1 /*- 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/module.h> 41 #include <sys/bus.h> 42 #include <sys/kernel.h> 43 #include <sys/sysctl.h> 44 #include <machine/bus.h> 45 #include <sys/malloc.h> 46 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #endif 50 51 #if defined(__DragonFly__) || __FreeBSD_version < 500106 52 #include <sys/devicestat.h> /* for struct devstat */ 53 #endif 54 55 #ifdef __DragonFly__ 56 #include <bus/cam/cam.h> 57 #include <bus/cam/cam_ccb.h> 58 #include <bus/cam/cam_sim.h> 59 #include <bus/cam/cam_xpt_sim.h> 60 #include <bus/cam/cam_debug.h> 61 #include <bus/cam/cam_periph.h> 62 #include <bus/cam/scsi/scsi_all.h> 63 64 #include <bus/firewire/firewire.h> 65 #include <bus/firewire/firewirereg.h> 66 #include <bus/firewire/fwdma.h> 67 #include <bus/firewire/iec13213.h> 68 #include "sbp.h" 69 #else 70 #include <cam/cam.h> 71 #include <cam/cam_ccb.h> 72 #include <cam/cam_sim.h> 73 #include <cam/cam_xpt_sim.h> 74 #include <cam/cam_debug.h> 75 #include <cam/cam_periph.h> 76 #include <cam/scsi/scsi_all.h> 77 78 #include <dev/firewire/firewire.h> 79 #include <dev/firewire/firewirereg.h> 80 #include <dev/firewire/fwdma.h> 81 #include <dev/firewire/iec13213.h> 82 #include <dev/firewire/sbp.h> 83 #endif 84 85 #define ccb_sdev_ptr spriv_ptr0 86 #define ccb_sbp_ptr spriv_ptr1 87 88 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 89 /* 90 * Scan_bus doesn't work for more than 8 LUNs 91 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 92 */ 93 #define SBP_NUM_LUNS 64 94 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) 95 #define SBP_DMA_SIZE PAGE_SIZE 96 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 97 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 98 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 99 100 /* 101 * STATUS FIFO addressing 102 * bit 103 * ----------------------- 104 * 0- 1( 2): 0 (alignment) 105 * 2- 7( 6): target 106 * 8-15( 8): lun 107 * 16-31( 8): reserved 108 * 32-47(16): SBP_BIND_HI 109 * 48-64(16): bus_id, node_id 110 */ 111 #define SBP_BIND_HI 0x1 112 #define SBP_DEV2ADDR(t, l) \ 113 (((u_int64_t)SBP_BIND_HI << 32) \ 114 | (((l) & 0xff) << 8) \ 115 | (((t) & 0x3f) << 2)) 116 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 117 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 118 #define SBP_INITIATOR 7 119 120 static char *orb_fun_name[] = { 121 ORB_FUN_NAMES 122 }; 123 124 static int debug = 0; 125 static int auto_login = 1; 126 static int max_speed = -1; 127 static int sbp_cold = 1; 128 static int ex_login = 1; 129 static int login_delay = 1000; /* msec */ 130 static int scan_delay = 500; /* msec */ 131 static int use_doorbell = 0; 132 static int sbp_tags = 0; 133 134 SYSCTL_DECL(_hw_firewire); 135 static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, 136 "SBP-II Subsystem"); 137 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 138 "SBP debug flag"); 139 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 140 "SBP perform login automatically"); 141 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 142 "SBP transfer max speed"); 143 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 144 &ex_login, 0, "SBP enable exclusive login"); 145 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 146 &login_delay, 0, "SBP login delay in msec"); 147 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 148 &scan_delay, 0, "SBP scan delay in msec"); 149 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW, 150 &use_doorbell, 0, "SBP use doorbell request"); 151 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 152 "SBP tagged queuing support"); 153 154 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 155 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 156 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 157 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 158 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 159 TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell); 160 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 161 162 #define NEED_RESPONSE 0 163 164 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 165 #ifdef __sparc64__ /* iommu */ 166 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 167 #else 168 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 169 #endif 170 struct sbp_ocb { 171 STAILQ_ENTRY(sbp_ocb) ocb; 172 union ccb *ccb; 173 bus_addr_t bus_addr; 174 uint32_t orb[8]; 175 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 176 struct ind_ptr ind_ptr[SBP_IND_MAX]; 177 struct sbp_dev *sdev; 178 int flags; /* XXX should be removed */ 179 bus_dmamap_t dmamap; 180 }; 181 182 #define OCB_ACT_MGM 0 183 #define OCB_ACT_CMD 1 184 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 185 186 struct sbp_dev{ 187 #define SBP_DEV_RESET 0 /* accept login */ 188 #define SBP_DEV_LOGIN 1 /* to login */ 189 #if 0 190 #define SBP_DEV_RECONN 2 /* to reconnect */ 191 #endif 192 #define SBP_DEV_TOATTACH 3 /* to attach */ 193 #define SBP_DEV_PROBE 4 /* scan lun */ 194 #define SBP_DEV_ATTACHED 5 /* in operation */ 195 #define SBP_DEV_DEAD 6 /* unavailable unit */ 196 #define SBP_DEV_RETRY 7 /* unavailable unit */ 197 uint8_t status:4, 198 timeout:4; 199 uint8_t type; 200 uint16_t lun_id; 201 uint16_t freeze; 202 #define ORB_LINK_DEAD (1 << 0) 203 #define VALID_LUN (1 << 1) 204 #define ORB_POINTER_ACTIVE (1 << 2) 205 #define ORB_POINTER_NEED (1 << 3) 206 #define ORB_DOORBELL_ACTIVE (1 << 4) 207 #define ORB_DOORBELL_NEED (1 << 5) 208 #define ORB_SHORTAGE (1 << 6) 209 uint16_t flags; 210 struct cam_path *path; 211 struct sbp_target *target; 212 struct fwdma_alloc dma; 213 struct sbp_login_res *login; 214 struct callout login_callout; 215 struct sbp_ocb *ocb; 216 STAILQ_HEAD(, sbp_ocb) ocbs; 217 STAILQ_HEAD(, sbp_ocb) free_ocbs; 218 struct sbp_ocb *last_ocb; 219 char vendor[32]; 220 char product[32]; 221 char revision[10]; 222 char bustgtlun[32]; 223 }; 224 225 struct sbp_target { 226 int target_id; 227 int num_lun; 228 struct sbp_dev **luns; 229 struct sbp_softc *sbp; 230 struct fw_device *fwdev; 231 uint32_t mgm_hi, mgm_lo; 232 struct sbp_ocb *mgm_ocb_cur; 233 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 234 struct callout mgm_ocb_timeout; 235 struct callout scan_callout; 236 STAILQ_HEAD(, fw_xfer) xferlist; 237 int n_xfer; 238 }; 239 240 struct sbp_softc { 241 struct firewire_dev_comm fd; 242 struct cam_sim *sim; 243 struct cam_path *path; 244 struct sbp_target targets[SBP_NUM_TARGETS]; 245 struct fw_bind fwb; 246 bus_dma_tag_t dmat; 247 struct timeval last_busreset; 248 #define SIMQ_FREEZED 1 249 int flags; 250 struct mtx mtx; 251 }; 252 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 253 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 254 255 static void sbp_post_explore (void *); 256 static void sbp_recv (struct fw_xfer *); 257 static void sbp_mgm_callback (struct fw_xfer *); 258 #if 0 259 static void sbp_cmd_callback (struct fw_xfer *); 260 #endif 261 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 262 static void sbp_doorbell(struct sbp_dev *); 263 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 264 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 265 static void sbp_abort_ocb (struct sbp_ocb *, int); 266 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 267 static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int); 268 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 269 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 270 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 271 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 272 static void sbp_cam_detach_sdev(struct sbp_dev *); 273 static void sbp_free_sdev(struct sbp_dev *); 274 static void sbp_cam_detach_target (struct sbp_target *); 275 static void sbp_free_target (struct sbp_target *); 276 static void sbp_mgm_timeout (void *arg); 277 static void sbp_timeout (void *arg); 278 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 279 280 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 281 282 /* cam related functions */ 283 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 284 static void sbp_poll(struct cam_sim *sim); 285 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 286 static void sbp_cam_scan_target(void *arg); 287 288 static char *orb_status0[] = { 289 /* 0 */ "No additional information to report", 290 /* 1 */ "Request type not supported", 291 /* 2 */ "Speed not supported", 292 /* 3 */ "Page size not supported", 293 /* 4 */ "Access denied", 294 /* 5 */ "Logical unit not supported", 295 /* 6 */ "Maximum payload too small", 296 /* 7 */ "Reserved for future standardization", 297 /* 8 */ "Resources unavailable", 298 /* 9 */ "Function rejected", 299 /* A */ "Login ID not recognized", 300 /* B */ "Dummy ORB completed", 301 /* C */ "Request aborted", 302 /* FF */ "Unspecified error" 303 #define MAX_ORB_STATUS0 0xd 304 }; 305 306 static char *orb_status1_object[] = { 307 /* 0 */ "Operation request block (ORB)", 308 /* 1 */ "Data buffer", 309 /* 2 */ "Page table", 310 /* 3 */ "Unable to specify" 311 }; 312 313 static char *orb_status1_serial_bus_error[] = { 314 /* 0 */ "Missing acknowledge", 315 /* 1 */ "Reserved; not to be used", 316 /* 2 */ "Time-out error", 317 /* 3 */ "Reserved; not to be used", 318 /* 4 */ "Busy retry limit exceeded(X)", 319 /* 5 */ "Busy retry limit exceeded(A)", 320 /* 6 */ "Busy retry limit exceeded(B)", 321 /* 7 */ "Reserved for future standardization", 322 /* 8 */ "Reserved for future standardization", 323 /* 9 */ "Reserved for future standardization", 324 /* A */ "Reserved for future standardization", 325 /* B */ "Tardy retry limit exceeded", 326 /* C */ "Conflict error", 327 /* D */ "Data error", 328 /* E */ "Type error", 329 /* F */ "Address error" 330 }; 331 332 static void 333 sbp_identify(driver_t *driver, device_t parent) 334 { 335 SBP_DEBUG(0) 336 printf("sbp_identify\n"); 337 END_DEBUG 338 339 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent)); 340 } 341 342 /* 343 * sbp_probe() 344 */ 345 static int 346 sbp_probe(device_t dev) 347 { 348 device_t pa; 349 350 SBP_DEBUG(0) 351 printf("sbp_probe\n"); 352 END_DEBUG 353 354 pa = device_get_parent(dev); 355 if(device_get_unit(dev) != device_get_unit(pa)){ 356 return(ENXIO); 357 } 358 359 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 360 361 #if 0 362 if (bootverbose) 363 debug = bootverbose; 364 #endif 365 366 return (0); 367 } 368 369 /* 370 * Display device characteristics on the console 371 */ 372 static void 373 sbp_show_sdev_info(struct sbp_dev *sdev) 374 { 375 struct fw_device *fwdev; 376 377 fwdev = sdev->target->fwdev; 378 device_printf(sdev->target->sbp->fd.dev, 379 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 380 "speed:%d maxrec:%d\n", 381 __func__, 382 sdev->bustgtlun, 383 (sdev->type & 0x40) >> 6, 384 (sdev->type & 0x1f), 385 fwdev->eui.hi, 386 fwdev->eui.lo, 387 fwdev->dst, 388 fwdev->speed, 389 fwdev->maxrec); 390 391 device_printf(sdev->target->sbp->fd.dev, 392 "%s: %s '%s' '%s' '%s'\n", 393 __func__, 394 sdev->bustgtlun, 395 sdev->vendor, 396 sdev->product, 397 sdev->revision); 398 } 399 400 static struct { 401 int bus; 402 int target; 403 struct fw_eui64 eui; 404 } wired[] = { 405 /* Bus Target EUI64 */ 406 #if 0 407 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 408 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 409 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 410 #endif 411 {-1, -1, {0,0}} 412 }; 413 414 static int 415 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 416 { 417 int bus, i, target=-1; 418 char w[SBP_NUM_TARGETS]; 419 420 bzero(w, sizeof(w)); 421 bus = device_get_unit(sbp->fd.dev); 422 423 /* XXX wired-down configuration should be gotten from 424 tunable or device hint */ 425 for (i = 0; wired[i].bus >= 0; i ++) { 426 if (wired[i].bus == bus) { 427 w[wired[i].target] = 1; 428 if (wired[i].eui.hi == fwdev->eui.hi && 429 wired[i].eui.lo == fwdev->eui.lo) 430 target = wired[i].target; 431 } 432 } 433 if (target >= 0) { 434 if(target < SBP_NUM_TARGETS && 435 sbp->targets[target].fwdev == NULL) 436 return(target); 437 device_printf(sbp->fd.dev, 438 "target %d is not free for %08x:%08x\n", 439 target, fwdev->eui.hi, fwdev->eui.lo); 440 target = -1; 441 } 442 /* non-wired target */ 443 for (i = 0; i < SBP_NUM_TARGETS; i ++) 444 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 445 target = i; 446 break; 447 } 448 449 return target; 450 } 451 452 static void 453 sbp_alloc_lun(struct sbp_target *target) 454 { 455 struct crom_context cc; 456 struct csrreg *reg; 457 struct sbp_dev *sdev, **newluns; 458 struct sbp_softc *sbp; 459 int maxlun, lun, i; 460 461 sbp = target->sbp; 462 crom_init_context(&cc, target->fwdev->csrrom); 463 /* XXX shoud parse appropriate unit directories only */ 464 maxlun = -1; 465 while (cc.depth >= 0) { 466 reg = crom_search_key(&cc, CROM_LUN); 467 if (reg == NULL) 468 break; 469 lun = reg->val & 0xffff; 470 SBP_DEBUG(0) 471 printf("target %d lun %d found\n", target->target_id, lun); 472 END_DEBUG 473 if (maxlun < lun) 474 maxlun = lun; 475 crom_next(&cc); 476 } 477 if (maxlun < 0) 478 printf("%s:%d no LUN found\n", 479 device_get_nameunit(target->sbp->fd.dev), 480 target->target_id); 481 482 maxlun ++; 483 if (maxlun >= SBP_NUM_LUNS) 484 maxlun = SBP_NUM_LUNS; 485 486 /* Invalidiate stale devices */ 487 for (lun = 0; lun < target->num_lun; lun ++) { 488 sdev = target->luns[lun]; 489 if (sdev == NULL) 490 continue; 491 sdev->flags &= ~VALID_LUN; 492 if (lun >= maxlun) { 493 /* lost device */ 494 sbp_cam_detach_sdev(sdev); 495 sbp_free_sdev(sdev); 496 target->luns[lun] = NULL; 497 } 498 } 499 500 /* Reallocate */ 501 if (maxlun != target->num_lun) { 502 newluns = (struct sbp_dev **) realloc(target->luns, 503 sizeof(struct sbp_dev *) * maxlun, 504 M_SBP, M_NOWAIT | M_ZERO); 505 506 if (newluns == NULL) { 507 printf("%s: realloc failed\n", __func__); 508 newluns = target->luns; 509 maxlun = target->num_lun; 510 } 511 512 /* 513 * We must zero the extended region for the case 514 * realloc() doesn't allocate new buffer. 515 */ 516 if (maxlun > target->num_lun) 517 bzero(&newluns[target->num_lun], 518 sizeof(struct sbp_dev *) * 519 (maxlun - target->num_lun)); 520 521 target->luns = newluns; 522 target->num_lun = maxlun; 523 } 524 525 crom_init_context(&cc, target->fwdev->csrrom); 526 while (cc.depth >= 0) { 527 int new = 0; 528 529 reg = crom_search_key(&cc, CROM_LUN); 530 if (reg == NULL) 531 break; 532 lun = reg->val & 0xffff; 533 if (lun >= SBP_NUM_LUNS) { 534 printf("too large lun %d\n", lun); 535 goto next; 536 } 537 538 sdev = target->luns[lun]; 539 if (sdev == NULL) { 540 sdev = malloc(sizeof(struct sbp_dev), 541 M_SBP, M_NOWAIT | M_ZERO); 542 if (sdev == NULL) { 543 printf("%s: malloc failed\n", __func__); 544 goto next; 545 } 546 target->luns[lun] = sdev; 547 sdev->lun_id = lun; 548 sdev->target = target; 549 STAILQ_INIT(&sdev->ocbs); 550 CALLOUT_INIT(&sdev->login_callout); 551 sdev->status = SBP_DEV_RESET; 552 new = 1; 553 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 554 device_get_nameunit(sdev->target->sbp->fd.dev), 555 sdev->target->target_id, 556 sdev->lun_id); 557 } 558 sdev->flags |= VALID_LUN; 559 sdev->type = (reg->val & 0xff0000) >> 16; 560 561 if (new == 0) 562 goto next; 563 564 fwdma_malloc(sbp->fd.fc, 565 /* alignment */ sizeof(uint32_t), 566 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 567 BUS_DMA_COHERENT); 568 if (sdev->dma.v_addr == NULL) { 569 printf("%s: dma space allocation failed\n", 570 __func__); 571 free(sdev, M_SBP); 572 target->luns[lun] = NULL; 573 goto next; 574 } 575 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 576 sdev->ocb = (struct sbp_ocb *) 577 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 578 bzero((char *)sdev->ocb, 579 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN); 580 581 STAILQ_INIT(&sdev->free_ocbs); 582 for (i = 0; i < SBP_QUEUE_LEN; i++) { 583 struct sbp_ocb *ocb; 584 ocb = &sdev->ocb[i]; 585 ocb->bus_addr = sdev->dma.bus_addr 586 + SBP_LOGIN_SIZE 587 + sizeof(struct sbp_ocb) * i 588 + offsetof(struct sbp_ocb, orb[0]); 589 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 590 printf("sbp_attach: cannot create dmamap\n"); 591 /* XXX */ 592 goto next; 593 } 594 sbp_free_ocb(sdev, ocb); 595 } 596 next: 597 crom_next(&cc); 598 } 599 600 for (lun = 0; lun < target->num_lun; lun ++) { 601 sdev = target->luns[lun]; 602 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 603 sbp_cam_detach_sdev(sdev); 604 sbp_free_sdev(sdev); 605 target->luns[lun] = NULL; 606 } 607 } 608 } 609 610 static struct sbp_target * 611 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 612 { 613 int i; 614 struct sbp_target *target; 615 struct crom_context cc; 616 struct csrreg *reg; 617 618 SBP_DEBUG(1) 619 printf("sbp_alloc_target\n"); 620 END_DEBUG 621 i = sbp_new_target(sbp, fwdev); 622 if (i < 0) { 623 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 624 return NULL; 625 } 626 /* new target */ 627 target = &sbp->targets[i]; 628 target->sbp = sbp; 629 target->fwdev = fwdev; 630 target->target_id = i; 631 /* XXX we may want to reload mgm port after each bus reset */ 632 /* XXX there might be multiple management agents */ 633 crom_init_context(&cc, target->fwdev->csrrom); 634 reg = crom_search_key(&cc, CROM_MGM); 635 if (reg == NULL || reg->val == 0) { 636 printf("NULL management address\n"); 637 target->fwdev = NULL; 638 return NULL; 639 } 640 target->mgm_hi = 0xffff; 641 target->mgm_lo = 0xf0000000 | (reg->val << 2); 642 target->mgm_ocb_cur = NULL; 643 SBP_DEBUG(1) 644 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 645 END_DEBUG 646 STAILQ_INIT(&target->xferlist); 647 target->n_xfer = 0; 648 STAILQ_INIT(&target->mgm_ocb_queue); 649 CALLOUT_INIT(&target->mgm_ocb_timeout); 650 CALLOUT_INIT(&target->scan_callout); 651 652 target->luns = NULL; 653 target->num_lun = 0; 654 return target; 655 } 656 657 static void 658 sbp_probe_lun(struct sbp_dev *sdev) 659 { 660 struct fw_device *fwdev; 661 struct crom_context c, *cc = &c; 662 struct csrreg *reg; 663 664 bzero(sdev->vendor, sizeof(sdev->vendor)); 665 bzero(sdev->product, sizeof(sdev->product)); 666 667 fwdev = sdev->target->fwdev; 668 crom_init_context(cc, fwdev->csrrom); 669 /* get vendor string */ 670 crom_search_key(cc, CSRKEY_VENDOR); 671 crom_next(cc); 672 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 673 /* skip to the unit directory for SBP-2 */ 674 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 675 if (reg->val == CSRVAL_T10SBP2) 676 break; 677 crom_next(cc); 678 } 679 /* get firmware revision */ 680 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 681 if (reg != NULL) 682 snprintf(sdev->revision, sizeof(sdev->revision), 683 "%06x", reg->val); 684 /* get product string */ 685 crom_search_key(cc, CSRKEY_MODEL); 686 crom_next(cc); 687 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 688 } 689 690 static void 691 sbp_login_callout(void *arg) 692 { 693 struct sbp_dev *sdev = (struct sbp_dev *)arg; 694 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 695 } 696 697 static void 698 sbp_login(struct sbp_dev *sdev) 699 { 700 struct timeval delta; 701 struct timeval t; 702 int ticks = 0; 703 704 microtime(&delta); 705 timevalsub(&delta, &sdev->target->sbp->last_busreset); 706 t.tv_sec = login_delay / 1000; 707 t.tv_usec = (login_delay % 1000) * 1000; 708 timevalsub(&t, &delta); 709 if (t.tv_sec >= 0 && t.tv_usec > 0) 710 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 711 SBP_DEBUG(0) 712 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 713 (intmax_t)t.tv_sec, t.tv_usec, ticks); 714 END_DEBUG 715 callout_reset(&sdev->login_callout, ticks, 716 sbp_login_callout, (void *)(sdev)); 717 } 718 719 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 720 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 721 722 static void 723 sbp_probe_target(void *arg) 724 { 725 struct sbp_target *target = (struct sbp_target *)arg; 726 struct sbp_softc *sbp = target->sbp; 727 struct sbp_dev *sdev; 728 int i, alive; 729 730 alive = SBP_FWDEV_ALIVE(target->fwdev); 731 SBP_DEBUG(1) 732 device_printf(sbp->fd.dev, "%s %d%salive\n", 733 __func__, target->target_id, 734 (!alive) ? " not " : ""); 735 END_DEBUG 736 737 sbp = target->sbp; 738 sbp_alloc_lun(target); 739 740 /* XXX untimeout mgm_ocb and dequeue */ 741 for (i=0; i < target->num_lun; i++) { 742 sdev = target->luns[i]; 743 if (sdev == NULL) 744 continue; 745 if (alive && (sdev->status != SBP_DEV_DEAD)) { 746 if (sdev->path != NULL) { 747 SBP_LOCK(sbp); 748 xpt_freeze_devq(sdev->path, 1); 749 sdev->freeze ++; 750 SBP_UNLOCK(sbp); 751 } 752 sbp_probe_lun(sdev); 753 sbp_show_sdev_info(sdev); 754 755 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 756 switch (sdev->status) { 757 case SBP_DEV_RESET: 758 /* new or revived target */ 759 if (auto_login) 760 sbp_login(sdev); 761 break; 762 case SBP_DEV_TOATTACH: 763 case SBP_DEV_PROBE: 764 case SBP_DEV_ATTACHED: 765 case SBP_DEV_RETRY: 766 default: 767 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 768 break; 769 } 770 } else { 771 switch (sdev->status) { 772 case SBP_DEV_ATTACHED: 773 SBP_DEBUG(0) 774 /* the device has gone */ 775 device_printf(sbp->fd.dev, "%s: lost target\n", 776 __func__); 777 END_DEBUG 778 if (sdev->path) { 779 SBP_LOCK(sbp); 780 xpt_freeze_devq(sdev->path, 1); 781 sdev->freeze ++; 782 SBP_UNLOCK(sbp); 783 } 784 sdev->status = SBP_DEV_RETRY; 785 sbp_cam_detach_sdev(sdev); 786 sbp_free_sdev(sdev); 787 target->luns[i] = NULL; 788 break; 789 case SBP_DEV_PROBE: 790 case SBP_DEV_TOATTACH: 791 sdev->status = SBP_DEV_RESET; 792 break; 793 case SBP_DEV_RETRY: 794 case SBP_DEV_RESET: 795 case SBP_DEV_DEAD: 796 break; 797 } 798 } 799 } 800 } 801 802 static void 803 sbp_post_busreset(void *arg) 804 { 805 struct sbp_softc *sbp; 806 807 sbp = (struct sbp_softc *)arg; 808 SBP_DEBUG(0) 809 printf("sbp_post_busreset\n"); 810 END_DEBUG 811 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 812 SBP_LOCK(sbp); 813 xpt_freeze_simq(sbp->sim, /*count*/1); 814 sbp->sim->flags |= SIMQ_FREEZED; 815 SBP_UNLOCK(sbp); 816 } 817 microtime(&sbp->last_busreset); 818 } 819 820 static void 821 sbp_post_explore(void *arg) 822 { 823 struct sbp_softc *sbp = (struct sbp_softc *)arg; 824 struct sbp_target *target; 825 struct fw_device *fwdev; 826 int i, alive; 827 828 SBP_DEBUG(0) 829 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 830 END_DEBUG 831 /* We need physical access */ 832 if (!firewire_phydma_enable) 833 return; 834 835 if (sbp_cold > 0) 836 sbp_cold --; 837 838 #if 0 839 /* 840 * XXX don't let CAM the bus rest. 841 * CAM tries to do something with freezed (DEV_RETRY) devices. 842 */ 843 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 844 #endif 845 846 /* Garbage Collection */ 847 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 848 target = &sbp->targets[i]; 849 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 850 if (target->fwdev == NULL || target->fwdev == fwdev) 851 break; 852 if (fwdev == NULL) { 853 /* device has removed in lower driver */ 854 sbp_cam_detach_target(target); 855 sbp_free_target(target); 856 } 857 } 858 /* traverse device list */ 859 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 860 SBP_DEBUG(0) 861 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 862 __func__, fwdev->eui.hi, fwdev->eui.lo, 863 (fwdev->status != FWDEVATTACHED) ? "not" : "", 864 fwdev->status); 865 END_DEBUG 866 alive = SBP_FWDEV_ALIVE(fwdev); 867 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 868 target = &sbp->targets[i]; 869 if(target->fwdev == fwdev ) { 870 /* known target */ 871 break; 872 } 873 } 874 if(i == SBP_NUM_TARGETS){ 875 if (alive) { 876 /* new target */ 877 target = sbp_alloc_target(sbp, fwdev); 878 if (target == NULL) 879 continue; 880 } else { 881 continue; 882 } 883 } 884 sbp_probe_target((void *)target); 885 if (target->num_lun == 0) 886 sbp_free_target(target); 887 } 888 SBP_LOCK(sbp); 889 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 890 sbp->sim->flags &= ~SIMQ_FREEZED; 891 SBP_UNLOCK(sbp); 892 } 893 894 #if NEED_RESPONSE 895 static void 896 sbp_loginres_callback(struct fw_xfer *xfer){ 897 int s; 898 struct sbp_dev *sdev; 899 sdev = (struct sbp_dev *)xfer->sc; 900 SBP_DEBUG(1) 901 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 902 END_DEBUG 903 /* recycle */ 904 s = splfw(); 905 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 906 splx(s); 907 return; 908 } 909 #endif 910 911 static __inline void 912 sbp_xfer_free(struct fw_xfer *xfer) 913 { 914 struct sbp_dev *sdev; 915 int s; 916 917 sdev = (struct sbp_dev *)xfer->sc; 918 fw_xfer_unload(xfer); 919 s = splfw(); 920 SBP_LOCK(sdev->target->sbp); 921 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 922 SBP_UNLOCK(sdev->target->sbp); 923 splx(s); 924 } 925 926 static void 927 sbp_reset_start_callback(struct fw_xfer *xfer) 928 { 929 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 930 struct sbp_target *target = sdev->target; 931 int i; 932 933 if (xfer->resp != 0) { 934 device_printf(sdev->target->sbp->fd.dev, 935 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 936 } 937 938 for (i = 0; i < target->num_lun; i++) { 939 tsdev = target->luns[i]; 940 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 941 sbp_login(tsdev); 942 } 943 } 944 945 static void 946 sbp_reset_start(struct sbp_dev *sdev) 947 { 948 struct fw_xfer *xfer; 949 struct fw_pkt *fp; 950 951 SBP_DEBUG(0) 952 device_printf(sdev->target->sbp->fd.dev, 953 "%s:%s\n", __func__,sdev->bustgtlun); 954 END_DEBUG 955 956 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 957 xfer->hand = sbp_reset_start_callback; 958 fp = &xfer->send.hdr; 959 fp->mode.wreqq.dest_hi = 0xffff; 960 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 961 fp->mode.wreqq.data = htonl(0xf); 962 fw_asyreq(xfer->fc, -1, xfer); 963 } 964 965 static void 966 sbp_mgm_callback(struct fw_xfer *xfer) 967 { 968 struct sbp_dev *sdev; 969 int resp; 970 971 sdev = (struct sbp_dev *)xfer->sc; 972 973 SBP_DEBUG(1) 974 device_printf(sdev->target->sbp->fd.dev, 975 "%s:%s\n", __func__, sdev->bustgtlun); 976 END_DEBUG 977 resp = xfer->resp; 978 sbp_xfer_free(xfer); 979 return; 980 } 981 982 static struct sbp_dev * 983 sbp_next_dev(struct sbp_target *target, int lun) 984 { 985 struct sbp_dev **sdevp; 986 int i; 987 988 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 989 i++, sdevp++) 990 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 991 return(*sdevp); 992 return(NULL); 993 } 994 995 #define SCAN_PRI 1 996 static void 997 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 998 { 999 struct sbp_target *target; 1000 struct sbp_dev *sdev; 1001 1002 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 1003 target = sdev->target; 1004 SBP_DEBUG(0) 1005 device_printf(sdev->target->sbp->fd.dev, 1006 "%s:%s\n", __func__, sdev->bustgtlun); 1007 END_DEBUG 1008 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1009 sdev->status = SBP_DEV_ATTACHED; 1010 } else { 1011 device_printf(sdev->target->sbp->fd.dev, 1012 "%s:%s failed\n", __func__, sdev->bustgtlun); 1013 } 1014 sdev = sbp_next_dev(target, sdev->lun_id + 1); 1015 if (sdev == NULL) { 1016 free(ccb, M_SBP); 1017 return; 1018 } 1019 /* reuse ccb */ 1020 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1021 ccb->ccb_h.ccb_sdev_ptr = sdev; 1022 xpt_action(ccb); 1023 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1024 sdev->freeze = 1; 1025 } 1026 1027 static void 1028 sbp_cam_scan_target(void *arg) 1029 { 1030 struct sbp_target *target = (struct sbp_target *)arg; 1031 struct sbp_dev *sdev; 1032 union ccb *ccb; 1033 1034 sdev = sbp_next_dev(target, 0); 1035 if (sdev == NULL) { 1036 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1037 target->target_id); 1038 return; 1039 } 1040 SBP_DEBUG(0) 1041 device_printf(sdev->target->sbp->fd.dev, 1042 "%s:%s\n", __func__, sdev->bustgtlun); 1043 END_DEBUG 1044 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1045 if (ccb == NULL) { 1046 printf("sbp_cam_scan_target: malloc failed\n"); 1047 return; 1048 } 1049 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1050 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1051 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1052 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1053 ccb->crcn.flags = CAM_FLAG_NONE; 1054 ccb->ccb_h.ccb_sdev_ptr = sdev; 1055 1056 /* The scan is in progress now. */ 1057 SBP_LOCK(target->sbp); 1058 xpt_action(ccb); 1059 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1060 sdev->freeze = 1; 1061 SBP_UNLOCK(target->sbp); 1062 } 1063 1064 static __inline void 1065 sbp_scan_dev(struct sbp_dev *sdev) 1066 { 1067 sdev->status = SBP_DEV_PROBE; 1068 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000, 1069 sbp_cam_scan_target, (void *)sdev->target); 1070 } 1071 1072 static void 1073 sbp_do_attach(struct fw_xfer *xfer) 1074 { 1075 struct sbp_dev *sdev; 1076 struct sbp_target *target; 1077 struct sbp_softc *sbp; 1078 1079 sdev = (struct sbp_dev *)xfer->sc; 1080 target = sdev->target; 1081 sbp = target->sbp; 1082 SBP_DEBUG(0) 1083 device_printf(sdev->target->sbp->fd.dev, 1084 "%s:%s\n", __func__, sdev->bustgtlun); 1085 END_DEBUG 1086 sbp_xfer_free(xfer); 1087 1088 if (sdev->path == NULL) 1089 xpt_create_path(&sdev->path, xpt_periph, 1090 cam_sim_path(target->sbp->sim), 1091 target->target_id, sdev->lun_id); 1092 1093 /* 1094 * Let CAM scan the bus if we are in the boot process. 1095 * XXX xpt_scan_bus cannot detect LUN larger than 0 1096 * if LUN 0 doesn't exists. 1097 */ 1098 if (sbp_cold > 0) { 1099 sdev->status = SBP_DEV_ATTACHED; 1100 return; 1101 } 1102 1103 sbp_scan_dev(sdev); 1104 return; 1105 } 1106 1107 static void 1108 sbp_agent_reset_callback(struct fw_xfer *xfer) 1109 { 1110 struct sbp_dev *sdev; 1111 1112 sdev = (struct sbp_dev *)xfer->sc; 1113 SBP_DEBUG(1) 1114 device_printf(sdev->target->sbp->fd.dev, 1115 "%s:%s\n", __func__, sdev->bustgtlun); 1116 END_DEBUG 1117 if (xfer->resp != 0) { 1118 device_printf(sdev->target->sbp->fd.dev, 1119 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1120 } 1121 1122 sbp_xfer_free(xfer); 1123 if (sdev->path) { 1124 SBP_LOCK(sdev->target->sbp); 1125 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1126 sdev->freeze = 0; 1127 SBP_UNLOCK(sdev->target->sbp); 1128 } 1129 } 1130 1131 static void 1132 sbp_agent_reset(struct sbp_dev *sdev) 1133 { 1134 struct fw_xfer *xfer; 1135 struct fw_pkt *fp; 1136 1137 SBP_DEBUG(0) 1138 device_printf(sdev->target->sbp->fd.dev, 1139 "%s:%s\n", __func__, sdev->bustgtlun); 1140 END_DEBUG 1141 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1142 if (xfer == NULL) 1143 return; 1144 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1145 xfer->hand = sbp_agent_reset_callback; 1146 else 1147 xfer->hand = sbp_do_attach; 1148 fp = &xfer->send.hdr; 1149 fp->mode.wreqq.data = htonl(0xf); 1150 fw_asyreq(xfer->fc, -1, xfer); 1151 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1152 } 1153 1154 static void 1155 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1156 { 1157 struct sbp_dev *sdev; 1158 1159 sdev = (struct sbp_dev *)xfer->sc; 1160 SBP_DEBUG(1) 1161 device_printf(sdev->target->sbp->fd.dev, 1162 "%s:%s\n", __func__, sdev->bustgtlun); 1163 END_DEBUG 1164 sbp_xfer_free(xfer); 1165 sbp_agent_reset(sdev); 1166 } 1167 1168 static void 1169 sbp_busy_timeout(struct sbp_dev *sdev) 1170 { 1171 struct fw_pkt *fp; 1172 struct fw_xfer *xfer; 1173 SBP_DEBUG(0) 1174 device_printf(sdev->target->sbp->fd.dev, 1175 "%s:%s\n", __func__, sdev->bustgtlun); 1176 END_DEBUG 1177 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1178 1179 xfer->hand = sbp_busy_timeout_callback; 1180 fp = &xfer->send.hdr; 1181 fp->mode.wreqq.dest_hi = 0xffff; 1182 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1183 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1184 fw_asyreq(xfer->fc, -1, xfer); 1185 } 1186 1187 static void 1188 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1189 { 1190 struct sbp_dev *sdev; 1191 sdev = (struct sbp_dev *)xfer->sc; 1192 1193 SBP_DEBUG(2) 1194 device_printf(sdev->target->sbp->fd.dev, 1195 "%s:%s\n", __func__, sdev->bustgtlun); 1196 END_DEBUG 1197 if (xfer->resp != 0) { 1198 /* XXX */ 1199 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1200 } 1201 sbp_xfer_free(xfer); 1202 1203 SBP_LOCK(sdev->target->sbp); 1204 sdev->flags &= ~ORB_POINTER_ACTIVE; 1205 1206 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1207 struct sbp_ocb *ocb; 1208 1209 sdev->flags &= ~ORB_POINTER_NEED; 1210 ocb = STAILQ_FIRST(&sdev->ocbs); 1211 if (ocb != NULL) 1212 sbp_orb_pointer(sdev, ocb); 1213 } 1214 SBP_UNLOCK(sdev->target->sbp); 1215 return; 1216 } 1217 1218 static void 1219 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1220 { 1221 struct fw_xfer *xfer; 1222 struct fw_pkt *fp; 1223 SBP_DEBUG(1) 1224 device_printf(sdev->target->sbp->fd.dev, 1225 "%s:%s 0x%08x\n", 1226 __func__, sdev->bustgtlun, 1227 (uint32_t)ocb->bus_addr); 1228 END_DEBUG 1229 1230 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 1231 1232 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1233 SBP_DEBUG(0) 1234 printf("%s: orb pointer active\n", __func__); 1235 END_DEBUG 1236 sdev->flags |= ORB_POINTER_NEED; 1237 return; 1238 } 1239 1240 sdev->flags |= ORB_POINTER_ACTIVE; 1241 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08); 1242 if (xfer == NULL) 1243 return; 1244 xfer->hand = sbp_orb_pointer_callback; 1245 1246 fp = &xfer->send.hdr; 1247 fp->mode.wreqb.len = 8; 1248 fp->mode.wreqb.extcode = 0; 1249 xfer->send.payload[0] = 1250 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1251 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1252 1253 /* 1254 * sbp_xfer_free() will attempt to acquire 1255 * the SBP lock on entrance. Also, this removes 1256 * a LOR between the firewire layer and sbp 1257 */ 1258 SBP_UNLOCK(sdev->target->sbp); 1259 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1260 sbp_xfer_free(xfer); 1261 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1262 xpt_done(ocb->ccb); 1263 } 1264 SBP_LOCK(sdev->target->sbp); 1265 } 1266 1267 static void 1268 sbp_doorbell_callback(struct fw_xfer *xfer) 1269 { 1270 struct sbp_dev *sdev; 1271 sdev = (struct sbp_dev *)xfer->sc; 1272 1273 SBP_DEBUG(1) 1274 device_printf(sdev->target->sbp->fd.dev, 1275 "%s:%s\n", __func__, sdev->bustgtlun); 1276 END_DEBUG 1277 if (xfer->resp != 0) { 1278 /* XXX */ 1279 device_printf(sdev->target->sbp->fd.dev, 1280 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1281 } 1282 sbp_xfer_free(xfer); 1283 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1284 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1285 sdev->flags &= ~ORB_DOORBELL_NEED; 1286 SBP_LOCK(sdev->target->sbp); 1287 sbp_doorbell(sdev); 1288 SBP_UNLOCK(sdev->target->sbp); 1289 } 1290 return; 1291 } 1292 1293 static void 1294 sbp_doorbell(struct sbp_dev *sdev) 1295 { 1296 struct fw_xfer *xfer; 1297 struct fw_pkt *fp; 1298 SBP_DEBUG(1) 1299 device_printf(sdev->target->sbp->fd.dev, 1300 "%s:%s\n", __func__, sdev->bustgtlun); 1301 END_DEBUG 1302 1303 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1304 sdev->flags |= ORB_DOORBELL_NEED; 1305 return; 1306 } 1307 sdev->flags |= ORB_DOORBELL_ACTIVE; 1308 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10); 1309 if (xfer == NULL) 1310 return; 1311 xfer->hand = sbp_doorbell_callback; 1312 fp = &xfer->send.hdr; 1313 fp->mode.wreqq.data = htonl(0xf); 1314 fw_asyreq(xfer->fc, -1, xfer); 1315 } 1316 1317 static struct fw_xfer * 1318 sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset) 1319 { 1320 struct fw_xfer *xfer; 1321 struct fw_pkt *fp; 1322 struct sbp_target *target; 1323 int s, new = 0; 1324 1325 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 1326 1327 target = sdev->target; 1328 s = splfw(); 1329 xfer = STAILQ_FIRST(&target->xferlist); 1330 if (xfer == NULL) { 1331 if (target->n_xfer > 5 /* XXX */) { 1332 printf("sbp: no more xfer for this target\n"); 1333 splx(s); 1334 return(NULL); 1335 } 1336 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1337 if(xfer == NULL){ 1338 printf("sbp: fw_xfer_alloc_buf failed\n"); 1339 splx(s); 1340 return NULL; 1341 } 1342 target->n_xfer ++; 1343 if (debug) 1344 printf("sbp: alloc %d xfer\n", target->n_xfer); 1345 new = 1; 1346 } else { 1347 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1348 } 1349 splx(s); 1350 1351 if (new) { 1352 xfer->recv.pay_len = 0; 1353 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1354 xfer->fc = sdev->target->sbp->fd.fc; 1355 } 1356 1357 if (tcode == FWTCODE_WREQB) 1358 xfer->send.pay_len = 8; 1359 else 1360 xfer->send.pay_len = 0; 1361 1362 xfer->sc = (caddr_t)sdev; 1363 fp = &xfer->send.hdr; 1364 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1365 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1366 fp->mode.wreqq.tlrt = 0; 1367 fp->mode.wreqq.tcode = tcode; 1368 fp->mode.wreqq.pri = 0; 1369 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1370 1371 return xfer; 1372 1373 } 1374 1375 static struct fw_xfer * 1376 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1377 { 1378 struct sbp_softc *sbp = sdev->target->sbp; 1379 struct fw_xfer *xfer; 1380 1381 SBP_LOCK(sbp); 1382 xfer = sbp_write_cmd_locked(sdev, tcode, offset); 1383 SBP_UNLOCK(sbp); 1384 1385 return (xfer); 1386 } 1387 1388 static void 1389 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1390 { 1391 struct fw_xfer *xfer; 1392 struct fw_pkt *fp; 1393 struct sbp_ocb *ocb; 1394 struct sbp_target *target; 1395 int s, nid; 1396 1397 target = sdev->target; 1398 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1399 1400 s = splfw(); 1401 SBP_LOCK(target->sbp); 1402 if (func == ORB_FUN_RUNQUEUE) { 1403 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1404 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1405 SBP_UNLOCK(target->sbp); 1406 splx(s); 1407 return; 1408 } 1409 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1410 SBP_UNLOCK(target->sbp); 1411 goto start; 1412 } 1413 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1414 SBP_UNLOCK(target->sbp); 1415 splx(s); 1416 /* XXX */ 1417 return; 1418 } 1419 SBP_UNLOCK(target->sbp); 1420 ocb->flags = OCB_ACT_MGM; 1421 ocb->sdev = sdev; 1422 1423 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1424 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1425 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1426 1427 SBP_DEBUG(0) 1428 device_printf(sdev->target->sbp->fd.dev, 1429 "%s:%s %s\n", 1430 __func__,sdev->bustgtlun, 1431 orb_fun_name[(func>>16)&0xf]); 1432 END_DEBUG 1433 switch (func) { 1434 case ORB_FUN_LGI: 1435 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1436 ocb->orb[2] = htonl(nid << 16); 1437 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1438 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1439 if (ex_login) 1440 ocb->orb[4] |= htonl(ORB_EXV); 1441 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1442 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1443 break; 1444 case ORB_FUN_ATA: 1445 ocb->orb[0] = htonl((0 << 16) | 0); 1446 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1447 /* fall through */ 1448 case ORB_FUN_RCN: 1449 case ORB_FUN_LGO: 1450 case ORB_FUN_LUR: 1451 case ORB_FUN_RST: 1452 case ORB_FUN_ATS: 1453 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1454 break; 1455 } 1456 1457 if (target->mgm_ocb_cur != NULL) { 1458 /* there is a standing ORB */ 1459 SBP_LOCK(target->sbp); 1460 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1461 SBP_UNLOCK(target->sbp); 1462 splx(s); 1463 return; 1464 } 1465 start: 1466 target->mgm_ocb_cur = ocb; 1467 splx(s); 1468 1469 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1470 sbp_mgm_timeout, (caddr_t)ocb); 1471 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1472 if(xfer == NULL){ 1473 return; 1474 } 1475 xfer->hand = sbp_mgm_callback; 1476 1477 fp = &xfer->send.hdr; 1478 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1479 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1480 fp->mode.wreqb.len = 8; 1481 fp->mode.wreqb.extcode = 0; 1482 xfer->send.payload[0] = htonl(nid << 16); 1483 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1484 1485 fw_asyreq(xfer->fc, -1, xfer); 1486 } 1487 1488 static void 1489 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1490 { 1491 struct ccb_scsiio *csio; 1492 1493 csio = &ocb->ccb->csio; 1494 printf("%s:%d:%d XPT_SCSI_IO: " 1495 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1496 ", flags: 0x%02x, " 1497 "%db cmd/%db data/%db sense\n", 1498 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1499 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1500 csio->cdb_io.cdb_bytes[0], 1501 csio->cdb_io.cdb_bytes[1], 1502 csio->cdb_io.cdb_bytes[2], 1503 csio->cdb_io.cdb_bytes[3], 1504 csio->cdb_io.cdb_bytes[4], 1505 csio->cdb_io.cdb_bytes[5], 1506 csio->cdb_io.cdb_bytes[6], 1507 csio->cdb_io.cdb_bytes[7], 1508 csio->cdb_io.cdb_bytes[8], 1509 csio->cdb_io.cdb_bytes[9], 1510 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1511 csio->cdb_len, csio->dxfer_len, 1512 csio->sense_len); 1513 } 1514 1515 static void 1516 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1517 { 1518 struct sbp_cmd_status *sbp_cmd_status; 1519 struct scsi_sense_data_fixed *sense; 1520 1521 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1522 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; 1523 1524 SBP_DEBUG(0) 1525 sbp_print_scsi_cmd(ocb); 1526 /* XXX need decode status */ 1527 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1528 ocb->sdev->bustgtlun, 1529 sbp_cmd_status->status, 1530 sbp_cmd_status->sfmt, 1531 sbp_cmd_status->valid, 1532 sbp_cmd_status->s_key, 1533 sbp_cmd_status->s_code, 1534 sbp_cmd_status->s_qlfr, 1535 sbp_status->len); 1536 END_DEBUG 1537 1538 switch (sbp_cmd_status->status) { 1539 case SCSI_STATUS_CHECK_COND: 1540 case SCSI_STATUS_BUSY: 1541 case SCSI_STATUS_CMD_TERMINATED: 1542 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1543 sense->error_code = SSD_CURRENT_ERROR; 1544 }else{ 1545 sense->error_code = SSD_DEFERRED_ERROR; 1546 } 1547 if(sbp_cmd_status->valid) 1548 sense->error_code |= SSD_ERRCODE_VALID; 1549 sense->flags = sbp_cmd_status->s_key; 1550 if(sbp_cmd_status->mark) 1551 sense->flags |= SSD_FILEMARK; 1552 if(sbp_cmd_status->eom) 1553 sense->flags |= SSD_EOM; 1554 if(sbp_cmd_status->ill_len) 1555 sense->flags |= SSD_ILI; 1556 1557 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1558 1559 if (sbp_status->len <= 1) 1560 /* XXX not scsi status. shouldn't be happened */ 1561 sense->extra_len = 0; 1562 else if (sbp_status->len <= 4) 1563 /* add_sense_code(_qual), info, cmd_spec_info */ 1564 sense->extra_len = 6; 1565 else 1566 /* fru, sense_key_spec */ 1567 sense->extra_len = 10; 1568 1569 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1570 1571 sense->add_sense_code = sbp_cmd_status->s_code; 1572 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1573 sense->fru = sbp_cmd_status->fru; 1574 1575 bcopy(&sbp_cmd_status->s_keydep[0], 1576 &sense->sense_key_spec[0], 3); 1577 1578 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1579 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1580 | CAM_AUTOSNS_VALID; 1581 /* 1582 { 1583 uint8_t j, *tmp; 1584 tmp = sense; 1585 for( j = 0 ; j < 32 ; j+=8){ 1586 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1587 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1588 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1589 } 1590 1591 } 1592 */ 1593 break; 1594 default: 1595 device_printf(ocb->sdev->target->sbp->fd.dev, 1596 "%s:%s unknown scsi status 0x%x\n", 1597 __func__, ocb->sdev->bustgtlun, 1598 sbp_cmd_status->status); 1599 } 1600 } 1601 1602 static void 1603 sbp_fix_inq_data(struct sbp_ocb *ocb) 1604 { 1605 union ccb *ccb; 1606 struct sbp_dev *sdev; 1607 struct scsi_inquiry_data *inq; 1608 1609 ccb = ocb->ccb; 1610 sdev = ocb->sdev; 1611 1612 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1613 return; 1614 SBP_DEBUG(1) 1615 device_printf(sdev->target->sbp->fd.dev, 1616 "%s:%s\n", __func__, sdev->bustgtlun); 1617 END_DEBUG 1618 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1619 switch (SID_TYPE(inq)) { 1620 case T_DIRECT: 1621 #if 0 1622 /* 1623 * XXX Convert Direct Access device to RBC. 1624 * I've never seen FireWire DA devices which support READ_6. 1625 */ 1626 if (SID_TYPE(inq) == T_DIRECT) 1627 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1628 #endif 1629 /* fall through */ 1630 case T_RBC: 1631 /* 1632 * Override vendor/product/revision information. 1633 * Some devices sometimes return strange strings. 1634 */ 1635 #if 1 1636 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1637 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1638 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1639 #endif 1640 break; 1641 } 1642 /* 1643 * Force to enable/disable tagged queuing. 1644 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1645 */ 1646 if (sbp_tags > 0) 1647 inq->flags |= SID_CmdQue; 1648 else if (sbp_tags < 0) 1649 inq->flags &= ~SID_CmdQue; 1650 1651 } 1652 1653 static void 1654 sbp_recv1(struct fw_xfer *xfer) 1655 { 1656 struct fw_pkt *rfp; 1657 #if NEED_RESPONSE 1658 struct fw_pkt *sfp; 1659 #endif 1660 struct sbp_softc *sbp; 1661 struct sbp_dev *sdev; 1662 struct sbp_ocb *ocb; 1663 struct sbp_login_res *login_res = NULL; 1664 struct sbp_status *sbp_status; 1665 struct sbp_target *target; 1666 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1667 uint32_t addr; 1668 /* 1669 uint32_t *ld; 1670 ld = xfer->recv.buf; 1671 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1672 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1673 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1674 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1675 */ 1676 sbp = (struct sbp_softc *)xfer->sc; 1677 if (xfer->resp != 0){ 1678 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1679 goto done0; 1680 } 1681 if (xfer->recv.payload == NULL){ 1682 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1683 goto done0; 1684 } 1685 rfp = &xfer->recv.hdr; 1686 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1687 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1688 goto done0; 1689 } 1690 sbp_status = (struct sbp_status *)xfer->recv.payload; 1691 addr = rfp->mode.wreqb.dest_lo; 1692 SBP_DEBUG(2) 1693 printf("received address 0x%x\n", addr); 1694 END_DEBUG 1695 t = SBP_ADDR2TRG(addr); 1696 if (t >= SBP_NUM_TARGETS) { 1697 device_printf(sbp->fd.dev, 1698 "sbp_recv1: invalid target %d\n", t); 1699 goto done0; 1700 } 1701 target = &sbp->targets[t]; 1702 l = SBP_ADDR2LUN(addr); 1703 if (l >= target->num_lun || target->luns[l] == NULL) { 1704 device_printf(sbp->fd.dev, 1705 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1706 goto done0; 1707 } 1708 sdev = target->luns[l]; 1709 1710 ocb = NULL; 1711 switch (sbp_status->src) { 1712 case 0: 1713 case 1: 1714 /* check mgm_ocb_cur first */ 1715 ocb = target->mgm_ocb_cur; 1716 if (ocb != NULL) { 1717 if (OCB_MATCH(ocb, sbp_status)) { 1718 callout_stop(&target->mgm_ocb_timeout); 1719 target->mgm_ocb_cur = NULL; 1720 break; 1721 } 1722 } 1723 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1724 if (ocb == NULL) { 1725 device_printf(sdev->target->sbp->fd.dev, 1726 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1727 "%s:%s No ocb(%lx) on the queue\n", 1728 #else 1729 "%s:%s No ocb(%x) on the queue\n", 1730 #endif 1731 __func__,sdev->bustgtlun, 1732 ntohl(sbp_status->orb_lo)); 1733 } 1734 break; 1735 case 2: 1736 /* unsolicit */ 1737 device_printf(sdev->target->sbp->fd.dev, 1738 "%s:%s unsolicit status received\n", 1739 __func__, sdev->bustgtlun); 1740 break; 1741 default: 1742 device_printf(sdev->target->sbp->fd.dev, 1743 "%s:%s unknown sbp_status->src\n", 1744 __func__, sdev->bustgtlun); 1745 } 1746 1747 status_valid0 = (sbp_status->src < 2 1748 && sbp_status->resp == ORB_RES_CMPL 1749 && sbp_status->dead == 0); 1750 status_valid = (status_valid0 && sbp_status->status == 0); 1751 1752 if (!status_valid0 || debug > 2){ 1753 int status; 1754 SBP_DEBUG(0) 1755 device_printf(sdev->target->sbp->fd.dev, 1756 "%s:%s ORB status src:%x resp:%x dead:%x" 1757 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1758 " len:%x stat:%x orb:%x%08lx\n", 1759 #else 1760 " len:%x stat:%x orb:%x%08x\n", 1761 #endif 1762 __func__, sdev->bustgtlun, 1763 sbp_status->src, sbp_status->resp, sbp_status->dead, 1764 sbp_status->len, sbp_status->status, 1765 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1766 END_DEBUG 1767 device_printf(sdev->target->sbp->fd.dev, 1768 "%s\n", sdev->bustgtlun); 1769 status = sbp_status->status; 1770 switch(sbp_status->resp) { 1771 case 0: 1772 if (status > MAX_ORB_STATUS0) 1773 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1774 else 1775 printf("%s\n", orb_status0[status]); 1776 break; 1777 case 1: 1778 printf("Obj: %s, Error: %s\n", 1779 orb_status1_object[(status>>6) & 3], 1780 orb_status1_serial_bus_error[status & 0xf]); 1781 break; 1782 case 2: 1783 printf("Illegal request\n"); 1784 break; 1785 case 3: 1786 printf("Vendor dependent\n"); 1787 break; 1788 default: 1789 printf("unknown respose code %d\n", sbp_status->resp); 1790 } 1791 } 1792 1793 /* we have to reset the fetch agent if it's dead */ 1794 if (sbp_status->dead) { 1795 if (sdev->path) { 1796 SBP_LOCK(sbp); 1797 xpt_freeze_devq(sdev->path, 1); 1798 sdev->freeze ++; 1799 SBP_UNLOCK(sbp); 1800 } 1801 reset_agent = 1; 1802 } 1803 1804 if (ocb == NULL) 1805 goto done; 1806 1807 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1808 case ORB_FMT_NOP: 1809 break; 1810 case ORB_FMT_VED: 1811 break; 1812 case ORB_FMT_STD: 1813 switch(ocb->flags) { 1814 case OCB_ACT_MGM: 1815 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1816 reset_agent = 0; 1817 switch(orb_fun) { 1818 case ORB_FUN_LGI: 1819 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1820 login_res = sdev->login; 1821 login_res->len = ntohs(login_res->len); 1822 login_res->id = ntohs(login_res->id); 1823 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1824 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1825 if (status_valid) { 1826 SBP_DEBUG(0) 1827 device_printf(sdev->target->sbp->fd.dev, 1828 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1829 __func__, sdev->bustgtlun, 1830 login_res->len, login_res->id, 1831 login_res->cmd_hi, login_res->cmd_lo, 1832 ntohs(login_res->recon_hold)); 1833 END_DEBUG 1834 sbp_busy_timeout(sdev); 1835 } else { 1836 /* forgot logout? */ 1837 device_printf(sdev->target->sbp->fd.dev, 1838 "%s:%s login failed\n", 1839 __func__, sdev->bustgtlun); 1840 sdev->status = SBP_DEV_RESET; 1841 } 1842 break; 1843 case ORB_FUN_RCN: 1844 login_res = sdev->login; 1845 if (status_valid) { 1846 SBP_DEBUG(0) 1847 device_printf(sdev->target->sbp->fd.dev, 1848 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1849 __func__, sdev->bustgtlun, 1850 login_res->len, login_res->id, 1851 login_res->cmd_hi, login_res->cmd_lo); 1852 END_DEBUG 1853 if (sdev->status == SBP_DEV_ATTACHED) 1854 sbp_scan_dev(sdev); 1855 else 1856 sbp_agent_reset(sdev); 1857 } else { 1858 /* reconnection hold time exceed? */ 1859 SBP_DEBUG(0) 1860 device_printf(sdev->target->sbp->fd.dev, 1861 "%s:%s reconnect failed\n", 1862 __func__, sdev->bustgtlun); 1863 END_DEBUG 1864 sbp_login(sdev); 1865 } 1866 break; 1867 case ORB_FUN_LGO: 1868 sdev->status = SBP_DEV_RESET; 1869 break; 1870 case ORB_FUN_RST: 1871 sbp_busy_timeout(sdev); 1872 break; 1873 case ORB_FUN_LUR: 1874 case ORB_FUN_ATA: 1875 case ORB_FUN_ATS: 1876 sbp_agent_reset(sdev); 1877 break; 1878 default: 1879 device_printf(sdev->target->sbp->fd.dev, 1880 "%s:%s unknown function %d\n", 1881 __func__, sdev->bustgtlun, orb_fun); 1882 break; 1883 } 1884 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1885 break; 1886 case OCB_ACT_CMD: 1887 sdev->timeout = 0; 1888 if(ocb->ccb != NULL){ 1889 union ccb *ccb; 1890 1891 ccb = ocb->ccb; 1892 if(sbp_status->len > 1){ 1893 sbp_scsi_status(sbp_status, ocb); 1894 }else{ 1895 if(sbp_status->resp != ORB_RES_CMPL){ 1896 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1897 }else{ 1898 ccb->ccb_h.status = CAM_REQ_CMP; 1899 } 1900 } 1901 /* fix up inq data */ 1902 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1903 sbp_fix_inq_data(ocb); 1904 SBP_LOCK(sbp); 1905 xpt_done(ccb); 1906 SBP_UNLOCK(sbp); 1907 } 1908 break; 1909 default: 1910 break; 1911 } 1912 } 1913 1914 if (!use_doorbell) 1915 sbp_free_ocb(sdev, ocb); 1916 done: 1917 if (reset_agent) 1918 sbp_agent_reset(sdev); 1919 1920 done0: 1921 xfer->recv.pay_len = SBP_RECV_LEN; 1922 /* The received packet is usually small enough to be stored within 1923 * the buffer. In that case, the controller return ack_complete and 1924 * no respose is necessary. 1925 * 1926 * XXX fwohci.c and firewire.c should inform event_code such as 1927 * ack_complete or ack_pending to upper driver. 1928 */ 1929 #if NEED_RESPONSE 1930 xfer->send.off = 0; 1931 sfp = (struct fw_pkt *)xfer->send.buf; 1932 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1933 xfer->dst = sfp->mode.wres.dst; 1934 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1935 xfer->hand = sbp_loginres_callback; 1936 1937 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1938 sfp->mode.wres.tcode = FWTCODE_WRES; 1939 sfp->mode.wres.rtcode = 0; 1940 sfp->mode.wres.pri = 0; 1941 1942 fw_asyreq(xfer->fc, -1, xfer); 1943 #else 1944 /* recycle */ 1945 /* we don't need a lock here because bottom half is serialized */ 1946 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1947 #endif 1948 1949 return; 1950 1951 } 1952 1953 static void 1954 sbp_recv(struct fw_xfer *xfer) 1955 { 1956 int s; 1957 1958 s = splcam(); 1959 sbp_recv1(xfer); 1960 splx(s); 1961 } 1962 /* 1963 * sbp_attach() 1964 */ 1965 static int 1966 sbp_attach(device_t dev) 1967 { 1968 struct sbp_softc *sbp; 1969 struct cam_devq *devq; 1970 struct firewire_comm *fc; 1971 int i, s, error; 1972 1973 if (DFLTPHYS > SBP_MAXPHYS) 1974 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1975 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1976 SBP_MAXPHYS / 1024); 1977 1978 if (!firewire_phydma_enable) 1979 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1980 "for SBP over FireWire.\n"); 1981 SBP_DEBUG(0) 1982 printf("sbp_attach (cold=%d)\n", cold); 1983 END_DEBUG 1984 1985 if (cold) 1986 sbp_cold ++; 1987 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1988 bzero(sbp, sizeof(struct sbp_softc)); 1989 sbp->fd.dev = dev; 1990 sbp->fd.fc = fc = device_get_ivars(dev); 1991 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1992 1993 if (max_speed < 0) 1994 max_speed = fc->speed; 1995 1996 error = bus_dma_tag_create(/*parent*/fc->dmat, 1997 /* XXX shoud be 4 for sane backend? */ 1998 /*alignment*/1, 1999 /*boundary*/0, 2000 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 2001 /*highaddr*/BUS_SPACE_MAXADDR, 2002 /*filter*/NULL, /*filterarg*/NULL, 2003 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 2004 /*maxsegsz*/SBP_SEG_MAX, 2005 /*flags*/BUS_DMA_ALLOCNOW, 2006 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 2007 /*lockfunc*/busdma_lock_mutex, 2008 /*lockarg*/&sbp->mtx, 2009 #endif 2010 &sbp->dmat); 2011 if (error != 0) { 2012 printf("sbp_attach: Could not allocate DMA tag " 2013 "- error %d\n", error); 2014 return (ENOMEM); 2015 } 2016 2017 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 2018 if (devq == NULL) 2019 return (ENXIO); 2020 2021 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 2022 sbp->targets[i].fwdev = NULL; 2023 sbp->targets[i].luns = NULL; 2024 } 2025 2026 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 2027 device_get_unit(dev), 2028 &sbp->mtx, 2029 /*untagged*/ 1, 2030 /*tagged*/ SBP_QUEUE_LEN - 1, 2031 devq); 2032 2033 if (sbp->sim == NULL) { 2034 cam_simq_free(devq); 2035 return (ENXIO); 2036 } 2037 2038 SBP_LOCK(sbp); 2039 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 2040 goto fail; 2041 2042 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 2043 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2044 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2045 goto fail; 2046 } 2047 SBP_UNLOCK(sbp); 2048 2049 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 2050 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 2051 sbp->fwb.end = sbp->fwb.start + 0xffff; 2052 /* pre-allocate xfer */ 2053 STAILQ_INIT(&sbp->fwb.xferlist); 2054 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 2055 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 2056 fc, (void *)sbp, sbp_recv); 2057 2058 fw_bindadd(fc, &sbp->fwb); 2059 2060 sbp->fd.post_busreset = sbp_post_busreset; 2061 sbp->fd.post_explore = sbp_post_explore; 2062 2063 if (fc->status != -1) { 2064 s = splfw(); 2065 sbp_post_busreset((void *)sbp); 2066 sbp_post_explore((void *)sbp); 2067 splx(s); 2068 } 2069 SBP_LOCK(sbp); 2070 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2071 SBP_UNLOCK(sbp); 2072 2073 return (0); 2074 fail: 2075 SBP_UNLOCK(sbp); 2076 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2077 return (ENXIO); 2078 } 2079 2080 static int 2081 sbp_logout_all(struct sbp_softc *sbp) 2082 { 2083 struct sbp_target *target; 2084 struct sbp_dev *sdev; 2085 int i, j; 2086 2087 SBP_DEBUG(0) 2088 printf("sbp_logout_all\n"); 2089 END_DEBUG 2090 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 2091 target = &sbp->targets[i]; 2092 if (target->luns == NULL) 2093 continue; 2094 for (j = 0; j < target->num_lun; j++) { 2095 sdev = target->luns[j]; 2096 if (sdev == NULL) 2097 continue; 2098 callout_stop(&sdev->login_callout); 2099 if (sdev->status >= SBP_DEV_TOATTACH && 2100 sdev->status <= SBP_DEV_ATTACHED) 2101 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2102 } 2103 } 2104 2105 return 0; 2106 } 2107 2108 static int 2109 sbp_shutdown(device_t dev) 2110 { 2111 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2112 2113 sbp_logout_all(sbp); 2114 return (0); 2115 } 2116 2117 static void 2118 sbp_free_sdev(struct sbp_dev *sdev) 2119 { 2120 int i; 2121 2122 if (sdev == NULL) 2123 return; 2124 for (i = 0; i < SBP_QUEUE_LEN; i++) 2125 bus_dmamap_destroy(sdev->target->sbp->dmat, 2126 sdev->ocb[i].dmamap); 2127 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 2128 free(sdev, M_SBP); 2129 sdev = NULL; 2130 } 2131 2132 static void 2133 sbp_free_target(struct sbp_target *target) 2134 { 2135 struct sbp_softc *sbp; 2136 struct fw_xfer *xfer, *next; 2137 int i; 2138 2139 if (target->luns == NULL) 2140 return; 2141 callout_stop(&target->mgm_ocb_timeout); 2142 sbp = target->sbp; 2143 for (i = 0; i < target->num_lun; i++) 2144 sbp_free_sdev(target->luns[i]); 2145 2146 for (xfer = STAILQ_FIRST(&target->xferlist); 2147 xfer != NULL; xfer = next) { 2148 next = STAILQ_NEXT(xfer, link); 2149 fw_xfer_free_buf(xfer); 2150 } 2151 STAILQ_INIT(&target->xferlist); 2152 free(target->luns, M_SBP); 2153 target->num_lun = 0; 2154 target->luns = NULL; 2155 target->fwdev = NULL; 2156 } 2157 2158 static int 2159 sbp_detach(device_t dev) 2160 { 2161 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2162 struct firewire_comm *fc = sbp->fd.fc; 2163 int i; 2164 2165 SBP_DEBUG(0) 2166 printf("sbp_detach\n"); 2167 END_DEBUG 2168 2169 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2170 sbp_cam_detach_target(&sbp->targets[i]); 2171 2172 SBP_LOCK(sbp); 2173 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2174 xpt_free_path(sbp->path); 2175 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2176 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2177 SBP_UNLOCK(sbp); 2178 2179 sbp_logout_all(sbp); 2180 2181 /* XXX wait for logout completion */ 2182 pause("sbpdtc", hz/2); 2183 2184 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2185 sbp_free_target(&sbp->targets[i]); 2186 2187 fw_bindremove(fc, &sbp->fwb); 2188 fw_xferlist_remove(&sbp->fwb.xferlist); 2189 2190 bus_dma_tag_destroy(sbp->dmat); 2191 mtx_destroy(&sbp->mtx); 2192 2193 return (0); 2194 } 2195 2196 static void 2197 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2198 { 2199 if (sdev == NULL) 2200 return; 2201 if (sdev->status == SBP_DEV_DEAD) 2202 return; 2203 if (sdev->status == SBP_DEV_RESET) 2204 return; 2205 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2206 if (sdev->path) { 2207 SBP_LOCK(sdev->target->sbp); 2208 xpt_release_devq(sdev->path, 2209 sdev->freeze, TRUE); 2210 sdev->freeze = 0; 2211 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2212 xpt_free_path(sdev->path); 2213 sdev->path = NULL; 2214 SBP_UNLOCK(sdev->target->sbp); 2215 } 2216 } 2217 2218 static void 2219 sbp_cam_detach_target(struct sbp_target *target) 2220 { 2221 int i; 2222 2223 if (target->luns != NULL) { 2224 SBP_DEBUG(0) 2225 printf("sbp_detach_target %d\n", target->target_id); 2226 END_DEBUG 2227 callout_stop(&target->scan_callout); 2228 for (i = 0; i < target->num_lun; i++) 2229 sbp_cam_detach_sdev(target->luns[i]); 2230 } 2231 } 2232 2233 static void 2234 sbp_target_reset(struct sbp_dev *sdev, int method) 2235 { 2236 int i; 2237 struct sbp_target *target = sdev->target; 2238 struct sbp_dev *tsdev; 2239 2240 for (i = 0; i < target->num_lun; i++) { 2241 tsdev = target->luns[i]; 2242 if (tsdev == NULL) 2243 continue; 2244 if (tsdev->status == SBP_DEV_DEAD) 2245 continue; 2246 if (tsdev->status == SBP_DEV_RESET) 2247 continue; 2248 SBP_LOCK(target->sbp); 2249 xpt_freeze_devq(tsdev->path, 1); 2250 tsdev->freeze ++; 2251 SBP_UNLOCK(target->sbp); 2252 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2253 if (method == 2) 2254 tsdev->status = SBP_DEV_LOGIN; 2255 } 2256 switch(method) { 2257 case 1: 2258 printf("target reset\n"); 2259 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2260 break; 2261 case 2: 2262 printf("reset start\n"); 2263 sbp_reset_start(sdev); 2264 break; 2265 } 2266 2267 } 2268 2269 static void 2270 sbp_mgm_timeout(void *arg) 2271 { 2272 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2273 struct sbp_dev *sdev = ocb->sdev; 2274 struct sbp_target *target = sdev->target; 2275 2276 device_printf(sdev->target->sbp->fd.dev, 2277 "%s:%s request timeout(mgm orb:0x%08x)\n", 2278 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2279 target->mgm_ocb_cur = NULL; 2280 sbp_free_ocb(sdev, ocb); 2281 #if 0 2282 /* XXX */ 2283 printf("run next request\n"); 2284 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2285 #endif 2286 device_printf(sdev->target->sbp->fd.dev, 2287 "%s:%s reset start\n", 2288 __func__, sdev->bustgtlun); 2289 sbp_reset_start(sdev); 2290 } 2291 2292 static void 2293 sbp_timeout(void *arg) 2294 { 2295 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2296 struct sbp_dev *sdev = ocb->sdev; 2297 2298 device_printf(sdev->target->sbp->fd.dev, 2299 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2300 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2301 2302 sdev->timeout ++; 2303 switch(sdev->timeout) { 2304 case 1: 2305 printf("agent reset\n"); 2306 SBP_LOCK(sdev->target->sbp); 2307 xpt_freeze_devq(sdev->path, 1); 2308 sdev->freeze ++; 2309 SBP_UNLOCK(sdev->target->sbp); 2310 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2311 sbp_agent_reset(sdev); 2312 break; 2313 case 2: 2314 case 3: 2315 sbp_target_reset(sdev, sdev->timeout - 1); 2316 break; 2317 #if 0 2318 default: 2319 /* XXX give up */ 2320 sbp_cam_detach_target(target); 2321 if (target->luns != NULL) 2322 free(target->luns, M_SBP); 2323 target->num_lun = 0; 2324 target->luns = NULL; 2325 target->fwdev = NULL; 2326 #endif 2327 } 2328 } 2329 2330 static void 2331 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2332 { 2333 2334 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2335 struct sbp_target *target = NULL; 2336 struct sbp_dev *sdev = NULL; 2337 2338 /* target:lun -> sdev mapping */ 2339 if (sbp != NULL 2340 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2341 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2342 target = &sbp->targets[ccb->ccb_h.target_id]; 2343 if (target->fwdev != NULL 2344 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2345 && ccb->ccb_h.target_lun < target->num_lun) { 2346 sdev = target->luns[ccb->ccb_h.target_lun]; 2347 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2348 sdev->status != SBP_DEV_PROBE) 2349 sdev = NULL; 2350 } 2351 } 2352 2353 SBP_DEBUG(1) 2354 if (sdev == NULL) 2355 printf("invalid target %d lun %d\n", 2356 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2357 END_DEBUG 2358 2359 switch (ccb->ccb_h.func_code) { 2360 case XPT_SCSI_IO: 2361 case XPT_RESET_DEV: 2362 case XPT_GET_TRAN_SETTINGS: 2363 case XPT_SET_TRAN_SETTINGS: 2364 case XPT_CALC_GEOMETRY: 2365 if (sdev == NULL) { 2366 SBP_DEBUG(1) 2367 printf("%s:%d:%d:func_code 0x%04x: " 2368 "Invalid target (target needed)\n", 2369 device_get_nameunit(sbp->fd.dev), 2370 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2371 ccb->ccb_h.func_code); 2372 END_DEBUG 2373 2374 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2375 xpt_done(ccb); 2376 return; 2377 } 2378 break; 2379 case XPT_PATH_INQ: 2380 case XPT_NOOP: 2381 /* The opcodes sometimes aimed at a target (sc is valid), 2382 * sometimes aimed at the SIM (sc is invalid and target is 2383 * CAM_TARGET_WILDCARD) 2384 */ 2385 if (sbp == NULL && 2386 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2387 SBP_DEBUG(0) 2388 printf("%s:%d:%d func_code 0x%04x: " 2389 "Invalid target (no wildcard)\n", 2390 device_get_nameunit(sbp->fd.dev), 2391 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2392 ccb->ccb_h.func_code); 2393 END_DEBUG 2394 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2395 xpt_done(ccb); 2396 return; 2397 } 2398 break; 2399 default: 2400 /* XXX Hm, we should check the input parameters */ 2401 break; 2402 } 2403 2404 switch (ccb->ccb_h.func_code) { 2405 case XPT_SCSI_IO: 2406 { 2407 struct ccb_scsiio *csio; 2408 struct sbp_ocb *ocb; 2409 int speed; 2410 void *cdb; 2411 2412 csio = &ccb->csio; 2413 mtx_assert(sim->mtx, MA_OWNED); 2414 2415 SBP_DEBUG(2) 2416 printf("%s:%d:%d XPT_SCSI_IO: " 2417 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2418 ", flags: 0x%02x, " 2419 "%db cmd/%db data/%db sense\n", 2420 device_get_nameunit(sbp->fd.dev), 2421 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2422 csio->cdb_io.cdb_bytes[0], 2423 csio->cdb_io.cdb_bytes[1], 2424 csio->cdb_io.cdb_bytes[2], 2425 csio->cdb_io.cdb_bytes[3], 2426 csio->cdb_io.cdb_bytes[4], 2427 csio->cdb_io.cdb_bytes[5], 2428 csio->cdb_io.cdb_bytes[6], 2429 csio->cdb_io.cdb_bytes[7], 2430 csio->cdb_io.cdb_bytes[8], 2431 csio->cdb_io.cdb_bytes[9], 2432 ccb->ccb_h.flags & CAM_DIR_MASK, 2433 csio->cdb_len, csio->dxfer_len, 2434 csio->sense_len); 2435 END_DEBUG 2436 if(sdev == NULL){ 2437 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2438 xpt_done(ccb); 2439 return; 2440 } 2441 #if 0 2442 /* if we are in probe stage, pass only probe commands */ 2443 if (sdev->status == SBP_DEV_PROBE) { 2444 char *name; 2445 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2446 printf("probe stage, periph name: %s\n", name); 2447 if (strcmp(name, "probe") != 0) { 2448 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2449 xpt_done(ccb); 2450 return; 2451 } 2452 } 2453 #endif 2454 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2455 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2456 if (sdev->freeze == 0) { 2457 SBP_LOCK(sdev->target->sbp); 2458 xpt_freeze_devq(sdev->path, 1); 2459 sdev->freeze ++; 2460 SBP_UNLOCK(sdev->target->sbp); 2461 } 2462 xpt_done(ccb); 2463 return; 2464 } 2465 2466 ocb->flags = OCB_ACT_CMD; 2467 ocb->sdev = sdev; 2468 ocb->ccb = ccb; 2469 ccb->ccb_h.ccb_sdev_ptr = sdev; 2470 ocb->orb[0] = htonl(1 << 31); 2471 ocb->orb[1] = 0; 2472 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2473 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2474 speed = min(target->fwdev->speed, max_speed); 2475 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2476 | ORB_CMD_MAXP(speed + 7)); 2477 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2478 ocb->orb[4] |= htonl(ORB_CMD_IN); 2479 } 2480 2481 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2482 printf("sbp: CAM_SCATTER_VALID\n"); 2483 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2484 printf("sbp: CAM_DATA_PHYS\n"); 2485 2486 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2487 cdb = (void *)csio->cdb_io.cdb_ptr; 2488 else 2489 cdb = (void *)&csio->cdb_io.cdb_bytes; 2490 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2491 /* 2492 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2493 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2494 */ 2495 if (ccb->csio.dxfer_len > 0) { 2496 int s, error; 2497 2498 s = splsoftvm(); 2499 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2500 /*dma map*/ocb->dmamap, 2501 ccb->csio.data_ptr, 2502 ccb->csio.dxfer_len, 2503 sbp_execute_ocb, 2504 ocb, 2505 /*flags*/0); 2506 splx(s); 2507 if (error) 2508 printf("sbp: bus_dmamap_load error %d\n", error); 2509 } else 2510 sbp_execute_ocb(ocb, NULL, 0, 0); 2511 break; 2512 } 2513 case XPT_CALC_GEOMETRY: 2514 { 2515 struct ccb_calc_geometry *ccg; 2516 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2517 uint32_t size_mb; 2518 uint32_t secs_per_cylinder; 2519 int extended = 1; 2520 #endif 2521 2522 ccg = &ccb->ccg; 2523 if (ccg->block_size == 0) { 2524 printf("sbp_action1: block_size is 0.\n"); 2525 ccb->ccb_h.status = CAM_REQ_INVALID; 2526 xpt_done(ccb); 2527 break; 2528 } 2529 SBP_DEBUG(1) 2530 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2531 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2532 "Volume size = %d\n", 2533 #else 2534 "Volume size = %jd\n", 2535 #endif 2536 device_get_nameunit(sbp->fd.dev), 2537 cam_sim_path(sbp->sim), 2538 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2539 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2540 (uintmax_t) 2541 #endif 2542 ccg->volume_size); 2543 END_DEBUG 2544 2545 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2546 size_mb = ccg->volume_size 2547 / ((1024L * 1024L) / ccg->block_size); 2548 2549 if (size_mb > 1024 && extended) { 2550 ccg->heads = 255; 2551 ccg->secs_per_track = 63; 2552 } else { 2553 ccg->heads = 64; 2554 ccg->secs_per_track = 32; 2555 } 2556 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2557 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2558 ccb->ccb_h.status = CAM_REQ_CMP; 2559 #else 2560 cam_calc_geometry(ccg, /*extended*/1); 2561 #endif 2562 xpt_done(ccb); 2563 break; 2564 } 2565 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2566 { 2567 2568 SBP_DEBUG(1) 2569 printf("%s:%d:XPT_RESET_BUS: \n", 2570 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2571 END_DEBUG 2572 2573 ccb->ccb_h.status = CAM_REQ_INVALID; 2574 xpt_done(ccb); 2575 break; 2576 } 2577 case XPT_PATH_INQ: /* Path routing inquiry */ 2578 { 2579 struct ccb_pathinq *cpi = &ccb->cpi; 2580 2581 SBP_DEBUG(1) 2582 printf("%s:%d:%d XPT_PATH_INQ:.\n", 2583 device_get_nameunit(sbp->fd.dev), 2584 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2585 END_DEBUG 2586 cpi->version_num = 1; /* XXX??? */ 2587 cpi->hba_inquiry = PI_TAG_ABLE; 2588 cpi->target_sprt = 0; 2589 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2590 cpi->hba_eng_cnt = 0; 2591 cpi->max_target = SBP_NUM_TARGETS - 1; 2592 cpi->max_lun = SBP_NUM_LUNS - 1; 2593 cpi->initiator_id = SBP_INITIATOR; 2594 cpi->bus_id = sim->bus_id; 2595 cpi->base_transfer_speed = 400 * 1000 / 8; 2596 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2597 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2598 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2599 cpi->unit_number = sim->unit_number; 2600 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2601 cpi->transport_version = 2; 2602 cpi->protocol = PROTO_SCSI; 2603 cpi->protocol_version = SCSI_REV_2; 2604 2605 cpi->ccb_h.status = CAM_REQ_CMP; 2606 xpt_done(ccb); 2607 break; 2608 } 2609 case XPT_GET_TRAN_SETTINGS: 2610 { 2611 struct ccb_trans_settings *cts = &ccb->cts; 2612 struct ccb_trans_settings_scsi *scsi = 2613 &cts->proto_specific.scsi; 2614 struct ccb_trans_settings_spi *spi = 2615 &cts->xport_specific.spi; 2616 2617 cts->protocol = PROTO_SCSI; 2618 cts->protocol_version = SCSI_REV_2; 2619 cts->transport = XPORT_SPI; /* should have a FireWire */ 2620 cts->transport_version = 2; 2621 spi->valid = CTS_SPI_VALID_DISC; 2622 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2623 scsi->valid = CTS_SCSI_VALID_TQ; 2624 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2625 SBP_DEBUG(1) 2626 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2627 device_get_nameunit(sbp->fd.dev), 2628 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2629 END_DEBUG 2630 cts->ccb_h.status = CAM_REQ_CMP; 2631 xpt_done(ccb); 2632 break; 2633 } 2634 case XPT_ABORT: 2635 ccb->ccb_h.status = CAM_UA_ABORT; 2636 xpt_done(ccb); 2637 break; 2638 case XPT_SET_TRAN_SETTINGS: 2639 /* XXX */ 2640 default: 2641 ccb->ccb_h.status = CAM_REQ_INVALID; 2642 xpt_done(ccb); 2643 break; 2644 } 2645 return; 2646 } 2647 2648 static void 2649 sbp_action(struct cam_sim *sim, union ccb *ccb) 2650 { 2651 int s; 2652 2653 s = splfw(); 2654 sbp_action1(sim, ccb); 2655 splx(s); 2656 } 2657 2658 static void 2659 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2660 { 2661 int i; 2662 struct sbp_ocb *ocb; 2663 struct sbp_ocb *prev; 2664 bus_dma_segment_t *s; 2665 2666 if (error) 2667 printf("sbp_execute_ocb: error=%d\n", error); 2668 2669 ocb = (struct sbp_ocb *)arg; 2670 2671 SBP_DEBUG(2) 2672 printf("sbp_execute_ocb: seg %d", seg); 2673 for (i = 0; i < seg; i++) 2674 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2675 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); 2676 #else 2677 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2678 (uintmax_t)segments[i].ds_len); 2679 #endif 2680 printf("\n"); 2681 END_DEBUG 2682 2683 if (seg == 1) { 2684 /* direct pointer */ 2685 s = &segments[0]; 2686 if (s->ds_len > SBP_SEG_MAX) 2687 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2688 ocb->orb[3] = htonl(s->ds_addr); 2689 ocb->orb[4] |= htonl(s->ds_len); 2690 } else if(seg > 1) { 2691 /* page table */ 2692 for (i = 0; i < seg; i++) { 2693 s = &segments[i]; 2694 SBP_DEBUG(0) 2695 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2696 if (s->ds_len < 16) 2697 printf("sbp_execute_ocb: warning, " 2698 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2699 "segment length(%d) is less than 16." 2700 #else 2701 "segment length(%zd) is less than 16." 2702 #endif 2703 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg); 2704 END_DEBUG 2705 if (s->ds_len > SBP_SEG_MAX) 2706 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2707 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2708 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2709 } 2710 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2711 } 2712 2713 if (seg > 0) 2714 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2715 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2716 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2717 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2718 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2719 if (use_doorbell) { 2720 if (prev == NULL) { 2721 if (ocb->sdev->last_ocb != NULL) 2722 sbp_doorbell(ocb->sdev); 2723 else 2724 sbp_orb_pointer(ocb->sdev, ocb); 2725 } 2726 } else { 2727 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2728 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2729 sbp_orb_pointer(ocb->sdev, ocb); 2730 } 2731 } 2732 } 2733 2734 static void 2735 sbp_poll(struct cam_sim *sim) 2736 { 2737 struct sbp_softc *sbp; 2738 struct firewire_comm *fc; 2739 2740 sbp = (struct sbp_softc *)sim->softc; 2741 fc = sbp->fd.fc; 2742 2743 fc->poll(fc, 0, -1); 2744 2745 return; 2746 } 2747 2748 static struct sbp_ocb * 2749 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2750 { 2751 struct sbp_ocb *ocb; 2752 struct sbp_ocb *next; 2753 int s = splfw(), order = 0; 2754 int flags; 2755 2756 SBP_DEBUG(1) 2757 device_printf(sdev->target->sbp->fd.dev, 2758 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2759 "%s:%s 0x%08lx src %d\n", 2760 #else 2761 "%s:%s 0x%08x src %d\n", 2762 #endif 2763 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2764 END_DEBUG 2765 SBP_LOCK(sdev->target->sbp); 2766 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2767 next = STAILQ_NEXT(ocb, ocb); 2768 flags = ocb->flags; 2769 if (OCB_MATCH(ocb, sbp_status)) { 2770 /* found */ 2771 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2772 if (ocb->ccb != NULL) 2773 untimeout(sbp_timeout, (caddr_t)ocb, 2774 ocb->ccb->ccb_h.timeout_ch); 2775 if (ntohl(ocb->orb[4]) & 0xffff) { 2776 bus_dmamap_sync(sdev->target->sbp->dmat, 2777 ocb->dmamap, 2778 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2779 BUS_DMASYNC_POSTREAD : 2780 BUS_DMASYNC_POSTWRITE); 2781 bus_dmamap_unload(sdev->target->sbp->dmat, 2782 ocb->dmamap); 2783 } 2784 if (!use_doorbell) { 2785 if (sbp_status->src == SRC_NO_NEXT) { 2786 if (next != NULL) 2787 sbp_orb_pointer(sdev, next); 2788 else if (order > 0) { 2789 /* 2790 * Unordered execution 2791 * We need to send pointer for 2792 * next ORB 2793 */ 2794 sdev->flags |= ORB_LINK_DEAD; 2795 } 2796 } 2797 } else { 2798 /* 2799 * XXX this is not correct for unordered 2800 * execution. 2801 */ 2802 if (sdev->last_ocb != NULL) { 2803 SBP_UNLOCK(sdev->target->sbp); 2804 sbp_free_ocb(sdev, sdev->last_ocb); 2805 SBP_LOCK(sdev->target->sbp); 2806 } 2807 sdev->last_ocb = ocb; 2808 if (next != NULL && 2809 sbp_status->src == SRC_NO_NEXT) 2810 sbp_doorbell(sdev); 2811 } 2812 break; 2813 } else 2814 order ++; 2815 } 2816 SBP_UNLOCK(sdev->target->sbp); 2817 splx(s); 2818 SBP_DEBUG(0) 2819 if (ocb && order > 0) { 2820 device_printf(sdev->target->sbp->fd.dev, 2821 "%s:%s unordered execution order:%d\n", 2822 __func__, sdev->bustgtlun, order); 2823 } 2824 END_DEBUG 2825 return (ocb); 2826 } 2827 2828 static struct sbp_ocb * 2829 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2830 { 2831 int s = splfw(); 2832 struct sbp_ocb *prev, *prev2; 2833 2834 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 2835 SBP_DEBUG(1) 2836 device_printf(sdev->target->sbp->fd.dev, 2837 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2838 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr); 2839 #else 2840 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2841 #endif 2842 END_DEBUG 2843 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2844 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2845 2846 if (ocb->ccb != NULL) 2847 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb, 2848 (ocb->ccb->ccb_h.timeout * hz) / 1000); 2849 2850 if (use_doorbell && prev == NULL) 2851 prev2 = sdev->last_ocb; 2852 2853 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2854 SBP_DEBUG(1) 2855 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2856 printf("linking chain 0x%x -> 0x%x\n", 2857 prev2->bus_addr, ocb->bus_addr); 2858 #else 2859 printf("linking chain 0x%jx -> 0x%jx\n", 2860 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2861 #endif 2862 END_DEBUG 2863 /* 2864 * Suppress compiler optimization so that orb[1] must be written first. 2865 * XXX We may need an explicit memory barrier for other architectures 2866 * other than i386/amd64. 2867 */ 2868 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2869 *(volatile uint32_t *)&prev2->orb[0] = 0; 2870 } 2871 splx(s); 2872 2873 return prev; 2874 } 2875 2876 static struct sbp_ocb * 2877 sbp_get_ocb(struct sbp_dev *sdev) 2878 { 2879 struct sbp_ocb *ocb; 2880 int s = splfw(); 2881 2882 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 2883 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2884 if (ocb == NULL) { 2885 sdev->flags |= ORB_SHORTAGE; 2886 printf("ocb shortage!!!\n"); 2887 splx(s); 2888 return NULL; 2889 } 2890 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2891 splx(s); 2892 ocb->ccb = NULL; 2893 return (ocb); 2894 } 2895 2896 static void 2897 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2898 { 2899 ocb->flags = 0; 2900 ocb->ccb = NULL; 2901 2902 SBP_LOCK(sdev->target->sbp); 2903 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2904 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2905 int count; 2906 2907 sdev->flags &= ~ORB_SHORTAGE; 2908 count = sdev->freeze; 2909 sdev->freeze = 0; 2910 xpt_release_devq(sdev->path, count, TRUE); 2911 } 2912 SBP_UNLOCK(sdev->target->sbp); 2913 } 2914 2915 static void 2916 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2917 { 2918 struct sbp_dev *sdev; 2919 2920 sdev = ocb->sdev; 2921 SBP_DEBUG(0) 2922 device_printf(sdev->target->sbp->fd.dev, 2923 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2924 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr); 2925 #else 2926 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2927 #endif 2928 END_DEBUG 2929 SBP_DEBUG(1) 2930 if (ocb->ccb != NULL) 2931 sbp_print_scsi_cmd(ocb); 2932 END_DEBUG 2933 if (ntohl(ocb->orb[4]) & 0xffff) { 2934 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2935 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2936 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2937 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2938 } 2939 if (ocb->ccb != NULL) { 2940 untimeout(sbp_timeout, (caddr_t)ocb, 2941 ocb->ccb->ccb_h.timeout_ch); 2942 ocb->ccb->ccb_h.status = status; 2943 SBP_LOCK(sdev->target->sbp); 2944 xpt_done(ocb->ccb); 2945 SBP_UNLOCK(sdev->target->sbp); 2946 } 2947 sbp_free_ocb(sdev, ocb); 2948 } 2949 2950 static void 2951 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2952 { 2953 int s; 2954 struct sbp_ocb *ocb, *next; 2955 STAILQ_HEAD(, sbp_ocb) temp; 2956 2957 s = splfw(); 2958 2959 STAILQ_INIT(&temp); 2960 SBP_LOCK(sdev->target->sbp); 2961 STAILQ_CONCAT(&temp, &sdev->ocbs); 2962 STAILQ_INIT(&sdev->ocbs); 2963 SBP_UNLOCK(sdev->target->sbp); 2964 2965 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2966 next = STAILQ_NEXT(ocb, ocb); 2967 sbp_abort_ocb(ocb, status); 2968 } 2969 if (sdev->last_ocb != NULL) { 2970 sbp_free_ocb(sdev, sdev->last_ocb); 2971 sdev->last_ocb = NULL; 2972 } 2973 2974 splx(s); 2975 } 2976 2977 static devclass_t sbp_devclass; 2978 2979 static device_method_t sbp_methods[] = { 2980 /* device interface */ 2981 DEVMETHOD(device_identify, sbp_identify), 2982 DEVMETHOD(device_probe, sbp_probe), 2983 DEVMETHOD(device_attach, sbp_attach), 2984 DEVMETHOD(device_detach, sbp_detach), 2985 DEVMETHOD(device_shutdown, sbp_shutdown), 2986 2987 { 0, 0 } 2988 }; 2989 2990 static driver_t sbp_driver = { 2991 "sbp", 2992 sbp_methods, 2993 sizeof(struct sbp_softc), 2994 }; 2995 #ifdef __DragonFly__ 2996 DECLARE_DUMMY_MODULE(sbp); 2997 #endif 2998 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2999 MODULE_VERSION(sbp, 1); 3000 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 3001 MODULE_DEPEND(sbp, cam, 1, 1, 1); 3002