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 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/conf.h> 40 #include <sys/module.h> 41 #include <sys/bus.h> 42 #include <sys/kernel.h> 43 #include <sys/sysctl.h> 44 #include <sys/malloc.h> 45 #include <sys/thread2.h> 46 47 #include <bus/cam/cam.h> 48 #include <bus/cam/cam_ccb.h> 49 #include <bus/cam/cam_sim.h> 50 #include <bus/cam/cam_xpt_sim.h> 51 #include <bus/cam/cam_debug.h> 52 #include <bus/cam/cam_periph.h> 53 #include <bus/cam/scsi/scsi_all.h> 54 55 #include <bus/firewire/firewire.h> 56 #include <bus/firewire/firewirereg.h> 57 #include <bus/firewire/fwdma.h> 58 #include <bus/firewire/iec13213.h> 59 #include "sbp.h" 60 61 #define ccb_sdev_ptr spriv_ptr0 62 #define ccb_sbp_ptr spriv_ptr1 63 64 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 65 /* 66 * Scan_bus doesn't work for more than 8 LUNs 67 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 68 */ 69 #define SBP_NUM_LUNS 64 70 #define SBP_DMA_SIZE PAGE_SIZE 71 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 72 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 73 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 74 75 /* 76 * STATUS FIFO addressing 77 * bit 78 * ----------------------- 79 * 0- 1( 2): 0 (alingment) 80 * 2- 7( 6): target 81 * 8-15( 8): lun 82 * 16-31( 8): reserved 83 * 32-47(16): SBP_BIND_HI 84 * 48-64(16): bus_id, node_id 85 */ 86 #define SBP_BIND_HI 0x1 87 #define SBP_DEV2ADDR(t, l) \ 88 (((u_int64_t)SBP_BIND_HI << 32) \ 89 | (((l) & 0xff) << 8) \ 90 | (((t) & 0x3f) << 2)) 91 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 92 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 93 #define SBP_INITIATOR 7 94 95 static char *orb_fun_name[] = { 96 ORB_FUN_NAMES 97 }; 98 99 static int debug = 0; 100 static int auto_login = 1; 101 static int max_speed = -1; 102 #if 0 103 static int sbp_cold = 1; 104 #endif 105 static int ex_login = 1; 106 static int login_delay = 1000; /* msec */ 107 static int scan_delay = 500; /* msec */ 108 static int sbp_tags = 0; 109 110 SYSCTL_DECL(_hw_firewire); 111 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); 112 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 113 "SBP debug flag"); 114 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 115 "SBP perform login automatically"); 116 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 117 "SBP transfer max speed"); 118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 119 &ex_login, 0, "SBP transfer max speed"); 120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 121 &login_delay, 0, "SBP login delay in msec"); 122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 123 &scan_delay, 0, "SBP scan delay in msec"); 124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 125 "SBP tagged queuing support"); 126 127 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 128 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 129 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 130 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 131 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 132 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 133 134 #define NEED_RESPONSE 0 135 136 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 137 #ifdef __sparc64__ /* iommu */ 138 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX) 139 #else 140 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE) 141 #endif 142 struct sbp_ocb { 143 STAILQ_ENTRY(sbp_ocb) ocb; 144 union ccb *ccb; 145 bus_addr_t bus_addr; 146 u_int32_t orb[8]; 147 #define IND_PTR_OFFSET (8*sizeof(u_int32_t)) 148 struct ind_ptr ind_ptr[SBP_IND_MAX]; 149 struct sbp_dev *sdev; 150 int flags; /* XXX should be removed */ 151 bus_dmamap_t dmamap; 152 }; 153 154 #define OCB_ACT_MGM 0 155 #define OCB_ACT_CMD 1 156 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 157 158 struct sbp_dev{ 159 #define SBP_DEV_RESET 0 /* accept login */ 160 #define SBP_DEV_LOGIN 1 /* to login */ 161 #if 0 162 #define SBP_DEV_RECONN 2 /* to reconnect */ 163 #endif 164 #define SBP_DEV_TOATTACH 3 /* to attach */ 165 #define SBP_DEV_PROBE 4 /* scan lun */ 166 #define SBP_DEV_ATTACHED 5 /* in operation */ 167 #define SBP_DEV_DEAD 6 /* unavailable unit */ 168 #define SBP_DEV_RETRY 7 /* unavailable unit */ 169 u_int8_t status:4, 170 timeout:4; 171 u_int8_t type; 172 u_int16_t lun_id; 173 u_int16_t freeze; 174 #define ORB_LINK_DEAD (1 << 0) 175 #define VALID_LUN (1 << 1) 176 #define ORB_POINTER_ACTIVE (1 << 2) 177 #define ORB_POINTER_NEED (1 << 3) 178 u_int16_t flags; 179 struct cam_path *path; 180 struct sbp_target *target; 181 struct fwdma_alloc dma; 182 struct sbp_login_res *login; 183 struct callout login_callout; 184 struct sbp_ocb *ocb; 185 STAILQ_HEAD(, sbp_ocb) ocbs; 186 STAILQ_HEAD(, sbp_ocb) free_ocbs; 187 char vendor[32]; 188 char product[32]; 189 char revision[10]; 190 }; 191 192 struct sbp_target { 193 int target_id; 194 int num_lun; 195 struct sbp_dev **luns; 196 struct sbp_softc *sbp; 197 struct fw_device *fwdev; 198 u_int32_t mgm_hi, mgm_lo; 199 struct sbp_ocb *mgm_ocb_cur; 200 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 201 struct callout mgm_ocb_timeout; 202 struct callout scan_callout; 203 STAILQ_HEAD(, fw_xfer) xferlist; 204 int n_xfer; 205 }; 206 207 struct sbp_softc { 208 struct firewire_dev_comm fd; 209 struct cam_sim *sim; 210 struct cam_path *path; 211 struct sbp_target targets[SBP_NUM_TARGETS]; 212 struct fw_bind fwb; 213 bus_dma_tag_t dmat; 214 struct timeval last_busreset; 215 #define SIMQ_FREEZED 1 216 int flags; 217 }; 218 219 static void sbp_post_explore (void *); 220 static void sbp_recv (struct fw_xfer *); 221 static void sbp_mgm_callback (struct fw_xfer *); 222 #if 0 223 static void sbp_cmd_callback (struct fw_xfer *); 224 #endif 225 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 226 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 227 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 228 static void sbp_abort_ocb (struct sbp_ocb *, int); 229 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 230 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 231 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 232 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 233 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 234 static void sbp_cam_detach_sdev(struct sbp_dev *); 235 static void sbp_free_sdev(struct sbp_dev *); 236 static void sbp_cam_detach_target (struct sbp_target *); 237 static void sbp_free_target (struct sbp_target *); 238 static void sbp_mgm_timeout (void *arg); 239 static void sbp_timeout (void *arg); 240 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 241 242 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 243 244 /* cam related functions */ 245 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 246 static void sbp_poll(struct cam_sim *sim); 247 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 248 static void sbp_cam_scan_target(void *arg); 249 250 static char *orb_status0[] = { 251 /* 0 */ "No additional information to report", 252 /* 1 */ "Request type not supported", 253 /* 2 */ "Speed not supported", 254 /* 3 */ "Page size not supported", 255 /* 4 */ "Access denied", 256 /* 5 */ "Logical unit not supported", 257 /* 6 */ "Maximum payload too small", 258 /* 7 */ "Reserved for future standardization", 259 /* 8 */ "Resources unavailable", 260 /* 9 */ "Function rejected", 261 /* A */ "Login ID not recognized", 262 /* B */ "Dummy ORB completed", 263 /* C */ "Request aborted", 264 /* FF */ "Unspecified error" 265 #define MAX_ORB_STATUS0 0xd 266 }; 267 268 static char *orb_status1_object[] = { 269 /* 0 */ "Operation request block (ORB)", 270 /* 1 */ "Data buffer", 271 /* 2 */ "Page table", 272 /* 3 */ "Unable to specify" 273 }; 274 275 static char *orb_status1_serial_bus_error[] = { 276 /* 0 */ "Missing acknowledge", 277 /* 1 */ "Reserved; not to be used", 278 /* 2 */ "Time-out error", 279 /* 3 */ "Reserved; not to be used", 280 /* 4 */ "Busy retry limit exceeded(X)", 281 /* 5 */ "Busy retry limit exceeded(A)", 282 /* 6 */ "Busy retry limit exceeded(B)", 283 /* 7 */ "Reserved for future standardization", 284 /* 8 */ "Reserved for future standardization", 285 /* 9 */ "Reserved for future standardization", 286 /* A */ "Reserved for future standardization", 287 /* B */ "Tardy retry limit exceeded", 288 /* C */ "Conflict error", 289 /* D */ "Data error", 290 /* E */ "Type error", 291 /* F */ "Address error" 292 }; 293 294 /* 295 * sbp_probe() 296 */ 297 static int 298 sbp_probe(device_t dev) 299 { 300 device_t pa; 301 302 SBP_DEBUG(0) 303 kprintf("sbp_probe\n"); 304 END_DEBUG 305 306 pa = device_get_parent(dev); 307 if(device_get_unit(dev) != device_get_unit(pa)){ 308 return(ENXIO); 309 } 310 311 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 312 313 if (bootverbose) 314 debug = bootverbose; 315 return (0); 316 } 317 318 static void 319 sbp_show_sdev_info(struct sbp_dev *sdev, int new) 320 { 321 struct fw_device *fwdev; 322 323 kprintf("%s:%d:%d ", 324 device_get_nameunit(sdev->target->sbp->fd.dev), 325 sdev->target->target_id, 326 sdev->lun_id 327 ); 328 if (new == 2) { 329 return; 330 } 331 fwdev = sdev->target->fwdev; 332 kprintf("ordered:%d type:%d EUI:%08x%08x node:%d " 333 "speed:%d maxrec:%d", 334 (sdev->type & 0x40) >> 6, 335 (sdev->type & 0x1f), 336 fwdev->eui.hi, 337 fwdev->eui.lo, 338 fwdev->dst, 339 fwdev->speed, 340 fwdev->maxrec 341 ); 342 if (new) 343 kprintf(" new!\n"); 344 else 345 kprintf("\n"); 346 sbp_show_sdev_info(sdev, 2); 347 kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision); 348 } 349 350 static struct { 351 int bus; 352 int target; 353 struct fw_eui64 eui; 354 } wired[] = { 355 /* Bus Target EUI64 */ 356 #if 0 357 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 358 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 359 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 360 #endif 361 {-1, -1, {0,0}} 362 }; 363 364 static int 365 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 366 { 367 int bus, i, target=-1; 368 char w[SBP_NUM_TARGETS]; 369 370 bzero(w, sizeof(w)); 371 bus = device_get_unit(sbp->fd.dev); 372 373 /* XXX wired-down configuration should be gotten from 374 tunable or device hint */ 375 for (i = 0; wired[i].bus >= 0; i ++) { 376 if (wired[i].bus == bus) { 377 w[wired[i].target] = 1; 378 if (wired[i].eui.hi == fwdev->eui.hi && 379 wired[i].eui.lo == fwdev->eui.lo) 380 target = wired[i].target; 381 } 382 } 383 if (target >= 0) { 384 if(target < SBP_NUM_TARGETS && 385 sbp->targets[target].fwdev == NULL) 386 return(target); 387 device_printf(sbp->fd.dev, 388 "target %d is not free for %08x:%08x\n", 389 target, fwdev->eui.hi, fwdev->eui.lo); 390 target = -1; 391 } 392 /* non-wired target */ 393 for (i = 0; i < SBP_NUM_TARGETS; i ++) 394 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 395 target = i; 396 break; 397 } 398 399 return target; 400 } 401 402 static void 403 sbp_alloc_lun(struct sbp_target *target) 404 { 405 struct crom_context cc; 406 struct csrreg *reg; 407 struct sbp_dev *sdev, **newluns; 408 struct sbp_softc *sbp; 409 int maxlun, lun, i; 410 411 sbp = target->sbp; 412 crom_init_context(&cc, target->fwdev->csrrom); 413 /* XXX shoud parse appropriate unit directories only */ 414 maxlun = -1; 415 while (cc.depth >= 0) { 416 reg = crom_search_key(&cc, CROM_LUN); 417 if (reg == NULL) 418 break; 419 lun = reg->val & 0xffff; 420 SBP_DEBUG(0) 421 kprintf("target %d lun %d found\n", target->target_id, lun); 422 END_DEBUG 423 if (maxlun < lun) 424 maxlun = lun; 425 crom_next(&cc); 426 } 427 if (maxlun < 0) 428 kprintf("%s:%d no LUN found\n", 429 device_get_nameunit(target->sbp->fd.dev), 430 target->target_id); 431 432 maxlun ++; 433 if (maxlun >= SBP_NUM_LUNS) 434 maxlun = SBP_NUM_LUNS; 435 436 /* Invalidiate stale devices */ 437 for (lun = 0; lun < target->num_lun; lun ++) { 438 sdev = target->luns[lun]; 439 if (sdev == NULL) 440 continue; 441 sdev->flags &= ~VALID_LUN; 442 if (lun >= maxlun) { 443 /* lost device */ 444 sbp_cam_detach_sdev(sdev); 445 sbp_free_sdev(sdev); 446 } 447 } 448 449 /* Reallocate */ 450 if (maxlun != target->num_lun) { 451 /* 452 * note: krealloc() does not support M_ZERO. We must zero 453 * the extended region manually. 454 */ 455 newluns = krealloc(target->luns, 456 sizeof(struct sbp_dev *) * maxlun, 457 M_SBP, M_WAITOK); 458 459 if (maxlun > target->num_lun) { 460 bzero(&newluns[target->num_lun], 461 sizeof(struct sbp_dev *) * 462 (maxlun - target->num_lun)); 463 } 464 target->luns = newluns; 465 target->num_lun = maxlun; 466 } 467 468 crom_init_context(&cc, target->fwdev->csrrom); 469 while (cc.depth >= 0) { 470 int new = 0; 471 472 reg = crom_search_key(&cc, CROM_LUN); 473 if (reg == NULL) 474 break; 475 lun = reg->val & 0xffff; 476 if (lun >= SBP_NUM_LUNS) { 477 kprintf("too large lun %d\n", lun); 478 goto next; 479 } 480 481 sdev = target->luns[lun]; 482 if (sdev == NULL) { 483 sdev = kmalloc(sizeof(struct sbp_dev), 484 M_SBP, M_WAITOK | M_ZERO); 485 target->luns[lun] = sdev; 486 sdev->lun_id = lun; 487 sdev->target = target; 488 STAILQ_INIT(&sdev->ocbs); 489 CALLOUT_INIT(&sdev->login_callout); 490 sdev->status = SBP_DEV_RESET; 491 new = 1; 492 } 493 sdev->flags |= VALID_LUN; 494 sdev->type = (reg->val & 0xff0000) >> 16; 495 496 if (new == 0) 497 goto next; 498 499 fwdma_malloc(sbp->fd.fc, 500 /* alignment */ sizeof(u_int32_t), 501 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT); 502 if (sdev->dma.v_addr == NULL) { 503 kprintf("%s: dma space allocation failed\n", 504 __func__); 505 kfree(sdev, M_SBP); 506 target->luns[lun] = NULL; 507 goto next; 508 } 509 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 510 sdev->ocb = (struct sbp_ocb *) 511 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 512 bzero((char *)sdev->ocb, 513 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN); 514 515 STAILQ_INIT(&sdev->free_ocbs); 516 for (i = 0; i < SBP_QUEUE_LEN; i++) { 517 struct sbp_ocb *ocb; 518 ocb = &sdev->ocb[i]; 519 ocb->bus_addr = sdev->dma.bus_addr 520 + SBP_LOGIN_SIZE 521 + sizeof(struct sbp_ocb) * i 522 + offsetof(struct sbp_ocb, orb[0]); 523 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 524 kprintf("sbp_attach: cannot create dmamap\n"); 525 /* XXX */ 526 goto next; 527 } 528 sbp_free_ocb(sdev, ocb); 529 } 530 next: 531 crom_next(&cc); 532 } 533 534 for (lun = 0; lun < target->num_lun; lun ++) { 535 sdev = target->luns[lun]; 536 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 537 sbp_cam_detach_sdev(sdev); 538 sbp_free_sdev(sdev); 539 target->luns[lun] = NULL; 540 } 541 } 542 } 543 544 static struct sbp_target * 545 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 546 { 547 int i; 548 struct sbp_target *target; 549 struct crom_context cc; 550 struct csrreg *reg; 551 552 SBP_DEBUG(1) 553 kprintf("sbp_alloc_target\n"); 554 END_DEBUG 555 i = sbp_new_target(sbp, fwdev); 556 if (i < 0) { 557 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 558 return NULL; 559 } 560 /* new target */ 561 target = &sbp->targets[i]; 562 target->sbp = sbp; 563 target->fwdev = fwdev; 564 target->target_id = i; 565 /* XXX we may want to reload mgm port after each bus reset */ 566 /* XXX there might be multiple management agents */ 567 crom_init_context(&cc, target->fwdev->csrrom); 568 reg = crom_search_key(&cc, CROM_MGM); 569 if (reg == NULL || reg->val == 0) { 570 kprintf("NULL management address\n"); 571 target->fwdev = NULL; 572 return NULL; 573 } 574 target->mgm_hi = 0xffff; 575 target->mgm_lo = 0xf0000000 | (reg->val << 2); 576 target->mgm_ocb_cur = NULL; 577 SBP_DEBUG(1) 578 kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo); 579 END_DEBUG 580 STAILQ_INIT(&target->xferlist); 581 target->n_xfer = 0; 582 STAILQ_INIT(&target->mgm_ocb_queue); 583 CALLOUT_INIT(&target->mgm_ocb_timeout); 584 CALLOUT_INIT(&target->scan_callout); 585 586 target->luns = NULL; 587 target->num_lun = 0; 588 return target; 589 } 590 591 static void 592 sbp_probe_lun(struct sbp_dev *sdev) 593 { 594 struct fw_device *fwdev; 595 struct crom_context c, *cc = &c; 596 struct csrreg *reg; 597 598 bzero(sdev->vendor, sizeof(sdev->vendor)); 599 bzero(sdev->product, sizeof(sdev->product)); 600 601 fwdev = sdev->target->fwdev; 602 crom_init_context(cc, fwdev->csrrom); 603 /* get vendor string */ 604 crom_search_key(cc, CSRKEY_VENDOR); 605 crom_next(cc); 606 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 607 /* skip to the unit directory for SBP-2 */ 608 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 609 if (reg->val == CSRVAL_T10SBP2) 610 break; 611 crom_next(cc); 612 } 613 /* get firmware revision */ 614 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 615 if (reg != NULL) 616 ksnprintf(sdev->revision, sizeof(sdev->revision), 617 "%06x", reg->val); 618 /* get product string */ 619 crom_search_key(cc, CSRKEY_MODEL); 620 crom_next(cc); 621 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 622 } 623 624 static void 625 sbp_login_callout(void *arg) 626 { 627 struct sbp_dev *sdev = (struct sbp_dev *)arg; 628 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 629 } 630 631 static void 632 sbp_login(struct sbp_dev *sdev) 633 { 634 struct timeval delta; 635 struct timeval t; 636 int ticks = 0; 637 638 microtime(&delta); 639 timevalsub(&delta, &sdev->target->sbp->last_busreset); 640 t.tv_sec = login_delay / 1000; 641 t.tv_usec = (login_delay % 1000) * 1000; 642 timevalsub(&t, &delta); 643 if (t.tv_sec >= 0 && t.tv_usec > 0) 644 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 645 SBP_DEBUG(0) 646 kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__, 647 t.tv_sec, t.tv_usec, ticks); 648 END_DEBUG 649 callout_reset(&sdev->login_callout, ticks, 650 sbp_login_callout, (void *)(sdev)); 651 } 652 653 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 654 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 655 656 static void 657 sbp_probe_target(void *arg) 658 { 659 struct sbp_target *target = (struct sbp_target *)arg; 660 struct sbp_softc *sbp; 661 struct sbp_dev *sdev; 662 struct firewire_comm *fc; 663 int i, alive; 664 665 alive = SBP_FWDEV_ALIVE(target->fwdev); 666 SBP_DEBUG(1) 667 kprintf("sbp_probe_target %d\n", target->target_id); 668 if (!alive) 669 kprintf("not alive\n"); 670 END_DEBUG 671 672 sbp = target->sbp; 673 fc = target->sbp->fd.fc; 674 sbp_alloc_lun(target); 675 676 /* XXX callout_stop mgm_ocb and dequeue */ 677 for (i=0; i < target->num_lun; i++) { 678 sdev = target->luns[i]; 679 if (sdev == NULL) 680 continue; 681 if (alive && (sdev->status != SBP_DEV_DEAD)) { 682 if (sdev->path != NULL) { 683 xpt_freeze_devq(sdev->path, 1); 684 sdev->freeze ++; 685 } 686 sbp_probe_lun(sdev); 687 SBP_DEBUG(0) 688 sbp_show_sdev_info(sdev, 689 (sdev->status == SBP_DEV_RESET)); 690 END_DEBUG 691 692 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 693 switch (sdev->status) { 694 case SBP_DEV_RESET: 695 /* new or revived target */ 696 if (auto_login) 697 sbp_login(sdev); 698 break; 699 case SBP_DEV_TOATTACH: 700 case SBP_DEV_PROBE: 701 case SBP_DEV_ATTACHED: 702 case SBP_DEV_RETRY: 703 default: 704 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 705 break; 706 } 707 } else { 708 switch (sdev->status) { 709 case SBP_DEV_ATTACHED: 710 SBP_DEBUG(0) 711 /* the device has gone */ 712 sbp_show_sdev_info(sdev, 2); 713 kprintf("lost target\n"); 714 END_DEBUG 715 #if 0 716 if (sdev->path) { 717 xpt_freeze_devq(sdev->path, 1); 718 sdev->freeze ++; 719 } 720 sdev->status = SBP_DEV_RETRY; 721 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 722 #endif 723 sbp_cam_detach_target(sdev->target); 724 sdev->status = SBP_DEV_RESET; 725 break; 726 case SBP_DEV_PROBE: 727 case SBP_DEV_TOATTACH: 728 sdev->status = SBP_DEV_RESET; 729 break; 730 case SBP_DEV_RETRY: 731 case SBP_DEV_RESET: 732 case SBP_DEV_DEAD: 733 break; 734 } 735 } 736 } 737 } 738 739 static void 740 sbp_post_busreset(void *arg) 741 { 742 struct sbp_softc *sbp; 743 744 sbp = (struct sbp_softc *)arg; 745 SBP_DEBUG(0) 746 kprintf("sbp_post_busreset\n"); 747 END_DEBUG 748 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 749 xpt_freeze_simq(sbp->sim, /*count*/1); 750 sbp->sim->flags |= SIMQ_FREEZED; 751 } 752 microtime(&sbp->last_busreset); 753 } 754 755 static void 756 sbp_post_explore(void *arg) 757 { 758 struct sbp_softc *sbp = (struct sbp_softc *)arg; 759 struct sbp_target *target; 760 struct fw_device *fwdev; 761 int i, alive; 762 763 SBP_DEBUG(0) 764 kprintf("sbp_post_explore\n"); 765 END_DEBUG 766 #if 0 767 if (sbp_cold > 0) 768 sbp_cold --; 769 #endif 770 771 #if 0 772 /* 773 * XXX don't let CAM the bus rest. 774 * CAM tries to do something with freezed (DEV_RETRY) devices. 775 */ 776 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 777 #endif 778 779 /* Gabage Collection */ 780 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 781 target = &sbp->targets[i]; 782 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 783 if (target->fwdev == NULL || target->fwdev == fwdev) 784 break; 785 if (fwdev == NULL) { 786 /* device has removed in lower driver */ 787 sbp_cam_detach_target(target); 788 sbp_free_target(target); 789 } 790 } 791 /* traverse device list */ 792 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 793 SBP_DEBUG(0) 794 kprintf("sbp_post_explore: EUI:%08x%08x ", 795 fwdev->eui.hi, fwdev->eui.lo); 796 if (fwdev->status != FWDEVATTACHED) 797 kprintf("not attached, state=%d.\n", fwdev->status); 798 else 799 kprintf("attached\n"); 800 END_DEBUG 801 alive = SBP_FWDEV_ALIVE(fwdev); 802 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 803 target = &sbp->targets[i]; 804 if(target->fwdev == fwdev ) { 805 /* known target */ 806 break; 807 } 808 } 809 if(i == SBP_NUM_TARGETS){ 810 if (alive) { 811 /* new target */ 812 target = sbp_alloc_target(sbp, fwdev); 813 if (target == NULL) 814 continue; 815 } else { 816 continue; 817 } 818 } 819 sbp_probe_target((void *)target); 820 if (target->num_lun == 0) 821 sbp_free_target(target); 822 } 823 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 824 sbp->sim->flags &= ~SIMQ_FREEZED; 825 } 826 827 #if NEED_RESPONSE 828 static void 829 sbp_loginres_callback(struct fw_xfer *xfer){ 830 struct sbp_dev *sdev; 831 sdev = (struct sbp_dev *)xfer->sc; 832 SBP_DEBUG(1) 833 sbp_show_sdev_info(sdev, 2); 834 kprintf("sbp_loginres_callback\n"); 835 END_DEBUG 836 /* recycle */ 837 crit_enter(); 838 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 839 crit_exit(); 840 return; 841 } 842 #endif 843 844 static __inline void 845 sbp_xfer_free(struct fw_xfer *xfer) 846 { 847 struct sbp_dev *sdev; 848 849 sdev = (struct sbp_dev *)xfer->sc; 850 fw_xfer_unload(xfer); 851 crit_enter(); 852 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 853 crit_exit(); 854 } 855 856 static void 857 sbp_reset_start_callback(struct fw_xfer *xfer) 858 { 859 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 860 struct sbp_target *target = sdev->target; 861 int i; 862 863 if (xfer->resp != 0) { 864 sbp_show_sdev_info(sdev, 2); 865 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp); 866 } 867 868 for (i = 0; i < target->num_lun; i++) { 869 tsdev = target->luns[i]; 870 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 871 sbp_login(tsdev); 872 } 873 } 874 875 static void 876 sbp_reset_start(struct sbp_dev *sdev) 877 { 878 struct fw_xfer *xfer; 879 struct fw_pkt *fp; 880 881 SBP_DEBUG(0) 882 sbp_show_sdev_info(sdev, 2); 883 kprintf("sbp_reset_start\n"); 884 END_DEBUG 885 886 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 887 xfer->act.hand = sbp_reset_start_callback; 888 fp = &xfer->send.hdr; 889 fp->mode.wreqq.dest_hi = 0xffff; 890 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 891 fp->mode.wreqq.data = htonl(0xf); 892 fw_asyreq(xfer->fc, -1, xfer); 893 } 894 895 static void 896 sbp_mgm_callback(struct fw_xfer *xfer) 897 { 898 struct sbp_dev *sdev; 899 int resp; 900 901 sdev = (struct sbp_dev *)xfer->sc; 902 903 SBP_DEBUG(1) 904 sbp_show_sdev_info(sdev, 2); 905 kprintf("sbp_mgm_callback\n"); 906 END_DEBUG 907 resp = xfer->resp; 908 sbp_xfer_free(xfer); 909 #if 0 910 if (resp != 0) { 911 sbp_show_sdev_info(sdev, 2); 912 kprintf("management ORB failed(%d) ... RESET_START\n", resp); 913 sbp_reset_start(sdev); 914 } 915 #endif 916 return; 917 } 918 919 static struct sbp_dev * 920 sbp_next_dev(struct sbp_target *target, int lun) 921 { 922 struct sbp_dev **sdevp; 923 int i; 924 925 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 926 i++, sdevp++) 927 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 928 return(*sdevp); 929 return(NULL); 930 } 931 932 #define SCAN_PRI 1 933 static void 934 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 935 { 936 struct sbp_target *target; 937 struct sbp_dev *sdev; 938 939 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 940 target = sdev->target; 941 SBP_DEBUG(0) 942 sbp_show_sdev_info(sdev, 2); 943 kprintf("sbp_cam_scan_lun\n"); 944 END_DEBUG 945 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 946 sdev->status = SBP_DEV_ATTACHED; 947 } else { 948 sbp_show_sdev_info(sdev, 2); 949 kprintf("scan failed\n"); 950 } 951 sdev = sbp_next_dev(target, sdev->lun_id + 1); 952 if (sdev == NULL) { 953 kfree(ccb, M_SBP); 954 return; 955 } 956 /* reuse ccb */ 957 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 958 ccb->ccb_h.ccb_sdev_ptr = sdev; 959 xpt_action(ccb); 960 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 961 sdev->freeze = 1; 962 } 963 964 static void 965 sbp_cam_scan_target(void *arg) 966 { 967 struct sbp_target *target = (struct sbp_target *)arg; 968 struct sbp_dev *sdev; 969 union ccb *ccb; 970 971 sdev = sbp_next_dev(target, 0); 972 if (sdev == NULL) { 973 kprintf("sbp_cam_scan_target: nothing to do for target%d\n", 974 target->target_id); 975 return; 976 } 977 SBP_DEBUG(0) 978 sbp_show_sdev_info(sdev, 2); 979 kprintf("sbp_cam_scan_target\n"); 980 END_DEBUG 981 ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO); 982 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 983 ccb->ccb_h.func_code = XPT_SCAN_LUN; 984 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 985 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 986 ccb->crcn.flags = CAM_FLAG_NONE; 987 ccb->ccb_h.ccb_sdev_ptr = sdev; 988 989 /* The scan is in progress now. */ 990 xpt_action(ccb); 991 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 992 sdev->freeze = 1; 993 } 994 995 static __inline void 996 sbp_scan_dev(struct sbp_dev *sdev) 997 { 998 sdev->status = SBP_DEV_PROBE; 999 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000, 1000 sbp_cam_scan_target, (void *)sdev->target); 1001 } 1002 1003 static void 1004 sbp_do_attach(struct fw_xfer *xfer) 1005 { 1006 struct sbp_dev *sdev; 1007 struct sbp_target *target; 1008 struct sbp_softc *sbp; 1009 1010 sdev = (struct sbp_dev *)xfer->sc; 1011 target = sdev->target; 1012 sbp = target->sbp; 1013 SBP_DEBUG(0) 1014 sbp_show_sdev_info(sdev, 2); 1015 kprintf("sbp_do_attach\n"); 1016 END_DEBUG 1017 sbp_xfer_free(xfer); 1018 1019 if (sdev->path == NULL) 1020 xpt_create_path(&sdev->path, xpt_periph, 1021 cam_sim_path(target->sbp->sim), 1022 target->target_id, sdev->lun_id); 1023 1024 #if 0 1025 /* 1026 * Let CAM scan the bus if we are in the boot process. 1027 * XXX xpt_scan_bus cannot detect LUN larger than 0 1028 * if LUN 0 doesn't exists. 1029 */ 1030 if (sbp_cold > 0) { 1031 sdev->status = SBP_DEV_ATTACHED; 1032 return; 1033 } 1034 #endif 1035 1036 sbp_scan_dev(sdev); 1037 return; 1038 } 1039 1040 static void 1041 sbp_agent_reset_callback(struct fw_xfer *xfer) 1042 { 1043 struct sbp_dev *sdev; 1044 1045 sdev = (struct sbp_dev *)xfer->sc; 1046 SBP_DEBUG(1) 1047 sbp_show_sdev_info(sdev, 2); 1048 kprintf("%s\n", __func__); 1049 END_DEBUG 1050 if (xfer->resp != 0) { 1051 sbp_show_sdev_info(sdev, 2); 1052 kprintf("%s: resp=%d\n", __func__, xfer->resp); 1053 } 1054 1055 sbp_xfer_free(xfer); 1056 if (sdev->path) { 1057 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1058 sdev->freeze = 0; 1059 } 1060 } 1061 1062 static void 1063 sbp_agent_reset(struct sbp_dev *sdev) 1064 { 1065 struct fw_xfer *xfer; 1066 struct fw_pkt *fp; 1067 1068 SBP_DEBUG(0) 1069 sbp_show_sdev_info(sdev, 2); 1070 kprintf("sbp_agent_reset\n"); 1071 END_DEBUG 1072 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1073 if (xfer == NULL) 1074 return; 1075 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1076 xfer->act.hand = sbp_agent_reset_callback; 1077 else 1078 xfer->act.hand = sbp_do_attach; 1079 fp = &xfer->send.hdr; 1080 fp->mode.wreqq.data = htonl(0xf); 1081 fw_asyreq(xfer->fc, -1, xfer); 1082 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1083 } 1084 1085 static void 1086 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1087 { 1088 struct sbp_dev *sdev; 1089 1090 sdev = (struct sbp_dev *)xfer->sc; 1091 SBP_DEBUG(1) 1092 sbp_show_sdev_info(sdev, 2); 1093 kprintf("sbp_busy_timeout_callback\n"); 1094 END_DEBUG 1095 sbp_xfer_free(xfer); 1096 sbp_agent_reset(sdev); 1097 } 1098 1099 static void 1100 sbp_busy_timeout(struct sbp_dev *sdev) 1101 { 1102 struct fw_pkt *fp; 1103 struct fw_xfer *xfer; 1104 SBP_DEBUG(0) 1105 sbp_show_sdev_info(sdev, 2); 1106 kprintf("sbp_busy_timeout\n"); 1107 END_DEBUG 1108 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1109 1110 xfer->act.hand = sbp_busy_timeout_callback; 1111 fp = &xfer->send.hdr; 1112 fp->mode.wreqq.dest_hi = 0xffff; 1113 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1114 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1115 fw_asyreq(xfer->fc, -1, xfer); 1116 } 1117 1118 static void 1119 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1120 { 1121 struct sbp_dev *sdev; 1122 sdev = (struct sbp_dev *)xfer->sc; 1123 1124 SBP_DEBUG(1) 1125 sbp_show_sdev_info(sdev, 2); 1126 kprintf("%s\n", __func__); 1127 END_DEBUG 1128 if (xfer->resp != 0) { 1129 /* XXX */ 1130 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1131 } 1132 sbp_xfer_free(xfer); 1133 sdev->flags &= ~ORB_POINTER_ACTIVE; 1134 1135 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1136 struct sbp_ocb *ocb; 1137 1138 sdev->flags &= ~ORB_POINTER_NEED; 1139 ocb = STAILQ_FIRST(&sdev->ocbs); 1140 if (ocb != NULL) 1141 sbp_orb_pointer(sdev, ocb); 1142 } 1143 return; 1144 } 1145 1146 static void 1147 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1148 { 1149 struct fw_xfer *xfer; 1150 struct fw_pkt *fp; 1151 SBP_DEBUG(1) 1152 sbp_show_sdev_info(sdev, 2); 1153 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr); 1154 END_DEBUG 1155 1156 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1157 SBP_DEBUG(0) 1158 kprintf("%s: orb pointer active\n", __func__); 1159 END_DEBUG 1160 sdev->flags |= ORB_POINTER_NEED; 1161 return; 1162 } 1163 1164 sdev->flags |= ORB_POINTER_ACTIVE; 1165 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1166 if (xfer == NULL) 1167 return; 1168 xfer->act.hand = sbp_orb_pointer_callback; 1169 1170 fp = &xfer->send.hdr; 1171 fp->mode.wreqb.len = 8; 1172 fp->mode.wreqb.extcode = 0; 1173 xfer->send.payload[0] = 1174 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1175 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr); 1176 1177 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1178 sbp_xfer_free(xfer); 1179 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1180 xpt_done(ocb->ccb); 1181 } 1182 } 1183 1184 #if 0 1185 static void 1186 sbp_cmd_callback(struct fw_xfer *xfer) 1187 { 1188 SBP_DEBUG(1) 1189 struct sbp_dev *sdev; 1190 sdev = (struct sbp_dev *)xfer->sc; 1191 sbp_show_sdev_info(sdev, 2); 1192 kprintf("sbp_cmd_callback\n"); 1193 END_DEBUG 1194 if (xfer->resp != 0) { 1195 /* XXX */ 1196 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1197 } 1198 sbp_xfer_free(xfer); 1199 return; 1200 } 1201 1202 static void 1203 sbp_doorbell(struct sbp_dev *sdev) 1204 { 1205 struct fw_xfer *xfer; 1206 struct fw_pkt *fp; 1207 SBP_DEBUG(1) 1208 sbp_show_sdev_info(sdev, 2); 1209 kprintf("sbp_doorbell\n"); 1210 END_DEBUG 1211 1212 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1213 if (xfer == NULL) 1214 return; 1215 xfer->act.hand = sbp_cmd_callback; 1216 fp = (struct fw_pkt *)xfer->send.buf; 1217 fp->mode.wreqq.data = htonl(0xf); 1218 fw_asyreq(xfer->fc, -1, xfer); 1219 } 1220 #endif 1221 1222 static struct fw_xfer * 1223 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1224 { 1225 struct fw_xfer *xfer; 1226 struct fw_pkt *fp; 1227 struct sbp_target *target; 1228 int new = 0; 1229 1230 target = sdev->target; 1231 crit_enter(); 1232 xfer = STAILQ_FIRST(&target->xferlist); 1233 if (xfer == NULL) { 1234 if (target->n_xfer > 5 /* XXX */) { 1235 kprintf("sbp: no more xfer for this target\n"); 1236 crit_exit(); 1237 return(NULL); 1238 } 1239 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1240 if(xfer == NULL){ 1241 kprintf("sbp: fw_xfer_alloc_buf failed\n"); 1242 crit_exit(); 1243 return NULL; 1244 } 1245 target->n_xfer ++; 1246 if (debug) 1247 kprintf("sbp: alloc %d xfer\n", target->n_xfer); 1248 new = 1; 1249 } else { 1250 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1251 } 1252 crit_exit(); 1253 1254 microtime(&xfer->tv); 1255 1256 if (new) { 1257 xfer->recv.pay_len = 0; 1258 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1259 xfer->fc = sdev->target->sbp->fd.fc; 1260 xfer->retry_req = fw_asybusy; 1261 } 1262 1263 if (tcode == FWTCODE_WREQB) 1264 xfer->send.pay_len = 8; 1265 else 1266 xfer->send.pay_len = 0; 1267 1268 xfer->sc = (caddr_t)sdev; 1269 fp = &xfer->send.hdr; 1270 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1271 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1272 fp->mode.wreqq.tlrt = 0; 1273 fp->mode.wreqq.tcode = tcode; 1274 fp->mode.wreqq.pri = 0; 1275 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1276 1277 return xfer; 1278 1279 } 1280 1281 static void 1282 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1283 { 1284 struct fw_xfer *xfer; 1285 struct fw_pkt *fp; 1286 struct sbp_ocb *ocb; 1287 struct sbp_target *target; 1288 int nid; 1289 1290 target = sdev->target; 1291 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1292 1293 crit_enter(); 1294 if (func == ORB_FUN_RUNQUEUE) { 1295 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1296 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1297 crit_exit(); 1298 return; 1299 } 1300 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1301 goto start; 1302 } 1303 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1304 crit_exit(); 1305 /* XXX */ 1306 return; 1307 } 1308 ocb->flags = OCB_ACT_MGM; 1309 ocb->sdev = sdev; 1310 1311 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1312 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1313 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1314 1315 SBP_DEBUG(0) 1316 sbp_show_sdev_info(sdev, 2); 1317 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]); 1318 END_DEBUG 1319 switch (func) { 1320 case ORB_FUN_LGI: 1321 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1322 ocb->orb[2] = htonl(nid << 16); 1323 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1324 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1325 if (ex_login) 1326 ocb->orb[4] |= htonl(ORB_EXV); 1327 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1328 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1329 break; 1330 case ORB_FUN_ATA: 1331 ocb->orb[0] = htonl((0 << 16) | 0); 1332 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1333 /* fall through */ 1334 case ORB_FUN_RCN: 1335 case ORB_FUN_LGO: 1336 case ORB_FUN_LUR: 1337 case ORB_FUN_RST: 1338 case ORB_FUN_ATS: 1339 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1340 break; 1341 } 1342 1343 if (target->mgm_ocb_cur != NULL) { 1344 /* there is a standing ORB */ 1345 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1346 crit_exit(); 1347 return; 1348 } 1349 start: 1350 target->mgm_ocb_cur = ocb; 1351 crit_exit(); 1352 1353 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1354 sbp_mgm_timeout, (caddr_t)ocb); 1355 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1356 if(xfer == NULL){ 1357 return; 1358 } 1359 xfer->act.hand = sbp_mgm_callback; 1360 1361 fp = &xfer->send.hdr; 1362 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1363 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1364 fp->mode.wreqb.len = 8; 1365 fp->mode.wreqb.extcode = 0; 1366 xfer->send.payload[0] = htonl(nid << 16); 1367 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1368 SBP_DEBUG(0) 1369 sbp_show_sdev_info(sdev, 2); 1370 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr); 1371 END_DEBUG 1372 1373 fw_asyreq(xfer->fc, -1, xfer); 1374 } 1375 1376 static void 1377 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1378 { 1379 struct ccb_scsiio *csio; 1380 1381 csio = &ocb->ccb->csio; 1382 kprintf("%s:%d:%d XPT_SCSI_IO: " 1383 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1384 ", flags: 0x%02x, " 1385 "%db cmd/%db data/%db sense\n", 1386 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1387 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1388 csio->cdb_io.cdb_bytes[0], 1389 csio->cdb_io.cdb_bytes[1], 1390 csio->cdb_io.cdb_bytes[2], 1391 csio->cdb_io.cdb_bytes[3], 1392 csio->cdb_io.cdb_bytes[4], 1393 csio->cdb_io.cdb_bytes[5], 1394 csio->cdb_io.cdb_bytes[6], 1395 csio->cdb_io.cdb_bytes[7], 1396 csio->cdb_io.cdb_bytes[8], 1397 csio->cdb_io.cdb_bytes[9], 1398 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1399 csio->cdb_len, csio->dxfer_len, 1400 csio->sense_len); 1401 } 1402 1403 static void 1404 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1405 { 1406 struct sbp_cmd_status *sbp_cmd_status; 1407 struct scsi_sense_data *sense; 1408 1409 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1410 sense = &ocb->ccb->csio.sense_data; 1411 1412 SBP_DEBUG(0) 1413 sbp_print_scsi_cmd(ocb); 1414 /* XXX need decode status */ 1415 sbp_show_sdev_info(ocb->sdev, 2); 1416 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1417 sbp_cmd_status->status, 1418 sbp_cmd_status->sfmt, 1419 sbp_cmd_status->valid, 1420 sbp_cmd_status->s_key, 1421 sbp_cmd_status->s_code, 1422 sbp_cmd_status->s_qlfr, 1423 sbp_status->len 1424 ); 1425 END_DEBUG 1426 1427 switch (sbp_cmd_status->status) { 1428 case SCSI_STATUS_CHECK_COND: 1429 case SCSI_STATUS_BUSY: 1430 case SCSI_STATUS_CMD_TERMINATED: 1431 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1432 sense->error_code = SSD_CURRENT_ERROR; 1433 }else{ 1434 sense->error_code = SSD_DEFERRED_ERROR; 1435 } 1436 if(sbp_cmd_status->valid) 1437 sense->error_code |= SSD_ERRCODE_VALID; 1438 sense->flags = sbp_cmd_status->s_key; 1439 if(sbp_cmd_status->mark) 1440 sense->flags |= SSD_FILEMARK; 1441 if(sbp_cmd_status->eom) 1442 sense->flags |= SSD_EOM; 1443 if(sbp_cmd_status->ill_len) 1444 sense->flags |= SSD_ILI; 1445 1446 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1447 1448 if (sbp_status->len <= 1) 1449 /* XXX not scsi status. shouldn't be happened */ 1450 sense->extra_len = 0; 1451 else if (sbp_status->len <= 4) 1452 /* add_sense_code(_qual), info, cmd_spec_info */ 1453 sense->extra_len = 6; 1454 else 1455 /* fru, sense_key_spec */ 1456 sense->extra_len = 10; 1457 1458 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1459 1460 sense->add_sense_code = sbp_cmd_status->s_code; 1461 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1462 sense->fru = sbp_cmd_status->fru; 1463 1464 bcopy(&sbp_cmd_status->s_keydep[0], 1465 &sense->sense_key_spec[0], 3); 1466 1467 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1468 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1469 | CAM_AUTOSNS_VALID; 1470 /* 1471 { 1472 u_int8_t j, *tmp; 1473 tmp = sense; 1474 for( j = 0 ; j < 32 ; j+=8){ 1475 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1476 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1477 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1478 } 1479 1480 } 1481 */ 1482 break; 1483 default: 1484 sbp_show_sdev_info(ocb->sdev, 2); 1485 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n", 1486 sbp_cmd_status->status); 1487 } 1488 } 1489 1490 static void 1491 sbp_fix_inq_data(struct sbp_ocb *ocb) 1492 { 1493 union ccb *ccb; 1494 struct sbp_dev *sdev; 1495 struct scsi_inquiry_data *inq; 1496 1497 ccb = ocb->ccb; 1498 sdev = ocb->sdev; 1499 1500 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1501 return; 1502 SBP_DEBUG(1) 1503 sbp_show_sdev_info(sdev, 2); 1504 kprintf("sbp_fix_inq_data\n"); 1505 END_DEBUG 1506 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1507 switch (SID_TYPE(inq)) { 1508 case T_DIRECT: 1509 #if 0 1510 /* 1511 * XXX Convert Direct Access device to RBC. 1512 * I've never seen FireWire DA devices which support READ_6. 1513 */ 1514 if (SID_TYPE(inq) == T_DIRECT) 1515 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1516 #endif 1517 /* fall through */ 1518 case T_RBC: 1519 /* enable tagged queuing */ 1520 if (sbp_tags) 1521 inq->flags |= SID_CmdQue; 1522 else 1523 inq->flags &= ~SID_CmdQue; 1524 /* 1525 * Override vendor/product/revision information. 1526 * Some devices sometimes return strange strings. 1527 */ 1528 #if 1 1529 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1530 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1531 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1532 #endif 1533 break; 1534 } 1535 } 1536 1537 static void 1538 sbp_recv1(struct fw_xfer *xfer) 1539 { 1540 struct fw_pkt *rfp; 1541 #if NEED_RESPONSE 1542 struct fw_pkt *sfp; 1543 #endif 1544 struct sbp_softc *sbp; 1545 struct sbp_dev *sdev; 1546 struct sbp_ocb *ocb; 1547 struct sbp_login_res *login_res = NULL; 1548 struct sbp_status *sbp_status; 1549 struct sbp_target *target; 1550 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1551 u_int32_t addr; 1552 /* 1553 u_int32_t *ld; 1554 ld = xfer->recv.buf; 1555 kprintf("sbp %x %d %d %08x %08x %08x %08x\n", 1556 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1557 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1558 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1559 */ 1560 sbp = (struct sbp_softc *)xfer->sc; 1561 if (xfer->resp != 0){ 1562 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1563 goto done0; 1564 } 1565 if (xfer->recv.payload == NULL){ 1566 kprintf("sbp_recv: xfer->recv.payload == NULL\n"); 1567 goto done0; 1568 } 1569 rfp = &xfer->recv.hdr; 1570 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1571 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1572 goto done0; 1573 } 1574 sbp_status = (struct sbp_status *)xfer->recv.payload; 1575 addr = rfp->mode.wreqb.dest_lo; 1576 SBP_DEBUG(2) 1577 kprintf("received address 0x%x\n", addr); 1578 END_DEBUG 1579 t = SBP_ADDR2TRG(addr); 1580 if (t >= SBP_NUM_TARGETS) { 1581 device_printf(sbp->fd.dev, 1582 "sbp_recv1: invalid target %d\n", t); 1583 goto done0; 1584 } 1585 target = &sbp->targets[t]; 1586 l = SBP_ADDR2LUN(addr); 1587 if (l >= target->num_lun || target->luns[l] == NULL) { 1588 device_printf(sbp->fd.dev, 1589 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1590 goto done0; 1591 } 1592 sdev = target->luns[l]; 1593 1594 ocb = NULL; 1595 switch (sbp_status->src) { 1596 case 0: 1597 case 1: 1598 /* check mgm_ocb_cur first */ 1599 ocb = target->mgm_ocb_cur; 1600 if (ocb != NULL) { 1601 if (OCB_MATCH(ocb, sbp_status)) { 1602 callout_stop(&target->mgm_ocb_timeout); 1603 target->mgm_ocb_cur = NULL; 1604 break; 1605 } 1606 } 1607 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1608 if (ocb == NULL) { 1609 sbp_show_sdev_info(sdev, 2); 1610 kprintf("No ocb(%x) on the queue\n", 1611 ntohl(sbp_status->orb_lo)); 1612 } 1613 break; 1614 case 2: 1615 /* unsolicit */ 1616 sbp_show_sdev_info(sdev, 2); 1617 kprintf("unsolicit status received\n"); 1618 break; 1619 default: 1620 sbp_show_sdev_info(sdev, 2); 1621 kprintf("unknown sbp_status->src\n"); 1622 } 1623 1624 status_valid0 = (sbp_status->src < 2 1625 && sbp_status->resp == ORB_RES_CMPL 1626 && sbp_status->dead == 0); 1627 status_valid = (status_valid0 && sbp_status->status == 0); 1628 1629 if (!status_valid0 || debug > 2){ 1630 int status; 1631 SBP_DEBUG(0) 1632 sbp_show_sdev_info(sdev, 2); 1633 kprintf("ORB status src:%x resp:%x dead:%x" 1634 " len:%x stat:%x orb:%x%08x\n", 1635 sbp_status->src, sbp_status->resp, sbp_status->dead, 1636 sbp_status->len, sbp_status->status, 1637 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1638 END_DEBUG 1639 sbp_show_sdev_info(sdev, 2); 1640 status = sbp_status->status; 1641 switch(sbp_status->resp) { 1642 case 0: 1643 if (status > MAX_ORB_STATUS0) 1644 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1645 else 1646 kprintf("%s\n", orb_status0[status]); 1647 break; 1648 case 1: 1649 kprintf("Obj: %s, Error: %s\n", 1650 orb_status1_object[(status>>6) & 3], 1651 orb_status1_serial_bus_error[status & 0xf]); 1652 break; 1653 case 2: 1654 kprintf("Illegal request\n"); 1655 break; 1656 case 3: 1657 kprintf("Vendor dependent\n"); 1658 break; 1659 default: 1660 kprintf("unknown respose code %d\n", sbp_status->resp); 1661 } 1662 } 1663 1664 /* we have to reset the fetch agent if it's dead */ 1665 if (sbp_status->dead) { 1666 if (sdev->path) { 1667 xpt_freeze_devq(sdev->path, 1); 1668 sdev->freeze ++; 1669 } 1670 reset_agent = 1; 1671 } 1672 1673 if (ocb == NULL) 1674 goto done; 1675 1676 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1677 case ORB_FMT_NOP: 1678 break; 1679 case ORB_FMT_VED: 1680 break; 1681 case ORB_FMT_STD: 1682 switch(ocb->flags) { 1683 case OCB_ACT_MGM: 1684 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1685 reset_agent = 0; 1686 switch(orb_fun) { 1687 case ORB_FUN_LGI: 1688 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1689 login_res = sdev->login; 1690 login_res->len = ntohs(login_res->len); 1691 login_res->id = ntohs(login_res->id); 1692 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1693 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1694 if (status_valid) { 1695 SBP_DEBUG(0) 1696 sbp_show_sdev_info(sdev, 2); 1697 kprintf("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)); 1698 END_DEBUG 1699 sbp_busy_timeout(sdev); 1700 } else { 1701 /* forgot logout? */ 1702 sbp_show_sdev_info(sdev, 2); 1703 kprintf("login failed\n"); 1704 sdev->status = SBP_DEV_RESET; 1705 } 1706 break; 1707 case ORB_FUN_RCN: 1708 login_res = sdev->login; 1709 if (status_valid) { 1710 SBP_DEBUG(0) 1711 sbp_show_sdev_info(sdev, 2); 1712 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); 1713 END_DEBUG 1714 #if 1 1715 if (sdev->status == SBP_DEV_ATTACHED) 1716 sbp_scan_dev(sdev); 1717 else 1718 sbp_agent_reset(sdev); 1719 #else 1720 sdev->status = SBP_DEV_ATTACHED; 1721 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL); 1722 #endif 1723 } else { 1724 /* reconnection hold time exceed? */ 1725 SBP_DEBUG(0) 1726 sbp_show_sdev_info(sdev, 2); 1727 kprintf("reconnect failed\n"); 1728 END_DEBUG 1729 sbp_login(sdev); 1730 } 1731 break; 1732 case ORB_FUN_LGO: 1733 sdev->status = SBP_DEV_RESET; 1734 break; 1735 case ORB_FUN_RST: 1736 sbp_busy_timeout(sdev); 1737 break; 1738 case ORB_FUN_LUR: 1739 case ORB_FUN_ATA: 1740 case ORB_FUN_ATS: 1741 sbp_agent_reset(sdev); 1742 break; 1743 default: 1744 sbp_show_sdev_info(sdev, 2); 1745 kprintf("unknown function %d\n", orb_fun); 1746 break; 1747 } 1748 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1749 break; 1750 case OCB_ACT_CMD: 1751 sdev->timeout = 0; 1752 if(ocb->ccb != NULL){ 1753 union ccb *ccb; 1754 /* 1755 u_int32_t *ld; 1756 ld = ocb->ccb->csio.data_ptr; 1757 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) 1758 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); 1759 else 1760 kprintf("ptr NULL\n"); 1761 kprintf("len %d\n", sbp_status->len); 1762 */ 1763 ccb = ocb->ccb; 1764 if(sbp_status->len > 1){ 1765 sbp_scsi_status(sbp_status, ocb); 1766 }else{ 1767 if(sbp_status->resp != ORB_RES_CMPL){ 1768 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1769 }else{ 1770 ccb->ccb_h.status = CAM_REQ_CMP; 1771 } 1772 } 1773 /* fix up inq data */ 1774 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1775 sbp_fix_inq_data(ocb); 1776 xpt_done(ccb); 1777 } 1778 break; 1779 default: 1780 break; 1781 } 1782 } 1783 1784 sbp_free_ocb(sdev, ocb); 1785 done: 1786 if (reset_agent) 1787 sbp_agent_reset(sdev); 1788 1789 done0: 1790 xfer->recv.pay_len = SBP_RECV_LEN; 1791 /* The received packet is usually small enough to be stored within 1792 * the buffer. In that case, the controller return ack_complete and 1793 * no respose is necessary. 1794 * 1795 * XXX fwohci.c and firewire.c should inform event_code such as 1796 * ack_complete or ack_pending to upper driver. 1797 */ 1798 #if NEED_RESPONSE 1799 xfer->send.off = 0; 1800 sfp = (struct fw_pkt *)xfer->send.buf; 1801 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1802 xfer->dst = sfp->mode.wres.dst; 1803 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1804 xfer->act.hand = sbp_loginres_callback; 1805 xfer->retry_req = fw_asybusy; 1806 1807 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1808 sfp->mode.wres.tcode = FWTCODE_WRES; 1809 sfp->mode.wres.rtcode = 0; 1810 sfp->mode.wres.pri = 0; 1811 1812 fw_asyreq(xfer->fc, -1, xfer); 1813 #else 1814 /* recycle */ 1815 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1816 #endif 1817 1818 return; 1819 1820 } 1821 1822 static void 1823 sbp_recv(struct fw_xfer *xfer) 1824 { 1825 crit_enter(); 1826 sbp_recv1(xfer); 1827 crit_exit(); 1828 } 1829 /* 1830 * sbp_attach() 1831 */ 1832 static int 1833 sbp_attach(device_t dev) 1834 { 1835 struct sbp_softc *sbp; 1836 struct cam_devq *devq; 1837 struct fw_xfer *xfer; 1838 int i, error; 1839 1840 SBP_DEBUG(0) 1841 kprintf("sbp_attach (cold=%d)\n", cold); 1842 END_DEBUG 1843 1844 #if 0 1845 if (cold) 1846 sbp_cold ++; 1847 #endif 1848 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1849 bzero(sbp, sizeof(struct sbp_softc)); 1850 sbp->fd.dev = dev; 1851 sbp->fd.fc = device_get_ivars(dev); 1852 1853 if (max_speed < 0) 1854 max_speed = sbp->fd.fc->speed; 1855 1856 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat, 1857 /* XXX shoud be 4 for sane backend? */ 1858 /*alignment*/1, 1859 /*boundary*/0, 1860 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1861 /*highaddr*/BUS_SPACE_MAXADDR, 1862 /*filter*/NULL, /*filterarg*/NULL, 1863 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1864 /*maxsegsz*/SBP_SEG_MAX, 1865 /*flags*/BUS_DMA_ALLOCNOW, 1866 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 1867 /*lockfunc*/busdma_lock_mutex, 1868 /*lockarg*/&Giant, 1869 #endif 1870 &sbp->dmat); 1871 if (error != 0) { 1872 kprintf("sbp_attach: Could not allocate DMA tag " 1873 "- error %d\n", error); 1874 return (ENOMEM); 1875 } 1876 1877 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1878 if (devq == NULL) 1879 return (ENXIO); 1880 1881 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 1882 sbp->targets[i].fwdev = NULL; 1883 sbp->targets[i].luns = NULL; 1884 } 1885 1886 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1887 device_get_unit(dev), 1888 &sim_mplock, 1889 /*untagged*/ 1, 1890 /*tagged*/ SBP_QUEUE_LEN - 1, 1891 devq); 1892 cam_simq_release(devq); 1893 if (sbp->sim == NULL) 1894 return (ENXIO); 1895 1896 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS) 1897 goto fail; 1898 1899 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 1900 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1901 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1902 goto fail; 1903 } 1904 1905 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1906 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1907 sbp->fwb.end = sbp->fwb.start + 0xffff; 1908 sbp->fwb.act_type = FWACT_XFER; 1909 /* pre-allocate xfer */ 1910 STAILQ_INIT(&sbp->fwb.xferlist); 1911 for (i = 0; i < SBP_NUM_OCB/2; i ++) { 1912 xfer = fw_xfer_alloc_buf(M_SBP, 1913 /* send */0, 1914 /* recv */SBP_RECV_LEN); 1915 xfer->act.hand = sbp_recv; 1916 #if NEED_RESPONSE 1917 xfer->fc = sbp->fd.fc; 1918 #endif 1919 xfer->sc = (caddr_t)sbp; 1920 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1921 } 1922 fw_bindadd(sbp->fd.fc, &sbp->fwb); 1923 1924 sbp->fd.post_busreset = sbp_post_busreset; 1925 sbp->fd.post_explore = sbp_post_explore; 1926 1927 if (sbp->fd.fc->status != -1) { 1928 crit_enter(); 1929 sbp_post_busreset((void *)sbp); 1930 sbp_post_explore((void *)sbp); 1931 crit_exit(); 1932 } 1933 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 1934 1935 return (0); 1936 fail: 1937 cam_sim_free(sbp->sim); 1938 return (ENXIO); 1939 } 1940 1941 static int 1942 sbp_logout_all(struct sbp_softc *sbp) 1943 { 1944 struct sbp_target *target; 1945 struct sbp_dev *sdev; 1946 int i, j; 1947 1948 SBP_DEBUG(0) 1949 kprintf("sbp_logout_all\n"); 1950 END_DEBUG 1951 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 1952 target = &sbp->targets[i]; 1953 if (target->luns == NULL) 1954 continue; 1955 for (j = 0; j < target->num_lun; j++) { 1956 sdev = target->luns[j]; 1957 if (sdev == NULL) 1958 continue; 1959 callout_stop(&sdev->login_callout); 1960 if (sdev->status >= SBP_DEV_TOATTACH && 1961 sdev->status <= SBP_DEV_ATTACHED) 1962 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 1963 } 1964 } 1965 1966 return 0; 1967 } 1968 1969 static int 1970 sbp_shutdown(device_t dev) 1971 { 1972 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 1973 1974 sbp_logout_all(sbp); 1975 return (0); 1976 } 1977 1978 static void 1979 sbp_free_sdev(struct sbp_dev *sdev) 1980 { 1981 int i; 1982 1983 if (sdev == NULL) 1984 return; 1985 for (i = 0; i < SBP_QUEUE_LEN; i++) 1986 bus_dmamap_destroy(sdev->target->sbp->dmat, 1987 sdev->ocb[i].dmamap); 1988 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 1989 kfree(sdev, M_SBP); 1990 } 1991 1992 static void 1993 sbp_free_target(struct sbp_target *target) 1994 { 1995 struct sbp_softc *sbp; 1996 struct fw_xfer *xfer, *next; 1997 int i; 1998 1999 if (target->luns == NULL) 2000 return; 2001 callout_stop(&target->mgm_ocb_timeout); 2002 sbp = target->sbp; 2003 for (i = 0; i < target->num_lun; i++) 2004 sbp_free_sdev(target->luns[i]); 2005 2006 for (xfer = STAILQ_FIRST(&target->xferlist); 2007 xfer != NULL; xfer = next) { 2008 next = STAILQ_NEXT(xfer, link); 2009 fw_xfer_free_buf(xfer); 2010 } 2011 STAILQ_INIT(&target->xferlist); 2012 kfree(target->luns, M_SBP); 2013 target->num_lun = 0; 2014 target->luns = NULL; 2015 target->fwdev = NULL; 2016 } 2017 2018 static int 2019 sbp_detach(device_t dev) 2020 { 2021 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2022 struct firewire_comm *fc = sbp->fd.fc; 2023 struct fw_xfer *xfer, *next; 2024 int i; 2025 2026 SBP_DEBUG(0) 2027 kprintf("sbp_detach\n"); 2028 END_DEBUG 2029 2030 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2031 sbp_cam_detach_target(&sbp->targets[i]); 2032 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2033 xpt_free_path(sbp->path); 2034 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2035 cam_sim_free(sbp->sim); 2036 2037 sbp_logout_all(sbp); 2038 2039 /* XXX wait for logout completion */ 2040 tsleep(&i, FWPRI, "sbpdtc", hz/2); 2041 2042 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2043 sbp_free_target(&sbp->targets[i]); 2044 2045 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist); 2046 xfer != NULL; xfer = next) { 2047 next = STAILQ_NEXT(xfer, link); 2048 fw_xfer_free_buf(xfer); 2049 } 2050 STAILQ_INIT(&sbp->fwb.xferlist); 2051 fw_bindremove(fc, &sbp->fwb); 2052 2053 bus_dma_tag_destroy(sbp->dmat); 2054 2055 return (0); 2056 } 2057 2058 static void 2059 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2060 { 2061 if (sdev == NULL) 2062 return; 2063 if (sdev->status == SBP_DEV_DEAD) 2064 return; 2065 if (sdev->status == SBP_DEV_RESET) 2066 return; 2067 if (sdev->path) { 2068 xpt_release_devq(sdev->path, 2069 sdev->freeze, TRUE); 2070 sdev->freeze = 0; 2071 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2072 xpt_free_path(sdev->path); 2073 sdev->path = NULL; 2074 } 2075 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2076 } 2077 2078 static void 2079 sbp_cam_detach_target(struct sbp_target *target) 2080 { 2081 int i; 2082 2083 if (target->luns != NULL) { 2084 SBP_DEBUG(0) 2085 kprintf("sbp_detach_target %d\n", target->target_id); 2086 END_DEBUG 2087 callout_stop(&target->scan_callout); 2088 for (i = 0; i < target->num_lun; i++) 2089 sbp_cam_detach_sdev(target->luns[i]); 2090 } 2091 } 2092 2093 static void 2094 sbp_target_reset(struct sbp_dev *sdev, int method) 2095 { 2096 int i; 2097 struct sbp_target *target = sdev->target; 2098 struct sbp_dev *tsdev; 2099 2100 for (i = 0; i < target->num_lun; i++) { 2101 tsdev = target->luns[i]; 2102 if (tsdev == NULL) 2103 continue; 2104 if (tsdev->status == SBP_DEV_DEAD) 2105 continue; 2106 if (tsdev->status == SBP_DEV_RESET) 2107 continue; 2108 xpt_freeze_devq(tsdev->path, 1); 2109 tsdev->freeze ++; 2110 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2111 if (method == 2) 2112 tsdev->status = SBP_DEV_LOGIN; 2113 } 2114 switch(method) { 2115 case 1: 2116 kprintf("target reset\n"); 2117 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2118 break; 2119 case 2: 2120 kprintf("reset start\n"); 2121 sbp_reset_start(sdev); 2122 break; 2123 } 2124 2125 } 2126 2127 static void 2128 sbp_mgm_timeout(void *arg) 2129 { 2130 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2131 struct sbp_dev *sdev = ocb->sdev; 2132 struct sbp_target *target = sdev->target; 2133 2134 sbp_show_sdev_info(sdev, 2); 2135 kprintf("request timeout(mgm orb:0x%08x) ... ", 2136 (u_int32_t)ocb->bus_addr); 2137 target->mgm_ocb_cur = NULL; 2138 sbp_free_ocb(sdev, ocb); 2139 #if 0 2140 /* XXX */ 2141 kprintf("run next request\n"); 2142 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2143 #endif 2144 #if 1 2145 kprintf("reset start\n"); 2146 sbp_reset_start(sdev); 2147 #endif 2148 } 2149 2150 static void 2151 sbp_timeout(void *arg) 2152 { 2153 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2154 struct sbp_dev *sdev = ocb->sdev; 2155 2156 sbp_show_sdev_info(sdev, 2); 2157 kprintf("request timeout(cmd orb:0x%08x) ... ", 2158 (u_int32_t)ocb->bus_addr); 2159 2160 sdev->timeout ++; 2161 switch(sdev->timeout) { 2162 case 1: 2163 kprintf("agent reset\n"); 2164 xpt_freeze_devq(sdev->path, 1); 2165 sdev->freeze ++; 2166 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2167 sbp_agent_reset(sdev); 2168 break; 2169 case 2: 2170 case 3: 2171 sbp_target_reset(sdev, sdev->timeout - 1); 2172 break; 2173 #if 0 2174 default: 2175 /* XXX give up */ 2176 sbp_cam_detach_target(target); 2177 if (target->luns != NULL) 2178 kfree(target->luns, M_SBP); 2179 target->num_lun = 0; 2180 target->luns = NULL; 2181 target->fwdev = NULL; 2182 #endif 2183 } 2184 } 2185 2186 static void 2187 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2188 { 2189 2190 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2191 struct sbp_target *target = NULL; 2192 struct sbp_dev *sdev = NULL; 2193 2194 /* target:lun -> sdev mapping */ 2195 if (sbp != NULL 2196 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2197 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2198 target = &sbp->targets[ccb->ccb_h.target_id]; 2199 if (target->fwdev != NULL 2200 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2201 && ccb->ccb_h.target_lun < target->num_lun) { 2202 sdev = target->luns[ccb->ccb_h.target_lun]; 2203 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2204 sdev->status != SBP_DEV_PROBE) 2205 sdev = NULL; 2206 } 2207 } 2208 2209 SBP_DEBUG(1) 2210 if (sdev == NULL) 2211 kprintf("invalid target %d lun %d\n", 2212 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2213 END_DEBUG 2214 2215 switch (ccb->ccb_h.func_code) { 2216 case XPT_SCSI_IO: 2217 case XPT_RESET_DEV: 2218 case XPT_GET_TRAN_SETTINGS: 2219 case XPT_SET_TRAN_SETTINGS: 2220 case XPT_CALC_GEOMETRY: 2221 if (sdev == NULL) { 2222 SBP_DEBUG(1) 2223 kprintf("%s:%d:%d:func_code 0x%04x: " 2224 "Invalid target (target needed)\n", 2225 device_get_nameunit(sbp->fd.dev), 2226 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2227 ccb->ccb_h.func_code); 2228 END_DEBUG 2229 2230 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2231 xpt_done(ccb); 2232 return; 2233 } 2234 break; 2235 case XPT_PATH_INQ: 2236 case XPT_NOOP: 2237 /* The opcodes sometimes aimed at a target (sc is valid), 2238 * sometimes aimed at the SIM (sc is invalid and target is 2239 * CAM_TARGET_WILDCARD) 2240 */ 2241 if (sbp == NULL && 2242 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2243 SBP_DEBUG(0) 2244 kprintf("%s:%d:%d func_code 0x%04x: " 2245 "Invalid target (no wildcard)\n", 2246 device_get_nameunit(sbp->fd.dev), 2247 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2248 ccb->ccb_h.func_code); 2249 END_DEBUG 2250 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2251 xpt_done(ccb); 2252 return; 2253 } 2254 break; 2255 default: 2256 /* XXX Hm, we should check the input parameters */ 2257 break; 2258 } 2259 2260 switch (ccb->ccb_h.func_code) { 2261 case XPT_SCSI_IO: 2262 { 2263 struct ccb_scsiio *csio; 2264 struct sbp_ocb *ocb; 2265 int speed; 2266 void *cdb; 2267 2268 csio = &ccb->csio; 2269 2270 SBP_DEBUG(2) 2271 kprintf("%s:%d:%d XPT_SCSI_IO: " 2272 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2273 ", flags: 0x%02x, " 2274 "%db cmd/%db data/%db sense\n", 2275 device_get_nameunit(sbp->fd.dev), 2276 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2277 csio->cdb_io.cdb_bytes[0], 2278 csio->cdb_io.cdb_bytes[1], 2279 csio->cdb_io.cdb_bytes[2], 2280 csio->cdb_io.cdb_bytes[3], 2281 csio->cdb_io.cdb_bytes[4], 2282 csio->cdb_io.cdb_bytes[5], 2283 csio->cdb_io.cdb_bytes[6], 2284 csio->cdb_io.cdb_bytes[7], 2285 csio->cdb_io.cdb_bytes[8], 2286 csio->cdb_io.cdb_bytes[9], 2287 ccb->ccb_h.flags & CAM_DIR_MASK, 2288 csio->cdb_len, csio->dxfer_len, 2289 csio->sense_len); 2290 END_DEBUG 2291 if(sdev == NULL){ 2292 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2293 xpt_done(ccb); 2294 return; 2295 } 2296 #if 0 2297 /* if we are in probe stage, pass only probe commands */ 2298 if (sdev->status == SBP_DEV_PROBE) { 2299 char *name; 2300 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2301 kprintf("probe stage, periph name: %s\n", name); 2302 if (strcmp(name, "probe") != 0) { 2303 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2304 xpt_done(ccb); 2305 return; 2306 } 2307 } 2308 #endif 2309 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2310 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2311 xpt_done(ccb); 2312 return; 2313 } 2314 2315 ocb->flags = OCB_ACT_CMD; 2316 ocb->sdev = sdev; 2317 ocb->ccb = ccb; 2318 ccb->ccb_h.ccb_sdev_ptr = sdev; 2319 ocb->orb[0] = htonl(1 << 31); 2320 ocb->orb[1] = 0; 2321 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2322 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2323 speed = min(target->fwdev->speed, max_speed); 2324 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2325 | ORB_CMD_MAXP(speed + 7)); 2326 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2327 ocb->orb[4] |= htonl(ORB_CMD_IN); 2328 } 2329 2330 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2331 kprintf("sbp: CAM_SCATTER_VALID\n"); 2332 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2333 kprintf("sbp: CAM_DATA_PHYS\n"); 2334 2335 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2336 cdb = (void *)csio->cdb_io.cdb_ptr; 2337 else 2338 cdb = (void *)&csio->cdb_io.cdb_bytes; 2339 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2340 /* 2341 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2342 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2343 */ 2344 if (ccb->csio.dxfer_len > 0) { 2345 int error; 2346 2347 crit_enter(); 2348 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2349 /*dma map*/ocb->dmamap, 2350 ccb->csio.data_ptr, 2351 ccb->csio.dxfer_len, 2352 sbp_execute_ocb, 2353 ocb, 2354 /*flags*/0); 2355 crit_exit(); 2356 if (error) 2357 kprintf("sbp: bus_dmamap_load error %d\n", error); 2358 } else 2359 sbp_execute_ocb(ocb, NULL, 0, 0); 2360 break; 2361 } 2362 case XPT_CALC_GEOMETRY: 2363 { 2364 struct ccb_calc_geometry *ccg; 2365 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2366 u_int32_t size_mb; 2367 u_int32_t secs_per_cylinder; 2368 int extended = 1; 2369 #endif 2370 2371 ccg = &ccb->ccg; 2372 if (ccg->block_size == 0) { 2373 kprintf("sbp_action1: block_size is 0.\n"); 2374 ccb->ccb_h.status = CAM_REQ_INVALID; 2375 xpt_done(ccb); 2376 break; 2377 } 2378 SBP_DEBUG(1) 2379 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: Volume size = %ju\n", 2380 device_get_nameunit(sbp->fd.dev), 2381 cam_sim_path(sbp->sim), 2382 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2383 (uintmax_t)ccg->volume_size); 2384 END_DEBUG 2385 2386 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2387 size_mb = ccg->volume_size 2388 / ((1024L * 1024L) / ccg->block_size); 2389 2390 if (size_mb > 1024 && extended) { 2391 ccg->heads = 255; 2392 ccg->secs_per_track = 63; 2393 } else { 2394 ccg->heads = 64; 2395 ccg->secs_per_track = 32; 2396 } 2397 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2398 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2399 ccb->ccb_h.status = CAM_REQ_CMP; 2400 #else 2401 cam_calc_geometry(ccg, /*extended*/1); 2402 #endif 2403 xpt_done(ccb); 2404 break; 2405 } 2406 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2407 { 2408 2409 SBP_DEBUG(1) 2410 kprintf("%s:%d:XPT_RESET_BUS: \n", 2411 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2412 END_DEBUG 2413 2414 ccb->ccb_h.status = CAM_REQ_INVALID; 2415 xpt_done(ccb); 2416 break; 2417 } 2418 case XPT_PATH_INQ: /* Path routing inquiry */ 2419 { 2420 struct ccb_pathinq *cpi = &ccb->cpi; 2421 2422 SBP_DEBUG(1) 2423 kprintf("%s:%d:%d XPT_PATH_INQ:.\n", 2424 device_get_nameunit(sbp->fd.dev), 2425 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2426 END_DEBUG 2427 cpi->version_num = 1; /* XXX??? */ 2428 cpi->hba_inquiry = PI_TAG_ABLE; 2429 cpi->target_sprt = 0; 2430 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2431 cpi->hba_eng_cnt = 0; 2432 cpi->max_target = SBP_NUM_TARGETS - 1; 2433 cpi->max_lun = SBP_NUM_LUNS - 1; 2434 cpi->initiator_id = SBP_INITIATOR; 2435 cpi->bus_id = sim->bus_id; 2436 cpi->base_transfer_speed = 400 * 1000 / 8; 2437 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2438 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2439 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2440 cpi->unit_number = sim->unit_number; 2441 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2442 cpi->transport_version = 2; 2443 cpi->protocol = PROTO_SCSI; 2444 cpi->protocol_version = SCSI_REV_2; 2445 2446 cpi->ccb_h.status = CAM_REQ_CMP; 2447 xpt_done(ccb); 2448 break; 2449 } 2450 case XPT_GET_TRAN_SETTINGS: 2451 { 2452 struct ccb_trans_settings *cts = &ccb->cts; 2453 struct ccb_trans_settings_scsi *scsi = 2454 &cts->proto_specific.scsi; 2455 struct ccb_trans_settings_spi *spi = 2456 &cts->xport_specific.spi; 2457 2458 cts->protocol = PROTO_SCSI; 2459 cts->protocol_version = SCSI_REV_2; 2460 cts->transport = XPORT_SPI; /* should have a FireWire */ 2461 cts->transport_version = 2; 2462 spi->valid = CTS_SPI_VALID_DISC; 2463 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2464 scsi->valid = CTS_SCSI_VALID_TQ; 2465 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2466 SBP_DEBUG(1) 2467 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2468 device_get_nameunit(sbp->fd.dev), 2469 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2470 END_DEBUG 2471 cts->ccb_h.status = CAM_REQ_CMP; 2472 xpt_done(ccb); 2473 break; 2474 } 2475 case XPT_ABORT: 2476 ccb->ccb_h.status = CAM_UA_ABORT; 2477 xpt_done(ccb); 2478 break; 2479 case XPT_SET_TRAN_SETTINGS: 2480 /* XXX */ 2481 default: 2482 ccb->ccb_h.status = CAM_REQ_INVALID; 2483 xpt_done(ccb); 2484 break; 2485 } 2486 return; 2487 } 2488 2489 static void 2490 sbp_action(struct cam_sim *sim, union ccb *ccb) 2491 { 2492 crit_enter(); 2493 sbp_action1(sim, ccb); 2494 crit_exit(); 2495 } 2496 2497 static void 2498 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2499 { 2500 int i; 2501 struct sbp_ocb *ocb; 2502 struct sbp_ocb *prev; 2503 bus_dma_segment_t *s; 2504 2505 if (error) 2506 kprintf("sbp_execute_ocb: error=%d\n", error); 2507 2508 ocb = (struct sbp_ocb *)arg; 2509 2510 SBP_DEBUG(2) 2511 kprintf("sbp_execute_ocb: seg %d", seg); 2512 for (i = 0; i < seg; i++) 2513 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2514 (uintmax_t)segments[i].ds_len); 2515 kprintf("\n"); 2516 END_DEBUG 2517 2518 if (seg == 1) { 2519 /* direct pointer */ 2520 s = &segments[0]; 2521 if (s->ds_len > SBP_SEG_MAX) 2522 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2523 ocb->orb[3] = htonl(s->ds_addr); 2524 ocb->orb[4] |= htonl(s->ds_len); 2525 } else if(seg > 1) { 2526 /* page table */ 2527 for (i = 0; i < seg; i++) { 2528 s = &segments[i]; 2529 SBP_DEBUG(0) 2530 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2531 if (s->ds_len < 16) 2532 kprintf("sbp_execute_ocb: warning, " 2533 "segment length(%zd) is less than 16." 2534 "(seg=%d/%jd)\n", 2535 (size_t)s->ds_len, i+1, (intmax_t)seg); 2536 END_DEBUG 2537 if (s->ds_len > SBP_SEG_MAX) 2538 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2539 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2540 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2541 } 2542 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2543 } 2544 2545 if (seg > 0) 2546 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2547 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2548 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2549 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2550 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2551 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2552 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2553 sbp_orb_pointer(ocb->sdev, ocb); 2554 } 2555 } 2556 2557 static void 2558 sbp_poll(struct cam_sim *sim) 2559 { 2560 struct sbp_softc *sbp; 2561 struct firewire_comm *fc; 2562 2563 sbp = (struct sbp_softc *)sim->softc; 2564 fc = sbp->fd.fc; 2565 2566 fc->poll(fc, 0, -1); 2567 2568 return; 2569 } 2570 2571 static struct sbp_ocb * 2572 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2573 { 2574 struct sbp_ocb *ocb; 2575 struct sbp_ocb *next; 2576 int order = 0; 2577 int flags; 2578 2579 crit_enter(); 2580 2581 SBP_DEBUG(1) 2582 sbp_show_sdev_info(sdev, 2); 2583 kprintf("%s: 0x%08x src %d\n", 2584 __func__, ntohl(sbp_status->orb_lo), sbp_status->src); 2585 END_DEBUG 2586 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2587 next = STAILQ_NEXT(ocb, ocb); 2588 flags = ocb->flags; 2589 if (OCB_MATCH(ocb, sbp_status)) { 2590 /* found */ 2591 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2592 if (ocb->ccb != NULL) 2593 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2594 if (ntohl(ocb->orb[4]) & 0xffff) { 2595 bus_dmamap_sync(sdev->target->sbp->dmat, 2596 ocb->dmamap, 2597 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2598 BUS_DMASYNC_POSTREAD : 2599 BUS_DMASYNC_POSTWRITE); 2600 bus_dmamap_unload(sdev->target->sbp->dmat, 2601 ocb->dmamap); 2602 } 2603 if (sbp_status->src == SRC_NO_NEXT) { 2604 if (next != NULL) 2605 sbp_orb_pointer(sdev, next); 2606 else if (order > 0) { 2607 /* 2608 * Unordered execution 2609 * We need to send pointer for 2610 * next ORB 2611 */ 2612 sdev->flags |= ORB_LINK_DEAD; 2613 } 2614 } 2615 break; 2616 } else 2617 order ++; 2618 } 2619 crit_exit(); 2620 SBP_DEBUG(0) 2621 if (ocb && order > 0) { 2622 sbp_show_sdev_info(sdev, 2); 2623 kprintf("unordered execution order:%d\n", order); 2624 } 2625 END_DEBUG 2626 return (ocb); 2627 } 2628 2629 static struct sbp_ocb * 2630 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2631 { 2632 struct sbp_ocb *prev; 2633 2634 crit_enter(); 2635 2636 SBP_DEBUG(1) 2637 sbp_show_sdev_info(sdev, 2); 2638 kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr); 2639 END_DEBUG 2640 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2641 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2642 2643 if (ocb->ccb != NULL) 2644 callout_reset(&ocb->ccb->ccb_h.timeout_ch, 2645 (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb); 2646 2647 if (prev != NULL) { 2648 SBP_DEBUG(2) 2649 kprintf("linking chain 0x%jx -> 0x%jx\n", 2650 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr); 2651 END_DEBUG 2652 prev->orb[1] = htonl(ocb->bus_addr); 2653 prev->orb[0] = 0; 2654 } 2655 crit_exit(); 2656 2657 return prev; 2658 } 2659 2660 static struct sbp_ocb * 2661 sbp_get_ocb(struct sbp_dev *sdev) 2662 { 2663 struct sbp_ocb *ocb; 2664 2665 crit_enter(); 2666 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2667 if (ocb == NULL) { 2668 kprintf("ocb shortage!!!\n"); 2669 crit_exit(); 2670 return NULL; 2671 } 2672 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2673 crit_exit(); 2674 ocb->ccb = NULL; 2675 return (ocb); 2676 } 2677 2678 static void 2679 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2680 { 2681 ocb->flags = 0; 2682 ocb->ccb = NULL; 2683 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2684 } 2685 2686 static void 2687 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2688 { 2689 struct sbp_dev *sdev; 2690 2691 sdev = ocb->sdev; 2692 SBP_DEBUG(0) 2693 sbp_show_sdev_info(sdev, 2); 2694 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr); 2695 END_DEBUG 2696 SBP_DEBUG(1) 2697 if (ocb->ccb != NULL) 2698 sbp_print_scsi_cmd(ocb); 2699 END_DEBUG 2700 if (ntohl(ocb->orb[4]) & 0xffff) { 2701 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2702 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2703 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2704 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2705 } 2706 if (ocb->ccb != NULL) { 2707 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2708 ocb->ccb->ccb_h.status = status; 2709 xpt_done(ocb->ccb); 2710 } 2711 sbp_free_ocb(sdev, ocb); 2712 } 2713 2714 static void 2715 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2716 { 2717 struct sbp_ocb *ocb, *next; 2718 STAILQ_HEAD(, sbp_ocb) temp; 2719 2720 crit_enter(); 2721 STAILQ_INIT(&temp); 2722 STAILQ_CONCAT(&temp, &sdev->ocbs); 2723 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2724 next = STAILQ_NEXT(ocb, ocb); 2725 sbp_abort_ocb(ocb, status); 2726 } 2727 crit_exit(); 2728 } 2729 2730 static devclass_t sbp_devclass; 2731 2732 /* 2733 * Because sbp is a static device that always exists under any attached 2734 * firewire device, and not scanned by the firewire device, we need an 2735 * identify function to install the device. For our sanity we want 2736 * the sbp device to have the same unit number as the fireweire device. 2737 */ 2738 2739 static device_method_t sbp_methods[] = { 2740 /* device interface */ 2741 DEVMETHOD(device_identify, bus_generic_identify_sameunit), 2742 DEVMETHOD(device_probe, sbp_probe), 2743 DEVMETHOD(device_attach, sbp_attach), 2744 DEVMETHOD(device_detach, sbp_detach), 2745 DEVMETHOD(device_shutdown, sbp_shutdown), 2746 2747 { 0, 0 } 2748 }; 2749 2750 static driver_t sbp_driver = { 2751 "sbp", 2752 sbp_methods, 2753 sizeof(struct sbp_softc), 2754 }; 2755 2756 DECLARE_DUMMY_MODULE(sbp); 2757 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, NULL, NULL); 2758 MODULE_VERSION(sbp, 1); 2759 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2760 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2761