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: src/sys/dev/firewire/sbp.c,v 1.74 2004/01/08 14:58:09 simokawa Exp $ 35 * $DragonFly: src/sys/dev/disk/sbp/sbp.c,v 1.12 2004/09/17 03:39:39 joerg Exp $ 36 * 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/conf.h> 42 #include <sys/module.h> 43 #include <sys/bus.h> 44 #include <sys/kernel.h> 45 #include <sys/sysctl.h> 46 #include <machine/bus.h> 47 #include <sys/malloc.h> 48 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 49 #include <sys/lock.h> 50 #include <sys/mutex.h> 51 #endif 52 53 #if defined(__DragonFly__) || __FreeBSD_version < 500106 54 #include <sys/devicestat.h> /* for struct devstat */ 55 #endif 56 57 #ifdef __DragonFly__ 58 #include <bus/cam/cam.h> 59 #include <bus/cam/cam_ccb.h> 60 #include <bus/cam/cam_sim.h> 61 #include <bus/cam/cam_xpt_sim.h> 62 #include <bus/cam/cam_debug.h> 63 #include <bus/cam/cam_periph.h> 64 #include <bus/cam/scsi/scsi_all.h> 65 66 #include <bus/firewire/firewire.h> 67 #include <bus/firewire/firewirereg.h> 68 #include <bus/firewire/fwdma.h> 69 #include <bus/firewire/iec13213.h> 70 #include "sbp.h" 71 #else 72 #include <cam/cam.h> 73 #include <cam/cam_ccb.h> 74 #include <cam/cam_sim.h> 75 #include <cam/cam_xpt_sim.h> 76 #include <cam/cam_debug.h> 77 #include <cam/cam_periph.h> 78 #include <cam/scsi/scsi_all.h> 79 #endif 80 81 #define ccb_sdev_ptr spriv_ptr0 82 #define ccb_sbp_ptr spriv_ptr1 83 84 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 85 /* 86 * Scan_bus doesn't work for more than 8 LUNs 87 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 88 */ 89 #define SBP_NUM_LUNS 64 90 #define SBP_DMA_SIZE PAGE_SIZE 91 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 92 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 93 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 94 95 /* 96 * STATUS FIFO addressing 97 * bit 98 * ----------------------- 99 * 0- 1( 2): 0 (alingment) 100 * 2- 7( 6): target 101 * 8-15( 8): lun 102 * 16-31( 8): reserved 103 * 32-47(16): SBP_BIND_HI 104 * 48-64(16): bus_id, node_id 105 */ 106 #define SBP_BIND_HI 0x1 107 #define SBP_DEV2ADDR(t, l) \ 108 (((u_int64_t)SBP_BIND_HI << 32) \ 109 | (((l) & 0xff) << 8) \ 110 | (((t) & 0x3f) << 2)) 111 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 112 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 113 #define SBP_INITIATOR 7 114 115 static char *orb_fun_name[] = { 116 ORB_FUN_NAMES 117 }; 118 119 static int debug = 0; 120 static int auto_login = 1; 121 static int max_speed = -1; 122 static int sbp_cold = 1; 123 static int ex_login = 1; 124 static int login_delay = 1000; /* msec */ 125 static int scan_delay = 500; /* msec */ 126 static int sbp_tags = 0; 127 128 SYSCTL_DECL(_hw_firewire); 129 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); 130 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 131 "SBP debug flag"); 132 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 133 "SBP perform login automatically"); 134 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 135 "SBP transfer max speed"); 136 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 137 &ex_login, 0, "SBP transfer max speed"); 138 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 139 &login_delay, 0, "SBP login delay in msec"); 140 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 141 &scan_delay, 0, "SBP scan delay in msec"); 142 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 143 "SBP tagged queuing support"); 144 145 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 146 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 147 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 148 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 149 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 150 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 151 152 #define NEED_RESPONSE 0 153 154 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 155 #ifdef __sparc64__ /* iommu */ 156 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX) 157 #else 158 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE) 159 #endif 160 struct sbp_ocb { 161 STAILQ_ENTRY(sbp_ocb) ocb; 162 union ccb *ccb; 163 bus_addr_t bus_addr; 164 u_int32_t orb[8]; 165 #define IND_PTR_OFFSET (8*sizeof(u_int32_t)) 166 struct ind_ptr ind_ptr[SBP_IND_MAX]; 167 struct sbp_dev *sdev; 168 int flags; /* XXX should be removed */ 169 bus_dmamap_t dmamap; 170 }; 171 172 #define OCB_ACT_MGM 0 173 #define OCB_ACT_CMD 1 174 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 175 176 struct sbp_dev{ 177 #define SBP_DEV_RESET 0 /* accept login */ 178 #define SBP_DEV_LOGIN 1 /* to login */ 179 #if 0 180 #define SBP_DEV_RECONN 2 /* to reconnect */ 181 #endif 182 #define SBP_DEV_TOATTACH 3 /* to attach */ 183 #define SBP_DEV_PROBE 4 /* scan lun */ 184 #define SBP_DEV_ATTACHED 5 /* in operation */ 185 #define SBP_DEV_DEAD 6 /* unavailable unit */ 186 #define SBP_DEV_RETRY 7 /* unavailable unit */ 187 u_int8_t status:4, 188 timeout:4; 189 u_int8_t type; 190 u_int16_t lun_id; 191 u_int16_t freeze; 192 #define ORB_LINK_DEAD (1 << 0) 193 #define VALID_LUN (1 << 1) 194 #define ORB_POINTER_ACTIVE (1 << 2) 195 #define ORB_POINTER_NEED (1 << 3) 196 u_int16_t flags; 197 struct cam_path *path; 198 struct sbp_target *target; 199 struct fwdma_alloc dma; 200 struct sbp_login_res *login; 201 struct callout login_callout; 202 struct sbp_ocb *ocb; 203 STAILQ_HEAD(, sbp_ocb) ocbs; 204 STAILQ_HEAD(, sbp_ocb) free_ocbs; 205 char vendor[32]; 206 char product[32]; 207 char revision[10]; 208 }; 209 210 struct sbp_target { 211 int target_id; 212 int num_lun; 213 struct sbp_dev **luns; 214 struct sbp_softc *sbp; 215 struct fw_device *fwdev; 216 u_int32_t mgm_hi, mgm_lo; 217 struct sbp_ocb *mgm_ocb_cur; 218 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 219 struct callout mgm_ocb_timeout; 220 struct callout scan_callout; 221 STAILQ_HEAD(, fw_xfer) xferlist; 222 int n_xfer; 223 }; 224 225 struct sbp_softc { 226 struct firewire_dev_comm fd; 227 struct cam_sim *sim; 228 struct cam_path *path; 229 struct sbp_target targets[SBP_NUM_TARGETS]; 230 struct fw_bind fwb; 231 bus_dma_tag_t dmat; 232 struct timeval last_busreset; 233 #define SIMQ_FREEZED 1 234 int flags; 235 }; 236 237 static void sbp_post_explore (void *); 238 static void sbp_recv (struct fw_xfer *); 239 static void sbp_mgm_callback (struct fw_xfer *); 240 #if 0 241 static void sbp_cmd_callback (struct fw_xfer *); 242 #endif 243 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 244 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 245 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 246 static void sbp_abort_ocb (struct sbp_ocb *, int); 247 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 248 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 249 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 250 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 251 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 252 static void sbp_cam_detach_sdev(struct sbp_dev *); 253 static void sbp_free_sdev(struct sbp_dev *); 254 static void sbp_cam_detach_target (struct sbp_target *); 255 static void sbp_free_target (struct sbp_target *); 256 static void sbp_mgm_timeout (void *arg); 257 static void sbp_timeout (void *arg); 258 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 259 260 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 261 262 /* cam related functions */ 263 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 264 static void sbp_poll(struct cam_sim *sim); 265 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 266 static void sbp_cam_scan_target(void *arg); 267 268 static char *orb_status0[] = { 269 /* 0 */ "No additional information to report", 270 /* 1 */ "Request type not supported", 271 /* 2 */ "Speed not supported", 272 /* 3 */ "Page size not supported", 273 /* 4 */ "Access denied", 274 /* 5 */ "Logical unit not supported", 275 /* 6 */ "Maximum payload too small", 276 /* 7 */ "Reserved for future standardization", 277 /* 8 */ "Resources unavailable", 278 /* 9 */ "Function rejected", 279 /* A */ "Login ID not recognized", 280 /* B */ "Dummy ORB completed", 281 /* C */ "Request aborted", 282 /* FF */ "Unspecified error" 283 #define MAX_ORB_STATUS0 0xd 284 }; 285 286 static char *orb_status1_object[] = { 287 /* 0 */ "Operation request block (ORB)", 288 /* 1 */ "Data buffer", 289 /* 2 */ "Page table", 290 /* 3 */ "Unable to specify" 291 }; 292 293 static char *orb_status1_serial_bus_error[] = { 294 /* 0 */ "Missing acknowledge", 295 /* 1 */ "Reserved; not to be used", 296 /* 2 */ "Time-out error", 297 /* 3 */ "Reserved; not to be used", 298 /* 4 */ "Busy retry limit exceeded(X)", 299 /* 5 */ "Busy retry limit exceeded(A)", 300 /* 6 */ "Busy retry limit exceeded(B)", 301 /* 7 */ "Reserved for future standardization", 302 /* 8 */ "Reserved for future standardization", 303 /* 9 */ "Reserved for future standardization", 304 /* A */ "Reserved for future standardization", 305 /* B */ "Tardy retry limit exceeded", 306 /* C */ "Conflict error", 307 /* D */ "Data error", 308 /* E */ "Type error", 309 /* F */ "Address error" 310 }; 311 312 static void 313 sbp_identify(driver_t *driver, device_t parent) 314 { 315 device_t child; 316 SBP_DEBUG(0) 317 printf("sbp_identify\n"); 318 END_DEBUG 319 320 child = BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent)); 321 } 322 323 /* 324 * sbp_probe() 325 */ 326 static int 327 sbp_probe(device_t dev) 328 { 329 device_t pa; 330 331 SBP_DEBUG(0) 332 printf("sbp_probe\n"); 333 END_DEBUG 334 335 pa = device_get_parent(dev); 336 if(device_get_unit(dev) != device_get_unit(pa)){ 337 return(ENXIO); 338 } 339 340 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 341 342 if (bootverbose) 343 debug = bootverbose; 344 return (0); 345 } 346 347 static void 348 sbp_show_sdev_info(struct sbp_dev *sdev, int new) 349 { 350 struct fw_device *fwdev; 351 352 printf("%s:%d:%d ", 353 device_get_nameunit(sdev->target->sbp->fd.dev), 354 sdev->target->target_id, 355 sdev->lun_id 356 ); 357 if (new == 2) { 358 return; 359 } 360 fwdev = sdev->target->fwdev; 361 printf("ordered:%d type:%d EUI:%08x%08x node:%d " 362 "speed:%d maxrec:%d", 363 (sdev->type & 0x40) >> 6, 364 (sdev->type & 0x1f), 365 fwdev->eui.hi, 366 fwdev->eui.lo, 367 fwdev->dst, 368 fwdev->speed, 369 fwdev->maxrec 370 ); 371 if (new) 372 printf(" new!\n"); 373 else 374 printf("\n"); 375 sbp_show_sdev_info(sdev, 2); 376 printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision); 377 } 378 379 static struct { 380 int bus; 381 int target; 382 struct fw_eui64 eui; 383 } wired[] = { 384 /* Bus Target EUI64 */ 385 #if 0 386 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 387 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 388 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 389 #endif 390 {-1, -1, {0,0}} 391 }; 392 393 static int 394 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 395 { 396 int bus, i, target=-1; 397 char w[SBP_NUM_TARGETS]; 398 399 bzero(w, sizeof(w)); 400 bus = device_get_unit(sbp->fd.dev); 401 402 /* XXX wired-down configuration should be gotten from 403 tunable or device hint */ 404 for (i = 0; wired[i].bus >= 0; i ++) { 405 if (wired[i].bus == bus) { 406 w[wired[i].target] = 1; 407 if (wired[i].eui.hi == fwdev->eui.hi && 408 wired[i].eui.lo == fwdev->eui.lo) 409 target = wired[i].target; 410 } 411 } 412 if (target >= 0) { 413 if(target < SBP_NUM_TARGETS && 414 sbp->targets[target].fwdev == NULL) 415 return(target); 416 device_printf(sbp->fd.dev, 417 "target %d is not free for %08x:%08x\n", 418 target, fwdev->eui.hi, fwdev->eui.lo); 419 target = -1; 420 } 421 /* non-wired target */ 422 for (i = 0; i < SBP_NUM_TARGETS; i ++) 423 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 424 target = i; 425 break; 426 } 427 428 return target; 429 } 430 431 static void 432 sbp_alloc_lun(struct sbp_target *target) 433 { 434 struct crom_context cc; 435 struct csrreg *reg; 436 struct sbp_dev *sdev, **newluns; 437 struct sbp_softc *sbp; 438 int maxlun, lun, i; 439 440 sbp = target->sbp; 441 crom_init_context(&cc, target->fwdev->csrrom); 442 /* XXX shoud parse appropriate unit directories only */ 443 maxlun = -1; 444 while (cc.depth >= 0) { 445 reg = crom_search_key(&cc, CROM_LUN); 446 if (reg == NULL) 447 break; 448 lun = reg->val & 0xffff; 449 SBP_DEBUG(0) 450 printf("target %d lun %d found\n", target->target_id, lun); 451 END_DEBUG 452 if (maxlun < lun) 453 maxlun = lun; 454 crom_next(&cc); 455 } 456 if (maxlun < 0) 457 printf("%s:%d no LUN found\n", 458 device_get_nameunit(target->sbp->fd.dev), 459 target->target_id); 460 461 maxlun ++; 462 if (maxlun >= SBP_NUM_LUNS) 463 maxlun = SBP_NUM_LUNS; 464 465 /* Invalidiate stale devices */ 466 for (lun = 0; lun < target->num_lun; lun ++) { 467 sdev = target->luns[lun]; 468 if (sdev == NULL) 469 continue; 470 sdev->flags &= ~VALID_LUN; 471 if (lun >= maxlun) { 472 /* lost device */ 473 sbp_cam_detach_sdev(sdev); 474 sbp_free_sdev(sdev); 475 } 476 } 477 478 /* Reallocate */ 479 if (maxlun != target->num_lun) { 480 /* 481 * note: realloc() does not support M_ZERO. We must zero 482 * the extended region manually. 483 */ 484 newluns = realloc(target->luns, 485 sizeof(struct sbp_dev *) * maxlun, 486 M_SBP, M_WAITOK); 487 488 if (maxlun > target->num_lun) { 489 bzero(&newluns[target->num_lun], 490 sizeof(struct sbp_dev *) * 491 (maxlun - target->num_lun)); 492 } 493 target->luns = newluns; 494 target->num_lun = maxlun; 495 } 496 497 crom_init_context(&cc, target->fwdev->csrrom); 498 while (cc.depth >= 0) { 499 int new = 0; 500 501 reg = crom_search_key(&cc, CROM_LUN); 502 if (reg == NULL) 503 break; 504 lun = reg->val & 0xffff; 505 if (lun >= SBP_NUM_LUNS) { 506 printf("too large lun %d\n", lun); 507 goto next; 508 } 509 510 sdev = target->luns[lun]; 511 if (sdev == NULL) { 512 sdev = malloc(sizeof(struct sbp_dev), 513 M_SBP, M_WAITOK | M_ZERO); 514 target->luns[lun] = sdev; 515 sdev->lun_id = lun; 516 sdev->target = target; 517 STAILQ_INIT(&sdev->ocbs); 518 CALLOUT_INIT(&sdev->login_callout); 519 sdev->status = SBP_DEV_RESET; 520 new = 1; 521 } 522 sdev->flags |= VALID_LUN; 523 sdev->type = (reg->val & 0xff0000) >> 16; 524 525 if (new == 0) 526 goto next; 527 528 fwdma_malloc(sbp->fd.fc, 529 /* alignment */ sizeof(u_int32_t), 530 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT); 531 if (sdev->dma.v_addr == NULL) { 532 printf("%s: dma space allocation failed\n", 533 __FUNCTION__); 534 free(sdev, M_SBP); 535 target->luns[lun] = NULL; 536 goto next; 537 } 538 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 539 sdev->ocb = (struct sbp_ocb *) 540 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 541 bzero((char *)sdev->ocb, 542 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN); 543 544 STAILQ_INIT(&sdev->free_ocbs); 545 for (i = 0; i < SBP_QUEUE_LEN; i++) { 546 struct sbp_ocb *ocb; 547 ocb = &sdev->ocb[i]; 548 ocb->bus_addr = sdev->dma.bus_addr 549 + SBP_LOGIN_SIZE 550 + sizeof(struct sbp_ocb) * i 551 + offsetof(struct sbp_ocb, orb[0]); 552 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 553 printf("sbp_attach: cannot create dmamap\n"); 554 /* XXX */ 555 goto next; 556 } 557 sbp_free_ocb(sdev, ocb); 558 } 559 next: 560 crom_next(&cc); 561 } 562 563 for (lun = 0; lun < target->num_lun; lun ++) { 564 sdev = target->luns[lun]; 565 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 566 sbp_cam_detach_sdev(sdev); 567 sbp_free_sdev(sdev); 568 target->luns[lun] = NULL; 569 } 570 } 571 } 572 573 static struct sbp_target * 574 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 575 { 576 int i; 577 struct sbp_target *target; 578 struct crom_context cc; 579 struct csrreg *reg; 580 581 SBP_DEBUG(1) 582 printf("sbp_alloc_target\n"); 583 END_DEBUG 584 i = sbp_new_target(sbp, fwdev); 585 if (i < 0) { 586 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 587 return NULL; 588 } 589 /* new target */ 590 target = &sbp->targets[i]; 591 target->sbp = sbp; 592 target->fwdev = fwdev; 593 target->target_id = i; 594 /* XXX we may want to reload mgm port after each bus reset */ 595 /* XXX there might be multiple management agents */ 596 crom_init_context(&cc, target->fwdev->csrrom); 597 reg = crom_search_key(&cc, CROM_MGM); 598 if (reg == NULL || reg->val == 0) { 599 printf("NULL management address\n"); 600 target->fwdev = NULL; 601 return NULL; 602 } 603 target->mgm_hi = 0xffff; 604 target->mgm_lo = 0xf0000000 | (reg->val << 2); 605 target->mgm_ocb_cur = NULL; 606 SBP_DEBUG(1) 607 printf("target:%d mgm_port: %x\n", i, target->mgm_lo); 608 END_DEBUG 609 STAILQ_INIT(&target->xferlist); 610 target->n_xfer = 0; 611 STAILQ_INIT(&target->mgm_ocb_queue); 612 CALLOUT_INIT(&target->mgm_ocb_timeout); 613 CALLOUT_INIT(&target->scan_callout); 614 615 target->luns = NULL; 616 target->num_lun = 0; 617 return target; 618 } 619 620 static void 621 sbp_probe_lun(struct sbp_dev *sdev) 622 { 623 struct fw_device *fwdev; 624 struct crom_context c, *cc = &c; 625 struct csrreg *reg; 626 627 bzero(sdev->vendor, sizeof(sdev->vendor)); 628 bzero(sdev->product, sizeof(sdev->product)); 629 630 fwdev = sdev->target->fwdev; 631 crom_init_context(cc, fwdev->csrrom); 632 /* get vendor string */ 633 crom_search_key(cc, CSRKEY_VENDOR); 634 crom_next(cc); 635 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 636 /* skip to the unit directory for SBP-2 */ 637 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 638 if (reg->val == CSRVAL_T10SBP2) 639 break; 640 crom_next(cc); 641 } 642 /* get firmware revision */ 643 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 644 if (reg != NULL) 645 snprintf(sdev->revision, sizeof(sdev->revision), 646 "%06x", reg->val); 647 /* get product string */ 648 crom_search_key(cc, CSRKEY_MODEL); 649 crom_next(cc); 650 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 651 } 652 653 static void 654 sbp_login_callout(void *arg) 655 { 656 struct sbp_dev *sdev = (struct sbp_dev *)arg; 657 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 658 } 659 660 static void 661 sbp_login(struct sbp_dev *sdev) 662 { 663 struct timeval delta; 664 struct timeval t; 665 int ticks = 0; 666 667 microtime(&delta); 668 timevalsub(&delta, &sdev->target->sbp->last_busreset); 669 t.tv_sec = login_delay / 1000; 670 t.tv_usec = (login_delay % 1000) * 1000; 671 timevalsub(&t, &delta); 672 if (t.tv_sec >= 0 && t.tv_usec > 0) 673 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 674 SBP_DEBUG(0) 675 printf("%s: sec = %ld usec = %ld ticks = %d\n", __FUNCTION__, 676 t.tv_sec, t.tv_usec, ticks); 677 END_DEBUG 678 callout_reset(&sdev->login_callout, ticks, 679 sbp_login_callout, (void *)(sdev)); 680 } 681 682 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 683 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 684 685 static void 686 sbp_probe_target(void *arg) 687 { 688 struct sbp_target *target = (struct sbp_target *)arg; 689 struct sbp_softc *sbp; 690 struct sbp_dev *sdev; 691 struct firewire_comm *fc; 692 int i, alive; 693 694 alive = SBP_FWDEV_ALIVE(target->fwdev); 695 SBP_DEBUG(1) 696 printf("sbp_probe_target %d\n", target->target_id); 697 if (!alive) 698 printf("not alive\n"); 699 END_DEBUG 700 701 sbp = target->sbp; 702 fc = target->sbp->fd.fc; 703 sbp_alloc_lun(target); 704 705 /* XXX untimeout mgm_ocb and dequeue */ 706 for (i=0; i < target->num_lun; i++) { 707 sdev = target->luns[i]; 708 if (sdev == NULL) 709 continue; 710 if (alive && (sdev->status != SBP_DEV_DEAD)) { 711 if (sdev->path != NULL) { 712 xpt_freeze_devq(sdev->path, 1); 713 sdev->freeze ++; 714 } 715 sbp_probe_lun(sdev); 716 SBP_DEBUG(0) 717 sbp_show_sdev_info(sdev, 718 (sdev->status == SBP_DEV_RESET)); 719 END_DEBUG 720 721 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 722 switch (sdev->status) { 723 case SBP_DEV_RESET: 724 /* new or revived target */ 725 if (auto_login) 726 sbp_login(sdev); 727 break; 728 case SBP_DEV_TOATTACH: 729 case SBP_DEV_PROBE: 730 case SBP_DEV_ATTACHED: 731 case SBP_DEV_RETRY: 732 default: 733 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 734 break; 735 } 736 } else { 737 switch (sdev->status) { 738 case SBP_DEV_ATTACHED: 739 SBP_DEBUG(0) 740 /* the device has gone */ 741 sbp_show_sdev_info(sdev, 2); 742 printf("lost target\n"); 743 END_DEBUG 744 if (sdev->path) { 745 xpt_freeze_devq(sdev->path, 1); 746 sdev->freeze ++; 747 } 748 sdev->status = SBP_DEV_RETRY; 749 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 750 break; 751 case SBP_DEV_PROBE: 752 case SBP_DEV_TOATTACH: 753 sdev->status = SBP_DEV_RESET; 754 break; 755 case SBP_DEV_RETRY: 756 case SBP_DEV_RESET: 757 case SBP_DEV_DEAD: 758 break; 759 } 760 } 761 } 762 } 763 764 static void 765 sbp_post_busreset(void *arg) 766 { 767 struct sbp_softc *sbp; 768 769 sbp = (struct sbp_softc *)arg; 770 SBP_DEBUG(0) 771 printf("sbp_post_busreset\n"); 772 END_DEBUG 773 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 774 xpt_freeze_simq(sbp->sim, /*count*/1); 775 sbp->sim->flags |= SIMQ_FREEZED; 776 } 777 microtime(&sbp->last_busreset); 778 } 779 780 static void 781 sbp_post_explore(void *arg) 782 { 783 struct sbp_softc *sbp = (struct sbp_softc *)arg; 784 struct sbp_target *target; 785 struct fw_device *fwdev; 786 int i, alive; 787 788 SBP_DEBUG(0) 789 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 790 END_DEBUG 791 if (sbp_cold > 0) 792 sbp_cold --; 793 794 #if 0 795 /* 796 * XXX don't let CAM the bus rest. 797 * CAM tries to do something with freezed (DEV_RETRY) devices. 798 */ 799 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 800 #endif 801 802 /* Gabage Collection */ 803 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 804 target = &sbp->targets[i]; 805 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 806 if (target->fwdev == NULL || target->fwdev == fwdev) 807 break; 808 if (fwdev == NULL) { 809 /* device has removed in lower driver */ 810 sbp_cam_detach_target(target); 811 sbp_free_target(target); 812 } 813 } 814 /* traverse device list */ 815 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 816 SBP_DEBUG(0) 817 printf("sbp_post_explore: EUI:%08x%08x ", 818 fwdev->eui.hi, fwdev->eui.lo); 819 if (fwdev->status != FWDEVATTACHED) 820 printf("not attached, state=%d.\n", fwdev->status); 821 else 822 printf("attached\n"); 823 END_DEBUG 824 alive = SBP_FWDEV_ALIVE(fwdev); 825 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 826 target = &sbp->targets[i]; 827 if(target->fwdev == fwdev ) { 828 /* known target */ 829 break; 830 } 831 } 832 if(i == SBP_NUM_TARGETS){ 833 if (alive) { 834 /* new target */ 835 target = sbp_alloc_target(sbp, fwdev); 836 if (target == NULL) 837 continue; 838 } else { 839 continue; 840 } 841 } 842 sbp_probe_target((void *)target); 843 if (target->num_lun == 0) 844 sbp_free_target(target); 845 } 846 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 847 sbp->sim->flags &= ~SIMQ_FREEZED; 848 } 849 850 #if NEED_RESPONSE 851 static void 852 sbp_loginres_callback(struct fw_xfer *xfer){ 853 int s; 854 struct sbp_dev *sdev; 855 sdev = (struct sbp_dev *)xfer->sc; 856 SBP_DEBUG(1) 857 sbp_show_sdev_info(sdev, 2); 858 printf("sbp_loginres_callback\n"); 859 END_DEBUG 860 /* recycle */ 861 s = splfw(); 862 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 863 splx(s); 864 return; 865 } 866 #endif 867 868 static __inline void 869 sbp_xfer_free(struct fw_xfer *xfer) 870 { 871 struct sbp_dev *sdev; 872 int s; 873 874 sdev = (struct sbp_dev *)xfer->sc; 875 fw_xfer_unload(xfer); 876 s = splfw(); 877 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 878 splx(s); 879 } 880 881 static void 882 sbp_reset_start_callback(struct fw_xfer *xfer) 883 { 884 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 885 struct sbp_target *target = sdev->target; 886 int i; 887 888 if (xfer->resp != 0) { 889 sbp_show_sdev_info(sdev, 2); 890 printf("sbp_reset_start failed: resp=%d\n", xfer->resp); 891 } 892 893 for (i = 0; i < target->num_lun; i++) { 894 tsdev = target->luns[i]; 895 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 896 sbp_login(tsdev); 897 } 898 } 899 900 static void 901 sbp_reset_start(struct sbp_dev *sdev) 902 { 903 struct fw_xfer *xfer; 904 struct fw_pkt *fp; 905 906 SBP_DEBUG(0) 907 sbp_show_sdev_info(sdev, 2); 908 printf("sbp_reset_start\n"); 909 END_DEBUG 910 911 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 912 xfer->act.hand = sbp_reset_start_callback; 913 fp = &xfer->send.hdr; 914 fp->mode.wreqq.dest_hi = 0xffff; 915 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 916 fp->mode.wreqq.data = htonl(0xf); 917 fw_asyreq(xfer->fc, -1, xfer); 918 } 919 920 static void 921 sbp_mgm_callback(struct fw_xfer *xfer) 922 { 923 struct sbp_dev *sdev; 924 int resp; 925 926 sdev = (struct sbp_dev *)xfer->sc; 927 928 SBP_DEBUG(1) 929 sbp_show_sdev_info(sdev, 2); 930 printf("sbp_mgm_callback\n"); 931 END_DEBUG 932 resp = xfer->resp; 933 sbp_xfer_free(xfer); 934 #if 0 935 if (resp != 0) { 936 sbp_show_sdev_info(sdev, 2); 937 printf("management ORB failed(%d) ... RESET_START\n", resp); 938 sbp_reset_start(sdev); 939 } 940 #endif 941 return; 942 } 943 944 static struct sbp_dev * 945 sbp_next_dev(struct sbp_target *target, int lun) 946 { 947 struct sbp_dev **sdevp; 948 int i; 949 950 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 951 i++, sdevp++) 952 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 953 return(*sdevp); 954 return(NULL); 955 } 956 957 #define SCAN_PRI 1 958 static void 959 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 960 { 961 struct sbp_target *target; 962 struct sbp_dev *sdev; 963 964 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 965 target = sdev->target; 966 SBP_DEBUG(0) 967 sbp_show_sdev_info(sdev, 2); 968 printf("sbp_cam_scan_lun\n"); 969 END_DEBUG 970 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 971 sdev->status = SBP_DEV_ATTACHED; 972 } else { 973 sbp_show_sdev_info(sdev, 2); 974 printf("scan failed\n"); 975 } 976 sdev = sbp_next_dev(target, sdev->lun_id + 1); 977 if (sdev == NULL) { 978 free(ccb, M_SBP); 979 return; 980 } 981 /* reuse ccb */ 982 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 983 ccb->ccb_h.ccb_sdev_ptr = sdev; 984 xpt_action(ccb); 985 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 986 sdev->freeze = 1; 987 } 988 989 static void 990 sbp_cam_scan_target(void *arg) 991 { 992 struct sbp_target *target = (struct sbp_target *)arg; 993 struct sbp_dev *sdev; 994 union ccb *ccb; 995 996 sdev = sbp_next_dev(target, 0); 997 if (sdev == NULL) { 998 printf("sbp_cam_scan_target: nothing to do for target%d\n", 999 target->target_id); 1000 return; 1001 } 1002 SBP_DEBUG(0) 1003 sbp_show_sdev_info(sdev, 2); 1004 printf("sbp_cam_scan_target\n"); 1005 END_DEBUG 1006 ccb = malloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO); 1007 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 1008 ccb->ccb_h.func_code = XPT_SCAN_LUN; 1009 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 1010 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1011 ccb->crcn.flags = CAM_FLAG_NONE; 1012 ccb->ccb_h.ccb_sdev_ptr = sdev; 1013 1014 /* The scan is in progress now. */ 1015 xpt_action(ccb); 1016 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1017 sdev->freeze = 1; 1018 } 1019 1020 static __inline void 1021 sbp_scan_dev(struct sbp_dev *sdev) 1022 { 1023 sdev->status = SBP_DEV_PROBE; 1024 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000, 1025 sbp_cam_scan_target, (void *)sdev->target); 1026 } 1027 1028 static void 1029 sbp_do_attach(struct fw_xfer *xfer) 1030 { 1031 struct sbp_dev *sdev; 1032 struct sbp_target *target; 1033 struct sbp_softc *sbp; 1034 1035 sdev = (struct sbp_dev *)xfer->sc; 1036 target = sdev->target; 1037 sbp = target->sbp; 1038 SBP_DEBUG(0) 1039 sbp_show_sdev_info(sdev, 2); 1040 printf("sbp_do_attach\n"); 1041 END_DEBUG 1042 sbp_xfer_free(xfer); 1043 1044 if (sdev->path == NULL) 1045 xpt_create_path(&sdev->path, xpt_periph, 1046 cam_sim_path(target->sbp->sim), 1047 target->target_id, sdev->lun_id); 1048 1049 /* 1050 * Let CAM scan the bus if we are in the boot process. 1051 * XXX xpt_scan_bus cannot detect LUN larger than 0 1052 * if LUN 0 doesn't exists. 1053 */ 1054 if (sbp_cold > 0) { 1055 sdev->status = SBP_DEV_ATTACHED; 1056 return; 1057 } 1058 1059 sbp_scan_dev(sdev); 1060 return; 1061 } 1062 1063 static void 1064 sbp_agent_reset_callback(struct fw_xfer *xfer) 1065 { 1066 struct sbp_dev *sdev; 1067 1068 sdev = (struct sbp_dev *)xfer->sc; 1069 SBP_DEBUG(1) 1070 sbp_show_sdev_info(sdev, 2); 1071 printf("%s\n", __FUNCTION__); 1072 END_DEBUG 1073 if (xfer->resp != 0) { 1074 sbp_show_sdev_info(sdev, 2); 1075 printf("%s: resp=%d\n", __FUNCTION__, xfer->resp); 1076 } 1077 1078 sbp_xfer_free(xfer); 1079 if (sdev->path) { 1080 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1081 sdev->freeze = 0; 1082 } 1083 } 1084 1085 static void 1086 sbp_agent_reset(struct sbp_dev *sdev) 1087 { 1088 struct fw_xfer *xfer; 1089 struct fw_pkt *fp; 1090 1091 SBP_DEBUG(0) 1092 sbp_show_sdev_info(sdev, 2); 1093 printf("sbp_agent_reset\n"); 1094 END_DEBUG 1095 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1096 if (xfer == NULL) 1097 return; 1098 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1099 xfer->act.hand = sbp_agent_reset_callback; 1100 else 1101 xfer->act.hand = sbp_do_attach; 1102 fp = &xfer->send.hdr; 1103 fp->mode.wreqq.data = htonl(0xf); 1104 fw_asyreq(xfer->fc, -1, xfer); 1105 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1106 } 1107 1108 static void 1109 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1110 { 1111 struct sbp_dev *sdev; 1112 1113 sdev = (struct sbp_dev *)xfer->sc; 1114 SBP_DEBUG(1) 1115 sbp_show_sdev_info(sdev, 2); 1116 printf("sbp_busy_timeout_callback\n"); 1117 END_DEBUG 1118 sbp_xfer_free(xfer); 1119 sbp_agent_reset(sdev); 1120 } 1121 1122 static void 1123 sbp_busy_timeout(struct sbp_dev *sdev) 1124 { 1125 struct fw_pkt *fp; 1126 struct fw_xfer *xfer; 1127 SBP_DEBUG(0) 1128 sbp_show_sdev_info(sdev, 2); 1129 printf("sbp_busy_timeout\n"); 1130 END_DEBUG 1131 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1132 1133 xfer->act.hand = sbp_busy_timeout_callback; 1134 fp = &xfer->send.hdr; 1135 fp->mode.wreqq.dest_hi = 0xffff; 1136 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1137 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1138 fw_asyreq(xfer->fc, -1, xfer); 1139 } 1140 1141 static void 1142 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1143 { 1144 struct sbp_dev *sdev; 1145 sdev = (struct sbp_dev *)xfer->sc; 1146 1147 SBP_DEBUG(1) 1148 sbp_show_sdev_info(sdev, 2); 1149 printf("%s\n", __FUNCTION__); 1150 END_DEBUG 1151 if (xfer->resp != 0) { 1152 /* XXX */ 1153 printf("%s: xfer->resp = %d\n", __FUNCTION__, xfer->resp); 1154 } 1155 sbp_xfer_free(xfer); 1156 sdev->flags &= ~ORB_POINTER_ACTIVE; 1157 1158 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1159 struct sbp_ocb *ocb; 1160 1161 sdev->flags &= ~ORB_POINTER_NEED; 1162 ocb = STAILQ_FIRST(&sdev->ocbs); 1163 if (ocb != NULL) 1164 sbp_orb_pointer(sdev, ocb); 1165 } 1166 return; 1167 } 1168 1169 static void 1170 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1171 { 1172 struct fw_xfer *xfer; 1173 struct fw_pkt *fp; 1174 SBP_DEBUG(1) 1175 sbp_show_sdev_info(sdev, 2); 1176 printf("%s: 0x%08x\n", __FUNCTION__, (u_int32_t)ocb->bus_addr); 1177 END_DEBUG 1178 1179 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1180 SBP_DEBUG(0) 1181 printf("%s: orb pointer active\n", __FUNCTION__); 1182 END_DEBUG 1183 sdev->flags |= ORB_POINTER_NEED; 1184 return; 1185 } 1186 1187 sdev->flags |= ORB_POINTER_ACTIVE; 1188 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1189 if (xfer == NULL) 1190 return; 1191 xfer->act.hand = sbp_orb_pointer_callback; 1192 1193 fp = &xfer->send.hdr; 1194 fp->mode.wreqb.len = 8; 1195 fp->mode.wreqb.extcode = 0; 1196 xfer->send.payload[0] = 1197 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1198 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr); 1199 1200 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1201 sbp_xfer_free(xfer); 1202 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1203 xpt_done(ocb->ccb); 1204 } 1205 } 1206 1207 #if 0 1208 static void 1209 sbp_cmd_callback(struct fw_xfer *xfer) 1210 { 1211 SBP_DEBUG(1) 1212 struct sbp_dev *sdev; 1213 sdev = (struct sbp_dev *)xfer->sc; 1214 sbp_show_sdev_info(sdev, 2); 1215 printf("sbp_cmd_callback\n"); 1216 END_DEBUG 1217 if (xfer->resp != 0) { 1218 /* XXX */ 1219 printf("%s: xfer->resp = %d\n", __FUNCTION__, xfer->resp); 1220 } 1221 sbp_xfer_free(xfer); 1222 return; 1223 } 1224 1225 static void 1226 sbp_doorbell(struct sbp_dev *sdev) 1227 { 1228 struct fw_xfer *xfer; 1229 struct fw_pkt *fp; 1230 SBP_DEBUG(1) 1231 sbp_show_sdev_info(sdev, 2); 1232 printf("sbp_doorbell\n"); 1233 END_DEBUG 1234 1235 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1236 if (xfer == NULL) 1237 return; 1238 xfer->act.hand = sbp_cmd_callback; 1239 fp = (struct fw_pkt *)xfer->send.buf; 1240 fp->mode.wreqq.data = htonl(0xf); 1241 fw_asyreq(xfer->fc, -1, xfer); 1242 } 1243 #endif 1244 1245 static struct fw_xfer * 1246 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1247 { 1248 struct fw_xfer *xfer; 1249 struct fw_pkt *fp; 1250 struct sbp_target *target; 1251 int s, new = 0; 1252 1253 target = sdev->target; 1254 s = splfw(); 1255 xfer = STAILQ_FIRST(&target->xferlist); 1256 if (xfer == NULL) { 1257 if (target->n_xfer > 5 /* XXX */) { 1258 printf("sbp: no more xfer for this target\n"); 1259 splx(s); 1260 return(NULL); 1261 } 1262 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1263 if(xfer == NULL){ 1264 printf("sbp: fw_xfer_alloc_buf failed\n"); 1265 splx(s); 1266 return NULL; 1267 } 1268 target->n_xfer ++; 1269 if (debug) 1270 printf("sbp: alloc %d xfer\n", target->n_xfer); 1271 new = 1; 1272 } else { 1273 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1274 } 1275 splx(s); 1276 1277 microtime(&xfer->tv); 1278 1279 if (new) { 1280 xfer->recv.pay_len = 0; 1281 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1282 xfer->fc = sdev->target->sbp->fd.fc; 1283 xfer->retry_req = fw_asybusy; 1284 } 1285 1286 if (tcode == FWTCODE_WREQB) 1287 xfer->send.pay_len = 8; 1288 else 1289 xfer->send.pay_len = 0; 1290 1291 xfer->sc = (caddr_t)sdev; 1292 fp = &xfer->send.hdr; 1293 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1294 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1295 fp->mode.wreqq.tlrt = 0; 1296 fp->mode.wreqq.tcode = tcode; 1297 fp->mode.wreqq.pri = 0; 1298 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1299 1300 return xfer; 1301 1302 } 1303 1304 static void 1305 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1306 { 1307 struct fw_xfer *xfer; 1308 struct fw_pkt *fp; 1309 struct sbp_ocb *ocb; 1310 struct sbp_target *target; 1311 int s, nid; 1312 1313 target = sdev->target; 1314 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1315 1316 s = splfw(); 1317 if (func == ORB_FUN_RUNQUEUE) { 1318 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1319 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1320 splx(s); 1321 return; 1322 } 1323 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1324 goto start; 1325 } 1326 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1327 splx(s); 1328 /* XXX */ 1329 return; 1330 } 1331 ocb->flags = OCB_ACT_MGM; 1332 ocb->sdev = sdev; 1333 1334 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1335 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1336 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1337 1338 SBP_DEBUG(0) 1339 sbp_show_sdev_info(sdev, 2); 1340 printf("%s\n", orb_fun_name[(func>>16)&0xf]); 1341 END_DEBUG 1342 switch (func) { 1343 case ORB_FUN_LGI: 1344 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1345 ocb->orb[2] = htonl(nid << 16); 1346 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1347 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1348 if (ex_login) 1349 ocb->orb[4] |= htonl(ORB_EXV); 1350 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1351 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1352 break; 1353 case ORB_FUN_ATA: 1354 ocb->orb[0] = htonl((0 << 16) | 0); 1355 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1356 /* fall through */ 1357 case ORB_FUN_RCN: 1358 case ORB_FUN_LGO: 1359 case ORB_FUN_LUR: 1360 case ORB_FUN_RST: 1361 case ORB_FUN_ATS: 1362 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1363 break; 1364 } 1365 1366 if (target->mgm_ocb_cur != NULL) { 1367 /* there is a standing ORB */ 1368 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1369 splx(s); 1370 return; 1371 } 1372 start: 1373 target->mgm_ocb_cur = ocb; 1374 splx(s); 1375 1376 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1377 sbp_mgm_timeout, (caddr_t)ocb); 1378 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1379 if(xfer == NULL){ 1380 return; 1381 } 1382 xfer->act.hand = sbp_mgm_callback; 1383 1384 fp = &xfer->send.hdr; 1385 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1386 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1387 fp->mode.wreqb.len = 8; 1388 fp->mode.wreqb.extcode = 0; 1389 xfer->send.payload[0] = htonl(nid << 16); 1390 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1391 SBP_DEBUG(0) 1392 sbp_show_sdev_info(sdev, 2); 1393 printf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr); 1394 END_DEBUG 1395 1396 fw_asyreq(xfer->fc, -1, xfer); 1397 } 1398 1399 static void 1400 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1401 { 1402 struct ccb_scsiio *csio; 1403 1404 csio = &ocb->ccb->csio; 1405 printf("%s:%d:%d XPT_SCSI_IO: " 1406 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1407 ", flags: 0x%02x, " 1408 "%db cmd/%db data/%db sense\n", 1409 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1410 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1411 csio->cdb_io.cdb_bytes[0], 1412 csio->cdb_io.cdb_bytes[1], 1413 csio->cdb_io.cdb_bytes[2], 1414 csio->cdb_io.cdb_bytes[3], 1415 csio->cdb_io.cdb_bytes[4], 1416 csio->cdb_io.cdb_bytes[5], 1417 csio->cdb_io.cdb_bytes[6], 1418 csio->cdb_io.cdb_bytes[7], 1419 csio->cdb_io.cdb_bytes[8], 1420 csio->cdb_io.cdb_bytes[9], 1421 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1422 csio->cdb_len, csio->dxfer_len, 1423 csio->sense_len); 1424 } 1425 1426 static void 1427 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1428 { 1429 struct sbp_cmd_status *sbp_cmd_status; 1430 struct scsi_sense_data *sense; 1431 1432 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1433 sense = &ocb->ccb->csio.sense_data; 1434 1435 SBP_DEBUG(0) 1436 sbp_print_scsi_cmd(ocb); 1437 /* XXX need decode status */ 1438 sbp_show_sdev_info(ocb->sdev, 2); 1439 printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1440 sbp_cmd_status->status, 1441 sbp_cmd_status->sfmt, 1442 sbp_cmd_status->valid, 1443 sbp_cmd_status->s_key, 1444 sbp_cmd_status->s_code, 1445 sbp_cmd_status->s_qlfr, 1446 sbp_status->len 1447 ); 1448 END_DEBUG 1449 1450 switch (sbp_cmd_status->status) { 1451 case SCSI_STATUS_CHECK_COND: 1452 case SCSI_STATUS_BUSY: 1453 case SCSI_STATUS_CMD_TERMINATED: 1454 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1455 sense->error_code = SSD_CURRENT_ERROR; 1456 }else{ 1457 sense->error_code = SSD_DEFERRED_ERROR; 1458 } 1459 if(sbp_cmd_status->valid) 1460 sense->error_code |= SSD_ERRCODE_VALID; 1461 sense->flags = sbp_cmd_status->s_key; 1462 if(sbp_cmd_status->mark) 1463 sense->flags |= SSD_FILEMARK; 1464 if(sbp_cmd_status->eom) 1465 sense->flags |= SSD_EOM; 1466 if(sbp_cmd_status->ill_len) 1467 sense->flags |= SSD_ILI; 1468 1469 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1470 1471 if (sbp_status->len <= 1) 1472 /* XXX not scsi status. shouldn't be happened */ 1473 sense->extra_len = 0; 1474 else if (sbp_status->len <= 4) 1475 /* add_sense_code(_qual), info, cmd_spec_info */ 1476 sense->extra_len = 6; 1477 else 1478 /* fru, sense_key_spec */ 1479 sense->extra_len = 10; 1480 1481 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1482 1483 sense->add_sense_code = sbp_cmd_status->s_code; 1484 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1485 sense->fru = sbp_cmd_status->fru; 1486 1487 bcopy(&sbp_cmd_status->s_keydep[0], 1488 &sense->sense_key_spec[0], 3); 1489 1490 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;; 1491 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1492 | CAM_AUTOSNS_VALID; 1493 /* 1494 { 1495 u_int8_t j, *tmp; 1496 tmp = sense; 1497 for( j = 0 ; j < 32 ; j+=8){ 1498 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1499 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1500 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1501 } 1502 1503 } 1504 */ 1505 break; 1506 default: 1507 sbp_show_sdev_info(ocb->sdev, 2); 1508 printf("sbp_scsi_status: unknown scsi status 0x%x\n", 1509 sbp_cmd_status->status); 1510 } 1511 } 1512 1513 static void 1514 sbp_fix_inq_data(struct sbp_ocb *ocb) 1515 { 1516 union ccb *ccb; 1517 struct sbp_dev *sdev; 1518 struct scsi_inquiry_data *inq; 1519 1520 ccb = ocb->ccb; 1521 sdev = ocb->sdev; 1522 1523 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1524 return; 1525 SBP_DEBUG(1) 1526 sbp_show_sdev_info(sdev, 2); 1527 printf("sbp_fix_inq_data\n"); 1528 END_DEBUG 1529 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1530 switch (SID_TYPE(inq)) { 1531 case T_DIRECT: 1532 #if 0 1533 /* 1534 * XXX Convert Direct Access device to RBC. 1535 * I've never seen FireWire DA devices which support READ_6. 1536 */ 1537 if (SID_TYPE(inq) == T_DIRECT) 1538 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1539 #endif 1540 /* fall through */ 1541 case T_RBC: 1542 /* enable tagged queuing */ 1543 if (sbp_tags) 1544 inq->flags |= SID_CmdQue; 1545 else 1546 inq->flags &= ~SID_CmdQue; 1547 /* 1548 * Override vendor/product/revision information. 1549 * Some devices sometimes return strange strings. 1550 */ 1551 #if 1 1552 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1553 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1554 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1555 #endif 1556 break; 1557 } 1558 } 1559 1560 static void 1561 sbp_recv1(struct fw_xfer *xfer) 1562 { 1563 struct fw_pkt *rfp; 1564 #if NEED_RESPONSE 1565 struct fw_pkt *sfp; 1566 #endif 1567 struct sbp_softc *sbp; 1568 struct sbp_dev *sdev; 1569 struct sbp_ocb *ocb; 1570 struct sbp_login_res *login_res = NULL; 1571 struct sbp_status *sbp_status; 1572 struct sbp_target *target; 1573 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1574 u_int32_t addr; 1575 /* 1576 u_int32_t *ld; 1577 ld = xfer->recv.buf; 1578 printf("sbp %x %d %d %08x %08x %08x %08x\n", 1579 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1580 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1581 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1582 */ 1583 sbp = (struct sbp_softc *)xfer->sc; 1584 if (xfer->resp != 0){ 1585 printf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1586 goto done0; 1587 } 1588 if (xfer->recv.payload == NULL){ 1589 printf("sbp_recv: xfer->recv.payload == NULL\n"); 1590 goto done0; 1591 } 1592 rfp = &xfer->recv.hdr; 1593 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1594 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1595 goto done0; 1596 } 1597 sbp_status = (struct sbp_status *)xfer->recv.payload; 1598 addr = rfp->mode.wreqb.dest_lo; 1599 SBP_DEBUG(2) 1600 printf("received address 0x%x\n", addr); 1601 END_DEBUG 1602 t = SBP_ADDR2TRG(addr); 1603 if (t >= SBP_NUM_TARGETS) { 1604 device_printf(sbp->fd.dev, 1605 "sbp_recv1: invalid target %d\n", t); 1606 goto done0; 1607 } 1608 target = &sbp->targets[t]; 1609 l = SBP_ADDR2LUN(addr); 1610 if (l >= target->num_lun || target->luns[l] == NULL) { 1611 device_printf(sbp->fd.dev, 1612 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1613 goto done0; 1614 } 1615 sdev = target->luns[l]; 1616 1617 ocb = NULL; 1618 switch (sbp_status->src) { 1619 case 0: 1620 case 1: 1621 /* check mgm_ocb_cur first */ 1622 ocb = target->mgm_ocb_cur; 1623 if (ocb != NULL) { 1624 if (OCB_MATCH(ocb, sbp_status)) { 1625 callout_stop(&target->mgm_ocb_timeout); 1626 target->mgm_ocb_cur = NULL; 1627 break; 1628 } 1629 } 1630 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1631 if (ocb == NULL) { 1632 sbp_show_sdev_info(sdev, 2); 1633 printf("No ocb(%x) on the queue\n", 1634 ntohl(sbp_status->orb_lo)); 1635 } 1636 break; 1637 case 2: 1638 /* unsolicit */ 1639 sbp_show_sdev_info(sdev, 2); 1640 printf("unsolicit status received\n"); 1641 break; 1642 default: 1643 sbp_show_sdev_info(sdev, 2); 1644 printf("unknown sbp_status->src\n"); 1645 } 1646 1647 status_valid0 = (sbp_status->src < 2 1648 && sbp_status->resp == ORB_RES_CMPL 1649 && sbp_status->dead == 0); 1650 status_valid = (status_valid0 && sbp_status->status == 0); 1651 1652 if (!status_valid0 || debug > 2){ 1653 int status; 1654 SBP_DEBUG(0) 1655 sbp_show_sdev_info(sdev, 2); 1656 printf("ORB status src:%x resp:%x dead:%x" 1657 " len:%x stat:%x orb:%x%08x\n", 1658 sbp_status->src, sbp_status->resp, sbp_status->dead, 1659 sbp_status->len, sbp_status->status, 1660 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1661 END_DEBUG 1662 sbp_show_sdev_info(sdev, 2); 1663 status = sbp_status->status; 1664 switch(sbp_status->resp) { 1665 case 0: 1666 if (status > MAX_ORB_STATUS0) 1667 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1668 else 1669 printf("%s\n", orb_status0[status]); 1670 break; 1671 case 1: 1672 printf("Obj: %s, Error: %s\n", 1673 orb_status1_object[(status>>6) & 3], 1674 orb_status1_serial_bus_error[status & 0xf]); 1675 break; 1676 case 2: 1677 printf("Illegal request\n"); 1678 break; 1679 case 3: 1680 printf("Vendor dependent\n"); 1681 break; 1682 default: 1683 printf("unknown respose code %d\n", sbp_status->resp); 1684 } 1685 } 1686 1687 /* we have to reset the fetch agent if it's dead */ 1688 if (sbp_status->dead) { 1689 if (sdev->path) { 1690 xpt_freeze_devq(sdev->path, 1); 1691 sdev->freeze ++; 1692 } 1693 reset_agent = 1; 1694 } 1695 1696 if (ocb == NULL) 1697 goto done; 1698 1699 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1700 case ORB_FMT_NOP: 1701 break; 1702 case ORB_FMT_VED: 1703 break; 1704 case ORB_FMT_STD: 1705 switch(ocb->flags) { 1706 case OCB_ACT_MGM: 1707 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1708 reset_agent = 0; 1709 switch(orb_fun) { 1710 case ORB_FUN_LGI: 1711 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1712 login_res = sdev->login; 1713 login_res->len = ntohs(login_res->len); 1714 login_res->id = ntohs(login_res->id); 1715 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1716 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1717 if (status_valid) { 1718 SBP_DEBUG(0) 1719 sbp_show_sdev_info(sdev, 2); 1720 printf("login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold)); 1721 END_DEBUG 1722 sbp_busy_timeout(sdev); 1723 } else { 1724 /* forgot logout? */ 1725 sbp_show_sdev_info(sdev, 2); 1726 printf("login failed\n"); 1727 sdev->status = SBP_DEV_RESET; 1728 } 1729 break; 1730 case ORB_FUN_RCN: 1731 login_res = sdev->login; 1732 if (status_valid) { 1733 SBP_DEBUG(0) 1734 sbp_show_sdev_info(sdev, 2); 1735 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); 1736 END_DEBUG 1737 #if 1 1738 if (sdev->status == SBP_DEV_ATTACHED) 1739 sbp_scan_dev(sdev); 1740 else 1741 sbp_agent_reset(sdev); 1742 #else 1743 sdev->status = SBP_DEV_ATTACHED; 1744 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL); 1745 #endif 1746 } else { 1747 /* reconnection hold time exceed? */ 1748 SBP_DEBUG(0) 1749 sbp_show_sdev_info(sdev, 2); 1750 printf("reconnect failed\n"); 1751 END_DEBUG 1752 sbp_login(sdev); 1753 } 1754 break; 1755 case ORB_FUN_LGO: 1756 sdev->status = SBP_DEV_RESET; 1757 break; 1758 case ORB_FUN_RST: 1759 sbp_busy_timeout(sdev); 1760 break; 1761 case ORB_FUN_LUR: 1762 case ORB_FUN_ATA: 1763 case ORB_FUN_ATS: 1764 sbp_agent_reset(sdev); 1765 break; 1766 default: 1767 sbp_show_sdev_info(sdev, 2); 1768 printf("unknown function %d\n", orb_fun); 1769 break; 1770 } 1771 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1772 break; 1773 case OCB_ACT_CMD: 1774 sdev->timeout = 0; 1775 if(ocb->ccb != NULL){ 1776 union ccb *ccb; 1777 /* 1778 u_int32_t *ld; 1779 ld = ocb->ccb->csio.data_ptr; 1780 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) 1781 printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); 1782 else 1783 printf("ptr NULL\n"); 1784 printf("len %d\n", sbp_status->len); 1785 */ 1786 ccb = ocb->ccb; 1787 if(sbp_status->len > 1){ 1788 sbp_scsi_status(sbp_status, ocb); 1789 }else{ 1790 if(sbp_status->resp != ORB_RES_CMPL){ 1791 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1792 }else{ 1793 ccb->ccb_h.status = CAM_REQ_CMP; 1794 } 1795 } 1796 /* fix up inq data */ 1797 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1798 sbp_fix_inq_data(ocb); 1799 xpt_done(ccb); 1800 } 1801 break; 1802 default: 1803 break; 1804 } 1805 } 1806 1807 sbp_free_ocb(sdev, ocb); 1808 done: 1809 if (reset_agent) 1810 sbp_agent_reset(sdev); 1811 1812 done0: 1813 xfer->recv.pay_len = SBP_RECV_LEN; 1814 /* The received packet is usually small enough to be stored within 1815 * the buffer. In that case, the controller return ack_complete and 1816 * no respose is necessary. 1817 * 1818 * XXX fwohci.c and firewire.c should inform event_code such as 1819 * ack_complete or ack_pending to upper driver. 1820 */ 1821 #if NEED_RESPONSE 1822 xfer->send.off = 0; 1823 sfp = (struct fw_pkt *)xfer->send.buf; 1824 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1825 xfer->dst = sfp->mode.wres.dst; 1826 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1827 xfer->act.hand = sbp_loginres_callback; 1828 xfer->retry_req = fw_asybusy; 1829 1830 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1831 sfp->mode.wres.tcode = FWTCODE_WRES; 1832 sfp->mode.wres.rtcode = 0; 1833 sfp->mode.wres.pri = 0; 1834 1835 fw_asyreq(xfer->fc, -1, xfer); 1836 #else 1837 /* recycle */ 1838 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1839 #endif 1840 1841 return; 1842 1843 } 1844 1845 static void 1846 sbp_recv(struct fw_xfer *xfer) 1847 { 1848 int s; 1849 1850 s = splcam(); 1851 sbp_recv1(xfer); 1852 splx(s); 1853 } 1854 /* 1855 * sbp_attach() 1856 */ 1857 static int 1858 sbp_attach(device_t dev) 1859 { 1860 struct sbp_softc *sbp; 1861 struct cam_devq *devq; 1862 struct fw_xfer *xfer; 1863 int i, s, error; 1864 1865 SBP_DEBUG(0) 1866 printf("sbp_attach (cold=%d)\n", cold); 1867 END_DEBUG 1868 1869 if (cold) 1870 sbp_cold ++; 1871 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1872 bzero(sbp, sizeof(struct sbp_softc)); 1873 sbp->fd.dev = dev; 1874 sbp->fd.fc = device_get_ivars(dev); 1875 1876 if (max_speed < 0) 1877 max_speed = sbp->fd.fc->speed; 1878 1879 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat, 1880 /* XXX shoud be 4 for sane backend? */ 1881 /*alignment*/1, 1882 /*boundary*/0, 1883 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1884 /*highaddr*/BUS_SPACE_MAXADDR, 1885 /*filter*/NULL, /*filterarg*/NULL, 1886 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1887 /*maxsegsz*/SBP_SEG_MAX, 1888 /*flags*/BUS_DMA_ALLOCNOW, 1889 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 1890 /*lockfunc*/busdma_lock_mutex, 1891 /*lockarg*/&Giant, 1892 #endif 1893 &sbp->dmat); 1894 if (error != 0) { 1895 printf("sbp_attach: Could not allocate DMA tag " 1896 "- error %d\n", error); 1897 return (ENOMEM); 1898 } 1899 1900 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1901 if (devq == NULL) 1902 return (ENXIO); 1903 1904 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 1905 sbp->targets[i].fwdev = NULL; 1906 sbp->targets[i].luns = NULL; 1907 } 1908 1909 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1910 device_get_unit(dev), 1911 /*untagged*/ 1, 1912 /*tagged*/ SBP_QUEUE_LEN - 1, 1913 devq); 1914 cam_simq_release(devq); 1915 if (sbp->sim == NULL) 1916 return (ENXIO); 1917 1918 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS) 1919 goto fail; 1920 1921 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 1922 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1923 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1924 goto fail; 1925 } 1926 1927 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1928 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1929 sbp->fwb.end = sbp->fwb.start + 0xffff; 1930 sbp->fwb.act_type = FWACT_XFER; 1931 /* pre-allocate xfer */ 1932 STAILQ_INIT(&sbp->fwb.xferlist); 1933 for (i = 0; i < SBP_NUM_OCB/2; i ++) { 1934 xfer = fw_xfer_alloc_buf(M_SBP, 1935 /* send */0, 1936 /* recv */SBP_RECV_LEN); 1937 xfer->act.hand = sbp_recv; 1938 #if NEED_RESPONSE 1939 xfer->fc = sbp->fd.fc; 1940 #endif 1941 xfer->sc = (caddr_t)sbp; 1942 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1943 } 1944 fw_bindadd(sbp->fd.fc, &sbp->fwb); 1945 1946 sbp->fd.post_busreset = sbp_post_busreset; 1947 sbp->fd.post_explore = sbp_post_explore; 1948 1949 if (sbp->fd.fc->status != -1) { 1950 s = splfw(); 1951 sbp_post_busreset((void *)sbp); 1952 sbp_post_explore((void *)sbp); 1953 splx(s); 1954 } 1955 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 1956 1957 return (0); 1958 fail: 1959 cam_sim_free(sbp->sim); 1960 return (ENXIO); 1961 } 1962 1963 static int 1964 sbp_logout_all(struct sbp_softc *sbp) 1965 { 1966 struct sbp_target *target; 1967 struct sbp_dev *sdev; 1968 int i, j; 1969 1970 SBP_DEBUG(0) 1971 printf("sbp_logout_all\n"); 1972 END_DEBUG 1973 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 1974 target = &sbp->targets[i]; 1975 if (target->luns == NULL) 1976 continue; 1977 for (j = 0; j < target->num_lun; j++) { 1978 sdev = target->luns[j]; 1979 if (sdev == NULL) 1980 continue; 1981 callout_stop(&sdev->login_callout); 1982 if (sdev->status >= SBP_DEV_TOATTACH && 1983 sdev->status <= SBP_DEV_ATTACHED) 1984 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 1985 } 1986 } 1987 1988 return 0; 1989 } 1990 1991 static int 1992 sbp_shutdown(device_t dev) 1993 { 1994 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 1995 1996 sbp_logout_all(sbp); 1997 return (0); 1998 } 1999 2000 static void 2001 sbp_free_sdev(struct sbp_dev *sdev) 2002 { 2003 int i; 2004 2005 if (sdev == NULL) 2006 return; 2007 for (i = 0; i < SBP_QUEUE_LEN; i++) 2008 bus_dmamap_destroy(sdev->target->sbp->dmat, 2009 sdev->ocb[i].dmamap); 2010 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 2011 free(sdev, M_SBP); 2012 } 2013 2014 static void 2015 sbp_free_target(struct sbp_target *target) 2016 { 2017 struct sbp_softc *sbp; 2018 struct fw_xfer *xfer, *next; 2019 int i; 2020 2021 if (target->luns == NULL) 2022 return; 2023 callout_stop(&target->mgm_ocb_timeout); 2024 sbp = target->sbp; 2025 for (i = 0; i < target->num_lun; i++) 2026 sbp_free_sdev(target->luns[i]); 2027 2028 for (xfer = STAILQ_FIRST(&target->xferlist); 2029 xfer != NULL; xfer = next) { 2030 next = STAILQ_NEXT(xfer, link); 2031 fw_xfer_free_buf(xfer); 2032 } 2033 STAILQ_INIT(&target->xferlist); 2034 free(target->luns, M_SBP); 2035 target->num_lun = 0;; 2036 target->luns = NULL; 2037 target->fwdev = NULL; 2038 } 2039 2040 static int 2041 sbp_detach(device_t dev) 2042 { 2043 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2044 struct firewire_comm *fc = sbp->fd.fc; 2045 struct fw_xfer *xfer, *next; 2046 int i; 2047 2048 SBP_DEBUG(0) 2049 printf("sbp_detach\n"); 2050 END_DEBUG 2051 2052 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2053 sbp_cam_detach_target(&sbp->targets[i]); 2054 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2055 xpt_free_path(sbp->path); 2056 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2057 cam_sim_free(sbp->sim); 2058 2059 sbp_logout_all(sbp); 2060 2061 /* XXX wait for logout completion */ 2062 tsleep(&i, FWPRI, "sbpdtc", hz/2); 2063 2064 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2065 sbp_free_target(&sbp->targets[i]); 2066 2067 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist); 2068 xfer != NULL; xfer = next) { 2069 next = STAILQ_NEXT(xfer, link); 2070 fw_xfer_free_buf(xfer); 2071 } 2072 STAILQ_INIT(&sbp->fwb.xferlist); 2073 fw_bindremove(fc, &sbp->fwb); 2074 2075 bus_dma_tag_destroy(sbp->dmat); 2076 2077 return (0); 2078 } 2079 2080 static void 2081 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2082 { 2083 if (sdev == NULL) 2084 return; 2085 if (sdev->status == SBP_DEV_DEAD) 2086 return; 2087 if (sdev->status == SBP_DEV_RESET) 2088 return; 2089 if (sdev->path) { 2090 xpt_release_devq(sdev->path, 2091 sdev->freeze, TRUE); 2092 sdev->freeze = 0; 2093 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2094 xpt_free_path(sdev->path); 2095 sdev->path = NULL; 2096 } 2097 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2098 } 2099 2100 static void 2101 sbp_cam_detach_target(struct sbp_target *target) 2102 { 2103 int i; 2104 2105 if (target->luns != NULL) { 2106 SBP_DEBUG(0) 2107 printf("sbp_detach_target %d\n", target->target_id); 2108 END_DEBUG 2109 callout_stop(&target->scan_callout); 2110 for (i = 0; i < target->num_lun; i++) 2111 sbp_cam_detach_sdev(target->luns[i]); 2112 } 2113 } 2114 2115 static void 2116 sbp_target_reset(struct sbp_dev *sdev, int method) 2117 { 2118 int i; 2119 struct sbp_target *target = sdev->target; 2120 struct sbp_dev *tsdev; 2121 2122 for (i = 0; i < target->num_lun; i++) { 2123 tsdev = target->luns[i]; 2124 if (tsdev == NULL) 2125 continue; 2126 if (tsdev->status == SBP_DEV_DEAD) 2127 continue; 2128 if (tsdev->status == SBP_DEV_RESET) 2129 continue; 2130 xpt_freeze_devq(tsdev->path, 1); 2131 tsdev->freeze ++; 2132 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2133 if (method == 2) 2134 tsdev->status = SBP_DEV_LOGIN; 2135 } 2136 switch(method) { 2137 case 1: 2138 printf("target reset\n"); 2139 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2140 break; 2141 case 2: 2142 printf("reset start\n"); 2143 sbp_reset_start(sdev); 2144 break; 2145 } 2146 2147 } 2148 2149 static void 2150 sbp_mgm_timeout(void *arg) 2151 { 2152 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2153 struct sbp_dev *sdev = ocb->sdev; 2154 struct sbp_target *target = sdev->target; 2155 2156 sbp_show_sdev_info(sdev, 2); 2157 printf("request timeout(mgm orb:0x%08x) ... ", 2158 (u_int32_t)ocb->bus_addr); 2159 target->mgm_ocb_cur = NULL; 2160 sbp_free_ocb(sdev, ocb); 2161 #if 0 2162 /* XXX */ 2163 printf("run next request\n"); 2164 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2165 #endif 2166 #if 1 2167 printf("reset start\n"); 2168 sbp_reset_start(sdev); 2169 #endif 2170 } 2171 2172 static void 2173 sbp_timeout(void *arg) 2174 { 2175 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2176 struct sbp_dev *sdev = ocb->sdev; 2177 2178 sbp_show_sdev_info(sdev, 2); 2179 printf("request timeout(cmd orb:0x%08x) ... ", 2180 (u_int32_t)ocb->bus_addr); 2181 2182 sdev->timeout ++; 2183 switch(sdev->timeout) { 2184 case 1: 2185 printf("agent reset\n"); 2186 xpt_freeze_devq(sdev->path, 1); 2187 sdev->freeze ++; 2188 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2189 sbp_agent_reset(sdev); 2190 break; 2191 case 2: 2192 case 3: 2193 sbp_target_reset(sdev, sdev->timeout - 1); 2194 break; 2195 #if 0 2196 default: 2197 /* XXX give up */ 2198 sbp_cam_detach_target(target); 2199 if (target->luns != NULL) 2200 free(target->luns, M_SBP); 2201 target->num_lun = 0;; 2202 target->luns = NULL; 2203 target->fwdev = NULL; 2204 #endif 2205 } 2206 } 2207 2208 static void 2209 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2210 { 2211 2212 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2213 struct sbp_target *target = NULL; 2214 struct sbp_dev *sdev = NULL; 2215 2216 /* target:lun -> sdev mapping */ 2217 if (sbp != NULL 2218 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2219 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2220 target = &sbp->targets[ccb->ccb_h.target_id]; 2221 if (target->fwdev != NULL 2222 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2223 && ccb->ccb_h.target_lun < target->num_lun) { 2224 sdev = target->luns[ccb->ccb_h.target_lun]; 2225 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2226 sdev->status != SBP_DEV_PROBE) 2227 sdev = NULL; 2228 } 2229 } 2230 2231 SBP_DEBUG(1) 2232 if (sdev == NULL) 2233 printf("invalid target %d lun %d\n", 2234 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2235 END_DEBUG 2236 2237 switch (ccb->ccb_h.func_code) { 2238 case XPT_SCSI_IO: 2239 case XPT_RESET_DEV: 2240 case XPT_GET_TRAN_SETTINGS: 2241 case XPT_SET_TRAN_SETTINGS: 2242 case XPT_CALC_GEOMETRY: 2243 if (sdev == NULL) { 2244 SBP_DEBUG(1) 2245 printf("%s:%d:%d:func_code 0x%04x: " 2246 "Invalid target (target needed)\n", 2247 device_get_nameunit(sbp->fd.dev), 2248 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2249 ccb->ccb_h.func_code); 2250 END_DEBUG 2251 2252 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2253 xpt_done(ccb); 2254 return; 2255 } 2256 break; 2257 case XPT_PATH_INQ: 2258 case XPT_NOOP: 2259 /* The opcodes sometimes aimed at a target (sc is valid), 2260 * sometimes aimed at the SIM (sc is invalid and target is 2261 * CAM_TARGET_WILDCARD) 2262 */ 2263 if (sbp == NULL && 2264 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2265 SBP_DEBUG(0) 2266 printf("%s:%d:%d func_code 0x%04x: " 2267 "Invalid target (no wildcard)\n", 2268 device_get_nameunit(sbp->fd.dev), 2269 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2270 ccb->ccb_h.func_code); 2271 END_DEBUG 2272 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2273 xpt_done(ccb); 2274 return; 2275 } 2276 break; 2277 default: 2278 /* XXX Hm, we should check the input parameters */ 2279 break; 2280 } 2281 2282 switch (ccb->ccb_h.func_code) { 2283 case XPT_SCSI_IO: 2284 { 2285 struct ccb_scsiio *csio; 2286 struct sbp_ocb *ocb; 2287 int speed; 2288 void *cdb; 2289 2290 csio = &ccb->csio; 2291 2292 SBP_DEBUG(2) 2293 printf("%s:%d:%d XPT_SCSI_IO: " 2294 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2295 ", flags: 0x%02x, " 2296 "%db cmd/%db data/%db sense\n", 2297 device_get_nameunit(sbp->fd.dev), 2298 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2299 csio->cdb_io.cdb_bytes[0], 2300 csio->cdb_io.cdb_bytes[1], 2301 csio->cdb_io.cdb_bytes[2], 2302 csio->cdb_io.cdb_bytes[3], 2303 csio->cdb_io.cdb_bytes[4], 2304 csio->cdb_io.cdb_bytes[5], 2305 csio->cdb_io.cdb_bytes[6], 2306 csio->cdb_io.cdb_bytes[7], 2307 csio->cdb_io.cdb_bytes[8], 2308 csio->cdb_io.cdb_bytes[9], 2309 ccb->ccb_h.flags & CAM_DIR_MASK, 2310 csio->cdb_len, csio->dxfer_len, 2311 csio->sense_len); 2312 END_DEBUG 2313 if(sdev == NULL){ 2314 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2315 xpt_done(ccb); 2316 return; 2317 } 2318 #if 0 2319 /* if we are in probe stage, pass only probe commands */ 2320 if (sdev->status == SBP_DEV_PROBE) { 2321 char *name; 2322 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2323 printf("probe stage, periph name: %s\n", name); 2324 if (strcmp(name, "probe") != 0) { 2325 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2326 xpt_done(ccb); 2327 return; 2328 } 2329 } 2330 #endif 2331 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2332 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2333 xpt_done(ccb); 2334 return; 2335 } 2336 2337 ocb->flags = OCB_ACT_CMD; 2338 ocb->sdev = sdev; 2339 ocb->ccb = ccb; 2340 ccb->ccb_h.ccb_sdev_ptr = sdev; 2341 ocb->orb[0] = htonl(1 << 31); 2342 ocb->orb[1] = 0; 2343 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2344 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2345 speed = min(target->fwdev->speed, max_speed); 2346 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2347 | ORB_CMD_MAXP(speed + 7)); 2348 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2349 ocb->orb[4] |= htonl(ORB_CMD_IN); 2350 } 2351 2352 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2353 printf("sbp: CAM_SCATTER_VALID\n"); 2354 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2355 printf("sbp: CAM_DATA_PHYS\n"); 2356 2357 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2358 cdb = (void *)csio->cdb_io.cdb_ptr; 2359 else 2360 cdb = (void *)&csio->cdb_io.cdb_bytes; 2361 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2362 /* 2363 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2364 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2365 */ 2366 if (ccb->csio.dxfer_len > 0) { 2367 int s, error; 2368 2369 s = splsoftvm(); 2370 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2371 /*dma map*/ocb->dmamap, 2372 ccb->csio.data_ptr, 2373 ccb->csio.dxfer_len, 2374 sbp_execute_ocb, 2375 ocb, 2376 /*flags*/0); 2377 splx(s); 2378 if (error) 2379 printf("sbp: bus_dmamap_load error %d\n", error); 2380 } else 2381 sbp_execute_ocb(ocb, NULL, 0, 0); 2382 break; 2383 } 2384 case XPT_CALC_GEOMETRY: 2385 { 2386 struct ccb_calc_geometry *ccg; 2387 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2388 u_int32_t size_mb; 2389 u_int32_t secs_per_cylinder; 2390 int extended = 1; 2391 #endif 2392 2393 ccg = &ccb->ccg; 2394 if (ccg->block_size == 0) { 2395 printf("sbp_action1: block_size is 0.\n"); 2396 ccb->ccb_h.status = CAM_REQ_INVALID; 2397 xpt_done(ccb); 2398 break; 2399 } 2400 SBP_DEBUG(1) 2401 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2402 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2403 "Volume size = %d\n", 2404 #else 2405 "Volume size = %jd\n", 2406 #endif 2407 device_get_nameunit(sbp->fd.dev), 2408 cam_sim_path(sbp->sim), 2409 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2410 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2411 (uintmax_t) 2412 #endif 2413 ccg->volume_size); 2414 END_DEBUG 2415 2416 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2417 size_mb = ccg->volume_size 2418 / ((1024L * 1024L) / ccg->block_size); 2419 2420 if (size_mb > 1024 && extended) { 2421 ccg->heads = 255; 2422 ccg->secs_per_track = 63; 2423 } else { 2424 ccg->heads = 64; 2425 ccg->secs_per_track = 32; 2426 } 2427 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2428 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2429 ccb->ccb_h.status = CAM_REQ_CMP; 2430 #else 2431 cam_calc_geometry(ccg, /*extended*/1); 2432 #endif 2433 xpt_done(ccb); 2434 break; 2435 } 2436 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2437 { 2438 2439 SBP_DEBUG(1) 2440 printf("%s:%d:XPT_RESET_BUS: \n", 2441 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2442 END_DEBUG 2443 2444 ccb->ccb_h.status = CAM_REQ_INVALID; 2445 xpt_done(ccb); 2446 break; 2447 } 2448 case XPT_PATH_INQ: /* Path routing inquiry */ 2449 { 2450 struct ccb_pathinq *cpi = &ccb->cpi; 2451 2452 SBP_DEBUG(1) 2453 printf("%s:%d:%d XPT_PATH_INQ:.\n", 2454 device_get_nameunit(sbp->fd.dev), 2455 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2456 END_DEBUG 2457 cpi->version_num = 1; /* XXX??? */ 2458 cpi->hba_inquiry = PI_TAG_ABLE; 2459 cpi->target_sprt = 0; 2460 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2461 cpi->hba_eng_cnt = 0; 2462 cpi->max_target = SBP_NUM_TARGETS - 1; 2463 cpi->max_lun = SBP_NUM_LUNS - 1; 2464 cpi->initiator_id = SBP_INITIATOR; 2465 cpi->bus_id = sim->bus_id; 2466 cpi->base_transfer_speed = 400 * 1000 / 8; 2467 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2468 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2469 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2470 cpi->unit_number = sim->unit_number; 2471 2472 cpi->ccb_h.status = CAM_REQ_CMP; 2473 xpt_done(ccb); 2474 break; 2475 } 2476 case XPT_GET_TRAN_SETTINGS: 2477 { 2478 struct ccb_trans_settings *cts = &ccb->cts; 2479 SBP_DEBUG(1) 2480 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2481 device_get_nameunit(sbp->fd.dev), 2482 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2483 END_DEBUG 2484 /* Enable disconnect and tagged queuing */ 2485 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID; 2486 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB; 2487 2488 cts->ccb_h.status = CAM_REQ_CMP; 2489 xpt_done(ccb); 2490 break; 2491 } 2492 case XPT_ABORT: 2493 ccb->ccb_h.status = CAM_UA_ABORT; 2494 xpt_done(ccb); 2495 break; 2496 case XPT_SET_TRAN_SETTINGS: 2497 /* XXX */ 2498 default: 2499 ccb->ccb_h.status = CAM_REQ_INVALID; 2500 xpt_done(ccb); 2501 break; 2502 } 2503 return; 2504 } 2505 2506 static void 2507 sbp_action(struct cam_sim *sim, union ccb *ccb) 2508 { 2509 int s; 2510 2511 s = splfw(); 2512 sbp_action1(sim, ccb); 2513 splx(s); 2514 } 2515 2516 static void 2517 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2518 { 2519 int i; 2520 struct sbp_ocb *ocb; 2521 struct sbp_ocb *prev; 2522 bus_dma_segment_t *s; 2523 2524 if (error) 2525 printf("sbp_execute_ocb: error=%d\n", error); 2526 2527 ocb = (struct sbp_ocb *)arg; 2528 2529 SBP_DEBUG(2) 2530 printf("sbp_execute_ocb: seg %d", seg); 2531 for (i = 0; i < seg; i++) 2532 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2533 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); 2534 #else 2535 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2536 (uintmax_t)segments[i].ds_len); 2537 #endif 2538 printf("\n"); 2539 END_DEBUG 2540 2541 if (seg == 1) { 2542 /* direct pointer */ 2543 s = &segments[0]; 2544 if (s->ds_len > SBP_SEG_MAX) 2545 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2546 ocb->orb[3] = htonl(s->ds_addr); 2547 ocb->orb[4] |= htonl(s->ds_len); 2548 } else if(seg > 1) { 2549 /* page table */ 2550 for (i = 0; i < seg; i++) { 2551 s = &segments[i]; 2552 SBP_DEBUG(0) 2553 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2554 if (s->ds_len < 16) 2555 printf("sbp_execute_ocb: warning, " 2556 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2557 "segment length(%d) is less than 16." 2558 #else 2559 "segment length(%zd) is less than 16." 2560 #endif 2561 "(seg=%d/%d)\n", s->ds_len, i+1, seg); 2562 END_DEBUG 2563 if (s->ds_len > SBP_SEG_MAX) 2564 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2565 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2566 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2567 } 2568 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2569 } 2570 2571 if (seg > 0) 2572 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2573 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2574 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2575 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2576 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2577 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2578 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2579 sbp_orb_pointer(ocb->sdev, ocb); 2580 } 2581 } 2582 2583 static void 2584 sbp_poll(struct cam_sim *sim) 2585 { 2586 struct sbp_softc *sbp; 2587 struct firewire_comm *fc; 2588 2589 sbp = (struct sbp_softc *)sim->softc; 2590 fc = sbp->fd.fc; 2591 2592 fc->poll(fc, 0, -1); 2593 2594 return; 2595 } 2596 2597 static struct sbp_ocb * 2598 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2599 { 2600 struct sbp_ocb *ocb; 2601 struct sbp_ocb *next; 2602 int s = splfw(), order = 0; 2603 int flags; 2604 2605 SBP_DEBUG(1) 2606 sbp_show_sdev_info(sdev, 2); 2607 printf("%s: 0x%08x src %d\n", 2608 __FUNCTION__, ntohl(sbp_status->orb_lo), sbp_status->src); 2609 END_DEBUG 2610 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2611 next = STAILQ_NEXT(ocb, ocb); 2612 flags = ocb->flags; 2613 if (OCB_MATCH(ocb, sbp_status)) { 2614 /* found */ 2615 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2616 if (ocb->ccb != NULL) 2617 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2618 if (ntohl(ocb->orb[4]) & 0xffff) { 2619 bus_dmamap_sync(sdev->target->sbp->dmat, 2620 ocb->dmamap, 2621 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2622 BUS_DMASYNC_POSTREAD : 2623 BUS_DMASYNC_POSTWRITE); 2624 bus_dmamap_unload(sdev->target->sbp->dmat, 2625 ocb->dmamap); 2626 } 2627 if (sbp_status->src == SRC_NO_NEXT) { 2628 if (next != NULL) 2629 sbp_orb_pointer(sdev, next); 2630 else if (order > 0) { 2631 /* 2632 * Unordered execution 2633 * We need to send pointer for 2634 * next ORB 2635 */ 2636 sdev->flags |= ORB_LINK_DEAD; 2637 } 2638 } 2639 break; 2640 } else 2641 order ++; 2642 } 2643 splx(s); 2644 SBP_DEBUG(0) 2645 if (ocb && order > 0) { 2646 sbp_show_sdev_info(sdev, 2); 2647 printf("unordered execution order:%d\n", order); 2648 } 2649 END_DEBUG 2650 return (ocb); 2651 } 2652 2653 static struct sbp_ocb * 2654 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2655 { 2656 int s = splfw(); 2657 struct sbp_ocb *prev; 2658 2659 SBP_DEBUG(1) 2660 sbp_show_sdev_info(sdev, 2); 2661 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2662 printf("%s: 0x%08x\n", __FUNCTION__, ocb->bus_addr); 2663 #else 2664 printf("%s: 0x%08jx\n", __FUNCTION__, (uintmax_t)ocb->bus_addr); 2665 #endif 2666 END_DEBUG 2667 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2668 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2669 2670 if (ocb->ccb != NULL) 2671 callout_reset(&ocb->ccb->ccb_h.timeout_ch, 2672 (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb); 2673 2674 if (prev != NULL) { 2675 SBP_DEBUG(2) 2676 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2677 printf("linking chain 0x%x -> 0x%x\n", 2678 prev->bus_addr, ocb->bus_addr); 2679 #else 2680 printf("linking chain 0x%jx -> 0x%jx\n", 2681 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr); 2682 #endif 2683 END_DEBUG 2684 prev->orb[1] = htonl(ocb->bus_addr); 2685 prev->orb[0] = 0; 2686 } 2687 splx(s); 2688 2689 return prev; 2690 } 2691 2692 static struct sbp_ocb * 2693 sbp_get_ocb(struct sbp_dev *sdev) 2694 { 2695 struct sbp_ocb *ocb; 2696 int s = splfw(); 2697 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2698 if (ocb == NULL) { 2699 printf("ocb shortage!!!\n"); 2700 return NULL; 2701 } 2702 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2703 splx(s); 2704 ocb->ccb = NULL; 2705 return (ocb); 2706 } 2707 2708 static void 2709 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2710 { 2711 ocb->flags = 0; 2712 ocb->ccb = NULL; 2713 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2714 } 2715 2716 static void 2717 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2718 { 2719 struct sbp_dev *sdev; 2720 2721 sdev = ocb->sdev; 2722 SBP_DEBUG(0) 2723 sbp_show_sdev_info(sdev, 2); 2724 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2725 printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr); 2726 #else 2727 printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr); 2728 #endif 2729 END_DEBUG 2730 SBP_DEBUG(1) 2731 if (ocb->ccb != NULL) 2732 sbp_print_scsi_cmd(ocb); 2733 END_DEBUG 2734 if (ntohl(ocb->orb[4]) & 0xffff) { 2735 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2736 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2737 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2738 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2739 } 2740 if (ocb->ccb != NULL) { 2741 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2742 ocb->ccb->ccb_h.status = status; 2743 xpt_done(ocb->ccb); 2744 } 2745 sbp_free_ocb(sdev, ocb); 2746 } 2747 2748 static void 2749 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2750 { 2751 int s; 2752 struct sbp_ocb *ocb, *next; 2753 STAILQ_HEAD(, sbp_ocb) temp; 2754 2755 s = splfw(); 2756 2757 bcopy(&sdev->ocbs, &temp, sizeof(temp)); 2758 STAILQ_INIT(&sdev->ocbs); 2759 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2760 next = STAILQ_NEXT(ocb, ocb); 2761 sbp_abort_ocb(ocb, status); 2762 } 2763 2764 splx(s); 2765 } 2766 2767 static devclass_t sbp_devclass; 2768 2769 static device_method_t sbp_methods[] = { 2770 /* device interface */ 2771 DEVMETHOD(device_identify, sbp_identify), 2772 DEVMETHOD(device_probe, sbp_probe), 2773 DEVMETHOD(device_attach, sbp_attach), 2774 DEVMETHOD(device_detach, sbp_detach), 2775 DEVMETHOD(device_shutdown, sbp_shutdown), 2776 2777 { 0, 0 } 2778 }; 2779 2780 static driver_t sbp_driver = { 2781 "sbp", 2782 sbp_methods, 2783 sizeof(struct sbp_softc), 2784 }; 2785 2786 DECLARE_DUMMY_MODULE(sbp); 2787 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2788 MODULE_VERSION(sbp, 1); 2789 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2790 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2791