); 2670 bus_dmamap_unload(sdev->target->sbp->dmat, 2671 ocb->dmamap); 2672 } 2673 if (!use_doorbell) { 2674 if (sbp_status->src == SRC_NO_NEXT) { 2675 if (next != NULL) 2676 sbp_orb_pointer(sdev, next); 2677 else if (order > 0) { 2678 /* 2679 * Unordered execution 2680 * We need to send pointer for 2681 * next ORB 2682 */ 2683 sdev->flags |= ORB_LINK_DEAD; 2684 } 2685 } 2686 } else { 2687 /* 2688 * XXX this is not correct for unordered 2689 * execution. 2690 */ 2691 if (sdev->last_ocb != NULL) { 2692 sbp_free_ocb(sdev, sdev->last_ocb); 2693 } 2694 sdev->last_ocb = ocb; 2695 if (next != NULL && 2696 sbp_status->src == SRC_NO_NEXT) 2697 sbp_doorbell(sdev); 2698 } 2699 break; 2700 } else 2701 order++; 2702 } 2703 SBP_DEBUG(0) 2704 if (ocb && order > 0) { 2705 device_printf(sdev->target->sbp->fd.dev, 2706 "%s:%s unordered execution order:%d\n", 2707 __func__, sdev->bustgtlun, order); 2708 } 2709 END_DEBUG 2710 return (ocb); 2711 } 2712 2713 static struct sbp_ocb * 2714 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2715 { 2716 struct sbp_ocb *prev, *prev2; 2717 2718 SBP_LOCK_ASSERT(sdev->target->sbp); 2719 SBP_DEBUG(1) 2720 device_printf(sdev->target->sbp->fd.dev, 2721 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2722 END_DEBUG 2723 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2724 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2725 2726 if (ocb->ccb != NULL) { 2727 callout_reset_sbt(&ocb->timer, 2728 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2729 ocb, 0); 2730 } 2731 2732 if (use_doorbell && prev == NULL) 2733 prev2 = sdev->last_ocb; 2734 2735 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2736 SBP_DEBUG(1) 2737 printf("linking chain 0x%jx -> 0x%jx\n", 2738 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2739 END_DEBUG 2740 /* 2741 * Suppress compiler optimization so that orb[1] must be written first. 2742 * XXX We may need an explicit memory barrier for other architectures 2743 * other than i386/amd64. 2744 */ 2745 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2746 *(volatile uint32_t *)&prev2->orb[0] = 0; 2747 } 2748 2749 return prev; 2750 } 2751 2752 static struct sbp_ocb * 2753 sbp_get_ocb(struct sbp_dev *sdev) 2754 { 2755 struct sbp_ocb *ocb; 2756 2757 SBP_LOCK_ASSERT(sdev->target->sbp); 2758 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2759 if (ocb == NULL) { 2760 sdev->flags |= ORB_SHORTAGE; 2761 printf("ocb shortage!!!\n"); 2762 return NULL; 2763 } 2764 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2765 ocb->ccb = NULL; 2766 return (ocb); 2767 } 2768 2769 static void 2770 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2771 { 2772 ocb->flags = 0; 2773 ocb->ccb = NULL; 2774 2775 SBP_LOCK_ASSERT(sdev->target->sbp); 2776 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2777 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2778 int count; 2779 2780 sdev->flags &= ~ORB_SHORTAGE; 2781 count = sdev->freeze; 2782 sdev->freeze = 0; 2783 xpt_release_devq(sdev->path, count, TRUE); 2784 } 2785 } 2786 2787 static void 2788 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2789 { 2790 struct sbp_dev *sdev; 2791 2792 sdev = ocb->sdev; 2793 SBP_LOCK_ASSERT(sdev->target->sbp); 2794 SBP_DEBUG(0) 2795 device_printf(sdev->target->sbp->fd.dev, 2796 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2797 END_DEBUG 2798 SBP_DEBUG(1) 2799 if (ocb->ccb != NULL) 2800 sbp_print_scsi_cmd(ocb); 2801 END_DEBUG 2802 if (ntohl(ocb->orb[4]) & 0xffff) { 2803 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2804 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2805 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2806 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2807 } 2808 if (ocb->ccb != NULL) { 2809 callout_stop(&ocb->timer); 2810 ocb->ccb->ccb_h.status = status; 2811 xpt_done(ocb->ccb); 2812 } 2813 sbp_free_ocb(sdev, ocb); 2814 } 2815 2816 static void 2817 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2818 { 2819 struct sbp_ocb *ocb, *next; 2820 STAILQ_HEAD(, sbp_ocb) temp; 2821 2822 STAILQ_INIT(&temp); 2823 SBP_LOCK_ASSERT(sdev->target->sbp); 2824 STAILQ_CONCAT(&temp, &sdev->ocbs); 2825 STAILQ_INIT(&sdev->ocbs); 2826 2827 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2828 sbp_abort_ocb(ocb, status); 2829 } 2830 if (sdev->last_ocb != NULL) { 2831 sbp_free_ocb(sdev, sdev->last_ocb); 2832 sdev->last_ocb = NULL; 2833 } 2834 } 2835 2836 static devclass_t sbp_devclass; 2837 2838 static device_method_t sbp_methods[] = { 2839 /* device interface */ 2840 DEVMETHOD(device_identify, sbp_identify), 2841 DEVMETHOD(device_probe, sbp_probe), 2842 DEVMETHOD(device_attach, sbp_attach), 2843 DEVMETHOD(device_detach, sbp_detach), 2844 DEVMETHOD(device_shutdown, sbp_shutdown), 2845 2846 { 0, 0 } 2847 }; 2848 2849 static driver_t sbp_driver = { 2850 "sbp", 2851 sbp_methods, 2852 sizeof(struct sbp_softc), 2853 }; 2854 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2855 MODULE_VERSION(sbp, 1); 2856 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2857 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2858