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 (128 * 1024) 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; 938 939 sdev = (struct sbp_dev *)xfer->sc; 940 941 SBP_DEBUG(1) 942 device_printf(sdev->target->sbp->fd.dev, 943 "%s:%s\n", __func__, sdev->bustgtlun); 944 END_DEBUG 945 SBP_LOCK(sdev->target->sbp); 946 sbp_xfer_free(xfer); 947 SBP_UNLOCK(sdev->target->sbp); 948 } 949 950 static struct sbp_dev * 951 sbp_next_dev(struct sbp_target *target, int lun) 952 { 953 struct sbp_dev **sdevp; 954 int i; 955 956 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 957 i++, sdevp++) 958 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 959 return (*sdevp); 960 return (NULL); 961 } 962 963 #define SCAN_PRI 1 964 static void 965 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 966 { 967 struct sbp_softc *sbp; 968 struct sbp_target *target; 969 struct sbp_dev *sdev; 970 971 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 972 target = sdev->target; 973 sbp = target->sbp; 974 SBP_LOCK(sbp); 975 SBP_DEBUG(0) 976 device_printf(sbp->fd.dev, 977 "%s:%s\n", __func__, sdev->bustgtlun); 978 END_DEBUG 979 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 980 sdev->status = SBP_DEV_ATTACHED; 981 } else { 982 device_printf(sbp->fd.dev, 983 "%s:%s failed\n", __func__, sdev->bustgtlun); 984 } 985 sdev = sbp_next_dev(target, sdev->lun_id + 1); 986 if (sdev == NULL) { 987 SBP_UNLOCK(sbp); 988 xpt_free_ccb(ccb); 989 return; 990 } 991 /* reuse ccb */ 992 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 993 ccb->ccb_h.ccb_sdev_ptr = sdev; 994 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 995 SBP_UNLOCK(sbp); 996 997 xpt_action(ccb); 998 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 999 sdev->freeze = 1; 1000 } 1001 1002 static void 1003 sbp_cam_scan_target(void *arg) 1004 { 1005 struct sbp_target *target = (struct sbp_target *)arg; 1006 struct sbp_dev *sdev; 1007 union ccb *ccb; 1008 1009 SBP_LOCK_ASSERT(target->sbp); 1010 sdev = sbp_next_dev(target, 0); 1011 if (sdev == NULL) { 1012 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1013 target->target_id); 1014 return; 1015 } 1016 SBP_DEBUG(0) 1017 device_printf(sdev->target->sbp->fd.dev, 1018 "%s:%s\n", __func__, sdev->bustgtlun); 1019 END_DEBUG 1020 ccb = xpt_alloc_ccb_nowait(); 1021 if (ccb == NULL) { 1022 printf("sbp_cam_scan_target: xpt_alloc_ccb_nowait() failed\n"); 1023 return; 1024 } 1025 SBP_UNLOCK(target->sbp); 1026 1027 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1028 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1029 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1030 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1031 ccb->crcn.flags = CAM_FLAG_NONE; 1032 ccb->ccb_h.ccb_sdev_ptr = sdev; 1033 1034 /* The scan is in progress now. */ 1035 xpt_action(ccb); 1036 1037 SBP_LOCK(target->sbp); 1038 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1039 sdev->freeze = 1; 1040 } 1041 1042 static __inline void 1043 sbp_scan_dev(struct sbp_dev *sdev) 1044 { 1045 sdev->status = SBP_DEV_PROBE; 1046 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1047 sbp_cam_scan_target, (void *)sdev->target, 0); 1048 } 1049 1050 static void 1051 sbp_do_attach(struct fw_xfer *xfer) 1052 { 1053 struct sbp_dev *sdev; 1054 struct sbp_target *target; 1055 struct sbp_softc *sbp; 1056 1057 sdev = (struct sbp_dev *)xfer->sc; 1058 target = sdev->target; 1059 sbp = target->sbp; 1060 SBP_LOCK(sbp); 1061 SBP_DEBUG(0) 1062 device_printf(sdev->target->sbp->fd.dev, 1063 "%s:%s\n", __func__, sdev->bustgtlun); 1064 END_DEBUG 1065 sbp_xfer_free(xfer); 1066 1067 if (sdev->path == NULL) 1068 xpt_create_path(&sdev->path, NULL, 1069 cam_sim_path(target->sbp->sim), 1070 target->target_id, sdev->lun_id); 1071 1072 /* 1073 * Let CAM scan the bus if we are in the boot process. 1074 * XXX xpt_scan_bus cannot detect LUN larger than 0 1075 * if LUN 0 doesn't exist. 1076 */ 1077 if (sbp_cold > 0) { 1078 sdev->status = SBP_DEV_ATTACHED; 1079 SBP_UNLOCK(sbp); 1080 return; 1081 } 1082 1083 sbp_scan_dev(sdev); 1084 SBP_UNLOCK(sbp); 1085 } 1086 1087 static void 1088 sbp_agent_reset_callback(struct fw_xfer *xfer) 1089 { 1090 struct sbp_dev *sdev; 1091 1092 sdev = (struct sbp_dev *)xfer->sc; 1093 SBP_DEBUG(1) 1094 device_printf(sdev->target->sbp->fd.dev, 1095 "%s:%s\n", __func__, sdev->bustgtlun); 1096 END_DEBUG 1097 if (xfer->resp != 0) { 1098 device_printf(sdev->target->sbp->fd.dev, 1099 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1100 } 1101 1102 SBP_LOCK(sdev->target->sbp); 1103 sbp_xfer_free(xfer); 1104 if (sdev->path) { 1105 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1106 sdev->freeze = 0; 1107 } 1108 SBP_UNLOCK(sdev->target->sbp); 1109 } 1110 1111 static void 1112 sbp_agent_reset(struct sbp_dev *sdev) 1113 { 1114 struct fw_xfer *xfer; 1115 struct fw_pkt *fp; 1116 1117 SBP_LOCK_ASSERT(sdev->target->sbp); 1118 SBP_DEBUG(0) 1119 device_printf(sdev->target->sbp->fd.dev, 1120 "%s:%s\n", __func__, sdev->bustgtlun); 1121 END_DEBUG 1122 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1123 if (xfer == NULL) 1124 return; 1125 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1126 xfer->hand = sbp_agent_reset_callback; 1127 else 1128 xfer->hand = sbp_do_attach; 1129 fp = &xfer->send.hdr; 1130 fp->mode.wreqq.data = htonl(0xf); 1131 fw_asyreq(xfer->fc, -1, xfer); 1132 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1133 } 1134 1135 static void 1136 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1137 { 1138 struct sbp_dev *sdev; 1139 1140 sdev = (struct sbp_dev *)xfer->sc; 1141 SBP_DEBUG(1) 1142 device_printf(sdev->target->sbp->fd.dev, 1143 "%s:%s\n", __func__, sdev->bustgtlun); 1144 END_DEBUG 1145 SBP_LOCK(sdev->target->sbp); 1146 sbp_xfer_free(xfer); 1147 sbp_agent_reset(sdev); 1148 SBP_UNLOCK(sdev->target->sbp); 1149 } 1150 1151 static void 1152 sbp_busy_timeout(struct sbp_dev *sdev) 1153 { 1154 struct fw_pkt *fp; 1155 struct fw_xfer *xfer; 1156 SBP_DEBUG(0) 1157 device_printf(sdev->target->sbp->fd.dev, 1158 "%s:%s\n", __func__, sdev->bustgtlun); 1159 END_DEBUG 1160 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1161 1162 xfer->hand = sbp_busy_timeout_callback; 1163 fp = &xfer->send.hdr; 1164 fp->mode.wreqq.dest_hi = 0xffff; 1165 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1166 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1167 fw_asyreq(xfer->fc, -1, xfer); 1168 } 1169 1170 static void 1171 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1172 { 1173 struct sbp_dev *sdev; 1174 sdev = (struct sbp_dev *)xfer->sc; 1175 1176 SBP_DEBUG(2) 1177 device_printf(sdev->target->sbp->fd.dev, 1178 "%s:%s\n", __func__, sdev->bustgtlun); 1179 END_DEBUG 1180 if (xfer->resp != 0) { 1181 /* XXX */ 1182 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1183 } 1184 SBP_LOCK(sdev->target->sbp); 1185 sbp_xfer_free(xfer); 1186 1187 sdev->flags &= ~ORB_POINTER_ACTIVE; 1188 1189 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1190 struct sbp_ocb *ocb; 1191 1192 sdev->flags &= ~ORB_POINTER_NEED; 1193 ocb = STAILQ_FIRST(&sdev->ocbs); 1194 if (ocb != NULL) 1195 sbp_orb_pointer(sdev, ocb); 1196 } 1197 SBP_UNLOCK(sdev->target->sbp); 1198 return; 1199 } 1200 1201 static void 1202 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1203 { 1204 struct fw_xfer *xfer; 1205 struct fw_pkt *fp; 1206 SBP_DEBUG(1) 1207 device_printf(sdev->target->sbp->fd.dev, 1208 "%s:%s 0x%08x\n", 1209 __func__, sdev->bustgtlun, 1210 (uint32_t)ocb->bus_addr); 1211 END_DEBUG 1212 1213 SBP_LOCK_ASSERT(sdev->target->sbp); 1214 1215 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1216 SBP_DEBUG(0) 1217 printf("%s: orb pointer active\n", __func__); 1218 END_DEBUG 1219 sdev->flags |= ORB_POINTER_NEED; 1220 return; 1221 } 1222 1223 sdev->flags |= ORB_POINTER_ACTIVE; 1224 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1225 if (xfer == NULL) 1226 return; 1227 xfer->hand = sbp_orb_pointer_callback; 1228 1229 fp = &xfer->send.hdr; 1230 fp->mode.wreqb.len = 8; 1231 fp->mode.wreqb.extcode = 0; 1232 xfer->send.payload[0] = 1233 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1234 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1235 1236 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1237 sbp_xfer_free(xfer); 1238 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1239 xpt_done(ocb->ccb); 1240 } 1241 } 1242 1243 static void 1244 sbp_doorbell_callback(struct fw_xfer *xfer) 1245 { 1246 struct sbp_dev *sdev; 1247 sdev = (struct sbp_dev *)xfer->sc; 1248 1249 SBP_DEBUG(1) 1250 device_printf(sdev->target->sbp->fd.dev, 1251 "%s:%s\n", __func__, sdev->bustgtlun); 1252 END_DEBUG 1253 if (xfer->resp != 0) { 1254 /* XXX */ 1255 device_printf(sdev->target->sbp->fd.dev, 1256 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1257 } 1258 SBP_LOCK(sdev->target->sbp); 1259 sbp_xfer_free(xfer); 1260 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1261 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1262 sdev->flags &= ~ORB_DOORBELL_NEED; 1263 sbp_doorbell(sdev); 1264 } 1265 SBP_UNLOCK(sdev->target->sbp); 1266 } 1267 1268 static void 1269 sbp_doorbell(struct sbp_dev *sdev) 1270 { 1271 struct fw_xfer *xfer; 1272 struct fw_pkt *fp; 1273 SBP_DEBUG(1) 1274 device_printf(sdev->target->sbp->fd.dev, 1275 "%s:%s\n", __func__, sdev->bustgtlun); 1276 END_DEBUG 1277 1278 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1279 sdev->flags |= ORB_DOORBELL_NEED; 1280 return; 1281 } 1282 sdev->flags |= ORB_DOORBELL_ACTIVE; 1283 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1284 if (xfer == NULL) 1285 return; 1286 xfer->hand = sbp_doorbell_callback; 1287 fp = &xfer->send.hdr; 1288 fp->mode.wreqq.data = htonl(0xf); 1289 fw_asyreq(xfer->fc, -1, xfer); 1290 } 1291 1292 static struct fw_xfer * 1293 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1294 { 1295 struct fw_xfer *xfer; 1296 struct fw_pkt *fp; 1297 struct sbp_target *target; 1298 int new = 0; 1299 1300 SBP_LOCK_ASSERT(sdev->target->sbp); 1301 1302 target = sdev->target; 1303 xfer = STAILQ_FIRST(&target->xferlist); 1304 if (xfer == NULL) { 1305 if (target->n_xfer > 5 /* XXX */) { 1306 printf("sbp: no more xfer for this target\n"); 1307 return (NULL); 1308 } 1309 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1310 if (xfer == NULL) { 1311 printf("sbp: fw_xfer_alloc_buf failed\n"); 1312 return NULL; 1313 } 1314 target->n_xfer++; 1315 if (debug) 1316 printf("sbp: alloc %d xfer\n", target->n_xfer); 1317 new = 1; 1318 } else { 1319 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1320 } 1321 1322 if (new) { 1323 xfer->recv.pay_len = 0; 1324 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1325 xfer->fc = sdev->target->sbp->fd.fc; 1326 } 1327 1328 if (tcode == FWTCODE_WREQB) 1329 xfer->send.pay_len = 8; 1330 else 1331 xfer->send.pay_len = 0; 1332 1333 xfer->sc = (caddr_t)sdev; 1334 fp = &xfer->send.hdr; 1335 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1336 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1337 fp->mode.wreqq.tlrt = 0; 1338 fp->mode.wreqq.tcode = tcode; 1339 fp->mode.wreqq.pri = 0; 1340 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1341 1342 return xfer; 1343 } 1344 1345 static void 1346 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1347 { 1348 struct fw_xfer *xfer; 1349 struct fw_pkt *fp; 1350 struct sbp_ocb *ocb; 1351 struct sbp_target *target; 1352 int nid; 1353 1354 target = sdev->target; 1355 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1356 1357 SBP_LOCK_ASSERT(target->sbp); 1358 if (func == ORB_FUN_RUNQUEUE) { 1359 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1360 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1361 return; 1362 } 1363 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1364 goto start; 1365 } 1366 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1367 /* XXX */ 1368 return; 1369 } 1370 ocb->flags = OCB_ACT_MGM; 1371 ocb->sdev = sdev; 1372 1373 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1374 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1375 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1376 1377 SBP_DEBUG(0) 1378 device_printf(sdev->target->sbp->fd.dev, 1379 "%s:%s %s\n", 1380 __func__,sdev->bustgtlun, 1381 orb_fun_name[(func >> 16) & 0xf]); 1382 END_DEBUG 1383 switch (func) { 1384 case ORB_FUN_LGI: 1385 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1386 ocb->orb[2] = htonl(nid << 16); 1387 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1388 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1389 if (ex_login) 1390 ocb->orb[4] |= htonl(ORB_EXV); 1391 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1392 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1393 break; 1394 case ORB_FUN_ATA: 1395 ocb->orb[0] = htonl((0 << 16) | 0); 1396 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1397 /* fall through */ 1398 case ORB_FUN_RCN: 1399 case ORB_FUN_LGO: 1400 case ORB_FUN_LUR: 1401 case ORB_FUN_RST: 1402 case ORB_FUN_ATS: 1403 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1404 break; 1405 } 1406 1407 if (target->mgm_ocb_cur != NULL) { 1408 /* there is a standing ORB */ 1409 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1410 return; 1411 } 1412 start: 1413 target->mgm_ocb_cur = ocb; 1414 1415 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1416 sbp_mgm_timeout, (caddr_t)ocb); 1417 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1418 if (xfer == NULL) { 1419 return; 1420 } 1421 xfer->hand = sbp_mgm_callback; 1422 1423 fp = &xfer->send.hdr; 1424 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1425 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1426 fp->mode.wreqb.len = 8; 1427 fp->mode.wreqb.extcode = 0; 1428 xfer->send.payload[0] = htonl(nid << 16); 1429 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1430 1431 fw_asyreq(xfer->fc, -1, xfer); 1432 } 1433 1434 static void 1435 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1436 { 1437 struct ccb_scsiio *csio; 1438 1439 csio = &ocb->ccb->csio; 1440 printf("%s:%d:%jx XPT_SCSI_IO: " 1441 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1442 ", flags: 0x%02x, " 1443 "%db cmd/%db data/%db sense\n", 1444 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1445 ocb->ccb->ccb_h.target_id, 1446 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1447 csio->cdb_io.cdb_bytes[0], 1448 csio->cdb_io.cdb_bytes[1], 1449 csio->cdb_io.cdb_bytes[2], 1450 csio->cdb_io.cdb_bytes[3], 1451 csio->cdb_io.cdb_bytes[4], 1452 csio->cdb_io.cdb_bytes[5], 1453 csio->cdb_io.cdb_bytes[6], 1454 csio->cdb_io.cdb_bytes[7], 1455 csio->cdb_io.cdb_bytes[8], 1456 csio->cdb_io.cdb_bytes[9], 1457 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1458 csio->cdb_len, csio->dxfer_len, 1459 csio->sense_len); 1460 } 1461 1462 static void 1463 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1464 { 1465 struct sbp_cmd_status *sbp_cmd_status; 1466 struct scsi_sense_data_fixed *sense; 1467 1468 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1469 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1470 1471 SBP_DEBUG(0) 1472 sbp_print_scsi_cmd(ocb); 1473 /* XXX need decode status */ 1474 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1475 ocb->sdev->bustgtlun, 1476 sbp_cmd_status->status, 1477 sbp_cmd_status->sfmt, 1478 sbp_cmd_status->valid, 1479 sbp_cmd_status->s_key, 1480 sbp_cmd_status->s_code, 1481 sbp_cmd_status->s_qlfr, 1482 sbp_status->len); 1483 END_DEBUG 1484 1485 switch (sbp_cmd_status->status) { 1486 case SCSI_STATUS_CHECK_COND: 1487 case SCSI_STATUS_BUSY: 1488 case SCSI_STATUS_CMD_TERMINATED: 1489 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1490 sense->error_code = SSD_CURRENT_ERROR; 1491 } else { 1492 sense->error_code = SSD_DEFERRED_ERROR; 1493 } 1494 if (sbp_cmd_status->valid) 1495 sense->error_code |= SSD_ERRCODE_VALID; 1496 sense->flags = sbp_cmd_status->s_key; 1497 if (sbp_cmd_status->mark) 1498 sense->flags |= SSD_FILEMARK; 1499 if (sbp_cmd_status->eom) 1500 sense->flags |= SSD_EOM; 1501 if (sbp_cmd_status->ill_len) 1502 sense->flags |= SSD_ILI; 1503 1504 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1505 1506 if (sbp_status->len <= 1) 1507 /* XXX not scsi status. shouldn't be happened */ 1508 sense->extra_len = 0; 1509 else if (sbp_status->len <= 4) 1510 /* add_sense_code(_qual), info, cmd_spec_info */ 1511 sense->extra_len = 6; 1512 else 1513 /* fru, sense_key_spec */ 1514 sense->extra_len = 10; 1515 1516 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1517 1518 sense->add_sense_code = sbp_cmd_status->s_code; 1519 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1520 sense->fru = sbp_cmd_status->fru; 1521 1522 bcopy(&sbp_cmd_status->s_keydep[0], 1523 &sense->sense_key_spec[0], 3); 1524 1525 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1526 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1527 | CAM_AUTOSNS_VALID; 1528 /* 1529 { 1530 uint8_t j, *tmp; 1531 tmp = sense; 1532 for (j = 0; j < 32; j += 8) { 1533 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1534 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1535 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1536 } 1537 1538 } 1539 */ 1540 break; 1541 default: 1542 device_printf(ocb->sdev->target->sbp->fd.dev, 1543 "%s:%s unknown scsi status 0x%x\n", 1544 __func__, ocb->sdev->bustgtlun, 1545 sbp_cmd_status->status); 1546 } 1547 } 1548 1549 static void 1550 sbp_fix_inq_data(struct sbp_ocb *ocb) 1551 { 1552 union ccb *ccb; 1553 struct sbp_dev *sdev; 1554 struct scsi_inquiry_data *inq; 1555 1556 ccb = ocb->ccb; 1557 sdev = ocb->sdev; 1558 1559 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1560 return; 1561 SBP_DEBUG(1) 1562 device_printf(sdev->target->sbp->fd.dev, 1563 "%s:%s\n", __func__, sdev->bustgtlun); 1564 END_DEBUG 1565 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1566 switch (SID_TYPE(inq)) { 1567 case T_DIRECT: 1568 #if 0 1569 /* 1570 * XXX Convert Direct Access device to RBC. 1571 * I've never seen FireWire DA devices which support READ_6. 1572 */ 1573 if (SID_TYPE(inq) == T_DIRECT) 1574 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1575 #endif 1576 /* fall through */ 1577 case T_RBC: 1578 /* 1579 * Override vendor/product/revision information. 1580 * Some devices sometimes return strange strings. 1581 */ 1582 #if 1 1583 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1584 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1585 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1586 #endif 1587 break; 1588 } 1589 /* 1590 * Force to enable/disable tagged queuing. 1591 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1592 */ 1593 if (sbp_tags > 0) 1594 inq->flags |= SID_CmdQue; 1595 else if (sbp_tags < 0) 1596 inq->flags &= ~SID_CmdQue; 1597 1598 } 1599 1600 static void 1601 sbp_recv1(struct fw_xfer *xfer) 1602 { 1603 struct fw_pkt *rfp; 1604 #if NEED_RESPONSE 1605 struct fw_pkt *sfp; 1606 #endif 1607 struct sbp_softc *sbp; 1608 struct sbp_dev *sdev; 1609 struct sbp_ocb *ocb; 1610 struct sbp_login_res *login_res = NULL; 1611 struct sbp_status *sbp_status; 1612 struct sbp_target *target; 1613 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1614 uint32_t addr; 1615 /* 1616 uint32_t *ld; 1617 ld = xfer->recv.buf; 1618 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1619 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1620 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1621 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1622 */ 1623 sbp = (struct sbp_softc *)xfer->sc; 1624 SBP_LOCK_ASSERT(sbp); 1625 if (xfer->resp != 0) { 1626 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1627 goto done0; 1628 } 1629 if (xfer->recv.payload == NULL) { 1630 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1631 goto done0; 1632 } 1633 rfp = &xfer->recv.hdr; 1634 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1635 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1636 goto done0; 1637 } 1638 sbp_status = (struct sbp_status *)xfer->recv.payload; 1639 addr = rfp->mode.wreqb.dest_lo; 1640 SBP_DEBUG(2) 1641 printf("received address 0x%x\n", addr); 1642 END_DEBUG 1643 t = SBP_ADDR2TRG(addr); 1644 if (t >= SBP_NUM_TARGETS) { 1645 device_printf(sbp->fd.dev, 1646 "sbp_recv1: invalid target %d\n", t); 1647 goto done0; 1648 } 1649 target = &sbp->targets[t]; 1650 l = SBP_ADDR2LUN(addr); 1651 if (l >= target->num_lun || target->luns[l] == NULL) { 1652 device_printf(sbp->fd.dev, 1653 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1654 goto done0; 1655 } 1656 sdev = target->luns[l]; 1657 1658 ocb = NULL; 1659 switch (sbp_status->src) { 1660 case 0: 1661 case 1: 1662 /* check mgm_ocb_cur first */ 1663 ocb = target->mgm_ocb_cur; 1664 if (ocb != NULL) { 1665 if (OCB_MATCH(ocb, sbp_status)) { 1666 callout_stop(&target->mgm_ocb_timeout); 1667 target->mgm_ocb_cur = NULL; 1668 break; 1669 } 1670 } 1671 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1672 if (ocb == NULL) { 1673 device_printf(sdev->target->sbp->fd.dev, 1674 "%s:%s No ocb(%x) on the queue\n", 1675 __func__,sdev->bustgtlun, 1676 ntohl(sbp_status->orb_lo)); 1677 } 1678 break; 1679 case 2: 1680 /* unsolicit */ 1681 device_printf(sdev->target->sbp->fd.dev, 1682 "%s:%s unsolicit status received\n", 1683 __func__, sdev->bustgtlun); 1684 break; 1685 default: 1686 device_printf(sdev->target->sbp->fd.dev, 1687 "%s:%s unknown sbp_status->src\n", 1688 __func__, sdev->bustgtlun); 1689 } 1690 1691 status_valid0 = (sbp_status->src < 2 1692 && sbp_status->resp == ORB_RES_CMPL 1693 && sbp_status->dead == 0); 1694 status_valid = (status_valid0 && sbp_status->status == 0); 1695 1696 if (!status_valid0 || debug > 2) { 1697 int status; 1698 SBP_DEBUG(0) 1699 device_printf(sdev->target->sbp->fd.dev, 1700 "%s:%s ORB status src:%x resp:%x dead:%x" 1701 " len:%x stat:%x orb:%x%08x\n", 1702 __func__, sdev->bustgtlun, 1703 sbp_status->src, sbp_status->resp, sbp_status->dead, 1704 sbp_status->len, sbp_status->status, 1705 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1706 END_DEBUG 1707 device_printf(sdev->target->sbp->fd.dev, 1708 "%s\n", sdev->bustgtlun); 1709 status = sbp_status->status; 1710 switch (sbp_status->resp) { 1711 case 0: 1712 if (status > MAX_ORB_STATUS0) 1713 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1714 else 1715 printf("%s\n", orb_status0[status]); 1716 break; 1717 case 1: 1718 printf("Obj: %s, Error: %s\n", 1719 orb_status1_object[(status >> 6) & 3], 1720 orb_status1_serial_bus_error[status & 0xf]); 1721 break; 1722 case 2: 1723 printf("Illegal request\n"); 1724 break; 1725 case 3: 1726 printf("Vendor dependent\n"); 1727 break; 1728 default: 1729 printf("unknown respose code %d\n", sbp_status->resp); 1730 } 1731 } 1732 1733 /* we have to reset the fetch agent if it's dead */ 1734 if (sbp_status->dead) { 1735 if (sdev->path) { 1736 xpt_freeze_devq(sdev->path, 1); 1737 sdev->freeze++; 1738 } 1739 reset_agent = 1; 1740 } 1741 1742 if (ocb == NULL) 1743 goto done; 1744 1745 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1746 case ORB_FMT_NOP: 1747 break; 1748 case ORB_FMT_VED: 1749 break; 1750 case ORB_FMT_STD: 1751 switch (ocb->flags) { 1752 case OCB_ACT_MGM: 1753 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1754 reset_agent = 0; 1755 switch (orb_fun) { 1756 case ORB_FUN_LGI: 1757 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1758 login_res = sdev->login; 1759 login_res->len = ntohs(login_res->len); 1760 login_res->id = ntohs(login_res->id); 1761 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1762 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1763 if (status_valid) { 1764 SBP_DEBUG(0) 1765 device_printf(sdev->target->sbp->fd.dev, 1766 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1767 __func__, sdev->bustgtlun, 1768 login_res->len, login_res->id, 1769 login_res->cmd_hi, login_res->cmd_lo, 1770 ntohs(login_res->recon_hold)); 1771 END_DEBUG 1772 sbp_busy_timeout(sdev); 1773 } else { 1774 /* forgot logout? */ 1775 device_printf(sdev->target->sbp->fd.dev, 1776 "%s:%s login failed\n", 1777 __func__, sdev->bustgtlun); 1778 sdev->status = SBP_DEV_RESET; 1779 } 1780 break; 1781 case ORB_FUN_RCN: 1782 login_res = sdev->login; 1783 if (status_valid) { 1784 SBP_DEBUG(0) 1785 device_printf(sdev->target->sbp->fd.dev, 1786 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1787 __func__, sdev->bustgtlun, 1788 login_res->len, login_res->id, 1789 login_res->cmd_hi, login_res->cmd_lo); 1790 END_DEBUG 1791 if (sdev->status == SBP_DEV_ATTACHED) 1792 sbp_scan_dev(sdev); 1793 else 1794 sbp_agent_reset(sdev); 1795 } else { 1796 /* reconnection hold time exceed? */ 1797 SBP_DEBUG(0) 1798 device_printf(sdev->target->sbp->fd.dev, 1799 "%s:%s reconnect failed\n", 1800 __func__, sdev->bustgtlun); 1801 END_DEBUG 1802 sbp_login(sdev); 1803 } 1804 break; 1805 case ORB_FUN_LGO: 1806 sdev->status = SBP_DEV_RESET; 1807 break; 1808 case ORB_FUN_RST: 1809 sbp_busy_timeout(sdev); 1810 break; 1811 case ORB_FUN_LUR: 1812 case ORB_FUN_ATA: 1813 case ORB_FUN_ATS: 1814 sbp_agent_reset(sdev); 1815 break; 1816 default: 1817 device_printf(sdev->target->sbp->fd.dev, 1818 "%s:%s unknown function %d\n", 1819 __func__, sdev->bustgtlun, orb_fun); 1820 break; 1821 } 1822 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1823 break; 1824 case OCB_ACT_CMD: 1825 sdev->timeout = 0; 1826 if (ocb->ccb != NULL) { 1827 union ccb *ccb; 1828 1829 ccb = ocb->ccb; 1830 if (sbp_status->len > 1) { 1831 sbp_scsi_status(sbp_status, ocb); 1832 } else { 1833 if (sbp_status->resp != ORB_RES_CMPL) { 1834 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1835 } else { 1836 ccb->ccb_h.status = CAM_REQ_CMP; 1837 } 1838 } 1839 /* fix up inq data */ 1840 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1841 sbp_fix_inq_data(ocb); 1842 xpt_done(ccb); 1843 } 1844 break; 1845 default: 1846 break; 1847 } 1848 } 1849 1850 if (!use_doorbell) 1851 sbp_free_ocb(sdev, ocb); 1852 done: 1853 if (reset_agent) 1854 sbp_agent_reset(sdev); 1855 1856 done0: 1857 xfer->recv.pay_len = SBP_RECV_LEN; 1858 /* The received packet is usually small enough to be stored within 1859 * the buffer. In that case, the controller return ack_complete and 1860 * no respose is necessary. 1861 * 1862 * XXX fwohci.c and firewire.c should inform event_code such as 1863 * ack_complete or ack_pending to upper driver. 1864 */ 1865 #if NEED_RESPONSE 1866 xfer->send.off = 0; 1867 sfp = (struct fw_pkt *)xfer->send.buf; 1868 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1869 xfer->dst = sfp->mode.wres.dst; 1870 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1871 xfer->hand = sbp_loginres_callback; 1872 1873 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1874 sfp->mode.wres.tcode = FWTCODE_WRES; 1875 sfp->mode.wres.rtcode = 0; 1876 sfp->mode.wres.pri = 0; 1877 1878 fw_asyreq(xfer->fc, -1, xfer); 1879 #else 1880 /* recycle */ 1881 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1882 #endif 1883 } 1884 1885 static void 1886 sbp_recv(struct fw_xfer *xfer) 1887 { 1888 struct sbp_softc *sbp; 1889 1890 sbp = (struct sbp_softc *)xfer->sc; 1891 SBP_LOCK(sbp); 1892 sbp_recv1(xfer); 1893 SBP_UNLOCK(sbp); 1894 } 1895 /* 1896 * sbp_attach() 1897 */ 1898 static int 1899 sbp_attach(device_t dev) 1900 { 1901 struct sbp_softc *sbp; 1902 struct cam_devq *devq; 1903 struct firewire_comm *fc; 1904 int i, error; 1905 1906 if (DFLTPHYS > SBP_MAXPHYS) 1907 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1908 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1909 SBP_MAXPHYS / 1024); 1910 1911 if (!firewire_phydma_enable) 1912 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1913 "for SBP over FireWire.\n"); 1914 SBP_DEBUG(0) 1915 printf("sbp_attach (cold=%d)\n", cold); 1916 END_DEBUG 1917 1918 if (cold) 1919 sbp_cold++; 1920 sbp = device_get_softc(dev); 1921 sbp->fd.dev = dev; 1922 sbp->fd.fc = fc = device_get_ivars(dev); 1923 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1924 1925 if (max_speed < 0) 1926 max_speed = fc->speed; 1927 1928 error = bus_dma_tag_create(/*parent*/fc->dmat, 1929 /* XXX shoud be 4 for sane backend? */ 1930 /*alignment*/1, 1931 /*boundary*/0, 1932 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1933 /*highaddr*/BUS_SPACE_MAXADDR, 1934 /*filter*/NULL, /*filterarg*/NULL, 1935 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1936 /*maxsegsz*/SBP_SEG_MAX, 1937 /*flags*/BUS_DMA_ALLOCNOW, 1938 /*lockfunc*/busdma_lock_mutex, 1939 /*lockarg*/&sbp->mtx, 1940 &sbp->dmat); 1941 if (error != 0) { 1942 printf("sbp_attach: Could not allocate DMA tag " 1943 "- error %d\n", error); 1944 return (ENOMEM); 1945 } 1946 1947 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1948 if (devq == NULL) 1949 return (ENXIO); 1950 1951 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1952 sbp->targets[i].fwdev = NULL; 1953 sbp->targets[i].luns = NULL; 1954 sbp->targets[i].sbp = sbp; 1955 } 1956 1957 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1958 device_get_unit(dev), 1959 &sbp->mtx, 1960 /*untagged*/ 1, 1961 /*tagged*/ SBP_QUEUE_LEN - 1, 1962 devq); 1963 1964 if (sbp->sim == NULL) { 1965 cam_simq_free(devq); 1966 return (ENXIO); 1967 } 1968 1969 SBP_LOCK(sbp); 1970 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1971 goto fail; 1972 1973 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1974 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1975 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1976 goto fail; 1977 } 1978 SBP_UNLOCK(sbp); 1979 1980 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1981 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1982 sbp->fwb.end = sbp->fwb.start + 0xffff; 1983 /* pre-allocate xfer */ 1984 STAILQ_INIT(&sbp->fwb.xferlist); 1985 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1986 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1987 fc, (void *)sbp, sbp_recv); 1988 1989 fw_bindadd(fc, &sbp->fwb); 1990 1991 sbp->fd.post_busreset = sbp_post_busreset; 1992 sbp->fd.post_explore = sbp_post_explore; 1993 1994 if (fc->status != -1) { 1995 sbp_post_busreset(sbp); 1996 sbp_post_explore(sbp); 1997 } 1998 SBP_LOCK(sbp); 1999 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2000 SBP_UNLOCK(sbp); 2001 2002 return (0); 2003 fail: 2004 SBP_UNLOCK(sbp); 2005 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2006 return (ENXIO); 2007 } 2008 2009 static int 2010 sbp_logout_all(struct sbp_softc *sbp) 2011 { 2012 struct sbp_target *target; 2013 struct sbp_dev *sdev; 2014 int i, j; 2015 2016 SBP_DEBUG(0) 2017 printf("sbp_logout_all\n"); 2018 END_DEBUG 2019 SBP_LOCK_ASSERT(sbp); 2020 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2021 target = &sbp->targets[i]; 2022 if (target->luns == NULL) 2023 continue; 2024 for (j = 0; j < target->num_lun; j++) { 2025 sdev = target->luns[j]; 2026 if (sdev == NULL) 2027 continue; 2028 callout_stop(&sdev->login_callout); 2029 if (sdev->status >= SBP_DEV_TOATTACH && 2030 sdev->status <= SBP_DEV_ATTACHED) 2031 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2032 } 2033 } 2034 2035 return 0; 2036 } 2037 2038 static int 2039 sbp_shutdown(device_t dev) 2040 { 2041 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2042 2043 SBP_LOCK(sbp); 2044 sbp_logout_all(sbp); 2045 SBP_UNLOCK(sbp); 2046 return (0); 2047 } 2048 2049 static void 2050 sbp_free_sdev(struct sbp_dev *sdev) 2051 { 2052 struct sbp_softc *sbp; 2053 int i; 2054 2055 if (sdev == NULL) 2056 return; 2057 sbp = sdev->target->sbp; 2058 SBP_UNLOCK(sbp); 2059 callout_drain(&sdev->login_callout); 2060 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2061 callout_drain(&sdev->ocb[i].timer); 2062 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2063 } 2064 fwdma_free(sbp->fd.fc, &sdev->dma); 2065 free(sdev, M_SBP); 2066 SBP_LOCK(sbp); 2067 } 2068 2069 static void 2070 sbp_free_target(struct sbp_target *target) 2071 { 2072 struct sbp_softc *sbp; 2073 struct fw_xfer *xfer, *next; 2074 int i; 2075 2076 if (target->luns == NULL) 2077 return; 2078 sbp = target->sbp; 2079 SBP_LOCK_ASSERT(sbp); 2080 SBP_UNLOCK(sbp); 2081 callout_drain(&target->mgm_ocb_timeout); 2082 callout_drain(&target->scan_callout); 2083 SBP_LOCK(sbp); 2084 for (i = 0; i < target->num_lun; i++) 2085 sbp_free_sdev(target->luns[i]); 2086 2087 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2088 fw_xfer_free_buf(xfer); 2089 } 2090 STAILQ_INIT(&target->xferlist); 2091 free(target->luns, M_SBP); 2092 target->num_lun = 0; 2093 target->luns = NULL; 2094 target->fwdev = NULL; 2095 } 2096 2097 static int 2098 sbp_detach(device_t dev) 2099 { 2100 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2101 struct firewire_comm *fc = sbp->fd.fc; 2102 int i; 2103 2104 SBP_DEBUG(0) 2105 printf("sbp_detach\n"); 2106 END_DEBUG 2107 2108 SBP_LOCK(sbp); 2109 for (i = 0; i < SBP_NUM_TARGETS; i++) 2110 sbp_cam_detach_target(&sbp->targets[i]); 2111 2112 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2113 xpt_free_path(sbp->path); 2114 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2115 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2116 2117 sbp_logout_all(sbp); 2118 SBP_UNLOCK(sbp); 2119 2120 /* XXX wait for logout completion */ 2121 pause("sbpdtc", hz/2); 2122 2123 SBP_LOCK(sbp); 2124 for (i = 0; i < SBP_NUM_TARGETS; i++) 2125 sbp_free_target(&sbp->targets[i]); 2126 SBP_UNLOCK(sbp); 2127 2128 fw_bindremove(fc, &sbp->fwb); 2129 fw_xferlist_remove(&sbp->fwb.xferlist); 2130 2131 bus_dma_tag_destroy(sbp->dmat); 2132 mtx_destroy(&sbp->mtx); 2133 2134 return (0); 2135 } 2136 2137 static void 2138 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2139 { 2140 if (sdev == NULL) 2141 return; 2142 if (sdev->status == SBP_DEV_DEAD) 2143 return; 2144 if (sdev->status == SBP_DEV_RESET) 2145 return; 2146 SBP_LOCK_ASSERT(sdev->target->sbp); 2147 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2148 if (sdev->path) { 2149 xpt_release_devq(sdev->path, 2150 sdev->freeze, TRUE); 2151 sdev->freeze = 0; 2152 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2153 xpt_free_path(sdev->path); 2154 sdev->path = NULL; 2155 } 2156 } 2157 2158 static void 2159 sbp_cam_detach_target(struct sbp_target *target) 2160 { 2161 int i; 2162 2163 SBP_LOCK_ASSERT(target->sbp); 2164 if (target->luns != NULL) { 2165 SBP_DEBUG(0) 2166 printf("sbp_detach_target %d\n", target->target_id); 2167 END_DEBUG 2168 callout_stop(&target->scan_callout); 2169 for (i = 0; i < target->num_lun; i++) 2170 sbp_cam_detach_sdev(target->luns[i]); 2171 } 2172 } 2173 2174 static void 2175 sbp_target_reset(struct sbp_dev *sdev, int method) 2176 { 2177 int i; 2178 struct sbp_target *target = sdev->target; 2179 struct sbp_dev *tsdev; 2180 2181 SBP_LOCK_ASSERT(target->sbp); 2182 for (i = 0; i < target->num_lun; i++) { 2183 tsdev = target->luns[i]; 2184 if (tsdev == NULL) 2185 continue; 2186 if (tsdev->status == SBP_DEV_DEAD) 2187 continue; 2188 if (tsdev->status == SBP_DEV_RESET) 2189 continue; 2190 xpt_freeze_devq(tsdev->path, 1); 2191 tsdev->freeze++; 2192 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2193 if (method == 2) 2194 tsdev->status = SBP_DEV_LOGIN; 2195 } 2196 switch (method) { 2197 case 1: 2198 printf("target reset\n"); 2199 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2200 break; 2201 case 2: 2202 printf("reset start\n"); 2203 sbp_reset_start(sdev); 2204 break; 2205 } 2206 2207 } 2208 2209 static void 2210 sbp_mgm_timeout(void *arg) 2211 { 2212 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2213 struct sbp_dev *sdev = ocb->sdev; 2214 struct sbp_target *target = sdev->target; 2215 2216 SBP_LOCK_ASSERT(target->sbp); 2217 device_printf(sdev->target->sbp->fd.dev, 2218 "%s:%s request timeout(mgm orb:0x%08x)\n", 2219 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2220 target->mgm_ocb_cur = NULL; 2221 sbp_free_ocb(sdev, ocb); 2222 #if 0 2223 /* XXX */ 2224 printf("run next request\n"); 2225 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2226 #endif 2227 device_printf(sdev->target->sbp->fd.dev, 2228 "%s:%s reset start\n", 2229 __func__, sdev->bustgtlun); 2230 sbp_reset_start(sdev); 2231 } 2232 2233 static void 2234 sbp_timeout(void *arg) 2235 { 2236 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2237 struct sbp_dev *sdev = ocb->sdev; 2238 2239 device_printf(sdev->target->sbp->fd.dev, 2240 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2241 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2242 2243 SBP_LOCK_ASSERT(sdev->target->sbp); 2244 sdev->timeout++; 2245 switch (sdev->timeout) { 2246 case 1: 2247 printf("agent reset\n"); 2248 xpt_freeze_devq(sdev->path, 1); 2249 sdev->freeze++; 2250 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2251 sbp_agent_reset(sdev); 2252 break; 2253 case 2: 2254 case 3: 2255 sbp_target_reset(sdev, sdev->timeout - 1); 2256 break; 2257 #if 0 2258 default: 2259 /* XXX give up */ 2260 sbp_cam_detach_target(target); 2261 if (target->luns != NULL) 2262 free(target->luns, M_SBP); 2263 target->num_lun = 0; 2264 target->luns = NULL; 2265 target->fwdev = NULL; 2266 #endif 2267 } 2268 } 2269 2270 static void 2271 sbp_action(struct cam_sim *sim, union ccb *ccb) 2272 { 2273 2274 struct sbp_softc *sbp = cam_sim_softc(sim); 2275 struct sbp_target *target = NULL; 2276 struct sbp_dev *sdev = NULL; 2277 2278 if (sbp != NULL) 2279 SBP_LOCK_ASSERT(sbp); 2280 /* target:lun -> sdev mapping */ 2281 if (sbp != NULL 2282 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2283 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2284 target = &sbp->targets[ccb->ccb_h.target_id]; 2285 if (target->fwdev != NULL 2286 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2287 && ccb->ccb_h.target_lun < target->num_lun) { 2288 sdev = target->luns[ccb->ccb_h.target_lun]; 2289 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2290 sdev->status != SBP_DEV_PROBE) 2291 sdev = NULL; 2292 } 2293 } 2294 2295 SBP_DEBUG(1) 2296 if (sdev == NULL) 2297 printf("invalid target %d lun %jx\n", 2298 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2299 END_DEBUG 2300 2301 switch (ccb->ccb_h.func_code) { 2302 case XPT_SCSI_IO: 2303 case XPT_RESET_DEV: 2304 case XPT_GET_TRAN_SETTINGS: 2305 case XPT_SET_TRAN_SETTINGS: 2306 case XPT_CALC_GEOMETRY: 2307 if (sdev == NULL) { 2308 SBP_DEBUG(1) 2309 printf("%s:%d:%jx:func_code 0x%04x: " 2310 "Invalid target (target needed)\n", 2311 device_get_nameunit(sbp->fd.dev), 2312 ccb->ccb_h.target_id, 2313 (uintmax_t)ccb->ccb_h.target_lun, 2314 ccb->ccb_h.func_code); 2315 END_DEBUG 2316 2317 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2318 xpt_done(ccb); 2319 return; 2320 } 2321 break; 2322 case XPT_PATH_INQ: 2323 case XPT_NOOP: 2324 /* The opcodes sometimes aimed at a target (sc is valid), 2325 * sometimes aimed at the SIM (sc is invalid and target is 2326 * CAM_TARGET_WILDCARD) 2327 */ 2328 if (sbp == NULL && 2329 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2330 SBP_DEBUG(0) 2331 printf("%s:%d:%jx func_code 0x%04x: " 2332 "Invalid target (no wildcard)\n", 2333 device_get_nameunit(sbp->fd.dev), 2334 ccb->ccb_h.target_id, 2335 (uintmax_t)ccb->ccb_h.target_lun, 2336 ccb->ccb_h.func_code); 2337 END_DEBUG 2338 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2339 xpt_done(ccb); 2340 return; 2341 } 2342 break; 2343 default: 2344 /* XXX Hm, we should check the input parameters */ 2345 break; 2346 } 2347 2348 switch (ccb->ccb_h.func_code) { 2349 case XPT_SCSI_IO: 2350 { 2351 struct ccb_scsiio *csio; 2352 struct sbp_ocb *ocb; 2353 int speed; 2354 void *cdb; 2355 2356 csio = &ccb->csio; 2357 mtx_assert(sim->mtx, MA_OWNED); 2358 2359 SBP_DEBUG(2) 2360 printf("%s:%d:%jx XPT_SCSI_IO: " 2361 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2362 ", flags: 0x%02x, " 2363 "%db cmd/%db data/%db sense\n", 2364 device_get_nameunit(sbp->fd.dev), 2365 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2366 csio->cdb_io.cdb_bytes[0], 2367 csio->cdb_io.cdb_bytes[1], 2368 csio->cdb_io.cdb_bytes[2], 2369 csio->cdb_io.cdb_bytes[3], 2370 csio->cdb_io.cdb_bytes[4], 2371 csio->cdb_io.cdb_bytes[5], 2372 csio->cdb_io.cdb_bytes[6], 2373 csio->cdb_io.cdb_bytes[7], 2374 csio->cdb_io.cdb_bytes[8], 2375 csio->cdb_io.cdb_bytes[9], 2376 ccb->ccb_h.flags & CAM_DIR_MASK, 2377 csio->cdb_len, csio->dxfer_len, 2378 csio->sense_len); 2379 END_DEBUG 2380 if (sdev == NULL) { 2381 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2382 xpt_done(ccb); 2383 return; 2384 } 2385 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { 2386 ccb->ccb_h.status = CAM_REQ_INVALID; 2387 xpt_done(ccb); 2388 return; 2389 } 2390 #if 0 2391 /* if we are in probe stage, pass only probe commands */ 2392 if (sdev->status == SBP_DEV_PROBE) { 2393 char *name; 2394 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2395 printf("probe stage, periph name: %s\n", name); 2396 if (strcmp(name, "probe") != 0) { 2397 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2398 xpt_done(ccb); 2399 return; 2400 } 2401 } 2402 #endif 2403 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2404 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2405 if (sdev->freeze == 0) { 2406 xpt_freeze_devq(sdev->path, 1); 2407 sdev->freeze++; 2408 } 2409 xpt_done(ccb); 2410 return; 2411 } 2412 2413 ocb->flags = OCB_ACT_CMD; 2414 ocb->sdev = sdev; 2415 ocb->ccb = ccb; 2416 ccb->ccb_h.ccb_sdev_ptr = sdev; 2417 ocb->orb[0] = htonl(1U << 31); 2418 ocb->orb[1] = 0; 2419 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2420 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2421 speed = min(target->fwdev->speed, max_speed); 2422 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2423 | ORB_CMD_MAXP(speed + 7)); 2424 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2425 ocb->orb[4] |= htonl(ORB_CMD_IN); 2426 } 2427 2428 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2429 cdb = (void *)csio->cdb_io.cdb_ptr; 2430 else 2431 cdb = (void *)&csio->cdb_io.cdb_bytes; 2432 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2433 /* 2434 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2435 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2436 */ 2437 if (ccb->csio.dxfer_len > 0) { 2438 int error; 2439 2440 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2441 /*dma map*/ocb->dmamap, 2442 ccb, 2443 sbp_execute_ocb, 2444 ocb, 2445 /*flags*/0); 2446 if (error) 2447 printf("sbp: bus_dmamap_load error %d\n", error); 2448 } else 2449 sbp_execute_ocb(ocb, NULL, 0, 0); 2450 break; 2451 } 2452 case XPT_CALC_GEOMETRY: 2453 { 2454 struct ccb_calc_geometry *ccg; 2455 2456 ccg = &ccb->ccg; 2457 if (ccg->block_size == 0) { 2458 printf("sbp_action: block_size is 0.\n"); 2459 ccb->ccb_h.status = CAM_REQ_INVALID; 2460 xpt_done(ccb); 2461 break; 2462 } 2463 SBP_DEBUG(1) 2464 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2465 "Volume size = %jd\n", 2466 device_get_nameunit(sbp->fd.dev), 2467 cam_sim_path(sbp->sim), 2468 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2469 (uintmax_t)ccg->volume_size); 2470 END_DEBUG 2471 2472 cam_calc_geometry(ccg, /*extended*/1); 2473 xpt_done(ccb); 2474 break; 2475 } 2476 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2477 { 2478 2479 SBP_DEBUG(1) 2480 printf("%s:%d:XPT_RESET_BUS: \n", 2481 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2482 END_DEBUG 2483 2484 ccb->ccb_h.status = CAM_REQ_INVALID; 2485 xpt_done(ccb); 2486 break; 2487 } 2488 case XPT_PATH_INQ: /* Path routing inquiry */ 2489 { 2490 struct ccb_pathinq *cpi = &ccb->cpi; 2491 2492 SBP_DEBUG(1) 2493 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2494 device_get_nameunit(sbp->fd.dev), 2495 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2496 END_DEBUG 2497 cpi->version_num = 1; /* XXX??? */ 2498 cpi->hba_inquiry = PI_TAG_ABLE; 2499 cpi->target_sprt = 0; 2500 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2501 cpi->hba_eng_cnt = 0; 2502 cpi->max_target = SBP_NUM_TARGETS - 1; 2503 cpi->max_lun = SBP_NUM_LUNS - 1; 2504 cpi->initiator_id = SBP_INITIATOR; 2505 cpi->bus_id = sim->bus_id; 2506 cpi->base_transfer_speed = 400 * 1000 / 8; 2507 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2508 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2509 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2510 cpi->unit_number = sim->unit_number; 2511 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2512 cpi->transport_version = 2; 2513 cpi->protocol = PROTO_SCSI; 2514 cpi->protocol_version = SCSI_REV_2; 2515 2516 cpi->ccb_h.status = CAM_REQ_CMP; 2517 xpt_done(ccb); 2518 break; 2519 } 2520 case XPT_GET_TRAN_SETTINGS: 2521 { 2522 struct ccb_trans_settings *cts = &ccb->cts; 2523 struct ccb_trans_settings_scsi *scsi = 2524 &cts->proto_specific.scsi; 2525 struct ccb_trans_settings_spi *spi = 2526 &cts->xport_specific.spi; 2527 2528 cts->protocol = PROTO_SCSI; 2529 cts->protocol_version = SCSI_REV_2; 2530 cts->transport = XPORT_SPI; /* should have a FireWire */ 2531 cts->transport_version = 2; 2532 spi->valid = CTS_SPI_VALID_DISC; 2533 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2534 scsi->valid = CTS_SCSI_VALID_TQ; 2535 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2536 SBP_DEBUG(1) 2537 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2538 device_get_nameunit(sbp->fd.dev), 2539 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2540 END_DEBUG 2541 cts->ccb_h.status = CAM_REQ_CMP; 2542 xpt_done(ccb); 2543 break; 2544 } 2545 case XPT_ABORT: 2546 ccb->ccb_h.status = CAM_UA_ABORT; 2547 xpt_done(ccb); 2548 break; 2549 case XPT_SET_TRAN_SETTINGS: 2550 /* XXX */ 2551 default: 2552 ccb->ccb_h.status = CAM_REQ_INVALID; 2553 xpt_done(ccb); 2554 break; 2555 } 2556 return; 2557 } 2558 2559 static void 2560 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2561 { 2562 int i; 2563 struct sbp_ocb *ocb; 2564 struct sbp_ocb *prev; 2565 bus_dma_segment_t *s; 2566 2567 if (error) 2568 printf("sbp_execute_ocb: error=%d\n", error); 2569 2570 ocb = (struct sbp_ocb *)arg; 2571 2572 SBP_DEBUG(2) 2573 printf("sbp_execute_ocb: seg %d", seg); 2574 for (i = 0; i < seg; i++) 2575 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2576 (uintmax_t)segments[i].ds_len); 2577 printf("\n"); 2578 END_DEBUG 2579 2580 if (seg == 1) { 2581 /* direct pointer */ 2582 s = &segments[0]; 2583 if (s->ds_len > SBP_SEG_MAX) 2584 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2585 ocb->orb[3] = htonl(s->ds_addr); 2586 ocb->orb[4] |= htonl(s->ds_len); 2587 } else if (seg > 1) { 2588 /* page table */ 2589 for (i = 0; i < seg; i++) { 2590 s = &segments[i]; 2591 SBP_DEBUG(0) 2592 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2593 if (s->ds_len < 16) 2594 printf("sbp_execute_ocb: warning, " 2595 "segment length(%zd) is less than 16." 2596 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2597 END_DEBUG 2598 if (s->ds_len > SBP_SEG_MAX) 2599 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2600 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2601 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2602 } 2603 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2604 } 2605 2606 if (seg > 0) 2607 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2608 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2609 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2610 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2611 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2612 if (use_doorbell) { 2613 if (prev == NULL) { 2614 if (ocb->sdev->last_ocb != NULL) 2615 sbp_doorbell(ocb->sdev); 2616 else 2617 sbp_orb_pointer(ocb->sdev, ocb); 2618 } 2619 } else { 2620 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2621 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2622 sbp_orb_pointer(ocb->sdev, ocb); 2623 } 2624 } 2625 } 2626 2627 static void 2628 sbp_poll(struct cam_sim *sim) 2629 { 2630 struct sbp_softc *sbp; 2631 struct firewire_comm *fc; 2632 2633 sbp = cam_sim_softc(sim); 2634 fc = sbp->fd.fc; 2635 2636 fc->poll(fc, 0, -1); 2637 2638 return; 2639 } 2640 2641 static struct sbp_ocb * 2642 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2643 { 2644 struct sbp_ocb *ocb; 2645 struct sbp_ocb *next; 2646 int order = 0; 2647 2648 SBP_DEBUG(1) 2649 device_printf(sdev->target->sbp->fd.dev, 2650 "%s:%s 0x%08x src %d\n", 2651 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2652 END_DEBUG 2653 SBP_LOCK_ASSERT(sdev->target->sbp); 2654 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2655 if (OCB_MATCH(ocb, sbp_status)) { 2656 /* found */ 2657 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2658 if (ocb->ccb != NULL) 2659 callout_stop(&ocb->timer); 2660 if (ntohl(ocb->orb[4]) & 0xffff) { 2661 bus_dmamap_sync(sdev->target->sbp->dmat, 2662 ocb->dmamap, 2663 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2664 BUS_DMASYNC_POSTREAD : 2665 BUS_DMASYNC_POSTWRITE); 2666 bus_dmamap_unload(sdev->target->sbp->dmat, 2667 ocb->dmamap); 2668 } 2669 if (!use_doorbell) { 2670 if (sbp_status->src == SRC_NO_NEXT) { 2671 if (next != NULL) 2672 sbp_orb_pointer(sdev, next); 2673 else if (order > 0) { 2674 /* 2675 * Unordered execution 2676 * We need to send pointer for 2677 * next ORB 2678 */ 2679 sdev->flags |= ORB_LINK_DEAD; 2680 } 2681 } 2682 } else { 2683 /* 2684 * XXX this is not correct for unordered 2685 * execution. 2686 */ 2687 if (sdev->last_ocb != NULL) { 2688 sbp_free_ocb(sdev, sdev->last_ocb); 2689 } 2690 sdev->last_ocb = ocb; 2691 if (next != NULL && 2692 sbp_status->src == SRC_NO_NEXT) 2693 sbp_doorbell(sdev); 2694 } 2695 break; 2696 } else 2697 order++; 2698 } 2699 SBP_DEBUG(0) 2700 if (ocb && order > 0) { 2701 device_printf(sdev->target->sbp->fd.dev, 2702 "%s:%s unordered execution order:%d\n", 2703 __func__, sdev->bustgtlun, order); 2704 } 2705 END_DEBUG 2706 return (ocb); 2707 } 2708 2709 static struct sbp_ocb * 2710 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2711 { 2712 struct sbp_ocb *prev, *prev2; 2713 2714 SBP_LOCK_ASSERT(sdev->target->sbp); 2715 SBP_DEBUG(1) 2716 device_printf(sdev->target->sbp->fd.dev, 2717 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2718 END_DEBUG 2719 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2720 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2721 2722 if (ocb->ccb != NULL) { 2723 callout_reset_sbt(&ocb->timer, 2724 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2725 ocb, 0); 2726 } 2727 2728 if (use_doorbell && prev == NULL) 2729 prev2 = sdev->last_ocb; 2730 2731 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2732 SBP_DEBUG(1) 2733 printf("linking chain 0x%jx -> 0x%jx\n", 2734 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2735 END_DEBUG 2736 /* 2737 * Suppress compiler optimization so that orb[1] must be written first. 2738 * XXX We may need an explicit memory barrier for other architectures 2739 * other than i386/amd64. 2740 */ 2741 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2742 *(volatile uint32_t *)&prev2->orb[0] = 0; 2743 } 2744 2745 return prev; 2746 } 2747 2748 static struct sbp_ocb * 2749 sbp_get_ocb(struct sbp_dev *sdev) 2750 { 2751 struct sbp_ocb *ocb; 2752 2753 SBP_LOCK_ASSERT(sdev->target->sbp); 2754 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2755 if (ocb == NULL) { 2756 sdev->flags |= ORB_SHORTAGE; 2757 printf("ocb shortage!!!\n"); 2758 return NULL; 2759 } 2760 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2761 ocb->ccb = NULL; 2762 return (ocb); 2763 } 2764 2765 static void 2766 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2767 { 2768 ocb->flags = 0; 2769 ocb->ccb = NULL; 2770 2771 SBP_LOCK_ASSERT(sdev->target->sbp); 2772 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2773 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2774 int count; 2775 2776 sdev->flags &= ~ORB_SHORTAGE; 2777 count = sdev->freeze; 2778 sdev->freeze = 0; 2779 xpt_release_devq(sdev->path, count, TRUE); 2780 } 2781 } 2782 2783 static void 2784 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2785 { 2786 struct sbp_dev *sdev; 2787 2788 sdev = ocb->sdev; 2789 SBP_LOCK_ASSERT(sdev->target->sbp); 2790 SBP_DEBUG(0) 2791 device_printf(sdev->target->sbp->fd.dev, 2792 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2793 END_DEBUG 2794 SBP_DEBUG(1) 2795 if (ocb->ccb != NULL) 2796 sbp_print_scsi_cmd(ocb); 2797 END_DEBUG 2798 if (ntohl(ocb->orb[4]) & 0xffff) { 2799 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2800 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2801 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2802 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2803 } 2804 if (ocb->ccb != NULL) { 2805 callout_stop(&ocb->timer); 2806 ocb->ccb->ccb_h.status = status; 2807 xpt_done(ocb->ccb); 2808 } 2809 sbp_free_ocb(sdev, ocb); 2810 } 2811 2812 static void 2813 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2814 { 2815 struct sbp_ocb *ocb, *next; 2816 STAILQ_HEAD(, sbp_ocb) temp; 2817 2818 STAILQ_INIT(&temp); 2819 SBP_LOCK_ASSERT(sdev->target->sbp); 2820 STAILQ_CONCAT(&temp, &sdev->ocbs); 2821 STAILQ_INIT(&sdev->ocbs); 2822 2823 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2824 sbp_abort_ocb(ocb, status); 2825 } 2826 if (sdev->last_ocb != NULL) { 2827 sbp_free_ocb(sdev, sdev->last_ocb); 2828 sdev->last_ocb = NULL; 2829 } 2830 } 2831 2832 static devclass_t sbp_devclass; 2833 2834 static device_method_t sbp_methods[] = { 2835 /* device interface */ 2836 DEVMETHOD(device_identify, sbp_identify), 2837 DEVMETHOD(device_probe, sbp_probe), 2838 DEVMETHOD(device_attach, sbp_attach), 2839 DEVMETHOD(device_detach, sbp_detach), 2840 DEVMETHOD(device_shutdown, sbp_shutdown), 2841 2842 { 0, 0 } 2843 }; 2844 2845 static driver_t sbp_driver = { 2846 "sbp", 2847 sbp_methods, 2848 sizeof(struct sbp_softc), 2849 }; 2850 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2851 MODULE_VERSION(sbp, 1); 2852 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2853 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2854