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 SBP_LOCK_ASSERT(sbp); 429 crom_init_context(&cc, target->fwdev->csrrom); 430 /* XXX shoud parse appropriate unit directories only */ 431 maxlun = -1; 432 while (cc.depth >= 0) { 433 reg = crom_search_key(&cc, CROM_LUN); 434 if (reg == NULL) 435 break; 436 lun = reg->val & 0xffff; 437 SBP_DEBUG(0) 438 printf("target %d lun %d found\n", target->target_id, lun); 439 END_DEBUG 440 if (maxlun < lun) 441 maxlun = lun; 442 crom_next(&cc); 443 } 444 if (maxlun < 0) 445 device_printf(target->sbp->fd.dev, "%d no LUN found\n", 446 target->target_id); 447 448 maxlun++; 449 if (maxlun >= SBP_NUM_LUNS) 450 maxlun = SBP_NUM_LUNS; 451 452 /* Invalidiate stale devices */ 453 for (lun = 0; lun < target->num_lun; lun++) { 454 sdev = target->luns[lun]; 455 if (sdev == NULL) 456 continue; 457 sdev->flags &= ~VALID_LUN; 458 if (lun >= maxlun) { 459 /* lost device */ 460 sbp_cam_detach_sdev(sdev); 461 sbp_free_sdev(sdev); 462 target->luns[lun] = NULL; 463 } 464 } 465 466 /* Reallocate */ 467 if (maxlun != target->num_lun) { 468 newluns = (struct sbp_dev **) realloc(target->luns, 469 sizeof(struct sbp_dev *) * maxlun, 470 M_SBP, M_NOWAIT | M_ZERO); 471 472 if (newluns == NULL) { 473 printf("%s: realloc failed\n", __func__); 474 newluns = target->luns; 475 maxlun = target->num_lun; 476 } 477 478 /* 479 * We must zero the extended region for the case 480 * realloc() doesn't allocate new buffer. 481 */ 482 if (maxlun > target->num_lun) 483 bzero(&newluns[target->num_lun], 484 sizeof(struct sbp_dev *) * 485 (maxlun - target->num_lun)); 486 487 target->luns = newluns; 488 target->num_lun = maxlun; 489 } 490 491 crom_init_context(&cc, target->fwdev->csrrom); 492 while (cc.depth >= 0) { 493 int new = 0; 494 495 reg = crom_search_key(&cc, CROM_LUN); 496 if (reg == NULL) 497 break; 498 lun = reg->val & 0xffff; 499 if (lun >= SBP_NUM_LUNS) { 500 printf("too large lun %d\n", lun); 501 goto next; 502 } 503 504 sdev = target->luns[lun]; 505 if (sdev == NULL) { 506 sdev = malloc(sizeof(struct sbp_dev), 507 M_SBP, M_NOWAIT | M_ZERO); 508 if (sdev == NULL) { 509 printf("%s: malloc failed\n", __func__); 510 goto next; 511 } 512 target->luns[lun] = sdev; 513 sdev->lun_id = lun; 514 sdev->target = target; 515 STAILQ_INIT(&sdev->ocbs); 516 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); 517 sdev->status = SBP_DEV_RESET; 518 new = 1; 519 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 520 device_get_nameunit(sdev->target->sbp->fd.dev), 521 sdev->target->target_id, 522 sdev->lun_id); 523 } 524 sdev->flags |= VALID_LUN; 525 sdev->type = (reg->val & 0xff0000) >> 16; 526 527 if (new == 0) 528 goto next; 529 530 fwdma_malloc(sbp->fd.fc, 531 /* alignment */ sizeof(uint32_t), 532 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 533 BUS_DMA_COHERENT); 534 if (sdev->dma.v_addr == NULL) { 535 printf("%s: dma space allocation failed\n", 536 __func__); 537 free(sdev, M_SBP); 538 target->luns[lun] = NULL; 539 goto next; 540 } 541 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 542 sdev->ocb = (struct sbp_ocb *) 543 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 544 bzero((char *)sdev->ocb, 545 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 546 547 STAILQ_INIT(&sdev->free_ocbs); 548 for (i = 0; i < SBP_QUEUE_LEN; i++) { 549 struct sbp_ocb *ocb; 550 ocb = &sdev->ocb[i]; 551 ocb->bus_addr = sdev->dma.bus_addr 552 + SBP_LOGIN_SIZE 553 + sizeof(struct sbp_ocb) * i 554 + offsetof(struct sbp_ocb, orb[0]); 555 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 556 printf("sbp_attach: cannot create dmamap\n"); 557 /* XXX */ 558 goto next; 559 } 560 callout_init_mtx(&ocb->timer, &sbp->mtx, 0); 561 sbp_free_ocb(sdev, ocb); 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(void *arg) 691 { 692 struct sbp_target *target = (struct sbp_target *)arg; 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 = target->sbp; 705 SBP_LOCK_ASSERT(sbp); 706 sbp_alloc_lun(target); 707 708 /* XXX untimeout mgm_ocb and dequeue */ 709 for (i=0; i < target->num_lun; i++) { 710 sdev = target->luns[i]; 711 if (sdev == NULL) 712 continue; 713 if (alive && (sdev->status != SBP_DEV_DEAD)) { 714 if (sdev->path != NULL) { 715 xpt_freeze_devq(sdev->path, 1); 716 sdev->freeze++; 717 } 718 sbp_probe_lun(sdev); 719 sbp_show_sdev_info(sdev); 720 721 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 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->sim->flags & SIMQ_FREEZED) == 0) { 777 xpt_freeze_simq(sbp->sim, /*count*/1); 778 sbp->sim->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 #if 0 804 /* 805 * XXX don't let CAM the bus rest. 806 * CAM tries to do something with freezed (DEV_RETRY) devices. 807 */ 808 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 809 #endif 810 811 /* Garbage Collection */ 812 for (i = 0; i < SBP_NUM_TARGETS; i++) { 813 target = &sbp->targets[i]; 814 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 815 if (target->fwdev == NULL || target->fwdev == fwdev) 816 break; 817 if (fwdev == NULL) { 818 /* device has removed in lower driver */ 819 sbp_cam_detach_target(target); 820 sbp_free_target(target); 821 } 822 } 823 /* traverse device list */ 824 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 825 SBP_DEBUG(0) 826 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 827 __func__, fwdev->eui.hi, fwdev->eui.lo, 828 (fwdev->status != FWDEVATTACHED) ? "not" : "", 829 fwdev->status); 830 END_DEBUG 831 alive = SBP_FWDEV_ALIVE(fwdev); 832 for (i = 0; i < SBP_NUM_TARGETS; i++) { 833 target = &sbp->targets[i]; 834 if (target->fwdev == fwdev) { 835 /* known target */ 836 break; 837 } 838 } 839 if (i == SBP_NUM_TARGETS) { 840 if (alive) { 841 /* new target */ 842 target = sbp_alloc_target(sbp, fwdev); 843 if (target == NULL) 844 continue; 845 } else { 846 continue; 847 } 848 } 849 sbp_probe_target((void *)target); 850 if (target->num_lun == 0) 851 sbp_free_target(target); 852 } 853 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 854 sbp->sim->flags &= ~SIMQ_FREEZED; 855 SBP_UNLOCK(sbp); 856 } 857 858 #if NEED_RESPONSE 859 static void 860 sbp_loginres_callback(struct fw_xfer *xfer) 861 { 862 struct sbp_dev *sdev; 863 sdev = (struct sbp_dev *)xfer->sc; 864 SBP_DEBUG(1) 865 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 866 END_DEBUG 867 /* recycle */ 868 SBP_LOCK(sdev->target->sbp); 869 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 870 SBP_UNLOCK(sdev->target->sbp); 871 return; 872 } 873 #endif 874 875 static __inline void 876 sbp_xfer_free(struct fw_xfer *xfer) 877 { 878 struct sbp_dev *sdev; 879 880 sdev = (struct sbp_dev *)xfer->sc; 881 fw_xfer_unload(xfer); 882 SBP_LOCK_ASSERT(sdev->target->sbp); 883 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 884 } 885 886 static void 887 sbp_reset_start_callback(struct fw_xfer *xfer) 888 { 889 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 890 struct sbp_target *target = sdev->target; 891 int i; 892 893 if (xfer->resp != 0) { 894 device_printf(sdev->target->sbp->fd.dev, 895 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 896 } 897 898 SBP_LOCK(target->sbp); 899 for (i = 0; i < target->num_lun; i++) { 900 tsdev = target->luns[i]; 901 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 902 sbp_login(tsdev); 903 } 904 SBP_UNLOCK(target->sbp); 905 } 906 907 static void 908 sbp_reset_start(struct sbp_dev *sdev) 909 { 910 struct fw_xfer *xfer; 911 struct fw_pkt *fp; 912 913 SBP_DEBUG(0) 914 device_printf(sdev->target->sbp->fd.dev, 915 "%s:%s\n", __func__,sdev->bustgtlun); 916 END_DEBUG 917 918 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 919 xfer->hand = sbp_reset_start_callback; 920 fp = &xfer->send.hdr; 921 fp->mode.wreqq.dest_hi = 0xffff; 922 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 923 fp->mode.wreqq.data = htonl(0xf); 924 fw_asyreq(xfer->fc, -1, xfer); 925 } 926 927 static void 928 sbp_mgm_callback(struct fw_xfer *xfer) 929 { 930 struct sbp_dev *sdev; 931 int resp; 932 933 sdev = (struct sbp_dev *)xfer->sc; 934 935 SBP_DEBUG(1) 936 device_printf(sdev->target->sbp->fd.dev, 937 "%s:%s\n", __func__, sdev->bustgtlun); 938 END_DEBUG 939 resp = xfer->resp; 940 SBP_LOCK(sdev->target->sbp); 941 sbp_xfer_free(xfer); 942 SBP_UNLOCK(sdev->target->sbp); 943 } 944 945 static struct sbp_dev * 946 sbp_next_dev(struct sbp_target *target, int lun) 947 { 948 struct sbp_dev **sdevp; 949 int i; 950 951 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 952 i++, sdevp++) 953 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 954 return (*sdevp); 955 return (NULL); 956 } 957 958 #define SCAN_PRI 1 959 static void 960 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 961 { 962 struct sbp_target *target; 963 struct sbp_dev *sdev; 964 965 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 966 target = sdev->target; 967 SBP_LOCK_ASSERT(target->sbp); 968 SBP_DEBUG(0) 969 device_printf(sdev->target->sbp->fd.dev, 970 "%s:%s\n", __func__, sdev->bustgtlun); 971 END_DEBUG 972 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 973 sdev->status = SBP_DEV_ATTACHED; 974 } else { 975 device_printf(sdev->target->sbp->fd.dev, 976 "%s:%s failed\n", __func__, sdev->bustgtlun); 977 } 978 sdev = sbp_next_dev(target, sdev->lun_id + 1); 979 if (sdev == NULL) { 980 free(ccb, M_SBP); 981 return; 982 } 983 /* reuse ccb */ 984 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 985 ccb->ccb_h.ccb_sdev_ptr = sdev; 986 xpt_action(ccb); 987 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 988 sdev->freeze = 1; 989 } 990 991 static void 992 sbp_cam_scan_target(void *arg) 993 { 994 struct sbp_target *target = (struct sbp_target *)arg; 995 struct sbp_dev *sdev; 996 union ccb *ccb; 997 998 SBP_LOCK_ASSERT(target->sbp); 999 sdev = sbp_next_dev(target, 0); 1000 if (sdev == NULL) { 1001 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1002 target->target_id); 1003 return; 1004 } 1005 SBP_DEBUG(0) 1006 device_printf(sdev->target->sbp->fd.dev, 1007 "%s:%s\n", __func__, sdev->bustgtlun); 1008 END_DEBUG 1009 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1010 if (ccb == NULL) { 1011 printf("sbp_cam_scan_target: malloc failed\n"); 1012 return; 1013 } 1014 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1015 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1016 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1017 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1018 ccb->crcn.flags = CAM_FLAG_NONE; 1019 ccb->ccb_h.ccb_sdev_ptr = sdev; 1020 1021 /* The scan is in progress now. */ 1022 xpt_action(ccb); 1023 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1024 sdev->freeze = 1; 1025 } 1026 1027 static __inline void 1028 sbp_scan_dev(struct sbp_dev *sdev) 1029 { 1030 sdev->status = SBP_DEV_PROBE; 1031 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1032 sbp_cam_scan_target, (void *)sdev->target, 0); 1033 } 1034 1035 static void 1036 sbp_do_attach(struct fw_xfer *xfer) 1037 { 1038 struct sbp_dev *sdev; 1039 struct sbp_target *target; 1040 struct sbp_softc *sbp; 1041 1042 sdev = (struct sbp_dev *)xfer->sc; 1043 target = sdev->target; 1044 sbp = target->sbp; 1045 SBP_LOCK(sbp); 1046 SBP_DEBUG(0) 1047 device_printf(sdev->target->sbp->fd.dev, 1048 "%s:%s\n", __func__, sdev->bustgtlun); 1049 END_DEBUG 1050 sbp_xfer_free(xfer); 1051 1052 if (sdev->path == NULL) 1053 xpt_create_path(&sdev->path, NULL, 1054 cam_sim_path(target->sbp->sim), 1055 target->target_id, sdev->lun_id); 1056 1057 /* 1058 * Let CAM scan the bus if we are in the boot process. 1059 * XXX xpt_scan_bus cannot detect LUN larger than 0 1060 * if LUN 0 doesn't exist. 1061 */ 1062 if (sbp_cold > 0) { 1063 sdev->status = SBP_DEV_ATTACHED; 1064 SBP_UNLOCK(sbp); 1065 return; 1066 } 1067 1068 sbp_scan_dev(sdev); 1069 SBP_UNLOCK(sbp); 1070 } 1071 1072 static void 1073 sbp_agent_reset_callback(struct fw_xfer *xfer) 1074 { 1075 struct sbp_dev *sdev; 1076 1077 sdev = (struct sbp_dev *)xfer->sc; 1078 SBP_DEBUG(1) 1079 device_printf(sdev->target->sbp->fd.dev, 1080 "%s:%s\n", __func__, sdev->bustgtlun); 1081 END_DEBUG 1082 if (xfer->resp != 0) { 1083 device_printf(sdev->target->sbp->fd.dev, 1084 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1085 } 1086 1087 SBP_LOCK(sdev->target->sbp); 1088 sbp_xfer_free(xfer); 1089 if (sdev->path) { 1090 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1091 sdev->freeze = 0; 1092 } 1093 SBP_UNLOCK(sdev->target->sbp); 1094 } 1095 1096 static void 1097 sbp_agent_reset(struct sbp_dev *sdev) 1098 { 1099 struct fw_xfer *xfer; 1100 struct fw_pkt *fp; 1101 1102 SBP_LOCK_ASSERT(sdev->target->sbp); 1103 SBP_DEBUG(0) 1104 device_printf(sdev->target->sbp->fd.dev, 1105 "%s:%s\n", __func__, sdev->bustgtlun); 1106 END_DEBUG 1107 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1108 if (xfer == NULL) 1109 return; 1110 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1111 xfer->hand = sbp_agent_reset_callback; 1112 else 1113 xfer->hand = sbp_do_attach; 1114 fp = &xfer->send.hdr; 1115 fp->mode.wreqq.data = htonl(0xf); 1116 fw_asyreq(xfer->fc, -1, xfer); 1117 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1118 } 1119 1120 static void 1121 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1122 { 1123 struct sbp_dev *sdev; 1124 1125 sdev = (struct sbp_dev *)xfer->sc; 1126 SBP_DEBUG(1) 1127 device_printf(sdev->target->sbp->fd.dev, 1128 "%s:%s\n", __func__, sdev->bustgtlun); 1129 END_DEBUG 1130 SBP_LOCK(sdev->target->sbp); 1131 sbp_xfer_free(xfer); 1132 sbp_agent_reset(sdev); 1133 SBP_UNLOCK(sdev->target->sbp); 1134 } 1135 1136 static void 1137 sbp_busy_timeout(struct sbp_dev *sdev) 1138 { 1139 struct fw_pkt *fp; 1140 struct fw_xfer *xfer; 1141 SBP_DEBUG(0) 1142 device_printf(sdev->target->sbp->fd.dev, 1143 "%s:%s\n", __func__, sdev->bustgtlun); 1144 END_DEBUG 1145 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1146 1147 xfer->hand = sbp_busy_timeout_callback; 1148 fp = &xfer->send.hdr; 1149 fp->mode.wreqq.dest_hi = 0xffff; 1150 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1151 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1152 fw_asyreq(xfer->fc, -1, xfer); 1153 } 1154 1155 static void 1156 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1157 { 1158 struct sbp_dev *sdev; 1159 sdev = (struct sbp_dev *)xfer->sc; 1160 1161 SBP_DEBUG(2) 1162 device_printf(sdev->target->sbp->fd.dev, 1163 "%s:%s\n", __func__, sdev->bustgtlun); 1164 END_DEBUG 1165 if (xfer->resp != 0) { 1166 /* XXX */ 1167 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1168 } 1169 SBP_LOCK(sdev->target->sbp); 1170 sbp_xfer_free(xfer); 1171 1172 sdev->flags &= ~ORB_POINTER_ACTIVE; 1173 1174 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1175 struct sbp_ocb *ocb; 1176 1177 sdev->flags &= ~ORB_POINTER_NEED; 1178 ocb = STAILQ_FIRST(&sdev->ocbs); 1179 if (ocb != NULL) 1180 sbp_orb_pointer(sdev, ocb); 1181 } 1182 SBP_UNLOCK(sdev->target->sbp); 1183 return; 1184 } 1185 1186 static void 1187 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1188 { 1189 struct fw_xfer *xfer; 1190 struct fw_pkt *fp; 1191 SBP_DEBUG(1) 1192 device_printf(sdev->target->sbp->fd.dev, 1193 "%s:%s 0x%08x\n", 1194 __func__, sdev->bustgtlun, 1195 (uint32_t)ocb->bus_addr); 1196 END_DEBUG 1197 1198 SBP_LOCK_ASSERT(sdev->target->sbp); 1199 1200 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1201 SBP_DEBUG(0) 1202 printf("%s: orb pointer active\n", __func__); 1203 END_DEBUG 1204 sdev->flags |= ORB_POINTER_NEED; 1205 return; 1206 } 1207 1208 sdev->flags |= ORB_POINTER_ACTIVE; 1209 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1210 if (xfer == NULL) 1211 return; 1212 xfer->hand = sbp_orb_pointer_callback; 1213 1214 fp = &xfer->send.hdr; 1215 fp->mode.wreqb.len = 8; 1216 fp->mode.wreqb.extcode = 0; 1217 xfer->send.payload[0] = 1218 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1219 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1220 1221 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1222 sbp_xfer_free(xfer); 1223 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1224 xpt_done(ocb->ccb); 1225 } 1226 } 1227 1228 static void 1229 sbp_doorbell_callback(struct fw_xfer *xfer) 1230 { 1231 struct sbp_dev *sdev; 1232 sdev = (struct sbp_dev *)xfer->sc; 1233 1234 SBP_DEBUG(1) 1235 device_printf(sdev->target->sbp->fd.dev, 1236 "%s:%s\n", __func__, sdev->bustgtlun); 1237 END_DEBUG 1238 if (xfer->resp != 0) { 1239 /* XXX */ 1240 device_printf(sdev->target->sbp->fd.dev, 1241 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1242 } 1243 SBP_LOCK(sdev->target->sbp); 1244 sbp_xfer_free(xfer); 1245 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1246 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1247 sdev->flags &= ~ORB_DOORBELL_NEED; 1248 sbp_doorbell(sdev); 1249 } 1250 SBP_UNLOCK(sdev->target->sbp); 1251 } 1252 1253 static void 1254 sbp_doorbell(struct sbp_dev *sdev) 1255 { 1256 struct fw_xfer *xfer; 1257 struct fw_pkt *fp; 1258 SBP_DEBUG(1) 1259 device_printf(sdev->target->sbp->fd.dev, 1260 "%s:%s\n", __func__, sdev->bustgtlun); 1261 END_DEBUG 1262 1263 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1264 sdev->flags |= ORB_DOORBELL_NEED; 1265 return; 1266 } 1267 sdev->flags |= ORB_DOORBELL_ACTIVE; 1268 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1269 if (xfer == NULL) 1270 return; 1271 xfer->hand = sbp_doorbell_callback; 1272 fp = &xfer->send.hdr; 1273 fp->mode.wreqq.data = htonl(0xf); 1274 fw_asyreq(xfer->fc, -1, xfer); 1275 } 1276 1277 static struct fw_xfer * 1278 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1279 { 1280 struct fw_xfer *xfer; 1281 struct fw_pkt *fp; 1282 struct sbp_target *target; 1283 int new = 0; 1284 1285 SBP_LOCK_ASSERT(sdev->target->sbp); 1286 1287 target = sdev->target; 1288 xfer = STAILQ_FIRST(&target->xferlist); 1289 if (xfer == NULL) { 1290 if (target->n_xfer > 5 /* XXX */) { 1291 printf("sbp: no more xfer for this target\n"); 1292 return (NULL); 1293 } 1294 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1295 if (xfer == NULL) { 1296 printf("sbp: fw_xfer_alloc_buf failed\n"); 1297 return NULL; 1298 } 1299 target->n_xfer++; 1300 if (debug) 1301 printf("sbp: alloc %d xfer\n", target->n_xfer); 1302 new = 1; 1303 } else { 1304 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1305 } 1306 1307 if (new) { 1308 xfer->recv.pay_len = 0; 1309 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1310 xfer->fc = sdev->target->sbp->fd.fc; 1311 } 1312 1313 if (tcode == FWTCODE_WREQB) 1314 xfer->send.pay_len = 8; 1315 else 1316 xfer->send.pay_len = 0; 1317 1318 xfer->sc = (caddr_t)sdev; 1319 fp = &xfer->send.hdr; 1320 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1321 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1322 fp->mode.wreqq.tlrt = 0; 1323 fp->mode.wreqq.tcode = tcode; 1324 fp->mode.wreqq.pri = 0; 1325 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1326 1327 return xfer; 1328 } 1329 1330 static void 1331 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1332 { 1333 struct fw_xfer *xfer; 1334 struct fw_pkt *fp; 1335 struct sbp_ocb *ocb; 1336 struct sbp_target *target; 1337 int nid; 1338 1339 target = sdev->target; 1340 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1341 1342 SBP_LOCK_ASSERT(target->sbp); 1343 if (func == ORB_FUN_RUNQUEUE) { 1344 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1345 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1346 return; 1347 } 1348 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1349 goto start; 1350 } 1351 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1352 /* XXX */ 1353 return; 1354 } 1355 ocb->flags = OCB_ACT_MGM; 1356 ocb->sdev = sdev; 1357 1358 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1359 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1360 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1361 1362 SBP_DEBUG(0) 1363 device_printf(sdev->target->sbp->fd.dev, 1364 "%s:%s %s\n", 1365 __func__,sdev->bustgtlun, 1366 orb_fun_name[(func >> 16) & 0xf]); 1367 END_DEBUG 1368 switch (func) { 1369 case ORB_FUN_LGI: 1370 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1371 ocb->orb[2] = htonl(nid << 16); 1372 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1373 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1374 if (ex_login) 1375 ocb->orb[4] |= htonl(ORB_EXV); 1376 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1377 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1378 break; 1379 case ORB_FUN_ATA: 1380 ocb->orb[0] = htonl((0 << 16) | 0); 1381 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1382 /* fall through */ 1383 case ORB_FUN_RCN: 1384 case ORB_FUN_LGO: 1385 case ORB_FUN_LUR: 1386 case ORB_FUN_RST: 1387 case ORB_FUN_ATS: 1388 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1389 break; 1390 } 1391 1392 if (target->mgm_ocb_cur != NULL) { 1393 /* there is a standing ORB */ 1394 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1395 return; 1396 } 1397 start: 1398 target->mgm_ocb_cur = ocb; 1399 1400 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1401 sbp_mgm_timeout, (caddr_t)ocb); 1402 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1403 if (xfer == NULL) { 1404 return; 1405 } 1406 xfer->hand = sbp_mgm_callback; 1407 1408 fp = &xfer->send.hdr; 1409 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1410 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1411 fp->mode.wreqb.len = 8; 1412 fp->mode.wreqb.extcode = 0; 1413 xfer->send.payload[0] = htonl(nid << 16); 1414 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1415 1416 fw_asyreq(xfer->fc, -1, xfer); 1417 } 1418 1419 static void 1420 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1421 { 1422 struct ccb_scsiio *csio; 1423 1424 csio = &ocb->ccb->csio; 1425 printf("%s:%d:%jx XPT_SCSI_IO: " 1426 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1427 ", flags: 0x%02x, " 1428 "%db cmd/%db data/%db sense\n", 1429 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1430 ocb->ccb->ccb_h.target_id, 1431 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1432 csio->cdb_io.cdb_bytes[0], 1433 csio->cdb_io.cdb_bytes[1], 1434 csio->cdb_io.cdb_bytes[2], 1435 csio->cdb_io.cdb_bytes[3], 1436 csio->cdb_io.cdb_bytes[4], 1437 csio->cdb_io.cdb_bytes[5], 1438 csio->cdb_io.cdb_bytes[6], 1439 csio->cdb_io.cdb_bytes[7], 1440 csio->cdb_io.cdb_bytes[8], 1441 csio->cdb_io.cdb_bytes[9], 1442 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1443 csio->cdb_len, csio->dxfer_len, 1444 csio->sense_len); 1445 } 1446 1447 static void 1448 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1449 { 1450 struct sbp_cmd_status *sbp_cmd_status; 1451 struct scsi_sense_data_fixed *sense; 1452 1453 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1454 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1455 1456 SBP_DEBUG(0) 1457 sbp_print_scsi_cmd(ocb); 1458 /* XXX need decode status */ 1459 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1460 ocb->sdev->bustgtlun, 1461 sbp_cmd_status->status, 1462 sbp_cmd_status->sfmt, 1463 sbp_cmd_status->valid, 1464 sbp_cmd_status->s_key, 1465 sbp_cmd_status->s_code, 1466 sbp_cmd_status->s_qlfr, 1467 sbp_status->len); 1468 END_DEBUG 1469 1470 switch (sbp_cmd_status->status) { 1471 case SCSI_STATUS_CHECK_COND: 1472 case SCSI_STATUS_BUSY: 1473 case SCSI_STATUS_CMD_TERMINATED: 1474 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1475 sense->error_code = SSD_CURRENT_ERROR; 1476 } else { 1477 sense->error_code = SSD_DEFERRED_ERROR; 1478 } 1479 if (sbp_cmd_status->valid) 1480 sense->error_code |= SSD_ERRCODE_VALID; 1481 sense->flags = sbp_cmd_status->s_key; 1482 if (sbp_cmd_status->mark) 1483 sense->flags |= SSD_FILEMARK; 1484 if (sbp_cmd_status->eom) 1485 sense->flags |= SSD_EOM; 1486 if (sbp_cmd_status->ill_len) 1487 sense->flags |= SSD_ILI; 1488 1489 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1490 1491 if (sbp_status->len <= 1) 1492 /* XXX not scsi status. shouldn't be happened */ 1493 sense->extra_len = 0; 1494 else if (sbp_status->len <= 4) 1495 /* add_sense_code(_qual), info, cmd_spec_info */ 1496 sense->extra_len = 6; 1497 else 1498 /* fru, sense_key_spec */ 1499 sense->extra_len = 10; 1500 1501 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1502 1503 sense->add_sense_code = sbp_cmd_status->s_code; 1504 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1505 sense->fru = sbp_cmd_status->fru; 1506 1507 bcopy(&sbp_cmd_status->s_keydep[0], 1508 &sense->sense_key_spec[0], 3); 1509 1510 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1511 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1512 | CAM_AUTOSNS_VALID; 1513 /* 1514 { 1515 uint8_t j, *tmp; 1516 tmp = sense; 1517 for (j = 0; j < 32; j += 8) { 1518 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1519 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1520 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1521 } 1522 1523 } 1524 */ 1525 break; 1526 default: 1527 device_printf(ocb->sdev->target->sbp->fd.dev, 1528 "%s:%s unknown scsi status 0x%x\n", 1529 __func__, ocb->sdev->bustgtlun, 1530 sbp_cmd_status->status); 1531 } 1532 } 1533 1534 static void 1535 sbp_fix_inq_data(struct sbp_ocb *ocb) 1536 { 1537 union ccb *ccb; 1538 struct sbp_dev *sdev; 1539 struct scsi_inquiry_data *inq; 1540 1541 ccb = ocb->ccb; 1542 sdev = ocb->sdev; 1543 1544 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1545 return; 1546 SBP_DEBUG(1) 1547 device_printf(sdev->target->sbp->fd.dev, 1548 "%s:%s\n", __func__, sdev->bustgtlun); 1549 END_DEBUG 1550 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1551 switch (SID_TYPE(inq)) { 1552 case T_DIRECT: 1553 #if 0 1554 /* 1555 * XXX Convert Direct Access device to RBC. 1556 * I've never seen FireWire DA devices which support READ_6. 1557 */ 1558 if (SID_TYPE(inq) == T_DIRECT) 1559 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1560 #endif 1561 /* fall through */ 1562 case T_RBC: 1563 /* 1564 * Override vendor/product/revision information. 1565 * Some devices sometimes return strange strings. 1566 */ 1567 #if 1 1568 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1569 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1570 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1571 #endif 1572 break; 1573 } 1574 /* 1575 * Force to enable/disable tagged queuing. 1576 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1577 */ 1578 if (sbp_tags > 0) 1579 inq->flags |= SID_CmdQue; 1580 else if (sbp_tags < 0) 1581 inq->flags &= ~SID_CmdQue; 1582 1583 } 1584 1585 static void 1586 sbp_recv1(struct fw_xfer *xfer) 1587 { 1588 struct fw_pkt *rfp; 1589 #if NEED_RESPONSE 1590 struct fw_pkt *sfp; 1591 #endif 1592 struct sbp_softc *sbp; 1593 struct sbp_dev *sdev; 1594 struct sbp_ocb *ocb; 1595 struct sbp_login_res *login_res = NULL; 1596 struct sbp_status *sbp_status; 1597 struct sbp_target *target; 1598 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1599 uint32_t addr; 1600 /* 1601 uint32_t *ld; 1602 ld = xfer->recv.buf; 1603 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1604 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1605 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1606 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1607 */ 1608 sbp = (struct sbp_softc *)xfer->sc; 1609 SBP_LOCK_ASSERT(sbp); 1610 if (xfer->resp != 0) { 1611 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1612 goto done0; 1613 } 1614 if (xfer->recv.payload == NULL) { 1615 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1616 goto done0; 1617 } 1618 rfp = &xfer->recv.hdr; 1619 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1620 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1621 goto done0; 1622 } 1623 sbp_status = (struct sbp_status *)xfer->recv.payload; 1624 addr = rfp->mode.wreqb.dest_lo; 1625 SBP_DEBUG(2) 1626 printf("received address 0x%x\n", addr); 1627 END_DEBUG 1628 t = SBP_ADDR2TRG(addr); 1629 if (t >= SBP_NUM_TARGETS) { 1630 device_printf(sbp->fd.dev, 1631 "sbp_recv1: invalid target %d\n", t); 1632 goto done0; 1633 } 1634 target = &sbp->targets[t]; 1635 l = SBP_ADDR2LUN(addr); 1636 if (l >= target->num_lun || target->luns[l] == NULL) { 1637 device_printf(sbp->fd.dev, 1638 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1639 goto done0; 1640 } 1641 sdev = target->luns[l]; 1642 1643 ocb = NULL; 1644 switch (sbp_status->src) { 1645 case 0: 1646 case 1: 1647 /* check mgm_ocb_cur first */ 1648 ocb = target->mgm_ocb_cur; 1649 if (ocb != NULL) { 1650 if (OCB_MATCH(ocb, sbp_status)) { 1651 callout_stop(&target->mgm_ocb_timeout); 1652 target->mgm_ocb_cur = NULL; 1653 break; 1654 } 1655 } 1656 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1657 if (ocb == NULL) { 1658 device_printf(sdev->target->sbp->fd.dev, 1659 "%s:%s No ocb(%x) on the queue\n", 1660 __func__,sdev->bustgtlun, 1661 ntohl(sbp_status->orb_lo)); 1662 } 1663 break; 1664 case 2: 1665 /* unsolicit */ 1666 device_printf(sdev->target->sbp->fd.dev, 1667 "%s:%s unsolicit status received\n", 1668 __func__, sdev->bustgtlun); 1669 break; 1670 default: 1671 device_printf(sdev->target->sbp->fd.dev, 1672 "%s:%s unknown sbp_status->src\n", 1673 __func__, sdev->bustgtlun); 1674 } 1675 1676 status_valid0 = (sbp_status->src < 2 1677 && sbp_status->resp == ORB_RES_CMPL 1678 && sbp_status->dead == 0); 1679 status_valid = (status_valid0 && sbp_status->status == 0); 1680 1681 if (!status_valid0 || debug > 2) { 1682 int status; 1683 SBP_DEBUG(0) 1684 device_printf(sdev->target->sbp->fd.dev, 1685 "%s:%s ORB status src:%x resp:%x dead:%x" 1686 " len:%x stat:%x orb:%x%08x\n", 1687 __func__, sdev->bustgtlun, 1688 sbp_status->src, sbp_status->resp, sbp_status->dead, 1689 sbp_status->len, sbp_status->status, 1690 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1691 END_DEBUG 1692 device_printf(sdev->target->sbp->fd.dev, 1693 "%s\n", sdev->bustgtlun); 1694 status = sbp_status->status; 1695 switch (sbp_status->resp) { 1696 case 0: 1697 if (status > MAX_ORB_STATUS0) 1698 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1699 else 1700 printf("%s\n", orb_status0[status]); 1701 break; 1702 case 1: 1703 printf("Obj: %s, Error: %s\n", 1704 orb_status1_object[(status >> 6) & 3], 1705 orb_status1_serial_bus_error[status & 0xf]); 1706 break; 1707 case 2: 1708 printf("Illegal request\n"); 1709 break; 1710 case 3: 1711 printf("Vendor dependent\n"); 1712 break; 1713 default: 1714 printf("unknown respose code %d\n", sbp_status->resp); 1715 } 1716 } 1717 1718 /* we have to reset the fetch agent if it's dead */ 1719 if (sbp_status->dead) { 1720 if (sdev->path) { 1721 xpt_freeze_devq(sdev->path, 1); 1722 sdev->freeze++; 1723 } 1724 reset_agent = 1; 1725 } 1726 1727 if (ocb == NULL) 1728 goto done; 1729 1730 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1731 case ORB_FMT_NOP: 1732 break; 1733 case ORB_FMT_VED: 1734 break; 1735 case ORB_FMT_STD: 1736 switch (ocb->flags) { 1737 case OCB_ACT_MGM: 1738 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1739 reset_agent = 0; 1740 switch (orb_fun) { 1741 case ORB_FUN_LGI: 1742 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1743 login_res = sdev->login; 1744 login_res->len = ntohs(login_res->len); 1745 login_res->id = ntohs(login_res->id); 1746 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1747 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1748 if (status_valid) { 1749 SBP_DEBUG(0) 1750 device_printf(sdev->target->sbp->fd.dev, 1751 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1752 __func__, sdev->bustgtlun, 1753 login_res->len, login_res->id, 1754 login_res->cmd_hi, login_res->cmd_lo, 1755 ntohs(login_res->recon_hold)); 1756 END_DEBUG 1757 sbp_busy_timeout(sdev); 1758 } else { 1759 /* forgot logout? */ 1760 device_printf(sdev->target->sbp->fd.dev, 1761 "%s:%s login failed\n", 1762 __func__, sdev->bustgtlun); 1763 sdev->status = SBP_DEV_RESET; 1764 } 1765 break; 1766 case ORB_FUN_RCN: 1767 login_res = sdev->login; 1768 if (status_valid) { 1769 SBP_DEBUG(0) 1770 device_printf(sdev->target->sbp->fd.dev, 1771 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1772 __func__, sdev->bustgtlun, 1773 login_res->len, login_res->id, 1774 login_res->cmd_hi, login_res->cmd_lo); 1775 END_DEBUG 1776 if (sdev->status == SBP_DEV_ATTACHED) 1777 sbp_scan_dev(sdev); 1778 else 1779 sbp_agent_reset(sdev); 1780 } else { 1781 /* reconnection hold time exceed? */ 1782 SBP_DEBUG(0) 1783 device_printf(sdev->target->sbp->fd.dev, 1784 "%s:%s reconnect failed\n", 1785 __func__, sdev->bustgtlun); 1786 END_DEBUG 1787 sbp_login(sdev); 1788 } 1789 break; 1790 case ORB_FUN_LGO: 1791 sdev->status = SBP_DEV_RESET; 1792 break; 1793 case ORB_FUN_RST: 1794 sbp_busy_timeout(sdev); 1795 break; 1796 case ORB_FUN_LUR: 1797 case ORB_FUN_ATA: 1798 case ORB_FUN_ATS: 1799 sbp_agent_reset(sdev); 1800 break; 1801 default: 1802 device_printf(sdev->target->sbp->fd.dev, 1803 "%s:%s unknown function %d\n", 1804 __func__, sdev->bustgtlun, orb_fun); 1805 break; 1806 } 1807 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1808 break; 1809 case OCB_ACT_CMD: 1810 sdev->timeout = 0; 1811 if (ocb->ccb != NULL) { 1812 union ccb *ccb; 1813 1814 ccb = ocb->ccb; 1815 if (sbp_status->len > 1) { 1816 sbp_scsi_status(sbp_status, ocb); 1817 } else { 1818 if (sbp_status->resp != ORB_RES_CMPL) { 1819 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1820 } else { 1821 ccb->ccb_h.status = CAM_REQ_CMP; 1822 } 1823 } 1824 /* fix up inq data */ 1825 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1826 sbp_fix_inq_data(ocb); 1827 xpt_done(ccb); 1828 } 1829 break; 1830 default: 1831 break; 1832 } 1833 } 1834 1835 if (!use_doorbell) 1836 sbp_free_ocb(sdev, ocb); 1837 done: 1838 if (reset_agent) 1839 sbp_agent_reset(sdev); 1840 1841 done0: 1842 xfer->recv.pay_len = SBP_RECV_LEN; 1843 /* The received packet is usually small enough to be stored within 1844 * the buffer. In that case, the controller return ack_complete and 1845 * no respose is necessary. 1846 * 1847 * XXX fwohci.c and firewire.c should inform event_code such as 1848 * ack_complete or ack_pending to upper driver. 1849 */ 1850 #if NEED_RESPONSE 1851 xfer->send.off = 0; 1852 sfp = (struct fw_pkt *)xfer->send.buf; 1853 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1854 xfer->dst = sfp->mode.wres.dst; 1855 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1856 xfer->hand = sbp_loginres_callback; 1857 1858 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1859 sfp->mode.wres.tcode = FWTCODE_WRES; 1860 sfp->mode.wres.rtcode = 0; 1861 sfp->mode.wres.pri = 0; 1862 1863 fw_asyreq(xfer->fc, -1, xfer); 1864 #else 1865 /* recycle */ 1866 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1867 #endif 1868 } 1869 1870 static void 1871 sbp_recv(struct fw_xfer *xfer) 1872 { 1873 struct sbp_softc *sbp; 1874 1875 sbp = (struct sbp_softc *)xfer->sc; 1876 SBP_LOCK(sbp); 1877 sbp_recv1(xfer); 1878 SBP_UNLOCK(sbp); 1879 } 1880 /* 1881 * sbp_attach() 1882 */ 1883 static int 1884 sbp_attach(device_t dev) 1885 { 1886 struct sbp_softc *sbp; 1887 struct cam_devq *devq; 1888 struct firewire_comm *fc; 1889 int i, error; 1890 1891 if (DFLTPHYS > SBP_MAXPHYS) 1892 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1893 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1894 SBP_MAXPHYS / 1024); 1895 1896 if (!firewire_phydma_enable) 1897 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1898 "for SBP over FireWire.\n"); 1899 SBP_DEBUG(0) 1900 printf("sbp_attach (cold=%d)\n", cold); 1901 END_DEBUG 1902 1903 if (cold) 1904 sbp_cold++; 1905 sbp = device_get_softc(dev); 1906 sbp->fd.dev = dev; 1907 sbp->fd.fc = fc = device_get_ivars(dev); 1908 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1909 1910 if (max_speed < 0) 1911 max_speed = fc->speed; 1912 1913 error = bus_dma_tag_create(/*parent*/fc->dmat, 1914 /* XXX shoud be 4 for sane backend? */ 1915 /*alignment*/1, 1916 /*boundary*/0, 1917 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1918 /*highaddr*/BUS_SPACE_MAXADDR, 1919 /*filter*/NULL, /*filterarg*/NULL, 1920 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1921 /*maxsegsz*/SBP_SEG_MAX, 1922 /*flags*/BUS_DMA_ALLOCNOW, 1923 /*lockfunc*/busdma_lock_mutex, 1924 /*lockarg*/&sbp->mtx, 1925 &sbp->dmat); 1926 if (error != 0) { 1927 printf("sbp_attach: Could not allocate DMA tag " 1928 "- error %d\n", error); 1929 return (ENOMEM); 1930 } 1931 1932 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1933 if (devq == NULL) 1934 return (ENXIO); 1935 1936 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1937 sbp->targets[i].fwdev = NULL; 1938 sbp->targets[i].luns = NULL; 1939 sbp->targets[i].sbp = sbp; 1940 } 1941 1942 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1943 device_get_unit(dev), 1944 &sbp->mtx, 1945 /*untagged*/ 1, 1946 /*tagged*/ SBP_QUEUE_LEN - 1, 1947 devq); 1948 1949 if (sbp->sim == NULL) { 1950 cam_simq_free(devq); 1951 return (ENXIO); 1952 } 1953 1954 SBP_LOCK(sbp); 1955 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1956 goto fail; 1957 1958 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1959 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1960 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1961 goto fail; 1962 } 1963 SBP_UNLOCK(sbp); 1964 1965 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1966 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1967 sbp->fwb.end = sbp->fwb.start + 0xffff; 1968 /* pre-allocate xfer */ 1969 STAILQ_INIT(&sbp->fwb.xferlist); 1970 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1971 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1972 fc, (void *)sbp, sbp_recv); 1973 1974 fw_bindadd(fc, &sbp->fwb); 1975 1976 sbp->fd.post_busreset = sbp_post_busreset; 1977 sbp->fd.post_explore = sbp_post_explore; 1978 1979 if (fc->status != -1) { 1980 sbp_post_busreset((void *)sbp); 1981 sbp_post_explore((void *)sbp); 1982 } 1983 SBP_LOCK(sbp); 1984 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 1985 SBP_UNLOCK(sbp); 1986 1987 return (0); 1988 fail: 1989 SBP_UNLOCK(sbp); 1990 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 1991 return (ENXIO); 1992 } 1993 1994 static int 1995 sbp_logout_all(struct sbp_softc *sbp) 1996 { 1997 struct sbp_target *target; 1998 struct sbp_dev *sdev; 1999 int i, j; 2000 2001 SBP_DEBUG(0) 2002 printf("sbp_logout_all\n"); 2003 END_DEBUG 2004 SBP_LOCK_ASSERT(sbp); 2005 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2006 target = &sbp->targets[i]; 2007 if (target->luns == NULL) 2008 continue; 2009 for (j = 0; j < target->num_lun; j++) { 2010 sdev = target->luns[j]; 2011 if (sdev == NULL) 2012 continue; 2013 callout_stop(&sdev->login_callout); 2014 if (sdev->status >= SBP_DEV_TOATTACH && 2015 sdev->status <= SBP_DEV_ATTACHED) 2016 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2017 } 2018 } 2019 2020 return 0; 2021 } 2022 2023 static int 2024 sbp_shutdown(device_t dev) 2025 { 2026 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2027 2028 SBP_LOCK(sbp); 2029 sbp_logout_all(sbp); 2030 SBP_UNLOCK(sbp); 2031 return (0); 2032 } 2033 2034 static void 2035 sbp_free_sdev(struct sbp_dev *sdev) 2036 { 2037 struct sbp_softc *sbp; 2038 int i; 2039 2040 if (sdev == NULL) 2041 return; 2042 sbp = sdev->target->sbp; 2043 SBP_UNLOCK(sbp); 2044 callout_drain(&sdev->login_callout); 2045 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2046 callout_drain(&sdev->ocb[i].timer); 2047 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2048 } 2049 fwdma_free(sbp->fd.fc, &sdev->dma); 2050 free(sdev, M_SBP); 2051 SBP_LOCK(sbp); 2052 } 2053 2054 static void 2055 sbp_free_target(struct sbp_target *target) 2056 { 2057 struct sbp_softc *sbp; 2058 struct fw_xfer *xfer, *next; 2059 int i; 2060 2061 if (target->luns == NULL) 2062 return; 2063 sbp = target->sbp; 2064 SBP_LOCK_ASSERT(sbp); 2065 SBP_UNLOCK(sbp); 2066 callout_drain(&target->mgm_ocb_timeout); 2067 callout_drain(&target->scan_callout); 2068 SBP_LOCK(sbp); 2069 for (i = 0; i < target->num_lun; i++) 2070 sbp_free_sdev(target->luns[i]); 2071 2072 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2073 fw_xfer_free_buf(xfer); 2074 } 2075 STAILQ_INIT(&target->xferlist); 2076 free(target->luns, M_SBP); 2077 target->num_lun = 0; 2078 target->luns = NULL; 2079 target->fwdev = NULL; 2080 } 2081 2082 static int 2083 sbp_detach(device_t dev) 2084 { 2085 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2086 struct firewire_comm *fc = sbp->fd.fc; 2087 int i; 2088 2089 SBP_DEBUG(0) 2090 printf("sbp_detach\n"); 2091 END_DEBUG 2092 2093 SBP_LOCK(sbp); 2094 for (i = 0; i < SBP_NUM_TARGETS; i++) 2095 sbp_cam_detach_target(&sbp->targets[i]); 2096 2097 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2098 xpt_free_path(sbp->path); 2099 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2100 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2101 2102 sbp_logout_all(sbp); 2103 SBP_UNLOCK(sbp); 2104 2105 /* XXX wait for logout completion */ 2106 pause("sbpdtc", hz/2); 2107 2108 SBP_LOCK(sbp); 2109 for (i = 0; i < SBP_NUM_TARGETS; i++) 2110 sbp_free_target(&sbp->targets[i]); 2111 SBP_UNLOCK(sbp); 2112 2113 fw_bindremove(fc, &sbp->fwb); 2114 fw_xferlist_remove(&sbp->fwb.xferlist); 2115 2116 bus_dma_tag_destroy(sbp->dmat); 2117 mtx_destroy(&sbp->mtx); 2118 2119 return (0); 2120 } 2121 2122 static void 2123 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2124 { 2125 if (sdev == NULL) 2126 return; 2127 if (sdev->status == SBP_DEV_DEAD) 2128 return; 2129 if (sdev->status == SBP_DEV_RESET) 2130 return; 2131 SBP_LOCK_ASSERT(sdev->target->sbp); 2132 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2133 if (sdev->path) { 2134 xpt_release_devq(sdev->path, 2135 sdev->freeze, TRUE); 2136 sdev->freeze = 0; 2137 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2138 xpt_free_path(sdev->path); 2139 sdev->path = NULL; 2140 } 2141 } 2142 2143 static void 2144 sbp_cam_detach_target(struct sbp_target *target) 2145 { 2146 int i; 2147 2148 SBP_LOCK_ASSERT(target->sbp); 2149 if (target->luns != NULL) { 2150 SBP_DEBUG(0) 2151 printf("sbp_detach_target %d\n", target->target_id); 2152 END_DEBUG 2153 callout_stop(&target->scan_callout); 2154 for (i = 0; i < target->num_lun; i++) 2155 sbp_cam_detach_sdev(target->luns[i]); 2156 } 2157 } 2158 2159 static void 2160 sbp_target_reset(struct sbp_dev *sdev, int method) 2161 { 2162 int i; 2163 struct sbp_target *target = sdev->target; 2164 struct sbp_dev *tsdev; 2165 2166 SBP_LOCK_ASSERT(target->sbp); 2167 for (i = 0; i < target->num_lun; i++) { 2168 tsdev = target->luns[i]; 2169 if (tsdev == NULL) 2170 continue; 2171 if (tsdev->status == SBP_DEV_DEAD) 2172 continue; 2173 if (tsdev->status == SBP_DEV_RESET) 2174 continue; 2175 xpt_freeze_devq(tsdev->path, 1); 2176 tsdev->freeze++; 2177 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2178 if (method == 2) 2179 tsdev->status = SBP_DEV_LOGIN; 2180 } 2181 switch (method) { 2182 case 1: 2183 printf("target reset\n"); 2184 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2185 break; 2186 case 2: 2187 printf("reset start\n"); 2188 sbp_reset_start(sdev); 2189 break; 2190 } 2191 2192 } 2193 2194 static void 2195 sbp_mgm_timeout(void *arg) 2196 { 2197 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2198 struct sbp_dev *sdev = ocb->sdev; 2199 struct sbp_target *target = sdev->target; 2200 2201 SBP_LOCK_ASSERT(target->sbp); 2202 device_printf(sdev->target->sbp->fd.dev, 2203 "%s:%s request timeout(mgm orb:0x%08x)\n", 2204 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2205 target->mgm_ocb_cur = NULL; 2206 sbp_free_ocb(sdev, ocb); 2207 #if 0 2208 /* XXX */ 2209 printf("run next request\n"); 2210 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2211 #endif 2212 device_printf(sdev->target->sbp->fd.dev, 2213 "%s:%s reset start\n", 2214 __func__, sdev->bustgtlun); 2215 sbp_reset_start(sdev); 2216 } 2217 2218 static void 2219 sbp_timeout(void *arg) 2220 { 2221 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2222 struct sbp_dev *sdev = ocb->sdev; 2223 2224 device_printf(sdev->target->sbp->fd.dev, 2225 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2226 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2227 2228 SBP_LOCK_ASSERT(sdev->target->sbp); 2229 sdev->timeout++; 2230 switch (sdev->timeout) { 2231 case 1: 2232 printf("agent reset\n"); 2233 xpt_freeze_devq(sdev->path, 1); 2234 sdev->freeze++; 2235 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2236 sbp_agent_reset(sdev); 2237 break; 2238 case 2: 2239 case 3: 2240 sbp_target_reset(sdev, sdev->timeout - 1); 2241 break; 2242 #if 0 2243 default: 2244 /* XXX give up */ 2245 sbp_cam_detach_target(target); 2246 if (target->luns != NULL) 2247 free(target->luns, M_SBP); 2248 target->num_lun = 0; 2249 target->luns = NULL; 2250 target->fwdev = NULL; 2251 #endif 2252 } 2253 } 2254 2255 static void 2256 sbp_action(struct cam_sim *sim, union ccb *ccb) 2257 { 2258 2259 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2260 struct sbp_target *target = NULL; 2261 struct sbp_dev *sdev = NULL; 2262 2263 if (sbp != NULL) 2264 SBP_LOCK_ASSERT(sbp); 2265 /* target:lun -> sdev mapping */ 2266 if (sbp != NULL 2267 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2268 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2269 target = &sbp->targets[ccb->ccb_h.target_id]; 2270 if (target->fwdev != NULL 2271 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2272 && ccb->ccb_h.target_lun < target->num_lun) { 2273 sdev = target->luns[ccb->ccb_h.target_lun]; 2274 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2275 sdev->status != SBP_DEV_PROBE) 2276 sdev = NULL; 2277 } 2278 } 2279 2280 SBP_DEBUG(1) 2281 if (sdev == NULL) 2282 printf("invalid target %d lun %jx\n", 2283 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2284 END_DEBUG 2285 2286 switch (ccb->ccb_h.func_code) { 2287 case XPT_SCSI_IO: 2288 case XPT_RESET_DEV: 2289 case XPT_GET_TRAN_SETTINGS: 2290 case XPT_SET_TRAN_SETTINGS: 2291 case XPT_CALC_GEOMETRY: 2292 if (sdev == NULL) { 2293 SBP_DEBUG(1) 2294 printf("%s:%d:%jx:func_code 0x%04x: " 2295 "Invalid target (target needed)\n", 2296 device_get_nameunit(sbp->fd.dev), 2297 ccb->ccb_h.target_id, 2298 (uintmax_t)ccb->ccb_h.target_lun, 2299 ccb->ccb_h.func_code); 2300 END_DEBUG 2301 2302 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2303 xpt_done(ccb); 2304 return; 2305 } 2306 break; 2307 case XPT_PATH_INQ: 2308 case XPT_NOOP: 2309 /* The opcodes sometimes aimed at a target (sc is valid), 2310 * sometimes aimed at the SIM (sc is invalid and target is 2311 * CAM_TARGET_WILDCARD) 2312 */ 2313 if (sbp == NULL && 2314 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2315 SBP_DEBUG(0) 2316 printf("%s:%d:%jx func_code 0x%04x: " 2317 "Invalid target (no wildcard)\n", 2318 device_get_nameunit(sbp->fd.dev), 2319 ccb->ccb_h.target_id, 2320 (uintmax_t)ccb->ccb_h.target_lun, 2321 ccb->ccb_h.func_code); 2322 END_DEBUG 2323 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2324 xpt_done(ccb); 2325 return; 2326 } 2327 break; 2328 default: 2329 /* XXX Hm, we should check the input parameters */ 2330 break; 2331 } 2332 2333 switch (ccb->ccb_h.func_code) { 2334 case XPT_SCSI_IO: 2335 { 2336 struct ccb_scsiio *csio; 2337 struct sbp_ocb *ocb; 2338 int speed; 2339 void *cdb; 2340 2341 csio = &ccb->csio; 2342 mtx_assert(sim->mtx, MA_OWNED); 2343 2344 SBP_DEBUG(2) 2345 printf("%s:%d:%jx XPT_SCSI_IO: " 2346 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2347 ", flags: 0x%02x, " 2348 "%db cmd/%db data/%db sense\n", 2349 device_get_nameunit(sbp->fd.dev), 2350 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2351 csio->cdb_io.cdb_bytes[0], 2352 csio->cdb_io.cdb_bytes[1], 2353 csio->cdb_io.cdb_bytes[2], 2354 csio->cdb_io.cdb_bytes[3], 2355 csio->cdb_io.cdb_bytes[4], 2356 csio->cdb_io.cdb_bytes[5], 2357 csio->cdb_io.cdb_bytes[6], 2358 csio->cdb_io.cdb_bytes[7], 2359 csio->cdb_io.cdb_bytes[8], 2360 csio->cdb_io.cdb_bytes[9], 2361 ccb->ccb_h.flags & CAM_DIR_MASK, 2362 csio->cdb_len, csio->dxfer_len, 2363 csio->sense_len); 2364 END_DEBUG 2365 if (sdev == NULL) { 2366 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2367 xpt_done(ccb); 2368 return; 2369 } 2370 #if 0 2371 /* if we are in probe stage, pass only probe commands */ 2372 if (sdev->status == SBP_DEV_PROBE) { 2373 char *name; 2374 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2375 printf("probe stage, periph name: %s\n", name); 2376 if (strcmp(name, "probe") != 0) { 2377 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2378 xpt_done(ccb); 2379 return; 2380 } 2381 } 2382 #endif 2383 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2384 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2385 if (sdev->freeze == 0) { 2386 xpt_freeze_devq(sdev->path, 1); 2387 sdev->freeze++; 2388 } 2389 xpt_done(ccb); 2390 return; 2391 } 2392 2393 ocb->flags = OCB_ACT_CMD; 2394 ocb->sdev = sdev; 2395 ocb->ccb = ccb; 2396 ccb->ccb_h.ccb_sdev_ptr = sdev; 2397 ocb->orb[0] = htonl(1U << 31); 2398 ocb->orb[1] = 0; 2399 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2400 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2401 speed = min(target->fwdev->speed, max_speed); 2402 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2403 | ORB_CMD_MAXP(speed + 7)); 2404 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2405 ocb->orb[4] |= htonl(ORB_CMD_IN); 2406 } 2407 2408 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2409 cdb = (void *)csio->cdb_io.cdb_ptr; 2410 else 2411 cdb = (void *)&csio->cdb_io.cdb_bytes; 2412 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2413 /* 2414 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2415 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2416 */ 2417 if (ccb->csio.dxfer_len > 0) { 2418 int error; 2419 2420 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2421 /*dma map*/ocb->dmamap, 2422 ccb, 2423 sbp_execute_ocb, 2424 ocb, 2425 /*flags*/0); 2426 if (error) 2427 printf("sbp: bus_dmamap_load error %d\n", error); 2428 } else 2429 sbp_execute_ocb(ocb, NULL, 0, 0); 2430 break; 2431 } 2432 case XPT_CALC_GEOMETRY: 2433 { 2434 struct ccb_calc_geometry *ccg; 2435 2436 ccg = &ccb->ccg; 2437 if (ccg->block_size == 0) { 2438 printf("sbp_action: block_size is 0.\n"); 2439 ccb->ccb_h.status = CAM_REQ_INVALID; 2440 xpt_done(ccb); 2441 break; 2442 } 2443 SBP_DEBUG(1) 2444 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2445 "Volume size = %jd\n", 2446 device_get_nameunit(sbp->fd.dev), 2447 cam_sim_path(sbp->sim), 2448 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2449 (uintmax_t)ccg->volume_size); 2450 END_DEBUG 2451 2452 cam_calc_geometry(ccg, /*extended*/1); 2453 xpt_done(ccb); 2454 break; 2455 } 2456 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2457 { 2458 2459 SBP_DEBUG(1) 2460 printf("%s:%d:XPT_RESET_BUS: \n", 2461 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2462 END_DEBUG 2463 2464 ccb->ccb_h.status = CAM_REQ_INVALID; 2465 xpt_done(ccb); 2466 break; 2467 } 2468 case XPT_PATH_INQ: /* Path routing inquiry */ 2469 { 2470 struct ccb_pathinq *cpi = &ccb->cpi; 2471 2472 SBP_DEBUG(1) 2473 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2474 device_get_nameunit(sbp->fd.dev), 2475 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2476 END_DEBUG 2477 cpi->version_num = 1; /* XXX??? */ 2478 cpi->hba_inquiry = PI_TAG_ABLE; 2479 cpi->target_sprt = 0; 2480 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2481 cpi->hba_eng_cnt = 0; 2482 cpi->max_target = SBP_NUM_TARGETS - 1; 2483 cpi->max_lun = SBP_NUM_LUNS - 1; 2484 cpi->initiator_id = SBP_INITIATOR; 2485 cpi->bus_id = sim->bus_id; 2486 cpi->base_transfer_speed = 400 * 1000 / 8; 2487 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2488 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2489 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2490 cpi->unit_number = sim->unit_number; 2491 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2492 cpi->transport_version = 2; 2493 cpi->protocol = PROTO_SCSI; 2494 cpi->protocol_version = SCSI_REV_2; 2495 2496 cpi->ccb_h.status = CAM_REQ_CMP; 2497 xpt_done(ccb); 2498 break; 2499 } 2500 case XPT_GET_TRAN_SETTINGS: 2501 { 2502 struct ccb_trans_settings *cts = &ccb->cts; 2503 struct ccb_trans_settings_scsi *scsi = 2504 &cts->proto_specific.scsi; 2505 struct ccb_trans_settings_spi *spi = 2506 &cts->xport_specific.spi; 2507 2508 cts->protocol = PROTO_SCSI; 2509 cts->protocol_version = SCSI_REV_2; 2510 cts->transport = XPORT_SPI; /* should have a FireWire */ 2511 cts->transport_version = 2; 2512 spi->valid = CTS_SPI_VALID_DISC; 2513 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2514 scsi->valid = CTS_SCSI_VALID_TQ; 2515 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2516 SBP_DEBUG(1) 2517 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2518 device_get_nameunit(sbp->fd.dev), 2519 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2520 END_DEBUG 2521 cts->ccb_h.status = CAM_REQ_CMP; 2522 xpt_done(ccb); 2523 break; 2524 } 2525 case XPT_ABORT: 2526 ccb->ccb_h.status = CAM_UA_ABORT; 2527 xpt_done(ccb); 2528 break; 2529 case XPT_SET_TRAN_SETTINGS: 2530 /* XXX */ 2531 default: 2532 ccb->ccb_h.status = CAM_REQ_INVALID; 2533 xpt_done(ccb); 2534 break; 2535 } 2536 return; 2537 } 2538 2539 static void 2540 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2541 { 2542 int i; 2543 struct sbp_ocb *ocb; 2544 struct sbp_ocb *prev; 2545 bus_dma_segment_t *s; 2546 2547 if (error) 2548 printf("sbp_execute_ocb: error=%d\n", error); 2549 2550 ocb = (struct sbp_ocb *)arg; 2551 2552 SBP_DEBUG(2) 2553 printf("sbp_execute_ocb: seg %d", seg); 2554 for (i = 0; i < seg; i++) 2555 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2556 (uintmax_t)segments[i].ds_len); 2557 printf("\n"); 2558 END_DEBUG 2559 2560 if (seg == 1) { 2561 /* direct pointer */ 2562 s = &segments[0]; 2563 if (s->ds_len > SBP_SEG_MAX) 2564 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2565 ocb->orb[3] = htonl(s->ds_addr); 2566 ocb->orb[4] |= htonl(s->ds_len); 2567 } else if (seg > 1) { 2568 /* page table */ 2569 for (i = 0; i < seg; i++) { 2570 s = &segments[i]; 2571 SBP_DEBUG(0) 2572 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2573 if (s->ds_len < 16) 2574 printf("sbp_execute_ocb: warning, " 2575 "segment length(%zd) is less than 16." 2576 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2577 END_DEBUG 2578 if (s->ds_len > SBP_SEG_MAX) 2579 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2580 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2581 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2582 } 2583 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2584 } 2585 2586 if (seg > 0) 2587 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2588 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2589 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2590 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2591 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2592 if (use_doorbell) { 2593 if (prev == NULL) { 2594 if (ocb->sdev->last_ocb != NULL) 2595 sbp_doorbell(ocb->sdev); 2596 else 2597 sbp_orb_pointer(ocb->sdev, ocb); 2598 } 2599 } else { 2600 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2601 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2602 sbp_orb_pointer(ocb->sdev, ocb); 2603 } 2604 } 2605 } 2606 2607 static void 2608 sbp_poll(struct cam_sim *sim) 2609 { 2610 struct sbp_softc *sbp; 2611 struct firewire_comm *fc; 2612 2613 sbp = (struct sbp_softc *)sim->softc; 2614 fc = sbp->fd.fc; 2615 2616 fc->poll(fc, 0, -1); 2617 2618 return; 2619 } 2620 2621 static struct sbp_ocb * 2622 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2623 { 2624 struct sbp_ocb *ocb; 2625 struct sbp_ocb *next; 2626 int order = 0; 2627 2628 SBP_DEBUG(1) 2629 device_printf(sdev->target->sbp->fd.dev, 2630 "%s:%s 0x%08x src %d\n", 2631 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2632 END_DEBUG 2633 SBP_LOCK_ASSERT(sdev->target->sbp); 2634 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2635 if (OCB_MATCH(ocb, sbp_status)) { 2636 /* found */ 2637 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2638 if (ocb->ccb != NULL) 2639 callout_stop(&ocb->timer); 2640 if (ntohl(ocb->orb[4]) & 0xffff) { 2641 bus_dmamap_sync(sdev->target->sbp->dmat, 2642 ocb->dmamap, 2643 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2644 BUS_DMASYNC_POSTREAD : 2645 BUS_DMASYNC_POSTWRITE); 2646 bus_dmamap_unload(sdev->target->sbp->dmat, 2647 ocb->dmamap); 2648 } 2649 if (!use_doorbell) { 2650 if (sbp_status->src == SRC_NO_NEXT) { 2651 if (next != NULL) 2652 sbp_orb_pointer(sdev, next); 2653 else if (order > 0) { 2654 /* 2655 * Unordered execution 2656 * We need to send pointer for 2657 * next ORB 2658 */ 2659 sdev->flags |= ORB_LINK_DEAD; 2660 } 2661 } 2662 } else { 2663 /* 2664 * XXX this is not correct for unordered 2665 * execution. 2666 */ 2667 if (sdev->last_ocb != NULL) { 2668 sbp_free_ocb(sdev, sdev->last_ocb); 2669 } 2670 sdev->last_ocb = ocb; 2671 if (next != NULL && 2672 sbp_status->src == SRC_NO_NEXT) 2673 sbp_doorbell(sdev); 2674 } 2675 break; 2676 } else 2677 order++; 2678 } 2679 SBP_DEBUG(0) 2680 if (ocb && order > 0) { 2681 device_printf(sdev->target->sbp->fd.dev, 2682 "%s:%s unordered execution order:%d\n", 2683 __func__, sdev->bustgtlun, order); 2684 } 2685 END_DEBUG 2686 return (ocb); 2687 } 2688 2689 static struct sbp_ocb * 2690 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2691 { 2692 struct sbp_ocb *prev, *prev2; 2693 2694 SBP_LOCK_ASSERT(sdev->target->sbp); 2695 SBP_DEBUG(1) 2696 device_printf(sdev->target->sbp->fd.dev, 2697 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2698 END_DEBUG 2699 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2700 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2701 2702 if (ocb->ccb != NULL) { 2703 callout_reset_sbt(&ocb->timer, 2704 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2705 ocb, 0); 2706 } 2707 2708 if (use_doorbell && prev == NULL) 2709 prev2 = sdev->last_ocb; 2710 2711 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2712 SBP_DEBUG(1) 2713 printf("linking chain 0x%jx -> 0x%jx\n", 2714 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2715 END_DEBUG 2716 /* 2717 * Suppress compiler optimization so that orb[1] must be written first. 2718 * XXX We may need an explicit memory barrier for other architectures 2719 * other than i386/amd64. 2720 */ 2721 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2722 *(volatile uint32_t *)&prev2->orb[0] = 0; 2723 } 2724 2725 return prev; 2726 } 2727 2728 static struct sbp_ocb * 2729 sbp_get_ocb(struct sbp_dev *sdev) 2730 { 2731 struct sbp_ocb *ocb; 2732 2733 SBP_LOCK_ASSERT(sdev->target->sbp); 2734 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2735 if (ocb == NULL) { 2736 sdev->flags |= ORB_SHORTAGE; 2737 printf("ocb shortage!!!\n"); 2738 return NULL; 2739 } 2740 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2741 ocb->ccb = NULL; 2742 return (ocb); 2743 } 2744 2745 static void 2746 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2747 { 2748 ocb->flags = 0; 2749 ocb->ccb = NULL; 2750 2751 SBP_LOCK_ASSERT(sdev->target->sbp); 2752 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2753 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2754 int count; 2755 2756 sdev->flags &= ~ORB_SHORTAGE; 2757 count = sdev->freeze; 2758 sdev->freeze = 0; 2759 xpt_release_devq(sdev->path, count, TRUE); 2760 } 2761 } 2762 2763 static void 2764 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2765 { 2766 struct sbp_dev *sdev; 2767 2768 sdev = ocb->sdev; 2769 SBP_LOCK_ASSERT(sdev->target->sbp); 2770 SBP_DEBUG(0) 2771 device_printf(sdev->target->sbp->fd.dev, 2772 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2773 END_DEBUG 2774 SBP_DEBUG(1) 2775 if (ocb->ccb != NULL) 2776 sbp_print_scsi_cmd(ocb); 2777 END_DEBUG 2778 if (ntohl(ocb->orb[4]) & 0xffff) { 2779 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2780 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2781 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2782 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2783 } 2784 if (ocb->ccb != NULL) { 2785 callout_stop(&ocb->timer); 2786 ocb->ccb->ccb_h.status = status; 2787 xpt_done(ocb->ccb); 2788 } 2789 sbp_free_ocb(sdev, ocb); 2790 } 2791 2792 static void 2793 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2794 { 2795 struct sbp_ocb *ocb, *next; 2796 STAILQ_HEAD(, sbp_ocb) temp; 2797 2798 STAILQ_INIT(&temp); 2799 SBP_LOCK_ASSERT(sdev->target->sbp); 2800 STAILQ_CONCAT(&temp, &sdev->ocbs); 2801 STAILQ_INIT(&sdev->ocbs); 2802 2803 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2804 sbp_abort_ocb(ocb, status); 2805 } 2806 if (sdev->last_ocb != NULL) { 2807 sbp_free_ocb(sdev, sdev->last_ocb); 2808 sdev->last_ocb = NULL; 2809 } 2810 } 2811 2812 static devclass_t sbp_devclass; 2813 2814 static device_method_t sbp_methods[] = { 2815 /* device interface */ 2816 DEVMETHOD(device_identify, sbp_identify), 2817 DEVMETHOD(device_probe, sbp_probe), 2818 DEVMETHOD(device_attach, sbp_attach), 2819 DEVMETHOD(device_detach, sbp_detach), 2820 DEVMETHOD(device_shutdown, sbp_shutdown), 2821 2822 { 0, 0 } 2823 }; 2824 2825 static driver_t sbp_driver = { 2826 "sbp", 2827 sbp_methods, 2828 sizeof(struct sbp_softc), 2829 }; 2830 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2831 MODULE_VERSION(sbp, 1); 2832 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2833 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2834