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 1.86 2007/03/16 01:23:36 simokawa Exp $ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/conf.h> 41 #include <sys/module.h> 42 #include <sys/bus.h> 43 #include <sys/kernel.h> 44 #include <sys/sysctl.h> 45 #include <sys/malloc.h> 46 #include <sys/thread2.h> 47 48 #include <bus/cam/cam.h> 49 #include <bus/cam/cam_ccb.h> 50 #include <bus/cam/cam_sim.h> 51 #include <bus/cam/cam_xpt_sim.h> 52 #include <bus/cam/cam_debug.h> 53 #include <bus/cam/cam_periph.h> 54 #include <bus/cam/scsi/scsi_all.h> 55 #include <bus/cam/cam_xpt_periph.h> 56 57 #include <bus/firewire/firewire.h> 58 #include <bus/firewire/firewirereg.h> 59 #include <bus/firewire/fwdma.h> 60 #include <bus/firewire/iec13213.h> 61 #include "sbp.h" 62 63 #define ccb_sdev_ptr spriv_ptr0 64 #define ccb_sbp_ptr spriv_ptr1 65 66 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 67 /* 68 * Scan_bus doesn't work for more than 8 LUNs 69 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 70 */ 71 #define SBP_NUM_LUNS 64 72 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) 73 #define SBP_DMA_SIZE PAGE_SIZE 74 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 75 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 76 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 77 78 /* 79 * STATUS FIFO addressing 80 * bit 81 * ----------------------- 82 * 0- 1( 2): 0 (alingment) 83 * 2- 7( 6): target 84 * 8-15( 8): lun 85 * 16-31( 8): reserved 86 * 32-47(16): SBP_BIND_HI 87 * 48-64(16): bus_id, node_id 88 */ 89 #define SBP_BIND_HI 0x1 90 #define SBP_DEV2ADDR(t, l) \ 91 (((u_int64_t)SBP_BIND_HI << 32) \ 92 | (((l) & 0xff) << 8) \ 93 | (((t) & 0x3f) << 2)) 94 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 95 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 96 #define SBP_INITIATOR 7 97 98 static char *orb_fun_name[] = { 99 ORB_FUN_NAMES 100 }; 101 102 static int debug = 0; 103 static int auto_login = 1; 104 static int max_speed = -1; 105 #if 0 106 static int sbp_cold = 1; 107 #endif 108 static int ex_login = 1; 109 static int login_delay = 1000; /* msec */ 110 static int scan_delay = 500; /* msec */ 111 static int sbp_tags = 0; 112 113 SYSCTL_DECL(_hw_firewire); 114 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); 115 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 116 "SBP debug flag"); 117 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 118 "SBP perform login automatically"); 119 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 120 "SBP transfer max speed"); 121 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 122 &ex_login, 0, "SBP transfer max speed"); 123 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 124 &login_delay, 0, "SBP login delay in msec"); 125 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 126 &scan_delay, 0, "SBP scan delay in msec"); 127 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 128 "SBP tagged queuing support"); 129 130 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 131 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 132 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 133 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 134 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 135 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 136 137 #define NEED_RESPONSE 0 138 139 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 140 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 141 142 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_dev *sdev; 661 int i, alive; 662 663 alive = SBP_FWDEV_ALIVE(target->fwdev); 664 SBP_DEBUG(1) 665 kprintf("sbp_probe_target %d\n", target->target_id); 666 if (!alive) 667 kprintf("not alive\n"); 668 END_DEBUG 669 670 sbp_alloc_lun(target); 671 672 /* XXX callout_stop mgm_ocb and dequeue */ 673 for (i=0; i < target->num_lun; i++) { 674 sdev = target->luns[i]; 675 if (sdev == NULL) 676 continue; 677 if (alive && (sdev->status != SBP_DEV_DEAD)) { 678 if (sdev->path != NULL) { 679 xpt_freeze_devq(sdev->path, 1); 680 sdev->freeze ++; 681 } 682 sbp_probe_lun(sdev); 683 SBP_DEBUG(0) 684 sbp_show_sdev_info(sdev, 685 (sdev->status == SBP_DEV_RESET)); 686 END_DEBUG 687 688 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 689 switch (sdev->status) { 690 case SBP_DEV_RESET: 691 /* new or revived target */ 692 if (auto_login) 693 sbp_login(sdev); 694 break; 695 case SBP_DEV_TOATTACH: 696 case SBP_DEV_PROBE: 697 case SBP_DEV_ATTACHED: 698 case SBP_DEV_RETRY: 699 default: 700 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 701 break; 702 } 703 } else { 704 switch (sdev->status) { 705 case SBP_DEV_ATTACHED: 706 SBP_DEBUG(0) 707 /* the device has gone */ 708 sbp_show_sdev_info(sdev, 2); 709 kprintf("lost target\n"); 710 END_DEBUG 711 #if 0 712 if (sdev->path) { 713 xpt_freeze_devq(sdev->path, 1); 714 sdev->freeze ++; 715 } 716 sdev->status = SBP_DEV_RETRY; 717 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 718 #endif 719 sbp_cam_detach_target(sdev->target); 720 sdev->status = SBP_DEV_RESET; 721 break; 722 case SBP_DEV_PROBE: 723 case SBP_DEV_TOATTACH: 724 sdev->status = SBP_DEV_RESET; 725 break; 726 case SBP_DEV_RETRY: 727 case SBP_DEV_RESET: 728 case SBP_DEV_DEAD: 729 break; 730 } 731 } 732 } 733 } 734 735 static void 736 sbp_post_busreset(void *arg) 737 { 738 struct sbp_softc *sbp; 739 740 sbp = (struct sbp_softc *)arg; 741 SBP_DEBUG(0) 742 kprintf("sbp_post_busreset\n"); 743 END_DEBUG 744 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 745 xpt_freeze_simq(sbp->sim, /*count*/1); 746 sbp->sim->flags |= SIMQ_FREEZED; 747 } 748 microtime(&sbp->last_busreset); 749 } 750 751 static void 752 sbp_post_explore(void *arg) 753 { 754 struct sbp_softc *sbp = (struct sbp_softc *)arg; 755 struct sbp_target *target; 756 struct fw_device *fwdev; 757 int i, alive; 758 759 SBP_DEBUG(0) 760 kprintf("sbp_post_explore\n"); 761 END_DEBUG 762 #if 0 763 if (sbp_cold > 0) 764 sbp_cold --; 765 #endif 766 767 #if 0 768 /* 769 * XXX don't let CAM the bus rest. 770 * CAM tries to do something with freezed (DEV_RETRY) devices. 771 */ 772 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 773 #endif 774 775 /* Gabage Collection */ 776 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 777 target = &sbp->targets[i]; 778 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) 779 if (target->fwdev == NULL || target->fwdev == fwdev) 780 break; 781 if (fwdev == NULL) { 782 /* device has removed in lower driver */ 783 sbp_cam_detach_target(target); 784 sbp_free_target(target); 785 } 786 } 787 /* traverse device list */ 788 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { 789 SBP_DEBUG(0) 790 kprintf("sbp_post_explore: EUI:%08x%08x ", 791 fwdev->eui.hi, fwdev->eui.lo); 792 if (fwdev->status != FWDEVATTACHED) 793 kprintf("not attached, state=%d.\n", fwdev->status); 794 else 795 kprintf("attached\n"); 796 END_DEBUG 797 alive = SBP_FWDEV_ALIVE(fwdev); 798 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ 799 target = &sbp->targets[i]; 800 if(target->fwdev == fwdev ) { 801 /* known target */ 802 break; 803 } 804 } 805 if(i == SBP_NUM_TARGETS){ 806 if (alive) { 807 /* new target */ 808 target = sbp_alloc_target(sbp, fwdev); 809 if (target == NULL) 810 continue; 811 } else { 812 continue; 813 } 814 } 815 sbp_probe_target((void *)target); 816 if (target->num_lun == 0) 817 sbp_free_target(target); 818 } 819 xpt_release_simq(sbp->sim, /*run queue*/TRUE); 820 sbp->sim->flags &= ~SIMQ_FREEZED; 821 } 822 823 #if NEED_RESPONSE 824 static void 825 sbp_loginres_callback(struct fw_xfer *xfer){ 826 struct sbp_dev *sdev; 827 sdev = (struct sbp_dev *)xfer->sc; 828 SBP_DEBUG(1) 829 sbp_show_sdev_info(sdev, 2); 830 kprintf("sbp_loginres_callback\n"); 831 END_DEBUG 832 /* recycle */ 833 crit_enter(); 834 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); 835 crit_exit(); 836 return; 837 } 838 #endif 839 840 static __inline void 841 sbp_xfer_free(struct fw_xfer *xfer) 842 { 843 struct sbp_dev *sdev; 844 845 sdev = (struct sbp_dev *)xfer->sc; 846 fw_xfer_unload(xfer); 847 crit_enter(); 848 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); 849 crit_exit(); 850 } 851 852 static void 853 sbp_reset_start_callback(struct fw_xfer *xfer) 854 { 855 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; 856 struct sbp_target *target = sdev->target; 857 int i; 858 859 if (xfer->resp != 0) { 860 sbp_show_sdev_info(sdev, 2); 861 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp); 862 } 863 864 for (i = 0; i < target->num_lun; i++) { 865 tsdev = target->luns[i]; 866 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) 867 sbp_login(tsdev); 868 } 869 } 870 871 static void 872 sbp_reset_start(struct sbp_dev *sdev) 873 { 874 struct fw_xfer *xfer; 875 struct fw_pkt *fp; 876 877 SBP_DEBUG(0) 878 sbp_show_sdev_info(sdev, 2); 879 kprintf("sbp_reset_start\n"); 880 END_DEBUG 881 882 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 883 xfer->act.hand = sbp_reset_start_callback; 884 fp = &xfer->send.hdr; 885 fp->mode.wreqq.dest_hi = 0xffff; 886 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; 887 fp->mode.wreqq.data = htonl(0xf); 888 fw_asyreq(xfer->fc, -1, xfer); 889 } 890 891 static void 892 sbp_mgm_callback(struct fw_xfer *xfer) 893 { 894 struct sbp_dev *sdev; 895 #if 0 896 int resp; 897 #endif 898 899 sdev = (struct sbp_dev *)xfer->sc; 900 901 SBP_DEBUG(1) 902 sbp_show_sdev_info(sdev, 2); 903 kprintf("sbp_mgm_callback\n"); 904 END_DEBUG 905 #if 0 906 resp = xfer->resp; 907 #endif 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 xpt_free_ccb(&ccb->ccb_h); 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 = xpt_alloc_ccb(); 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 1009 sdev = (struct sbp_dev *)xfer->sc; 1010 target = sdev->target; 1011 SBP_DEBUG(0) 1012 sbp_show_sdev_info(sdev, 2); 1013 kprintf("sbp_do_attach\n"); 1014 END_DEBUG 1015 sbp_xfer_free(xfer); 1016 1017 if (sdev->path == NULL) 1018 xpt_create_path(&sdev->path, xpt_periph, 1019 cam_sim_path(target->sbp->sim), 1020 target->target_id, sdev->lun_id); 1021 1022 #if 0 1023 /* 1024 * Let CAM scan the bus if we are in the boot process. 1025 * XXX xpt_scan_bus cannot detect LUN larger than 0 1026 * if LUN 0 doesn't exists. 1027 */ 1028 if (sbp_cold > 0) { 1029 sdev->status = SBP_DEV_ATTACHED; 1030 return; 1031 } 1032 #endif 1033 1034 sbp_scan_dev(sdev); 1035 return; 1036 } 1037 1038 static void 1039 sbp_agent_reset_callback(struct fw_xfer *xfer) 1040 { 1041 struct sbp_dev *sdev; 1042 1043 sdev = (struct sbp_dev *)xfer->sc; 1044 SBP_DEBUG(1) 1045 sbp_show_sdev_info(sdev, 2); 1046 kprintf("%s\n", __func__); 1047 END_DEBUG 1048 if (xfer->resp != 0) { 1049 sbp_show_sdev_info(sdev, 2); 1050 kprintf("%s: resp=%d\n", __func__, xfer->resp); 1051 } 1052 1053 sbp_xfer_free(xfer); 1054 if (sdev->path) { 1055 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1056 sdev->freeze = 0; 1057 } 1058 } 1059 1060 static void 1061 sbp_agent_reset(struct sbp_dev *sdev) 1062 { 1063 struct fw_xfer *xfer; 1064 struct fw_pkt *fp; 1065 1066 SBP_DEBUG(0) 1067 sbp_show_sdev_info(sdev, 2); 1068 kprintf("sbp_agent_reset\n"); 1069 END_DEBUG 1070 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1071 if (xfer == NULL) 1072 return; 1073 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1074 xfer->act.hand = sbp_agent_reset_callback; 1075 else 1076 xfer->act.hand = sbp_do_attach; 1077 fp = &xfer->send.hdr; 1078 fp->mode.wreqq.data = htonl(0xf); 1079 fw_asyreq(xfer->fc, -1, xfer); 1080 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1081 } 1082 1083 static void 1084 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1085 { 1086 struct sbp_dev *sdev; 1087 1088 sdev = (struct sbp_dev *)xfer->sc; 1089 SBP_DEBUG(1) 1090 sbp_show_sdev_info(sdev, 2); 1091 kprintf("sbp_busy_timeout_callback\n"); 1092 END_DEBUG 1093 sbp_xfer_free(xfer); 1094 sbp_agent_reset(sdev); 1095 } 1096 1097 static void 1098 sbp_busy_timeout(struct sbp_dev *sdev) 1099 { 1100 struct fw_pkt *fp; 1101 struct fw_xfer *xfer; 1102 SBP_DEBUG(0) 1103 sbp_show_sdev_info(sdev, 2); 1104 kprintf("sbp_busy_timeout\n"); 1105 END_DEBUG 1106 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1107 1108 xfer->act.hand = sbp_busy_timeout_callback; 1109 fp = &xfer->send.hdr; 1110 fp->mode.wreqq.dest_hi = 0xffff; 1111 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1112 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1113 fw_asyreq(xfer->fc, -1, xfer); 1114 } 1115 1116 static void 1117 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1118 { 1119 struct sbp_dev *sdev; 1120 sdev = (struct sbp_dev *)xfer->sc; 1121 1122 SBP_DEBUG(1) 1123 sbp_show_sdev_info(sdev, 2); 1124 kprintf("%s\n", __func__); 1125 END_DEBUG 1126 if (xfer->resp != 0) { 1127 /* XXX */ 1128 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1129 } 1130 sbp_xfer_free(xfer); 1131 sdev->flags &= ~ORB_POINTER_ACTIVE; 1132 1133 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1134 struct sbp_ocb *ocb; 1135 1136 sdev->flags &= ~ORB_POINTER_NEED; 1137 ocb = STAILQ_FIRST(&sdev->ocbs); 1138 if (ocb != NULL) 1139 sbp_orb_pointer(sdev, ocb); 1140 } 1141 return; 1142 } 1143 1144 static void 1145 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1146 { 1147 struct fw_xfer *xfer; 1148 struct fw_pkt *fp; 1149 SBP_DEBUG(1) 1150 sbp_show_sdev_info(sdev, 2); 1151 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr); 1152 END_DEBUG 1153 1154 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1155 SBP_DEBUG(0) 1156 kprintf("%s: orb pointer active\n", __func__); 1157 END_DEBUG 1158 sdev->flags |= ORB_POINTER_NEED; 1159 return; 1160 } 1161 1162 sdev->flags |= ORB_POINTER_ACTIVE; 1163 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1164 if (xfer == NULL) 1165 return; 1166 xfer->act.hand = sbp_orb_pointer_callback; 1167 1168 fp = &xfer->send.hdr; 1169 fp->mode.wreqb.len = 8; 1170 fp->mode.wreqb.extcode = 0; 1171 xfer->send.payload[0] = 1172 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1173 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr); 1174 1175 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1176 sbp_xfer_free(xfer); 1177 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1178 xpt_done(ocb->ccb); 1179 } 1180 } 1181 1182 #if 0 1183 static void 1184 sbp_cmd_callback(struct fw_xfer *xfer) 1185 { 1186 SBP_DEBUG(1) 1187 struct sbp_dev *sdev; 1188 sdev = (struct sbp_dev *)xfer->sc; 1189 sbp_show_sdev_info(sdev, 2); 1190 kprintf("sbp_cmd_callback\n"); 1191 END_DEBUG 1192 if (xfer->resp != 0) { 1193 /* XXX */ 1194 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1195 } 1196 sbp_xfer_free(xfer); 1197 return; 1198 } 1199 1200 static void 1201 sbp_doorbell(struct sbp_dev *sdev) 1202 { 1203 struct fw_xfer *xfer; 1204 struct fw_pkt *fp; 1205 SBP_DEBUG(1) 1206 sbp_show_sdev_info(sdev, 2); 1207 kprintf("sbp_doorbell\n"); 1208 END_DEBUG 1209 1210 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1211 if (xfer == NULL) 1212 return; 1213 xfer->act.hand = sbp_cmd_callback; 1214 fp = (struct fw_pkt *)xfer->send.buf; 1215 fp->mode.wreqq.data = htonl(0xf); 1216 fw_asyreq(xfer->fc, -1, xfer); 1217 } 1218 #endif 1219 1220 static struct fw_xfer * 1221 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1222 { 1223 struct fw_xfer *xfer; 1224 struct fw_pkt *fp; 1225 struct sbp_target *target; 1226 int new = 0; 1227 1228 target = sdev->target; 1229 crit_enter(); 1230 xfer = STAILQ_FIRST(&target->xferlist); 1231 if (xfer == NULL) { 1232 if (target->n_xfer > 5 /* XXX */) { 1233 kprintf("sbp: no more xfer for this target\n"); 1234 crit_exit(); 1235 return(NULL); 1236 } 1237 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1238 if(xfer == NULL){ 1239 kprintf("sbp: fw_xfer_alloc_buf failed\n"); 1240 crit_exit(); 1241 return NULL; 1242 } 1243 target->n_xfer ++; 1244 if (debug) 1245 kprintf("sbp: alloc %d xfer\n", target->n_xfer); 1246 new = 1; 1247 } else { 1248 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1249 } 1250 crit_exit(); 1251 1252 microtime(&xfer->tv); 1253 1254 if (new) { 1255 xfer->recv.pay_len = 0; 1256 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1257 xfer->fc = sdev->target->sbp->fd.fc; 1258 xfer->retry_req = fw_asybusy; 1259 } 1260 1261 if (tcode == FWTCODE_WREQB) 1262 xfer->send.pay_len = 8; 1263 else 1264 xfer->send.pay_len = 0; 1265 1266 xfer->sc = (caddr_t)sdev; 1267 fp = &xfer->send.hdr; 1268 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1269 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1270 fp->mode.wreqq.tlrt = 0; 1271 fp->mode.wreqq.tcode = tcode; 1272 fp->mode.wreqq.pri = 0; 1273 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1274 1275 return xfer; 1276 1277 } 1278 1279 static void 1280 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1281 { 1282 struct fw_xfer *xfer; 1283 struct fw_pkt *fp; 1284 struct sbp_ocb *ocb; 1285 struct sbp_target *target; 1286 int nid; 1287 1288 target = sdev->target; 1289 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1290 1291 crit_enter(); 1292 if (func == ORB_FUN_RUNQUEUE) { 1293 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1294 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1295 crit_exit(); 1296 return; 1297 } 1298 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1299 goto start; 1300 } 1301 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1302 crit_exit(); 1303 /* XXX */ 1304 return; 1305 } 1306 ocb->flags = OCB_ACT_MGM; 1307 ocb->sdev = sdev; 1308 1309 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1310 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1311 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1312 1313 SBP_DEBUG(0) 1314 sbp_show_sdev_info(sdev, 2); 1315 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]); 1316 END_DEBUG 1317 switch (func) { 1318 case ORB_FUN_LGI: 1319 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1320 ocb->orb[2] = htonl(nid << 16); 1321 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1322 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1323 if (ex_login) 1324 ocb->orb[4] |= htonl(ORB_EXV); 1325 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1326 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1327 break; 1328 case ORB_FUN_ATA: 1329 ocb->orb[0] = htonl((0 << 16) | 0); 1330 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1331 /* fall through */ 1332 case ORB_FUN_RCN: 1333 case ORB_FUN_LGO: 1334 case ORB_FUN_LUR: 1335 case ORB_FUN_RST: 1336 case ORB_FUN_ATS: 1337 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1338 break; 1339 } 1340 1341 if (target->mgm_ocb_cur != NULL) { 1342 /* there is a standing ORB */ 1343 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1344 crit_exit(); 1345 return; 1346 } 1347 start: 1348 target->mgm_ocb_cur = ocb; 1349 crit_exit(); 1350 1351 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1352 sbp_mgm_timeout, (caddr_t)ocb); 1353 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1354 if(xfer == NULL){ 1355 return; 1356 } 1357 xfer->act.hand = sbp_mgm_callback; 1358 1359 fp = &xfer->send.hdr; 1360 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1361 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1362 fp->mode.wreqb.len = 8; 1363 fp->mode.wreqb.extcode = 0; 1364 xfer->send.payload[0] = htonl(nid << 16); 1365 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1366 SBP_DEBUG(0) 1367 sbp_show_sdev_info(sdev, 2); 1368 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr); 1369 END_DEBUG 1370 1371 fw_asyreq(xfer->fc, -1, xfer); 1372 } 1373 1374 static void 1375 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1376 { 1377 struct ccb_scsiio *csio; 1378 1379 csio = &ocb->ccb->csio; 1380 kprintf("%s:%d:%d XPT_SCSI_IO: " 1381 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1382 ", flags: 0x%02x, " 1383 "%db cmd/%db data/%db sense\n", 1384 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1385 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1386 csio->cdb_io.cdb_bytes[0], 1387 csio->cdb_io.cdb_bytes[1], 1388 csio->cdb_io.cdb_bytes[2], 1389 csio->cdb_io.cdb_bytes[3], 1390 csio->cdb_io.cdb_bytes[4], 1391 csio->cdb_io.cdb_bytes[5], 1392 csio->cdb_io.cdb_bytes[6], 1393 csio->cdb_io.cdb_bytes[7], 1394 csio->cdb_io.cdb_bytes[8], 1395 csio->cdb_io.cdb_bytes[9], 1396 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1397 csio->cdb_len, csio->dxfer_len, 1398 csio->sense_len); 1399 } 1400 1401 static void 1402 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1403 { 1404 struct sbp_cmd_status *sbp_cmd_status; 1405 struct scsi_sense_data *sense; 1406 1407 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1408 sense = &ocb->ccb->csio.sense_data; 1409 1410 SBP_DEBUG(0) 1411 sbp_print_scsi_cmd(ocb); 1412 /* XXX need decode status */ 1413 sbp_show_sdev_info(ocb->sdev, 2); 1414 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1415 sbp_cmd_status->status, 1416 sbp_cmd_status->sfmt, 1417 sbp_cmd_status->valid, 1418 sbp_cmd_status->s_key, 1419 sbp_cmd_status->s_code, 1420 sbp_cmd_status->s_qlfr, 1421 sbp_status->len 1422 ); 1423 END_DEBUG 1424 1425 switch (sbp_cmd_status->status) { 1426 case SCSI_STATUS_CHECK_COND: 1427 case SCSI_STATUS_BUSY: 1428 case SCSI_STATUS_CMD_TERMINATED: 1429 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1430 sense->error_code = SSD_CURRENT_ERROR; 1431 }else{ 1432 sense->error_code = SSD_DEFERRED_ERROR; 1433 } 1434 if(sbp_cmd_status->valid) 1435 sense->error_code |= SSD_ERRCODE_VALID; 1436 sense->flags = sbp_cmd_status->s_key; 1437 if(sbp_cmd_status->mark) 1438 sense->flags |= SSD_FILEMARK; 1439 if(sbp_cmd_status->eom) 1440 sense->flags |= SSD_EOM; 1441 if(sbp_cmd_status->ill_len) 1442 sense->flags |= SSD_ILI; 1443 1444 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1445 1446 if (sbp_status->len <= 1) 1447 /* XXX not scsi status. shouldn't be happened */ 1448 sense->extra_len = 0; 1449 else if (sbp_status->len <= 4) 1450 /* add_sense_code(_qual), info, cmd_spec_info */ 1451 sense->extra_len = 6; 1452 else 1453 /* fru, sense_key_spec */ 1454 sense->extra_len = 10; 1455 1456 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1457 1458 sense->add_sense_code = sbp_cmd_status->s_code; 1459 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1460 sense->fru = sbp_cmd_status->fru; 1461 1462 bcopy(&sbp_cmd_status->s_keydep[0], 1463 &sense->sense_key_spec[0], 3); 1464 1465 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1466 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1467 | CAM_AUTOSNS_VALID; 1468 /* 1469 { 1470 u_int8_t j, *tmp; 1471 tmp = sense; 1472 for( j = 0 ; j < 32 ; j+=8){ 1473 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1474 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1475 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1476 } 1477 1478 } 1479 */ 1480 break; 1481 default: 1482 sbp_show_sdev_info(ocb->sdev, 2); 1483 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n", 1484 sbp_cmd_status->status); 1485 } 1486 } 1487 1488 static void 1489 sbp_fix_inq_data(struct sbp_ocb *ocb) 1490 { 1491 union ccb *ccb; 1492 struct sbp_dev *sdev; 1493 struct scsi_inquiry_data *inq; 1494 1495 ccb = ocb->ccb; 1496 sdev = ocb->sdev; 1497 1498 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1499 return; 1500 SBP_DEBUG(1) 1501 sbp_show_sdev_info(sdev, 2); 1502 kprintf("sbp_fix_inq_data\n"); 1503 END_DEBUG 1504 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1505 switch (SID_TYPE(inq)) { 1506 case T_DIRECT: 1507 #if 0 1508 /* 1509 * XXX Convert Direct Access device to RBC. 1510 * I've never seen FireWire DA devices which support READ_6. 1511 */ 1512 if (SID_TYPE(inq) == T_DIRECT) 1513 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1514 #endif 1515 /* fall through */ 1516 case T_RBC: 1517 /* enable tagged queuing */ 1518 if (sbp_tags) 1519 inq->flags |= SID_CmdQue; 1520 else 1521 inq->flags &= ~SID_CmdQue; 1522 /* 1523 * Override vendor/product/revision information. 1524 * Some devices sometimes return strange strings. 1525 */ 1526 #if 1 1527 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1528 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1529 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1530 #endif 1531 break; 1532 } 1533 } 1534 1535 static void 1536 sbp_recv1(struct fw_xfer *xfer) 1537 { 1538 struct fw_pkt *rfp; 1539 #if NEED_RESPONSE 1540 struct fw_pkt *sfp; 1541 #endif 1542 struct sbp_softc *sbp; 1543 struct sbp_dev *sdev; 1544 struct sbp_ocb *ocb; 1545 struct sbp_login_res *login_res = NULL; 1546 struct sbp_status *sbp_status; 1547 struct sbp_target *target; 1548 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1549 u_int32_t addr; 1550 /* 1551 u_int32_t *ld; 1552 ld = xfer->recv.buf; 1553 kprintf("sbp %x %d %d %08x %08x %08x %08x\n", 1554 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1555 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1556 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1557 */ 1558 sbp = (struct sbp_softc *)xfer->sc; 1559 if (xfer->resp != 0){ 1560 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1561 goto done0; 1562 } 1563 if (xfer->recv.payload == NULL){ 1564 kprintf("sbp_recv: xfer->recv.payload == NULL\n"); 1565 goto done0; 1566 } 1567 rfp = &xfer->recv.hdr; 1568 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1569 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1570 goto done0; 1571 } 1572 sbp_status = (struct sbp_status *)xfer->recv.payload; 1573 addr = rfp->mode.wreqb.dest_lo; 1574 SBP_DEBUG(2) 1575 kprintf("received address 0x%x\n", addr); 1576 END_DEBUG 1577 t = SBP_ADDR2TRG(addr); 1578 if (t >= SBP_NUM_TARGETS) { 1579 device_printf(sbp->fd.dev, 1580 "sbp_recv1: invalid target %d\n", t); 1581 goto done0; 1582 } 1583 target = &sbp->targets[t]; 1584 l = SBP_ADDR2LUN(addr); 1585 if (l >= target->num_lun || target->luns[l] == NULL) { 1586 device_printf(sbp->fd.dev, 1587 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1588 goto done0; 1589 } 1590 sdev = target->luns[l]; 1591 1592 ocb = NULL; 1593 switch (sbp_status->src) { 1594 case 0: 1595 case 1: 1596 /* check mgm_ocb_cur first */ 1597 ocb = target->mgm_ocb_cur; 1598 if (ocb != NULL) { 1599 if (OCB_MATCH(ocb, sbp_status)) { 1600 callout_stop(&target->mgm_ocb_timeout); 1601 target->mgm_ocb_cur = NULL; 1602 break; 1603 } 1604 } 1605 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1606 if (ocb == NULL) { 1607 sbp_show_sdev_info(sdev, 2); 1608 kprintf("No ocb(%x) on the queue\n", 1609 ntohl(sbp_status->orb_lo)); 1610 } 1611 break; 1612 case 2: 1613 /* unsolicit */ 1614 sbp_show_sdev_info(sdev, 2); 1615 kprintf("unsolicit status received\n"); 1616 break; 1617 default: 1618 sbp_show_sdev_info(sdev, 2); 1619 kprintf("unknown sbp_status->src\n"); 1620 } 1621 1622 status_valid0 = (sbp_status->src < 2 1623 && sbp_status->resp == ORB_RES_CMPL 1624 && sbp_status->dead == 0); 1625 status_valid = (status_valid0 && sbp_status->status == 0); 1626 1627 if (!status_valid0 || debug > 2){ 1628 int status; 1629 SBP_DEBUG(0) 1630 sbp_show_sdev_info(sdev, 2); 1631 kprintf("ORB status src:%x resp:%x dead:%x" 1632 " len:%x stat:%x orb:%x%08x\n", 1633 sbp_status->src, sbp_status->resp, sbp_status->dead, 1634 sbp_status->len, sbp_status->status, 1635 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1636 END_DEBUG 1637 sbp_show_sdev_info(sdev, 2); 1638 status = sbp_status->status; 1639 switch(sbp_status->resp) { 1640 case 0: 1641 if (status > MAX_ORB_STATUS0) 1642 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1643 else 1644 kprintf("%s\n", orb_status0[status]); 1645 break; 1646 case 1: 1647 kprintf("Obj: %s, Error: %s\n", 1648 orb_status1_object[(status>>6) & 3], 1649 orb_status1_serial_bus_error[status & 0xf]); 1650 break; 1651 case 2: 1652 kprintf("Illegal request\n"); 1653 break; 1654 case 3: 1655 kprintf("Vendor dependent\n"); 1656 break; 1657 default: 1658 kprintf("unknown respose code %d\n", sbp_status->resp); 1659 } 1660 } 1661 1662 /* we have to reset the fetch agent if it's dead */ 1663 if (sbp_status->dead) { 1664 if (sdev->path) { 1665 xpt_freeze_devq(sdev->path, 1); 1666 sdev->freeze ++; 1667 } 1668 reset_agent = 1; 1669 } 1670 1671 if (ocb == NULL) 1672 goto done; 1673 1674 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1675 case ORB_FMT_NOP: 1676 break; 1677 case ORB_FMT_VED: 1678 break; 1679 case ORB_FMT_STD: 1680 switch(ocb->flags) { 1681 case OCB_ACT_MGM: 1682 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1683 reset_agent = 0; 1684 switch(orb_fun) { 1685 case ORB_FUN_LGI: 1686 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1687 login_res = sdev->login; 1688 login_res->len = ntohs(login_res->len); 1689 login_res->id = ntohs(login_res->id); 1690 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1691 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1692 if (status_valid) { 1693 SBP_DEBUG(0) 1694 sbp_show_sdev_info(sdev, 2); 1695 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)); 1696 END_DEBUG 1697 sbp_busy_timeout(sdev); 1698 } else { 1699 /* forgot logout? */ 1700 sbp_show_sdev_info(sdev, 2); 1701 kprintf("login failed\n"); 1702 sdev->status = SBP_DEV_RESET; 1703 } 1704 break; 1705 case ORB_FUN_RCN: 1706 login_res = sdev->login; 1707 if (status_valid) { 1708 SBP_DEBUG(0) 1709 sbp_show_sdev_info(sdev, 2); 1710 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); 1711 END_DEBUG 1712 #if 1 1713 if (sdev->status == SBP_DEV_ATTACHED) 1714 sbp_scan_dev(sdev); 1715 else 1716 sbp_agent_reset(sdev); 1717 #else 1718 sdev->status = SBP_DEV_ATTACHED; 1719 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL); 1720 #endif 1721 } else { 1722 /* reconnection hold time exceed? */ 1723 SBP_DEBUG(0) 1724 sbp_show_sdev_info(sdev, 2); 1725 kprintf("reconnect failed\n"); 1726 END_DEBUG 1727 sbp_login(sdev); 1728 } 1729 break; 1730 case ORB_FUN_LGO: 1731 sdev->status = SBP_DEV_RESET; 1732 break; 1733 case ORB_FUN_RST: 1734 sbp_busy_timeout(sdev); 1735 break; 1736 case ORB_FUN_LUR: 1737 case ORB_FUN_ATA: 1738 case ORB_FUN_ATS: 1739 sbp_agent_reset(sdev); 1740 break; 1741 default: 1742 sbp_show_sdev_info(sdev, 2); 1743 kprintf("unknown function %d\n", orb_fun); 1744 break; 1745 } 1746 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1747 break; 1748 case OCB_ACT_CMD: 1749 sdev->timeout = 0; 1750 if(ocb->ccb != NULL){ 1751 union ccb *ccb; 1752 /* 1753 u_int32_t *ld; 1754 ld = ocb->ccb->csio.data_ptr; 1755 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) 1756 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); 1757 else 1758 kprintf("ptr NULL\n"); 1759 kprintf("len %d\n", sbp_status->len); 1760 */ 1761 ccb = ocb->ccb; 1762 if(sbp_status->len > 1){ 1763 sbp_scsi_status(sbp_status, ocb); 1764 }else{ 1765 if(sbp_status->resp != ORB_RES_CMPL){ 1766 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1767 }else{ 1768 ccb->ccb_h.status = CAM_REQ_CMP; 1769 } 1770 } 1771 /* fix up inq data */ 1772 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1773 sbp_fix_inq_data(ocb); 1774 xpt_done(ccb); 1775 } 1776 break; 1777 default: 1778 break; 1779 } 1780 } 1781 1782 sbp_free_ocb(sdev, ocb); 1783 done: 1784 if (reset_agent) 1785 sbp_agent_reset(sdev); 1786 1787 done0: 1788 xfer->recv.pay_len = SBP_RECV_LEN; 1789 /* The received packet is usually small enough to be stored within 1790 * the buffer. In that case, the controller return ack_complete and 1791 * no respose is necessary. 1792 * 1793 * XXX fwohci.c and firewire.c should inform event_code such as 1794 * ack_complete or ack_pending to upper driver. 1795 */ 1796 #if NEED_RESPONSE 1797 xfer->send.off = 0; 1798 sfp = (struct fw_pkt *)xfer->send.buf; 1799 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1800 xfer->dst = sfp->mode.wres.dst; 1801 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1802 xfer->act.hand = sbp_loginres_callback; 1803 xfer->retry_req = fw_asybusy; 1804 1805 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1806 sfp->mode.wres.tcode = FWTCODE_WRES; 1807 sfp->mode.wres.rtcode = 0; 1808 sfp->mode.wres.pri = 0; 1809 1810 fw_asyreq(xfer->fc, -1, xfer); 1811 #else 1812 /* recycle */ 1813 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1814 #endif 1815 1816 return; 1817 1818 } 1819 1820 static void 1821 sbp_recv(struct fw_xfer *xfer) 1822 { 1823 crit_enter(); 1824 sbp_recv1(xfer); 1825 crit_exit(); 1826 } 1827 /* 1828 * sbp_attach() 1829 */ 1830 static int 1831 sbp_attach(device_t dev) 1832 { 1833 struct sbp_softc *sbp; 1834 struct cam_devq *devq; 1835 struct fw_xfer *xfer; 1836 int i, error; 1837 1838 SBP_DEBUG(0) 1839 kprintf("sbp_attach (cold=%d)\n", cold); 1840 END_DEBUG 1841 1842 #if 0 1843 if (cold) 1844 sbp_cold ++; 1845 #endif 1846 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1847 bzero(sbp, sizeof(struct sbp_softc)); 1848 sbp->fd.dev = dev; 1849 sbp->fd.fc = device_get_ivars(dev); 1850 1851 if (max_speed < 0) 1852 max_speed = sbp->fd.fc->speed; 1853 1854 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat, 1855 /* XXX shoud be 4 for sane backend? */ 1856 /*alignment*/1, 1857 /*boundary*/0, 1858 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1859 /*highaddr*/BUS_SPACE_MAXADDR, 1860 #if defined(__FreeBSD__) 1861 /*filter*/NULL, /*filterarg*/NULL, 1862 #endif 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 fw_xfer *xfer, *next; 1996 int i; 1997 1998 if (target->luns == NULL) 1999 return; 2000 callout_stop(&target->mgm_ocb_timeout); 2001 for (i = 0; i < target->num_lun; i++) 2002 sbp_free_sdev(target->luns[i]); 2003 2004 for (xfer = STAILQ_FIRST(&target->xferlist); 2005 xfer != NULL; xfer = next) { 2006 next = STAILQ_NEXT(xfer, link); 2007 fw_xfer_free_buf(xfer); 2008 } 2009 STAILQ_INIT(&target->xferlist); 2010 kfree(target->luns, M_SBP); 2011 target->num_lun = 0; 2012 target->luns = NULL; 2013 target->fwdev = NULL; 2014 } 2015 2016 static int 2017 sbp_detach(device_t dev) 2018 { 2019 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2020 struct firewire_comm *fc = sbp->fd.fc; 2021 struct fw_xfer *xfer, *next; 2022 int i; 2023 2024 SBP_DEBUG(0) 2025 kprintf("sbp_detach\n"); 2026 END_DEBUG 2027 2028 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2029 sbp_cam_detach_target(&sbp->targets[i]); 2030 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2031 xpt_free_path(sbp->path); 2032 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2033 cam_sim_free(sbp->sim); 2034 2035 sbp_logout_all(sbp); 2036 2037 /* XXX wait for logout completion */ 2038 tsleep(&i, FWPRI, "sbpdtc", hz/2); 2039 2040 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2041 sbp_free_target(&sbp->targets[i]); 2042 2043 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist); 2044 xfer != NULL; xfer = next) { 2045 next = STAILQ_NEXT(xfer, link); 2046 fw_xfer_free_buf(xfer); 2047 } 2048 STAILQ_INIT(&sbp->fwb.xferlist); 2049 fw_bindremove(fc, &sbp->fwb); 2050 2051 bus_dma_tag_destroy(sbp->dmat); 2052 2053 return (0); 2054 } 2055 2056 static void 2057 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2058 { 2059 if (sdev == NULL) 2060 return; 2061 if (sdev->status == SBP_DEV_DEAD) 2062 return; 2063 if (sdev->status == SBP_DEV_RESET) 2064 return; 2065 if (sdev->path) { 2066 xpt_release_devq(sdev->path, 2067 sdev->freeze, TRUE); 2068 sdev->freeze = 0; 2069 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2070 xpt_free_path(sdev->path); 2071 sdev->path = NULL; 2072 } 2073 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2074 } 2075 2076 static void 2077 sbp_cam_detach_target(struct sbp_target *target) 2078 { 2079 int i; 2080 2081 if (target->luns != NULL) { 2082 SBP_DEBUG(0) 2083 kprintf("sbp_detach_target %d\n", target->target_id); 2084 END_DEBUG 2085 callout_stop(&target->scan_callout); 2086 for (i = 0; i < target->num_lun; i++) 2087 sbp_cam_detach_sdev(target->luns[i]); 2088 } 2089 } 2090 2091 static void 2092 sbp_target_reset(struct sbp_dev *sdev, int method) 2093 { 2094 int i; 2095 struct sbp_target *target = sdev->target; 2096 struct sbp_dev *tsdev; 2097 2098 for (i = 0; i < target->num_lun; i++) { 2099 tsdev = target->luns[i]; 2100 if (tsdev == NULL) 2101 continue; 2102 if (tsdev->status == SBP_DEV_DEAD) 2103 continue; 2104 if (tsdev->status == SBP_DEV_RESET) 2105 continue; 2106 xpt_freeze_devq(tsdev->path, 1); 2107 tsdev->freeze ++; 2108 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2109 if (method == 2) 2110 tsdev->status = SBP_DEV_LOGIN; 2111 } 2112 switch(method) { 2113 case 1: 2114 kprintf("target reset\n"); 2115 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2116 break; 2117 case 2: 2118 kprintf("reset start\n"); 2119 sbp_reset_start(sdev); 2120 break; 2121 } 2122 2123 } 2124 2125 static void 2126 sbp_mgm_timeout(void *arg) 2127 { 2128 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2129 struct sbp_dev *sdev = ocb->sdev; 2130 struct sbp_target *target = sdev->target; 2131 2132 sbp_show_sdev_info(sdev, 2); 2133 kprintf("request timeout(mgm orb:0x%08x) ... ", 2134 (u_int32_t)ocb->bus_addr); 2135 target->mgm_ocb_cur = NULL; 2136 sbp_free_ocb(sdev, ocb); 2137 #if 0 2138 /* XXX */ 2139 kprintf("run next request\n"); 2140 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2141 #endif 2142 #if 1 2143 kprintf("reset start\n"); 2144 sbp_reset_start(sdev); 2145 #endif 2146 } 2147 2148 static void 2149 sbp_timeout(void *arg) 2150 { 2151 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2152 struct sbp_dev *sdev = ocb->sdev; 2153 2154 sbp_show_sdev_info(sdev, 2); 2155 kprintf("request timeout(cmd orb:0x%08x) ... ", 2156 (u_int32_t)ocb->bus_addr); 2157 2158 sdev->timeout ++; 2159 switch(sdev->timeout) { 2160 case 1: 2161 kprintf("agent reset\n"); 2162 xpt_freeze_devq(sdev->path, 1); 2163 sdev->freeze ++; 2164 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2165 sbp_agent_reset(sdev); 2166 break; 2167 case 2: 2168 case 3: 2169 sbp_target_reset(sdev, sdev->timeout - 1); 2170 break; 2171 #if 0 2172 default: 2173 /* XXX give up */ 2174 sbp_cam_detach_target(target); 2175 if (target->luns != NULL) 2176 kfree(target->luns, M_SBP); 2177 target->num_lun = 0; 2178 target->luns = NULL; 2179 target->fwdev = NULL; 2180 #endif 2181 } 2182 } 2183 2184 static void 2185 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2186 { 2187 2188 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2189 struct sbp_target *target = NULL; 2190 struct sbp_dev *sdev = NULL; 2191 2192 /* target:lun -> sdev mapping */ 2193 if (sbp != NULL 2194 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2195 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2196 target = &sbp->targets[ccb->ccb_h.target_id]; 2197 if (target->fwdev != NULL 2198 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2199 && ccb->ccb_h.target_lun < target->num_lun) { 2200 sdev = target->luns[ccb->ccb_h.target_lun]; 2201 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2202 sdev->status != SBP_DEV_PROBE) 2203 sdev = NULL; 2204 } 2205 } 2206 2207 SBP_DEBUG(1) 2208 if (sdev == NULL) 2209 kprintf("invalid target %d lun %d\n", 2210 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2211 END_DEBUG 2212 2213 switch (ccb->ccb_h.func_code) { 2214 case XPT_SCSI_IO: 2215 case XPT_RESET_DEV: 2216 case XPT_GET_TRAN_SETTINGS: 2217 case XPT_SET_TRAN_SETTINGS: 2218 case XPT_CALC_GEOMETRY: 2219 if (sdev == NULL) { 2220 SBP_DEBUG(1) 2221 kprintf("%s:%d:%d:func_code 0x%04x: " 2222 "Invalid target (target needed)\n", 2223 device_get_nameunit(sbp->fd.dev), 2224 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2225 ccb->ccb_h.func_code); 2226 END_DEBUG 2227 2228 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2229 xpt_done(ccb); 2230 return; 2231 } 2232 break; 2233 case XPT_PATH_INQ: 2234 case XPT_NOOP: 2235 /* The opcodes sometimes aimed at a target (sc is valid), 2236 * sometimes aimed at the SIM (sc is invalid and target is 2237 * CAM_TARGET_WILDCARD) 2238 */ 2239 if (sbp == NULL && 2240 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2241 SBP_DEBUG(0) 2242 kprintf("%s:%d:%d func_code 0x%04x: " 2243 "Invalid target (no wildcard)\n", 2244 device_get_nameunit(sbp->fd.dev), 2245 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2246 ccb->ccb_h.func_code); 2247 END_DEBUG 2248 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2249 xpt_done(ccb); 2250 return; 2251 } 2252 break; 2253 default: 2254 /* XXX Hm, we should check the input parameters */ 2255 break; 2256 } 2257 2258 switch (ccb->ccb_h.func_code) { 2259 case XPT_SCSI_IO: 2260 { 2261 struct ccb_scsiio *csio; 2262 struct sbp_ocb *ocb; 2263 int speed; 2264 void *cdb; 2265 2266 csio = &ccb->csio; 2267 2268 SBP_DEBUG(2) 2269 kprintf("%s:%d:%d XPT_SCSI_IO: " 2270 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2271 ", flags: 0x%02x, " 2272 "%db cmd/%db data/%db sense\n", 2273 device_get_nameunit(sbp->fd.dev), 2274 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2275 csio->cdb_io.cdb_bytes[0], 2276 csio->cdb_io.cdb_bytes[1], 2277 csio->cdb_io.cdb_bytes[2], 2278 csio->cdb_io.cdb_bytes[3], 2279 csio->cdb_io.cdb_bytes[4], 2280 csio->cdb_io.cdb_bytes[5], 2281 csio->cdb_io.cdb_bytes[6], 2282 csio->cdb_io.cdb_bytes[7], 2283 csio->cdb_io.cdb_bytes[8], 2284 csio->cdb_io.cdb_bytes[9], 2285 ccb->ccb_h.flags & CAM_DIR_MASK, 2286 csio->cdb_len, csio->dxfer_len, 2287 csio->sense_len); 2288 END_DEBUG 2289 if(sdev == NULL){ 2290 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2291 xpt_done(ccb); 2292 return; 2293 } 2294 #if 0 2295 /* if we are in probe stage, pass only probe commands */ 2296 if (sdev->status == SBP_DEV_PROBE) { 2297 char *name; 2298 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2299 kprintf("probe stage, periph name: %s\n", name); 2300 if (strcmp(name, "probe") != 0) { 2301 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2302 xpt_done(ccb); 2303 return; 2304 } 2305 } 2306 #endif 2307 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2308 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2309 xpt_done(ccb); 2310 return; 2311 } 2312 2313 ocb->flags = OCB_ACT_CMD; 2314 ocb->sdev = sdev; 2315 ocb->ccb = ccb; 2316 ccb->ccb_h.ccb_sdev_ptr = sdev; 2317 ocb->orb[0] = htonl(1 << 31); 2318 ocb->orb[1] = 0; 2319 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2320 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2321 speed = min(target->fwdev->speed, max_speed); 2322 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2323 | ORB_CMD_MAXP(speed + 7)); 2324 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2325 ocb->orb[4] |= htonl(ORB_CMD_IN); 2326 } 2327 2328 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2329 kprintf("sbp: CAM_SCATTER_VALID\n"); 2330 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2331 kprintf("sbp: CAM_DATA_PHYS\n"); 2332 2333 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2334 cdb = (void *)csio->cdb_io.cdb_ptr; 2335 else 2336 cdb = (void *)&csio->cdb_io.cdb_bytes; 2337 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2338 /* 2339 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2340 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2341 */ 2342 if (ccb->csio.dxfer_len > 0) { 2343 int error; 2344 2345 crit_enter(); 2346 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2347 /*dma map*/ocb->dmamap, 2348 ccb->csio.data_ptr, 2349 ccb->csio.dxfer_len, 2350 sbp_execute_ocb, 2351 ocb, 2352 /*flags*/0); 2353 crit_exit(); 2354 if (error) 2355 kprintf("sbp: bus_dmamap_load error %d\n", error); 2356 } else 2357 sbp_execute_ocb(ocb, NULL, 0, 0); 2358 break; 2359 } 2360 case XPT_CALC_GEOMETRY: 2361 { 2362 struct ccb_calc_geometry *ccg; 2363 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2364 u_int32_t size_mb; 2365 u_int32_t secs_per_cylinder; 2366 int extended = 1; 2367 #endif 2368 2369 ccg = &ccb->ccg; 2370 if (ccg->block_size == 0) { 2371 kprintf("sbp_action1: block_size is 0.\n"); 2372 ccb->ccb_h.status = CAM_REQ_INVALID; 2373 xpt_done(ccb); 2374 break; 2375 } 2376 SBP_DEBUG(1) 2377 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: Volume size = %ju\n", 2378 device_get_nameunit(sbp->fd.dev), 2379 cam_sim_path(sbp->sim), 2380 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2381 (uintmax_t)ccg->volume_size); 2382 END_DEBUG 2383 2384 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2385 size_mb = ccg->volume_size 2386 / ((1024L * 1024L) / ccg->block_size); 2387 2388 if (size_mb > 1024 && extended) { 2389 ccg->heads = 255; 2390 ccg->secs_per_track = 63; 2391 } else { 2392 ccg->heads = 64; 2393 ccg->secs_per_track = 32; 2394 } 2395 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2396 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2397 ccb->ccb_h.status = CAM_REQ_CMP; 2398 #else 2399 cam_calc_geometry(ccg, /*extended*/1); 2400 #endif 2401 xpt_done(ccb); 2402 break; 2403 } 2404 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2405 { 2406 2407 SBP_DEBUG(1) 2408 kprintf("%s:%d:XPT_RESET_BUS: \n", 2409 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2410 END_DEBUG 2411 2412 ccb->ccb_h.status = CAM_REQ_INVALID; 2413 xpt_done(ccb); 2414 break; 2415 } 2416 case XPT_PATH_INQ: /* Path routing inquiry */ 2417 { 2418 struct ccb_pathinq *cpi = &ccb->cpi; 2419 2420 SBP_DEBUG(1) 2421 kprintf("%s:%d:%d XPT_PATH_INQ:.\n", 2422 device_get_nameunit(sbp->fd.dev), 2423 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2424 END_DEBUG 2425 cpi->version_num = 1; /* XXX??? */ 2426 cpi->hba_inquiry = PI_TAG_ABLE; 2427 cpi->target_sprt = 0; 2428 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2429 cpi->hba_eng_cnt = 0; 2430 cpi->max_target = SBP_NUM_TARGETS - 1; 2431 cpi->max_lun = SBP_NUM_LUNS - 1; 2432 cpi->initiator_id = SBP_INITIATOR; 2433 cpi->bus_id = sim->bus_id; 2434 cpi->base_transfer_speed = 400 * 1000 / 8; 2435 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2436 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2437 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2438 cpi->unit_number = sim->unit_number; 2439 cpi->transport = XPORT_SPI; /* XX should have a FireWire */ 2440 cpi->transport_version = 2; 2441 cpi->protocol = PROTO_SCSI; 2442 cpi->protocol_version = SCSI_REV_2; 2443 cpi->maxio = SBP_MAXPHYS; 2444 2445 cpi->ccb_h.status = CAM_REQ_CMP; 2446 xpt_done(ccb); 2447 break; 2448 } 2449 case XPT_GET_TRAN_SETTINGS: 2450 { 2451 struct ccb_trans_settings *cts = &ccb->cts; 2452 struct ccb_trans_settings_scsi *scsi = 2453 &cts->proto_specific.scsi; 2454 struct ccb_trans_settings_spi *spi = 2455 &cts->xport_specific.spi; 2456 2457 cts->protocol = PROTO_SCSI; 2458 cts->protocol_version = SCSI_REV_2; 2459 cts->transport = XPORT_SPI; /* should have a FireWire */ 2460 cts->transport_version = 2; 2461 spi->valid = CTS_SPI_VALID_DISC; 2462 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 2463 scsi->valid = CTS_SCSI_VALID_TQ; 2464 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2465 SBP_DEBUG(1) 2466 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2467 device_get_nameunit(sbp->fd.dev), 2468 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2469 END_DEBUG 2470 cts->ccb_h.status = CAM_REQ_CMP; 2471 xpt_done(ccb); 2472 break; 2473 } 2474 case XPT_ABORT: 2475 ccb->ccb_h.status = CAM_UA_ABORT; 2476 xpt_done(ccb); 2477 break; 2478 case XPT_SET_TRAN_SETTINGS: 2479 /* XXX */ 2480 default: 2481 ccb->ccb_h.status = CAM_REQ_INVALID; 2482 xpt_done(ccb); 2483 break; 2484 } 2485 return; 2486 } 2487 2488 static void 2489 sbp_action(struct cam_sim *sim, union ccb *ccb) 2490 { 2491 crit_enter(); 2492 sbp_action1(sim, ccb); 2493 crit_exit(); 2494 } 2495 2496 static void 2497 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2498 { 2499 int i; 2500 struct sbp_ocb *ocb; 2501 struct sbp_ocb *prev; 2502 bus_dma_segment_t *s; 2503 2504 if (error) 2505 kprintf("sbp_execute_ocb: error=%d\n", error); 2506 2507 ocb = (struct sbp_ocb *)arg; 2508 2509 SBP_DEBUG(2) 2510 kprintf("sbp_execute_ocb: seg %d", seg); 2511 for (i = 0; i < seg; i++) 2512 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2513 (uintmax_t)segments[i].ds_len); 2514 kprintf("\n"); 2515 END_DEBUG 2516 2517 if (seg == 1) { 2518 /* direct pointer */ 2519 s = &segments[0]; 2520 if (s->ds_len > SBP_SEG_MAX) 2521 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2522 ocb->orb[3] = htonl(s->ds_addr); 2523 ocb->orb[4] |= htonl(s->ds_len); 2524 } else if(seg > 1) { 2525 /* page table */ 2526 for (i = 0; i < seg; i++) { 2527 s = &segments[i]; 2528 SBP_DEBUG(0) 2529 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2530 if (s->ds_len < 16) 2531 kprintf("sbp_execute_ocb: warning, " 2532 "segment length(%zd) is less than 16." 2533 "(seg=%d/%jd)\n", 2534 (size_t)s->ds_len, i+1, (intmax_t)seg); 2535 END_DEBUG 2536 if (s->ds_len > SBP_SEG_MAX) 2537 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2538 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2539 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2540 } 2541 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2542 } 2543 2544 if (seg > 0) 2545 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2546 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2547 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2548 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2549 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2550 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2551 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2552 sbp_orb_pointer(ocb->sdev, ocb); 2553 } 2554 } 2555 2556 static void 2557 sbp_poll(struct cam_sim *sim) 2558 { 2559 struct sbp_softc *sbp; 2560 struct firewire_comm *fc; 2561 2562 sbp = (struct sbp_softc *)sim->softc; 2563 fc = sbp->fd.fc; 2564 2565 fc->poll(fc, 0, -1); 2566 2567 return; 2568 } 2569 2570 static struct sbp_ocb * 2571 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2572 { 2573 struct sbp_ocb *ocb; 2574 struct sbp_ocb *next; 2575 int order = 0; 2576 2577 crit_enter(); 2578 2579 SBP_DEBUG(1) 2580 sbp_show_sdev_info(sdev, 2); 2581 kprintf("%s: 0x%08x src %d\n", 2582 __func__, ntohl(sbp_status->orb_lo), sbp_status->src); 2583 END_DEBUG 2584 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2585 next = STAILQ_NEXT(ocb, ocb); 2586 if (OCB_MATCH(ocb, sbp_status)) { 2587 /* found */ 2588 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2589 if (ocb->ccb != NULL) 2590 callout_stop(ocb->ccb->ccb_h.timeout_ch); 2591 if (ntohl(ocb->orb[4]) & 0xffff) { 2592 bus_dmamap_sync(sdev->target->sbp->dmat, 2593 ocb->dmamap, 2594 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2595 BUS_DMASYNC_POSTREAD : 2596 BUS_DMASYNC_POSTWRITE); 2597 bus_dmamap_unload(sdev->target->sbp->dmat, 2598 ocb->dmamap); 2599 } 2600 if (sbp_status->src == SRC_NO_NEXT) { 2601 if (next != NULL) 2602 sbp_orb_pointer(sdev, next); 2603 else if (order > 0) { 2604 /* 2605 * Unordered execution 2606 * We need to send pointer for 2607 * next ORB 2608 */ 2609 sdev->flags |= ORB_LINK_DEAD; 2610 } 2611 } 2612 break; 2613 } else 2614 order ++; 2615 } 2616 crit_exit(); 2617 SBP_DEBUG(0) 2618 if (ocb && order > 0) { 2619 sbp_show_sdev_info(sdev, 2); 2620 kprintf("unordered execution order:%d\n", order); 2621 } 2622 END_DEBUG 2623 return (ocb); 2624 } 2625 2626 static struct sbp_ocb * 2627 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2628 { 2629 struct sbp_ocb *prev; 2630 2631 crit_enter(); 2632 2633 SBP_DEBUG(1) 2634 sbp_show_sdev_info(sdev, 2); 2635 kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr); 2636 END_DEBUG 2637 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); 2638 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); 2639 2640 if (ocb->ccb != NULL) 2641 callout_reset(ocb->ccb->ccb_h.timeout_ch, 2642 (ocb->ccb->ccb_h.timeout * hz) / 1000, 2643 sbp_timeout, ocb); 2644 2645 if (prev != NULL) { 2646 SBP_DEBUG(2) 2647 kprintf("linking chain 0x%jx -> 0x%jx\n", 2648 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr); 2649 END_DEBUG 2650 prev->orb[1] = htonl(ocb->bus_addr); 2651 prev->orb[0] = 0; 2652 } 2653 crit_exit(); 2654 2655 return prev; 2656 } 2657 2658 static struct sbp_ocb * 2659 sbp_get_ocb(struct sbp_dev *sdev) 2660 { 2661 struct sbp_ocb *ocb; 2662 2663 crit_enter(); 2664 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2665 if (ocb == NULL) { 2666 kprintf("ocb shortage!!!\n"); 2667 crit_exit(); 2668 return NULL; 2669 } 2670 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2671 crit_exit(); 2672 ocb->ccb = NULL; 2673 return (ocb); 2674 } 2675 2676 static void 2677 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2678 { 2679 ocb->flags = 0; 2680 ocb->ccb = NULL; 2681 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2682 } 2683 2684 static void 2685 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2686 { 2687 struct sbp_dev *sdev; 2688 2689 sdev = ocb->sdev; 2690 SBP_DEBUG(0) 2691 sbp_show_sdev_info(sdev, 2); 2692 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr); 2693 END_DEBUG 2694 SBP_DEBUG(1) 2695 if (ocb->ccb != NULL) 2696 sbp_print_scsi_cmd(ocb); 2697 END_DEBUG 2698 if (ntohl(ocb->orb[4]) & 0xffff) { 2699 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2700 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2701 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2702 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2703 } 2704 if (ocb->ccb != NULL) { 2705 callout_stop(ocb->ccb->ccb_h.timeout_ch); 2706 ocb->ccb->ccb_h.status = status; 2707 xpt_done(ocb->ccb); 2708 } 2709 sbp_free_ocb(sdev, ocb); 2710 } 2711 2712 static void 2713 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2714 { 2715 struct sbp_ocb *ocb, *next; 2716 STAILQ_HEAD(, sbp_ocb) temp; 2717 2718 crit_enter(); 2719 STAILQ_INIT(&temp); 2720 STAILQ_CONCAT(&temp, &sdev->ocbs); 2721 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2722 next = STAILQ_NEXT(ocb, ocb); 2723 sbp_abort_ocb(ocb, status); 2724 } 2725 crit_exit(); 2726 } 2727 2728 static devclass_t sbp_devclass; 2729 2730 /* 2731 * Because sbp is a static device that always exists under any attached 2732 * firewire device, and not scanned by the firewire device, we need an 2733 * identify function to install the device. For our sanity we want 2734 * the sbp device to have the same unit number as the fireweire device. 2735 */ 2736 2737 static device_method_t sbp_methods[] = { 2738 /* device interface */ 2739 DEVMETHOD(device_identify, bus_generic_identify_sameunit), 2740 DEVMETHOD(device_probe, sbp_probe), 2741 DEVMETHOD(device_attach, sbp_attach), 2742 DEVMETHOD(device_detach, sbp_detach), 2743 DEVMETHOD(device_shutdown, sbp_shutdown), 2744 2745 DEVMETHOD_END 2746 }; 2747 2748 static driver_t sbp_driver = { 2749 "sbp", 2750 sbp_methods, 2751 sizeof(struct sbp_softc), 2752 }; 2753 2754 DECLARE_DUMMY_MODULE(sbp); 2755 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, NULL, NULL); 2756 MODULE_VERSION(sbp, 1); 2757 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2758 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2759