1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2003 Hidetoshi Shimokawa 5 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the acknowledgement as bellow: 18 * 19 * This product includes software developed by K. Kobayashi and H. Shimokawa 20 * 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 27 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 32 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 * 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/module.h> 43 #include <sys/bus.h> 44 #include <sys/kernel.h> 45 #include <sys/sysctl.h> 46 #include <machine/bus.h> 47 #include <sys/malloc.h> 48 #include <sys/lock.h> 49 #include <sys/mutex.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_sim.h> 54 #include <cam/cam_xpt_sim.h> 55 #include <cam/cam_debug.h> 56 #include <cam/cam_periph.h> 57 #include <cam/scsi/scsi_all.h> 58 59 #include <dev/firewire/firewire.h> 60 #include <dev/firewire/firewirereg.h> 61 #include <dev/firewire/fwdma.h> 62 #include <dev/firewire/iec13213.h> 63 #include <dev/firewire/sbp.h> 64 65 #define ccb_sdev_ptr spriv_ptr0 66 #define ccb_sbp_ptr spriv_ptr1 67 68 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 69 /* 70 * Scan_bus doesn't work for more than 8 LUNs 71 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 72 */ 73 #define SBP_NUM_LUNS 64 74 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) 75 #define SBP_DMA_SIZE PAGE_SIZE 76 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 77 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 78 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 79 80 /* 81 * STATUS FIFO addressing 82 * bit 83 *----------------------- 84 * 0- 1( 2): 0 (alignment) 85 * 2- 7( 6): target 86 * 8-15( 8): lun 87 * 16-31( 8): reserved 88 * 32-47(16): SBP_BIND_HI 89 * 48-64(16): bus_id, node_id 90 */ 91 #define SBP_BIND_HI 0x1 92 #define SBP_DEV2ADDR(t, l) \ 93 (((u_int64_t)SBP_BIND_HI << 32) \ 94 | (((l) & 0xff) << 8) \ 95 | (((t) & 0x3f) << 2)) 96 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 97 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 98 #define SBP_INITIATOR 7 99 100 static char *orb_fun_name[] = { 101 ORB_FUN_NAMES 102 }; 103 104 static int debug = 0; 105 static int auto_login = 1; 106 static int max_speed = -1; 107 static int sbp_cold = 1; 108 static int ex_login = 1; 109 static int login_delay = 1000; /* msec */ 110 static int scan_delay = 500; /* msec */ 111 static int use_doorbell = 0; 112 static int sbp_tags = 0; 113 114 SYSCTL_DECL(_hw_firewire); 115 static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 116 "SBP-II Subsystem"); 117 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RWTUN, &debug, 0, 118 "SBP debug flag"); 119 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RWTUN, &auto_login, 0, 120 "SBP perform login automatically"); 121 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RWTUN, &max_speed, 0, 122 "SBP transfer max speed"); 123 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RWTUN, 124 &ex_login, 0, "SBP enable exclusive login"); 125 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RWTUN, 126 &login_delay, 0, "SBP login delay in msec"); 127 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RWTUN, 128 &scan_delay, 0, "SBP scan delay in msec"); 129 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RWTUN, 130 &use_doorbell, 0, "SBP use doorbell request"); 131 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RWTUN, &sbp_tags, 0, 132 "SBP tagged queuing support"); 133 134 #define NEED_RESPONSE 0 135 136 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 137 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 138 struct sbp_ocb { 139 STAILQ_ENTRY(sbp_ocb) ocb; 140 union ccb *ccb; 141 bus_addr_t bus_addr; 142 uint32_t orb[8]; 143 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 144 struct ind_ptr ind_ptr[SBP_IND_MAX]; 145 struct sbp_dev *sdev; 146 int flags; /* XXX should be removed */ 147 bus_dmamap_t dmamap; 148 struct callout timer; 149 }; 150 151 #define OCB_ACT_MGM 0 152 #define OCB_ACT_CMD 1 153 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 154 155 struct sbp_dev { 156 #define SBP_DEV_RESET 0 /* accept login */ 157 #define SBP_DEV_LOGIN 1 /* to login */ 158 #if 0 159 #define SBP_DEV_RECONN 2 /* to reconnect */ 160 #endif 161 #define SBP_DEV_TOATTACH 3 /* to attach */ 162 #define SBP_DEV_PROBE 4 /* scan lun */ 163 #define SBP_DEV_ATTACHED 5 /* in operation */ 164 #define SBP_DEV_DEAD 6 /* unavailable unit */ 165 #define SBP_DEV_RETRY 7 /* unavailable unit */ 166 uint8_t status:4, 167 timeout:4; 168 uint8_t type; 169 uint16_t lun_id; 170 uint16_t freeze; 171 #define ORB_LINK_DEAD (1 << 0) 172 #define VALID_LUN (1 << 1) 173 #define ORB_POINTER_ACTIVE (1 << 2) 174 #define ORB_POINTER_NEED (1 << 3) 175 #define ORB_DOORBELL_ACTIVE (1 << 4) 176 #define ORB_DOORBELL_NEED (1 << 5) 177 #define ORB_SHORTAGE (1 << 6) 178 uint16_t flags; 179 struct cam_path *path; 180 struct sbp_target *target; 181 struct fwdma_alloc dma; 182 struct sbp_login_res *login; 183 struct callout login_callout; 184 struct sbp_ocb *ocb; 185 STAILQ_HEAD(, sbp_ocb) ocbs; 186 STAILQ_HEAD(, sbp_ocb) free_ocbs; 187 struct sbp_ocb *last_ocb; 188 char vendor[32]; 189 char product[32]; 190 char revision[10]; 191 char bustgtlun[32]; 192 }; 193 194 struct sbp_target { 195 int target_id; 196 int num_lun; 197 struct sbp_dev **luns; 198 struct sbp_softc *sbp; 199 struct fw_device *fwdev; 200 uint32_t mgm_hi, mgm_lo; 201 struct sbp_ocb *mgm_ocb_cur; 202 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 203 struct callout mgm_ocb_timeout; 204 struct callout scan_callout; 205 STAILQ_HEAD(, fw_xfer) xferlist; 206 int n_xfer; 207 }; 208 209 struct sbp_softc { 210 struct firewire_dev_comm fd; 211 struct cam_sim *sim; 212 struct cam_path *path; 213 struct sbp_target targets[SBP_NUM_TARGETS]; 214 struct fw_bind fwb; 215 bus_dma_tag_t dmat; 216 struct timeval last_busreset; 217 #define SIMQ_FREEZED 1 218 int flags; 219 struct mtx mtx; 220 }; 221 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 222 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 223 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED) 224 225 static void sbp_post_explore (void *); 226 static void sbp_recv (struct fw_xfer *); 227 static void sbp_mgm_callback (struct fw_xfer *); 228 #if 0 229 static void sbp_cmd_callback (struct fw_xfer *); 230 #endif 231 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 232 static void sbp_doorbell(struct sbp_dev *); 233 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 234 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 235 static void sbp_abort_ocb (struct sbp_ocb *, int); 236 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 237 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 238 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 239 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 240 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 241 static void sbp_cam_detach_sdev(struct sbp_dev *); 242 static void sbp_free_sdev(struct sbp_dev *); 243 static void sbp_cam_detach_target (struct sbp_target *); 244 static void sbp_free_target (struct sbp_target *); 245 static void sbp_mgm_timeout (void *arg); 246 static void sbp_timeout (void *arg); 247 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 248 249 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 250 251 /* cam related functions */ 252 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 253 static void sbp_poll(struct cam_sim *sim); 254 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 255 static void sbp_cam_scan_target(void *arg); 256 257 static char *orb_status0[] = { 258 /* 0 */ "No additional information to report", 259 /* 1 */ "Request type not supported", 260 /* 2 */ "Speed not supported", 261 /* 3 */ "Page size not supported", 262 /* 4 */ "Access denied", 263 /* 5 */ "Logical unit not supported", 264 /* 6 */ "Maximum payload too small", 265 /* 7 */ "Reserved for future standardization", 266 /* 8 */ "Resources unavailable", 267 /* 9 */ "Function rejected", 268 /* A */ "Login ID not recognized", 269 /* B */ "Dummy ORB completed", 270 /* C */ "Request aborted", 271 /* FF */ "Unspecified error" 272 #define MAX_ORB_STATUS0 0xd 273 }; 274 275 static char *orb_status1_object[] = { 276 /* 0 */ "Operation request block (ORB)", 277 /* 1 */ "Data buffer", 278 /* 2 */ "Page table", 279 /* 3 */ "Unable to specify" 280 }; 281 282 static char *orb_status1_serial_bus_error[] = { 283 /* 0 */ "Missing acknowledge", 284 /* 1 */ "Reserved; not to be used", 285 /* 2 */ "Time-out error", 286 /* 3 */ "Reserved; not to be used", 287 /* 4 */ "Busy retry limit exceeded(X)", 288 /* 5 */ "Busy retry limit exceeded(A)", 289 /* 6 */ "Busy retry limit exceeded(B)", 290 /* 7 */ "Reserved for future standardization", 291 /* 8 */ "Reserved for future standardization", 292 /* 9 */ "Reserved for future standardization", 293 /* A */ "Reserved for future standardization", 294 /* B */ "Tardy retry limit exceeded", 295 /* C */ "Conflict error", 296 /* D */ "Data error", 297 /* E */ "Type error", 298 /* F */ "Address error" 299 }; 300 301 static void 302 sbp_identify(driver_t *driver, device_t parent) 303 { 304 SBP_DEBUG(0) 305 printf("sbp_identify\n"); 306 END_DEBUG 307 308 if (device_find_child(parent, "sbp", -1) == NULL) 309 BUS_ADD_CHILD(parent, 0, "sbp", -1); 310 } 311 312 /* 313 * sbp_probe() 314 */ 315 static int 316 sbp_probe(device_t dev) 317 { 318 319 SBP_DEBUG(0) 320 printf("sbp_probe\n"); 321 END_DEBUG 322 323 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 324 325 #if 0 326 if (bootverbose) 327 debug = bootverbose; 328 #endif 329 330 return (0); 331 } 332 333 /* 334 * Display device characteristics on the console 335 */ 336 static void 337 sbp_show_sdev_info(struct sbp_dev *sdev) 338 { 339 struct fw_device *fwdev; 340 341 fwdev = sdev->target->fwdev; 342 device_printf(sdev->target->sbp->fd.dev, 343 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 344 "speed:%d maxrec:%d\n", 345 __func__, 346 sdev->bustgtlun, 347 (sdev->type & 0x40) >> 6, 348 (sdev->type & 0x1f), 349 fwdev->eui.hi, 350 fwdev->eui.lo, 351 fwdev->dst, 352 fwdev->speed, 353 fwdev->maxrec); 354 355 device_printf(sdev->target->sbp->fd.dev, 356 "%s: %s '%s' '%s' '%s'\n", 357 __func__, 358 sdev->bustgtlun, 359 sdev->vendor, 360 sdev->product, 361 sdev->revision); 362 } 363 364 static struct { 365 int bus; 366 int target; 367 struct fw_eui64 eui; 368 } wired[] = { 369 /* Bus Target EUI64 */ 370 #if 0 371 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 372 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 373 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 374 #endif 375 {-1, -1, {0,0}} 376 }; 377 378 static int 379 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 380 { 381 int bus, i, target=-1; 382 char w[SBP_NUM_TARGETS]; 383 384 bzero(w, sizeof(w)); 385 bus = device_get_unit(sbp->fd.dev); 386 387 /* XXX wired-down configuration should be gotten from 388 tunable or device hint */ 389 for (i = 0; wired[i].bus >= 0; i++) { 390 if (wired[i].bus == bus) { 391 w[wired[i].target] = 1; 392 if (wired[i].eui.hi == fwdev->eui.hi && 393 wired[i].eui.lo == fwdev->eui.lo) 394 target = wired[i].target; 395 } 396 } 397 if (target >= 0) { 398 if (target < SBP_NUM_TARGETS && 399 sbp->targets[target].fwdev == NULL) 400 return (target); 401 device_printf(sbp->fd.dev, 402 "target %d is not free for %08x:%08x\n", 403 target, fwdev->eui.hi, fwdev->eui.lo); 404 target = -1; 405 } 406 /* non-wired target */ 407 for (i = 0; i < SBP_NUM_TARGETS; i++) 408 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 409 target = i; 410 break; 411 } 412 413 return target; 414 } 415 416 static void 417 sbp_alloc_lun(struct sbp_target *target) 418 { 419 struct crom_context cc; 420 struct csrreg *reg; 421 struct sbp_dev *sdev, **newluns; 422 struct sbp_softc *sbp; 423 int maxlun, lun, i; 424 425 sbp = target->sbp; 426 crom_init_context(&cc, target->fwdev->csrrom); 427 /* XXX shoud parse appropriate unit directories only */ 428 maxlun = -1; 429 while (cc.depth >= 0) { 430 reg = crom_search_key(&cc, CROM_LUN); 431 if (reg == NULL) 432 break; 433 lun = reg->val & 0xffff; 434 SBP_DEBUG(0) 435 printf("target %d lun %d found\n", target->target_id, lun); 436 END_DEBUG 437 if (maxlun < lun) 438 maxlun = lun; 439 crom_next(&cc); 440 } 441 if (maxlun < 0) 442 device_printf(target->sbp->fd.dev, "%d no LUN found\n", 443 target->target_id); 444 445 maxlun++; 446 if (maxlun >= SBP_NUM_LUNS) 447 maxlun = SBP_NUM_LUNS; 448 449 /* Invalidiate stale devices */ 450 for (lun = 0; lun < target->num_lun; lun++) { 451 sdev = target->luns[lun]; 452 if (sdev == NULL) 453 continue; 454 sdev->flags &= ~VALID_LUN; 455 if (lun >= maxlun) { 456 /* lost device */ 457 sbp_cam_detach_sdev(sdev); 458 sbp_free_sdev(sdev); 459 target->luns[lun] = NULL; 460 } 461 } 462 463 /* Reallocate */ 464 if (maxlun != target->num_lun) { 465 newluns = (struct sbp_dev **) realloc(target->luns, 466 sizeof(struct sbp_dev *) * maxlun, 467 M_SBP, M_NOWAIT | M_ZERO); 468 469 if (newluns == NULL) { 470 printf("%s: realloc failed\n", __func__); 471 newluns = target->luns; 472 maxlun = target->num_lun; 473 } 474 475 /* 476 * We must zero the extended region for the case 477 * realloc() doesn't allocate new buffer. 478 */ 479 if (maxlun > target->num_lun) 480 bzero(&newluns[target->num_lun], 481 sizeof(struct sbp_dev *) * 482 (maxlun - target->num_lun)); 483 484 target->luns = newluns; 485 target->num_lun = maxlun; 486 } 487 488 crom_init_context(&cc, target->fwdev->csrrom); 489 while (cc.depth >= 0) { 490 int new = 0; 491 492 reg = crom_search_key(&cc, CROM_LUN); 493 if (reg == NULL) 494 break; 495 lun = reg->val & 0xffff; 496 if (lun >= SBP_NUM_LUNS) { 497 printf("too large lun %d\n", lun); 498 goto next; 499 } 500 501 sdev = target->luns[lun]; 502 if (sdev == NULL) { 503 sdev = malloc(sizeof(struct sbp_dev), 504 M_SBP, M_NOWAIT | M_ZERO); 505 if (sdev == NULL) { 506 printf("%s: malloc failed\n", __func__); 507 goto next; 508 } 509 target->luns[lun] = sdev; 510 sdev->lun_id = lun; 511 sdev->target = target; 512 STAILQ_INIT(&sdev->ocbs); 513 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); 514 sdev->status = SBP_DEV_RESET; 515 new = 1; 516 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 517 device_get_nameunit(sdev->target->sbp->fd.dev), 518 sdev->target->target_id, 519 sdev->lun_id); 520 } 521 sdev->flags |= VALID_LUN; 522 sdev->type = (reg->val & 0xff0000) >> 16; 523 524 if (new == 0) 525 goto next; 526 527 fwdma_malloc(sbp->fd.fc, 528 /* alignment */ sizeof(uint32_t), 529 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 530 BUS_DMA_COHERENT); 531 if (sdev->dma.v_addr == NULL) { 532 printf("%s: dma space allocation failed\n", 533 __func__); 534 free(sdev, M_SBP); 535 target->luns[lun] = NULL; 536 goto next; 537 } 538 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 539 sdev->ocb = (struct sbp_ocb *) 540 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 541 bzero((char *)sdev->ocb, 542 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 543 544 STAILQ_INIT(&sdev->free_ocbs); 545 for (i = 0; i < SBP_QUEUE_LEN; i++) { 546 struct sbp_ocb *ocb; 547 ocb = &sdev->ocb[i]; 548 ocb->bus_addr = sdev->dma.bus_addr 549 + SBP_LOGIN_SIZE 550 + sizeof(struct sbp_ocb) * i 551 + offsetof(struct sbp_ocb, orb[0]); 552 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 553 printf("sbp_attach: cannot create dmamap\n"); 554 /* XXX */ 555 goto next; 556 } 557 callout_init_mtx(&ocb->timer, &sbp->mtx, 0); 558 SBP_LOCK(sbp); 559 sbp_free_ocb(sdev, ocb); 560 SBP_UNLOCK(sbp); 561 } 562 next: 563 crom_next(&cc); 564 } 565 566 for (lun = 0; lun < target->num_lun; lun++) { 567 sdev = target->luns[lun]; 568 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 569 sbp_cam_detach_sdev(sdev); 570 sbp_free_sdev(sdev); 571 target->luns[lun] = NULL; 572 } 573 } 574 } 575 576 static struct sbp_target * 577 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 578 { 579 int i; 580 struct sbp_target *target; 581 struct crom_context cc; 582 struct csrreg *reg; 583 584 SBP_DEBUG(1) 585 printf("sbp_alloc_target\n"); 586 END_DEBUG 587 i = sbp_new_target(sbp, fwdev); 588 if (i < 0) { 589 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 590 return NULL; 591 } 592 /* new target */ 593 target = &sbp->targets[i]; 594 target->fwdev = fwdev; 595 target->target_id = i; 596 /* XXX we may want to reload mgm port after each bus reset */ 597 /* XXX there might be multiple management agents */ 598 crom_init_context(&cc, target->fwdev->csrrom); 599 reg = crom_search_key(&cc, CROM_MGM); 600 if (reg == NULL || reg->val == 0) { 601 printf("NULL management address\n"); 602 target->fwdev = NULL; 603 return NULL; 604 } 605 target->mgm_hi = 0xffff; 606 target->mgm_lo = 0xf0000000 | (reg->val << 2); 607 target->mgm_ocb_cur = NULL; 608 SBP_DEBUG(1) 609 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 610 END_DEBUG 611 STAILQ_INIT(&target->xferlist); 612 target->n_xfer = 0; 613 STAILQ_INIT(&target->mgm_ocb_queue); 614 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0); 615 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0); 616 617 target->luns = NULL; 618 target->num_lun = 0; 619 return target; 620 } 621 622 static void 623 sbp_probe_lun(struct sbp_dev *sdev) 624 { 625 struct fw_device *fwdev; 626 struct crom_context c, *cc = &c; 627 struct csrreg *reg; 628 629 bzero(sdev->vendor, sizeof(sdev->vendor)); 630 bzero(sdev->product, sizeof(sdev->product)); 631 632 fwdev = sdev->target->fwdev; 633 crom_init_context(cc, fwdev->csrrom); 634 /* get vendor string */ 635 crom_search_key(cc, CSRKEY_VENDOR); 636 crom_next(cc); 637 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 638 /* skip to the unit directory for SBP-2 */ 639 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 640 if (reg->val == CSRVAL_T10SBP2) 641 break; 642 crom_next(cc); 643 } 644 /* get firmware revision */ 645 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 646 if (reg != NULL) 647 snprintf(sdev->revision, sizeof(sdev->revision), 648 "%06x", reg->val); 649 /* get product string */ 650 crom_search_key(cc, CSRKEY_MODEL); 651 crom_next(cc); 652 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 653 } 654 655 static void 656 sbp_login_callout(void *arg) 657 { 658 struct sbp_dev *sdev = (struct sbp_dev *)arg; 659 SBP_LOCK_ASSERT(sdev->target->sbp); 660 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 661 } 662 663 static void 664 sbp_login(struct sbp_dev *sdev) 665 { 666 struct timeval delta; 667 struct timeval t; 668 int ticks = 0; 669 670 microtime(&delta); 671 timevalsub(&delta, &sdev->target->sbp->last_busreset); 672 t.tv_sec = login_delay / 1000; 673 t.tv_usec = (login_delay % 1000) * 1000; 674 timevalsub(&t, &delta); 675 if (t.tv_sec >= 0 && t.tv_usec > 0) 676 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 677 SBP_DEBUG(0) 678 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 679 (intmax_t)t.tv_sec, t.tv_usec, ticks); 680 END_DEBUG 681 callout_reset(&sdev->login_callout, ticks, 682 sbp_login_callout, (void *)(sdev)); 683 } 684 685 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 686 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 687 688 static void 689 sbp_probe_target(struct sbp_target *target) 690 { 691 struct sbp_softc *sbp = target->sbp; 692 struct sbp_dev *sdev; 693 int i, alive; 694 695 alive = SBP_FWDEV_ALIVE(target->fwdev); 696 SBP_DEBUG(1) 697 device_printf(sbp->fd.dev, "%s %d%salive\n", 698 __func__, target->target_id, 699 (!alive) ? " not " : ""); 700 END_DEBUG 701 702 sbp_alloc_lun(target); 703 704 /* XXX untimeout mgm_ocb and dequeue */ 705 for (i=0; i < target->num_lun; i++) { 706 sdev = target->luns[i]; 707 if (sdev == NULL) 708 continue; 709 if (alive && (sdev->status != SBP_DEV_DEAD)) { 710 if (sdev->path != NULL) { 711 xpt_freeze_devq(sdev->path, 1); 712 sdev->freeze++; 713 } 714 sbp_probe_lun(sdev); 715 sbp_show_sdev_info(sdev); 716 717 SBP_LOCK(sbp); 718 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 719 SBP_UNLOCK(sbp); 720 switch (sdev->status) { 721 case SBP_DEV_RESET: 722 /* new or revived target */ 723 if (auto_login) 724 sbp_login(sdev); 725 break; 726 case SBP_DEV_TOATTACH: 727 case SBP_DEV_PROBE: 728 case SBP_DEV_ATTACHED: 729 case SBP_DEV_RETRY: 730 default: 731 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 732 break; 733 } 734 } else { 735 switch (sdev->status) { 736 case SBP_DEV_ATTACHED: 737 SBP_DEBUG(0) 738 /* the device has gone */ 739 device_printf(sbp->fd.dev, "%s: lost target\n", 740 __func__); 741 END_DEBUG 742 if (sdev->path) { 743 xpt_freeze_devq(sdev->path, 1); 744 sdev->freeze++; 745 } 746 sdev->status = SBP_DEV_RETRY; 747 sbp_cam_detach_sdev(sdev); 748 sbp_free_sdev(sdev); 749 target->luns[i] = NULL; 750 break; 751 case SBP_DEV_PROBE: 752 case SBP_DEV_TOATTACH: 753 sdev->status = SBP_DEV_RESET; 754 break; 755 case SBP_DEV_RETRY: 756 case SBP_DEV_RESET: 757 case SBP_DEV_DEAD: 758 break; 759 } 760 } 761 } 762 } 763 764 static void 765 sbp_post_busreset(void *arg) 766 { 767 struct sbp_softc *sbp; 768 769 sbp = (struct sbp_softc *)arg; 770 SBP_DEBUG(0) 771 printf("sbp_post_busreset\n"); 772 END_DEBUG 773 SBP_LOCK(sbp); 774 if ((sbp->flags & SIMQ_FREEZED) == 0) { 775 xpt_freeze_simq(sbp->sim, /*count*/1); 776 sbp->flags |= SIMQ_FREEZED; 777 } 778 microtime(&sbp->last_busreset); 779 SBP_UNLOCK(sbp); 780 } 781 782 static void 783 sbp_post_explore(void *arg) 784 { 785 struct sbp_softc *sbp = (struct sbp_softc *)arg; 786 struct sbp_target *target; 787 struct fw_device *fwdev; 788 int i, alive; 789 790 SBP_DEBUG(0) 791 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 792 END_DEBUG 793 /* We need physical access */ 794 if (!firewire_phydma_enable) 795 return; 796 797 if (sbp_cold > 0) 798 sbp_cold--; 799 800 SBP_LOCK(sbp); 801 802 /* Garbage Collection */ 803 for (i = 0; i < SBP_NUM_TARGETS; i++) { 804 target = &sbp->targets[i]; 805 if (target->fwdev == NULL) 806 continue; 807 808 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 809 if (target->fwdev == fwdev) 810 break; 811 if (fwdev == NULL) { 812 /* device has removed in lower driver */ 813 sbp_cam_detach_target(target); 814 sbp_free_target(target); 815 } 816 } 817 818 /* traverse device list */ 819 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 820 SBP_DEBUG(0) 821 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 822 __func__, fwdev->eui.hi, fwdev->eui.lo, 823 (fwdev->status != FWDEVATTACHED) ? "not" : "", 824 fwdev->status); 825 END_DEBUG 826 alive = SBP_FWDEV_ALIVE(fwdev); 827 for (i = 0; i < SBP_NUM_TARGETS; i++) { 828 target = &sbp->targets[i]; 829 if (target->fwdev == fwdev) { 830 /* known target */ 831 break; 832 } 833 } 834 if (i == SBP_NUM_TARGETS) { 835 if (alive) { 836 /* new target */ 837 target = sbp_alloc_target(sbp, fwdev); 838 if (target == NULL) 839 continue; 840 } else { 841 continue; 842 } 843 } 844 845 /* 846 * It is safe to drop the lock here as the target is already 847 * reserved, so there should be no contenders for it. 848 * And the target is not yet exposed, so there should not be 849 * any other accesses to it. 850 * Finally, the list being iterated is protected somewhere else. 851 */ 852 SBP_UNLOCK(sbp); 853 sbp_probe_target(target); 854 SBP_LOCK(sbp); 855 if (target->num_lun == 0) 856 sbp_free_target(target); 857 } 858 if ((sbp->flags & SIMQ_FREEZED) != 0) { 859 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 860 sbp->flags &= ~SIMQ_FREEZED; 861 } 862 SBP_UNLOCK(sbp); 863 } 864 865 #if NEED_RESPONSE 866 static void 867 sbp_loginres_callback(struct fw_xfer *xfer) 868 { 869 struct sbp_dev *sdev; 870 sdev = (struct sbp_dev *)xfer->sc; 871 SBP_DEBUG(1) 872 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 873 END_DEBUG 874 /* recycle */ 875 SBP_LOCK(sdev->target->sbp); 876 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 877 SBP_UNLOCK(sdev->target->sbp); 878 return; 879 } 880 #endif 881 882 static __inline void 883 sbp_xfer_free(struct fw_xfer *xfer) 884 { 885 struct sbp_dev *sdev; 886 887 sdev = (struct sbp_dev *)xfer->sc; 888 fw_xfer_unload(xfer); 889 SBP_LOCK_ASSERT(sdev->target->sbp); 890 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 891 } 892 893 static void 894 sbp_reset_start_callback(struct fw_xfer *xfer) 895 { 896 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 897 struct sbp_target *target = sdev->target; 898 int i; 899 900 if (xfer->resp != 0) { 901 device_printf(sdev->target->sbp->fd.dev, 902 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 903 } 904 905 SBP_LOCK(target->sbp); 906 for (i = 0; i < target->num_lun; i++) { 907 tsdev = target->luns[i]; 908 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 909 sbp_login(tsdev); 910 } 911 SBP_UNLOCK(target->sbp); 912 } 913 914 static void 915 sbp_reset_start(struct sbp_dev *sdev) 916 { 917 struct fw_xfer *xfer; 918 struct fw_pkt *fp; 919 920 SBP_DEBUG(0) 921 device_printf(sdev->target->sbp->fd.dev, 922 "%s:%s\n", __func__,sdev->bustgtlun); 923 END_DEBUG 924 925 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 926 xfer->hand = sbp_reset_start_callback; 927 fp = &xfer->send.hdr; 928 fp->mode.wreqq.dest_hi = 0xffff; 929 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 930 fp->mode.wreqq.data = htonl(0xf); 931 fw_asyreq(xfer->fc, -1, xfer); 932 } 933 934 static void 935 sbp_mgm_callback(struct fw_xfer *xfer) 936 { 937 struct sbp_dev *sdev; 938 int resp; 939 940 sdev = (struct sbp_dev *)xfer->sc; 941 942 SBP_DEBUG(1) 943 device_printf(sdev->target->sbp->fd.dev, 944 "%s:%s\n", __func__, sdev->bustgtlun); 945 END_DEBUG 946 resp = xfer->resp; 947 SBP_LOCK(sdev->target->sbp); 948 sbp_xfer_free(xfer); 949 SBP_UNLOCK(sdev->target->sbp); 950 } 951 952 static struct sbp_dev * 953 sbp_next_dev(struct sbp_target *target, int lun) 954 { 955 struct sbp_dev **sdevp; 956 int i; 957 958 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 959 i++, sdevp++) 960 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 961 return (*sdevp); 962 return (NULL); 963 } 964 965 #define SCAN_PRI 1 966 static void 967 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 968 { 969 struct sbp_softc *sbp; 970 struct sbp_target *target; 971 struct sbp_dev *sdev; 972 973 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 974 target = sdev->target; 975 sbp = target->sbp; 976 SBP_LOCK(sbp); 977 SBP_DEBUG(0) 978 device_printf(sbp->fd.dev, 979 "%s:%s\n", __func__, sdev->bustgtlun); 980 END_DEBUG 981 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 982 sdev->status = SBP_DEV_ATTACHED; 983 } else { 984 device_printf(sbp->fd.dev, 985 "%s:%s failed\n", __func__, sdev->bustgtlun); 986 } 987 sdev = sbp_next_dev(target, sdev->lun_id + 1); 988 if (sdev == NULL) { 989 SBP_UNLOCK(sbp); 990 free(ccb, M_SBP); 991 return; 992 } 993 /* reuse ccb */ 994 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 995 ccb->ccb_h.ccb_sdev_ptr = sdev; 996 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 997 SBP_UNLOCK(sbp); 998 999 xpt_action(ccb); 1000 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1001 sdev->freeze = 1; 1002 } 1003 1004 static void 1005 sbp_cam_scan_target(void *arg) 1006 { 1007 struct sbp_target *target = (struct sbp_target *)arg; 1008 struct sbp_dev *sdev; 1009 union ccb *ccb; 1010 1011 SBP_LOCK_ASSERT(target->sbp); 1012 sdev = sbp_next_dev(target, 0); 1013 if (sdev == NULL) { 1014 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1015 target->target_id); 1016 return; 1017 } 1018 SBP_DEBUG(0) 1019 device_printf(sdev->target->sbp->fd.dev, 1020 "%s:%s\n", __func__, sdev->bustgtlun); 1021 END_DEBUG 1022 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1023 if (ccb == NULL) { 1024 printf("sbp_cam_scan_target: malloc failed\n"); 1025 return; 1026 } 1027 SBP_UNLOCK(target->sbp); 1028 1029 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1030 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1031 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1032 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1033 ccb->crcn.flags = CAM_FLAG_NONE; 1034 ccb->ccb_h.ccb_sdev_ptr = sdev; 1035 1036 /* The scan is in progress now. */ 1037 xpt_action(ccb); 1038 1039 SBP_LOCK(target->sbp); 1040 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1041 sdev->freeze = 1; 1042 } 1043 1044 static __inline void 1045 sbp_scan_dev(struct sbp_dev *sdev) 1046 { 1047 sdev->status = SBP_DEV_PROBE; 1048 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1049 sbp_cam_scan_target, (void *)sdev->target, 0); 1050 } 1051 1052 static void 1053 sbp_do_attach(struct fw_xfer *xfer) 1054 { 1055 struct sbp_dev *sdev; 1056 struct sbp_target *target; 1057 struct sbp_softc *sbp; 1058 1059 sdev = (struct sbp_dev *)xfer->sc; 1060 target = sdev->target; 1061 sbp = target->sbp; 1062 SBP_LOCK(sbp); 1063 SBP_DEBUG(0) 1064 device_printf(sdev->target->sbp->fd.dev, 1065 "%s:%s\n", __func__, sdev->bustgtlun); 1066 END_DEBUG 1067 sbp_xfer_free(xfer); 1068 1069 if (sdev->path == NULL) 1070 xpt_create_path(&sdev->path, NULL, 1071 cam_sim_path(target->sbp->sim), 1072 target->target_id, sdev->lun_id); 1073 1074 /* 1075 * Let CAM scan the bus if we are in the boot process. 1076 * XXX xpt_scan_bus cannot detect LUN larger than 0 1077 * if LUN 0 doesn't exist. 1078 */ 1079 if (sbp_cold > 0) { 1080 sdev->status = SBP_DEV_ATTACHED; 1081 SBP_UNLOCK(sbp); 1082 return; 1083 } 1084 1085 sbp_scan_dev(sdev); 1086 SBP_UNLOCK(sbp); 1087 } 1088 1089 static void 1090 sbp_agent_reset_callback(struct fw_xfer *xfer) 1091 { 1092 struct sbp_dev *sdev; 1093 1094 sdev = (struct sbp_dev *)xfer->sc; 1095 SBP_DEBUG(1) 1096 device_printf(sdev->target->sbp->fd.dev, 1097 "%s:%s\n", __func__, sdev->bustgtlun); 1098 END_DEBUG 1099 if (xfer->resp != 0) { 1100 device_printf(sdev->target->sbp->fd.dev, 1101 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1102 } 1103 1104 SBP_LOCK(sdev->target->sbp); 1105 sbp_xfer_free(xfer); 1106 if (sdev->path) { 1107 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1108 sdev->freeze = 0; 1109 } 1110 SBP_UNLOCK(sdev->target->sbp); 1111 } 1112 1113 static void 1114 sbp_agent_reset(struct sbp_dev *sdev) 1115 { 1116 struct fw_xfer *xfer; 1117 struct fw_pkt *fp; 1118 1119 SBP_LOCK_ASSERT(sdev->target->sbp); 1120 SBP_DEBUG(0) 1121 device_printf(sdev->target->sbp->fd.dev, 1122 "%s:%s\n", __func__, sdev->bustgtlun); 1123 END_DEBUG 1124 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1125 if (xfer == NULL) 1126 return; 1127 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1128 xfer->hand = sbp_agent_reset_callback; 1129 else 1130 xfer->hand = sbp_do_attach; 1131 fp = &xfer->send.hdr; 1132 fp->mode.wreqq.data = htonl(0xf); 1133 fw_asyreq(xfer->fc, -1, xfer); 1134 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1135 } 1136 1137 static void 1138 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1139 { 1140 struct sbp_dev *sdev; 1141 1142 sdev = (struct sbp_dev *)xfer->sc; 1143 SBP_DEBUG(1) 1144 device_printf(sdev->target->sbp->fd.dev, 1145 "%s:%s\n", __func__, sdev->bustgtlun); 1146 END_DEBUG 1147 SBP_LOCK(sdev->target->sbp); 1148 sbp_xfer_free(xfer); 1149 sbp_agent_reset(sdev); 1150 SBP_UNLOCK(sdev->target->sbp); 1151 } 1152 1153 static void 1154 sbp_busy_timeout(struct sbp_dev *sdev) 1155 { 1156 struct fw_pkt *fp; 1157 struct fw_xfer *xfer; 1158 SBP_DEBUG(0) 1159 device_printf(sdev->target->sbp->fd.dev, 1160 "%s:%s\n", __func__, sdev->bustgtlun); 1161 END_DEBUG 1162 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1163 1164 xfer->hand = sbp_busy_timeout_callback; 1165 fp = &xfer->send.hdr; 1166 fp->mode.wreqq.dest_hi = 0xffff; 1167 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1168 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1169 fw_asyreq(xfer->fc, -1, xfer); 1170 } 1171 1172 static void 1173 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1174 { 1175 struct sbp_dev *sdev; 1176 sdev = (struct sbp_dev *)xfer->sc; 1177 1178 SBP_DEBUG(2) 1179 device_printf(sdev->target->sbp->fd.dev, 1180 "%s:%s\n", __func__, sdev->bustgtlun); 1181 END_DEBUG 1182 if (xfer->resp != 0) { 1183 /* XXX */ 1184 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1185 } 1186 SBP_LOCK(sdev->target->sbp); 1187 sbp_xfer_free(xfer); 1188 1189 sdev->flags &= ~ORB_POINTER_ACTIVE; 1190 1191 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1192 struct sbp_ocb *ocb; 1193 1194 sdev->flags &= ~ORB_POINTER_NEED; 1195 ocb = STAILQ_FIRST(&sdev->ocbs); 1196 if (ocb != NULL) 1197 sbp_orb_pointer(sdev, ocb); 1198 } 1199 SBP_UNLOCK(sdev->target->sbp); 1200 return; 1201 } 1202 1203 static void 1204 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1205 { 1206 struct fw_xfer *xfer; 1207 struct fw_pkt *fp; 1208 SBP_DEBUG(1) 1209 device_printf(sdev->target->sbp->fd.dev, 1210 "%s:%s 0x%08x\n", 1211 __func__, sdev->bustgtlun, 1212 (uint32_t)ocb->bus_addr); 1213 END_DEBUG 1214 1215 SBP_LOCK_ASSERT(sdev->target->sbp); 1216 1217 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1218 SBP_DEBUG(0) 1219 printf("%s: orb pointer active\n", __func__); 1220 END_DEBUG 1221 sdev->flags |= ORB_POINTER_NEED; 1222 return; 1223 } 1224 1225 sdev->flags |= ORB_POINTER_ACTIVE; 1226 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1227 if (xfer == NULL) 1228 return; 1229 xfer->hand = sbp_orb_pointer_callback; 1230 1231 fp = &xfer->send.hdr; 1232 fp->mode.wreqb.len = 8; 1233 fp->mode.wreqb.extcode = 0; 1234 xfer->send.payload[0] = 1235 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1236 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1237 1238 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1239 sbp_xfer_free(xfer); 1240 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1241 xpt_done(ocb->ccb); 1242 } 1243 } 1244 1245 static void 1246 sbp_doorbell_callback(struct fw_xfer *xfer) 1247 { 1248 struct sbp_dev *sdev; 1249 sdev = (struct sbp_dev *)xfer->sc; 1250 1251 SBP_DEBUG(1) 1252 device_printf(sdev->target->sbp->fd.dev, 1253 "%s:%s\n", __func__, sdev->bustgtlun); 1254 END_DEBUG 1255 if (xfer->resp != 0) { 1256 /* XXX */ 1257 device_printf(sdev->target->sbp->fd.dev, 1258 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1259 } 1260 SBP_LOCK(sdev->target->sbp); 1261 sbp_xfer_free(xfer); 1262 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1263 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1264 sdev->flags &= ~ORB_DOORBELL_NEED; 1265 sbp_doorbell(sdev); 1266 } 1267 SBP_UNLOCK(sdev->target->sbp); 1268 } 1269 1270 static void 1271 sbp_doorbell(struct sbp_dev *sdev) 1272 { 1273 struct fw_xfer *xfer; 1274 struct fw_pkt *fp; 1275 SBP_DEBUG(1) 1276 device_printf(sdev->target->sbp->fd.dev, 1277 "%s:%s\n", __func__, sdev->bustgtlun); 1278 END_DEBUG 1279 1280 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1281 sdev->flags |= ORB_DOORBELL_NEED; 1282 return; 1283 } 1284 sdev->flags |= ORB_DOORBELL_ACTIVE; 1285 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1286 if (xfer == NULL) 1287 return; 1288 xfer->hand = sbp_doorbell_callback; 1289 fp = &xfer->send.hdr; 1290 fp->mode.wreqq.data = htonl(0xf); 1291 fw_asyreq(xfer->fc, -1, xfer); 1292 } 1293 1294 static struct fw_xfer * 1295 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1296 { 1297 struct fw_xfer *xfer; 1298 struct fw_pkt *fp; 1299 struct sbp_target *target; 1300 int new = 0; 1301 1302 SBP_LOCK_ASSERT(sdev->target->sbp); 1303 1304 target = sdev->target; 1305 xfer = STAILQ_FIRST(&target->xferlist); 1306 if (xfer == NULL) { 1307 if (target->n_xfer > 5 /* XXX */) { 1308 printf("sbp: no more xfer for this target\n"); 1309 return (NULL); 1310 } 1311 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1312 if (xfer == NULL) { 1313 printf("sbp: fw_xfer_alloc_buf failed\n"); 1314 return NULL; 1315 } 1316 target->n_xfer++; 1317 if (debug) 1318 printf("sbp: alloc %d xfer\n", target->n_xfer); 1319 new = 1; 1320 } else { 1321 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1322 } 1323 1324 if (new) { 1325 xfer->recv.pay_len = 0; 1326 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1327 xfer->fc = sdev->target->sbp->fd.fc; 1328 } 1329 1330 if (tcode == FWTCODE_WREQB) 1331 xfer->send.pay_len = 8; 1332 else 1333 xfer->send.pay_len = 0; 1334 1335 xfer->sc = (caddr_t)sdev; 1336 fp = &xfer->send.hdr; 1337 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1338 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1339 fp->mode.wreqq.tlrt = 0; 1340 fp->mode.wreqq.tcode = tcode; 1341 fp->mode.wreqq.pri = 0; 1342 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1343 1344 return xfer; 1345 } 1346 1347 static void 1348 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1349 { 1350 struct fw_xfer *xfer; 1351 struct fw_pkt *fp; 1352 struct sbp_ocb *ocb; 1353 struct sbp_target *target; 1354 int nid; 1355 1356 target = sdev->target; 1357 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1358 1359 SBP_LOCK_ASSERT(target->sbp); 1360 if (func == ORB_FUN_RUNQUEUE) { 1361 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1362 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1363 return; 1364 } 1365 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1366 goto start; 1367 } 1368 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1369 /* XXX */ 1370 return; 1371 } 1372 ocb->flags = OCB_ACT_MGM; 1373 ocb->sdev = sdev; 1374 1375 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1376 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1377 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1378 1379 SBP_DEBUG(0) 1380 device_printf(sdev->target->sbp->fd.dev, 1381 "%s:%s %s\n", 1382 __func__,sdev->bustgtlun, 1383 orb_fun_name[(func >> 16) & 0xf]); 1384 END_DEBUG 1385 switch (func) { 1386 case ORB_FUN_LGI: 1387 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1388 ocb->orb[2] = htonl(nid << 16); 1389 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1390 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1391 if (ex_login) 1392 ocb->orb[4] |= htonl(ORB_EXV); 1393 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1394 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1395 break; 1396 case ORB_FUN_ATA: 1397 ocb->orb[0] = htonl((0 << 16) | 0); 1398 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1399 /* fall through */ 1400 case ORB_FUN_RCN: 1401 case ORB_FUN_LGO: 1402 case ORB_FUN_LUR: 1403 case ORB_FUN_RST: 1404 case ORB_FUN_ATS: 1405 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1406 break; 1407 } 1408 1409 if (target->mgm_ocb_cur != NULL) { 1410 /* there is a standing ORB */ 1411 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1412 return; 1413 } 1414 start: 1415 target->mgm_ocb_cur = ocb; 1416 1417 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1418 sbp_mgm_timeout, (caddr_t)ocb); 1419 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1420 if (xfer == NULL) { 1421 return; 1422 } 1423 xfer->hand = sbp_mgm_callback; 1424 1425 fp = &xfer->send.hdr; 1426 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1427 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1428 fp->mode.wreqb.len = 8; 1429 fp->mode.wreqb.extcode = 0; 1430 xfer->send.payload[0] = htonl(nid << 16); 1431 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1432 1433 fw_asyreq(xfer->fc, -1, xfer); 1434 } 1435 1436 static void 1437 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1438 { 1439 struct ccb_scsiio *csio; 1440 1441 csio = &ocb->ccb->csio; 1442 printf("%s:%d:%jx XPT_SCSI_IO: " 1443 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1444 ", flags: 0x%02x, " 1445 "%db cmd/%db data/%db sense\n", 1446 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1447 ocb->ccb->ccb_h.target_id, 1448 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1449 csio->cdb_io.cdb_bytes[0], 1450 csio->cdb_io.cdb_bytes[1], 1451 csio->cdb_io.cdb_bytes[2], 1452 csio->cdb_io.cdb_bytes[3], 1453 csio->cdb_io.cdb_bytes[4], 1454 csio->cdb_io.cdb_bytes[5], 1455 csio->cdb_io.cdb_bytes[6], 1456 csio->cdb_io.cdb_bytes[7], 1457 csio->cdb_io.cdb_bytes[8], 1458 csio->cdb_io.cdb_bytes[9], 1459 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1460 csio->cdb_len, csio->dxfer_len, 1461 csio->sense_len); 1462 } 1463 1464 static void 1465 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1466 { 1467 struct sbp_cmd_status *sbp_cmd_status; 1468 struct scsi_sense_data_fixed *sense; 1469 1470 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1471 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1472 1473 SBP_DEBUG(0) 1474 sbp_print_scsi_cmd(ocb); 1475 /* XXX need decode status */ 1476 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1477 ocb->sdev->bustgtlun, 1478 sbp_cmd_status->status, 1479 sbp_cmd_status->sfmt, 1480 sbp_cmd_status->valid, 1481 sbp_cmd_status->s_key, 1482 sbp_cmd_status->s_code, 1483 sbp_cmd_status->s_qlfr, 1484 sbp_status->len); 1485 END_DEBUG 1486 1487 switch (sbp_cmd_status->status) { 1488 case SCSI_STATUS_CHECK_COND: 1489 case SCSI_STATUS_BUSY: 1490 case SCSI_STATUS_CMD_TERMINATED: 1491 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1492 sense->error_code = SSD_CURRENT_ERROR; 1493 } else { 1494 sense->error_code = SSD_DEFERRED_ERROR; 1495 } 1496 if (sbp_cmd_status->valid) 1497 sense->error_code |= SSD_ERRCODE_VALID; 1498 sense->flags = sbp_cmd_status->s_key; 1499 if (sbp_cmd_status->mark) 1500 sense->flags |= SSD_FILEMARK; 1501 if (sbp_cmd_status->eom) 1502 sense->flags |= SSD_EOM; 1503 if (sbp_cmd_status->ill_len) 1504 sense->flags |= SSD_ILI; 1505 1506 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1507 1508 if (sbp_status->len <= 1) 1509 /* XXX not scsi status. shouldn't be happened */ 1510 sense->extra_len = 0; 1511 else if (sbp_status->len <= 4) 1512 /* add_sense_code(_qual), info, cmd_spec_info */ 1513 sense->extra_len = 6; 1514 else 1515 /* fru, sense_key_spec */ 1516 sense->extra_len = 10; 1517 1518 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1519 1520 sense->add_sense_code = sbp_cmd_status->s_code; 1521 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1522 sense->fru = sbp_cmd_status->fru; 1523 1524 bcopy(&sbp_cmd_status->s_keydep[0], 1525 &sense->sense_key_spec[0], 3); 1526 1527 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1528 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1529 | CAM_AUTOSNS_VALID; 1530 /* 1531 { 1532 uint8_t j, *tmp; 1533 tmp = sense; 1534 for (j = 0; j < 32; j += 8) { 1535 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1536 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1537 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1538 } 1539 1540 } 1541 */ 1542 break; 1543 default: 1544 device_printf(ocb->sdev->target->sbp->fd.dev, 1545 "%s:%s unknown scsi status 0x%x\n", 1546 __func__, ocb->sdev->bustgtlun, 1547 sbp_cmd_status->status); 1548 } 1549 } 1550 1551 static void 1552 sbp_fix_inq_data(struct sbp_ocb *ocb) 1553 { 1554 union ccb *ccb; 1555 struct sbp_dev *sdev; 1556 struct scsi_inquiry_data *inq; 1557 1558 ccb = ocb->ccb; 1559 sdev = ocb->sdev; 1560 1561 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1562 return; 1563 SBP_DEBUG(1) 1564 device_printf(sdev->target->sbp->fd.dev, 1565 "%s:%s\n", __func__, sdev->bustgtlun); 1566 END_DEBUG 1567 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1568 switch (SID_TYPE(inq)) { 1569 case T_DIRECT: 1570 #if 0 1571 /* 1572 * XXX Convert Direct Access device to RBC. 1573 * I've never seen FireWire DA devices which support READ_6. 1574 */ 1575 if (SID_TYPE(inq) == T_DIRECT) 1576 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1577 #endif 1578 /* fall through */ 1579 case T_RBC: 1580 /* 1581 * Override vendor/product/revision information. 1582 * Some devices sometimes return strange strings. 1583 */ 1584 #if 1 1585 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1586 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1587 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1588 #endif 1589 break; 1590 } 1591 /* 1592 * Force to enable/disable tagged queuing. 1593 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1594 */ 1595 if (sbp_tags > 0) 1596 inq->flags |= SID_CmdQue; 1597 else if (sbp_tags < 0) 1598 inq->flags &= ~SID_CmdQue; 1599 1600 } 1601 1602 static void 1603 sbp_recv1(struct fw_xfer *xfer) 1604 { 1605 struct fw_pkt *rfp; 1606 #if NEED_RESPONSE 1607 struct fw_pkt *sfp; 1608 #endif 1609 struct sbp_softc *sbp; 1610 struct sbp_dev *sdev; 1611 struct sbp_ocb *ocb; 1612 struct sbp_login_res *login_res = NULL; 1613 struct sbp_status *sbp_status; 1614 struct sbp_target *target; 1615 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1616 uint32_t addr; 1617 /* 1618 uint32_t *ld; 1619 ld = xfer->recv.buf; 1620 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1621 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1622 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1623 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1624 */ 1625 sbp = (struct sbp_softc *)xfer->sc; 1626 SBP_LOCK_ASSERT(sbp); 1627 if (xfer->resp != 0) { 1628 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1629 goto done0; 1630 } 1631 if (xfer->recv.payload == NULL) { 1632 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1633 goto done0; 1634 } 1635 rfp = &xfer->recv.hdr; 1636 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1637 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1638 goto done0; 1639 } 1640 sbp_status = (struct sbp_status *)xfer->recv.payload; 1641 addr = rfp->mode.wreqb.dest_lo; 1642 SBP_DEBUG(2) 1643 printf("received address 0x%x\n", addr); 1644 END_DEBUG 1645 t = SBP_ADDR2TRG(addr); 1646 if (t >= SBP_NUM_TARGETS) { 1647 device_printf(sbp->fd.dev, 1648 "sbp_recv1: invalid target %d\n", t); 1649 goto done0; 1650 } 1651 target = &sbp->targets[t]; 1652 l = SBP_ADDR2LUN(addr); 1653 if (l >= target->num_lun || target->luns[l] == NULL) { 1654 device_printf(sbp->fd.dev, 1655 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1656 goto done0; 1657 } 1658 sdev = target->luns[l]; 1659 1660 ocb = NULL; 1661 switch (sbp_status->src) { 1662 case 0: 1663 case 1: 1664 /* check mgm_ocb_cur first */ 1665 ocb = target->mgm_ocb_cur; 1666 if (ocb != NULL) { 1667 if (OCB_MATCH(ocb, sbp_status)) { 1668 callout_stop(&target->mgm_ocb_timeout); 1669 target->mgm_ocb_cur = NULL; 1670 break; 1671 } 1672 } 1673 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1674 if (ocb == NULL) { 1675 device_printf(sdev->target->sbp->fd.dev, 1676 "%s:%s No ocb(%x) on the queue\n", 1677 __func__,sdev->bustgtlun, 1678 ntohl(sbp_status->orb_lo)); 1679 } 1680 break; 1681 case 2: 1682 /* unsolicit */ 1683 device_printf(sdev->target->sbp->fd.dev, 1684 "%s:%s unsolicit status received\n", 1685 __func__, sdev->bustgtlun); 1686 break; 1687 default: 1688 device_printf(sdev->target->sbp->fd.dev, 1689 "%s:%s unknown sbp_status->src\n", 1690 __func__, sdev->bustgtlun); 1691 } 1692 1693 status_valid0 = (sbp_status->src < 2 1694 && sbp_status->resp == ORB_RES_CMPL 1695 && sbp_status->dead == 0); 1696 status_valid = (status_valid0 && sbp_status->status == 0); 1697 1698 if (!status_valid0 || debug > 2) { 1699 int status; 1700 SBP_DEBUG(0) 1701 device_printf(sdev->target->sbp->fd.dev, 1702 "%s:%s ORB status src:%x resp:%x dead:%x" 1703 " len:%x stat:%x orb:%x%08x\n", 1704 __func__, sdev->bustgtlun, 1705 sbp_status->src, sbp_status->resp, sbp_status->dead, 1706 sbp_status->len, sbp_status->status, 1707 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1708 END_DEBUG 1709 device_printf(sdev->target->sbp->fd.dev, 1710 "%s\n", sdev->bustgtlun); 1711 status = sbp_status->status; 1712 switch (sbp_status->resp) { 1713 case 0: 1714 if (status > MAX_ORB_STATUS0) 1715 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1716 else 1717 printf("%s\n", orb_status0[status]); 1718 break; 1719 case 1: 1720 printf("Obj: %s, Error: %s\n", 1721 orb_status1_object[(status >> 6) & 3], 1722 orb_status1_serial_bus_error[status & 0xf]); 1723 break; 1724 case 2: 1725 printf("Illegal request\n"); 1726 break; 1727 case 3: 1728 printf("Vendor dependent\n"); 1729 break; 1730 default: 1731 printf("unknown respose code %d\n", sbp_status->resp); 1732 } 1733 } 1734 1735 /* we have to reset the fetch agent if it's dead */ 1736 if (sbp_status->dead) { 1737 if (sdev->path) { 1738 xpt_freeze_devq(sdev->path, 1); 1739 sdev->freeze++; 1740 } 1741 reset_agent = 1; 1742 } 1743 1744 if (ocb == NULL) 1745 goto done; 1746 1747 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1748 case ORB_FMT_NOP: 1749 break; 1750 case ORB_FMT_VED: 1751 break; 1752 case ORB_FMT_STD: 1753 switch (ocb->flags) { 1754 case OCB_ACT_MGM: 1755 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1756 reset_agent = 0; 1757 switch (orb_fun) { 1758 case ORB_FUN_LGI: 1759 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1760 login_res = sdev->login; 1761 login_res->len = ntohs(login_res->len); 1762 login_res->id = ntohs(login_res->id); 1763 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1764 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1765 if (status_valid) { 1766 SBP_DEBUG(0) 1767 device_printf(sdev->target->sbp->fd.dev, 1768 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1769 __func__, sdev->bustgtlun, 1770 login_res->len, login_res->id, 1771 login_res->cmd_hi, login_res->cmd_lo, 1772 ntohs(login_res->recon_hold)); 1773 END_DEBUG 1774 sbp_busy_timeout(sdev); 1775 } else { 1776 /* forgot logout? */ 1777 device_printf(sdev->target->sbp->fd.dev, 1778 "%s:%s login failed\n", 1779 __func__, sdev->bustgtlun); 1780 sdev->status = SBP_DEV_RESET; 1781 } 1782 break; 1783 case ORB_FUN_RCN: 1784 login_res = sdev->login; 1785 if (status_valid) { 1786 SBP_DEBUG(0) 1787 device_printf(sdev->target->sbp->fd.dev, 1788 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1789 __func__, sdev->bustgtlun, 1790 login_res->len, login_res->id, 1791 login_res->cmd_hi, login_res->cmd_lo); 1792 END_DEBUG 1793 if (sdev->status == SBP_DEV_ATTACHED) 1794 sbp_scan_dev(sdev); 1795 else 1796 sbp_agent_reset(sdev); 1797 } else { 1798 /* reconnection hold time exceed? */ 1799 SBP_DEBUG(0) 1800 device_printf(sdev->target->sbp->fd.dev, 1801 "%s:%s reconnect failed\n", 1802 __func__, sdev->bustgtlun); 1803 END_DEBUG 1804 sbp_login(sdev); 1805 } 1806 break; 1807 case ORB_FUN_LGO: 1808 sdev->status = SBP_DEV_RESET; 1809 break; 1810 case ORB_FUN_RST: 1811 sbp_busy_timeout(sdev); 1812 break; 1813 case ORB_FUN_LUR: 1814 case ORB_FUN_ATA: 1815 case ORB_FUN_ATS: 1816 sbp_agent_reset(sdev); 1817 break; 1818 default: 1819 device_printf(sdev->target->sbp->fd.dev, 1820 "%s:%s unknown function %d\n", 1821 __func__, sdev->bustgtlun, orb_fun); 1822 break; 1823 } 1824 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1825 break; 1826 case OCB_ACT_CMD: 1827 sdev->timeout = 0; 1828 if (ocb->ccb != NULL) { 1829 union ccb *ccb; 1830 1831 ccb = ocb->ccb; 1832 if (sbp_status->len > 1) { 1833 sbp_scsi_status(sbp_status, ocb); 1834 } else { 1835 if (sbp_status->resp != ORB_RES_CMPL) { 1836 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1837 } else { 1838 ccb->ccb_h.status = CAM_REQ_CMP; 1839 } 1840 } 1841 /* fix up inq data */ 1842 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1843 sbp_fix_inq_data(ocb); 1844 xpt_done(ccb); 1845 } 1846 break; 1847 default: 1848 break; 1849 } 1850 } 1851 1852 if (!use_doorbell) 1853 sbp_free_ocb(sdev, ocb); 1854 done: 1855 if (reset_agent) 1856 sbp_agent_reset(sdev); 1857 1858 done0: 1859 xfer->recv.pay_len = SBP_RECV_LEN; 1860 /* The received packet is usually small enough to be stored within 1861 * the buffer. In that case, the controller return ack_complete and 1862 * no respose is necessary. 1863 * 1864 * XXX fwohci.c and firewire.c should inform event_code such as 1865 * ack_complete or ack_pending to upper driver. 1866 */ 1867 #if NEED_RESPONSE 1868 xfer->send.off = 0; 1869 sfp = (struct fw_pkt *)xfer->send.buf; 1870 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1871 xfer->dst = sfp->mode.wres.dst; 1872 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1873 xfer->hand = sbp_loginres_callback; 1874 1875 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1876 sfp->mode.wres.tcode = FWTCODE_WRES; 1877 sfp->mode.wres.rtcode = 0; 1878 sfp->mode.wres.pri = 0; 1879 1880 fw_asyreq(xfer->fc, -1, xfer); 1881 #else 1882 /* recycle */ 1883 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1884 #endif 1885 } 1886 1887 static void 1888 sbp_recv(struct fw_xfer *xfer) 1889 { 1890 struct sbp_softc *sbp; 1891 1892 sbp = (struct sbp_softc *)xfer->sc; 1893 SBP_LOCK(sbp); 1894 sbp_recv1(xfer); 1895 SBP_UNLOCK(sbp); 1896 } 1897 /* 1898 * sbp_attach() 1899 */ 1900 static int 1901 sbp_attach(device_t dev) 1902 { 1903 struct sbp_softc *sbp; 1904 struct cam_devq *devq; 1905 struct firewire_comm *fc; 1906 int i, error; 1907 1908 if (DFLTPHYS > SBP_MAXPHYS) 1909 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1910 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1911 SBP_MAXPHYS / 1024); 1912 1913 if (!firewire_phydma_enable) 1914 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1915 "for SBP over FireWire.\n"); 1916 SBP_DEBUG(0) 1917 printf("sbp_attach (cold=%d)\n", cold); 1918 END_DEBUG 1919 1920 if (cold) 1921 sbp_cold++; 1922 sbp = device_get_softc(dev); 1923 sbp->fd.dev = dev; 1924 sbp->fd.fc = fc = device_get_ivars(dev); 1925 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1926 1927 if (max_speed < 0) 1928 max_speed = fc->speed; 1929 1930 error = bus_dma_tag_create(/*parent*/fc->dmat, 1931 /* XXX shoud be 4 for sane backend? */ 1932 /*alignment*/1, 1933 /*boundary*/0, 1934 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1935 /*highaddr*/BUS_SPACE_MAXADDR, 1936 /*filter*/NULL, /*filterarg*/NULL, 1937 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1938 /*maxsegsz*/SBP_SEG_MAX, 1939 /*flags*/BUS_DMA_ALLOCNOW, 1940 /*lockfunc*/busdma_lock_mutex, 1941 /*lockarg*/&sbp->mtx, 1942 &sbp->dmat); 1943 if (error != 0) { 1944 printf("sbp_attach: Could not allocate DMA tag " 1945 "- error %d\n", error); 1946 return (ENOMEM); 1947 } 1948 1949 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1950 if (devq == NULL) 1951 return (ENXIO); 1952 1953 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1954 sbp->targets[i].fwdev = NULL; 1955 sbp->targets[i].luns = NULL; 1956 sbp->targets[i].sbp = sbp; 1957 } 1958 1959 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1960 device_get_unit(dev), 1961 &sbp->mtx, 1962 /*untagged*/ 1, 1963 /*tagged*/ SBP_QUEUE_LEN - 1, 1964 devq); 1965 1966 if (sbp->sim == NULL) { 1967 cam_simq_free(devq); 1968 return (ENXIO); 1969 } 1970 1971 SBP_LOCK(sbp); 1972 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1973 goto fail; 1974 1975 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1976 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1977 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1978 goto fail; 1979 } 1980 SBP_UNLOCK(sbp); 1981 1982 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1983 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1984 sbp->fwb.end = sbp->fwb.start + 0xffff; 1985 /* pre-allocate xfer */ 1986 STAILQ_INIT(&sbp->fwb.xferlist); 1987 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1988 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1989 fc, (void *)sbp, sbp_recv); 1990 1991 fw_bindadd(fc, &sbp->fwb); 1992 1993 sbp->fd.post_busreset = sbp_post_busreset; 1994 sbp->fd.post_explore = sbp_post_explore; 1995 1996 if (fc->status != -1) { 1997 sbp_post_busreset(sbp); 1998 sbp_post_explore(sbp); 1999 } 2000 SBP_LOCK(sbp); 2001 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2002 SBP_UNLOCK(sbp); 2003 2004 return (0); 2005 fail: 2006 SBP_UNLOCK(sbp); 2007 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2008 return (ENXIO); 2009 } 2010 2011 static int 2012 sbp_logout_all(struct sbp_softc *sbp) 2013 { 2014 struct sbp_target *target; 2015 struct sbp_dev *sdev; 2016 int i, j; 2017 2018 SBP_DEBUG(0) 2019 printf("sbp_logout_all\n"); 2020 END_DEBUG 2021 SBP_LOCK_ASSERT(sbp); 2022 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2023 target = &sbp->targets[i]; 2024 if (target->luns == NULL) 2025 continue; 2026 for (j = 0; j < target->num_lun; j++) { 2027 sdev = target->luns[j]; 2028 if (sdev == NULL) 2029 continue; 2030 callout_stop(&sdev->login_callout); 2031 if (sdev->status >= SBP_DEV_TOATTACH && 2032 sdev->status <= SBP_DEV_ATTACHED) 2033 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2034 } 2035 } 2036 2037 return 0; 2038 } 2039 2040 static int 2041 sbp_shutdown(device_t dev) 2042 { 2043 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2044 2045 SBP_LOCK(sbp); 2046 sbp_logout_all(sbp); 2047 SBP_UNLOCK(sbp); 2048 return (0); 2049 } 2050 2051 static void 2052 sbp_free_sdev(struct sbp_dev *sdev) 2053 { 2054 struct sbp_softc *sbp; 2055 int i; 2056 2057 if (sdev == NULL) 2058 return; 2059 sbp = sdev->target->sbp; 2060 SBP_UNLOCK(sbp); 2061 callout_drain(&sdev->login_callout); 2062 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2063 callout_drain(&sdev->ocb[i].timer); 2064 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2065 } 2066 fwdma_free(sbp->fd.fc, &sdev->dma); 2067 free(sdev, M_SBP); 2068 SBP_LOCK(sbp); 2069 } 2070 2071 static void 2072 sbp_free_target(struct sbp_target *target) 2073 { 2074 struct sbp_softc *sbp; 2075 struct fw_xfer *xfer, *next; 2076 int i; 2077 2078 if (target->luns == NULL) 2079 return; 2080 sbp = target->sbp; 2081 SBP_LOCK_ASSERT(sbp); 2082 SBP_UNLOCK(sbp); 2083 callout_drain(&target->mgm_ocb_timeout); 2084 callout_drain(&target->scan_callout); 2085 SBP_LOCK(sbp); 2086 for (i = 0; i < target->num_lun; i++) 2087 sbp_free_sdev(target->luns[i]); 2088 2089 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2090 fw_xfer_free_buf(xfer); 2091 } 2092 STAILQ_INIT(&target->xferlist); 2093 free(target->luns, M_SBP); 2094 target->num_lun = 0; 2095 target->luns = NULL; 2096 target->fwdev = NULL; 2097 } 2098 2099 static int 2100 sbp_detach(device_t dev) 2101 { 2102 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2103 struct firewire_comm *fc = sbp->fd.fc; 2104 int i; 2105 2106 SBP_DEBUG(0) 2107 printf("sbp_detach\n"); 2108 END_DEBUG 2109 2110 SBP_LOCK(sbp); 2111 for (i = 0; i < SBP_NUM_TARGETS; i++) 2112 sbp_cam_detach_target(&sbp->targets[i]); 2113 2114 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2115 xpt_free_path(sbp->path); 2116 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2117 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2118 2119 sbp_logout_all(sbp); 2120 SBP_UNLOCK(sbp); 2121 2122 /* XXX wait for logout completion */ 2123 pause("sbpdtc", hz/2); 2124 2125 SBP_LOCK(sbp); 2126 for (i = 0; i < SBP_NUM_TARGETS; i++) 2127 sbp_free_target(&sbp->targets[i]); 2128 SBP_UNLOCK(sbp); 2129 2130 fw_bindremove(fc, &sbp->fwb); 2131 fw_xferlist_remove(&sbp->fwb.xferlist); 2132 2133 bus_dma_tag_destroy(sbp->dmat); 2134 mtx_destroy(&sbp->mtx); 2135 2136 return (0); 2137 } 2138 2139 static void 2140 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2141 { 2142 if (sdev == NULL) 2143 return; 2144 if (sdev->status == SBP_DEV_DEAD) 2145 return; 2146 if (sdev->status == SBP_DEV_RESET) 2147 return; 2148 SBP_LOCK_ASSERT(sdev->target->sbp); 2149 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2150 if (sdev->path) { 2151 xpt_release_devq(sdev->path, 2152 sdev->freeze, TRUE); 2153 sdev->freeze = 0; 2154 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2155 xpt_free_path(sdev->path); 2156 sdev->path = NULL; 2157 } 2158 } 2159 2160 static void 2161 sbp_cam_detach_target(struct sbp_target *target) 2162 { 2163 int i; 2164 2165 SBP_LOCK_ASSERT(target->sbp); 2166 if (target->luns != NULL) { 2167 SBP_DEBUG(0) 2168 printf("sbp_detach_target %d\n", target->target_id); 2169 END_DEBUG 2170 callout_stop(&target->scan_callout); 2171 for (i = 0; i < target->num_lun; i++) 2172 sbp_cam_detach_sdev(target->luns[i]); 2173 } 2174 } 2175 2176 static void 2177 sbp_target_reset(struct sbp_dev *sdev, int method) 2178 { 2179 int i; 2180 struct sbp_target *target = sdev->target; 2181 struct sbp_dev *tsdev; 2182 2183 SBP_LOCK_ASSERT(target->sbp); 2184 for (i = 0; i < target->num_lun; i++) { 2185 tsdev = target->luns[i]; 2186 if (tsdev == NULL) 2187 continue; 2188 if (tsdev->status == SBP_DEV_DEAD) 2189 continue; 2190 if (tsdev->status == SBP_DEV_RESET) 2191 continue; 2192 xpt_freeze_devq(tsdev->path, 1); 2193 tsdev->freeze++; 2194 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2195 if (method == 2) 2196 tsdev->status = SBP_DEV_LOGIN; 2197 } 2198 switch (method) { 2199 case 1: 2200 printf("target reset\n"); 2201 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2202 break; 2203 case 2: 2204 printf("reset start\n"); 2205 sbp_reset_start(sdev); 2206 break; 2207 } 2208 2209 } 2210 2211 static void 2212 sbp_mgm_timeout(void *arg) 2213 { 2214 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2215 struct sbp_dev *sdev = ocb->sdev; 2216 struct sbp_target *target = sdev->target; 2217 2218 SBP_LOCK_ASSERT(target->sbp); 2219 device_printf(sdev->target->sbp->fd.dev, 2220 "%s:%s request timeout(mgm orb:0x%08x)\n", 2221 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2222 target->mgm_ocb_cur = NULL; 2223 sbp_free_ocb(sdev, ocb); 2224 #if 0 2225 /* XXX */ 2226 printf("run next request\n"); 2227 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2228 #endif 2229 device_printf(sdev->target->sbp->fd.dev, 2230 "%s:%s reset start\n", 2231 __func__, sdev->bustgtlun); 2232 sbp_reset_start(sdev); 2233 } 2234 2235 static void 2236 sbp_timeout(void *arg) 2237 { 2238 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2239 struct sbp_dev *sdev = ocb->sdev; 2240 2241 device_printf(sdev->target->sbp->fd.dev, 2242 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2243 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2244 2245 SBP_LOCK_ASSERT(sdev->target->sbp); 2246 sdev->timeout++; 2247 switch (sdev->timeout) { 2248 case 1: 2249 printf("agent reset\n"); 2250 xpt_freeze_devq(sdev->path, 1); 2251 sdev->freeze++; 2252 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2253 sbp_agent_reset(sdev); 2254 break; 2255 case 2: 2256 case 3: 2257 sbp_target_reset(sdev, sdev->timeout - 1); 2258 break; 2259 #if 0 2260 default: 2261 /* XXX give up */ 2262 sbp_cam_detach_target(target); 2263 if (target->luns != NULL) 2264 free(target->luns, M_SBP); 2265 target->num_lun = 0; 2266 target->luns = NULL; 2267 target->fwdev = NULL; 2268 #endif 2269 } 2270 } 2271 2272 static void 2273 sbp_action(struct cam_sim *sim, union ccb *ccb) 2274 { 2275 2276 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2277 struct sbp_target *target = NULL; 2278 struct sbp_dev *sdev = NULL; 2279 2280 if (sbp != NULL) 2281 SBP_LOCK_ASSERT(sbp); 2282 /* target:lun -> sdev mapping */ 2283 if (sbp != NULL 2284 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2285 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2286 target = &sbp->targets[ccb->ccb_h.target_id]; 2287 if (target->fwdev != NULL 2288 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2289 && ccb->ccb_h.target_lun < target->num_lun) { 2290 sdev = target->luns[ccb->ccb_h.target_lun]; 2291 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2292 sdev->status != SBP_DEV_PROBE) 2293 sdev = NULL; 2294 } 2295 } 2296 2297 SBP_DEBUG(1) 2298 if (sdev == NULL) 2299 printf("invalid target %d lun %jx\n", 2300 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2301 END_DEBUG 2302 2303 switch (ccb->ccb_h.func_code) { 2304 case XPT_SCSI_IO: 2305 case XPT_RESET_DEV: 2306 case XPT_GET_TRAN_SETTINGS: 2307 case XPT_SET_TRAN_SETTINGS: 2308 case XPT_CALC_GEOMETRY: 2309 if (sdev == NULL) { 2310 SBP_DEBUG(1) 2311 printf("%s:%d:%jx:func_code 0x%04x: " 2312 "Invalid target (target needed)\n", 2313 device_get_nameunit(sbp->fd.dev), 2314 ccb->ccb_h.target_id, 2315 (uintmax_t)ccb->ccb_h.target_lun, 2316 ccb->ccb_h.func_code); 2317 END_DEBUG 2318 2319 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2320 xpt_done(ccb); 2321 return; 2322 } 2323 break; 2324 case XPT_PATH_INQ: 2325 case XPT_NOOP: 2326 /* The opcodes sometimes aimed at a target (sc is valid), 2327 * sometimes aimed at the SIM (sc is invalid and target is 2328 * CAM_TARGET_WILDCARD) 2329 */ 2330 if (sbp == NULL && 2331 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2332 SBP_DEBUG(0) 2333 printf("%s:%d:%jx func_code 0x%04x: " 2334 "Invalid target (no wildcard)\n", 2335 device_get_nameunit(sbp->fd.dev), 2336 ccb->ccb_h.target_id, 2337 (uintmax_t)ccb->ccb_h.target_lun, 2338 ccb->ccb_h.func_code); 2339 END_DEBUG 2340 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2341 xpt_done(ccb); 2342 return; 2343 } 2344 break; 2345 default: 2346 /* XXX Hm, we should check the input parameters */ 2347 break; 2348 } 2349 2350 switch (ccb->ccb_h.func_code) { 2351 case XPT_SCSI_IO: 2352 { 2353 struct ccb_scsiio *csio; 2354 struct sbp_ocb *ocb; 2355 int speed; 2356 void *cdb; 2357 2358 csio = &ccb->csio; 2359 mtx_assert(sim->mtx, MA_OWNED); 2360 2361 SBP_DEBUG(2) 2362 printf("%s:%d:%jx XPT_SCSI_IO: " 2363 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2364 ", flags: 0x%02x, " 2365 "%db cmd/%db data/%db sense\n", 2366 device_get_nameunit(sbp->fd.dev), 2367 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2368 csio->cdb_io.cdb_bytes[0], 2369 csio->cdb_io.cdb_bytes[1], 2370 csio->cdb_io.cdb_bytes[2], 2371 csio->cdb_io.cdb_bytes[3], 2372 csio->cdb_io.cdb_bytes[4], 2373 csio->cdb_io.cdb_bytes[5], 2374 csio->cdb_io.cdb_bytes[6], 2375 csio->cdb_io.cdb_bytes[7], 2376 csio->cdb_io.cdb_bytes[8], 2377 csio->cdb_io.cdb_bytes[9], 2378 ccb->ccb_h.flags & CAM_DIR_MASK, 2379 csio->cdb_len, csio->dxfer_len, 2380 csio->sense_len); 2381 END_DEBUG 2382 if (sdev == NULL) { 2383 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2384 xpt_done(ccb); 2385 return; 2386 } 2387 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { 2388 ccb->ccb_h.status = CAM_REQ_INVALID; 2389 xpt_done(ccb); 2390 return; 2391 } 2392 #if 0 2393 /* if we are in probe stage, pass only probe commands */ 2394 if (sdev->status == SBP_DEV_PROBE) { 2395 char *name; 2396 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2397 printf("probe stage, periph name: %s\n", name); 2398 if (strcmp(name, "probe") != 0) { 2399 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2400 xpt_done(ccb); 2401 return; 2402 } 2403 } 2404 #endif 2405 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2406 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2407 if (sdev->freeze == 0) { 2408 xpt_freeze_devq(sdev->path, 1); 2409 sdev->freeze++; 2410 } 2411 xpt_done(ccb); 2412 return; 2413 } 2414 2415 ocb->flags = OCB_ACT_CMD; 2416 ocb->sdev = sdev; 2417 ocb->ccb = ccb; 2418 ccb->ccb_h.ccb_sdev_ptr = sdev; 2419 ocb->orb[0] = htonl(1U << 31); 2420 ocb->orb[1] = 0; 2421 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2422 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2423 speed = min(target->fwdev->speed, max_speed); 2424 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2425 | ORB_CMD_MAXP(speed + 7)); 2426 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2427 ocb->orb[4] |= htonl(ORB_CMD_IN); 2428 } 2429 2430 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2431 cdb = (void *)csio->cdb_io.cdb_ptr; 2432 else 2433 cdb = (void *)&csio->cdb_io.cdb_bytes; 2434 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2435 /* 2436 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2437 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2438 */ 2439 if (ccb->csio.dxfer_len > 0) { 2440 int error; 2441 2442 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2443 /*dma map*/ocb->dmamap, 2444 ccb, 2445 sbp_execute_ocb, 2446 ocb, 2447 /*flags*/0); 2448 if (error) 2449 printf("sbp: bus_dmamap_load error %d\n", error); 2450 } else 2451 sbp_execute_ocb(ocb, NULL, 0, 0); 2452 break; 2453 } 2454 case XPT_CALC_GEOMETRY: 2455 { 2456 struct ccb_calc_geometry *ccg; 2457 2458 ccg = &ccb->ccg; 2459 if (ccg->block_size == 0) { 2460 printf("sbp_action: block_size is 0.\n"); 2461 ccb->ccb_h.status = CAM_REQ_INVALID; 2462 xpt_done(ccb); 2463 break; 2464 } 2465 SBP_DEBUG(1) 2466 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2467 "Volume size = %jd\n", 2468 device_get_nameunit(sbp->fd.dev), 2469 cam_sim_path(sbp->sim), 2470 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2471 (uintmax_t)ccg->volume_size); 2472 END_DEBUG 2473 2474 cam_calc_geometry(ccg, /*extended*/1); 2475 xpt_done(ccb); 2476 break; 2477 } 2478 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2479 { 2480 2481 SBP_DEBUG(1) 2482 printf("%s:%d:XPT_RESET_BUS: \n", 2483 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2484 END_DEBUG 2485 2486 ccb->ccb_h.status = CAM_REQ_INVALID; 2487 xpt_done(ccb); 2488 break; 2489 } 2490 case XPT_PATH_INQ: /* Path routing inquiry */ 2491 { 2492 struct ccb_pathinq *cpi = &ccb->cpi; 2493 2494 SBP_DEBUG(1) 2495 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2496 device_get_nameunit(sbp->fd.dev), 2497 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2498 END_DEBUG 2499 cpi->version_num = 1; /* XXX??? */ 2500 cpi->hba_inquiry = PI_TAG_ABLE; 2501 cpi->target_sprt = 0; 2502 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2503 cpi->hba_eng_cnt = 0; 2504 cpi->max_target = SBP_NUM_TARGETS - 1; 2505 cpi->max_lun = SBP_NUM_LUNS - 1; 2506 cpi->initiator_id = SBP_INITIATOR; 2507 cpi->bus_id = sim->bus_id; 2508 cpi->base_transfer_speed = 400 * 1000 / 8; 2509 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2510 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2511 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2512 cpi->unit_number = sim->unit_number; 2513 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2514 cpi->transport_version = 2; 2515 cpi->protocol = PROTO_SCSI; 2516 cpi->protocol_version = SCSI_REV_2; 2517 2518 cpi->ccb_h.status = CAM_REQ_CMP; 2519 xpt_done(ccb); 2520 break; 2521 } 2522 case XPT_GET_TRAN_SETTINGS: 2523 { 2524 struct ccb_trans_settings *cts = &ccb->cts; 2525 struct ccb_trans_settings_scsi *scsi = 2526 &cts->proto_specific.scsi; 2527 struct ccb_trans_settings_spi *spi = 2528 &cts->xport_specific.spi; 2529 2530 cts->protocol = PROTO_SCSI; 2531 cts->protocol_version = SCSI_REV_2; 2532 cts->transport = XPORT_SPI; /* should have a FireWire */ 2533 cts->transport_version = 2; 2534 spi->valid = CTS_SPI_VALID_DISC; 2535 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2536 scsi->valid = CTS_SCSI_VALID_TQ; 2537 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2538 SBP_DEBUG(1) 2539 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2540 device_get_nameunit(sbp->fd.dev), 2541 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2542 END_DEBUG 2543 cts->ccb_h.status = CAM_REQ_CMP; 2544 xpt_done(ccb); 2545 break; 2546 } 2547 case XPT_ABORT: 2548 ccb->ccb_h.status = CAM_UA_ABORT; 2549 xpt_done(ccb); 2550 break; 2551 case XPT_SET_TRAN_SETTINGS: 2552 /* XXX */ 2553 default: 2554 ccb->ccb_h.status = CAM_REQ_INVALID; 2555 xpt_done(ccb); 2556 break; 2557 } 2558 return; 2559 } 2560 2561 static void 2562 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2563 { 2564 int i; 2565 struct sbp_ocb *ocb; 2566 struct sbp_ocb *prev; 2567 bus_dma_segment_t *s; 2568 2569 if (error) 2570 printf("sbp_execute_ocb: error=%d\n", error); 2571 2572 ocb = (struct sbp_ocb *)arg; 2573 2574 SBP_DEBUG(2) 2575 printf("sbp_execute_ocb: seg %d", seg); 2576 for (i = 0; i < seg; i++) 2577 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2578 (uintmax_t)segments[i].ds_len); 2579 printf("\n"); 2580 END_DEBUG 2581 2582 if (seg == 1) { 2583 /* direct pointer */ 2584 s = &segments[0]; 2585 if (s->ds_len > SBP_SEG_MAX) 2586 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2587 ocb->orb[3] = htonl(s->ds_addr); 2588 ocb->orb[4] |= htonl(s->ds_len); 2589 } else if (seg > 1) { 2590 /* page table */ 2591 for (i = 0; i < seg; i++) { 2592 s = &segments[i]; 2593 SBP_DEBUG(0) 2594 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2595 if (s->ds_len < 16) 2596 printf("sbp_execute_ocb: warning, " 2597 "segment length(%zd) is less than 16." 2598 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2599 END_DEBUG 2600 if (s->ds_len > SBP_SEG_MAX) 2601 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2602 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2603 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2604 } 2605 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2606 } 2607 2608 if (seg > 0) 2609 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2610 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2611 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2612 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2613 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2614 if (use_doorbell) { 2615 if (prev == NULL) { 2616 if (ocb->sdev->last_ocb != NULL) 2617 sbp_doorbell(ocb->sdev); 2618 else 2619 sbp_orb_pointer(ocb->sdev, ocb); 2620 } 2621 } else { 2622 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2623 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2624 sbp_orb_pointer(ocb->sdev, ocb); 2625 } 2626 } 2627 } 2628 2629 static void 2630 sbp_poll(struct cam_sim *sim) 2631 { 2632 struct sbp_softc *sbp; 2633 struct firewire_comm *fc; 2634 2635 sbp = (struct sbp_softc *)sim->softc; 2636 fc = sbp->fd.fc; 2637 2638 fc->poll(fc, 0, -1); 2639 2640 return; 2641 } 2642 2643 static struct sbp_ocb * 2644 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2645 { 2646 struct sbp_ocb *ocb; 2647 struct sbp_ocb *next; 2648 int order = 0; 2649 2650 SBP_DEBUG(1) 2651 device_printf(sdev->target->sbp->fd.dev, 2652 "%s:%s 0x%08x src %d\n", 2653 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2654 END_DEBUG 2655 SBP_LOCK_ASSERT(sdev->target->sbp); 2656 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2657 if (OCB_MATCH(ocb, sbp_status)) { 2658 /* found */ 2659 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2660 if (ocb->ccb != NULL) 2661 callout_stop(&ocb->timer); 2662 if (ntohl(ocb->orb[4]) & 0xffff) { 2663 bus_dmamap_sync(sdev->target->sbp->dmat, 2664 ocb->dmamap, 2665 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2666 BUS_DMASYNC_POSTREAD : 2667 BUS_DMASYNC_POSTWRITE); 2668 bus_dmamap_unload(sdev->target->sbp->dmat, 2669 ocb->dmamap); 2670 } 2671 if (!use_doorbell) { 2672 if (sbp_status->src == SRC_NO_NEXT) { 2673 if (next != NULL) 2674 sbp_orb_pointer(sdev, next); 2675 else if (order > 0) { 2676 /* 2677 * Unordered execution 2678 * We need to send pointer for 2679 * next ORB 2680 */ 2681 sdev->flags |= ORB_LINK_DEAD; 2682 } 2683 } 2684 } else { 2685 /* 2686 * XXX this is not correct for unordered 2687 * execution. 2688 */ 2689 if (sdev->last_ocb != NULL) { 2690 sbp_free_ocb(sdev, sdev->last_ocb); 2691 } 2692 sdev->last_ocb = ocb; 2693 if (next != NULL && 2694 sbp_status->src == SRC_NO_NEXT) 2695 sbp_doorbell(sdev); 2696 } 2697 break; 2698 } else 2699 order++; 2700 } 2701 SBP_DEBUG(0) 2702 if (ocb && order > 0) { 2703 device_printf(sdev->target->sbp->fd.dev, 2704 "%s:%s unordered execution order:%d\n", 2705 __func__, sdev->bustgtlun, order); 2706 } 2707 END_DEBUG 2708 return (ocb); 2709 } 2710 2711 static struct sbp_ocb * 2712 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2713 { 2714 struct sbp_ocb *prev, *prev2; 2715 2716 SBP_LOCK_ASSERT(sdev->target->sbp); 2717 SBP_DEBUG(1) 2718 device_printf(sdev->target->sbp->fd.dev, 2719 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2720 END_DEBUG 2721 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2722 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2723 2724 if (ocb->ccb != NULL) { 2725 callout_reset_sbt(&ocb->timer, 2726 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2727 ocb, 0); 2728 } 2729 2730 if (use_doorbell && prev == NULL) 2731 prev2 = sdev->last_ocb; 2732 2733 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2734 SBP_DEBUG(1) 2735 printf("linking chain 0x%jx -> 0x%jx\n", 2736 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2737 END_DEBUG 2738 /* 2739 * Suppress compiler optimization so that orb[1] must be written first. 2740 * XXX We may need an explicit memory barrier for other architectures 2741 * other than i386/amd64. 2742 */ 2743 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2744 *(volatile uint32_t *)&prev2->orb[0] = 0; 2745 } 2746 2747 return prev; 2748 } 2749 2750 static struct sbp_ocb * 2751 sbp_get_ocb(struct sbp_dev *sdev) 2752 { 2753 struct sbp_ocb *ocb; 2754 2755 SBP_LOCK_ASSERT(sdev->target->sbp); 2756 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2757 if (ocb == NULL) { 2758 sdev->flags |= ORB_SHORTAGE; 2759 printf("ocb shortage!!!\n"); 2760 return NULL; 2761 } 2762 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2763 ocb->ccb = NULL; 2764 return (ocb); 2765 } 2766 2767 static void 2768 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2769 { 2770 ocb->flags = 0; 2771 ocb->ccb = NULL; 2772 2773 SBP_LOCK_ASSERT(sdev->target->sbp); 2774 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2775 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2776 int count; 2777 2778 sdev->flags &= ~ORB_SHORTAGE; 2779 count = sdev->freeze; 2780 sdev->freeze = 0; 2781 xpt_release_devq(sdev->path, count, TRUE); 2782 } 2783 } 2784 2785 static void 2786 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2787 { 2788 struct sbp_dev *sdev; 2789 2790 sdev = ocb->sdev; 2791 SBP_LOCK_ASSERT(sdev->target->sbp); 2792 SBP_DEBUG(0) 2793 device_printf(sdev->target->sbp->fd.dev, 2794 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2795 END_DEBUG 2796 SBP_DEBUG(1) 2797 if (ocb->ccb != NULL) 2798 sbp_print_scsi_cmd(ocb); 2799 END_DEBUG 2800 if (ntohl(ocb->orb[4]) & 0xffff) { 2801 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2802 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2803 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2804 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2805 } 2806 if (ocb->ccb != NULL) { 2807 callout_stop(&ocb->timer); 2808 ocb->ccb->ccb_h.status = status; 2809 xpt_done(ocb->ccb); 2810 } 2811 sbp_free_ocb(sdev, ocb); 2812 } 2813 2814 static void 2815 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2816 { 2817 struct sbp_ocb *ocb, *next; 2818 STAILQ_HEAD(, sbp_ocb) temp; 2819 2820 STAILQ_INIT(&temp); 2821 SBP_LOCK_ASSERT(sdev->target->sbp); 2822 STAILQ_CONCAT(&temp, &sdev->ocbs); 2823 STAILQ_INIT(&sdev->ocbs); 2824 2825 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2826 sbp_abort_ocb(ocb, status); 2827 } 2828 if (sdev->last_ocb != NULL) { 2829 sbp_free_ocb(sdev, sdev->last_ocb); 2830 sdev->last_ocb = NULL; 2831 } 2832 } 2833 2834 static devclass_t sbp_devclass; 2835 2836 static device_method_t sbp_methods[] = { 2837 /* device interface */ 2838 DEVMETHOD(device_identify, sbp_identify), 2839 DEVMETHOD(device_probe, sbp_probe), 2840 DEVMETHOD(device_attach, sbp_attach), 2841 DEVMETHOD(device_detach, sbp_detach), 2842 DEVMETHOD(device_shutdown, sbp_shutdown), 2843 2844 { 0, 0 } 2845 }; 2846 2847 static driver_t sbp_driver = { 2848 "sbp", 2849 sbp_methods, 2850 sizeof(struct sbp_softc), 2851 }; 2852 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2853 MODULE_VERSION(sbp, 1); 2854 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2855 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2856