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 1.10 2004/03/15 01:10:44 dillon 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 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1634 printf("No ocb(%lx) on the queue\n", 1635 #else 1636 printf("No ocb(%x) on the queue\n", 1637 #endif 1638 ntohl(sbp_status->orb_lo)); 1639 } 1640 break; 1641 case 2: 1642 /* unsolicit */ 1643 sbp_show_sdev_info(sdev, 2); 1644 printf("unsolicit status received\n"); 1645 break; 1646 default: 1647 sbp_show_sdev_info(sdev, 2); 1648 printf("unknown sbp_status->src\n"); 1649 } 1650 1651 status_valid0 = (sbp_status->src < 2 1652 && sbp_status->resp == ORB_RES_CMPL 1653 && sbp_status->dead == 0); 1654 status_valid = (status_valid0 && sbp_status->status == 0); 1655 1656 if (!status_valid0 || debug > 2){ 1657 int status; 1658 SBP_DEBUG(0) 1659 sbp_show_sdev_info(sdev, 2); 1660 printf("ORB status src:%x resp:%x dead:%x" 1661 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1662 " len:%x stat:%x orb:%x%08lx\n", 1663 #else 1664 " len:%x stat:%x orb:%x%08x\n", 1665 #endif 1666 sbp_status->src, sbp_status->resp, sbp_status->dead, 1667 sbp_status->len, sbp_status->status, 1668 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1669 END_DEBUG 1670 sbp_show_sdev_info(sdev, 2); 1671 status = sbp_status->status; 1672 switch(sbp_status->resp) { 1673 case 0: 1674 if (status > MAX_ORB_STATUS0) 1675 printf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1676 else 1677 printf("%s\n", orb_status0[status]); 1678 break; 1679 case 1: 1680 printf("Obj: %s, Error: %s\n", 1681 orb_status1_object[(status>>6) & 3], 1682 orb_status1_serial_bus_error[status & 0xf]); 1683 break; 1684 case 2: 1685 printf("Illegal request\n"); 1686 break; 1687 case 3: 1688 printf("Vendor dependent\n"); 1689 break; 1690 default: 1691 printf("unknown respose code %d\n", sbp_status->resp); 1692 } 1693 } 1694 1695 /* we have to reset the fetch agent if it's dead */ 1696 if (sbp_status->dead) { 1697 if (sdev->path) { 1698 xpt_freeze_devq(sdev->path, 1); 1699 sdev->freeze ++; 1700 } 1701 reset_agent = 1; 1702 } 1703 1704 if (ocb == NULL) 1705 goto done; 1706 1707 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1708 case ORB_FMT_NOP: 1709 break; 1710 case ORB_FMT_VED: 1711 break; 1712 case ORB_FMT_STD: 1713 switch(ocb->flags) { 1714 case OCB_ACT_MGM: 1715 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1716 reset_agent = 0; 1717 switch(orb_fun) { 1718 case ORB_FUN_LGI: 1719 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1720 login_res = sdev->login; 1721 login_res->len = ntohs(login_res->len); 1722 login_res->id = ntohs(login_res->id); 1723 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1724 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1725 if (status_valid) { 1726 SBP_DEBUG(0) 1727 sbp_show_sdev_info(sdev, 2); 1728 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)); 1729 END_DEBUG 1730 sbp_busy_timeout(sdev); 1731 } else { 1732 /* forgot logout? */ 1733 sbp_show_sdev_info(sdev, 2); 1734 printf("login failed\n"); 1735 sdev->status = SBP_DEV_RESET; 1736 } 1737 break; 1738 case ORB_FUN_RCN: 1739 login_res = sdev->login; 1740 if (status_valid) { 1741 SBP_DEBUG(0) 1742 sbp_show_sdev_info(sdev, 2); 1743 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); 1744 END_DEBUG 1745 #if 1 1746 if (sdev->status == SBP_DEV_ATTACHED) 1747 sbp_scan_dev(sdev); 1748 else 1749 sbp_agent_reset(sdev); 1750 #else 1751 sdev->status = SBP_DEV_ATTACHED; 1752 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL); 1753 #endif 1754 } else { 1755 /* reconnection hold time exceed? */ 1756 SBP_DEBUG(0) 1757 sbp_show_sdev_info(sdev, 2); 1758 printf("reconnect failed\n"); 1759 END_DEBUG 1760 sbp_login(sdev); 1761 } 1762 break; 1763 case ORB_FUN_LGO: 1764 sdev->status = SBP_DEV_RESET; 1765 break; 1766 case ORB_FUN_RST: 1767 sbp_busy_timeout(sdev); 1768 break; 1769 case ORB_FUN_LUR: 1770 case ORB_FUN_ATA: 1771 case ORB_FUN_ATS: 1772 sbp_agent_reset(sdev); 1773 break; 1774 default: 1775 sbp_show_sdev_info(sdev, 2); 1776 printf("unknown function %d\n", orb_fun); 1777 break; 1778 } 1779 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1780 break; 1781 case OCB_ACT_CMD: 1782 sdev->timeout = 0; 1783 if(ocb->ccb != NULL){ 1784 union ccb *ccb; 1785 /* 1786 u_int32_t *ld; 1787 ld = ocb->ccb->csio.data_ptr; 1788 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) 1789 printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); 1790 else 1791 printf("ptr NULL\n"); 1792 printf("len %d\n", sbp_status->len); 1793 */ 1794 ccb = ocb->ccb; 1795 if(sbp_status->len > 1){ 1796 sbp_scsi_status(sbp_status, ocb); 1797 }else{ 1798 if(sbp_status->resp != ORB_RES_CMPL){ 1799 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1800 }else{ 1801 ccb->ccb_h.status = CAM_REQ_CMP; 1802 } 1803 } 1804 /* fix up inq data */ 1805 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1806 sbp_fix_inq_data(ocb); 1807 xpt_done(ccb); 1808 } 1809 break; 1810 default: 1811 break; 1812 } 1813 } 1814 1815 sbp_free_ocb(sdev, ocb); 1816 done: 1817 if (reset_agent) 1818 sbp_agent_reset(sdev); 1819 1820 done0: 1821 xfer->recv.pay_len = SBP_RECV_LEN; 1822 /* The received packet is usually small enough to be stored within 1823 * the buffer. In that case, the controller return ack_complete and 1824 * no respose is necessary. 1825 * 1826 * XXX fwohci.c and firewire.c should inform event_code such as 1827 * ack_complete or ack_pending to upper driver. 1828 */ 1829 #if NEED_RESPONSE 1830 xfer->send.off = 0; 1831 sfp = (struct fw_pkt *)xfer->send.buf; 1832 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1833 xfer->dst = sfp->mode.wres.dst; 1834 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1835 xfer->act.hand = sbp_loginres_callback; 1836 xfer->retry_req = fw_asybusy; 1837 1838 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1839 sfp->mode.wres.tcode = FWTCODE_WRES; 1840 sfp->mode.wres.rtcode = 0; 1841 sfp->mode.wres.pri = 0; 1842 1843 fw_asyreq(xfer->fc, -1, xfer); 1844 #else 1845 /* recycle */ 1846 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1847 #endif 1848 1849 return; 1850 1851 } 1852 1853 static void 1854 sbp_recv(struct fw_xfer *xfer) 1855 { 1856 int s; 1857 1858 s = splcam(); 1859 sbp_recv1(xfer); 1860 splx(s); 1861 } 1862 /* 1863 * sbp_attach() 1864 */ 1865 static int 1866 sbp_attach(device_t dev) 1867 { 1868 struct sbp_softc *sbp; 1869 struct cam_devq *devq; 1870 struct fw_xfer *xfer; 1871 int i, s, error; 1872 1873 SBP_DEBUG(0) 1874 printf("sbp_attach (cold=%d)\n", cold); 1875 END_DEBUG 1876 1877 if (cold) 1878 sbp_cold ++; 1879 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1880 bzero(sbp, sizeof(struct sbp_softc)); 1881 sbp->fd.dev = dev; 1882 sbp->fd.fc = device_get_ivars(dev); 1883 1884 if (max_speed < 0) 1885 max_speed = sbp->fd.fc->speed; 1886 1887 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat, 1888 /* XXX shoud be 4 for sane backend? */ 1889 /*alignment*/1, 1890 /*boundary*/0, 1891 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1892 /*highaddr*/BUS_SPACE_MAXADDR, 1893 /*filter*/NULL, /*filterarg*/NULL, 1894 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1895 /*maxsegsz*/SBP_SEG_MAX, 1896 /*flags*/BUS_DMA_ALLOCNOW, 1897 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 1898 /*lockfunc*/busdma_lock_mutex, 1899 /*lockarg*/&Giant, 1900 #endif 1901 &sbp->dmat); 1902 if (error != 0) { 1903 printf("sbp_attach: Could not allocate DMA tag " 1904 "- error %d\n", error); 1905 return (ENOMEM); 1906 } 1907 1908 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1909 if (devq == NULL) 1910 return (ENXIO); 1911 1912 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 1913 sbp->targets[i].fwdev = NULL; 1914 sbp->targets[i].luns = NULL; 1915 } 1916 1917 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1918 device_get_unit(dev), 1919 /*untagged*/ 1, 1920 /*tagged*/ SBP_QUEUE_LEN - 1, 1921 devq); 1922 cam_simq_release(devq); 1923 if (sbp->sim == NULL) 1924 return (ENXIO); 1925 1926 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS) 1927 goto fail; 1928 1929 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 1930 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1931 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1932 goto fail; 1933 } 1934 1935 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1936 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1937 sbp->fwb.end = sbp->fwb.start + 0xffff; 1938 sbp->fwb.act_type = FWACT_XFER; 1939 /* pre-allocate xfer */ 1940 STAILQ_INIT(&sbp->fwb.xferlist); 1941 for (i = 0; i < SBP_NUM_OCB/2; i ++) { 1942 xfer = fw_xfer_alloc_buf(M_SBP, 1943 /* send */0, 1944 /* recv */SBP_RECV_LEN); 1945 xfer->act.hand = sbp_recv; 1946 #if NEED_RESPONSE 1947 xfer->fc = sbp->fd.fc; 1948 #endif 1949 xfer->sc = (caddr_t)sbp; 1950 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1951 } 1952 fw_bindadd(sbp->fd.fc, &sbp->fwb); 1953 1954 sbp->fd.post_busreset = sbp_post_busreset; 1955 sbp->fd.post_explore = sbp_post_explore; 1956 1957 if (sbp->fd.fc->status != -1) { 1958 s = splfw(); 1959 sbp_post_busreset((void *)sbp); 1960 sbp_post_explore((void *)sbp); 1961 splx(s); 1962 } 1963 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 1964 1965 return (0); 1966 fail: 1967 cam_sim_free(sbp->sim); 1968 return (ENXIO); 1969 } 1970 1971 static int 1972 sbp_logout_all(struct sbp_softc *sbp) 1973 { 1974 struct sbp_target *target; 1975 struct sbp_dev *sdev; 1976 int i, j; 1977 1978 SBP_DEBUG(0) 1979 printf("sbp_logout_all\n"); 1980 END_DEBUG 1981 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 1982 target = &sbp->targets[i]; 1983 if (target->luns == NULL) 1984 continue; 1985 for (j = 0; j < target->num_lun; j++) { 1986 sdev = target->luns[j]; 1987 if (sdev == NULL) 1988 continue; 1989 callout_stop(&sdev->login_callout); 1990 if (sdev->status >= SBP_DEV_TOATTACH && 1991 sdev->status <= SBP_DEV_ATTACHED) 1992 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 1993 } 1994 } 1995 1996 return 0; 1997 } 1998 1999 static int 2000 sbp_shutdown(device_t dev) 2001 { 2002 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2003 2004 sbp_logout_all(sbp); 2005 return (0); 2006 } 2007 2008 static void 2009 sbp_free_sdev(struct sbp_dev *sdev) 2010 { 2011 int i; 2012 2013 if (sdev == NULL) 2014 return; 2015 for (i = 0; i < SBP_QUEUE_LEN; i++) 2016 bus_dmamap_destroy(sdev->target->sbp->dmat, 2017 sdev->ocb[i].dmamap); 2018 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 2019 free(sdev, M_SBP); 2020 } 2021 2022 static void 2023 sbp_free_target(struct sbp_target *target) 2024 { 2025 struct sbp_softc *sbp; 2026 struct fw_xfer *xfer, *next; 2027 int i; 2028 2029 if (target->luns == NULL) 2030 return; 2031 callout_stop(&target->mgm_ocb_timeout); 2032 sbp = target->sbp; 2033 for (i = 0; i < target->num_lun; i++) 2034 sbp_free_sdev(target->luns[i]); 2035 2036 for (xfer = STAILQ_FIRST(&target->xferlist); 2037 xfer != NULL; xfer = next) { 2038 next = STAILQ_NEXT(xfer, link); 2039 fw_xfer_free_buf(xfer); 2040 } 2041 STAILQ_INIT(&target->xferlist); 2042 free(target->luns, M_SBP); 2043 target->num_lun = 0;; 2044 target->luns = NULL; 2045 target->fwdev = NULL; 2046 } 2047 2048 static int 2049 sbp_detach(device_t dev) 2050 { 2051 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2052 struct firewire_comm *fc = sbp->fd.fc; 2053 struct fw_xfer *xfer, *next; 2054 int i; 2055 2056 SBP_DEBUG(0) 2057 printf("sbp_detach\n"); 2058 END_DEBUG 2059 2060 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2061 sbp_cam_detach_target(&sbp->targets[i]); 2062 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2063 xpt_free_path(sbp->path); 2064 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2065 cam_sim_free(sbp->sim); 2066 2067 sbp_logout_all(sbp); 2068 2069 /* XXX wait for logout completion */ 2070 tsleep(&i, FWPRI, "sbpdtc", hz/2); 2071 2072 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2073 sbp_free_target(&sbp->targets[i]); 2074 2075 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist); 2076 xfer != NULL; xfer = next) { 2077 next = STAILQ_NEXT(xfer, link); 2078 fw_xfer_free_buf(xfer); 2079 } 2080 STAILQ_INIT(&sbp->fwb.xferlist); 2081 fw_bindremove(fc, &sbp->fwb); 2082 2083 bus_dma_tag_destroy(sbp->dmat); 2084 2085 return (0); 2086 } 2087 2088 static void 2089 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2090 { 2091 if (sdev == NULL) 2092 return; 2093 if (sdev->status == SBP_DEV_DEAD) 2094 return; 2095 if (sdev->status == SBP_DEV_RESET) 2096 return; 2097 if (sdev->path) { 2098 xpt_release_devq(sdev->path, 2099 sdev->freeze, TRUE); 2100 sdev->freeze = 0; 2101 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2102 xpt_free_path(sdev->path); 2103 sdev->path = NULL; 2104 } 2105 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2106 } 2107 2108 static void 2109 sbp_cam_detach_target(struct sbp_target *target) 2110 { 2111 int i; 2112 2113 if (target->luns != NULL) { 2114 SBP_DEBUG(0) 2115 printf("sbp_detach_target %d\n", target->target_id); 2116 END_DEBUG 2117 callout_stop(&target->scan_callout); 2118 for (i = 0; i < target->num_lun; i++) 2119 sbp_cam_detach_sdev(target->luns[i]); 2120 } 2121 } 2122 2123 static void 2124 sbp_target_reset(struct sbp_dev *sdev, int method) 2125 { 2126 int i; 2127 struct sbp_target *target = sdev->target; 2128 struct sbp_dev *tsdev; 2129 2130 for (i = 0; i < target->num_lun; i++) { 2131 tsdev = target->luns[i]; 2132 if (tsdev == NULL) 2133 continue; 2134 if (tsdev->status == SBP_DEV_DEAD) 2135 continue; 2136 if (tsdev->status == SBP_DEV_RESET) 2137 continue; 2138 xpt_freeze_devq(tsdev->path, 1); 2139 tsdev->freeze ++; 2140 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2141 if (method == 2) 2142 tsdev->status = SBP_DEV_LOGIN; 2143 } 2144 switch(method) { 2145 case 1: 2146 printf("target reset\n"); 2147 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2148 break; 2149 case 2: 2150 printf("reset start\n"); 2151 sbp_reset_start(sdev); 2152 break; 2153 } 2154 2155 } 2156 2157 static void 2158 sbp_mgm_timeout(void *arg) 2159 { 2160 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2161 struct sbp_dev *sdev = ocb->sdev; 2162 struct sbp_target *target = sdev->target; 2163 2164 sbp_show_sdev_info(sdev, 2); 2165 printf("request timeout(mgm orb:0x%08x) ... ", 2166 (u_int32_t)ocb->bus_addr); 2167 target->mgm_ocb_cur = NULL; 2168 sbp_free_ocb(sdev, ocb); 2169 #if 0 2170 /* XXX */ 2171 printf("run next request\n"); 2172 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2173 #endif 2174 #if 1 2175 printf("reset start\n"); 2176 sbp_reset_start(sdev); 2177 #endif 2178 } 2179 2180 static void 2181 sbp_timeout(void *arg) 2182 { 2183 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2184 struct sbp_dev *sdev = ocb->sdev; 2185 2186 sbp_show_sdev_info(sdev, 2); 2187 printf("request timeout(cmd orb:0x%08x) ... ", 2188 (u_int32_t)ocb->bus_addr); 2189 2190 sdev->timeout ++; 2191 switch(sdev->timeout) { 2192 case 1: 2193 printf("agent reset\n"); 2194 xpt_freeze_devq(sdev->path, 1); 2195 sdev->freeze ++; 2196 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2197 sbp_agent_reset(sdev); 2198 break; 2199 case 2: 2200 case 3: 2201 sbp_target_reset(sdev, sdev->timeout - 1); 2202 break; 2203 #if 0 2204 default: 2205 /* XXX give up */ 2206 sbp_cam_detach_target(target); 2207 if (target->luns != NULL) 2208 free(target->luns, M_SBP); 2209 target->num_lun = 0;; 2210 target->luns = NULL; 2211 target->fwdev = NULL; 2212 #endif 2213 } 2214 } 2215 2216 static void 2217 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2218 { 2219 2220 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2221 struct sbp_target *target = NULL; 2222 struct sbp_dev *sdev = NULL; 2223 2224 /* target:lun -> sdev mapping */ 2225 if (sbp != NULL 2226 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2227 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2228 target = &sbp->targets[ccb->ccb_h.target_id]; 2229 if (target->fwdev != NULL 2230 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2231 && ccb->ccb_h.target_lun < target->num_lun) { 2232 sdev = target->luns[ccb->ccb_h.target_lun]; 2233 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2234 sdev->status != SBP_DEV_PROBE) 2235 sdev = NULL; 2236 } 2237 } 2238 2239 SBP_DEBUG(1) 2240 if (sdev == NULL) 2241 printf("invalid target %d lun %d\n", 2242 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2243 END_DEBUG 2244 2245 switch (ccb->ccb_h.func_code) { 2246 case XPT_SCSI_IO: 2247 case XPT_RESET_DEV: 2248 case XPT_GET_TRAN_SETTINGS: 2249 case XPT_SET_TRAN_SETTINGS: 2250 case XPT_CALC_GEOMETRY: 2251 if (sdev == NULL) { 2252 SBP_DEBUG(1) 2253 printf("%s:%d:%d:func_code 0x%04x: " 2254 "Invalid target (target needed)\n", 2255 device_get_nameunit(sbp->fd.dev), 2256 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2257 ccb->ccb_h.func_code); 2258 END_DEBUG 2259 2260 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2261 xpt_done(ccb); 2262 return; 2263 } 2264 break; 2265 case XPT_PATH_INQ: 2266 case XPT_NOOP: 2267 /* The opcodes sometimes aimed at a target (sc is valid), 2268 * sometimes aimed at the SIM (sc is invalid and target is 2269 * CAM_TARGET_WILDCARD) 2270 */ 2271 if (sbp == NULL && 2272 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2273 SBP_DEBUG(0) 2274 printf("%s:%d:%d func_code 0x%04x: " 2275 "Invalid target (no wildcard)\n", 2276 device_get_nameunit(sbp->fd.dev), 2277 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2278 ccb->ccb_h.func_code); 2279 END_DEBUG 2280 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2281 xpt_done(ccb); 2282 return; 2283 } 2284 break; 2285 default: 2286 /* XXX Hm, we should check the input parameters */ 2287 break; 2288 } 2289 2290 switch (ccb->ccb_h.func_code) { 2291 case XPT_SCSI_IO: 2292 { 2293 struct ccb_scsiio *csio; 2294 struct sbp_ocb *ocb; 2295 int speed; 2296 void *cdb; 2297 2298 csio = &ccb->csio; 2299 2300 SBP_DEBUG(2) 2301 printf("%s:%d:%d XPT_SCSI_IO: " 2302 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2303 ", flags: 0x%02x, " 2304 "%db cmd/%db data/%db sense\n", 2305 device_get_nameunit(sbp->fd.dev), 2306 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2307 csio->cdb_io.cdb_bytes[0], 2308 csio->cdb_io.cdb_bytes[1], 2309 csio->cdb_io.cdb_bytes[2], 2310 csio->cdb_io.cdb_bytes[3], 2311 csio->cdb_io.cdb_bytes[4], 2312 csio->cdb_io.cdb_bytes[5], 2313 csio->cdb_io.cdb_bytes[6], 2314 csio->cdb_io.cdb_bytes[7], 2315 csio->cdb_io.cdb_bytes[8], 2316 csio->cdb_io.cdb_bytes[9], 2317 ccb->ccb_h.flags & CAM_DIR_MASK, 2318 csio->cdb_len, csio->dxfer_len, 2319 csio->sense_len); 2320 END_DEBUG 2321 if(sdev == NULL){ 2322 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2323 xpt_done(ccb); 2324 return; 2325 } 2326 #if 0 2327 /* if we are in probe stage, pass only probe commands */ 2328 if (sdev->status == SBP_DEV_PROBE) { 2329 char *name; 2330 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2331 printf("probe stage, periph name: %s\n", name); 2332 if (strcmp(name, "probe") != 0) { 2333 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2334 xpt_done(ccb); 2335 return; 2336 } 2337 } 2338 #endif 2339 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2340 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2341 xpt_done(ccb); 2342 return; 2343 } 2344 2345 ocb->flags = OCB_ACT_CMD; 2346 ocb->sdev = sdev; 2347 ocb->ccb = ccb; 2348 ccb->ccb_h.ccb_sdev_ptr = sdev; 2349 ocb->orb[0] = htonl(1 << 31); 2350 ocb->orb[1] = 0; 2351 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2352 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2353 speed = min(target->fwdev->speed, max_speed); 2354 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2355 | ORB_CMD_MAXP(speed + 7)); 2356 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2357 ocb->orb[4] |= htonl(ORB_CMD_IN); 2358 } 2359 2360 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2361 printf("sbp: CAM_SCATTER_VALID\n"); 2362 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2363 printf("sbp: CAM_DATA_PHYS\n"); 2364 2365 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2366 cdb = (void *)csio->cdb_io.cdb_ptr; 2367 else 2368 cdb = (void *)&csio->cdb_io.cdb_bytes; 2369 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2370 /* 2371 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2372 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2373 */ 2374 if (ccb->csio.dxfer_len > 0) { 2375 int s, error; 2376 2377 s = splsoftvm(); 2378 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2379 /*dma map*/ocb->dmamap, 2380 ccb->csio.data_ptr, 2381 ccb->csio.dxfer_len, 2382 sbp_execute_ocb, 2383 ocb, 2384 /*flags*/0); 2385 splx(s); 2386 if (error) 2387 printf("sbp: bus_dmamap_load error %d\n", error); 2388 } else 2389 sbp_execute_ocb(ocb, NULL, 0, 0); 2390 break; 2391 } 2392 case XPT_CALC_GEOMETRY: 2393 { 2394 struct ccb_calc_geometry *ccg; 2395 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2396 u_int32_t size_mb; 2397 u_int32_t secs_per_cylinder; 2398 int extended = 1; 2399 #endif 2400 2401 ccg = &ccb->ccg; 2402 if (ccg->block_size == 0) { 2403 printf("sbp_action1: block_size is 0.\n"); 2404 ccb->ccb_h.status = CAM_REQ_INVALID; 2405 xpt_done(ccb); 2406 break; 2407 } 2408 SBP_DEBUG(1) 2409 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2410 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2411 "Volume size = %d\n", 2412 #else 2413 "Volume size = %jd\n", 2414 #endif 2415 device_get_nameunit(sbp->fd.dev), 2416 cam_sim_path(sbp->sim), 2417 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2418 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2419 (uintmax_t) 2420 #endif 2421 ccg->volume_size); 2422 END_DEBUG 2423 2424 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2425 size_mb = ccg->volume_size 2426 / ((1024L * 1024L) / ccg->block_size); 2427 2428 if (size_mb > 1024 && extended) { 2429 ccg->heads = 255; 2430 ccg->secs_per_track = 63; 2431 } else { 2432 ccg->heads = 64; 2433 ccg->secs_per_track = 32; 2434 } 2435 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2436 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2437 ccb->ccb_h.status = CAM_REQ_CMP; 2438 #else 2439 cam_calc_geometry(ccg, /*extended*/1); 2440 #endif 2441 xpt_done(ccb); 2442 break; 2443 } 2444 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2445 { 2446 2447 SBP_DEBUG(1) 2448 printf("%s:%d:XPT_RESET_BUS: \n", 2449 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2450 END_DEBUG 2451 2452 ccb->ccb_h.status = CAM_REQ_INVALID; 2453 xpt_done(ccb); 2454 break; 2455 } 2456 case XPT_PATH_INQ: /* Path routing inquiry */ 2457 { 2458 struct ccb_pathinq *cpi = &ccb->cpi; 2459 2460 SBP_DEBUG(1) 2461 printf("%s:%d:%d XPT_PATH_INQ:.\n", 2462 device_get_nameunit(sbp->fd.dev), 2463 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2464 END_DEBUG 2465 cpi->version_num = 1; /* XXX??? */ 2466 cpi->hba_inquiry = PI_TAG_ABLE; 2467 cpi->target_sprt = 0; 2468 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2469 cpi->hba_eng_cnt = 0; 2470 cpi->max_target = SBP_NUM_TARGETS - 1; 2471 cpi->max_lun = SBP_NUM_LUNS - 1; 2472 cpi->initiator_id = SBP_INITIATOR; 2473 cpi->bus_id = sim->bus_id; 2474 cpi->base_transfer_speed = 400 * 1000 / 8; 2475 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2476 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2477 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2478 cpi->unit_number = sim->unit_number; 2479 2480 cpi->ccb_h.status = CAM_REQ_CMP; 2481 xpt_done(ccb); 2482 break; 2483 } 2484 case XPT_GET_TRAN_SETTINGS: 2485 { 2486 struct ccb_trans_settings *cts = &ccb->cts; 2487 SBP_DEBUG(1) 2488 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2489 device_get_nameunit(sbp->fd.dev), 2490 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2491 END_DEBUG 2492 /* Enable disconnect and tagged queuing */ 2493 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID; 2494 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB; 2495 2496 cts->ccb_h.status = CAM_REQ_CMP; 2497 xpt_done(ccb); 2498 break; 2499 } 2500 case XPT_ABORT: 2501 ccb->ccb_h.status = CAM_UA_ABORT; 2502 xpt_done(ccb); 2503 break; 2504 case XPT_SET_TRAN_SETTINGS: 2505 /* XXX */ 2506 default: 2507 ccb->ccb_h.status = CAM_REQ_INVALID; 2508 xpt_done(ccb); 2509 break; 2510 } 2511 return; 2512 } 2513 2514 static void 2515 sbp_action(struct cam_sim *sim, union ccb *ccb) 2516 { 2517 int s; 2518 2519 s = splfw(); 2520 sbp_action1(sim, ccb); 2521 splx(s); 2522 } 2523 2524 static void 2525 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2526 { 2527 int i; 2528 struct sbp_ocb *ocb; 2529 struct sbp_ocb *prev; 2530 bus_dma_segment_t *s; 2531 2532 if (error) 2533 printf("sbp_execute_ocb: error=%d\n", error); 2534 2535 ocb = (struct sbp_ocb *)arg; 2536 2537 SBP_DEBUG(2) 2538 printf("sbp_execute_ocb: seg %d", seg); 2539 for (i = 0; i < seg; i++) 2540 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2541 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); 2542 #else 2543 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2544 (uintmax_t)segments[i].ds_len); 2545 #endif 2546 printf("\n"); 2547 END_DEBUG 2548 2549 if (seg == 1) { 2550 /* direct pointer */ 2551 s = &segments[0]; 2552 if (s->ds_len > SBP_SEG_MAX) 2553 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2554 ocb->orb[3] = htonl(s->ds_addr); 2555 ocb->orb[4] |= htonl(s->ds_len); 2556 } else if(seg > 1) { 2557 /* page table */ 2558 for (i = 0; i < seg; i++) { 2559 s = &segments[i]; 2560 SBP_DEBUG(0) 2561 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2562 if (s->ds_len < 16) 2563 printf("sbp_execute_ocb: warning, " 2564 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2565 "segment length(%d) is less than 16." 2566 #else 2567 "segment length(%zd) is less than 16." 2568 #endif 2569 "(seg=%d/%d)\n", s->ds_len, i+1, seg); 2570 END_DEBUG 2571 if (s->ds_len > SBP_SEG_MAX) 2572 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2573 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2574 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2575 } 2576 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2577 } 2578 2579 if (seg > 0) 2580 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2581 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2582 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2583 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2584 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2585 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2586 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2587 sbp_orb_pointer(ocb->sdev, ocb); 2588 } 2589 } 2590 2591 static void 2592 sbp_poll(struct cam_sim *sim) 2593 { 2594 struct sbp_softc *sbp; 2595 struct firewire_comm *fc; 2596 2597 sbp = (struct sbp_softc *)sim->softc; 2598 fc = sbp->fd.fc; 2599 2600 fc->poll(fc, 0, -1); 2601 2602 return; 2603 } 2604 2605 static struct sbp_ocb * 2606 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2607 { 2608 struct sbp_ocb *ocb; 2609 struct sbp_ocb *next; 2610 int s = splfw(), order = 0; 2611 int flags; 2612 2613 SBP_DEBUG(1) 2614 sbp_show_sdev_info(sdev, 2); 2615 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2616 printf("%s: 0x%08lx src %d\n", 2617 #else 2618 printf("%s: 0x%08x src %d\n", 2619 #endif 2620 __FUNCTION__, ntohl(sbp_status->orb_lo), sbp_status->src); 2621 END_DEBUG 2622 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2623 next = STAILQ_NEXT(ocb, ocb); 2624 flags = ocb->flags; 2625 if (OCB_MATCH(ocb, sbp_status)) { 2626 /* found */ 2627 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2628 if (ocb->ccb != NULL) 2629 untimeout(sbp_timeout, (caddr_t)ocb, 2630 ocb->ccb->ccb_h.timeout_ch); 2631 if (ntohl(ocb->orb[4]) & 0xffff) { 2632 bus_dmamap_sync(sdev->target->sbp->dmat, 2633 ocb->dmamap, 2634 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2635 BUS_DMASYNC_POSTREAD : 2636 BUS_DMASYNC_POSTWRITE); 2637 bus_dmamap_unload(sdev->target->sbp->dmat, 2638 ocb->dmamap); 2639 } 2640 if (sbp_status->src == SRC_NO_NEXT) { 2641 if (next != NULL) 2642 sbp_orb_pointer(sdev, next); 2643 else if (order > 0) { 2644 /* 2645 * Unordered execution 2646 * We need to send pointer for 2647 * next ORB 2648 */ 2649 sdev->flags |= ORB_LINK_DEAD; 2650 } 2651 } 2652 break; 2653 } else 2654 order ++; 2655 } 2656 splx(s); 2657 SBP_DEBUG(0) 2658 if (ocb && order > 0) { 2659 sbp_show_sdev_info(sdev, 2); 2660 printf("unordered execution order:%d\n", order); 2661 } 2662 END_DEBUG 2663 return (ocb); 2664 } 2665 2666 static struct sbp_ocb * 2667 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2668 { 2669 int s = splfw(); 2670 struct sbp_ocb *prev; 2671 2672 SBP_DEBUG(1) 2673 sbp_show_sdev_info(sdev, 2); 2674 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2675 printf("%s: 0x%08x\n", __FUNCTION__, ocb->bus_addr); 2676 #else 2677 printf("%s: 0x%08jx\n", __FUNCTION__, (uintmax_t)ocb->bus_addr); 2678 #endif 2679 END_DEBUG 2680 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2681 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2682 2683 if (ocb->ccb != NULL) 2684 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb, 2685 (ocb->ccb->ccb_h.timeout * hz) / 1000); 2686 2687 if (prev != NULL) { 2688 SBP_DEBUG(2) 2689 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2690 printf("linking chain 0x%x -> 0x%x\n", 2691 prev->bus_addr, ocb->bus_addr); 2692 #else 2693 printf("linking chain 0x%jx -> 0x%jx\n", 2694 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr); 2695 #endif 2696 END_DEBUG 2697 prev->orb[1] = htonl(ocb->bus_addr); 2698 prev->orb[0] = 0; 2699 } 2700 splx(s); 2701 2702 return prev; 2703 } 2704 2705 static struct sbp_ocb * 2706 sbp_get_ocb(struct sbp_dev *sdev) 2707 { 2708 struct sbp_ocb *ocb; 2709 int s = splfw(); 2710 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2711 if (ocb == NULL) { 2712 printf("ocb shortage!!!\n"); 2713 return NULL; 2714 } 2715 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2716 splx(s); 2717 ocb->ccb = NULL; 2718 return (ocb); 2719 } 2720 2721 static void 2722 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2723 { 2724 ocb->flags = 0; 2725 ocb->ccb = NULL; 2726 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2727 } 2728 2729 static void 2730 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2731 { 2732 struct sbp_dev *sdev; 2733 2734 sdev = ocb->sdev; 2735 SBP_DEBUG(0) 2736 sbp_show_sdev_info(sdev, 2); 2737 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2738 printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr); 2739 #else 2740 printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr); 2741 #endif 2742 END_DEBUG 2743 SBP_DEBUG(1) 2744 if (ocb->ccb != NULL) 2745 sbp_print_scsi_cmd(ocb); 2746 END_DEBUG 2747 if (ntohl(ocb->orb[4]) & 0xffff) { 2748 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2749 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2750 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2751 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2752 } 2753 if (ocb->ccb != NULL) { 2754 untimeout(sbp_timeout, (caddr_t)ocb, 2755 ocb->ccb->ccb_h.timeout_ch); 2756 ocb->ccb->ccb_h.status = status; 2757 xpt_done(ocb->ccb); 2758 } 2759 sbp_free_ocb(sdev, ocb); 2760 } 2761 2762 static void 2763 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2764 { 2765 int s; 2766 struct sbp_ocb *ocb, *next; 2767 STAILQ_HEAD(, sbp_ocb) temp; 2768 2769 s = splfw(); 2770 2771 bcopy(&sdev->ocbs, &temp, sizeof(temp)); 2772 STAILQ_INIT(&sdev->ocbs); 2773 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2774 next = STAILQ_NEXT(ocb, ocb); 2775 sbp_abort_ocb(ocb, status); 2776 } 2777 2778 splx(s); 2779 } 2780 2781 static devclass_t sbp_devclass; 2782 2783 static device_method_t sbp_methods[] = { 2784 /* device interface */ 2785 DEVMETHOD(device_identify, sbp_identify), 2786 DEVMETHOD(device_probe, sbp_probe), 2787 DEVMETHOD(device_attach, sbp_attach), 2788 DEVMETHOD(device_detach, sbp_detach), 2789 DEVMETHOD(device_shutdown, sbp_shutdown), 2790 2791 { 0, 0 } 2792 }; 2793 2794 static driver_t sbp_driver = { 2795 "sbp", 2796 sbp_methods, 2797 sizeof(struct sbp_softc), 2798 }; 2799 2800 DECLARE_DUMMY_MODULE(sbp); 2801 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2802 MODULE_VERSION(sbp, 1); 2803 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2804 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2805