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FreeBSD/Linux Kernel Cross Reference
sys/dev/firewire/sbp.c
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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: releng/8.4/sys/dev/firewire/sbp.c 219990 2011-03-25 12:46:08Z marius $ 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 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); 136 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 137 "SBP debug flag"); 138 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 139 "SBP perform login automatically"); 140 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 141 "SBP transfer max speed"); 142 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 143 &ex_login, 0, "SBP enable exclusive login"); 144 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 145 &login_delay, 0, "SBP login delay in msec"); 146 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 147 &scan_delay, 0, "SBP scan delay in msec"); 148 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW, 149 &use_doorbell, 0, "SBP use doorbell request"); 150 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 151 "SBP tagged queuing support"); 152 153 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 154 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 155 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 156 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 157 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 158 TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell); 159 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 160 161 #define NEED_RESPONSE 0 162 163 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 164 #ifdef __sparc64__ /* iommu */ 165 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) 166 #else 167 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 168 #endif 169 struct sbp_ocb { 170 STAILQ_ENTRY(sbp_ocb) ocb; 171 union ccb *ccb; 172 bus_addr_t bus_addr; 173 uint32_t orb[8]; 174 #define IND_PTR_OFFSET (8*sizeof(uint32_t)) 175 struct ind_ptr ind_ptr[SBP_IND_MAX]; 176 struct sbp_dev *sdev; 177 int flags; /* XXX should be removed */ 178 bus_dmamap_t dmamap; 179 }; 180 181 #define OCB_ACT_MGM 0 182 #define OCB_ACT_CMD 1 183 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 184 185 struct sbp_dev{ 186 #define SBP_DEV_RESET 0 /* accept login */ 187 #define SBP_DEV_LOGIN 1 /* to login */ 188 #if 0 189 #define SBP_DEV_RECONN 2 /* to reconnect */ 190 #endif 191 #define SBP_DEV_TOATTACH 3 /* to attach */ 192 #define SBP_DEV_PROBE 4 /* scan lun */ 193 #define SBP_DEV_ATTACHED 5 /* in operation */ 194 #define SBP_DEV_DEAD 6 /* unavailable unit */ 195 #define SBP_DEV_RETRY 7 /* unavailable unit */ 196 uint8_t status:4, 197 timeout:4; 198 uint8_t type; 199 uint16_t lun_id; 200 uint16_t freeze; 201 #define ORB_LINK_DEAD (1 << 0) 202 #define VALID_LUN (1 << 1) 203 #define ORB_POINTER_ACTIVE (1 << 2) 204 #define ORB_POINTER_NEED (1 << 3) 205 #define ORB_DOORBELL_ACTIVE (1 << 4) 206 #define ORB_DOORBELL_NEED (1 << 5) 207 #define ORB_SHORTAGE (1 << 6) 208 uint16_t flags; 209 struct cam_path *path; 210 struct sbp_target *target; 211 struct fwdma_alloc dma; 212 struct sbp_login_res *login; 213 struct callout login_callout; 214 struct sbp_ocb *ocb; 215 STAILQ_HEAD(, sbp_ocb) ocbs; 216 STAILQ_HEAD(, sbp_ocb) free_ocbs; 217 struct sbp_ocb *last_ocb; 218 char vendor[32]; 219 char product[32]; 220 char revision[10]; 221 char bustgtlun[32]; 222 }; 223 224 struct sbp_target { 225 int target_id; 226 int num_lun; 227 struct sbp_dev **luns; 228 struct sbp_softc *sbp; 229 struct fw_device *fwdev; 230 uint32_t mgm_hi, mgm_lo; 231 struct sbp_ocb *mgm_ocb_cur; 232 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 233 struct callout mgm_ocb_timeout; 234 struct callout scan_callout; 235 STAILQ_HEAD(, fw_xfer) xferlist; 236 int n_xfer; 237 }; 238 239 struct sbp_softc { 240 struct firewire_dev_comm fd; 241 struct cam_sim *sim; 242 struct cam_path *path; 243 struct sbp_target targets[SBP_NUM_TARGETS]; 244 struct fw_bind fwb; 245 bus_dma_tag_t dmat; 246 struct timeval last_busreset; 247 #define SIMQ_FREEZED 1 248 int flags; 249 struct mtx mtx; 250 }; 251 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) 252 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) 253 254 static void sbp_post_explore (void *); 255 static void sbp_recv (struct fw_xfer *); 256 static void sbp_mgm_callback (struct fw_xfer *); 257 #if 0 258 static void sbp_cmd_callback (struct fw_xfer *); 259 #endif 260 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 261 static void sbp_doorbell(struct sbp_dev *); 262 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 263 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 264 static void sbp_abort_ocb (struct sbp_ocb *, int); 265 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 266 static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int); 267 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 268 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 269 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 270 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 271 static void sbp_cam_detach_sdev(struct sbp_dev *); 272 static void sbp_free_sdev(struct sbp_dev *); 273 static void sbp_cam_detach_target (struct sbp_target *); 274 static void sbp_free_target (struct sbp_target *); 275 static void sbp_mgm_timeout (void *arg); 276 static void sbp_timeout (void *arg); 277 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 278 279 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 280 281 /* cam related functions */ 282 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 283 static void sbp_poll(struct cam_sim *sim); 284 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 285 static void sbp_cam_scan_target(void *arg); 286 287 static char *orb_status0[] = { 288 /* 0 */ "No additional information to report", 289 /* 1 */ "Request type not supported", 290 /* 2 */ "Speed not supported", 291 /* 3 */ "Page size not supported", 292 /* 4 */ "Access denied", 293 /* 5 */ "Logical unit not supported", 294 /* 6 */ "Maximum payload too small", 295 /* 7 */ "Reserved for future standardization", 296 /* 8 */ "Resources unavailable", 297 /* 9 */ "Function rejected", 298 /* A */ "Login ID not recognized", 299 /* B */ "Dummy ORB completed", 300 /* C */ "Request aborted", 301 /* FF */ "Unspecified error" 302 #define MAX_ORB_STATUS0 0xd 303 }; 304 305 static char *orb_status1_object[] = { 306 /* 0 */ "Operation request block (ORB)", 307 /* 1 */ "Data buffer", 308 /* 2 */ "Page table", 309 /* 3 */ "Unable to specify" 310 }; 311 312 static char *orb_status1_serial_bus_error[] = { 313 /* 0 */ "Missing acknowledge", 314 /* 1 */ "Reserved; not to be used", 315 /* 2 */ "Time-out error", 316 /* 3 */ "Reserved; not to be used", 317 /* 4 */ "Busy retry limit exceeded(X)", 318 /* 5 */ "Busy retry limit exceeded(A)", 319 /* 6 */ "Busy retry limit exceeded(B)", 320 /* 7 */ "Reserved for future standardization", 321 /* 8 */ "Reserved for future standardization", 322 /* 9 */ "Reserved for future standardization", 323 /* A */ "Reserved for future standardization", 324 /* B */ "Tardy retry limit exceeded", 325 /* C */ "Conflict error", 326 /* D */ "Data error", 327 /* E */ "Type error", 328 /* F */ "Address error" 329 }; 330 331 static void 332 sbp_identify(driver_t *driver, device_t parent) 333 { 334 SBP_DEBUG(0) 335 printf("sbp_identify\n"); 336 END_DEBUG 337 338 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent)); 339 } 340 341 /* 342 * sbp_probe() 343 */ 344 static int 345 sbp_probe(device_t dev) 346 { 347 device_t pa; 348 349 SBP_DEBUG(0) 350 printf("sbp_probe\n"); 351 END_DEBUG 352 353 pa = device_get_parent(dev); 354 if(device_get_unit(dev) != device_get_unit(pa)){ 355 return(ENXIO); 356 } 357 358 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 359 360 #if 0 361 if (bootverbose) 362 debug = bootverbose; 363 #endif 364 365 return (0); 366 } 367 368 /* 369 * Display device characteristics on the console 370 */ 371 static void 372 sbp_show_sdev_info(struct sbp_dev *sdev) 373 { 374 struct fw_device *fwdev; 375 376 fwdev = sdev->target->fwdev; 377 device_printf(sdev->target->sbp->fd.dev, 378 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " 379 "speed:%d maxrec:%d\n", 380 __func__, 381 sdev->bustgtlun, 382 (sdev->type & 0x40) >> 6, 383 (sdev->type & 0x1f), 384 fwdev->eui.hi, 385 fwdev->eui.lo, 386 fwdev->dst, 387 fwdev->speed, 388 fwdev->maxrec); 389 390 device_printf(sdev->target->sbp->fd.dev, 391 "%s: %s '%s' '%s' '%s'\n", 392 __func__, 393 sdev->bustgtlun, 394 sdev->vendor, 395 sdev->product, 396 sdev->revision); 397 } 398 399 static struct { 400 int bus; 401 int target; 402 struct fw_eui64 eui; 403 } wired[] = { 404 /* Bus Target EUI64 */ 405 #if 0 406 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 407 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 408 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 409 #endif 410 {-1, -1, {0,0}} 411 }; 412 413 static int 414 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 415 { 416 int bus, i, target=-1; 417 char w[SBP_NUM_TARGETS]; 418 419 bzero(w, sizeof(w)); 420 bus = device_get_unit(sbp->fd.dev); 421 422 /* XXX wired-down configuration should be gotten from 423 tunable or device hint */ 424 for (i = 0; wired[i].bus >= 0; i ++) { 425 if (wired[i].bus == bus) { 426 w[wired[i].target] = 1; 427 if (wired[i].eui.hi == fwdev->eui.hi && 428 wired[i].eui.lo == fwdev->eui.lo) 429 target = wired[i].target; 430 } 431 } 432 if (target >= 0) { 433 if(target < SBP_NUM_TARGETS && 434 sbp->targets[target].fwdev == NULL) 435 return(target); 436 device_printf(sbp->fd.dev, 437 "target %d is not free for %08x:%08x\n", 438 target, fwdev->eui.hi, fwdev->eui.lo); 439 target = -1; 440 } 441 /* non-wired target */ 442 for (i = 0; i < SBP_NUM_TARGETS; i ++) 443 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 444 target = i; 445 break; 446 } 447 448 return target; 449 } 450 451 static void 452 sbp_alloc_lun(struct sbp_target *target) 453 { 454 struct crom_context cc; 455 struct csrreg *reg; 456 struct sbp_dev *sdev, **newluns; 457 struct sbp_softc *sbp; 458 int maxlun, lun, i; 459 460 sbp = target->sbp; 461 crom_init_context(&cc, target->fwdev->csrrom); 462 /* XXX shoud parse appropriate unit directories only */ 463 maxlun = -1; 464 while (cc.depth >= 0) { 465 reg = crom_search_key(&cc, CROM_LUN); 466 if (reg == NULL) 467 break; 468 lun = reg->val & 0xffff; 469 SBP_DEBUG(0) 470 printf("target %d lun %d found\n", target->target_id, lun); 471 END_DEBUG 472 if (maxlun < lun) 473 maxlun = lun; 474 crom_next(&cc); 475 } 476 if (maxlun < 0) 477 printf("%s:%d no LUN found\n", 478 device_get_nameunit(target->sbp->fd.dev), 479 target->target_id); 480 481 maxlun ++; 482 if (maxlun >= SBP_NUM_LUNS) 483 maxlun = SBP_NUM_LUNS; 484 485 /* Invalidiate stale devices */ 486 for (lun = 0; lun < target->num_lun; lun ++) { 487 sdev = target->luns[lun]; 488 if (sdev == NULL) 489 continue; 490 sdev->flags &= ~VALID_LUN; 491 if (lun >= maxlun) { 492 /* lost device */ 493 sbp_cam_detach_sdev(sdev); 494 sbp_free_sdev(sdev); 495 target->luns[lun] = NULL; 496 } 497 } 498 499 /* Reallocate */ 500 if (maxlun != target->num_lun) { 501 newluns = (struct sbp_dev **) realloc(target->luns, 502 sizeof(struct sbp_dev *) * maxlun, 503 M_SBP, M_NOWAIT | M_ZERO); 504 505 if (newluns == NULL) { 506 printf("%s: realloc failed\n", __func__); 507 newluns = target->luns; 508 maxlun = target->num_lun; 509 } 510 511 /* 512 * We must zero the extended region for the case 513 * realloc() doesn't allocate new buffer. 514 */ 515 if (maxlun > target->num_lun) 516 bzero(&newluns[target->num_lun], 517 sizeof(struct sbp_dev *) * 518 (maxlun - target->num_lun)); 519 520 target->luns = newluns; 521 target->num_lun = maxlun; 522 } 523 524 crom_init_context(&cc, target->fwdev->csrrom); 525 while (cc.depth >= 0) { 526 int new = 0; 527 528 reg = crom_search_key(&cc, CROM_LUN); 529 if (reg == NULL) 530 break; 531 lun = reg->val & 0xffff; 532 if (lun >= SBP_NUM_LUNS) { 533 printf("too large lun %d\n", lun); 534 goto next; 535 } 536 537 sdev = target->luns[lun]; 538 if (sdev == NULL) { 539 sdev = malloc(sizeof(struct sbp_dev), 540 M_SBP, M_NOWAIT | M_ZERO); 541 if (sdev == NULL) { 542 printf("%s: malloc failed\n", __func__); 543 goto next; 544 } 545 target->luns[lun] = sdev; 546 sdev->lun_id = lun; 547 sdev->target = target; 548 STAILQ_INIT(&sdev->ocbs); 549 CALLOUT_INIT(&sdev->login_callout); 550 sdev->status = SBP_DEV_RESET; 551 new = 1; 552 snprintf(sdev->bustgtlun, 32, "%s:%d:%d", 553 device_get_nameunit(sdev->target->sbp->fd.dev), 554 sdev->target->target_id, 555 sdev->lun_id); 556 } 557 sdev->flags |= VALID_LUN; 558 sdev->type = (reg->val & 0xff0000) >> 16; 559 560 if (new == 0) 561 goto next; 562 563 fwdma_malloc(sbp->fd.fc, 564 /* alignment */ sizeof(uint32_t), 565 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | 566 BUS_DMA_COHERENT); 567 if (sdev->dma.v_addr == NULL) { 568 printf("%s: dma space allocation failed\n", 569 __func__); 570 free(sdev, M_SBP); 571 target->luns[lun] = NULL; 572 goto next; 573 } 574 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 575 sdev->ocb = (struct sbp_ocb *) 576 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 577 bzero((char *)sdev->ocb, 578 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN); 579 580 STAILQ_INIT(&sdev->free_ocbs); 581 for (i = 0; i < SBP_QUEUE_LEN; i++) { 582 struct sbp_ocb *ocb; 583 ocb = &sdev->ocb[i]; 584 ocb->bus_addr = sdev->dma.bus_addr 585 + SBP_LOGIN_SIZE 586 + sizeof(struct sbp_ocb) * i 587 + offsetof(struct sbp_ocb, orb[0]); 588 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 589 printf("sbp_attach: cannot create dmamap\n"); 590 /* XXX */ 591 goto next; 592 } 593 sbp_free_ocb(sdev, ocb); 594 } 595 next: 596 crom_next(&cc); 597 } 598 599 for (lun = 0; lun < target->num_lun; lun ++) { 600 sdev = target->luns[lun]; 601 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 602 sbp_cam_detach_sdev(sdev); 603 sbp_free_sdev(sdev); 604 target->luns[lun] = NULL; 605 } 606 } 607 } 608 609 static struct sbp_target * 610 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 611 { 612 int i; 613 struct sbp_target *target; 614 struct crom_context cc; 615 struct csrreg *reg; 616 617 SBP_DEBUG(1) 618 printf("sbp_alloc_target\n"); 619 END_DEBUG 620 i = sbp_new_target(sbp, fwdev); 621 if (i < 0) { 622 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 623 return NULL; 624 } 625 /* new target */ 626 target = &sbp->targets[i]; 627 target->sbp = sbp; 628 target->fwdev = fwdev; 629 target->target_id = i; 630 /* XXX we may want to reload mgm port after each bus reset */ 631 /* XXX there might be multiple management agents */ 632 crom_init_context(&cc, target->fwdev->csrrom); 633 reg = crom_search_key(&cc, CROM_MGM); 634 if (reg == NULL || reg->val == 0) { 635 printf("NULL management address\n"); 636 target->fwdev = NULL; 637 return NULL; 638 } 639 target->mgm_hi = 0xffff; 640 target->mgm_lo = 0xf0000000 | (reg->val << 2); 641 target->mgm_ocb_cur = NULL; 642 SBP_DEBUG(1) 643 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 644 END_DEBUG 645 STAILQ_INIT(&target->xferlist); 646 target->n_xfer = 0; 647 STAILQ_INIT(&target->mgm_ocb_queue); 648 CALLOUT_INIT(&target->mgm_ocb_timeout); 649 CALLOUT_INIT(&target->scan_callout); 650 651 target->luns = NULL; 652 target->num_lun = 0; 653 return target; 654 } 655 656 static void 657 sbp_probe_lun(struct sbp_dev *sdev) 658 { 659 struct fw_device *fwdev; 660 struct crom_context c, *cc = &c; 661 struct csrreg *reg; 662 663 bzero(sdev->vendor, sizeof(sdev->vendor)); 664 bzero(sdev->product, sizeof(sdev->product)); 665 666 fwdev = sdev->target->fwdev; 667 crom_init_context(cc, fwdev->csrrom); 668 /* get vendor string */ 669 crom_search_key(cc, CSRKEY_VENDOR); 670 crom_next(cc); 671 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 672 /* skip to the unit directory for SBP-2 */ 673 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 674 if (reg->val == CSRVAL_T10SBP2) 675 break; 676 crom_next(cc); 677 } 678 /* get firmware revision */ 679 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 680 if (reg != NULL) 681 snprintf(sdev->revision, sizeof(sdev->revision), 682 "%06x", reg->val); 683 /* get product string */ 684 crom_search_key(cc, CSRKEY_MODEL); 685 crom_next(cc); 686 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 687 } 688 689 static void 690 sbp_login_callout(void *arg) 691 { 692 struct sbp_dev *sdev = (struct sbp_dev *)arg; 693 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 694 } 695 696 static void 697 sbp_login(struct sbp_dev *sdev) 698 { 699 struct timeval delta; 700 struct timeval t; 701 int ticks = 0; 702 703 microtime(&delta); 704 timevalsub(&delta, &sdev->target->sbp->last_busreset); 705 t.tv_sec = login_delay / 1000; 706 t.tv_usec = (login_delay % 1000) * 1000; 707 timevalsub(&t, &delta); 708 if (t.tv_sec >= 0 && t.tv_usec > 0) 709 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 710 SBP_DEBUG(0) 711 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, 712 (intmax_t)t.tv_sec, t.tv_usec, ticks); 713 END_DEBUG 714 callout_reset(&sdev->login_callout, ticks, 715 sbp_login_callout, (void *)(sdev)); 716 } 717 718 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 719 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 720 721 static void 722 sbp_probe_target(void *arg) 723 { 724 struct sbp_target *target = (struct sbp_target *)arg; 725 struct sbp_softc *sbp = target->sbp; 726 struct sbp_dev *sdev; 727 int i, alive; 728 729 alive = SBP_FWDEV_ALIVE(target->fwdev); 730 SBP_DEBUG(1) 731 device_printf(sbp->fd.dev, "%s %d%salive\n", 732 __func__, target->target_id, 733 (!alive) ? " not " : ""); 734 END_DEBUG 735 736 sbp = target->sbp; 737 sbp_alloc_lun(target); 738 739 /* XXX untimeout mgm_ocb and dequeue */ 740 for (i=0; i < target->num_lun; i++) { 741 sdev = target->luns[i]; 742 if (sdev == NULL) 743 continue; 744 if (alive && (sdev->status != SBP_DEV_DEAD)) { 745 if (sdev->path != NULL) { 746 SBP_LOCK(sbp); 747 xpt_freeze_devq(sdev->path, 1); 748 sdev->freeze ++; 749 SBP_UNLOCK(sbp); 750 } 751 sbp_probe_lun(sdev); 752 sbp_show_sdev_info(sdev); 753 754 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 755 switch (sdev->status) { 756 case SBP_DEV_RESET: 757 /* new or revived target */ 758 if (auto_login) 759 sbp_login(sdev); 760 break; 761 case SBP_DEV_TOATTACH: 762 case SBP_DEV_PROBE: 763 case SBP_DEV_ATTACHED: 764 case SBP_DEV_RETRY: 765 default: 766 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 767 break; 768 } 769 } else { 770 switch (sdev->status) { 771 case SBP_DEV_ATTACHED: 772 SBP_DEBUG(0) 773 /* the device has gone */ 774 device_printf(sbp->fd.dev, "%s: lost target\n", 775 __func__); 776 END_DEBUG 777 if (sdev->path) { 778 SBP_LOCK(sbp); 779 xpt_freeze_devq(sdev->path, 1); 780 sdev->freeze ++; 781 SBP_UNLOCK(sbp); 782 } 783 sdev->status = SBP_DEV_RETRY; 784 sbp_cam_detach_sdev(sdev); 785 sbp_free_sdev(sdev); 786 target->luns[i] = NULL; 787 break; 788 case SBP_DEV_PROBE: 789 case SBP_DEV_TOATTACH: 790 sdev->status = SBP_DEV_RESET; 791 break; 792 case SBP_DEV_RETRY: 793 case SBP_DEV_RESET: 794 case SBP_DEV_DEAD: 795 break; 796 } 797 } 798 } 799 } 800 801 static void 802 sbp_post_busreset(void *arg) 803 { 804 struct sbp_softc *sbp; 805 806 sbp = (struct sbp_softc *)arg; 807 SBP_DEBUG(0) 808 printf("sbp_post_busreset\n"); 809 END_DEBUG 810 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 811 SBP_LOCK(sbp); 812 xpt_freeze_simq(sbp->sim, /*count*/1); 813 sbp->sim->flags |= SIMQ_FREEZED; 814 SBP_UNLOCK(sbp); 815 } 816 microtime(&sbp->last_busreset); 817 } 818 819 static void 820 sbp_post_explore(void *arg) 821 { 822 struct sbp_softc *sbp = (struct sbp_softc *)arg; 823 struct sbp_target *target; 824 struct fw_device *fwdev; 825 int i, alive; 826 827 SBP_DEBUG(0) 828 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 829 END_DEBUG 830 /* We need physical access */ 831 if (!firewire_phydma_enable) 832 return; 833 834 if (sbp_cold > 0) 835 sbp_cold --; 836 837 #if 0 838 /* 839 * XXX don't let CAM the bus rest. 840 * CAM tries to do something with freezed (DEV_RETRY) devices. 841 */ 842 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 843 #endif 844 845 /* Garbage Collection */ 846 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 847 target = &sbp->targets[i]; 848 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 849 if (target->fwdev == NULL || target->fwdev == fwdev) 850 break; 851 if (fwdev == NULL) { 852 /* device has removed in lower driver */ 853 sbp_cam_detach_target(target); 854 sbp_free_target(target); 855 } 856 } 857 /* traverse device list */ 858 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 859 SBP_DEBUG(0) 860 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", 861 __func__, fwdev->eui.hi, fwdev->eui.lo, 862 (fwdev->status != FWDEVATTACHED) ? "not" : "", 863 fwdev->status); 864 END_DEBUG 865 alive = SBP_FWDEV_ALIVE(fwdev); 866 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 867 target = &sbp->targets[i]; 868 if(target->fwdev == fwdev ) { 869 /* known target */ 870 break; 871 } 872 } 873 if(i == SBP_NUM_TARGETS){ 874 if (alive) { 875 /* new target */ 876 target = sbp_alloc_target(sbp, fwdev); 877 if (target == NULL) 878 continue; 879 } else { 880 continue; 881 } 882 } 883 sbp_probe_target((void *)target); 884 if (target->num_lun == 0) 885 sbp_free_target(target); 886 } 887 SBP_LOCK(sbp); 888 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 889 sbp->sim->flags &= ~SIMQ_FREEZED; 890 SBP_UNLOCK(sbp); 891 } 892 893 #if NEED_RESPONSE 894 static void 895 sbp_loginres_callback(struct fw_xfer *xfer){ 896 int s; 897 struct sbp_dev *sdev; 898 sdev = (struct sbp_dev *)xfer->sc; 899 SBP_DEBUG(1) 900 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); 901 END_DEBUG 902 /* recycle */ 903 s = splfw(); 904 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 905 splx(s); 906 return; 907 } 908 #endif 909 910 static __inline void 911 sbp_xfer_free(struct fw_xfer *xfer) 912 { 913 struct sbp_dev *sdev; 914 int s; 915 916 sdev = (struct sbp_dev *)xfer->sc; 917 fw_xfer_unload(xfer); 918 s = splfw(); 919 SBP_LOCK(sdev->target->sbp); 920 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 921 SBP_UNLOCK(sdev->target->sbp); 922 splx(s); 923 } 924 925 static void 926 sbp_reset_start_callback(struct fw_xfer *xfer) 927 { 928 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 929 struct sbp_target *target = sdev->target; 930 int i; 931 932 if (xfer->resp != 0) { 933 device_printf(sdev->target->sbp->fd.dev, 934 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 935 } 936 937 for (i = 0; i < target->num_lun; i++) { 938 tsdev = target->luns[i]; 939 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 940 sbp_login(tsdev); 941 } 942 } 943 944 static void 945 sbp_reset_start(struct sbp_dev *sdev) 946 { 947 struct fw_xfer *xfer; 948 struct fw_pkt *fp; 949 950 SBP_DEBUG(0) 951 device_printf(sdev->target->sbp->fd.dev, 952 "%s:%s\n", __func__,sdev->bustgtlun); 953 END_DEBUG 954 955 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 956 xfer->hand = sbp_reset_start_callback; 957 fp = &xfer->send.hdr; 958 fp->mode.wreqq.dest_hi = 0xffff; 959 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 960 fp->mode.wreqq.data = htonl(0xf); 961 fw_asyreq(xfer->fc, -1, xfer); 962 } 963 964 static void 965 sbp_mgm_callback(struct fw_xfer *xfer) 966 { 967 struct sbp_dev *sdev; 968 int resp; 969 970 sdev = (struct sbp_dev *)xfer->sc; 971 972 SBP_DEBUG(1) 973 device_printf(sdev->target->sbp->fd.dev, 974 "%s:%s\n", __func__, sdev->bustgtlun); 975 END_DEBUG 976 resp = xfer->resp; 977 sbp_xfer_free(xfer); 978 return; 979 } 980 981 static struct sbp_dev * 982 sbp_next_dev(struct sbp_target *target, int lun) 983 { 984 struct sbp_dev **sdevp; 985 int i; 986 987 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 988 i++, sdevp++) 989 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 990 return(*sdevp); 991 return(NULL); 992 } 993 994 #define SCAN_PRI 1 995 static void 996 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 997 { 998 struct sbp_target *target; 999 struct sbp_dev *sdev; 1000 1001 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 1002 target = sdev->target; 1003 SBP_DEBUG(0) 1004 device_printf(sdev->target->sbp->fd.dev, 1005 "%s:%s\n", __func__, sdev->bustgtlun); 1006 END_DEBUG 1007 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1008 sdev->status = SBP_DEV_ATTACHED; 1009 } else { 1010 device_printf(sdev->target->sbp->fd.dev, 1011 "%s:%s failed\n", __func__, sdev->bustgtlun); 1012 } 1013 sdev = sbp_next_dev(target, sdev->lun_id + 1); 1014 if (sdev == NULL) { 1015 free(ccb, M_SBP); 1016 return; 1017 } 1018 /* reuse ccb */ 1019 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1020 ccb->ccb_h.ccb_sdev_ptr = sdev; 1021 xpt_action(ccb); 1022 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1023 sdev->freeze = 1; 1024 } 1025 1026 static void 1027 sbp_cam_scan_target(void *arg) 1028 { 1029 struct sbp_target *target = (struct sbp_target *)arg; 1030 struct sbp_dev *sdev; 1031 union ccb *ccb; 1032 1033 sdev = sbp_next_dev(target, 0); 1034 if (sdev == NULL) { 1035 printf("sbp_cam_scan_target: nothing to do for target%d\n", 1036 target->target_id); 1037 return; 1038 } 1039 SBP_DEBUG(0) 1040 device_printf(sdev->target->sbp->fd.dev, 1041 "%s:%s\n", __func__, sdev->bustgtlun); 1042 END_DEBUG 1043 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO); 1044 if (ccb == NULL) { 1045 printf("sbp_cam_scan_target: malloc failed\n"); 1046 return; 1047 } 1048 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1049 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1050 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1051 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1052 ccb->crcn.flags = CAM_FLAG_NONE; 1053 ccb->ccb_h.ccb_sdev_ptr = sdev; 1054 1055 /* The scan is in progress now. */ 1056 SBP_LOCK(target->sbp); 1057 xpt_action(ccb); 1058 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1059 sdev->freeze = 1; 1060 SBP_UNLOCK(target->sbp); 1061 } 1062 1063 static __inline void 1064 sbp_scan_dev(struct sbp_dev *sdev) 1065 { 1066 sdev->status = SBP_DEV_PROBE; 1067 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000, 1068 sbp_cam_scan_target, (void *)sdev->target); 1069 } 1070 1071 static void 1072 sbp_do_attach(struct fw_xfer *xfer) 1073 { 1074 struct sbp_dev *sdev; 1075 struct sbp_target *target; 1076 struct sbp_softc *sbp; 1077 1078 sdev = (struct sbp_dev *)xfer->sc; 1079 target = sdev->target; 1080 sbp = target->sbp; 1081 SBP_DEBUG(0) 1082 device_printf(sdev->target->sbp->fd.dev, 1083 "%s:%s\n", __func__, sdev->bustgtlun); 1084 END_DEBUG 1085 sbp_xfer_free(xfer); 1086 1087 if (sdev->path == NULL) 1088 xpt_create_path(&sdev->path, xpt_periph, 1089 cam_sim_path(target->sbp->sim), 1090 target->target_id, sdev->lun_id); 1091 1092 /* 1093 * Let CAM scan the bus if we are in the boot process. 1094 * XXX xpt_scan_bus cannot detect LUN larger than 0 1095 * if LUN 0 doesn't exists. 1096 */ 1097 if (sbp_cold > 0) { 1098 sdev->status = SBP_DEV_ATTACHED; 1099 return; 1100 } 1101 1102 sbp_scan_dev(sdev); 1103 return; 1104 } 1105 1106 static void 1107 sbp_agent_reset_callback(struct fw_xfer *xfer) 1108 { 1109 struct sbp_dev *sdev; 1110 1111 sdev = (struct sbp_dev *)xfer->sc; 1112 SBP_DEBUG(1) 1113 device_printf(sdev->target->sbp->fd.dev, 1114 "%s:%s\n", __func__, sdev->bustgtlun); 1115 END_DEBUG 1116 if (xfer->resp != 0) { 1117 device_printf(sdev->target->sbp->fd.dev, 1118 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); 1119 } 1120 1121 sbp_xfer_free(xfer); 1122 if (sdev->path) { 1123 SBP_LOCK(sdev->target->sbp); 1124 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1125 sdev->freeze = 0; 1126 SBP_UNLOCK(sdev->target->sbp); 1127 } 1128 } 1129 1130 static void 1131 sbp_agent_reset(struct sbp_dev *sdev) 1132 { 1133 struct fw_xfer *xfer; 1134 struct fw_pkt *fp; 1135 1136 SBP_DEBUG(0) 1137 device_printf(sdev->target->sbp->fd.dev, 1138 "%s:%s\n", __func__, sdev->bustgtlun); 1139 END_DEBUG 1140 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1141 if (xfer == NULL) 1142 return; 1143 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1144 xfer->hand = sbp_agent_reset_callback; 1145 else 1146 xfer->hand = sbp_do_attach; 1147 fp = &xfer->send.hdr; 1148 fp->mode.wreqq.data = htonl(0xf); 1149 fw_asyreq(xfer->fc, -1, xfer); 1150 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1151 } 1152 1153 static void 1154 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1155 { 1156 struct sbp_dev *sdev; 1157 1158 sdev = (struct sbp_dev *)xfer->sc; 1159 SBP_DEBUG(1) 1160 device_printf(sdev->target->sbp->fd.dev, 1161 "%s:%s\n", __func__, sdev->bustgtlun); 1162 END_DEBUG 1163 sbp_xfer_free(xfer); 1164 sbp_agent_reset(sdev); 1165 } 1166 1167 static void 1168 sbp_busy_timeout(struct sbp_dev *sdev) 1169 { 1170 struct fw_pkt *fp; 1171 struct fw_xfer *xfer; 1172 SBP_DEBUG(0) 1173 device_printf(sdev->target->sbp->fd.dev, 1174 "%s:%s\n", __func__, sdev->bustgtlun); 1175 END_DEBUG 1176 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1177 1178 xfer->hand = sbp_busy_timeout_callback; 1179 fp = &xfer->send.hdr; 1180 fp->mode.wreqq.dest_hi = 0xffff; 1181 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1182 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1183 fw_asyreq(xfer->fc, -1, xfer); 1184 } 1185 1186 static void 1187 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1188 { 1189 struct sbp_dev *sdev; 1190 sdev = (struct sbp_dev *)xfer->sc; 1191 1192 SBP_DEBUG(2) 1193 device_printf(sdev->target->sbp->fd.dev, 1194 "%s:%s\n", __func__, sdev->bustgtlun); 1195 END_DEBUG 1196 if (xfer->resp != 0) { 1197 /* XXX */ 1198 printf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1199 } 1200 sbp_xfer_free(xfer); 1201 1202 SBP_LOCK(sdev->target->sbp); 1203 sdev->flags &= ~ORB_POINTER_ACTIVE; 1204 1205 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1206 struct sbp_ocb *ocb; 1207 1208 sdev->flags &= ~ORB_POINTER_NEED; 1209 ocb = STAILQ_FIRST(&sdev->ocbs); 1210 if (ocb != NULL) 1211 sbp_orb_pointer(sdev, ocb); 1212 } 1213 SBP_UNLOCK(sdev->target->sbp); 1214 return; 1215 } 1216 1217 static void 1218 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1219 { 1220 struct fw_xfer *xfer; 1221 struct fw_pkt *fp; 1222 SBP_DEBUG(1) 1223 device_printf(sdev->target->sbp->fd.dev, 1224 "%s:%s 0x%08x\n", 1225 __func__, sdev->bustgtlun, 1226 (uint32_t)ocb->bus_addr); 1227 END_DEBUG 1228 1229 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 1230 1231 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1232 SBP_DEBUG(0) 1233 printf("%s: orb pointer active\n", __func__); 1234 END_DEBUG 1235 sdev->flags |= ORB_POINTER_NEED; 1236 return; 1237 } 1238 1239 sdev->flags |= ORB_POINTER_ACTIVE; 1240 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08); 1241 if (xfer == NULL) 1242 return; 1243 xfer->hand = sbp_orb_pointer_callback; 1244 1245 fp = &xfer->send.hdr; 1246 fp->mode.wreqb.len = 8; 1247 fp->mode.wreqb.extcode = 0; 1248 xfer->send.payload[0] = 1249 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1250 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr); 1251 1252 /* 1253 * sbp_xfer_free() will attempt to acquire 1254 * the SBP lock on entrance. Also, this removes 1255 * a LOR between the firewire layer and sbp 1256 */ 1257 SBP_UNLOCK(sdev->target->sbp); 1258 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1259 sbp_xfer_free(xfer); 1260 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1261 xpt_done(ocb->ccb); 1262 } 1263 SBP_LOCK(sdev->target->sbp); 1264 } 1265 1266 static void 1267 sbp_doorbell_callback(struct fw_xfer *xfer) 1268 { 1269 struct sbp_dev *sdev; 1270 sdev = (struct sbp_dev *)xfer->sc; 1271 1272 SBP_DEBUG(1) 1273 device_printf(sdev->target->sbp->fd.dev, 1274 "%s:%s\n", __func__, sdev->bustgtlun); 1275 END_DEBUG 1276 if (xfer->resp != 0) { 1277 /* XXX */ 1278 device_printf(sdev->target->sbp->fd.dev, 1279 "%s: xfer->resp = %d\n", __func__, xfer->resp); 1280 } 1281 sbp_xfer_free(xfer); 1282 sdev->flags &= ~ORB_DOORBELL_ACTIVE; 1283 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { 1284 sdev->flags &= ~ORB_DOORBELL_NEED; 1285 SBP_LOCK(sdev->target->sbp); 1286 sbp_doorbell(sdev); 1287 SBP_UNLOCK(sdev->target->sbp); 1288 } 1289 return; 1290 } 1291 1292 static void 1293 sbp_doorbell(struct sbp_dev *sdev) 1294 { 1295 struct fw_xfer *xfer; 1296 struct fw_pkt *fp; 1297 SBP_DEBUG(1) 1298 device_printf(sdev->target->sbp->fd.dev, 1299 "%s:%s\n", __func__, sdev->bustgtlun); 1300 END_DEBUG 1301 1302 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { 1303 sdev->flags |= ORB_DOORBELL_NEED; 1304 return; 1305 } 1306 sdev->flags |= ORB_DOORBELL_ACTIVE; 1307 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10); 1308 if (xfer == NULL) 1309 return; 1310 xfer->hand = sbp_doorbell_callback; 1311 fp = &xfer->send.hdr; 1312 fp->mode.wreqq.data = htonl(0xf); 1313 fw_asyreq(xfer->fc, -1, xfer); 1314 } 1315 1316 static struct fw_xfer * 1317 sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset) 1318 { 1319 struct fw_xfer *xfer; 1320 struct fw_pkt *fp; 1321 struct sbp_target *target; 1322 int s, new = 0; 1323 1324 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 1325 1326 target = sdev->target; 1327 s = splfw(); 1328 xfer = STAILQ_FIRST(&target->xferlist); 1329 if (xfer == NULL) { 1330 if (target->n_xfer > 5 /* XXX */) { 1331 printf("sbp: no more xfer for this target\n"); 1332 splx(s); 1333 return(NULL); 1334 } 1335 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1336 if(xfer == NULL){ 1337 printf("sbp: fw_xfer_alloc_buf failed\n"); 1338 splx(s); 1339 return NULL; 1340 } 1341 target->n_xfer ++; 1342 if (debug) 1343 printf("sbp: alloc %d xfer\n", target->n_xfer); 1344 new = 1; 1345 } else { 1346 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1347 } 1348 splx(s); 1349 1350 if (new) { 1351 xfer->recv.pay_len = 0; 1352 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1353 xfer->fc = sdev->target->sbp->fd.fc; 1354 } 1355 1356 if (tcode == FWTCODE_WREQB) 1357 xfer->send.pay_len = 8; 1358 else 1359 xfer->send.pay_len = 0; 1360 1361 xfer->sc = (caddr_t)sdev; 1362 fp = &xfer->send.hdr; 1363 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1364 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1365 fp->mode.wreqq.tlrt = 0; 1366 fp->mode.wreqq.tcode = tcode; 1367 fp->mode.wreqq.pri = 0; 1368 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1369 1370 return xfer; 1371 1372 } 1373 1374 static struct fw_xfer * 1375 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1376 { 1377 struct sbp_softc *sbp = sdev->target->sbp; 1378 struct fw_xfer *xfer; 1379 1380 SBP_LOCK(sbp); 1381 xfer = sbp_write_cmd_locked(sdev, tcode, offset); 1382 SBP_UNLOCK(sbp); 1383 1384 return (xfer); 1385 } 1386 1387 static void 1388 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1389 { 1390 struct fw_xfer *xfer; 1391 struct fw_pkt *fp; 1392 struct sbp_ocb *ocb; 1393 struct sbp_target *target; 1394 int s, nid; 1395 1396 target = sdev->target; 1397 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1398 1399 s = splfw(); 1400 SBP_LOCK(target->sbp); 1401 if (func == ORB_FUN_RUNQUEUE) { 1402 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1403 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1404 SBP_UNLOCK(target->sbp); 1405 splx(s); 1406 return; 1407 } 1408 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1409 SBP_UNLOCK(target->sbp); 1410 goto start; 1411 } 1412 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1413 SBP_UNLOCK(target->sbp); 1414 splx(s); 1415 /* XXX */ 1416 return; 1417 } 1418 SBP_UNLOCK(target->sbp); 1419 ocb->flags = OCB_ACT_MGM; 1420 ocb->sdev = sdev; 1421 1422 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1423 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1424 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1425 1426 SBP_DEBUG(0) 1427 device_printf(sdev->target->sbp->fd.dev, 1428 "%s:%s %s\n", 1429 __func__,sdev->bustgtlun, 1430 orb_fun_name[(func>>16)&0xf]); 1431 END_DEBUG 1432 switch (func) { 1433 case ORB_FUN_LGI: 1434 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1435 ocb->orb[2] = htonl(nid << 16); 1436 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1437 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1438 if (ex_login) 1439 ocb->orb[4] |= htonl(ORB_EXV); 1440 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1441 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1442 break; 1443 case ORB_FUN_ATA: 1444 ocb->orb[0] = htonl((0 << 16) | 0); 1445 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1446 /* fall through */ 1447 case ORB_FUN_RCN: 1448 case ORB_FUN_LGO: 1449 case ORB_FUN_LUR: 1450 case ORB_FUN_RST: 1451 case ORB_FUN_ATS: 1452 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1453 break; 1454 } 1455 1456 if (target->mgm_ocb_cur != NULL) { 1457 /* there is a standing ORB */ 1458 SBP_LOCK(target->sbp); 1459 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1460 SBP_UNLOCK(target->sbp); 1461 splx(s); 1462 return; 1463 } 1464 start: 1465 target->mgm_ocb_cur = ocb; 1466 splx(s); 1467 1468 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1469 sbp_mgm_timeout, (caddr_t)ocb); 1470 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1471 if(xfer == NULL){ 1472 return; 1473 } 1474 xfer->hand = sbp_mgm_callback; 1475 1476 fp = &xfer->send.hdr; 1477 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1478 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1479 fp->mode.wreqb.len = 8; 1480 fp->mode.wreqb.extcode = 0; 1481 xfer->send.payload[0] = htonl(nid << 16); 1482 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1483 1484 fw_asyreq(xfer->fc, -1, xfer); 1485 } 1486 1487 static void 1488 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1489 { 1490 struct ccb_scsiio *csio; 1491 1492 csio = &ocb->ccb->csio; 1493 printf("%s:%d:%d XPT_SCSI_IO: " 1494 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1495 ", flags: 0x%02x, " 1496 "%db cmd/%db data/%db sense\n", 1497 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1498 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1499 csio->cdb_io.cdb_bytes[0], 1500 csio->cdb_io.cdb_bytes[1], 1501 csio->cdb_io.cdb_bytes[2], 1502 csio->cdb_io.cdb_bytes[3], 1503 csio->cdb_io.cdb_bytes[4], 1504 csio->cdb_io.cdb_bytes[5], 1505 csio->cdb_io.cdb_bytes[6], 1506 csio->cdb_io.cdb_bytes[7], 1507 csio->cdb_io.cdb_bytes[8], 1508 csio->cdb_io.cdb_bytes[9], 1509 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1510 csio->cdb_len, csio->dxfer_len, 1511 csio->sense_len); 1512 } 1513 1514 static void 1515 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1516 { 1517 struct sbp_cmd_status *sbp_cmd_status; 1518 struct scsi_sense_data *sense; 1519 1520 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1521 sense = &ocb->ccb->csio.sense_data; 1522 1523 SBP_DEBUG(0) 1524 sbp_print_scsi_cmd(ocb); 1525 /* XXX need decode status */ 1526 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1527 ocb->sdev->bustgtlun, 1528 sbp_cmd_status->status, 1529 sbp_cmd_status->sfmt, 1530 sbp_cmd_status->valid, 1531 sbp_cmd_status->s_key, 1532 sbp_cmd_status->s_code, 1533 sbp_cmd_status->s_qlfr, 1534 sbp_status->len); 1535 END_DEBUG 1536 1537 switch (sbp_cmd_status->status) { 1538 case SCSI_STATUS_CHECK_COND: 1539 case SCSI_STATUS_BUSY: 1540 case SCSI_STATUS_CMD_TERMINATED: 1541 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1542 sense->error_code = SSD_CURRENT_ERROR; 1543 }else{ 1544 sense->error_code = SSD_DEFERRED_ERROR; 1545 } 1546 if(sbp_cmd_status->valid) 1547 sense->error_code |= SSD_ERRCODE_VALID; 1548 sense->flags = sbp_cmd_status->s_key; 1549 if(sbp_cmd_status->mark) 1550 sense->flags |= SSD_FILEMARK; 1551 if(sbp_cmd_status->eom) 1552 sense->flags |= SSD_EOM; 1553 if(sbp_cmd_status->ill_len) 1554 sense->flags |= SSD_ILI; 1555 1556 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1557 1558 if (sbp_status->len <= 1) 1559 /* XXX not scsi status. shouldn't be happened */ 1560 sense->extra_len = 0; 1561 else if (sbp_status->len <= 4) 1562 /* add_sense_code(_qual), info, cmd_spec_info */ 1563 sense->extra_len = 6; 1564 else 1565 /* fru, sense_key_spec */ 1566 sense->extra_len = 10; 1567 1568 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1569 1570 sense->add_sense_code = sbp_cmd_status->s_code; 1571 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1572 sense->fru = sbp_cmd_status->fru; 1573 1574 bcopy(&sbp_cmd_status->s_keydep[0], 1575 &sense->sense_key_spec[0], 3); 1576 1577 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1578 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1579 | CAM_AUTOSNS_VALID; 1580 /* 1581 { 1582 uint8_t j, *tmp; 1583 tmp = sense; 1584 for( j = 0 ; j < 32 ; j+=8){ 1585 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1586 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1587 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1588 } 1589 1590 } 1591 */ 1592 break; 1593 default: 1594 device_printf(ocb->sdev->target->sbp->fd.dev, 1595 "%s:%s unknown scsi status 0x%x\n", 1596 __func__, ocb->sdev->bustgtlun, 1597 sbp_cmd_status->status); 1598 } 1599 } 1600 1601 static void 1602 sbp_fix_inq_data(struct sbp_ocb *ocb) 1603 { 1604 union ccb *ccb; 1605 struct sbp_dev *sdev; 1606 struct scsi_inquiry_data *inq; 1607 1608 ccb = ocb->ccb; 1609 sdev = ocb->sdev; 1610 1611 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1612 return; 1613 SBP_DEBUG(1) 1614 device_printf(sdev->target->sbp->fd.dev, 1615 "%s:%s\n", __func__, sdev->bustgtlun); 1616 END_DEBUG 1617 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1618 switch (SID_TYPE(inq)) { 1619 case T_DIRECT: 1620 #if 0 1621 /* 1622 * XXX Convert Direct Access device to RBC. 1623 * I've never seen FireWire DA devices which support READ_6. 1624 */ 1625 if (SID_TYPE(inq) == T_DIRECT) 1626 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1627 #endif 1628 /* fall through */ 1629 case T_RBC: 1630 /* 1631 * Override vendor/product/revision information. 1632 * Some devices sometimes return strange strings. 1633 */ 1634 #if 1 1635 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1636 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1637 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1638 #endif 1639 break; 1640 } 1641 /* 1642 * Force to enable/disable tagged queuing. 1643 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. 1644 */ 1645 if (sbp_tags > 0) 1646 inq->flags |= SID_CmdQue; 1647 else if (sbp_tags < 0) 1648 inq->flags &= ~SID_CmdQue; 1649 1650 } 1651 1652 static void 1653 sbp_recv1(struct fw_xfer *xfer) 1654 { 1655 struct fw_pkt *rfp; 1656 #if NEED_RESPONSE 1657 struct fw_pkt *sfp; 1658 #endif 1659 struct sbp_softc *sbp; 1660 struct sbp_dev *sdev; 1661 struct sbp_ocb *ocb; 1662 struct sbp_login_res *login_res = NULL; 1663 struct sbp_status *sbp_status; 1664 struct sbp_target *target; 1665 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1666 uint32_t addr; 1667 /* 1668 uint32_t *ld; 1669 ld = xfer->recv.buf; 1670 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1671 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1672 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1673 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1674 */ 1675 sbp = (struct sbp_softc *)xfer->sc; 1676 if (xfer->resp != 0){ 1677 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1678 goto done0; 1679 } 1680 if (xfer->recv.payload == NULL){ 1681 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1682 goto done0; 1683 } 1684 rfp = &xfer->recv.hdr; 1685 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1686 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1687 goto done0; 1688 } 1689 sbp_status = (struct sbp_status *)xfer->recv.payload; 1690 addr = rfp->mode.wreqb.dest_lo; 1691 SBP_DEBUG(2) 1692 printf("received address 0x%x\n", addr); 1693 END_DEBUG 1694 t = SBP_ADDR2TRG(addr); 1695 if (t >= SBP_NUM_TARGETS) { 1696 device_printf(sbp->fd.dev, 1697 "sbp_recv1: invalid target %d\n", t); 1698 goto done0; 1699 } 1700 target = &sbp->targets[t]; 1701 l = SBP_ADDR2LUN(addr); 1702 if (l >= target->num_lun || target->luns[l] == NULL) { 1703 device_printf(sbp->fd.dev, 1704 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1705 goto done0; 1706 } 1707 sdev = target->luns[l]; 1708 1709 ocb = NULL; 1710 switch (sbp_status->src) { 1711 case 0: 1712 case 1: 1713 /* check mgm_ocb_cur first */ 1714 ocb = target->mgm_ocb_cur; 1715 if (ocb != NULL) { 1716 if (OCB_MATCH(ocb, sbp_status)) { 1717 callout_stop(&target->mgm_ocb_timeout); 1718 target->mgm_ocb_cur = NULL; 1719 break; 1720 } 1721 } 1722 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1723 if (ocb == NULL) { 1724 device_printf(sdev->target->sbp->fd.dev, 1725 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1726 "%s:%s No ocb(%lx) on the queue\n", 1727 #else 1728 "%s:%s No ocb(%x) on the queue\n", 1729 #endif 1730 __func__,sdev->bustgtlun, 1731 ntohl(sbp_status->orb_lo)); 1732 } 1733 break; 1734 case 2: 1735 /* unsolicit */ 1736 device_printf(sdev->target->sbp->fd.dev, 1737 "%s:%s unsolicit status received\n", 1738 __func__, sdev->bustgtlun); 1739 break; 1740 default: 1741 device_printf(sdev->target->sbp->fd.dev, 1742 "%s:%s unknown sbp_status->src\n", 1743 __func__, sdev->bustgtlun); 1744 } 1745 1746 status_valid0 = (sbp_status->src < 2 1747 && sbp_status->resp == ORB_RES_CMPL 1748 && sbp_status->dead == 0); 1749 status_valid = (status_valid0 && sbp_status->status == 0); 1750 1751 if (!status_valid0 || debug > 2){ 1752 int status; 1753 SBP_DEBUG(0) 1754 device_printf(sdev->target->sbp->fd.dev, 1755 "%s:%s ORB status src:%x resp:%x dead:%x" 1756 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1757 " len:%x stat:%x orb:%x%08lx\n", 1758 #else 1759 " len:%x stat:%x orb:%x%08x\n", 1760 #endif 1761 __func__, sdev->bustgtlun, 1762 sbp_status->src, sbp_status->resp, sbp_status->dead, 1763 sbp_status->len, sbp_status->status, 1764 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1765 END_DEBUG 1766 device_printf(sdev->target->sbp->fd.dev, 1767 "%s\n", sdev->bustgtlun); 1768 status = sbp_status->status; 1769 switch(sbp_status->resp) { 1770 case 0: 1771 if (status > MAX_ORB_STATUS0) 1772 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1773 else 1774 printf("%s\n", orb_status0[status]); 1775 break; 1776 case 1: 1777 printf("Obj: %s, Error: %s\n", 1778 orb_status1_object[(status>>6) & 3], 1779 orb_status1_serial_bus_error[status & 0xf]); 1780 break; 1781 case 2: 1782 printf("Illegal request\n"); 1783 break; 1784 case 3: 1785 printf("Vendor dependent\n"); 1786 break; 1787 default: 1788 printf("unknown respose code %d\n", sbp_status->resp); 1789 } 1790 } 1791 1792 /* we have to reset the fetch agent if it's dead */ 1793 if (sbp_status->dead) { 1794 if (sdev->path) { 1795 SBP_LOCK(sbp); 1796 xpt_freeze_devq(sdev->path, 1); 1797 sdev->freeze ++; 1798 SBP_UNLOCK(sbp); 1799 } 1800 reset_agent = 1; 1801 } 1802 1803 if (ocb == NULL) 1804 goto done; 1805 1806 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1807 case ORB_FMT_NOP: 1808 break; 1809 case ORB_FMT_VED: 1810 break; 1811 case ORB_FMT_STD: 1812 switch(ocb->flags) { 1813 case OCB_ACT_MGM: 1814 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1815 reset_agent = 0; 1816 switch(orb_fun) { 1817 case ORB_FUN_LGI: 1818 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1819 login_res = sdev->login; 1820 login_res->len = ntohs(login_res->len); 1821 login_res->id = ntohs(login_res->id); 1822 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1823 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1824 if (status_valid) { 1825 SBP_DEBUG(0) 1826 device_printf(sdev->target->sbp->fd.dev, 1827 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", 1828 __func__, sdev->bustgtlun, 1829 login_res->len, login_res->id, 1830 login_res->cmd_hi, login_res->cmd_lo, 1831 ntohs(login_res->recon_hold)); 1832 END_DEBUG 1833 sbp_busy_timeout(sdev); 1834 } else { 1835 /* forgot logout? */ 1836 device_printf(sdev->target->sbp->fd.dev, 1837 "%s:%s login failed\n", 1838 __func__, sdev->bustgtlun); 1839 sdev->status = SBP_DEV_RESET; 1840 } 1841 break; 1842 case ORB_FUN_RCN: 1843 login_res = sdev->login; 1844 if (status_valid) { 1845 SBP_DEBUG(0) 1846 device_printf(sdev->target->sbp->fd.dev, 1847 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", 1848 __func__, sdev->bustgtlun, 1849 login_res->len, login_res->id, 1850 login_res->cmd_hi, login_res->cmd_lo); 1851 END_DEBUG 1852 if (sdev->status == SBP_DEV_ATTACHED) 1853 sbp_scan_dev(sdev); 1854 else 1855 sbp_agent_reset(sdev); 1856 } else { 1857 /* reconnection hold time exceed? */ 1858 SBP_DEBUG(0) 1859 device_printf(sdev->target->sbp->fd.dev, 1860 "%s:%s reconnect failed\n", 1861 __func__, sdev->bustgtlun); 1862 END_DEBUG 1863 sbp_login(sdev); 1864 } 1865 break; 1866 case ORB_FUN_LGO: 1867 sdev->status = SBP_DEV_RESET; 1868 break; 1869 case ORB_FUN_RST: 1870 sbp_busy_timeout(sdev); 1871 break; 1872 case ORB_FUN_LUR: 1873 case ORB_FUN_ATA: 1874 case ORB_FUN_ATS: 1875 sbp_agent_reset(sdev); 1876 break; 1877 default: 1878 device_printf(sdev->target->sbp->fd.dev, 1879 "%s:%s unknown function %d\n", 1880 __func__, sdev->bustgtlun, orb_fun); 1881 break; 1882 } 1883 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1884 break; 1885 case OCB_ACT_CMD: 1886 sdev->timeout = 0; 1887 if(ocb->ccb != NULL){ 1888 union ccb *ccb; 1889 1890 ccb = ocb->ccb; 1891 if(sbp_status->len > 1){ 1892 sbp_scsi_status(sbp_status, ocb); 1893 }else{ 1894 if(sbp_status->resp != ORB_RES_CMPL){ 1895 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1896 }else{ 1897 ccb->ccb_h.status = CAM_REQ_CMP; 1898 } 1899 } 1900 /* fix up inq data */ 1901 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1902 sbp_fix_inq_data(ocb); 1903 SBP_LOCK(sbp); 1904 xpt_done(ccb); 1905 SBP_UNLOCK(sbp); 1906 } 1907 break; 1908 default: 1909 break; 1910 } 1911 } 1912 1913 if (!use_doorbell) 1914 sbp_free_ocb(sdev, ocb); 1915 done: 1916 if (reset_agent) 1917 sbp_agent_reset(sdev); 1918 1919 done0: 1920 xfer->recv.pay_len = SBP_RECV_LEN; 1921 /* The received packet is usually small enough to be stored within 1922 * the buffer. In that case, the controller return ack_complete and 1923 * no respose is necessary. 1924 * 1925 * XXX fwohci.c and firewire.c should inform event_code such as 1926 * ack_complete or ack_pending to upper driver. 1927 */ 1928 #if NEED_RESPONSE 1929 xfer->send.off = 0; 1930 sfp = (struct fw_pkt *)xfer->send.buf; 1931 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1932 xfer->dst = sfp->mode.wres.dst; 1933 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1934 xfer->hand = sbp_loginres_callback; 1935 1936 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1937 sfp->mode.wres.tcode = FWTCODE_WRES; 1938 sfp->mode.wres.rtcode = 0; 1939 sfp->mode.wres.pri = 0; 1940 1941 fw_asyreq(xfer->fc, -1, xfer); 1942 #else 1943 /* recycle */ 1944 /* we don't need a lock here because bottom half is serialized */ 1945 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1946 #endif 1947 1948 return; 1949 1950 } 1951 1952 static void 1953 sbp_recv(struct fw_xfer *xfer) 1954 { 1955 int s; 1956 1957 s = splcam(); 1958 sbp_recv1(xfer); 1959 splx(s); 1960 } 1961 /* 1962 * sbp_attach() 1963 */ 1964 static int 1965 sbp_attach(device_t dev) 1966 { 1967 struct sbp_softc *sbp; 1968 struct cam_devq *devq; 1969 struct firewire_comm *fc; 1970 int i, s, error; 1971 1972 if (DFLTPHYS > SBP_MAXPHYS) 1973 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " 1974 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, 1975 SBP_MAXPHYS / 1024); 1976 1977 if (!firewire_phydma_enable) 1978 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " 1979 "for SBP over FireWire.\n"); 1980 SBP_DEBUG(0) 1981 printf("sbp_attach (cold=%d)\n", cold); 1982 END_DEBUG 1983 1984 if (cold) 1985 sbp_cold ++; 1986 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1987 bzero(sbp, sizeof(struct sbp_softc)); 1988 sbp->fd.dev = dev; 1989 sbp->fd.fc = fc = device_get_ivars(dev); 1990 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); 1991 1992 if (max_speed < 0) 1993 max_speed = fc->speed; 1994 1995 error = bus_dma_tag_create(/*parent*/fc->dmat, 1996 /* XXX shoud be 4 for sane backend? */ 1997 /*alignment*/1, 1998 /*boundary*/0, 1999 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 2000 /*highaddr*/BUS_SPACE_MAXADDR, 2001 /*filter*/NULL, /*filterarg*/NULL, 2002 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 2003 /*maxsegsz*/SBP_SEG_MAX, 2004 /*flags*/BUS_DMA_ALLOCNOW, 2005 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 2006 /*lockfunc*/busdma_lock_mutex, 2007 /*lockarg*/&sbp->mtx, 2008 #endif 2009 &sbp->dmat); 2010 if (error != 0) { 2011 printf("sbp_attach: Could not allocate DMA tag " 2012 "- error %d\n", error); 2013 return (ENOMEM); 2014 } 2015 2016 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 2017 if (devq == NULL) 2018 return (ENXIO); 2019 2020 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 2021 sbp->targets[i].fwdev = NULL; 2022 sbp->targets[i].luns = NULL; 2023 } 2024 2025 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 2026 device_get_unit(dev), 2027 &sbp->mtx, 2028 /*untagged*/ 1, 2029 /*tagged*/ SBP_QUEUE_LEN - 1, 2030 devq); 2031 2032 if (sbp->sim == NULL) { 2033 cam_simq_free(devq); 2034 return (ENXIO); 2035 } 2036 2037 SBP_LOCK(sbp); 2038 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) 2039 goto fail; 2040 2041 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 2042 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2043 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2044 goto fail; 2045 } 2046 SBP_UNLOCK(sbp); 2047 2048 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 2049 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 2050 sbp->fwb.end = sbp->fwb.start + 0xffff; 2051 /* pre-allocate xfer */ 2052 STAILQ_INIT(&sbp->fwb.xferlist); 2053 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, 2054 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, 2055 fc, (void *)sbp, sbp_recv); 2056 2057 fw_bindadd(fc, &sbp->fwb); 2058 2059 sbp->fd.post_busreset = sbp_post_busreset; 2060 sbp->fd.post_explore = sbp_post_explore; 2061 2062 if (fc->status != -1) { 2063 s = splfw(); 2064 sbp_post_busreset((void *)sbp); 2065 sbp_post_explore((void *)sbp); 2066 splx(s); 2067 } 2068 SBP_LOCK(sbp); 2069 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 2070 SBP_UNLOCK(sbp); 2071 2072 return (0); 2073 fail: 2074 SBP_UNLOCK(sbp); 2075 cam_sim_free(sbp->sim, /*free_devq*/TRUE); 2076 return (ENXIO); 2077 } 2078 2079 static int 2080 sbp_logout_all(struct sbp_softc *sbp) 2081 { 2082 struct sbp_target *target; 2083 struct sbp_dev *sdev; 2084 int i, j; 2085 2086 SBP_DEBUG(0) 2087 printf("sbp_logout_all\n"); 2088 END_DEBUG 2089 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 2090 target = &sbp->targets[i]; 2091 if (target->luns == NULL) 2092 continue; 2093 for (j = 0; j < target->num_lun; j++) { 2094 sdev = target->luns[j]; 2095 if (sdev == NULL) 2096 continue; 2097 callout_stop(&sdev->login_callout); 2098 if (sdev->status >= SBP_DEV_TOATTACH && 2099 sdev->status <= SBP_DEV_ATTACHED) 2100 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 2101 } 2102 } 2103 2104 return 0; 2105 } 2106 2107 static int 2108 sbp_shutdown(device_t dev) 2109 { 2110 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2111 2112 sbp_logout_all(sbp); 2113 return (0); 2114 } 2115 2116 static void 2117 sbp_free_sdev(struct sbp_dev *sdev) 2118 { 2119 int i; 2120 2121 if (sdev == NULL) 2122 return; 2123 for (i = 0; i < SBP_QUEUE_LEN; i++) 2124 bus_dmamap_destroy(sdev->target->sbp->dmat, 2125 sdev->ocb[i].dmamap); 2126 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 2127 free(sdev, M_SBP); 2128 sdev = NULL; 2129 } 2130 2131 static void 2132 sbp_free_target(struct sbp_target *target) 2133 { 2134 struct sbp_softc *sbp; 2135 struct fw_xfer *xfer, *next; 2136 int i; 2137 2138 if (target->luns == NULL) 2139 return; 2140 callout_stop(&target->mgm_ocb_timeout); 2141 sbp = target->sbp; 2142 for (i = 0; i < target->num_lun; i++) 2143 sbp_free_sdev(target->luns[i]); 2144 2145 for (xfer = STAILQ_FIRST(&target->xferlist); 2146 xfer != NULL; xfer = next) { 2147 next = STAILQ_NEXT(xfer, link); 2148 fw_xfer_free_buf(xfer); 2149 } 2150 STAILQ_INIT(&target->xferlist); 2151 free(target->luns, M_SBP); 2152 target->num_lun = 0; 2153 target->luns = NULL; 2154 target->fwdev = NULL; 2155 } 2156 2157 static int 2158 sbp_detach(device_t dev) 2159 { 2160 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2161 struct firewire_comm *fc = sbp->fd.fc; 2162 int i; 2163 2164 SBP_DEBUG(0) 2165 printf("sbp_detach\n"); 2166 END_DEBUG 2167 2168 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2169 sbp_cam_detach_target(&sbp->targets[i]); 2170 2171 SBP_LOCK(sbp); 2172 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2173 xpt_free_path(sbp->path); 2174 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2175 cam_sim_free(sbp->sim, /*free_devq*/ TRUE); 2176 SBP_UNLOCK(sbp); 2177 2178 sbp_logout_all(sbp); 2179 2180 /* XXX wait for logout completion */ 2181 pause("sbpdtc", hz/2); 2182 2183 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2184 sbp_free_target(&sbp->targets[i]); 2185 2186 fw_bindremove(fc, &sbp->fwb); 2187 fw_xferlist_remove(&sbp->fwb.xferlist); 2188 2189 bus_dma_tag_destroy(sbp->dmat); 2190 mtx_destroy(&sbp->mtx); 2191 2192 return (0); 2193 } 2194 2195 static void 2196 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2197 { 2198 if (sdev == NULL) 2199 return; 2200 if (sdev->status == SBP_DEV_DEAD) 2201 return; 2202 if (sdev->status == SBP_DEV_RESET) 2203 return; 2204 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2205 if (sdev->path) { 2206 SBP_LOCK(sdev->target->sbp); 2207 xpt_release_devq(sdev->path, 2208 sdev->freeze, TRUE); 2209 sdev->freeze = 0; 2210 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2211 xpt_free_path(sdev->path); 2212 sdev->path = NULL; 2213 SBP_UNLOCK(sdev->target->sbp); 2214 } 2215 } 2216 2217 static void 2218 sbp_cam_detach_target(struct sbp_target *target) 2219 { 2220 int i; 2221 2222 if (target->luns != NULL) { 2223 SBP_DEBUG(0) 2224 printf("sbp_detach_target %d\n", target->target_id); 2225 END_DEBUG 2226 callout_stop(&target->scan_callout); 2227 for (i = 0; i < target->num_lun; i++) 2228 sbp_cam_detach_sdev(target->luns[i]); 2229 } 2230 } 2231 2232 static void 2233 sbp_target_reset(struct sbp_dev *sdev, int method) 2234 { 2235 int i; 2236 struct sbp_target *target = sdev->target; 2237 struct sbp_dev *tsdev; 2238 2239 for (i = 0; i < target->num_lun; i++) { 2240 tsdev = target->luns[i]; 2241 if (tsdev == NULL) 2242 continue; 2243 if (tsdev->status == SBP_DEV_DEAD) 2244 continue; 2245 if (tsdev->status == SBP_DEV_RESET) 2246 continue; 2247 SBP_LOCK(target->sbp); 2248 xpt_freeze_devq(tsdev->path, 1); 2249 tsdev->freeze ++; 2250 SBP_UNLOCK(target->sbp); 2251 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2252 if (method == 2) 2253 tsdev->status = SBP_DEV_LOGIN; 2254 } 2255 switch(method) { 2256 case 1: 2257 printf("target reset\n"); 2258 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2259 break; 2260 case 2: 2261 printf("reset start\n"); 2262 sbp_reset_start(sdev); 2263 break; 2264 } 2265 2266 } 2267 2268 static void 2269 sbp_mgm_timeout(void *arg) 2270 { 2271 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2272 struct sbp_dev *sdev = ocb->sdev; 2273 struct sbp_target *target = sdev->target; 2274 2275 device_printf(sdev->target->sbp->fd.dev, 2276 "%s:%s request timeout(mgm orb:0x%08x)\n", 2277 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2278 target->mgm_ocb_cur = NULL; 2279 sbp_free_ocb(sdev, ocb); 2280 #if 0 2281 /* XXX */ 2282 printf("run next request\n"); 2283 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2284 #endif 2285 device_printf(sdev->target->sbp->fd.dev, 2286 "%s:%s reset start\n", 2287 __func__, sdev->bustgtlun); 2288 sbp_reset_start(sdev); 2289 } 2290 2291 static void 2292 sbp_timeout(void *arg) 2293 { 2294 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2295 struct sbp_dev *sdev = ocb->sdev; 2296 2297 device_printf(sdev->target->sbp->fd.dev, 2298 "%s:%s request timeout(cmd orb:0x%08x) ... ", 2299 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); 2300 2301 sdev->timeout ++; 2302 switch(sdev->timeout) { 2303 case 1: 2304 printf("agent reset\n"); 2305 SBP_LOCK(sdev->target->sbp); 2306 xpt_freeze_devq(sdev->path, 1); 2307 sdev->freeze ++; 2308 SBP_UNLOCK(sdev->target->sbp); 2309 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2310 sbp_agent_reset(sdev); 2311 break; 2312 case 2: 2313 case 3: 2314 sbp_target_reset(sdev, sdev->timeout - 1); 2315 break; 2316 #if 0 2317 default: 2318 /* XXX give up */ 2319 sbp_cam_detach_target(target); 2320 if (target->luns != NULL) 2321 free(target->luns, M_SBP); 2322 target->num_lun = 0; 2323 target->luns = NULL; 2324 target->fwdev = NULL; 2325 #endif 2326 } 2327 } 2328 2329 static void 2330 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2331 { 2332 2333 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2334 struct sbp_target *target = NULL; 2335 struct sbp_dev *sdev = NULL; 2336 2337 /* target:lun -> sdev mapping */ 2338 if (sbp != NULL 2339 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2340 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2341 target = &sbp->targets[ccb->ccb_h.target_id]; 2342 if (target->fwdev != NULL 2343 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2344 && ccb->ccb_h.target_lun < target->num_lun) { 2345 sdev = target->luns[ccb->ccb_h.target_lun]; 2346 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2347 sdev->status != SBP_DEV_PROBE) 2348 sdev = NULL; 2349 } 2350 } 2351 2352 SBP_DEBUG(1) 2353 if (sdev == NULL) 2354 printf("invalid target %d lun %d\n", 2355 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2356 END_DEBUG 2357 2358 switch (ccb->ccb_h.func_code) { 2359 case XPT_SCSI_IO: 2360 case XPT_RESET_DEV: 2361 case XPT_GET_TRAN_SETTINGS: 2362 case XPT_SET_TRAN_SETTINGS: 2363 case XPT_CALC_GEOMETRY: 2364 if (sdev == NULL) { 2365 SBP_DEBUG(1) 2366 printf("%s:%d:%d:func_code 0x%04x: " 2367 "Invalid target (target needed)\n", 2368 device_get_nameunit(sbp->fd.dev), 2369 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2370 ccb->ccb_h.func_code); 2371 END_DEBUG 2372 2373 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2374 xpt_done(ccb); 2375 return; 2376 } 2377 break; 2378 case XPT_PATH_INQ: 2379 case XPT_NOOP: 2380 /* The opcodes sometimes aimed at a target (sc is valid), 2381 * sometimes aimed at the SIM (sc is invalid and target is 2382 * CAM_TARGET_WILDCARD) 2383 */ 2384 if (sbp == NULL && 2385 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2386 SBP_DEBUG(0) 2387 printf("%s:%d:%d func_code 0x%04x: " 2388 "Invalid target (no wildcard)\n", 2389 device_get_nameunit(sbp->fd.dev), 2390 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2391 ccb->ccb_h.func_code); 2392 END_DEBUG 2393 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2394 xpt_done(ccb); 2395 return; 2396 } 2397 break; 2398 default: 2399 /* XXX Hm, we should check the input parameters */ 2400 break; 2401 } 2402 2403 switch (ccb->ccb_h.func_code) { 2404 case XPT_SCSI_IO: 2405 { 2406 struct ccb_scsiio *csio; 2407 struct sbp_ocb *ocb; 2408 int speed; 2409 void *cdb; 2410 2411 csio = &ccb->csio; 2412 mtx_assert(sim->mtx, MA_OWNED); 2413 2414 SBP_DEBUG(2) 2415 printf("%s:%d:%d XPT_SCSI_IO: " 2416 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2417 ", flags: 0x%02x, " 2418 "%db cmd/%db data/%db sense\n", 2419 device_get_nameunit(sbp->fd.dev), 2420 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2421 csio->cdb_io.cdb_bytes[0], 2422 csio->cdb_io.cdb_bytes[1], 2423 csio->cdb_io.cdb_bytes[2], 2424 csio->cdb_io.cdb_bytes[3], 2425 csio->cdb_io.cdb_bytes[4], 2426 csio->cdb_io.cdb_bytes[5], 2427 csio->cdb_io.cdb_bytes[6], 2428 csio->cdb_io.cdb_bytes[7], 2429 csio->cdb_io.cdb_bytes[8], 2430 csio->cdb_io.cdb_bytes[9], 2431 ccb->ccb_h.flags & CAM_DIR_MASK, 2432 csio->cdb_len, csio->dxfer_len, 2433 csio->sense_len); 2434 END_DEBUG 2435 if(sdev == NULL){ 2436 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2437 xpt_done(ccb); 2438 return; 2439 } 2440 #if 0 2441 /* if we are in probe stage, pass only probe commands */ 2442 if (sdev->status == SBP_DEV_PROBE) { 2443 char *name; 2444 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2445 printf("probe stage, periph name: %s\n", name); 2446 if (strcmp(name, "probe") != 0) { 2447 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2448 xpt_done(ccb); 2449 return; 2450 } 2451 } 2452 #endif 2453 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2454 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2455 if (sdev->freeze == 0) { 2456 SBP_LOCK(sdev->target->sbp); 2457 xpt_freeze_devq(sdev->path, 1); 2458 sdev->freeze ++; 2459 SBP_UNLOCK(sdev->target->sbp); 2460 } 2461 xpt_done(ccb); 2462 return; 2463 } 2464 2465 ocb->flags = OCB_ACT_CMD; 2466 ocb->sdev = sdev; 2467 ocb->ccb = ccb; 2468 ccb->ccb_h.ccb_sdev_ptr = sdev; 2469 ocb->orb[0] = htonl(1 << 31); 2470 ocb->orb[1] = 0; 2471 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2472 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2473 speed = min(target->fwdev->speed, max_speed); 2474 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2475 | ORB_CMD_MAXP(speed + 7)); 2476 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2477 ocb->orb[4] |= htonl(ORB_CMD_IN); 2478 } 2479 2480 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2481 printf("sbp: CAM_SCATTER_VALID\n"); 2482 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2483 printf("sbp: CAM_DATA_PHYS\n"); 2484 2485 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2486 cdb = (void *)csio->cdb_io.cdb_ptr; 2487 else 2488 cdb = (void *)&csio->cdb_io.cdb_bytes; 2489 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2490 /* 2491 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2492 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2493 */ 2494 if (ccb->csio.dxfer_len > 0) { 2495 int s, error; 2496 2497 s = splsoftvm(); 2498 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2499 /*dma map*/ocb->dmamap, 2500 ccb->csio.data_ptr, 2501 ccb->csio.dxfer_len, 2502 sbp_execute_ocb, 2503 ocb, 2504 /*flags*/0); 2505 splx(s); 2506 if (error) 2507 printf("sbp: bus_dmamap_load error %d\n", error); 2508 } else 2509 sbp_execute_ocb(ocb, NULL, 0, 0); 2510 break; 2511 } 2512 case XPT_CALC_GEOMETRY: 2513 { 2514 struct ccb_calc_geometry *ccg; 2515 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2516 uint32_t size_mb; 2517 uint32_t secs_per_cylinder; 2518 int extended = 1; 2519 #endif 2520 2521 ccg = &ccb->ccg; 2522 if (ccg->block_size == 0) { 2523 printf("sbp_action1: block_size is 0.\n"); 2524 ccb->ccb_h.status = CAM_REQ_INVALID; 2525 xpt_done(ccb); 2526 break; 2527 } 2528 SBP_DEBUG(1) 2529 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2530 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2531 "Volume size = %d\n", 2532 #else 2533 "Volume size = %jd\n", 2534 #endif 2535 device_get_nameunit(sbp->fd.dev), 2536 cam_sim_path(sbp->sim), 2537 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2538 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2539 (uintmax_t) 2540 #endif 2541 ccg->volume_size); 2542 END_DEBUG 2543 2544 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2545 size_mb = ccg->volume_size 2546 / ((1024L * 1024L) / ccg->block_size); 2547 2548 if (size_mb > 1024 && extended) { 2549 ccg->heads = 255; 2550 ccg->secs_per_track = 63; 2551 } else { 2552 ccg->heads = 64; 2553 ccg->secs_per_track = 32; 2554 } 2555 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2556 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2557 ccb->ccb_h.status = CAM_REQ_CMP; 2558 #else 2559 cam_calc_geometry(ccg, /*extended*/1); 2560 #endif 2561 xpt_done(ccb); 2562 break; 2563 } 2564 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2565 { 2566 2567 SBP_DEBUG(1) 2568 printf("%s:%d:XPT_RESET_BUS: \n", 2569 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2570 END_DEBUG 2571 2572 ccb->ccb_h.status = CAM_REQ_INVALID; 2573 xpt_done(ccb); 2574 break; 2575 } 2576 case XPT_PATH_INQ: /* Path routing inquiry */ 2577 { 2578 struct ccb_pathinq *cpi = &ccb->cpi; 2579 2580 SBP_DEBUG(1) 2581 printf("%s:%d:%d XPT_PATH_INQ:.\n", 2582 device_get_nameunit(sbp->fd.dev), 2583 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2584 END_DEBUG 2585 cpi->version_num = 1; /* XXX??? */ 2586 cpi->hba_inquiry = PI_TAG_ABLE; 2587 cpi->target_sprt = 0; 2588 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2589 cpi->hba_eng_cnt = 0; 2590 cpi->max_target = SBP_NUM_TARGETS - 1; 2591 cpi->max_lun = SBP_NUM_LUNS - 1; 2592 cpi->initiator_id = SBP_INITIATOR; 2593 cpi->bus_id = sim->bus_id; 2594 cpi->base_transfer_speed = 400 * 1000 / 8; 2595 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2596 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2597 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2598 cpi->unit_number = sim->unit_number; 2599 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2600 cpi->transport_version = 2; 2601 cpi->protocol = PROTO_SCSI; 2602 cpi->protocol_version = SCSI_REV_2; 2603 2604 cpi->ccb_h.status = CAM_REQ_CMP; 2605 xpt_done(ccb); 2606 break; 2607 } 2608 case XPT_GET_TRAN_SETTINGS: 2609 { 2610 struct ccb_trans_settings *cts = &ccb->cts; 2611 struct ccb_trans_settings_scsi *scsi = 2612 &cts->proto_specific.scsi; 2613 struct ccb_trans_settings_spi *spi = 2614 &cts->xport_specific.spi; 2615 2616 cts->protocol = PROTO_SCSI; 2617 cts->protocol_version = SCSI_REV_2; 2618 cts->transport = XPORT_SPI; /* should have a FireWire */ 2619 cts->transport_version = 2; 2620 spi->valid = CTS_SPI_VALID_DISC; 2621 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2622 scsi->valid = CTS_SCSI_VALID_TQ; 2623 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2624 SBP_DEBUG(1) 2625 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2626 device_get_nameunit(sbp->fd.dev), 2627 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2628 END_DEBUG 2629 cts->ccb_h.status = CAM_REQ_CMP; 2630 xpt_done(ccb); 2631 break; 2632 } 2633 case XPT_ABORT: 2634 ccb->ccb_h.status = CAM_UA_ABORT; 2635 xpt_done(ccb); 2636 break; 2637 case XPT_SET_TRAN_SETTINGS: 2638 /* XXX */ 2639 default: 2640 ccb->ccb_h.status = CAM_REQ_INVALID; 2641 xpt_done(ccb); 2642 break; 2643 } 2644 return; 2645 } 2646 2647 static void 2648 sbp_action(struct cam_sim *sim, union ccb *ccb) 2649 { 2650 int s; 2651 2652 s = splfw(); 2653 sbp_action1(sim, ccb); 2654 splx(s); 2655 } 2656 2657 static void 2658 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2659 { 2660 int i; 2661 struct sbp_ocb *ocb; 2662 struct sbp_ocb *prev; 2663 bus_dma_segment_t *s; 2664 2665 if (error) 2666 printf("sbp_execute_ocb: error=%d\n", error); 2667 2668 ocb = (struct sbp_ocb *)arg; 2669 2670 SBP_DEBUG(2) 2671 printf("sbp_execute_ocb: seg %d", seg); 2672 for (i = 0; i < seg; i++) 2673 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2674 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); 2675 #else 2676 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2677 (uintmax_t)segments[i].ds_len); 2678 #endif 2679 printf("\n"); 2680 END_DEBUG 2681 2682 if (seg == 1) { 2683 /* direct pointer */ 2684 s = &segments[0]; 2685 if (s->ds_len > SBP_SEG_MAX) 2686 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2687 ocb->orb[3] = htonl(s->ds_addr); 2688 ocb->orb[4] |= htonl(s->ds_len); 2689 } else if(seg > 1) { 2690 /* page table */ 2691 for (i = 0; i < seg; i++) { 2692 s = &segments[i]; 2693 SBP_DEBUG(0) 2694 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2695 if (s->ds_len < 16) 2696 printf("sbp_execute_ocb: warning, " 2697 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2698 "segment length(%d) is less than 16." 2699 #else 2700 "segment length(%zd) is less than 16." 2701 #endif 2702 "(seg=%d/%d)\n", s->ds_len, i+1, seg); 2703 END_DEBUG 2704 if (s->ds_len > SBP_SEG_MAX) 2705 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2706 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2707 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2708 } 2709 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2710 } 2711 2712 if (seg > 0) 2713 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2714 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2715 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2716 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2717 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2718 if (use_doorbell) { 2719 if (prev == NULL) { 2720 if (ocb->sdev->last_ocb != NULL) 2721 sbp_doorbell(ocb->sdev); 2722 else 2723 sbp_orb_pointer(ocb->sdev, ocb); 2724 } 2725 } else { 2726 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2727 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2728 sbp_orb_pointer(ocb->sdev, ocb); 2729 } 2730 } 2731 } 2732 2733 static void 2734 sbp_poll(struct cam_sim *sim) 2735 { 2736 struct sbp_softc *sbp; 2737 struct firewire_comm *fc; 2738 2739 sbp = (struct sbp_softc *)sim->softc; 2740 fc = sbp->fd.fc; 2741 2742 fc->poll(fc, 0, -1); 2743 2744 return; 2745 } 2746 2747 static struct sbp_ocb * 2748 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2749 { 2750 struct sbp_ocb *ocb; 2751 struct sbp_ocb *next; 2752 int s = splfw(), order = 0; 2753 int flags; 2754 2755 SBP_DEBUG(1) 2756 device_printf(sdev->target->sbp->fd.dev, 2757 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2758 "%s:%s 0x%08lx src %d\n", 2759 #else 2760 "%s:%s 0x%08x src %d\n", 2761 #endif 2762 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); 2763 END_DEBUG 2764 SBP_LOCK(sdev->target->sbp); 2765 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2766 next = STAILQ_NEXT(ocb, ocb); 2767 flags = ocb->flags; 2768 if (OCB_MATCH(ocb, sbp_status)) { 2769 /* found */ 2770 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2771 if (ocb->ccb != NULL) 2772 untimeout(sbp_timeout, (caddr_t)ocb, 2773 ocb->ccb->ccb_h.timeout_ch); 2774 if (ntohl(ocb->orb[4]) & 0xffff) { 2775 bus_dmamap_sync(sdev->target->sbp->dmat, 2776 ocb->dmamap, 2777 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2778 BUS_DMASYNC_POSTREAD : 2779 BUS_DMASYNC_POSTWRITE); 2780 bus_dmamap_unload(sdev->target->sbp->dmat, 2781 ocb->dmamap); 2782 } 2783 if (!use_doorbell) { 2784 if (sbp_status->src == SRC_NO_NEXT) { 2785 if (next != NULL) 2786 sbp_orb_pointer(sdev, next); 2787 else if (order > 0) { 2788 /* 2789 * Unordered execution 2790 * We need to send pointer for 2791 * next ORB 2792 */ 2793 sdev->flags |= ORB_LINK_DEAD; 2794 } 2795 } 2796 } else { 2797 /* 2798 * XXX this is not correct for unordered 2799 * execution. 2800 */ 2801 if (sdev->last_ocb != NULL) { 2802 SBP_UNLOCK(sdev->target->sbp); 2803 sbp_free_ocb(sdev, sdev->last_ocb); 2804 SBP_LOCK(sdev->target->sbp); 2805 } 2806 sdev->last_ocb = ocb; 2807 if (next != NULL && 2808 sbp_status->src == SRC_NO_NEXT) 2809 sbp_doorbell(sdev); 2810 } 2811 break; 2812 } else 2813 order ++; 2814 } 2815 SBP_UNLOCK(sdev->target->sbp); 2816 splx(s); 2817 SBP_DEBUG(0) 2818 if (ocb && order > 0) { 2819 device_printf(sdev->target->sbp->fd.dev, 2820 "%s:%s unordered execution order:%d\n", 2821 __func__, sdev->bustgtlun, order); 2822 } 2823 END_DEBUG 2824 return (ocb); 2825 } 2826 2827 static struct sbp_ocb * 2828 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2829 { 2830 int s = splfw(); 2831 struct sbp_ocb *prev, *prev2; 2832 2833 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 2834 SBP_DEBUG(1) 2835 device_printf(sdev->target->sbp->fd.dev, 2836 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2837 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr); 2838 #else 2839 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2840 #endif 2841 END_DEBUG 2842 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2843 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2844 2845 if (ocb->ccb != NULL) 2846 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb, 2847 (ocb->ccb->ccb_h.timeout * hz) / 1000); 2848 2849 if (use_doorbell && prev == NULL) 2850 prev2 = sdev->last_ocb; 2851 2852 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { 2853 SBP_DEBUG(1) 2854 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2855 printf("linking chain 0x%x -> 0x%x\n", 2856 prev2->bus_addr, ocb->bus_addr); 2857 #else 2858 printf("linking chain 0x%jx -> 0x%jx\n", 2859 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); 2860 #endif 2861 END_DEBUG 2862 /* 2863 * Suppress compiler optimization so that orb[1] must be written first. 2864 * XXX We may need an explicit memory barrier for other architectures 2865 * other than i386/amd64. 2866 */ 2867 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); 2868 *(volatile uint32_t *)&prev2->orb[0] = 0; 2869 } 2870 splx(s); 2871 2872 return prev; 2873 } 2874 2875 static struct sbp_ocb * 2876 sbp_get_ocb(struct sbp_dev *sdev) 2877 { 2878 struct sbp_ocb *ocb; 2879 int s = splfw(); 2880 2881 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED); 2882 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2883 if (ocb == NULL) { 2884 sdev->flags |= ORB_SHORTAGE; 2885 printf("ocb shortage!!!\n"); 2886 splx(s); 2887 return NULL; 2888 } 2889 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2890 splx(s); 2891 ocb->ccb = NULL; 2892 return (ocb); 2893 } 2894 2895 static void 2896 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2897 { 2898 ocb->flags = 0; 2899 ocb->ccb = NULL; 2900 2901 SBP_LOCK(sdev->target->sbp); 2902 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2903 if ((sdev->flags & ORB_SHORTAGE) != 0) { 2904 int count; 2905 2906 sdev->flags &= ~ORB_SHORTAGE; 2907 count = sdev->freeze; 2908 sdev->freeze = 0; 2909 xpt_release_devq(sdev->path, count, TRUE); 2910 } 2911 SBP_UNLOCK(sdev->target->sbp); 2912 } 2913 2914 static void 2915 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2916 { 2917 struct sbp_dev *sdev; 2918 2919 sdev = ocb->sdev; 2920 SBP_DEBUG(0) 2921 device_printf(sdev->target->sbp->fd.dev, 2922 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2923 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr); 2924 #else 2925 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); 2926 #endif 2927 END_DEBUG 2928 SBP_DEBUG(1) 2929 if (ocb->ccb != NULL) 2930 sbp_print_scsi_cmd(ocb); 2931 END_DEBUG 2932 if (ntohl(ocb->orb[4]) & 0xffff) { 2933 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2934 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2935 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2936 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2937 } 2938 if (ocb->ccb != NULL) { 2939 untimeout(sbp_timeout, (caddr_t)ocb, 2940 ocb->ccb->ccb_h.timeout_ch); 2941 ocb->ccb->ccb_h.status = status; 2942 SBP_LOCK(sdev->target->sbp); 2943 xpt_done(ocb->ccb); 2944 SBP_UNLOCK(sdev->target->sbp); 2945 } 2946 sbp_free_ocb(sdev, ocb); 2947 } 2948 2949 static void 2950 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2951 { 2952 int s; 2953 struct sbp_ocb *ocb, *next; 2954 STAILQ_HEAD(, sbp_ocb) temp; 2955 2956 s = splfw(); 2957 2958 STAILQ_INIT(&temp); 2959 SBP_LOCK(sdev->target->sbp); 2960 STAILQ_CONCAT(&temp, &sdev->ocbs); 2961 STAILQ_INIT(&sdev->ocbs); 2962 SBP_UNLOCK(sdev->target->sbp); 2963 2964 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2965 next = STAILQ_NEXT(ocb, ocb); 2966 sbp_abort_ocb(ocb, status); 2967 } 2968 if (sdev->last_ocb != NULL) { 2969 sbp_free_ocb(sdev, sdev->last_ocb); 2970 sdev->last_ocb = NULL; 2971 } 2972 2973 splx(s); 2974 } 2975 2976 static devclass_t sbp_devclass; 2977 2978 static device_method_t sbp_methods[] = { 2979 /* device interface */ 2980 DEVMETHOD(device_identify, sbp_identify), 2981 DEVMETHOD(device_probe, sbp_probe), 2982 DEVMETHOD(device_attach, sbp_attach), 2983 DEVMETHOD(device_detach, sbp_detach), 2984 DEVMETHOD(device_shutdown, sbp_shutdown), 2985 2986 { 0, 0 } 2987 }; 2988 2989 static driver_t sbp_driver = { 2990 "sbp", 2991 sbp_methods, 2992 sizeof(struct sbp_softc), 2993 }; 2994 #ifdef __DragonFly__ 2995 DECLARE_DUMMY_MODULE(sbp); 2996 #endif 2997 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2998 MODULE_VERSION(sbp, 1); 2999 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 3000 MODULE_DEPEND(sbp, cam, 1, 1, 1);
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