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, 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 #ifdef __sparc64__ /* iommu */ 138 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 139 #else 140 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 141 #endif 142 struct sbp_ocb { 143 STAILQ_ENTRY(sbp_ocb) ocb; 144 union ccb *ccb; 145 bus_addr_t bus_addr; 146 uint32_t orb[8]; 147 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 148 struct ind_ptr ind_ptr[SBP_IND_MAX]; 149 struct sbp_dev *sdev; 150 int flags; /* XXX should be removed */ 151 bus_dmamap_t dmamap; 152 struct callout timer; 153 }; 154 155 #define OCB_ACT_MGM 0 156 #define OCB_ACT_CMD 1 157 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 158 159 struct sbp_dev { 160 #define SBP_DEV_RESET 0 /* accept login */ 161 #define SBP_DEV_LOGIN 1 /* to login */ 162 #if 0 163 #define SBP_DEV_RECONN 2 /* to reconnect */ 164 #endif 165 #define SBP_DEV_TOATTACH 3 /* to attach */ 166 #define SBP_DEV_PROBE 4 /* scan lun */ 167 #define SBP_DEV_ATTACHED 5 /* in operation */ 168 #define SBP_DEV_DEAD 6 /* unavailable unit */ 169 #define SBP_DEV_RETRY 7 /* unavailable unit */ 170 uint8_t status:4, 171 timeout:4; 172 uint8_t type; 173 uint16_t lun_id; 174 uint16_t freeze; 175 #define ORB_LINK_DEAD (1 << 0) 176 #define VALID_LUN (1 << 1) 177 #define ORB_POINTER_ACTIVE (1 << 2) 178 #define ORB_POINTER_NEED (1 << 3) 179 #define ORB_DOORBELL_ACTIVE (1 << 4) 180 #define ORB_DOORBELL_NEED (1 << 5) 181 #define ORB_SHORTAGE (1 << 6) 182 uint16_t flags; 183 struct cam_path *path; 184 struct sbp_target *target; 185 struct fwdma_alloc dma; 186 struct sbp_login_res *login; 187 struct callout login_callout; 188 struct sbp_ocb *ocb; 189 STAILQ_HEAD(, sbp_ocb) ocbs; 190 STAILQ_HEAD(, sbp_ocb) free_ocbs; 191 struct sbp_ocb *last_ocb; 192 char vendor[32]; 193 char product[32]; 194 char revision[10]; 195 char bustgtlun[32]; 196 }; 197 198 struct sbp_target { 199 int target_id; 200 int num_lun; 201 struct sbp_dev **luns; 202 struct sbp_softc *sbp; 203 struct fw_device *fwdev; 204 uint32_t mgm_hi, mgm_lo; 205 struct sbp_ocb *mgm_ocb_cur; 206 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 207 struct callout mgm_ocb_timeout; 208 struct callout scan_callout; 209 STAILQ_HEAD(, fw_xfer) xferlist; 210 int n_xfer; 211 }; 212 213 struct sbp_softc { 214 struct firewire_dev_comm fd; 215 struct cam_sim *sim; 216 struct cam_path *path; 217 struct sbp_target targets[SBP_NUM_TARGETS]; 218 struct fw_bind fwb; 219 bus_dma_tag_t dmat; 220 struct timeval last_busreset; 221 #define SIMQ_FREEZED 1 222 int flags; 223 struct mtx mtx; 224 }; 225 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 226 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 227 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED) 228 229 static void sbp_post_explore (void *); 230 static void sbp_recv (struct fw_xfer *); 231 static void sbp_mgm_callback (struct fw_xfer *); 232 #if 0 233 static void sbp_cmd_callback (struct fw_xfer *); 234 #endif 235 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 236 static void sbp_doorbell(struct sbp_dev *); 237 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 238 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 239 static void sbp_abort_ocb (struct sbp_ocb *, int); 240 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 241 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 242 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 243 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 244 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 245 static void sbp_cam_detach_sdev(struct sbp_dev *); 246 static void sbp_free_sdev(struct sbp_dev *); 247 static void sbp_cam_detach_target (struct sbp_target *); 248 static void sbp_free_target (struct sbp_target *); 249 static void sbp_mgm_timeout (void *arg); 250 static void sbp_timeout (void *arg); 251 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 252 253 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 254 255 /* cam related functions */ 256 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 257 static void sbp_poll(struct cam_sim *sim); 258 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 259 static void sbp_cam_scan_target(void *arg); 260 261 static char *orb_status0[] = { 262 /* 0 */ "No additional information to report", 263 /* 1 */ "Request type not supported", 264 /* 2 */ "Speed not supported", 265 /* 3 */ "Page size not supported", 266 /* 4 */ "Access denied", 267 /* 5 */ "Logical unit not supported", 268 /* 6 */ "Maximum payload too small", 269 /* 7 */ "Reserved for future standardization", 270 /* 8 */ "Resources unavailable", 271 /* 9 */ "Function rejected", 272 /* A */ "Login ID not recognized", 273 /* B */ "Dummy ORB completed", 274 /* C */ "Request aborted", 275 /* FF */ "Unspecified error" 276 #define MAX_ORB_STATUS0 0xd 277 }; 278 279 static char *orb_status1_object[] = { 280 /* 0 */ "Operation request block (ORB)", 281 /* 1 */ "Data buffer", 282 /* 2 */ "Page table", 283 /* 3 */ "Unable to specify" 284 }; 285 286 static char *orb_status1_serial_bus_error[] = { 287 /* 0 */ "Missing acknowledge", 288 /* 1 */ "Reserved; not to be used", 289 /* 2 */ "Time-out error", 290 /* 3 */ "Reserved; not to be used", 291 /* 4 */ "Busy retry limit exceeded(X)", 292 /* 5 */ "Busy retry limit exceeded(A)", 293 /* 6 */ "Busy retry limit exceeded(B)", 294 /* 7 */ "Reserved for future standardization", 295 /* 8 */ "Reserved for future standardization", 296 /* 9 */ "Reserved for future standardization", 297 /* A */ "Reserved for future standardization", 298 /* B */ "Tardy retry limit exceeded", 299 /* C */ "Conflict error", 300 /* D */ "Data error", 301 /* E */ "Type error", 302 /* F */ "Address error" 303 }; 304 305 static void 306 sbp_identify(driver_t *driver, device_t parent) 307 { 308 SBP_DEBUG(0) 309 printf("sbp_identify\n"); 310 END_DEBUG 311 312 if (device_find_child(parent, "sbp", -1) == NULL) 313 BUS_ADD_CHILD(parent, 0, "sbp", -1); 314 } 315 316 /* 317 * sbp_probe() 318 */ 319 static int 320 sbp_probe(device_t dev) 321 { 322 323 SBP_DEBUG(0) 324 printf("sbp_probe\n"); 325 END_DEBUG 326 327 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 328 329 #if 0 330 if (bootverbose) 331 debug = bootverbose; 332 #endif 333 334 return (0); 335 } 336 337 /* 338 * Display device characteristics on the console 339 */ 340 static void 341 sbp_show_sdev_info(struct sbp_dev *sdev) 342 { 343 struct fw_device *fwdev; 344 345 fwdev = sdev->target->fwdev; 346 device_printf(sdev->target->sbp->fd.dev, 347 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 348 "speed:%d maxrec:%d\n", 349 __func__, 350 sdev->bustgtlun, 351 (sdev->type & 0x40) >> 6, 352 (sdev->type & 0x1f), 353 fwdev->eui.hi, 354 fwdev->eui.lo, 355 fwdev->dst, 356 fwdev->speed, 357 fwdev->maxrec); 358 359 device_printf(sdev->target->sbp->fd.dev, 360 "%s: %s '%s' '%s' '%s'\n", 361 __func__, 362 sdev->bustgtlun, 363 sdev->vendor, 364 sdev->product, 365 sdev->revision); 366 } 367 368 static struct { 369 int bus; 370 int target; 371 struct fw_eui64 eui; 372 } wired[] = { 373 /* Bus Target EUI64 */ 374 #if 0 375 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 376 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 377 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 378 #endif 379 {-1, -1, {0,0}} 380 }; 381 382 static int 383 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 384 { 385 int bus, i, target=-1; 386 char w[SBP_NUM_TARGETS]; 387 388 bzero(w, sizeof(w)); 389 bus = device_get_unit(sbp->fd.dev); 390 391 /* XXX wired-down configuration should be gotten from 392 tunable or device hint */ 393 for (i = 0; wired[i].bus >= 0; i++) { 394 if (wired[i].bus == bus) { 395 w[wired[i].target] = 1; 396 if (wired[i].eui.hi == fwdev->eui.hi && 397 wired[i].eui.lo == fwdev->eui.lo) 398 target = wired[i].target; 399 } 400 } 401 if (target >= 0) { 402 if (target < SBP_NUM_TARGETS && 403 sbp->targets[target].fwdev == NULL) 404 return (target); 405 device_printf(sbp->fd.dev, 406 "target %d is not free for %08x:%08x\n", 407 target, fwdev->eui.hi, fwdev->eui.lo); 408 target = -1; 409 } 410 /* non-wired target */ 411 for (i = 0; i < SBP_NUM_TARGETS; i++) 412 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 413 target = i; 414 break; 415 } 416 417 return target; 418 } 419 420 static void 421 sbp_alloc_lun(struct sbp_target *target) 422 { 423 struct crom_context cc; 424 struct csrreg *reg; 425 struct sbp_dev *sdev, **newluns; 426 struct sbp_softc *sbp; 427 int maxlun, lun, i; 428 429 sbp = target->sbp; 430 crom_init_context(&cc, target->fwdev->csrrom); 431 /* XXX shoud parse appropriate unit directories only */ 432 maxlun = -1; 433 while (cc.depth >= 0) { 434 reg = crom_search_key(&cc, CROM_LUN); 435 if (reg == NULL) 436 break; 437 lun = reg->val & 0xffff; 438 SBP_DEBUG(0) 439 printf("target %d lun %d found\n", target->target_id, lun); 440 END_DEBUG 441 if (maxlun < lun) 442 maxlun = lun; 443 crom_next(&cc); 444 } 445 if (maxlun < 0) 446 device_printf(target->sbp->fd.dev, "%d no LUN found\n", 447 target->target_id); 448 449 maxlun++; 450 if (maxlun >= SBP_NUM_LUNS) 451 maxlun = SBP_NUM_LUNS; 452 453 /* Invalidiate stale devices */ 454 for (lun = 0; lun < target->num_lun; lun++) { 455 sdev = target->luns[lun]; 456 if (sdev == NULL) 457 continue; 458 sdev->flags &= ~VALID_LUN; 459 if (lun >= maxlun) { 460 /* lost device */ 461 sbp_cam_detach_sdev(sdev); 462 sbp_free_sdev(sdev); 463 target->luns[lun] = NULL; 464 } 465 } 466 467 /* Reallocate */ 468 if (maxlun != target->num_lun) { 469 newluns = (struct sbp_dev **) realloc(target->luns, 470 sizeof(struct sbp_dev *) * maxlun, 471 M_SBP, M_NOWAIT | M_ZERO); 472 473 if (newluns == NULL) { 474 printf("%s: realloc failed\n", __func__); 475 newluns = target->luns; 476 maxlun = target->num_lun; 477 } 478 479 /* 480 * We must zero the extended region for the case 481 * realloc() doesn't allocate new buffer. 482 */ 483 if (maxlun > target->num_lun) 484 bzero(&newluns[target->num_lun], 485 sizeof(struct sbp_dev *) * 486 (maxlun - target->num_lun)); 487 488 target->luns = newluns; 489 target->num_lun = maxlun; 490 } 491 492 crom_init_context(&cc, target->fwdev->csrrom); 493 while (cc.depth >= 0) { 494 int new = 0; 495 496 reg = crom_search_key(&cc, CROM_LUN); 497 if (reg == NULL) 498 break; 499 lun = reg->val & 0xffff; 500 if (lun >= SBP_NUM_LUNS) { 501 printf("too large lun %d\n", lun); 502 goto next; 503 } 504 505 sdev = target->luns[lun]; 506 if (sdev == NULL) { 507 sdev = malloc(sizeof(struct sbp_dev), 508 M_SBP, M_NOWAIT | M_ZERO); 509 if (sdev == NULL) { 510 printf("%s: malloc failed\n", __func__); 511 goto next; 512 } 513 target->luns[lun] = sdev; 514 sdev->lun_id = lun; 515 sdev->target = target; 516 STAILQ_INIT(&sdev->ocbs); 517 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); 518 sdev->status = SBP_DEV_RESET; 519 new = 1; 520 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 521 device_get_nameunit(sdev->target->sbp->fd.dev), 522 sdev->target->target_id, 523 sdev->lun_id); 524 } 525 sdev->flags |= VALID_LUN; 526 sdev->type = (reg->val & 0xff0000) >> 16; 527 528 if (new == 0) 529 goto next; 530 531 fwdma_malloc(sbp->fd.fc, 532 /* alignment */ sizeof(uint32_t), 533 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 534 BUS_DMA_COHERENT); 535 if (sdev->dma.v_addr == NULL) { 536 printf("%s: dma space allocation failed\n", 537 __func__); 538 free(sdev, M_SBP); 539 target->luns[lun] = NULL; 540 goto next; 541 } 542 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 543 sdev->ocb = (struct sbp_ocb *) 544 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 545 bzero((char *)sdev->ocb, 546 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); 547 548 STAILQ_INIT(&sdev->free_ocbs); 549 for (i = 0; i < SBP_QUEUE_LEN; i++) { 550 struct sbp_ocb *ocb; 551 ocb = &sdev->ocb[i]; 552 ocb->bus_addr = sdev->dma.bus_addr 553 + SBP_LOGIN_SIZE 554 + sizeof(struct sbp_ocb) * i 555 + offsetof(struct sbp_ocb, orb[0]); 556 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 557 printf("sbp_attach: cannot create dmamap\n"); 558 /* XXX */ 559 goto next; 560 } 561 callout_init_mtx(&ocb->timer, &sbp->mtx, 0); 562 SBP_LOCK(sbp); 563 sbp_free_ocb(sdev, ocb); 564 SBP_UNLOCK(sbp); 565 } 566 next: 567 crom_next(&cc); 568 } 569 570 for (lun = 0; lun < target->num_lun; lun++) { 571 sdev = target->luns[lun]; 572 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 573 sbp_cam_detach_sdev(sdev); 574 sbp_free_sdev(sdev); 575 target->luns[lun] = NULL; 576 } 577 } 578 } 579 580 static struct sbp_target * 581 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 582 { 583 int i; 584 struct sbp_target *target; 585 struct crom_context cc; 586 struct csrreg *reg; 587 588 SBP_DEBUG(1) 589 printf("sbp_alloc_target\n"); 590 END_DEBUG 591 i = sbp_new_target(sbp, fwdev); 592 if (i < 0) { 593 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 594 return NULL; 595 } 596 /* new target */ 597 target = &sbp->targets[i]; 598 target->fwdev = fwdev; 599 target->target_id = i; 600 /* XXX we may want to reload mgm port after each bus reset */ 601 /* XXX there might be multiple management agents */ 602 crom_init_context(&cc, target->fwdev->csrrom); 603 reg = crom_search_key(&cc, CROM_MGM); 604 if (reg == NULL || reg->val == 0) { 605 printf("NULL management address\n"); 606 target->fwdev = NULL; 607 return NULL; 608 } 609 target->mgm_hi = 0xffff; 610 target->mgm_lo = 0xf0000000 | (reg->val << 2); 611 target->mgm_ocb_cur = NULL; 612 SBP_DEBUG(1) 613 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 614 END_DEBUG 615 STAILQ_INIT(&target->xferlist); 616 target->n_xfer = 0; 617 STAILQ_INIT(&target->mgm_ocb_queue); 618 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0); 619 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0); 620 621 target->luns = NULL; 622 target->num_lun = 0; 623 return target; 624 } 625 626 static void 627 sbp_probe_lun(struct sbp_dev *sdev) 628 { 629 struct fw_device *fwdev; 630 struct crom_context c, *cc = &c; 631 struct csrreg *reg; 632 633 bzero(sdev->vendor, sizeof(sdev->vendor)); 634 bzero(sdev->product, sizeof(sdev->product)); 635 636 fwdev = sdev->target->fwdev; 637 crom_init_context(cc, fwdev->csrrom); 638 /* get vendor string */ 639 crom_search_key(cc, CSRKEY_VENDOR); 640 crom_next(cc); 641 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 642 /* skip to the unit directory for SBP-2 */ 643 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 644 if (reg->val == CSRVAL_T10SBP2) 645 break; 646 crom_next(cc); 647 } 648 /* get firmware revision */ 649 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 650 if (reg != NULL) 651 snprintf(sdev->revision, sizeof(sdev->revision), 652 "%06x", reg->val); 653 /* get product string */ 654 crom_search_key(cc, CSRKEY_MODEL); 655 crom_next(cc); 656 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 657 } 658 659 static void 660 sbp_login_callout(void *arg) 661 { 662 struct sbp_dev *sdev = (struct sbp_dev *)arg; 663 SBP_LOCK_ASSERT(sdev->target->sbp); 664 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 665 } 666 667 static void 668 sbp_login(struct sbp_dev *sdev) 669 { 670 struct timeval delta; 671 struct timeval t; 672 int ticks = 0; 673 674 microtime(&delta); 675 timevalsub(&delta, &sdev->target->sbp->last_busreset); 676 t.tv_sec = login_delay / 1000; 677 t.tv_usec = (login_delay % 1000) * 1000; 678 timevalsub(&t, &delta); 679 if (t.tv_sec >= 0 && t.tv_usec > 0) 680 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 681 SBP_DEBUG(0) 682 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 683 (intmax_t)t.tv_sec, t.tv_usec, ticks); 684 END_DEBUG 685 callout_reset(&sdev->login_callout, ticks, 686 sbp_login_callout, (void *)(sdev)); 687 } 688 689 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 690 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 691 692 static void 693 sbp_probe_target(struct sbp_target *target) 694 { 695 struct sbp_softc *sbp = target->sbp; 696 struct sbp_dev *sdev; 697 int i, alive; 698 699 alive = SBP_FWDEV_ALIVE(target->fwdev); 700 SBP_DEBUG(1) 701 device_printf(sbp->fd.dev, "%s %d%salive\n", 702 __func__, target->target_id, 703 (!alive) ? " not " : ""); 704 END_DEBUG 705 706 sbp_alloc_lun(target); 707 708 /* XXX untimeout mgm_ocb and dequeue */ 709 for (i=0; i < target->num_lun; i++) { 710 sdev = target->luns[i]; 711 if (sdev == NULL) 712 continue; 713 if (alive && (sdev->status != SBP_DEV_DEAD)) { 714 if (sdev->path != NULL) { 715 xpt_freeze_devq(sdev->path, 1); 716 sdev->freeze++; 717 } 718 sbp_probe_lun(sdev); 719 sbp_show_sdev_info(sdev); 720 721 SBP_LOCK(sbp); 722 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 723 SBP_UNLOCK(sbp); 724 switch (sdev->status) { 725 case SBP_DEV_RESET: 726 /* new or revived target */ 727 if (auto_login) 728 sbp_login(sdev); 729 break; 730 case SBP_DEV_TOATTACH: 731 case SBP_DEV_PROBE: 732 case SBP_DEV_ATTACHED: 733 case SBP_DEV_RETRY: 734 default: 735 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 736 break; 737 } 738 } else { 739 switch (sdev->status) { 740 case SBP_DEV_ATTACHED: 741 SBP_DEBUG(0) 742 /* the device has gone */ 743 device_printf(sbp->fd.dev, "%s: lost target\n", 744 __func__); 745 END_DEBUG 746 if (sdev->path) { 747 xpt_freeze_devq(sdev->path, 1); 748 sdev->freeze++; 749 } 750 sdev->status = SBP_DEV_RETRY; 751 sbp_cam_detach_sdev(sdev); 752 sbp_free_sdev(sdev); 753 target->luns[i] = NULL; 754 break; 755 case SBP_DEV_PROBE: 756 case SBP_DEV_TOATTACH: 757 sdev->status = SBP_DEV_RESET; 758 break; 759 case SBP_DEV_RETRY: 760 case SBP_DEV_RESET: 761 case SBP_DEV_DEAD: 762 break; 763 } 764 } 765 } 766 } 767 768 static void 769 sbp_post_busreset(void *arg) 770 { 771 struct sbp_softc *sbp; 772 773 sbp = (struct sbp_softc *)arg; 774 SBP_DEBUG(0) 775 printf("sbp_post_busreset\n"); 776 END_DEBUG 777 SBP_LOCK(sbp); 778 if ((sbp->flags & SIMQ_FREEZED) == 0) { 779 xpt_freeze_simq(sbp->sim, /*count*/1); 780 sbp->flags |= SIMQ_FREEZED; 781 } 782 microtime(&sbp->last_busreset); 783 SBP_UNLOCK(sbp); 784 } 785 786 static void 787 sbp_post_explore(void *arg) 788 { 789 struct sbp_softc *sbp = (struct sbp_softc *)arg; 790 struct sbp_target *target; 791 struct fw_device *fwdev; 792 int i, alive; 793 794 SBP_DEBUG(0) 795 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 796 END_DEBUG 797 /* We need physical access */ 798 if (!firewire_phydma_enable) 799 return; 800 801 if (sbp_cold > 0) 802 sbp_cold--; 803 804 SBP_LOCK(sbp); 805 806 /* Garbage Collection */ 807 for (i = 0; i < SBP_NUM_TARGETS; i++) { 808 target = &sbp->targets[i]; 809 if (target->fwdev == NULL) 810 continue; 811 812 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 813 if (target->fwdev == fwdev) 814 break; 815 if (fwdev == NULL) { 816 /* device has removed in lower driver */ 817 sbp_cam_detach_target(target); 818 sbp_free_target(target); 819 } 820 } 821 822 /* traverse device list */ 823 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 824 SBP_DEBUG(0) 825 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 826 __func__, fwdev->eui.hi, fwdev->eui.lo, 827 (fwdev->status != FWDEVATTACHED) ? "not" : "", 828 fwdev->status); 829 END_DEBUG 830 alive = SBP_FWDEV_ALIVE(fwdev); 831 for (i = 0; i < SBP_NUM_TARGETS; i++) { 832 target = &sbp->targets[i]; 833 if (target->fwdev == fwdev) { 834 /* known target */ 835 break; 836 } 837 } 838 if (i == SBP_NUM_TARGETS) { 839 if (alive) { 840 /* new target */ 841 target = sbp_alloc_target(sbp, fwdev); 842 if (target == NULL) 843 continue; 844 } else { 845 continue; 846 } 847 } 848 849 /* 850 * It is safe to drop the lock here as the target is already 851 * reserved, so there should be no contenders for it. 852 * And the target is not yet exposed, so there should not be 853 * any other accesses to it. 854 * Finally, the list being iterated is protected somewhere else. 855 */ 856 SBP_UNLOCK(sbp); 857 sbp_probe_target(target); 858 SBP_LOCK(sbp); 859 if (target->num_lun == 0) 860 sbp_free_target(target); 861 } 862 if ((sbp->flags & SIMQ_FREEZED) != 0) { 863 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 864 sbp->flags &= ~SIMQ_FREEZED; 865 } 866 SBP_UNLOCK(sbp); 867 } 868 869 #if NEED_RESPONSE 870 static void 871 sbp_loginres_callback(struct fw_xfer *xfer) 872 { 873 struct sbp_dev *sdev; 874 sdev = (struct sbp_dev *)xfer->sc; 875 SBP_DEBUG(1) 876 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 877 END_DEBUG 878 /* recycle */ 879 SBP_LOCK(sdev->target->sbp); 880 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 881 SBP_UNLOCK(sdev->target->sbp); 882 return; 883 } 884 #endif 885 886 static __inline void 887 sbp_xfer_free(struct fw_xfer *xfer) 888 { 889 struct sbp_dev *sdev; 890 891 sdev = (struct sbp_dev *)xfer->sc; 892 fw_xfer_unload(xfer); 893 SBP_LOCK_ASSERT(sdev->target->sbp); 894 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 895 } 896 897 static void 898 sbp_reset_start_callback(struct fw_xfer *xfer) 899 { 900 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 901 struct sbp_target *target = sdev->target; 902 int i; 903 904 if (xfer->resp != 0) { 905 device_printf(sdev->target->sbp->fd.dev, 906 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 907 } 908 909 SBP_LOCK(target->sbp); 910 for (i = 0; i < target->num_lun; i++) { 911 tsdev = target->luns[i]; 912 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 913 sbp_login(tsdev); 914 } 915 SBP_UNLOCK(target->sbp); 916 } 917 918 static void 919 sbp_reset_start(struct sbp_dev *sdev) 920 { 921 struct fw_xfer *xfer; 922 struct fw_pkt *fp; 923 924 SBP_DEBUG(0) 925 device_printf(sdev->target->sbp->fd.dev, 926 "%s:%s\n", __func__,sdev->bustgtlun); 927 END_DEBUG 928 929 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 930 xfer->hand = sbp_reset_start_callback; 931 fp = &xfer->send.hdr; 932 fp->mode.wreqq.dest_hi = 0xffff; 933 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 934 fp->mode.wreqq.data = htonl(0xf); 935 fw_asyreq(xfer->fc, -1, xfer); 936 } 937 938 static void 939 sbp_mgm_callback(struct fw_xfer *xfer) 940 { 941 struct sbp_dev *sdev; 942 int resp; 943 944 sdev = (struct sbp_dev *)xfer->sc; 945 946 SBP_DEBUG(1) 947 device_printf(sdev->target->sbp->fd.dev, 948 "%s:%s\n", __func__, sdev->bustgtlun); 949 END_DEBUG 950 resp = xfer->resp; 951 SBP_LOCK(sdev->target->sbp); 952 sbp_xfer_free(xfer); 953 SBP_UNLOCK(sdev->target->sbp); 954 } 955 956 static struct sbp_dev * 957 sbp_next_dev(struct sbp_target *target, int lun) 958 { 959 struct sbp_dev **sdevp; 960 int i; 961 962 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 963 i++, sdevp++) 964 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 965 return (*sdevp); 966 return (NULL); 967 } 968 969 #define SCAN_PRI 1 970 static void 971 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 972 { 973 struct sbp_softc *sbp; 974 struct sbp_target *target; 975 struct sbp_dev *sdev; 976 977 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 978 target = sdev->target; 979 sbp = target->sbp; 980 SBP_LOCK(sbp); 981 SBP_DEBUG(0) 982 device_printf(sbp->fd.dev, 983 "%s:%s\n", __func__, sdev->bustgtlun); 984 END_DEBUG 985 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 986 sdev->status = SBP_DEV_ATTACHED; 987 } else { 988 device_printf(sbp->fd.dev, 989 "%s:%s failed\n", __func__, sdev->bustgtlun); 990 } 991 sdev = sbp_next_dev(target, sdev->lun_id + 1); 992 if (sdev == NULL) { 993 SBP_UNLOCK(sbp); 994 free(ccb, M_SBP); 995 return; 996 } 997 /* reuse ccb */ 998 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 999 ccb->ccb_h.ccb_sdev_ptr = sdev; 1000 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1001 SBP_UNLOCK(sbp); 1002 1003 xpt_action(ccb); 1004 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1005 sdev->freeze = 1; 1006 } 1007 1008 static void 1009 sbp_cam_scan_target(void *arg) 1010 { 1011 struct sbp_target *target = (struct sbp_target *)arg; 1012 struct sbp_dev *sdev; 1013 union ccb *ccb; 1014 1015 SBP_LOCK_ASSERT(target->sbp); 1016 sdev = sbp_next_dev(target, 0); 1017 if (sdev == NULL) { 1018 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1019 target->target_id); 1020 return; 1021 } 1022 SBP_DEBUG(0) 1023 device_printf(sdev->target->sbp->fd.dev, 1024 "%s:%s\n", __func__, sdev->bustgtlun); 1025 END_DEBUG 1026 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1027 if (ccb == NULL) { 1028 printf("sbp_cam_scan_target: malloc failed\n"); 1029 return; 1030 } 1031 SBP_UNLOCK(target->sbp); 1032 1033 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1034 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1035 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1036 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1037 ccb->crcn.flags = CAM_FLAG_NONE; 1038 ccb->ccb_h.ccb_sdev_ptr = sdev; 1039 1040 /* The scan is in progress now. */ 1041 xpt_action(ccb); 1042 1043 SBP_LOCK(target->sbp); 1044 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1045 sdev->freeze = 1; 1046 } 1047 1048 static __inline void 1049 sbp_scan_dev(struct sbp_dev *sdev) 1050 { 1051 sdev->status = SBP_DEV_PROBE; 1052 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, 1053 sbp_cam_scan_target, (void *)sdev->target, 0); 1054 } 1055 1056 static void 1057 sbp_do_attach(struct fw_xfer *xfer) 1058 { 1059 struct sbp_dev *sdev; 1060 struct sbp_target *target; 1061 struct sbp_softc *sbp; 1062 1063 sdev = (struct sbp_dev *)xfer->sc; 1064 target = sdev->target; 1065 sbp = target->sbp; 1066 SBP_LOCK(sbp); 1067 SBP_DEBUG(0) 1068 device_printf(sdev->target->sbp->fd.dev, 1069 "%s:%s\n", __func__, sdev->bustgtlun); 1070 END_DEBUG 1071 sbp_xfer_free(xfer); 1072 1073 if (sdev->path == NULL) 1074 xpt_create_path(&sdev->path, NULL, 1075 cam_sim_path(target->sbp->sim), 1076 target->target_id, sdev->lun_id); 1077 1078 /* 1079 * Let CAM scan the bus if we are in the boot process. 1080 * XXX xpt_scan_bus cannot detect LUN larger than 0 1081 * if LUN 0 doesn't exist. 1082 */ 1083 if (sbp_cold > 0) { 1084 sdev->status = SBP_DEV_ATTACHED; 1085 SBP_UNLOCK(sbp); 1086 return; 1087 } 1088 1089 sbp_scan_dev(sdev); 1090 SBP_UNLOCK(sbp); 1091 } 1092 1093 static void 1094 sbp_agent_reset_callback(struct fw_xfer *xfer) 1095 { 1096 struct sbp_dev *sdev; 1097 1098 sdev = (struct sbp_dev *)xfer->sc; 1099 SBP_DEBUG(1) 1100 device_printf(sdev->target->sbp->fd.dev, 1101 "%s:%s\n", __func__, sdev->bustgtlun); 1102 END_DEBUG 1103 if (xfer->resp != 0) { 1104 device_printf(sdev->target->sbp->fd.dev, 1105 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1106 } 1107 1108 SBP_LOCK(sdev->target->sbp); 1109 sbp_xfer_free(xfer); 1110 if (sdev->path) { 1111 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1112 sdev->freeze = 0; 1113 } 1114 SBP_UNLOCK(sdev->target->sbp); 1115 } 1116 1117 static void 1118 sbp_agent_reset(struct sbp_dev *sdev) 1119 { 1120 struct fw_xfer *xfer; 1121 struct fw_pkt *fp; 1122 1123 SBP_LOCK_ASSERT(sdev->target->sbp); 1124 SBP_DEBUG(0) 1125 device_printf(sdev->target->sbp->fd.dev, 1126 "%s:%s\n", __func__, sdev->bustgtlun); 1127 END_DEBUG 1128 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1129 if (xfer == NULL) 1130 return; 1131 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1132 xfer->hand = sbp_agent_reset_callback; 1133 else 1134 xfer->hand = sbp_do_attach; 1135 fp = &xfer->send.hdr; 1136 fp->mode.wreqq.data = htonl(0xf); 1137 fw_asyreq(xfer->fc, -1, xfer); 1138 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1139 } 1140 1141 static void 1142 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1143 { 1144 struct sbp_dev *sdev; 1145 1146 sdev = (struct sbp_dev *)xfer->sc; 1147 SBP_DEBUG(1) 1148 device_printf(sdev->target->sbp->fd.dev, 1149 "%s:%s\n", __func__, sdev->bustgtlun); 1150 END_DEBUG 1151 SBP_LOCK(sdev->target->sbp); 1152 sbp_xfer_free(xfer); 1153 sbp_agent_reset(sdev); 1154 SBP_UNLOCK(sdev->target->sbp); 1155 } 1156 1157 static void 1158 sbp_busy_timeout(struct sbp_dev *sdev) 1159 { 1160 struct fw_pkt *fp; 1161 struct fw_xfer *xfer; 1162 SBP_DEBUG(0) 1163 device_printf(sdev->target->sbp->fd.dev, 1164 "%s:%s\n", __func__, sdev->bustgtlun); 1165 END_DEBUG 1166 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1167 1168 xfer->hand = sbp_busy_timeout_callback; 1169 fp = &xfer->send.hdr; 1170 fp->mode.wreqq.dest_hi = 0xffff; 1171 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1172 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); 1173 fw_asyreq(xfer->fc, -1, xfer); 1174 } 1175 1176 static void 1177 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1178 { 1179 struct sbp_dev *sdev; 1180 sdev = (struct sbp_dev *)xfer->sc; 1181 1182 SBP_DEBUG(2) 1183 device_printf(sdev->target->sbp->fd.dev, 1184 "%s:%s\n", __func__, sdev->bustgtlun); 1185 END_DEBUG 1186 if (xfer->resp != 0) { 1187 /* XXX */ 1188 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1189 } 1190 SBP_LOCK(sdev->target->sbp); 1191 sbp_xfer_free(xfer); 1192 1193 sdev->flags &= ~ORB_POINTER_ACTIVE; 1194 1195 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1196 struct sbp_ocb *ocb; 1197 1198 sdev->flags &= ~ORB_POINTER_NEED; 1199 ocb = STAILQ_FIRST(&sdev->ocbs); 1200 if (ocb != NULL) 1201 sbp_orb_pointer(sdev, ocb); 1202 } 1203 SBP_UNLOCK(sdev->target->sbp); 1204 return; 1205 } 1206 1207 static void 1208 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1209 { 1210 struct fw_xfer *xfer; 1211 struct fw_pkt *fp; 1212 SBP_DEBUG(1) 1213 device_printf(sdev->target->sbp->fd.dev, 1214 "%s:%s 0x%08x\n", 1215 __func__, sdev->bustgtlun, 1216 (uint32_t)ocb->bus_addr); 1217 END_DEBUG 1218 1219 SBP_LOCK_ASSERT(sdev->target->sbp); 1220 1221 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1222 SBP_DEBUG(0) 1223 printf("%s: orb pointer active\n", __func__); 1224 END_DEBUG 1225 sdev->flags |= ORB_POINTER_NEED; 1226 return; 1227 } 1228 1229 sdev->flags |= ORB_POINTER_ACTIVE; 1230 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1231 if (xfer == NULL) 1232 return; 1233 xfer->hand = sbp_orb_pointer_callback; 1234 1235 fp = &xfer->send.hdr; 1236 fp->mode.wreqb.len = 8; 1237 fp->mode.wreqb.extcode = 0; 1238 xfer->send.payload[0] = 1239 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 1240 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1241 1242 if (fw_asyreq(xfer->fc, -1, xfer) != 0) { 1243 sbp_xfer_free(xfer); 1244 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1245 xpt_done(ocb->ccb); 1246 } 1247 } 1248 1249 static void 1250 sbp_doorbell_callback(struct fw_xfer *xfer) 1251 { 1252 struct sbp_dev *sdev; 1253 sdev = (struct sbp_dev *)xfer->sc; 1254 1255 SBP_DEBUG(1) 1256 device_printf(sdev->target->sbp->fd.dev, 1257 "%s:%s\n", __func__, sdev->bustgtlun); 1258 END_DEBUG 1259 if (xfer->resp != 0) { 1260 /* XXX */ 1261 device_printf(sdev->target->sbp->fd.dev, 1262 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1263 } 1264 SBP_LOCK(sdev->target->sbp); 1265 sbp_xfer_free(xfer); 1266 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1267 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1268 sdev->flags &= ~ORB_DOORBELL_NEED; 1269 sbp_doorbell(sdev); 1270 } 1271 SBP_UNLOCK(sdev->target->sbp); 1272 } 1273 1274 static void 1275 sbp_doorbell(struct sbp_dev *sdev) 1276 { 1277 struct fw_xfer *xfer; 1278 struct fw_pkt *fp; 1279 SBP_DEBUG(1) 1280 device_printf(sdev->target->sbp->fd.dev, 1281 "%s:%s\n", __func__, sdev->bustgtlun); 1282 END_DEBUG 1283 1284 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1285 sdev->flags |= ORB_DOORBELL_NEED; 1286 return; 1287 } 1288 sdev->flags |= ORB_DOORBELL_ACTIVE; 1289 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1290 if (xfer == NULL) 1291 return; 1292 xfer->hand = sbp_doorbell_callback; 1293 fp = &xfer->send.hdr; 1294 fp->mode.wreqq.data = htonl(0xf); 1295 fw_asyreq(xfer->fc, -1, xfer); 1296 } 1297 1298 static struct fw_xfer * 1299 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1300 { 1301 struct fw_xfer *xfer; 1302 struct fw_pkt *fp; 1303 struct sbp_target *target; 1304 int new = 0; 1305 1306 SBP_LOCK_ASSERT(sdev->target->sbp); 1307 1308 target = sdev->target; 1309 xfer = STAILQ_FIRST(&target->xferlist); 1310 if (xfer == NULL) { 1311 if (target->n_xfer > 5 /* XXX */) { 1312 printf("sbp: no more xfer for this target\n"); 1313 return (NULL); 1314 } 1315 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1316 if (xfer == NULL) { 1317 printf("sbp: fw_xfer_alloc_buf failed\n"); 1318 return NULL; 1319 } 1320 target->n_xfer++; 1321 if (debug) 1322 printf("sbp: alloc %d xfer\n", target->n_xfer); 1323 new = 1; 1324 } else { 1325 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1326 } 1327 1328 if (new) { 1329 xfer->recv.pay_len = 0; 1330 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1331 xfer->fc = sdev->target->sbp->fd.fc; 1332 } 1333 1334 if (tcode == FWTCODE_WREQB) 1335 xfer->send.pay_len = 8; 1336 else 1337 xfer->send.pay_len = 0; 1338 1339 xfer->sc = (caddr_t)sdev; 1340 fp = &xfer->send.hdr; 1341 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1342 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1343 fp->mode.wreqq.tlrt = 0; 1344 fp->mode.wreqq.tcode = tcode; 1345 fp->mode.wreqq.pri = 0; 1346 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1347 1348 return xfer; 1349 } 1350 1351 static void 1352 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1353 { 1354 struct fw_xfer *xfer; 1355 struct fw_pkt *fp; 1356 struct sbp_ocb *ocb; 1357 struct sbp_target *target; 1358 int nid; 1359 1360 target = sdev->target; 1361 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1362 1363 SBP_LOCK_ASSERT(target->sbp); 1364 if (func == ORB_FUN_RUNQUEUE) { 1365 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1366 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1367 return; 1368 } 1369 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1370 goto start; 1371 } 1372 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1373 /* XXX */ 1374 return; 1375 } 1376 ocb->flags = OCB_ACT_MGM; 1377 ocb->sdev = sdev; 1378 1379 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1380 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1381 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1382 1383 SBP_DEBUG(0) 1384 device_printf(sdev->target->sbp->fd.dev, 1385 "%s:%s %s\n", 1386 __func__,sdev->bustgtlun, 1387 orb_fun_name[(func >> 16) & 0xf]); 1388 END_DEBUG 1389 switch (func) { 1390 case ORB_FUN_LGI: 1391 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1392 ocb->orb[2] = htonl(nid << 16); 1393 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1394 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1395 if (ex_login) 1396 ocb->orb[4] |= htonl(ORB_EXV); 1397 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1398 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1399 break; 1400 case ORB_FUN_ATA: 1401 ocb->orb[0] = htonl((0 << 16) | 0); 1402 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1403 /* fall through */ 1404 case ORB_FUN_RCN: 1405 case ORB_FUN_LGO: 1406 case ORB_FUN_LUR: 1407 case ORB_FUN_RST: 1408 case ORB_FUN_ATS: 1409 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1410 break; 1411 } 1412 1413 if (target->mgm_ocb_cur != NULL) { 1414 /* there is a standing ORB */ 1415 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1416 return; 1417 } 1418 start: 1419 target->mgm_ocb_cur = ocb; 1420 1421 callout_reset(&target->mgm_ocb_timeout, 5 * hz, 1422 sbp_mgm_timeout, (caddr_t)ocb); 1423 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1424 if (xfer == NULL) { 1425 return; 1426 } 1427 xfer->hand = sbp_mgm_callback; 1428 1429 fp = &xfer->send.hdr; 1430 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1431 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1432 fp->mode.wreqb.len = 8; 1433 fp->mode.wreqb.extcode = 0; 1434 xfer->send.payload[0] = htonl(nid << 16); 1435 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1436 1437 fw_asyreq(xfer->fc, -1, xfer); 1438 } 1439 1440 static void 1441 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1442 { 1443 struct ccb_scsiio *csio; 1444 1445 csio = &ocb->ccb->csio; 1446 printf("%s:%d:%jx XPT_SCSI_IO: " 1447 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1448 ", flags: 0x%02x, " 1449 "%db cmd/%db data/%db sense\n", 1450 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1451 ocb->ccb->ccb_h.target_id, 1452 (uintmax_t)ocb->ccb->ccb_h.target_lun, 1453 csio->cdb_io.cdb_bytes[0], 1454 csio->cdb_io.cdb_bytes[1], 1455 csio->cdb_io.cdb_bytes[2], 1456 csio->cdb_io.cdb_bytes[3], 1457 csio->cdb_io.cdb_bytes[4], 1458 csio->cdb_io.cdb_bytes[5], 1459 csio->cdb_io.cdb_bytes[6], 1460 csio->cdb_io.cdb_bytes[7], 1461 csio->cdb_io.cdb_bytes[8], 1462 csio->cdb_io.cdb_bytes[9], 1463 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1464 csio->cdb_len, csio->dxfer_len, 1465 csio->sense_len); 1466 } 1467 1468 static void 1469 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1470 { 1471 struct sbp_cmd_status *sbp_cmd_status; 1472 struct scsi_sense_data_fixed *sense; 1473 1474 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1475 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1476 1477 SBP_DEBUG(0) 1478 sbp_print_scsi_cmd(ocb); 1479 /* XXX need decode status */ 1480 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1481 ocb->sdev->bustgtlun, 1482 sbp_cmd_status->status, 1483 sbp_cmd_status->sfmt, 1484 sbp_cmd_status->valid, 1485 sbp_cmd_status->s_key, 1486 sbp_cmd_status->s_code, 1487 sbp_cmd_status->s_qlfr, 1488 sbp_status->len); 1489 END_DEBUG 1490 1491 switch (sbp_cmd_status->status) { 1492 case SCSI_STATUS_CHECK_COND: 1493 case SCSI_STATUS_BUSY: 1494 case SCSI_STATUS_CMD_TERMINATED: 1495 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { 1496 sense->error_code = SSD_CURRENT_ERROR; 1497 } else { 1498 sense->error_code = SSD_DEFERRED_ERROR; 1499 } 1500 if (sbp_cmd_status->valid) 1501 sense->error_code |= SSD_ERRCODE_VALID; 1502 sense->flags = sbp_cmd_status->s_key; 1503 if (sbp_cmd_status->mark) 1504 sense->flags |= SSD_FILEMARK; 1505 if (sbp_cmd_status->eom) 1506 sense->flags |= SSD_EOM; 1507 if (sbp_cmd_status->ill_len) 1508 sense->flags |= SSD_ILI; 1509 1510 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1511 1512 if (sbp_status->len <= 1) 1513 /* XXX not scsi status. shouldn't be happened */ 1514 sense->extra_len = 0; 1515 else if (sbp_status->len <= 4) 1516 /* add_sense_code(_qual), info, cmd_spec_info */ 1517 sense->extra_len = 6; 1518 else 1519 /* fru, sense_key_spec */ 1520 sense->extra_len = 10; 1521 1522 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1523 1524 sense->add_sense_code = sbp_cmd_status->s_code; 1525 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1526 sense->fru = sbp_cmd_status->fru; 1527 1528 bcopy(&sbp_cmd_status->s_keydep[0], 1529 &sense->sense_key_spec[0], 3); 1530 1531 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1532 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1533 | CAM_AUTOSNS_VALID; 1534 /* 1535 { 1536 uint8_t j, *tmp; 1537 tmp = sense; 1538 for (j = 0; j < 32; j += 8) { 1539 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1540 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], 1541 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); 1542 } 1543 1544 } 1545 */ 1546 break; 1547 default: 1548 device_printf(ocb->sdev->target->sbp->fd.dev, 1549 "%s:%s unknown scsi status 0x%x\n", 1550 __func__, ocb->sdev->bustgtlun, 1551 sbp_cmd_status->status); 1552 } 1553 } 1554 1555 static void 1556 sbp_fix_inq_data(struct sbp_ocb *ocb) 1557 { 1558 union ccb *ccb; 1559 struct sbp_dev *sdev; 1560 struct scsi_inquiry_data *inq; 1561 1562 ccb = ocb->ccb; 1563 sdev = ocb->sdev; 1564 1565 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1566 return; 1567 SBP_DEBUG(1) 1568 device_printf(sdev->target->sbp->fd.dev, 1569 "%s:%s\n", __func__, sdev->bustgtlun); 1570 END_DEBUG 1571 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1572 switch (SID_TYPE(inq)) { 1573 case T_DIRECT: 1574 #if 0 1575 /* 1576 * XXX Convert Direct Access device to RBC. 1577 * I've never seen FireWire DA devices which support READ_6. 1578 */ 1579 if (SID_TYPE(inq) == T_DIRECT) 1580 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1581 #endif 1582 /* fall through */ 1583 case T_RBC: 1584 /* 1585 * Override vendor/product/revision information. 1586 * Some devices sometimes return strange strings. 1587 */ 1588 #if 1 1589 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1590 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1591 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); 1592 #endif 1593 break; 1594 } 1595 /* 1596 * Force to enable/disable tagged queuing. 1597 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1598 */ 1599 if (sbp_tags > 0) 1600 inq->flags |= SID_CmdQue; 1601 else if (sbp_tags < 0) 1602 inq->flags &= ~SID_CmdQue; 1603 1604 } 1605 1606 static void 1607 sbp_recv1(struct fw_xfer *xfer) 1608 { 1609 struct fw_pkt *rfp; 1610 #if NEED_RESPONSE 1611 struct fw_pkt *sfp; 1612 #endif 1613 struct sbp_softc *sbp; 1614 struct sbp_dev *sdev; 1615 struct sbp_ocb *ocb; 1616 struct sbp_login_res *login_res = NULL; 1617 struct sbp_status *sbp_status; 1618 struct sbp_target *target; 1619 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1620 uint32_t addr; 1621 /* 1622 uint32_t *ld; 1623 ld = xfer->recv.buf; 1624 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1625 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1626 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1627 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1628 */ 1629 sbp = (struct sbp_softc *)xfer->sc; 1630 SBP_LOCK_ASSERT(sbp); 1631 if (xfer->resp != 0) { 1632 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1633 goto done0; 1634 } 1635 if (xfer->recv.payload == NULL) { 1636 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1637 goto done0; 1638 } 1639 rfp = &xfer->recv.hdr; 1640 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { 1641 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1642 goto done0; 1643 } 1644 sbp_status = (struct sbp_status *)xfer->recv.payload; 1645 addr = rfp->mode.wreqb.dest_lo; 1646 SBP_DEBUG(2) 1647 printf("received address 0x%x\n", addr); 1648 END_DEBUG 1649 t = SBP_ADDR2TRG(addr); 1650 if (t >= SBP_NUM_TARGETS) { 1651 device_printf(sbp->fd.dev, 1652 "sbp_recv1: invalid target %d\n", t); 1653 goto done0; 1654 } 1655 target = &sbp->targets[t]; 1656 l = SBP_ADDR2LUN(addr); 1657 if (l >= target->num_lun || target->luns[l] == NULL) { 1658 device_printf(sbp->fd.dev, 1659 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1660 goto done0; 1661 } 1662 sdev = target->luns[l]; 1663 1664 ocb = NULL; 1665 switch (sbp_status->src) { 1666 case 0: 1667 case 1: 1668 /* check mgm_ocb_cur first */ 1669 ocb = target->mgm_ocb_cur; 1670 if (ocb != NULL) { 1671 if (OCB_MATCH(ocb, sbp_status)) { 1672 callout_stop(&target->mgm_ocb_timeout); 1673 target->mgm_ocb_cur = NULL; 1674 break; 1675 } 1676 } 1677 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1678 if (ocb == NULL) { 1679 device_printf(sdev->target->sbp->fd.dev, 1680 "%s:%s No ocb(%x) on the queue\n", 1681 __func__,sdev->bustgtlun, 1682 ntohl(sbp_status->orb_lo)); 1683 } 1684 break; 1685 case 2: 1686 /* unsolicit */ 1687 device_printf(sdev->target->sbp->fd.dev, 1688 "%s:%s unsolicit status received\n", 1689 __func__, sdev->bustgtlun); 1690 break; 1691 default: 1692 device_printf(sdev->target->sbp->fd.dev, 1693 "%s:%s unknown sbp_status->src\n", 1694 __func__, sdev->bustgtlun); 1695 } 1696 1697 status_valid0 = (sbp_status->src < 2 1698 && sbp_status->resp == ORB_RES_CMPL 1699 && sbp_status->dead == 0); 1700 status_valid = (status_valid0 && sbp_status->status == 0); 1701 1702 if (!status_valid0 || debug > 2) { 1703 int status; 1704 SBP_DEBUG(0) 1705 device_printf(sdev->target->sbp->fd.dev, 1706 "%s:%s ORB status src:%x resp:%x dead:%x" 1707 " len:%x stat:%x orb:%x%08x\n", 1708 __func__, sdev->bustgtlun, 1709 sbp_status->src, sbp_status->resp, sbp_status->dead, 1710 sbp_status->len, sbp_status->status, 1711 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1712 END_DEBUG 1713 device_printf(sdev->target->sbp->fd.dev, 1714 "%s\n", sdev->bustgtlun); 1715 status = sbp_status->status; 1716 switch (sbp_status->resp) { 1717 case 0: 1718 if (status > MAX_ORB_STATUS0) 1719 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1720 else 1721 printf("%s\n", orb_status0[status]); 1722 break; 1723 case 1: 1724 printf("Obj: %s, Error: %s\n", 1725 orb_status1_object[(status >> 6) & 3], 1726 orb_status1_serial_bus_error[status & 0xf]); 1727 break; 1728 case 2: 1729 printf("Illegal request\n"); 1730 break; 1731 case 3: 1732 printf("Vendor dependent\n"); 1733 break; 1734 default: 1735 printf("unknown respose code %d\n", sbp_status->resp); 1736 } 1737 } 1738 1739 /* we have to reset the fetch agent if it's dead */ 1740 if (sbp_status->dead) { 1741 if (sdev->path) { 1742 xpt_freeze_devq(sdev->path, 1); 1743 sdev->freeze++; 1744 } 1745 reset_agent = 1; 1746 } 1747 1748 if (ocb == NULL) 1749 goto done; 1750 1751 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) { 1752 case ORB_FMT_NOP: 1753 break; 1754 case ORB_FMT_VED: 1755 break; 1756 case ORB_FMT_STD: 1757 switch (ocb->flags) { 1758 case OCB_ACT_MGM: 1759 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1760 reset_agent = 0; 1761 switch (orb_fun) { 1762 case ORB_FUN_LGI: 1763 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1764 login_res = sdev->login; 1765 login_res->len = ntohs(login_res->len); 1766 login_res->id = ntohs(login_res->id); 1767 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1768 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1769 if (status_valid) { 1770 SBP_DEBUG(0) 1771 device_printf(sdev->target->sbp->fd.dev, 1772 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1773 __func__, sdev->bustgtlun, 1774 login_res->len, login_res->id, 1775 login_res->cmd_hi, login_res->cmd_lo, 1776 ntohs(login_res->recon_hold)); 1777 END_DEBUG 1778 sbp_busy_timeout(sdev); 1779 } else { 1780 /* forgot logout? */ 1781 device_printf(sdev->target->sbp->fd.dev, 1782 "%s:%s login failed\n", 1783 __func__, sdev->bustgtlun); 1784 sdev->status = SBP_DEV_RESET; 1785 } 1786 break; 1787 case ORB_FUN_RCN: 1788 login_res = sdev->login; 1789 if (status_valid) { 1790 SBP_DEBUG(0) 1791 device_printf(sdev->target->sbp->fd.dev, 1792 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1793 __func__, sdev->bustgtlun, 1794 login_res->len, login_res->id, 1795 login_res->cmd_hi, login_res->cmd_lo); 1796 END_DEBUG 1797 if (sdev->status == SBP_DEV_ATTACHED) 1798 sbp_scan_dev(sdev); 1799 else 1800 sbp_agent_reset(sdev); 1801 } else { 1802 /* reconnection hold time exceed? */ 1803 SBP_DEBUG(0) 1804 device_printf(sdev->target->sbp->fd.dev, 1805 "%s:%s reconnect failed\n", 1806 __func__, sdev->bustgtlun); 1807 END_DEBUG 1808 sbp_login(sdev); 1809 } 1810 break; 1811 case ORB_FUN_LGO: 1812 sdev->status = SBP_DEV_RESET; 1813 break; 1814 case ORB_FUN_RST: 1815 sbp_busy_timeout(sdev); 1816 break; 1817 case ORB_FUN_LUR: 1818 case ORB_FUN_ATA: 1819 case ORB_FUN_ATS: 1820 sbp_agent_reset(sdev); 1821 break; 1822 default: 1823 device_printf(sdev->target->sbp->fd.dev, 1824 "%s:%s unknown function %d\n", 1825 __func__, sdev->bustgtlun, orb_fun); 1826 break; 1827 } 1828 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1829 break; 1830 case OCB_ACT_CMD: 1831 sdev->timeout = 0; 1832 if (ocb->ccb != NULL) { 1833 union ccb *ccb; 1834 1835 ccb = ocb->ccb; 1836 if (sbp_status->len > 1) { 1837 sbp_scsi_status(sbp_status, ocb); 1838 } else { 1839 if (sbp_status->resp != ORB_RES_CMPL) { 1840 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1841 } else { 1842 ccb->ccb_h.status = CAM_REQ_CMP; 1843 } 1844 } 1845 /* fix up inq data */ 1846 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1847 sbp_fix_inq_data(ocb); 1848 xpt_done(ccb); 1849 } 1850 break; 1851 default: 1852 break; 1853 } 1854 } 1855 1856 if (!use_doorbell) 1857 sbp_free_ocb(sdev, ocb); 1858 done: 1859 if (reset_agent) 1860 sbp_agent_reset(sdev); 1861 1862 done0: 1863 xfer->recv.pay_len = SBP_RECV_LEN; 1864 /* The received packet is usually small enough to be stored within 1865 * the buffer. In that case, the controller return ack_complete and 1866 * no respose is necessary. 1867 * 1868 * XXX fwohci.c and firewire.c should inform event_code such as 1869 * ack_complete or ack_pending to upper driver. 1870 */ 1871 #if NEED_RESPONSE 1872 xfer->send.off = 0; 1873 sfp = (struct fw_pkt *)xfer->send.buf; 1874 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1875 xfer->dst = sfp->mode.wres.dst; 1876 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1877 xfer->hand = sbp_loginres_callback; 1878 1879 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1880 sfp->mode.wres.tcode = FWTCODE_WRES; 1881 sfp->mode.wres.rtcode = 0; 1882 sfp->mode.wres.pri = 0; 1883 1884 fw_asyreq(xfer->fc, -1, xfer); 1885 #else 1886 /* recycle */ 1887 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1888 #endif 1889 } 1890 1891 static void 1892 sbp_recv(struct fw_xfer *xfer) 1893 { 1894 struct sbp_softc *sbp; 1895 1896 sbp = (struct sbp_softc *)xfer->sc; 1897 SBP_LOCK(sbp); 1898 sbp_recv1(xfer); 1899 SBP_UNLOCK(sbp); 1900 } 1901 /* 1902 * sbp_attach() 1903 */ 1904 static int 1905 sbp_attach(device_t dev) 1906 { 1907 struct sbp_softc *sbp; 1908 struct cam_devq *devq; 1909 struct firewire_comm *fc; 1910 int i, error; 1911 1912 if (DFLTPHYS > SBP_MAXPHYS) 1913 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1914 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1915 SBP_MAXPHYS / 1024); 1916 1917 if (!firewire_phydma_enable) 1918 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1919 "for SBP over FireWire.\n"); 1920 SBP_DEBUG(0) 1921 printf("sbp_attach (cold=%d)\n", cold); 1922 END_DEBUG 1923 1924 if (cold) 1925 sbp_cold++; 1926 sbp = device_get_softc(dev); 1927 sbp->fd.dev = dev; 1928 sbp->fd.fc = fc = device_get_ivars(dev); 1929 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1930 1931 if (max_speed < 0) 1932 max_speed = fc->speed; 1933 1934 error = bus_dma_tag_create(/*parent*/fc->dmat, 1935 /* XXX shoud be 4 for sane backend? */ 1936 /*alignment*/1, 1937 /*boundary*/0, 1938 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1939 /*highaddr*/BUS_SPACE_MAXADDR, 1940 /*filter*/NULL, /*filterarg*/NULL, 1941 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1942 /*maxsegsz*/SBP_SEG_MAX, 1943 /*flags*/BUS_DMA_ALLOCNOW, 1944 /*lockfunc*/busdma_lock_mutex, 1945 /*lockarg*/&sbp->mtx, 1946 &sbp->dmat); 1947 if (error != 0) { 1948 printf("sbp_attach: Could not allocate DMA tag " 1949 "- error %d\n", error); 1950 return (ENOMEM); 1951 } 1952 1953 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1954 if (devq == NULL) 1955 return (ENXIO); 1956 1957 for (i = 0; i < SBP_NUM_TARGETS; i++) { 1958 sbp->targets[i].fwdev = NULL; 1959 sbp->targets[i].luns = NULL; 1960 sbp->targets[i].sbp = sbp; 1961 } 1962 1963 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1964 device_get_unit(dev), 1965 &sbp->mtx, 1966 /*untagged*/ 1, 1967 /*tagged*/ SBP_QUEUE_LEN - 1, 1968 devq); 1969 1970 if (sbp->sim == NULL) { 1971 cam_simq_free(devq); 1972 return (ENXIO); 1973 } 1974 1975 SBP_LOCK(sbp); 1976 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 1977 goto fail; 1978 1979 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), 1980 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1981 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1982 goto fail; 1983 } 1984 SBP_UNLOCK(sbp); 1985 1986 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1987 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1988 sbp->fwb.end = sbp->fwb.start + 0xffff; 1989 /* pre-allocate xfer */ 1990 STAILQ_INIT(&sbp->fwb.xferlist); 1991 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 1992 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 1993 fc, (void *)sbp, sbp_recv); 1994 1995 fw_bindadd(fc, &sbp->fwb); 1996 1997 sbp->fd.post_busreset = sbp_post_busreset; 1998 sbp->fd.post_explore = sbp_post_explore; 1999 2000 if (fc->status != -1) { 2001 sbp_post_busreset(sbp); 2002 sbp_post_explore(sbp); 2003 } 2004 SBP_LOCK(sbp); 2005 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2006 SBP_UNLOCK(sbp); 2007 2008 return (0); 2009 fail: 2010 SBP_UNLOCK(sbp); 2011 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2012 return (ENXIO); 2013 } 2014 2015 static int 2016 sbp_logout_all(struct sbp_softc *sbp) 2017 { 2018 struct sbp_target *target; 2019 struct sbp_dev *sdev; 2020 int i, j; 2021 2022 SBP_DEBUG(0) 2023 printf("sbp_logout_all\n"); 2024 END_DEBUG 2025 SBP_LOCK_ASSERT(sbp); 2026 for (i = 0; i < SBP_NUM_TARGETS; i++) { 2027 target = &sbp->targets[i]; 2028 if (target->luns == NULL) 2029 continue; 2030 for (j = 0; j < target->num_lun; j++) { 2031 sdev = target->luns[j]; 2032 if (sdev == NULL) 2033 continue; 2034 callout_stop(&sdev->login_callout); 2035 if (sdev->status >= SBP_DEV_TOATTACH && 2036 sdev->status <= SBP_DEV_ATTACHED) 2037 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2038 } 2039 } 2040 2041 return 0; 2042 } 2043 2044 static int 2045 sbp_shutdown(device_t dev) 2046 { 2047 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2048 2049 SBP_LOCK(sbp); 2050 sbp_logout_all(sbp); 2051 SBP_UNLOCK(sbp); 2052 return (0); 2053 } 2054 2055 static void 2056 sbp_free_sdev(struct sbp_dev *sdev) 2057 { 2058 struct sbp_softc *sbp; 2059 int i; 2060 2061 if (sdev == NULL) 2062 return; 2063 sbp = sdev->target->sbp; 2064 SBP_UNLOCK(sbp); 2065 callout_drain(&sdev->login_callout); 2066 for (i = 0; i < SBP_QUEUE_LEN; i++) { 2067 callout_drain(&sdev->ocb[i].timer); 2068 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); 2069 } 2070 fwdma_free(sbp->fd.fc, &sdev->dma); 2071 free(sdev, M_SBP); 2072 SBP_LOCK(sbp); 2073 } 2074 2075 static void 2076 sbp_free_target(struct sbp_target *target) 2077 { 2078 struct sbp_softc *sbp; 2079 struct fw_xfer *xfer, *next; 2080 int i; 2081 2082 if (target->luns == NULL) 2083 return; 2084 sbp = target->sbp; 2085 SBP_LOCK_ASSERT(sbp); 2086 SBP_UNLOCK(sbp); 2087 callout_drain(&target->mgm_ocb_timeout); 2088 callout_drain(&target->scan_callout); 2089 SBP_LOCK(sbp); 2090 for (i = 0; i < target->num_lun; i++) 2091 sbp_free_sdev(target->luns[i]); 2092 2093 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { 2094 fw_xfer_free_buf(xfer); 2095 } 2096 STAILQ_INIT(&target->xferlist); 2097 free(target->luns, M_SBP); 2098 target->num_lun = 0; 2099 target->luns = NULL; 2100 target->fwdev = NULL; 2101 } 2102 2103 static int 2104 sbp_detach(device_t dev) 2105 { 2106 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2107 struct firewire_comm *fc = sbp->fd.fc; 2108 int i; 2109 2110 SBP_DEBUG(0) 2111 printf("sbp_detach\n"); 2112 END_DEBUG 2113 2114 SBP_LOCK(sbp); 2115 for (i = 0; i < SBP_NUM_TARGETS; i++) 2116 sbp_cam_detach_target(&sbp->targets[i]); 2117 2118 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2119 xpt_free_path(sbp->path); 2120 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2121 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2122 2123 sbp_logout_all(sbp); 2124 SBP_UNLOCK(sbp); 2125 2126 /* XXX wait for logout completion */ 2127 pause("sbpdtc", hz/2); 2128 2129 SBP_LOCK(sbp); 2130 for (i = 0; i < SBP_NUM_TARGETS; i++) 2131 sbp_free_target(&sbp->targets[i]); 2132 SBP_UNLOCK(sbp); 2133 2134 fw_bindremove(fc, &sbp->fwb); 2135 fw_xferlist_remove(&sbp->fwb.xferlist); 2136 2137 bus_dma_tag_destroy(sbp->dmat); 2138 mtx_destroy(&sbp->mtx); 2139 2140 return (0); 2141 } 2142 2143 static void 2144 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2145 { 2146 if (sdev == NULL) 2147 return; 2148 if (sdev->status == SBP_DEV_DEAD) 2149 return; 2150 if (sdev->status == SBP_DEV_RESET) 2151 return; 2152 SBP_LOCK_ASSERT(sdev->target->sbp); 2153 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2154 if (sdev->path) { 2155 xpt_release_devq(sdev->path, 2156 sdev->freeze, TRUE); 2157 sdev->freeze = 0; 2158 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2159 xpt_free_path(sdev->path); 2160 sdev->path = NULL; 2161 } 2162 } 2163 2164 static void 2165 sbp_cam_detach_target(struct sbp_target *target) 2166 { 2167 int i; 2168 2169 SBP_LOCK_ASSERT(target->sbp); 2170 if (target->luns != NULL) { 2171 SBP_DEBUG(0) 2172 printf("sbp_detach_target %d\n", target->target_id); 2173 END_DEBUG 2174 callout_stop(&target->scan_callout); 2175 for (i = 0; i < target->num_lun; i++) 2176 sbp_cam_detach_sdev(target->luns[i]); 2177 } 2178 } 2179 2180 static void 2181 sbp_target_reset(struct sbp_dev *sdev, int method) 2182 { 2183 int i; 2184 struct sbp_target *target = sdev->target; 2185 struct sbp_dev *tsdev; 2186 2187 SBP_LOCK_ASSERT(target->sbp); 2188 for (i = 0; i < target->num_lun; i++) { 2189 tsdev = target->luns[i]; 2190 if (tsdev == NULL) 2191 continue; 2192 if (tsdev->status == SBP_DEV_DEAD) 2193 continue; 2194 if (tsdev->status == SBP_DEV_RESET) 2195 continue; 2196 xpt_freeze_devq(tsdev->path, 1); 2197 tsdev->freeze++; 2198 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2199 if (method == 2) 2200 tsdev->status = SBP_DEV_LOGIN; 2201 } 2202 switch (method) { 2203 case 1: 2204 printf("target reset\n"); 2205 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2206 break; 2207 case 2: 2208 printf("reset start\n"); 2209 sbp_reset_start(sdev); 2210 break; 2211 } 2212 2213 } 2214 2215 static void 2216 sbp_mgm_timeout(void *arg) 2217 { 2218 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2219 struct sbp_dev *sdev = ocb->sdev; 2220 struct sbp_target *target = sdev->target; 2221 2222 SBP_LOCK_ASSERT(target->sbp); 2223 device_printf(sdev->target->sbp->fd.dev, 2224 "%s:%s request timeout(mgm orb:0x%08x)\n", 2225 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2226 target->mgm_ocb_cur = NULL; 2227 sbp_free_ocb(sdev, ocb); 2228 #if 0 2229 /* XXX */ 2230 printf("run next request\n"); 2231 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2232 #endif 2233 device_printf(sdev->target->sbp->fd.dev, 2234 "%s:%s reset start\n", 2235 __func__, sdev->bustgtlun); 2236 sbp_reset_start(sdev); 2237 } 2238 2239 static void 2240 sbp_timeout(void *arg) 2241 { 2242 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2243 struct sbp_dev *sdev = ocb->sdev; 2244 2245 device_printf(sdev->target->sbp->fd.dev, 2246 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2247 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2248 2249 SBP_LOCK_ASSERT(sdev->target->sbp); 2250 sdev->timeout++; 2251 switch (sdev->timeout) { 2252 case 1: 2253 printf("agent reset\n"); 2254 xpt_freeze_devq(sdev->path, 1); 2255 sdev->freeze++; 2256 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2257 sbp_agent_reset(sdev); 2258 break; 2259 case 2: 2260 case 3: 2261 sbp_target_reset(sdev, sdev->timeout - 1); 2262 break; 2263 #if 0 2264 default: 2265 /* XXX give up */ 2266 sbp_cam_detach_target(target); 2267 if (target->luns != NULL) 2268 free(target->luns, M_SBP); 2269 target->num_lun = 0; 2270 target->luns = NULL; 2271 target->fwdev = NULL; 2272 #endif 2273 } 2274 } 2275 2276 static void 2277 sbp_action(struct cam_sim *sim, union ccb *ccb) 2278 { 2279 2280 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2281 struct sbp_target *target = NULL; 2282 struct sbp_dev *sdev = NULL; 2283 2284 if (sbp != NULL) 2285 SBP_LOCK_ASSERT(sbp); 2286 /* target:lun -> sdev mapping */ 2287 if (sbp != NULL 2288 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2289 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2290 target = &sbp->targets[ccb->ccb_h.target_id]; 2291 if (target->fwdev != NULL 2292 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2293 && ccb->ccb_h.target_lun < target->num_lun) { 2294 sdev = target->luns[ccb->ccb_h.target_lun]; 2295 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2296 sdev->status != SBP_DEV_PROBE) 2297 sdev = NULL; 2298 } 2299 } 2300 2301 SBP_DEBUG(1) 2302 if (sdev == NULL) 2303 printf("invalid target %d lun %jx\n", 2304 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2305 END_DEBUG 2306 2307 switch (ccb->ccb_h.func_code) { 2308 case XPT_SCSI_IO: 2309 case XPT_RESET_DEV: 2310 case XPT_GET_TRAN_SETTINGS: 2311 case XPT_SET_TRAN_SETTINGS: 2312 case XPT_CALC_GEOMETRY: 2313 if (sdev == NULL) { 2314 SBP_DEBUG(1) 2315 printf("%s:%d:%jx:func_code 0x%04x: " 2316 "Invalid target (target needed)\n", 2317 device_get_nameunit(sbp->fd.dev), 2318 ccb->ccb_h.target_id, 2319 (uintmax_t)ccb->ccb_h.target_lun, 2320 ccb->ccb_h.func_code); 2321 END_DEBUG 2322 2323 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2324 xpt_done(ccb); 2325 return; 2326 } 2327 break; 2328 case XPT_PATH_INQ: 2329 case XPT_NOOP: 2330 /* The opcodes sometimes aimed at a target (sc is valid), 2331 * sometimes aimed at the SIM (sc is invalid and target is 2332 * CAM_TARGET_WILDCARD) 2333 */ 2334 if (sbp == NULL && 2335 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2336 SBP_DEBUG(0) 2337 printf("%s:%d:%jx func_code 0x%04x: " 2338 "Invalid target (no wildcard)\n", 2339 device_get_nameunit(sbp->fd.dev), 2340 ccb->ccb_h.target_id, 2341 (uintmax_t)ccb->ccb_h.target_lun, 2342 ccb->ccb_h.func_code); 2343 END_DEBUG 2344 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2345 xpt_done(ccb); 2346 return; 2347 } 2348 break; 2349 default: 2350 /* XXX Hm, we should check the input parameters */ 2351 break; 2352 } 2353 2354 switch (ccb->ccb_h.func_code) { 2355 case XPT_SCSI_IO: 2356 { 2357 struct ccb_scsiio *csio; 2358 struct sbp_ocb *ocb; 2359 int speed; 2360 void *cdb; 2361 2362 csio = &ccb->csio; 2363 mtx_assert(sim->mtx, MA_OWNED); 2364 2365 SBP_DEBUG(2) 2366 printf("%s:%d:%jx XPT_SCSI_IO: " 2367 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2368 ", flags: 0x%02x, " 2369 "%db cmd/%db data/%db sense\n", 2370 device_get_nameunit(sbp->fd.dev), 2371 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2372 csio->cdb_io.cdb_bytes[0], 2373 csio->cdb_io.cdb_bytes[1], 2374 csio->cdb_io.cdb_bytes[2], 2375 csio->cdb_io.cdb_bytes[3], 2376 csio->cdb_io.cdb_bytes[4], 2377 csio->cdb_io.cdb_bytes[5], 2378 csio->cdb_io.cdb_bytes[6], 2379 csio->cdb_io.cdb_bytes[7], 2380 csio->cdb_io.cdb_bytes[8], 2381 csio->cdb_io.cdb_bytes[9], 2382 ccb->ccb_h.flags & CAM_DIR_MASK, 2383 csio->cdb_len, csio->dxfer_len, 2384 csio->sense_len); 2385 END_DEBUG 2386 if (sdev == NULL) { 2387 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2388 xpt_done(ccb); 2389 return; 2390 } 2391 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { 2392 ccb->ccb_h.status = CAM_REQ_INVALID; 2393 xpt_done(ccb); 2394 return; 2395 } 2396 #if 0 2397 /* if we are in probe stage, pass only probe commands */ 2398 if (sdev->status == SBP_DEV_PROBE) { 2399 char *name; 2400 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2401 printf("probe stage, periph name: %s\n", name); 2402 if (strcmp(name, "probe") != 0) { 2403 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2404 xpt_done(ccb); 2405 return; 2406 } 2407 } 2408 #endif 2409 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2410 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2411 if (sdev->freeze == 0) { 2412 xpt_freeze_devq(sdev->path, 1); 2413 sdev->freeze++; 2414 } 2415 xpt_done(ccb); 2416 return; 2417 } 2418 2419 ocb->flags = OCB_ACT_CMD; 2420 ocb->sdev = sdev; 2421 ocb->ccb = ccb; 2422 ccb->ccb_h.ccb_sdev_ptr = sdev; 2423 ocb->orb[0] = htonl(1U << 31); 2424 ocb->orb[1] = 0; 2425 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16)); 2426 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2427 speed = min(target->fwdev->speed, max_speed); 2428 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2429 | ORB_CMD_MAXP(speed + 7)); 2430 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 2431 ocb->orb[4] |= htonl(ORB_CMD_IN); 2432 } 2433 2434 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2435 cdb = (void *)csio->cdb_io.cdb_ptr; 2436 else 2437 cdb = (void *)&csio->cdb_io.cdb_bytes; 2438 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2439 /* 2440 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2441 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2442 */ 2443 if (ccb->csio.dxfer_len > 0) { 2444 int error; 2445 2446 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, 2447 /*dma map*/ocb->dmamap, 2448 ccb, 2449 sbp_execute_ocb, 2450 ocb, 2451 /*flags*/0); 2452 if (error) 2453 printf("sbp: bus_dmamap_load error %d\n", error); 2454 } else 2455 sbp_execute_ocb(ocb, NULL, 0, 0); 2456 break; 2457 } 2458 case XPT_CALC_GEOMETRY: 2459 { 2460 struct ccb_calc_geometry *ccg; 2461 2462 ccg = &ccb->ccg; 2463 if (ccg->block_size == 0) { 2464 printf("sbp_action: block_size is 0.\n"); 2465 ccb->ccb_h.status = CAM_REQ_INVALID; 2466 xpt_done(ccb); 2467 break; 2468 } 2469 SBP_DEBUG(1) 2470 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " 2471 "Volume size = %jd\n", 2472 device_get_nameunit(sbp->fd.dev), 2473 cam_sim_path(sbp->sim), 2474 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, 2475 (uintmax_t)ccg->volume_size); 2476 END_DEBUG 2477 2478 cam_calc_geometry(ccg, /*extended*/1); 2479 xpt_done(ccb); 2480 break; 2481 } 2482 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2483 { 2484 2485 SBP_DEBUG(1) 2486 printf("%s:%d:XPT_RESET_BUS: \n", 2487 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2488 END_DEBUG 2489 2490 ccb->ccb_h.status = CAM_REQ_INVALID; 2491 xpt_done(ccb); 2492 break; 2493 } 2494 case XPT_PATH_INQ: /* Path routing inquiry */ 2495 { 2496 struct ccb_pathinq *cpi = &ccb->cpi; 2497 2498 SBP_DEBUG(1) 2499 printf("%s:%d:%jx XPT_PATH_INQ:.\n", 2500 device_get_nameunit(sbp->fd.dev), 2501 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2502 END_DEBUG 2503 cpi->version_num = 1; /* XXX??? */ 2504 cpi->hba_inquiry = PI_TAG_ABLE; 2505 cpi->target_sprt = 0; 2506 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2507 cpi->hba_eng_cnt = 0; 2508 cpi->max_target = SBP_NUM_TARGETS - 1; 2509 cpi->max_lun = SBP_NUM_LUNS - 1; 2510 cpi->initiator_id = SBP_INITIATOR; 2511 cpi->bus_id = sim->bus_id; 2512 cpi->base_transfer_speed = 400 * 1000 / 8; 2513 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2514 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2515 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2516 cpi->unit_number = sim->unit_number; 2517 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2518 cpi->transport_version = 2; 2519 cpi->protocol = PROTO_SCSI; 2520 cpi->protocol_version = SCSI_REV_2; 2521 2522 cpi->ccb_h.status = CAM_REQ_CMP; 2523 xpt_done(ccb); 2524 break; 2525 } 2526 case XPT_GET_TRAN_SETTINGS: 2527 { 2528 struct ccb_trans_settings *cts = &ccb->cts; 2529 struct ccb_trans_settings_scsi *scsi = 2530 &cts->proto_specific.scsi; 2531 struct ccb_trans_settings_spi *spi = 2532 &cts->xport_specific.spi; 2533 2534 cts->protocol = PROTO_SCSI; 2535 cts->protocol_version = SCSI_REV_2; 2536 cts->transport = XPORT_SPI; /* should have a FireWire */ 2537 cts->transport_version = 2; 2538 spi->valid = CTS_SPI_VALID_DISC; 2539 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2540 scsi->valid = CTS_SCSI_VALID_TQ; 2541 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2542 SBP_DEBUG(1) 2543 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", 2544 device_get_nameunit(sbp->fd.dev), 2545 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); 2546 END_DEBUG 2547 cts->ccb_h.status = CAM_REQ_CMP; 2548 xpt_done(ccb); 2549 break; 2550 } 2551 case XPT_ABORT: 2552 ccb->ccb_h.status = CAM_UA_ABORT; 2553 xpt_done(ccb); 2554 break; 2555 case XPT_SET_TRAN_SETTINGS: 2556 /* XXX */ 2557 default: 2558 ccb->ccb_h.status = CAM_REQ_INVALID; 2559 xpt_done(ccb); 2560 break; 2561 } 2562 return; 2563 } 2564 2565 static void 2566 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2567 { 2568 int i; 2569 struct sbp_ocb *ocb; 2570 struct sbp_ocb *prev; 2571 bus_dma_segment_t *s; 2572 2573 if (error) 2574 printf("sbp_execute_ocb: error=%d\n", error); 2575 2576 ocb = (struct sbp_ocb *)arg; 2577 2578 SBP_DEBUG(2) 2579 printf("sbp_execute_ocb: seg %d", seg); 2580 for (i = 0; i < seg; i++) 2581 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2582 (uintmax_t)segments[i].ds_len); 2583 printf("\n"); 2584 END_DEBUG 2585 2586 if (seg == 1) { 2587 /* direct pointer */ 2588 s = &segments[0]; 2589 if (s->ds_len > SBP_SEG_MAX) 2590 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2591 ocb->orb[3] = htonl(s->ds_addr); 2592 ocb->orb[4] |= htonl(s->ds_len); 2593 } else if (seg > 1) { 2594 /* page table */ 2595 for (i = 0; i < seg; i++) { 2596 s = &segments[i]; 2597 SBP_DEBUG(0) 2598 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2599 if (s->ds_len < 16) 2600 printf("sbp_execute_ocb: warning, " 2601 "segment length(%zd) is less than 16." 2602 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); 2603 END_DEBUG 2604 if (s->ds_len > SBP_SEG_MAX) 2605 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2606 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2607 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2608 } 2609 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2610 } 2611 2612 if (seg > 0) 2613 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2614 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2615 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2616 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2617 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2618 if (use_doorbell) { 2619 if (prev == NULL) { 2620 if (ocb->sdev->last_ocb != NULL) 2621 sbp_doorbell(ocb->sdev); 2622 else 2623 sbp_orb_pointer(ocb->sdev, ocb); 2624 } 2625 } else { 2626 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2627 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2628 sbp_orb_pointer(ocb->sdev, ocb); 2629 } 2630 } 2631 } 2632 2633 static void 2634 sbp_poll(struct cam_sim *sim) 2635 { 2636 struct sbp_softc *sbp; 2637 struct firewire_comm *fc; 2638 2639 sbp = (struct sbp_softc *)sim->softc; 2640 fc = sbp->fd.fc; 2641 2642 fc->poll(fc, 0, -1); 2643 2644 return; 2645 } 2646 2647 static struct sbp_ocb * 2648 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2649 { 2650 struct sbp_ocb *ocb; 2651 struct sbp_ocb *next; 2652 int order = 0; 2653 2654 SBP_DEBUG(1) 2655 device_printf(sdev->target->sbp->fd.dev, 2656 "%s:%s 0x%08x src %d\n", 2657 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2658 END_DEBUG 2659 SBP_LOCK_ASSERT(sdev->target->sbp); 2660 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { 2661 if (OCB_MATCH(ocb, sbp_status)) { 2662 /* found */ 2663 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2664 if (ocb->ccb != NULL) 2665 callout_stop(&ocb->timer); 2666 if (ntohl(ocb->orb[4]) & 0xffff) { 2667 bus_dmamap_sync(sdev->target->sbp->dmat, 2668 ocb->dmamap, 2669 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2670 BUS_DMASYNC_POSTREAD : 2671 BUS_DMASYNC_POSTWRITE); 2672 bus_dmamap_unload(sdev->target->sbp->dmat, 2673 ocb->dmamap); 2674 } 2675 if (!use_doorbell) { 2676 if (sbp_status->src == SRC_NO_NEXT) { 2677 if (next != NULL) 2678 sbp_orb_pointer(sdev, next); 2679 else if (order > 0) { 2680 /* 2681 * Unordered execution 2682 * We need to send pointer for 2683 * next ORB 2684 */ 2685 sdev->flags |= ORB_LINK_DEAD; 2686 } 2687 } 2688 } else { 2689 /* 2690 * XXX this is not correct for unordered 2691 * execution. 2692 */ 2693 if (sdev->last_ocb != NULL) { 2694 sbp_free_ocb(sdev, sdev->last_ocb); 2695 } 2696 sdev->last_ocb = ocb; 2697 if (next != NULL && 2698 sbp_status->src == SRC_NO_NEXT) 2699 sbp_doorbell(sdev); 2700 } 2701 break; 2702 } else 2703 order++; 2704 } 2705 SBP_DEBUG(0) 2706 if (ocb && order > 0) { 2707 device_printf(sdev->target->sbp->fd.dev, 2708 "%s:%s unordered execution order:%d\n", 2709 __func__, sdev->bustgtlun, order); 2710 } 2711 END_DEBUG 2712 return (ocb); 2713 } 2714 2715 static struct sbp_ocb * 2716 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2717 { 2718 struct sbp_ocb *prev, *prev2; 2719 2720 SBP_LOCK_ASSERT(sdev->target->sbp); 2721 SBP_DEBUG(1) 2722 device_printf(sdev->target->sbp->fd.dev, 2723 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2724 END_DEBUG 2725 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2726 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2727 2728 if (ocb->ccb != NULL) { 2729 callout_reset_sbt(&ocb->timer, 2730 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, 2731 ocb, 0); 2732 } 2733 2734 if (use_doorbell && prev == NULL) 2735 prev2 = sdev->last_ocb; 2736 2737 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2738 SBP_DEBUG(1) 2739 printf("linking chain 0x%jx -> 0x%jx\n", 2740 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2741 END_DEBUG 2742 /* 2743 * Suppress compiler optimization so that orb[1] must be written first. 2744 * XXX We may need an explicit memory barrier for other architectures 2745 * other than i386/amd64. 2746 */ 2747 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2748 *(volatile uint32_t *)&prev2->orb[0] = 0; 2749 } 2750 2751 return prev; 2752 } 2753 2754 static struct sbp_ocb * 2755 sbp_get_ocb(struct sbp_dev *sdev) 2756 { 2757 struct sbp_ocb *ocb; 2758 2759 SBP_LOCK_ASSERT(sdev->target->sbp); 2760 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2761 if (ocb == NULL) { 2762 sdev->flags |= ORB_SHORTAGE; 2763 printf("ocb shortage!!!\n"); 2764 return NULL; 2765 } 2766 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2767 ocb->ccb = NULL; 2768 return (ocb); 2769 } 2770 2771 static void 2772 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2773 { 2774 ocb->flags = 0; 2775 ocb->ccb = NULL; 2776 2777 SBP_LOCK_ASSERT(sdev->target->sbp); 2778 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2779 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2780 int count; 2781 2782 sdev->flags &= ~ORB_SHORTAGE; 2783 count = sdev->freeze; 2784 sdev->freeze = 0; 2785 xpt_release_devq(sdev->path, count, TRUE); 2786 } 2787 } 2788 2789 static void 2790 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2791 { 2792 struct sbp_dev *sdev; 2793 2794 sdev = ocb->sdev; 2795 SBP_LOCK_ASSERT(sdev->target->sbp); 2796 SBP_DEBUG(0) 2797 device_printf(sdev->target->sbp->fd.dev, 2798 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2799 END_DEBUG 2800 SBP_DEBUG(1) 2801 if (ocb->ccb != NULL) 2802 sbp_print_scsi_cmd(ocb); 2803 END_DEBUG 2804 if (ntohl(ocb->orb[4]) & 0xffff) { 2805 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2806 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2807 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2808 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2809 } 2810 if (ocb->ccb != NULL) { 2811 callout_stop(&ocb->timer); 2812 ocb->ccb->ccb_h.status = status; 2813 xpt_done(ocb->ccb); 2814 } 2815 sbp_free_ocb(sdev, ocb); 2816 } 2817 2818 static void 2819 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2820 { 2821 struct sbp_ocb *ocb, *next; 2822 STAILQ_HEAD(, sbp_ocb) temp; 2823 2824 STAILQ_INIT(&temp); 2825 SBP_LOCK_ASSERT(sdev->target->sbp); 2826 STAILQ_CONCAT(&temp, &sdev->ocbs); 2827 STAILQ_INIT(&sdev->ocbs); 2828 2829 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { 2830 sbp_abort_ocb(ocb, status); 2831 } 2832 if (sdev->last_ocb != NULL) { 2833 sbp_free_ocb(sdev, sdev->last_ocb); 2834 sdev->last_ocb = NULL; 2835 } 2836 } 2837 2838 static devclass_t sbp_devclass; 2839 2840 static device_method_t sbp_methods[] = { 2841 /* device interface */ 2842 DEVMETHOD(device_identify, sbp_identify), 2843 DEVMETHOD(device_probe, sbp_probe), 2844 DEVMETHOD(device_attach, sbp_attach), 2845 DEVMETHOD(device_detach, sbp_detach), 2846 DEVMETHOD(device_shutdown, sbp_shutdown), 2847 2848 { 0, 0 } 2849 }; 2850 2851 static driver_t sbp_driver = { 2852 "sbp", 2853 sbp_methods, 2854 sizeof(struct sbp_softc), 2855 }; 2856 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2857 MODULE_VERSION(sbp, 1); 2858 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2859 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2860