1 /* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/firewire/sbp.c,v 1.74 2004/01/08 14:58:09 simokawa Exp $ 35 * $DragonFly: src/sys/dev/disk/sbp/sbp.c,v 1.22 2006/12/22 23:26:16 swildner Exp $ 36 * 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/conf.h> 42 #include <sys/module.h> 43 #include <sys/bus.h> 44 #include <sys/kernel.h> 45 #include <sys/sysctl.h> 46 #include <sys/malloc.h> 47 48 #include <sys/devicestat.h> /* for struct devstat */ 49 #include <sys/thread2.h> 50 51 #include <bus/cam/cam.h> 52 #include <bus/cam/cam_ccb.h> 53 #include <bus/cam/cam_sim.h> 54 #include <bus/cam/cam_xpt_sim.h> 55 #include <bus/cam/cam_debug.h> 56 #include <bus/cam/cam_periph.h> 57 #include <bus/cam/scsi/scsi_all.h> 58 59 #include <bus/firewire/firewire.h> 60 #include <bus/firewire/firewirereg.h> 61 #include <bus/firewire/fwdma.h> 62 #include <bus/firewire/iec13213.h> 63 #include "sbp.h" 64 65 #define ccb_sdev_ptr spriv_ptr0 66 #define ccb_sbp_ptr spriv_ptr1 67 68 #define SBP_NUM_TARGETS 8 /* MAX 64 */ 69 /* 70 * Scan_bus doesn't work for more than 8 LUNs 71 * because of CAM_SCSI2_MAXLUN in cam_xpt.c 72 */ 73 #define SBP_NUM_LUNS 64 74 #define SBP_DMA_SIZE PAGE_SIZE 75 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) 76 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) 77 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) 78 79 /* 80 * STATUS FIFO addressing 81 * bit 82 * ----------------------- 83 * 0- 1( 2): 0 (alingment) 84 * 2- 7( 6): target 85 * 8-15( 8): lun 86 * 16-31( 8): reserved 87 * 32-47(16): SBP_BIND_HI 88 * 48-64(16): bus_id, node_id 89 */ 90 #define SBP_BIND_HI 0x1 91 #define SBP_DEV2ADDR(t, l) \ 92 (((u_int64_t)SBP_BIND_HI << 32) \ 93 | (((l) & 0xff) << 8) \ 94 | (((t) & 0x3f) << 2)) 95 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) 96 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) 97 #define SBP_INITIATOR 7 98 99 static char *orb_fun_name[] = { 100 ORB_FUN_NAMES 101 }; 102 103 static int debug = 0; 104 static int auto_login = 1; 105 static int max_speed = -1; 106 static int sbp_cold = 1; 107 static int ex_login = 1; 108 static int login_delay = 1000; /* msec */ 109 static int scan_delay = 500; /* msec */ 110 static int sbp_tags = 0; 111 112 SYSCTL_DECL(_hw_firewire); 113 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); 114 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, 115 "SBP debug flag"); 116 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, 117 "SBP perform login automatically"); 118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, 119 "SBP transfer max speed"); 120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW, 121 &ex_login, 0, "SBP transfer max speed"); 122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW, 123 &login_delay, 0, "SBP login delay in msec"); 124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW, 125 &scan_delay, 0, "SBP scan delay in msec"); 126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0, 127 "SBP tagged queuing support"); 128 129 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login); 130 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed); 131 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login); 132 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay); 133 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay); 134 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags); 135 136 #define NEED_RESPONSE 0 137 138 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) 139 #ifdef __sparc64__ /* iommu */ 140 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX) 141 #else 142 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE) 143 #endif 144 struct sbp_ocb { 145 STAILQ_ENTRY(sbp_ocb) ocb; 146 union ccb *ccb; 147 bus_addr_t bus_addr; 148 u_int32_t orb[8]; 149 #define IND_PTR_OFFSET (8*sizeof(u_int32_t)) 150 struct ind_ptr ind_ptr[SBP_IND_MAX]; 151 struct sbp_dev *sdev; 152 int flags; /* XXX should be removed */ 153 bus_dmamap_t dmamap; 154 }; 155 156 #define OCB_ACT_MGM 0 157 #define OCB_ACT_CMD 1 158 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) 159 160 struct sbp_dev{ 161 #define SBP_DEV_RESET 0 /* accept login */ 162 #define SBP_DEV_LOGIN 1 /* to login */ 163 #if 0 164 #define SBP_DEV_RECONN 2 /* to reconnect */ 165 #endif 166 #define SBP_DEV_TOATTACH 3 /* to attach */ 167 #define SBP_DEV_PROBE 4 /* scan lun */ 168 #define SBP_DEV_ATTACHED 5 /* in operation */ 169 #define SBP_DEV_DEAD 6 /* unavailable unit */ 170 #define SBP_DEV_RETRY 7 /* unavailable unit */ 171 u_int8_t status:4, 172 timeout:4; 173 u_int8_t type; 174 u_int16_t lun_id; 175 u_int16_t freeze; 176 #define ORB_LINK_DEAD (1 << 0) 177 #define VALID_LUN (1 << 1) 178 #define ORB_POINTER_ACTIVE (1 << 2) 179 #define ORB_POINTER_NEED (1 << 3) 180 u_int16_t flags; 181 struct cam_path *path; 182 struct sbp_target *target; 183 struct fwdma_alloc dma; 184 struct sbp_login_res *login; 185 struct callout login_callout; 186 struct sbp_ocb *ocb; 187 STAILQ_HEAD(, sbp_ocb) ocbs; 188 STAILQ_HEAD(, sbp_ocb) free_ocbs; 189 char vendor[32]; 190 char product[32]; 191 char revision[10]; 192 }; 193 194 struct sbp_target { 195 int target_id; 196 int num_lun; 197 struct sbp_dev **luns; 198 struct sbp_softc *sbp; 199 struct fw_device *fwdev; 200 u_int32_t mgm_hi, mgm_lo; 201 struct sbp_ocb *mgm_ocb_cur; 202 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; 203 struct callout mgm_ocb_timeout; 204 struct callout scan_callout; 205 STAILQ_HEAD(, fw_xfer) xferlist; 206 int n_xfer; 207 }; 208 209 struct sbp_softc { 210 struct firewire_dev_comm fd; 211 struct cam_sim *sim; 212 struct cam_path *path; 213 struct sbp_target targets[SBP_NUM_TARGETS]; 214 struct fw_bind fwb; 215 bus_dma_tag_t dmat; 216 struct timeval last_busreset; 217 #define SIMQ_FREEZED 1 218 int flags; 219 }; 220 221 static void sbp_post_explore (void *); 222 static void sbp_recv (struct fw_xfer *); 223 static void sbp_mgm_callback (struct fw_xfer *); 224 #if 0 225 static void sbp_cmd_callback (struct fw_xfer *); 226 #endif 227 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *); 228 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int); 229 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *); 230 static void sbp_abort_ocb (struct sbp_ocb *, int); 231 static void sbp_abort_all_ocbs (struct sbp_dev *, int); 232 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int); 233 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *); 234 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *); 235 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *); 236 static void sbp_cam_detach_sdev(struct sbp_dev *); 237 static void sbp_free_sdev(struct sbp_dev *); 238 static void sbp_cam_detach_target (struct sbp_target *); 239 static void sbp_free_target (struct sbp_target *); 240 static void sbp_mgm_timeout (void *arg); 241 static void sbp_timeout (void *arg); 242 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *); 243 244 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); 245 246 /* cam related functions */ 247 static void sbp_action(struct cam_sim *sim, union ccb *ccb); 248 static void sbp_poll(struct cam_sim *sim); 249 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); 250 static void sbp_cam_scan_target(void *arg); 251 252 static char *orb_status0[] = { 253 /* 0 */ "No additional information to report", 254 /* 1 */ "Request type not supported", 255 /* 2 */ "Speed not supported", 256 /* 3 */ "Page size not supported", 257 /* 4 */ "Access denied", 258 /* 5 */ "Logical unit not supported", 259 /* 6 */ "Maximum payload too small", 260 /* 7 */ "Reserved for future standardization", 261 /* 8 */ "Resources unavailable", 262 /* 9 */ "Function rejected", 263 /* A */ "Login ID not recognized", 264 /* B */ "Dummy ORB completed", 265 /* C */ "Request aborted", 266 /* FF */ "Unspecified error" 267 #define MAX_ORB_STATUS0 0xd 268 }; 269 270 static char *orb_status1_object[] = { 271 /* 0 */ "Operation request block (ORB)", 272 /* 1 */ "Data buffer", 273 /* 2 */ "Page table", 274 /* 3 */ "Unable to specify" 275 }; 276 277 static char *orb_status1_serial_bus_error[] = { 278 /* 0 */ "Missing acknowledge", 279 /* 1 */ "Reserved; not to be used", 280 /* 2 */ "Time-out error", 281 /* 3 */ "Reserved; not to be used", 282 /* 4 */ "Busy retry limit exceeded(X)", 283 /* 5 */ "Busy retry limit exceeded(A)", 284 /* 6 */ "Busy retry limit exceeded(B)", 285 /* 7 */ "Reserved for future standardization", 286 /* 8 */ "Reserved for future standardization", 287 /* 9 */ "Reserved for future standardization", 288 /* A */ "Reserved for future standardization", 289 /* B */ "Tardy retry limit exceeded", 290 /* C */ "Conflict error", 291 /* D */ "Data error", 292 /* E */ "Type error", 293 /* F */ "Address error" 294 }; 295 296 /* 297 * sbp_probe() 298 */ 299 static int 300 sbp_probe(device_t dev) 301 { 302 device_t pa; 303 304 SBP_DEBUG(0) 305 kprintf("sbp_probe\n"); 306 END_DEBUG 307 308 pa = device_get_parent(dev); 309 if(device_get_unit(dev) != device_get_unit(pa)){ 310 return(ENXIO); 311 } 312 313 device_set_desc(dev, "SBP-2/SCSI over FireWire"); 314 315 if (bootverbose) 316 debug = bootverbose; 317 return (0); 318 } 319 320 static void 321 sbp_show_sdev_info(struct sbp_dev *sdev, int new) 322 { 323 struct fw_device *fwdev; 324 325 kprintf("%s:%d:%d ", 326 device_get_nameunit(sdev->target->sbp->fd.dev), 327 sdev->target->target_id, 328 sdev->lun_id 329 ); 330 if (new == 2) { 331 return; 332 } 333 fwdev = sdev->target->fwdev; 334 kprintf("ordered:%d type:%d EUI:%08x%08x node:%d " 335 "speed:%d maxrec:%d", 336 (sdev->type & 0x40) >> 6, 337 (sdev->type & 0x1f), 338 fwdev->eui.hi, 339 fwdev->eui.lo, 340 fwdev->dst, 341 fwdev->speed, 342 fwdev->maxrec 343 ); 344 if (new) 345 kprintf(" new!\n"); 346 else 347 kprintf("\n"); 348 sbp_show_sdev_info(sdev, 2); 349 kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision); 350 } 351 352 static struct { 353 int bus; 354 int target; 355 struct fw_eui64 eui; 356 } wired[] = { 357 /* Bus Target EUI64 */ 358 #if 0 359 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ 360 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ 361 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ 362 #endif 363 {-1, -1, {0,0}} 364 }; 365 366 static int 367 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) 368 { 369 int bus, i, target=-1; 370 char w[SBP_NUM_TARGETS]; 371 372 bzero(w, sizeof(w)); 373 bus = device_get_unit(sbp->fd.dev); 374 375 /* XXX wired-down configuration should be gotten from 376 tunable or device hint */ 377 for (i = 0; wired[i].bus >= 0; i ++) { 378 if (wired[i].bus == bus) { 379 w[wired[i].target] = 1; 380 if (wired[i].eui.hi == fwdev->eui.hi && 381 wired[i].eui.lo == fwdev->eui.lo) 382 target = wired[i].target; 383 } 384 } 385 if (target >= 0) { 386 if(target < SBP_NUM_TARGETS && 387 sbp->targets[target].fwdev == NULL) 388 return(target); 389 device_printf(sbp->fd.dev, 390 "target %d is not free for %08x:%08x\n", 391 target, fwdev->eui.hi, fwdev->eui.lo); 392 target = -1; 393 } 394 /* non-wired target */ 395 for (i = 0; i < SBP_NUM_TARGETS; i ++) 396 if (sbp->targets[i].fwdev == NULL && w[i] == 0) { 397 target = i; 398 break; 399 } 400 401 return target; 402 } 403 404 static void 405 sbp_alloc_lun(struct sbp_target *target) 406 { 407 struct crom_context cc; 408 struct csrreg *reg; 409 struct sbp_dev *sdev, **newluns; 410 struct sbp_softc *sbp; 411 int maxlun, lun, i; 412 413 sbp = target->sbp; 414 crom_init_context(&cc, target->fwdev->csrrom); 415 /* XXX shoud parse appropriate unit directories only */ 416 maxlun = -1; 417 while (cc.depth >= 0) { 418 reg = crom_search_key(&cc, CROM_LUN); 419 if (reg == NULL) 420 break; 421 lun = reg->val & 0xffff; 422 SBP_DEBUG(0) 423 kprintf("target %d lun %d found\n", target->target_id, lun); 424 END_DEBUG 425 if (maxlun < lun) 426 maxlun = lun; 427 crom_next(&cc); 428 } 429 if (maxlun < 0) 430 kprintf("%s:%d no LUN found\n", 431 device_get_nameunit(target->sbp->fd.dev), 432 target->target_id); 433 434 maxlun ++; 435 if (maxlun >= SBP_NUM_LUNS) 436 maxlun = SBP_NUM_LUNS; 437 438 /* Invalidiate stale devices */ 439 for (lun = 0; lun < target->num_lun; lun ++) { 440 sdev = target->luns[lun]; 441 if (sdev == NULL) 442 continue; 443 sdev->flags &= ~VALID_LUN; 444 if (lun >= maxlun) { 445 /* lost device */ 446 sbp_cam_detach_sdev(sdev); 447 sbp_free_sdev(sdev); 448 } 449 } 450 451 /* Reallocate */ 452 if (maxlun != target->num_lun) { 453 /* 454 * note: krealloc() does not support M_ZERO. We must zero 455 * the extended region manually. 456 */ 457 newluns = krealloc(target->luns, 458 sizeof(struct sbp_dev *) * maxlun, 459 M_SBP, M_WAITOK); 460 461 if (maxlun > target->num_lun) { 462 bzero(&newluns[target->num_lun], 463 sizeof(struct sbp_dev *) * 464 (maxlun - target->num_lun)); 465 } 466 target->luns = newluns; 467 target->num_lun = maxlun; 468 } 469 470 crom_init_context(&cc, target->fwdev->csrrom); 471 while (cc.depth >= 0) { 472 int new = 0; 473 474 reg = crom_search_key(&cc, CROM_LUN); 475 if (reg == NULL) 476 break; 477 lun = reg->val & 0xffff; 478 if (lun >= SBP_NUM_LUNS) { 479 kprintf("too large lun %d\n", lun); 480 goto next; 481 } 482 483 sdev = target->luns[lun]; 484 if (sdev == NULL) { 485 sdev = kmalloc(sizeof(struct sbp_dev), 486 M_SBP, M_WAITOK | M_ZERO); 487 target->luns[lun] = sdev; 488 sdev->lun_id = lun; 489 sdev->target = target; 490 STAILQ_INIT(&sdev->ocbs); 491 CALLOUT_INIT(&sdev->login_callout); 492 sdev->status = SBP_DEV_RESET; 493 new = 1; 494 } 495 sdev->flags |= VALID_LUN; 496 sdev->type = (reg->val & 0xff0000) >> 16; 497 498 if (new == 0) 499 goto next; 500 501 fwdma_malloc(sbp->fd.fc, 502 /* alignment */ sizeof(u_int32_t), 503 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT); 504 if (sdev->dma.v_addr == NULL) { 505 kprintf("%s: dma space allocation failed\n", 506 __func__); 507 kfree(sdev, M_SBP); 508 target->luns[lun] = NULL; 509 goto next; 510 } 511 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; 512 sdev->ocb = (struct sbp_ocb *) 513 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); 514 bzero((char *)sdev->ocb, 515 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN); 516 517 STAILQ_INIT(&sdev->free_ocbs); 518 for (i = 0; i < SBP_QUEUE_LEN; i++) { 519 struct sbp_ocb *ocb; 520 ocb = &sdev->ocb[i]; 521 ocb->bus_addr = sdev->dma.bus_addr 522 + SBP_LOGIN_SIZE 523 + sizeof(struct sbp_ocb) * i 524 + offsetof(struct sbp_ocb, orb[0]); 525 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { 526 kprintf("sbp_attach: cannot create dmamap\n"); 527 /* XXX */ 528 goto next; 529 } 530 sbp_free_ocb(sdev, ocb); 531 } 532 next: 533 crom_next(&cc); 534 } 535 536 for (lun = 0; lun < target->num_lun; lun ++) { 537 sdev = target->luns[lun]; 538 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) { 539 sbp_cam_detach_sdev(sdev); 540 sbp_free_sdev(sdev); 541 target->luns[lun] = NULL; 542 } 543 } 544 } 545 546 static struct sbp_target * 547 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) 548 { 549 int i; 550 struct sbp_target *target; 551 struct crom_context cc; 552 struct csrreg *reg; 553 554 SBP_DEBUG(1) 555 kprintf("sbp_alloc_target\n"); 556 END_DEBUG 557 i = sbp_new_target(sbp, fwdev); 558 if (i < 0) { 559 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n"); 560 return NULL; 561 } 562 /* new target */ 563 target = &sbp->targets[i]; 564 target->sbp = sbp; 565 target->fwdev = fwdev; 566 target->target_id = i; 567 /* XXX we may want to reload mgm port after each bus reset */ 568 /* XXX there might be multiple management agents */ 569 crom_init_context(&cc, target->fwdev->csrrom); 570 reg = crom_search_key(&cc, CROM_MGM); 571 if (reg == NULL || reg->val == 0) { 572 kprintf("NULL management address\n"); 573 target->fwdev = NULL; 574 return NULL; 575 } 576 target->mgm_hi = 0xffff; 577 target->mgm_lo = 0xf0000000 | (reg->val << 2); 578 target->mgm_ocb_cur = NULL; 579 SBP_DEBUG(1) 580 kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo); 581 END_DEBUG 582 STAILQ_INIT(&target->xferlist); 583 target->n_xfer = 0; 584 STAILQ_INIT(&target->mgm_ocb_queue); 585 CALLOUT_INIT(&target->mgm_ocb_timeout); 586 CALLOUT_INIT(&target->scan_callout); 587 588 target->luns = NULL; 589 target->num_lun = 0; 590 return target; 591 } 592 593 static void 594 sbp_probe_lun(struct sbp_dev *sdev) 595 { 596 struct fw_device *fwdev; 597 struct crom_context c, *cc = &c; 598 struct csrreg *reg; 599 600 bzero(sdev->vendor, sizeof(sdev->vendor)); 601 bzero(sdev->product, sizeof(sdev->product)); 602 603 fwdev = sdev->target->fwdev; 604 crom_init_context(cc, fwdev->csrrom); 605 /* get vendor string */ 606 crom_search_key(cc, CSRKEY_VENDOR); 607 crom_next(cc); 608 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor)); 609 /* skip to the unit directory for SBP-2 */ 610 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) { 611 if (reg->val == CSRVAL_T10SBP2) 612 break; 613 crom_next(cc); 614 } 615 /* get firmware revision */ 616 reg = crom_search_key(cc, CSRKEY_FIRM_VER); 617 if (reg != NULL) 618 ksnprintf(sdev->revision, sizeof(sdev->revision), 619 "%06x", reg->val); 620 /* get product string */ 621 crom_search_key(cc, CSRKEY_MODEL); 622 crom_next(cc); 623 crom_parse_text(cc, sdev->product, sizeof(sdev->product)); 624 } 625 626 static void 627 sbp_login_callout(void *arg) 628 { 629 struct sbp_dev *sdev = (struct sbp_dev *)arg; 630 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); 631 } 632 633 static void 634 sbp_login(struct sbp_dev *sdev) 635 { 636 struct timeval delta; 637 struct timeval t; 638 int ticks = 0; 639 640 microtime(&delta); 641 timevalsub(&delta, &sdev->target->sbp->last_busreset); 642 t.tv_sec = login_delay / 1000; 643 t.tv_usec = (login_delay % 1000) * 1000; 644 timevalsub(&t, &delta); 645 if (t.tv_sec >= 0 && t.tv_usec > 0) 646 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; 647 SBP_DEBUG(0) 648 kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__, 649 t.tv_sec, t.tv_usec, ticks); 650 END_DEBUG 651 callout_reset(&sdev->login_callout, ticks, 652 sbp_login_callout, (void *)(sdev)); 653 } 654 655 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ 656 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) 657 658 static void 659 sbp_probe_target(void *arg) 660 { 661 struct sbp_target *target = (struct sbp_target *)arg; 662 struct sbp_softc *sbp; 663 struct sbp_dev *sdev; 664 struct firewire_comm *fc; 665 int i, alive; 666 667 alive = SBP_FWDEV_ALIVE(target->fwdev); 668 SBP_DEBUG(1) 669 kprintf("sbp_probe_target %d\n", target->target_id); 670 if (!alive) 671 kprintf("not alive\n"); 672 END_DEBUG 673 674 sbp = target->sbp; 675 fc = target->sbp->fd.fc; 676 sbp_alloc_lun(target); 677 678 /* XXX untimeout mgm_ocb and dequeue */ 679 for (i=0; i < target->num_lun; i++) { 680 sdev = target->luns[i]; 681 if (sdev == NULL) 682 continue; 683 if (alive && (sdev->status != SBP_DEV_DEAD)) { 684 if (sdev->path != NULL) { 685 xpt_freeze_devq(sdev->path, 1); 686 sdev->freeze ++; 687 } 688 sbp_probe_lun(sdev); 689 SBP_DEBUG(0) 690 sbp_show_sdev_info(sdev, 691 (sdev->status == SBP_DEV_RESET)); 692 END_DEBUG 693 694 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 695 switch (sdev->status) { 696 case SBP_DEV_RESET: 697 /* new or revived target */ 698 if (auto_login) 699 sbp_login(sdev); 700 break; 701 case SBP_DEV_TOATTACH: 702 case SBP_DEV_PROBE: 703 case SBP_DEV_ATTACHED: 704 case SBP_DEV_RETRY: 705 default: 706 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); 707 break; 708 } 709 } else { 710 switch (sdev->status) { 711 case SBP_DEV_ATTACHED: 712 SBP_DEBUG(0) 713 /* the device has gone */ 714 sbp_show_sdev_info(sdev, 2); 715 kprintf("lost target\n"); 716 END_DEBUG 717 if (sdev->path) { 718 xpt_freeze_devq(sdev->path, 1); 719 sdev->freeze ++; 720 } 721 sdev->status = SBP_DEV_RETRY; 722 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); 723 break; 724 case SBP_DEV_PROBE: 725 case SBP_DEV_TOATTACH: 726 sdev->status = SBP_DEV_RESET; 727 break; 728 case SBP_DEV_RETRY: 729 case SBP_DEV_RESET: 730 case SBP_DEV_DEAD: 731 break; 732 } 733 } 734 } 735 } 736 737 static void 738 sbp_post_busreset(void *arg) 739 { 740 struct sbp_softc *sbp; 741 742 sbp = (struct sbp_softc *)arg; 743 SBP_DEBUG(0) 744 kprintf("sbp_post_busreset\n"); 745 END_DEBUG 746 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) { 747 xpt_freeze_simq(sbp->sim, /*count*/1); 748 sbp->sim->flags |= SIMQ_FREEZED; 749 } 750 microtime(&sbp->last_busreset); 751 } 752 753 static void 754 sbp_post_explore(void *arg) 755 { 756 struct sbp_softc *sbp = (struct sbp_softc *)arg; 757 struct sbp_target *target; 758 struct fw_device *fwdev; 759 int i, alive; 760 761 SBP_DEBUG(0) 762 kprintf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); 763 END_DEBUG 764 if (sbp_cold > 0) 765 sbp_cold --; 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 int resp; 896 897 sdev = (struct sbp_dev *)xfer->sc; 898 899 SBP_DEBUG(1) 900 sbp_show_sdev_info(sdev, 2); 901 kprintf("sbp_mgm_callback\n"); 902 END_DEBUG 903 resp = xfer->resp; 904 sbp_xfer_free(xfer); 905 #if 0 906 if (resp != 0) { 907 sbp_show_sdev_info(sdev, 2); 908 kprintf("management ORB failed(%d) ... RESET_START\n", resp); 909 sbp_reset_start(sdev); 910 } 911 #endif 912 return; 913 } 914 915 static struct sbp_dev * 916 sbp_next_dev(struct sbp_target *target, int lun) 917 { 918 struct sbp_dev **sdevp; 919 int i; 920 921 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun; 922 i++, sdevp++) 923 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE) 924 return(*sdevp); 925 return(NULL); 926 } 927 928 #define SCAN_PRI 1 929 static void 930 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb) 931 { 932 struct sbp_target *target; 933 struct sbp_dev *sdev; 934 935 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; 936 target = sdev->target; 937 SBP_DEBUG(0) 938 sbp_show_sdev_info(sdev, 2); 939 kprintf("sbp_cam_scan_lun\n"); 940 END_DEBUG 941 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 942 sdev->status = SBP_DEV_ATTACHED; 943 } else { 944 sbp_show_sdev_info(sdev, 2); 945 kprintf("scan failed\n"); 946 } 947 sdev = sbp_next_dev(target, sdev->lun_id + 1); 948 if (sdev == NULL) { 949 kfree(ccb, M_SBP); 950 return; 951 } 952 /* reuse ccb */ 953 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 954 ccb->ccb_h.ccb_sdev_ptr = sdev; 955 xpt_action(ccb); 956 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 957 sdev->freeze = 1; 958 } 959 960 static void 961 sbp_cam_scan_target(void *arg) 962 { 963 struct sbp_target *target = (struct sbp_target *)arg; 964 struct sbp_dev *sdev; 965 union ccb *ccb; 966 967 sdev = sbp_next_dev(target, 0); 968 if (sdev == NULL) { 969 kprintf("sbp_cam_scan_target: nothing to do for target%d\n", 970 target->target_id); 971 return; 972 } 973 SBP_DEBUG(0) 974 sbp_show_sdev_info(sdev, 2); 975 kprintf("sbp_cam_scan_target\n"); 976 END_DEBUG 977 ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO); 978 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); 979 ccb->ccb_h.func_code = XPT_SCAN_LUN; 980 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun; 981 ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 982 ccb->crcn.flags = CAM_FLAG_NONE; 983 ccb->ccb_h.ccb_sdev_ptr = sdev; 984 985 /* The scan is in progress now. */ 986 xpt_action(ccb); 987 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 988 sdev->freeze = 1; 989 } 990 991 static __inline void 992 sbp_scan_dev(struct sbp_dev *sdev) 993 { 994 sdev->status = SBP_DEV_PROBE; 995 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000, 996 sbp_cam_scan_target, (void *)sdev->target); 997 } 998 999 static void 1000 sbp_do_attach(struct fw_xfer *xfer) 1001 { 1002 struct sbp_dev *sdev; 1003 struct sbp_target *target; 1004 struct sbp_softc *sbp; 1005 1006 sdev = (struct sbp_dev *)xfer->sc; 1007 target = sdev->target; 1008 sbp = target->sbp; 1009 SBP_DEBUG(0) 1010 sbp_show_sdev_info(sdev, 2); 1011 kprintf("sbp_do_attach\n"); 1012 END_DEBUG 1013 sbp_xfer_free(xfer); 1014 1015 if (sdev->path == NULL) 1016 xpt_create_path(&sdev->path, xpt_periph, 1017 cam_sim_path(target->sbp->sim), 1018 target->target_id, sdev->lun_id); 1019 1020 /* 1021 * Let CAM scan the bus if we are in the boot process. 1022 * XXX xpt_scan_bus cannot detect LUN larger than 0 1023 * if LUN 0 doesn't exists. 1024 */ 1025 if (sbp_cold > 0) { 1026 sdev->status = SBP_DEV_ATTACHED; 1027 return; 1028 } 1029 1030 sbp_scan_dev(sdev); 1031 return; 1032 } 1033 1034 static void 1035 sbp_agent_reset_callback(struct fw_xfer *xfer) 1036 { 1037 struct sbp_dev *sdev; 1038 1039 sdev = (struct sbp_dev *)xfer->sc; 1040 SBP_DEBUG(1) 1041 sbp_show_sdev_info(sdev, 2); 1042 kprintf("%s\n", __func__); 1043 END_DEBUG 1044 if (xfer->resp != 0) { 1045 sbp_show_sdev_info(sdev, 2); 1046 kprintf("%s: resp=%d\n", __func__, xfer->resp); 1047 } 1048 1049 sbp_xfer_free(xfer); 1050 if (sdev->path) { 1051 xpt_release_devq(sdev->path, sdev->freeze, TRUE); 1052 sdev->freeze = 0; 1053 } 1054 } 1055 1056 static void 1057 sbp_agent_reset(struct sbp_dev *sdev) 1058 { 1059 struct fw_xfer *xfer; 1060 struct fw_pkt *fp; 1061 1062 SBP_DEBUG(0) 1063 sbp_show_sdev_info(sdev, 2); 1064 kprintf("sbp_agent_reset\n"); 1065 END_DEBUG 1066 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); 1067 if (xfer == NULL) 1068 return; 1069 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) 1070 xfer->act.hand = sbp_agent_reset_callback; 1071 else 1072 xfer->act.hand = sbp_do_attach; 1073 fp = &xfer->send.hdr; 1074 fp->mode.wreqq.data = htonl(0xf); 1075 fw_asyreq(xfer->fc, -1, xfer); 1076 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); 1077 } 1078 1079 static void 1080 sbp_busy_timeout_callback(struct fw_xfer *xfer) 1081 { 1082 struct sbp_dev *sdev; 1083 1084 sdev = (struct sbp_dev *)xfer->sc; 1085 SBP_DEBUG(1) 1086 sbp_show_sdev_info(sdev, 2); 1087 kprintf("sbp_busy_timeout_callback\n"); 1088 END_DEBUG 1089 sbp_xfer_free(xfer); 1090 sbp_agent_reset(sdev); 1091 } 1092 1093 static void 1094 sbp_busy_timeout(struct sbp_dev *sdev) 1095 { 1096 struct fw_pkt *fp; 1097 struct fw_xfer *xfer; 1098 SBP_DEBUG(0) 1099 sbp_show_sdev_info(sdev, 2); 1100 kprintf("sbp_busy_timeout\n"); 1101 END_DEBUG 1102 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); 1103 1104 xfer->act.hand = sbp_busy_timeout_callback; 1105 fp = &xfer->send.hdr; 1106 fp->mode.wreqq.dest_hi = 0xffff; 1107 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; 1108 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf); 1109 fw_asyreq(xfer->fc, -1, xfer); 1110 } 1111 1112 static void 1113 sbp_orb_pointer_callback(struct fw_xfer *xfer) 1114 { 1115 struct sbp_dev *sdev; 1116 sdev = (struct sbp_dev *)xfer->sc; 1117 1118 SBP_DEBUG(1) 1119 sbp_show_sdev_info(sdev, 2); 1120 kprintf("%s\n", __func__); 1121 END_DEBUG 1122 if (xfer->resp != 0) { 1123 /* XXX */ 1124 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1125 } 1126 sbp_xfer_free(xfer); 1127 sdev->flags &= ~ORB_POINTER_ACTIVE; 1128 1129 if ((sdev->flags & ORB_POINTER_NEED) != 0) { 1130 struct sbp_ocb *ocb; 1131 1132 sdev->flags &= ~ORB_POINTER_NEED; 1133 ocb = STAILQ_FIRST(&sdev->ocbs); 1134 if (ocb != NULL) 1135 sbp_orb_pointer(sdev, ocb); 1136 } 1137 return; 1138 } 1139 1140 static void 1141 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) 1142 { 1143 struct fw_xfer *xfer; 1144 struct fw_pkt *fp; 1145 SBP_DEBUG(1) 1146 sbp_show_sdev_info(sdev, 2); 1147 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr); 1148 END_DEBUG 1149 1150 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) { 1151 SBP_DEBUG(0) 1152 kprintf("%s: orb pointer active\n", __func__); 1153 END_DEBUG 1154 sdev->flags |= ORB_POINTER_NEED; 1155 return; 1156 } 1157 1158 sdev->flags |= ORB_POINTER_ACTIVE; 1159 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); 1160 if (xfer == NULL) 1161 return; 1162 xfer->act.hand = sbp_orb_pointer_callback; 1163 1164 fp = &xfer->send.hdr; 1165 fp->mode.wreqb.len = 8; 1166 fp->mode.wreqb.extcode = 0; 1167 xfer->send.payload[0] = 1168 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); 1169 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr); 1170 1171 if(fw_asyreq(xfer->fc, -1, xfer) != 0){ 1172 sbp_xfer_free(xfer); 1173 ocb->ccb->ccb_h.status = CAM_REQ_INVALID; 1174 xpt_done(ocb->ccb); 1175 } 1176 } 1177 1178 #if 0 1179 static void 1180 sbp_cmd_callback(struct fw_xfer *xfer) 1181 { 1182 SBP_DEBUG(1) 1183 struct sbp_dev *sdev; 1184 sdev = (struct sbp_dev *)xfer->sc; 1185 sbp_show_sdev_info(sdev, 2); 1186 kprintf("sbp_cmd_callback\n"); 1187 END_DEBUG 1188 if (xfer->resp != 0) { 1189 /* XXX */ 1190 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp); 1191 } 1192 sbp_xfer_free(xfer); 1193 return; 1194 } 1195 1196 static void 1197 sbp_doorbell(struct sbp_dev *sdev) 1198 { 1199 struct fw_xfer *xfer; 1200 struct fw_pkt *fp; 1201 SBP_DEBUG(1) 1202 sbp_show_sdev_info(sdev, 2); 1203 kprintf("sbp_doorbell\n"); 1204 END_DEBUG 1205 1206 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); 1207 if (xfer == NULL) 1208 return; 1209 xfer->act.hand = sbp_cmd_callback; 1210 fp = (struct fw_pkt *)xfer->send.buf; 1211 fp->mode.wreqq.data = htonl(0xf); 1212 fw_asyreq(xfer->fc, -1, xfer); 1213 } 1214 #endif 1215 1216 static struct fw_xfer * 1217 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) 1218 { 1219 struct fw_xfer *xfer; 1220 struct fw_pkt *fp; 1221 struct sbp_target *target; 1222 int new = 0; 1223 1224 target = sdev->target; 1225 crit_enter(); 1226 xfer = STAILQ_FIRST(&target->xferlist); 1227 if (xfer == NULL) { 1228 if (target->n_xfer > 5 /* XXX */) { 1229 kprintf("sbp: no more xfer for this target\n"); 1230 crit_exit(); 1231 return(NULL); 1232 } 1233 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); 1234 if(xfer == NULL){ 1235 kprintf("sbp: fw_xfer_alloc_buf failed\n"); 1236 crit_exit(); 1237 return NULL; 1238 } 1239 target->n_xfer ++; 1240 if (debug) 1241 kprintf("sbp: alloc %d xfer\n", target->n_xfer); 1242 new = 1; 1243 } else { 1244 STAILQ_REMOVE_HEAD(&target->xferlist, link); 1245 } 1246 crit_exit(); 1247 1248 microtime(&xfer->tv); 1249 1250 if (new) { 1251 xfer->recv.pay_len = 0; 1252 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); 1253 xfer->fc = sdev->target->sbp->fd.fc; 1254 xfer->retry_req = fw_asybusy; 1255 } 1256 1257 if (tcode == FWTCODE_WREQB) 1258 xfer->send.pay_len = 8; 1259 else 1260 xfer->send.pay_len = 0; 1261 1262 xfer->sc = (caddr_t)sdev; 1263 fp = &xfer->send.hdr; 1264 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; 1265 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; 1266 fp->mode.wreqq.tlrt = 0; 1267 fp->mode.wreqq.tcode = tcode; 1268 fp->mode.wreqq.pri = 0; 1269 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; 1270 1271 return xfer; 1272 1273 } 1274 1275 static void 1276 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb) 1277 { 1278 struct fw_xfer *xfer; 1279 struct fw_pkt *fp; 1280 struct sbp_ocb *ocb; 1281 struct sbp_target *target; 1282 int nid; 1283 1284 target = sdev->target; 1285 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; 1286 1287 crit_enter(); 1288 if (func == ORB_FUN_RUNQUEUE) { 1289 ocb = STAILQ_FIRST(&target->mgm_ocb_queue); 1290 if (target->mgm_ocb_cur != NULL || ocb == NULL) { 1291 crit_exit(); 1292 return; 1293 } 1294 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); 1295 goto start; 1296 } 1297 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 1298 crit_exit(); 1299 /* XXX */ 1300 return; 1301 } 1302 ocb->flags = OCB_ACT_MGM; 1303 ocb->sdev = sdev; 1304 1305 bzero((void *)ocb->orb, sizeof(ocb->orb)); 1306 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); 1307 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id)); 1308 1309 SBP_DEBUG(0) 1310 sbp_show_sdev_info(sdev, 2); 1311 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]); 1312 END_DEBUG 1313 switch (func) { 1314 case ORB_FUN_LGI: 1315 ocb->orb[0] = ocb->orb[1] = 0; /* password */ 1316 ocb->orb[2] = htonl(nid << 16); 1317 ocb->orb[3] = htonl(sdev->dma.bus_addr); 1318 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); 1319 if (ex_login) 1320 ocb->orb[4] |= htonl(ORB_EXV); 1321 ocb->orb[5] = htonl(SBP_LOGIN_SIZE); 1322 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); 1323 break; 1324 case ORB_FUN_ATA: 1325 ocb->orb[0] = htonl((0 << 16) | 0); 1326 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); 1327 /* fall through */ 1328 case ORB_FUN_RCN: 1329 case ORB_FUN_LGO: 1330 case ORB_FUN_LUR: 1331 case ORB_FUN_RST: 1332 case ORB_FUN_ATS: 1333 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); 1334 break; 1335 } 1336 1337 if (target->mgm_ocb_cur != NULL) { 1338 /* there is a standing ORB */ 1339 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); 1340 crit_exit(); 1341 return; 1342 } 1343 start: 1344 target->mgm_ocb_cur = ocb; 1345 crit_exit(); 1346 1347 callout_reset(&target->mgm_ocb_timeout, 5*hz, 1348 sbp_mgm_timeout, (caddr_t)ocb); 1349 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); 1350 if(xfer == NULL){ 1351 return; 1352 } 1353 xfer->act.hand = sbp_mgm_callback; 1354 1355 fp = &xfer->send.hdr; 1356 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; 1357 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; 1358 fp->mode.wreqb.len = 8; 1359 fp->mode.wreqb.extcode = 0; 1360 xfer->send.payload[0] = htonl(nid << 16); 1361 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); 1362 SBP_DEBUG(0) 1363 sbp_show_sdev_info(sdev, 2); 1364 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr); 1365 END_DEBUG 1366 1367 fw_asyreq(xfer->fc, -1, xfer); 1368 } 1369 1370 static void 1371 sbp_print_scsi_cmd(struct sbp_ocb *ocb) 1372 { 1373 struct ccb_scsiio *csio; 1374 1375 csio = &ocb->ccb->csio; 1376 kprintf("%s:%d:%d XPT_SCSI_IO: " 1377 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 1378 ", flags: 0x%02x, " 1379 "%db cmd/%db data/%db sense\n", 1380 device_get_nameunit(ocb->sdev->target->sbp->fd.dev), 1381 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, 1382 csio->cdb_io.cdb_bytes[0], 1383 csio->cdb_io.cdb_bytes[1], 1384 csio->cdb_io.cdb_bytes[2], 1385 csio->cdb_io.cdb_bytes[3], 1386 csio->cdb_io.cdb_bytes[4], 1387 csio->cdb_io.cdb_bytes[5], 1388 csio->cdb_io.cdb_bytes[6], 1389 csio->cdb_io.cdb_bytes[7], 1390 csio->cdb_io.cdb_bytes[8], 1391 csio->cdb_io.cdb_bytes[9], 1392 ocb->ccb->ccb_h.flags & CAM_DIR_MASK, 1393 csio->cdb_len, csio->dxfer_len, 1394 csio->sense_len); 1395 } 1396 1397 static void 1398 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) 1399 { 1400 struct sbp_cmd_status *sbp_cmd_status; 1401 struct scsi_sense_data *sense; 1402 1403 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; 1404 sense = &ocb->ccb->csio.sense_data; 1405 1406 SBP_DEBUG(0) 1407 sbp_print_scsi_cmd(ocb); 1408 /* XXX need decode status */ 1409 sbp_show_sdev_info(ocb->sdev, 2); 1410 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", 1411 sbp_cmd_status->status, 1412 sbp_cmd_status->sfmt, 1413 sbp_cmd_status->valid, 1414 sbp_cmd_status->s_key, 1415 sbp_cmd_status->s_code, 1416 sbp_cmd_status->s_qlfr, 1417 sbp_status->len 1418 ); 1419 END_DEBUG 1420 1421 switch (sbp_cmd_status->status) { 1422 case SCSI_STATUS_CHECK_COND: 1423 case SCSI_STATUS_BUSY: 1424 case SCSI_STATUS_CMD_TERMINATED: 1425 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ 1426 sense->error_code = SSD_CURRENT_ERROR; 1427 }else{ 1428 sense->error_code = SSD_DEFERRED_ERROR; 1429 } 1430 if(sbp_cmd_status->valid) 1431 sense->error_code |= SSD_ERRCODE_VALID; 1432 sense->flags = sbp_cmd_status->s_key; 1433 if(sbp_cmd_status->mark) 1434 sense->flags |= SSD_FILEMARK; 1435 if(sbp_cmd_status->eom) 1436 sense->flags |= SSD_EOM; 1437 if(sbp_cmd_status->ill_len) 1438 sense->flags |= SSD_ILI; 1439 1440 bcopy(&sbp_cmd_status->info, &sense->info[0], 4); 1441 1442 if (sbp_status->len <= 1) 1443 /* XXX not scsi status. shouldn't be happened */ 1444 sense->extra_len = 0; 1445 else if (sbp_status->len <= 4) 1446 /* add_sense_code(_qual), info, cmd_spec_info */ 1447 sense->extra_len = 6; 1448 else 1449 /* fru, sense_key_spec */ 1450 sense->extra_len = 10; 1451 1452 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); 1453 1454 sense->add_sense_code = sbp_cmd_status->s_code; 1455 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; 1456 sense->fru = sbp_cmd_status->fru; 1457 1458 bcopy(&sbp_cmd_status->s_keydep[0], 1459 &sense->sense_key_spec[0], 3); 1460 1461 ocb->ccb->csio.scsi_status = sbp_cmd_status->status; 1462 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR 1463 | CAM_AUTOSNS_VALID; 1464 /* 1465 { 1466 u_int8_t j, *tmp; 1467 tmp = sense; 1468 for( j = 0 ; j < 32 ; j+=8){ 1469 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", 1470 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], 1471 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); 1472 } 1473 1474 } 1475 */ 1476 break; 1477 default: 1478 sbp_show_sdev_info(ocb->sdev, 2); 1479 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n", 1480 sbp_cmd_status->status); 1481 } 1482 } 1483 1484 static void 1485 sbp_fix_inq_data(struct sbp_ocb *ocb) 1486 { 1487 union ccb *ccb; 1488 struct sbp_dev *sdev; 1489 struct scsi_inquiry_data *inq; 1490 1491 ccb = ocb->ccb; 1492 sdev = ocb->sdev; 1493 1494 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) 1495 return; 1496 SBP_DEBUG(1) 1497 sbp_show_sdev_info(sdev, 2); 1498 kprintf("sbp_fix_inq_data\n"); 1499 END_DEBUG 1500 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; 1501 switch (SID_TYPE(inq)) { 1502 case T_DIRECT: 1503 #if 0 1504 /* 1505 * XXX Convert Direct Access device to RBC. 1506 * I've never seen FireWire DA devices which support READ_6. 1507 */ 1508 if (SID_TYPE(inq) == T_DIRECT) 1509 inq->device |= T_RBC; /* T_DIRECT == 0 */ 1510 #endif 1511 /* fall through */ 1512 case T_RBC: 1513 /* enable tagged queuing */ 1514 if (sbp_tags) 1515 inq->flags |= SID_CmdQue; 1516 else 1517 inq->flags &= ~SID_CmdQue; 1518 /* 1519 * Override vendor/product/revision information. 1520 * Some devices sometimes return strange strings. 1521 */ 1522 #if 1 1523 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); 1524 bcopy(sdev->product, inq->product, sizeof(inq->product)); 1525 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision)); 1526 #endif 1527 break; 1528 } 1529 } 1530 1531 static void 1532 sbp_recv1(struct fw_xfer *xfer) 1533 { 1534 struct fw_pkt *rfp; 1535 #if NEED_RESPONSE 1536 struct fw_pkt *sfp; 1537 #endif 1538 struct sbp_softc *sbp; 1539 struct sbp_dev *sdev; 1540 struct sbp_ocb *ocb; 1541 struct sbp_login_res *login_res = NULL; 1542 struct sbp_status *sbp_status; 1543 struct sbp_target *target; 1544 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; 1545 u_int32_t addr; 1546 /* 1547 u_int32_t *ld; 1548 ld = xfer->recv.buf; 1549 kprintf("sbp %x %d %d %08x %08x %08x %08x\n", 1550 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1551 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1552 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); 1553 */ 1554 sbp = (struct sbp_softc *)xfer->sc; 1555 if (xfer->resp != 0){ 1556 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp); 1557 goto done0; 1558 } 1559 if (xfer->recv.payload == NULL){ 1560 kprintf("sbp_recv: xfer->recv.payload == NULL\n"); 1561 goto done0; 1562 } 1563 rfp = &xfer->recv.hdr; 1564 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ 1565 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); 1566 goto done0; 1567 } 1568 sbp_status = (struct sbp_status *)xfer->recv.payload; 1569 addr = rfp->mode.wreqb.dest_lo; 1570 SBP_DEBUG(2) 1571 kprintf("received address 0x%x\n", addr); 1572 END_DEBUG 1573 t = SBP_ADDR2TRG(addr); 1574 if (t >= SBP_NUM_TARGETS) { 1575 device_printf(sbp->fd.dev, 1576 "sbp_recv1: invalid target %d\n", t); 1577 goto done0; 1578 } 1579 target = &sbp->targets[t]; 1580 l = SBP_ADDR2LUN(addr); 1581 if (l >= target->num_lun || target->luns[l] == NULL) { 1582 device_printf(sbp->fd.dev, 1583 "sbp_recv1: invalid lun %d (target=%d)\n", l, t); 1584 goto done0; 1585 } 1586 sdev = target->luns[l]; 1587 1588 ocb = NULL; 1589 switch (sbp_status->src) { 1590 case 0: 1591 case 1: 1592 /* check mgm_ocb_cur first */ 1593 ocb = target->mgm_ocb_cur; 1594 if (ocb != NULL) { 1595 if (OCB_MATCH(ocb, sbp_status)) { 1596 callout_stop(&target->mgm_ocb_timeout); 1597 target->mgm_ocb_cur = NULL; 1598 break; 1599 } 1600 } 1601 ocb = sbp_dequeue_ocb(sdev, sbp_status); 1602 if (ocb == NULL) { 1603 sbp_show_sdev_info(sdev, 2); 1604 kprintf("No ocb(%x) on the queue\n", 1605 ntohl(sbp_status->orb_lo)); 1606 } 1607 break; 1608 case 2: 1609 /* unsolicit */ 1610 sbp_show_sdev_info(sdev, 2); 1611 kprintf("unsolicit status received\n"); 1612 break; 1613 default: 1614 sbp_show_sdev_info(sdev, 2); 1615 kprintf("unknown sbp_status->src\n"); 1616 } 1617 1618 status_valid0 = (sbp_status->src < 2 1619 && sbp_status->resp == ORB_RES_CMPL 1620 && sbp_status->dead == 0); 1621 status_valid = (status_valid0 && sbp_status->status == 0); 1622 1623 if (!status_valid0 || debug > 2){ 1624 int status; 1625 SBP_DEBUG(0) 1626 sbp_show_sdev_info(sdev, 2); 1627 kprintf("ORB status src:%x resp:%x dead:%x" 1628 " len:%x stat:%x orb:%x%08x\n", 1629 sbp_status->src, sbp_status->resp, sbp_status->dead, 1630 sbp_status->len, sbp_status->status, 1631 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); 1632 END_DEBUG 1633 sbp_show_sdev_info(sdev, 2); 1634 status = sbp_status->status; 1635 switch(sbp_status->resp) { 1636 case 0: 1637 if (status > MAX_ORB_STATUS0) 1638 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]); 1639 else 1640 kprintf("%s\n", orb_status0[status]); 1641 break; 1642 case 1: 1643 kprintf("Obj: %s, Error: %s\n", 1644 orb_status1_object[(status>>6) & 3], 1645 orb_status1_serial_bus_error[status & 0xf]); 1646 break; 1647 case 2: 1648 kprintf("Illegal request\n"); 1649 break; 1650 case 3: 1651 kprintf("Vendor dependent\n"); 1652 break; 1653 default: 1654 kprintf("unknown respose code %d\n", sbp_status->resp); 1655 } 1656 } 1657 1658 /* we have to reset the fetch agent if it's dead */ 1659 if (sbp_status->dead) { 1660 if (sdev->path) { 1661 xpt_freeze_devq(sdev->path, 1); 1662 sdev->freeze ++; 1663 } 1664 reset_agent = 1; 1665 } 1666 1667 if (ocb == NULL) 1668 goto done; 1669 1670 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){ 1671 case ORB_FMT_NOP: 1672 break; 1673 case ORB_FMT_VED: 1674 break; 1675 case ORB_FMT_STD: 1676 switch(ocb->flags) { 1677 case OCB_ACT_MGM: 1678 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; 1679 reset_agent = 0; 1680 switch(orb_fun) { 1681 case ORB_FUN_LGI: 1682 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD); 1683 login_res = sdev->login; 1684 login_res->len = ntohs(login_res->len); 1685 login_res->id = ntohs(login_res->id); 1686 login_res->cmd_hi = ntohs(login_res->cmd_hi); 1687 login_res->cmd_lo = ntohl(login_res->cmd_lo); 1688 if (status_valid) { 1689 SBP_DEBUG(0) 1690 sbp_show_sdev_info(sdev, 2); 1691 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)); 1692 END_DEBUG 1693 sbp_busy_timeout(sdev); 1694 } else { 1695 /* forgot logout? */ 1696 sbp_show_sdev_info(sdev, 2); 1697 kprintf("login failed\n"); 1698 sdev->status = SBP_DEV_RESET; 1699 } 1700 break; 1701 case ORB_FUN_RCN: 1702 login_res = sdev->login; 1703 if (status_valid) { 1704 SBP_DEBUG(0) 1705 sbp_show_sdev_info(sdev, 2); 1706 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); 1707 END_DEBUG 1708 #if 1 1709 if (sdev->status == SBP_DEV_ATTACHED) 1710 sbp_scan_dev(sdev); 1711 else 1712 sbp_agent_reset(sdev); 1713 #else 1714 sdev->status = SBP_DEV_ATTACHED; 1715 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL); 1716 #endif 1717 } else { 1718 /* reconnection hold time exceed? */ 1719 SBP_DEBUG(0) 1720 sbp_show_sdev_info(sdev, 2); 1721 kprintf("reconnect failed\n"); 1722 END_DEBUG 1723 sbp_login(sdev); 1724 } 1725 break; 1726 case ORB_FUN_LGO: 1727 sdev->status = SBP_DEV_RESET; 1728 break; 1729 case ORB_FUN_RST: 1730 sbp_busy_timeout(sdev); 1731 break; 1732 case ORB_FUN_LUR: 1733 case ORB_FUN_ATA: 1734 case ORB_FUN_ATS: 1735 sbp_agent_reset(sdev); 1736 break; 1737 default: 1738 sbp_show_sdev_info(sdev, 2); 1739 kprintf("unknown function %d\n", orb_fun); 1740 break; 1741 } 1742 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 1743 break; 1744 case OCB_ACT_CMD: 1745 sdev->timeout = 0; 1746 if(ocb->ccb != NULL){ 1747 union ccb *ccb; 1748 /* 1749 u_int32_t *ld; 1750 ld = ocb->ccb->csio.data_ptr; 1751 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) 1752 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); 1753 else 1754 kprintf("ptr NULL\n"); 1755 kprintf("len %d\n", sbp_status->len); 1756 */ 1757 ccb = ocb->ccb; 1758 if(sbp_status->len > 1){ 1759 sbp_scsi_status(sbp_status, ocb); 1760 }else{ 1761 if(sbp_status->resp != ORB_RES_CMPL){ 1762 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 1763 }else{ 1764 ccb->ccb_h.status = CAM_REQ_CMP; 1765 } 1766 } 1767 /* fix up inq data */ 1768 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) 1769 sbp_fix_inq_data(ocb); 1770 xpt_done(ccb); 1771 } 1772 break; 1773 default: 1774 break; 1775 } 1776 } 1777 1778 sbp_free_ocb(sdev, ocb); 1779 done: 1780 if (reset_agent) 1781 sbp_agent_reset(sdev); 1782 1783 done0: 1784 xfer->recv.pay_len = SBP_RECV_LEN; 1785 /* The received packet is usually small enough to be stored within 1786 * the buffer. In that case, the controller return ack_complete and 1787 * no respose is necessary. 1788 * 1789 * XXX fwohci.c and firewire.c should inform event_code such as 1790 * ack_complete or ack_pending to upper driver. 1791 */ 1792 #if NEED_RESPONSE 1793 xfer->send.off = 0; 1794 sfp = (struct fw_pkt *)xfer->send.buf; 1795 sfp->mode.wres.dst = rfp->mode.wreqb.src; 1796 xfer->dst = sfp->mode.wres.dst; 1797 xfer->spd = min(sdev->target->fwdev->speed, max_speed); 1798 xfer->act.hand = sbp_loginres_callback; 1799 xfer->retry_req = fw_asybusy; 1800 1801 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; 1802 sfp->mode.wres.tcode = FWTCODE_WRES; 1803 sfp->mode.wres.rtcode = 0; 1804 sfp->mode.wres.pri = 0; 1805 1806 fw_asyreq(xfer->fc, -1, xfer); 1807 #else 1808 /* recycle */ 1809 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1810 #endif 1811 1812 return; 1813 1814 } 1815 1816 static void 1817 sbp_recv(struct fw_xfer *xfer) 1818 { 1819 crit_enter(); 1820 sbp_recv1(xfer); 1821 crit_exit(); 1822 } 1823 /* 1824 * sbp_attach() 1825 */ 1826 static int 1827 sbp_attach(device_t dev) 1828 { 1829 struct sbp_softc *sbp; 1830 struct cam_devq *devq; 1831 struct fw_xfer *xfer; 1832 int i, error; 1833 1834 SBP_DEBUG(0) 1835 kprintf("sbp_attach (cold=%d)\n", cold); 1836 END_DEBUG 1837 1838 if (cold) 1839 sbp_cold ++; 1840 sbp = ((struct sbp_softc *)device_get_softc(dev)); 1841 bzero(sbp, sizeof(struct sbp_softc)); 1842 sbp->fd.dev = dev; 1843 sbp->fd.fc = device_get_ivars(dev); 1844 1845 if (max_speed < 0) 1846 max_speed = sbp->fd.fc->speed; 1847 1848 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat, 1849 /* XXX shoud be 4 for sane backend? */ 1850 /*alignment*/1, 1851 /*boundary*/0, 1852 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 1853 /*highaddr*/BUS_SPACE_MAXADDR, 1854 /*filter*/NULL, /*filterarg*/NULL, 1855 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, 1856 /*maxsegsz*/SBP_SEG_MAX, 1857 /*flags*/BUS_DMA_ALLOCNOW, 1858 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102 1859 /*lockfunc*/busdma_lock_mutex, 1860 /*lockarg*/&Giant, 1861 #endif 1862 &sbp->dmat); 1863 if (error != 0) { 1864 kprintf("sbp_attach: Could not allocate DMA tag " 1865 "- error %d\n", error); 1866 return (ENOMEM); 1867 } 1868 1869 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); 1870 if (devq == NULL) 1871 return (ENXIO); 1872 1873 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ 1874 sbp->targets[i].fwdev = NULL; 1875 sbp->targets[i].luns = NULL; 1876 } 1877 1878 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, 1879 device_get_unit(dev), 1880 /*untagged*/ 1, 1881 /*tagged*/ SBP_QUEUE_LEN - 1, 1882 devq); 1883 cam_simq_release(devq); 1884 if (sbp->sim == NULL) 1885 return (ENXIO); 1886 1887 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS) 1888 goto fail; 1889 1890 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim), 1891 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1892 xpt_bus_deregister(cam_sim_path(sbp->sim)); 1893 goto fail; 1894 } 1895 1896 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ 1897 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); 1898 sbp->fwb.end = sbp->fwb.start + 0xffff; 1899 sbp->fwb.act_type = FWACT_XFER; 1900 /* pre-allocate xfer */ 1901 STAILQ_INIT(&sbp->fwb.xferlist); 1902 for (i = 0; i < SBP_NUM_OCB/2; i ++) { 1903 xfer = fw_xfer_alloc_buf(M_SBP, 1904 /* send */0, 1905 /* recv */SBP_RECV_LEN); 1906 xfer->act.hand = sbp_recv; 1907 #if NEED_RESPONSE 1908 xfer->fc = sbp->fd.fc; 1909 #endif 1910 xfer->sc = (caddr_t)sbp; 1911 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); 1912 } 1913 fw_bindadd(sbp->fd.fc, &sbp->fwb); 1914 1915 sbp->fd.post_busreset = sbp_post_busreset; 1916 sbp->fd.post_explore = sbp_post_explore; 1917 1918 if (sbp->fd.fc->status != -1) { 1919 crit_enter(); 1920 sbp_post_busreset((void *)sbp); 1921 sbp_post_explore((void *)sbp); 1922 crit_exit(); 1923 } 1924 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); 1925 1926 return (0); 1927 fail: 1928 cam_sim_free(sbp->sim); 1929 return (ENXIO); 1930 } 1931 1932 static int 1933 sbp_logout_all(struct sbp_softc *sbp) 1934 { 1935 struct sbp_target *target; 1936 struct sbp_dev *sdev; 1937 int i, j; 1938 1939 SBP_DEBUG(0) 1940 kprintf("sbp_logout_all\n"); 1941 END_DEBUG 1942 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) { 1943 target = &sbp->targets[i]; 1944 if (target->luns == NULL) 1945 continue; 1946 for (j = 0; j < target->num_lun; j++) { 1947 sdev = target->luns[j]; 1948 if (sdev == NULL) 1949 continue; 1950 callout_stop(&sdev->login_callout); 1951 if (sdev->status >= SBP_DEV_TOATTACH && 1952 sdev->status <= SBP_DEV_ATTACHED) 1953 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL); 1954 } 1955 } 1956 1957 return 0; 1958 } 1959 1960 static int 1961 sbp_shutdown(device_t dev) 1962 { 1963 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 1964 1965 sbp_logout_all(sbp); 1966 return (0); 1967 } 1968 1969 static void 1970 sbp_free_sdev(struct sbp_dev *sdev) 1971 { 1972 int i; 1973 1974 if (sdev == NULL) 1975 return; 1976 for (i = 0; i < SBP_QUEUE_LEN; i++) 1977 bus_dmamap_destroy(sdev->target->sbp->dmat, 1978 sdev->ocb[i].dmamap); 1979 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma); 1980 kfree(sdev, M_SBP); 1981 } 1982 1983 static void 1984 sbp_free_target(struct sbp_target *target) 1985 { 1986 struct sbp_softc *sbp; 1987 struct fw_xfer *xfer, *next; 1988 int i; 1989 1990 if (target->luns == NULL) 1991 return; 1992 callout_stop(&target->mgm_ocb_timeout); 1993 sbp = target->sbp; 1994 for (i = 0; i < target->num_lun; i++) 1995 sbp_free_sdev(target->luns[i]); 1996 1997 for (xfer = STAILQ_FIRST(&target->xferlist); 1998 xfer != NULL; xfer = next) { 1999 next = STAILQ_NEXT(xfer, link); 2000 fw_xfer_free_buf(xfer); 2001 } 2002 STAILQ_INIT(&target->xferlist); 2003 kfree(target->luns, M_SBP); 2004 target->num_lun = 0; 2005 target->luns = NULL; 2006 target->fwdev = NULL; 2007 } 2008 2009 static int 2010 sbp_detach(device_t dev) 2011 { 2012 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); 2013 struct firewire_comm *fc = sbp->fd.fc; 2014 struct fw_xfer *xfer, *next; 2015 int i; 2016 2017 SBP_DEBUG(0) 2018 kprintf("sbp_detach\n"); 2019 END_DEBUG 2020 2021 for (i = 0; i < SBP_NUM_TARGETS; i ++) 2022 sbp_cam_detach_target(&sbp->targets[i]); 2023 xpt_async(AC_LOST_DEVICE, sbp->path, NULL); 2024 xpt_free_path(sbp->path); 2025 xpt_bus_deregister(cam_sim_path(sbp->sim)); 2026 cam_sim_free(sbp->sim); 2027 2028 sbp_logout_all(sbp); 2029 2030 /* XXX wait for logout completion */ 2031 tsleep(&i, FWPRI, "sbpdtc", hz/2); 2032 2033 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) 2034 sbp_free_target(&sbp->targets[i]); 2035 2036 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist); 2037 xfer != NULL; xfer = next) { 2038 next = STAILQ_NEXT(xfer, link); 2039 fw_xfer_free_buf(xfer); 2040 } 2041 STAILQ_INIT(&sbp->fwb.xferlist); 2042 fw_bindremove(fc, &sbp->fwb); 2043 2044 bus_dma_tag_destroy(sbp->dmat); 2045 2046 return (0); 2047 } 2048 2049 static void 2050 sbp_cam_detach_sdev(struct sbp_dev *sdev) 2051 { 2052 if (sdev == NULL) 2053 return; 2054 if (sdev->status == SBP_DEV_DEAD) 2055 return; 2056 if (sdev->status == SBP_DEV_RESET) 2057 return; 2058 if (sdev->path) { 2059 xpt_release_devq(sdev->path, 2060 sdev->freeze, TRUE); 2061 sdev->freeze = 0; 2062 xpt_async(AC_LOST_DEVICE, sdev->path, NULL); 2063 xpt_free_path(sdev->path); 2064 sdev->path = NULL; 2065 } 2066 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 2067 } 2068 2069 static void 2070 sbp_cam_detach_target(struct sbp_target *target) 2071 { 2072 int i; 2073 2074 if (target->luns != NULL) { 2075 SBP_DEBUG(0) 2076 kprintf("sbp_detach_target %d\n", target->target_id); 2077 END_DEBUG 2078 callout_stop(&target->scan_callout); 2079 for (i = 0; i < target->num_lun; i++) 2080 sbp_cam_detach_sdev(target->luns[i]); 2081 } 2082 } 2083 2084 static void 2085 sbp_target_reset(struct sbp_dev *sdev, int method) 2086 { 2087 int i; 2088 struct sbp_target *target = sdev->target; 2089 struct sbp_dev *tsdev; 2090 2091 for (i = 0; i < target->num_lun; i++) { 2092 tsdev = target->luns[i]; 2093 if (tsdev == NULL) 2094 continue; 2095 if (tsdev->status == SBP_DEV_DEAD) 2096 continue; 2097 if (tsdev->status == SBP_DEV_RESET) 2098 continue; 2099 xpt_freeze_devq(tsdev->path, 1); 2100 tsdev->freeze ++; 2101 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT); 2102 if (method == 2) 2103 tsdev->status = SBP_DEV_LOGIN; 2104 } 2105 switch(method) { 2106 case 1: 2107 kprintf("target reset\n"); 2108 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); 2109 break; 2110 case 2: 2111 kprintf("reset start\n"); 2112 sbp_reset_start(sdev); 2113 break; 2114 } 2115 2116 } 2117 2118 static void 2119 sbp_mgm_timeout(void *arg) 2120 { 2121 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2122 struct sbp_dev *sdev = ocb->sdev; 2123 struct sbp_target *target = sdev->target; 2124 2125 sbp_show_sdev_info(sdev, 2); 2126 kprintf("request timeout(mgm orb:0x%08x) ... ", 2127 (u_int32_t)ocb->bus_addr); 2128 target->mgm_ocb_cur = NULL; 2129 sbp_free_ocb(sdev, ocb); 2130 #if 0 2131 /* XXX */ 2132 kprintf("run next request\n"); 2133 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); 2134 #endif 2135 #if 1 2136 kprintf("reset start\n"); 2137 sbp_reset_start(sdev); 2138 #endif 2139 } 2140 2141 static void 2142 sbp_timeout(void *arg) 2143 { 2144 struct sbp_ocb *ocb = (struct sbp_ocb *)arg; 2145 struct sbp_dev *sdev = ocb->sdev; 2146 2147 sbp_show_sdev_info(sdev, 2); 2148 kprintf("request timeout(cmd orb:0x%08x) ... ", 2149 (u_int32_t)ocb->bus_addr); 2150 2151 sdev->timeout ++; 2152 switch(sdev->timeout) { 2153 case 1: 2154 kprintf("agent reset\n"); 2155 xpt_freeze_devq(sdev->path, 1); 2156 sdev->freeze ++; 2157 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); 2158 sbp_agent_reset(sdev); 2159 break; 2160 case 2: 2161 case 3: 2162 sbp_target_reset(sdev, sdev->timeout - 1); 2163 break; 2164 #if 0 2165 default: 2166 /* XXX give up */ 2167 sbp_cam_detach_target(target); 2168 if (target->luns != NULL) 2169 kfree(target->luns, M_SBP); 2170 target->num_lun = 0; 2171 target->luns = NULL; 2172 target->fwdev = NULL; 2173 #endif 2174 } 2175 } 2176 2177 static void 2178 sbp_action1(struct cam_sim *sim, union ccb *ccb) 2179 { 2180 2181 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; 2182 struct sbp_target *target = NULL; 2183 struct sbp_dev *sdev = NULL; 2184 2185 /* target:lun -> sdev mapping */ 2186 if (sbp != NULL 2187 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD 2188 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { 2189 target = &sbp->targets[ccb->ccb_h.target_id]; 2190 if (target->fwdev != NULL 2191 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD 2192 && ccb->ccb_h.target_lun < target->num_lun) { 2193 sdev = target->luns[ccb->ccb_h.target_lun]; 2194 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && 2195 sdev->status != SBP_DEV_PROBE) 2196 sdev = NULL; 2197 } 2198 } 2199 2200 SBP_DEBUG(1) 2201 if (sdev == NULL) 2202 kprintf("invalid target %d lun %d\n", 2203 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2204 END_DEBUG 2205 2206 switch (ccb->ccb_h.func_code) { 2207 case XPT_SCSI_IO: 2208 case XPT_RESET_DEV: 2209 case XPT_GET_TRAN_SETTINGS: 2210 case XPT_SET_TRAN_SETTINGS: 2211 case XPT_CALC_GEOMETRY: 2212 if (sdev == NULL) { 2213 SBP_DEBUG(1) 2214 kprintf("%s:%d:%d:func_code 0x%04x: " 2215 "Invalid target (target needed)\n", 2216 device_get_nameunit(sbp->fd.dev), 2217 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2218 ccb->ccb_h.func_code); 2219 END_DEBUG 2220 2221 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2222 xpt_done(ccb); 2223 return; 2224 } 2225 break; 2226 case XPT_PATH_INQ: 2227 case XPT_NOOP: 2228 /* The opcodes sometimes aimed at a target (sc is valid), 2229 * sometimes aimed at the SIM (sc is invalid and target is 2230 * CAM_TARGET_WILDCARD) 2231 */ 2232 if (sbp == NULL && 2233 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { 2234 SBP_DEBUG(0) 2235 kprintf("%s:%d:%d func_code 0x%04x: " 2236 "Invalid target (no wildcard)\n", 2237 device_get_nameunit(sbp->fd.dev), 2238 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2239 ccb->ccb_h.func_code); 2240 END_DEBUG 2241 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2242 xpt_done(ccb); 2243 return; 2244 } 2245 break; 2246 default: 2247 /* XXX Hm, we should check the input parameters */ 2248 break; 2249 } 2250 2251 switch (ccb->ccb_h.func_code) { 2252 case XPT_SCSI_IO: 2253 { 2254 struct ccb_scsiio *csio; 2255 struct sbp_ocb *ocb; 2256 int speed; 2257 void *cdb; 2258 2259 csio = &ccb->csio; 2260 2261 SBP_DEBUG(2) 2262 kprintf("%s:%d:%d XPT_SCSI_IO: " 2263 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" 2264 ", flags: 0x%02x, " 2265 "%db cmd/%db data/%db sense\n", 2266 device_get_nameunit(sbp->fd.dev), 2267 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2268 csio->cdb_io.cdb_bytes[0], 2269 csio->cdb_io.cdb_bytes[1], 2270 csio->cdb_io.cdb_bytes[2], 2271 csio->cdb_io.cdb_bytes[3], 2272 csio->cdb_io.cdb_bytes[4], 2273 csio->cdb_io.cdb_bytes[5], 2274 csio->cdb_io.cdb_bytes[6], 2275 csio->cdb_io.cdb_bytes[7], 2276 csio->cdb_io.cdb_bytes[8], 2277 csio->cdb_io.cdb_bytes[9], 2278 ccb->ccb_h.flags & CAM_DIR_MASK, 2279 csio->cdb_len, csio->dxfer_len, 2280 csio->sense_len); 2281 END_DEBUG 2282 if(sdev == NULL){ 2283 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 2284 xpt_done(ccb); 2285 return; 2286 } 2287 #if 0 2288 /* if we are in probe stage, pass only probe commands */ 2289 if (sdev->status == SBP_DEV_PROBE) { 2290 char *name; 2291 name = xpt_path_periph(ccb->ccb_h.path)->periph_name; 2292 kprintf("probe stage, periph name: %s\n", name); 2293 if (strcmp(name, "probe") != 0) { 2294 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2295 xpt_done(ccb); 2296 return; 2297 } 2298 } 2299 #endif 2300 if ((ocb = sbp_get_ocb(sdev)) == NULL) { 2301 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2302 xpt_done(ccb); 2303 return; 2304 } 2305 2306 ocb->flags = OCB_ACT_CMD; 2307 ocb->sdev = sdev; 2308 ocb->ccb = ccb; 2309 ccb->ccb_h.ccb_sdev_ptr = sdev; 2310 ocb->orb[0] = htonl(1 << 31); 2311 ocb->orb[1] = 0; 2312 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); 2313 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET); 2314 speed = min(target->fwdev->speed, max_speed); 2315 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) 2316 | ORB_CMD_MAXP(speed + 7)); 2317 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ 2318 ocb->orb[4] |= htonl(ORB_CMD_IN); 2319 } 2320 2321 if (csio->ccb_h.flags & CAM_SCATTER_VALID) 2322 kprintf("sbp: CAM_SCATTER_VALID\n"); 2323 if (csio->ccb_h.flags & CAM_DATA_PHYS) 2324 kprintf("sbp: CAM_DATA_PHYS\n"); 2325 2326 if (csio->ccb_h.flags & CAM_CDB_POINTER) 2327 cdb = (void *)csio->cdb_io.cdb_ptr; 2328 else 2329 cdb = (void *)&csio->cdb_io.cdb_bytes; 2330 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len); 2331 /* 2332 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); 2333 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); 2334 */ 2335 if (ccb->csio.dxfer_len > 0) { 2336 int error; 2337 2338 crit_enter(); 2339 error = bus_dmamap_load(/*dma tag*/sbp->dmat, 2340 /*dma map*/ocb->dmamap, 2341 ccb->csio.data_ptr, 2342 ccb->csio.dxfer_len, 2343 sbp_execute_ocb, 2344 ocb, 2345 /*flags*/0); 2346 crit_exit(); 2347 if (error) 2348 kprintf("sbp: bus_dmamap_load error %d\n", error); 2349 } else 2350 sbp_execute_ocb(ocb, NULL, 0, 0); 2351 break; 2352 } 2353 case XPT_CALC_GEOMETRY: 2354 { 2355 struct ccb_calc_geometry *ccg; 2356 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2357 u_int32_t size_mb; 2358 u_int32_t secs_per_cylinder; 2359 int extended = 1; 2360 #endif 2361 2362 ccg = &ccb->ccg; 2363 if (ccg->block_size == 0) { 2364 kprintf("sbp_action1: block_size is 0.\n"); 2365 ccb->ccb_h.status = CAM_REQ_INVALID; 2366 xpt_done(ccb); 2367 break; 2368 } 2369 SBP_DEBUG(1) 2370 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " 2371 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2372 "Volume size = %d\n", 2373 #else 2374 "Volume size = %jd\n", 2375 #endif 2376 device_get_nameunit(sbp->fd.dev), 2377 cam_sim_path(sbp->sim), 2378 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 2379 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2380 (uintmax_t) 2381 #endif 2382 ccg->volume_size); 2383 END_DEBUG 2384 2385 #if defined(__DragonFly__) || __FreeBSD_version < 501100 2386 size_mb = ccg->volume_size 2387 / ((1024L * 1024L) / ccg->block_size); 2388 2389 if (size_mb > 1024 && extended) { 2390 ccg->heads = 255; 2391 ccg->secs_per_track = 63; 2392 } else { 2393 ccg->heads = 64; 2394 ccg->secs_per_track = 32; 2395 } 2396 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2397 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2398 ccb->ccb_h.status = CAM_REQ_CMP; 2399 #else 2400 cam_calc_geometry(ccg, /*extended*/1); 2401 #endif 2402 xpt_done(ccb); 2403 break; 2404 } 2405 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 2406 { 2407 2408 SBP_DEBUG(1) 2409 kprintf("%s:%d:XPT_RESET_BUS: \n", 2410 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); 2411 END_DEBUG 2412 2413 ccb->ccb_h.status = CAM_REQ_INVALID; 2414 xpt_done(ccb); 2415 break; 2416 } 2417 case XPT_PATH_INQ: /* Path routing inquiry */ 2418 { 2419 struct ccb_pathinq *cpi = &ccb->cpi; 2420 2421 SBP_DEBUG(1) 2422 kprintf("%s:%d:%d XPT_PATH_INQ:.\n", 2423 device_get_nameunit(sbp->fd.dev), 2424 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2425 END_DEBUG 2426 cpi->version_num = 1; /* XXX??? */ 2427 cpi->hba_inquiry = PI_TAG_ABLE; 2428 cpi->target_sprt = 0; 2429 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE; 2430 cpi->hba_eng_cnt = 0; 2431 cpi->max_target = SBP_NUM_TARGETS - 1; 2432 cpi->max_lun = SBP_NUM_LUNS - 1; 2433 cpi->initiator_id = SBP_INITIATOR; 2434 cpi->bus_id = sim->bus_id; 2435 cpi->base_transfer_speed = 400 * 1000 / 8; 2436 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2437 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); 2438 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 2439 cpi->unit_number = sim->unit_number; 2440 2441 cpi->ccb_h.status = CAM_REQ_CMP; 2442 xpt_done(ccb); 2443 break; 2444 } 2445 case XPT_GET_TRAN_SETTINGS: 2446 { 2447 struct ccb_trans_settings *cts = &ccb->cts; 2448 SBP_DEBUG(1) 2449 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", 2450 device_get_nameunit(sbp->fd.dev), 2451 ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2452 END_DEBUG 2453 /* Enable disconnect and tagged queuing */ 2454 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID; 2455 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB; 2456 2457 cts->ccb_h.status = CAM_REQ_CMP; 2458 xpt_done(ccb); 2459 break; 2460 } 2461 case XPT_ABORT: 2462 ccb->ccb_h.status = CAM_UA_ABORT; 2463 xpt_done(ccb); 2464 break; 2465 case XPT_SET_TRAN_SETTINGS: 2466 /* XXX */ 2467 default: 2468 ccb->ccb_h.status = CAM_REQ_INVALID; 2469 xpt_done(ccb); 2470 break; 2471 } 2472 return; 2473 } 2474 2475 static void 2476 sbp_action(struct cam_sim *sim, union ccb *ccb) 2477 { 2478 crit_enter(); 2479 sbp_action1(sim, ccb); 2480 crit_exit(); 2481 } 2482 2483 static void 2484 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) 2485 { 2486 int i; 2487 struct sbp_ocb *ocb; 2488 struct sbp_ocb *prev; 2489 bus_dma_segment_t *s; 2490 2491 if (error) 2492 kprintf("sbp_execute_ocb: error=%d\n", error); 2493 2494 ocb = (struct sbp_ocb *)arg; 2495 2496 SBP_DEBUG(2) 2497 kprintf("sbp_execute_ocb: seg %d", seg); 2498 for (i = 0; i < seg; i++) 2499 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2500 kprintf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); 2501 #else 2502 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, 2503 (uintmax_t)segments[i].ds_len); 2504 #endif 2505 kprintf("\n"); 2506 END_DEBUG 2507 2508 if (seg == 1) { 2509 /* direct pointer */ 2510 s = &segments[0]; 2511 if (s->ds_len > SBP_SEG_MAX) 2512 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2513 ocb->orb[3] = htonl(s->ds_addr); 2514 ocb->orb[4] |= htonl(s->ds_len); 2515 } else if(seg > 1) { 2516 /* page table */ 2517 for (i = 0; i < seg; i++) { 2518 s = &segments[i]; 2519 SBP_DEBUG(0) 2520 /* XXX LSI Logic "< 16 byte" bug might be hit */ 2521 if (s->ds_len < 16) 2522 kprintf("sbp_execute_ocb: warning, " 2523 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2524 "segment length(%d) is less than 16." 2525 #else 2526 "segment length(%zd) is less than 16." 2527 #endif 2528 "(seg=%d/%d)\n", s->ds_len, i+1, seg); 2529 END_DEBUG 2530 if (s->ds_len > SBP_SEG_MAX) 2531 panic("ds_len > SBP_SEG_MAX, fix busdma code"); 2532 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); 2533 ocb->ind_ptr[i].lo = htonl(s->ds_addr); 2534 } 2535 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); 2536 } 2537 2538 if (seg > 0) 2539 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, 2540 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2541 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 2542 prev = sbp_enqueue_ocb(ocb->sdev, ocb); 2543 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); 2544 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { 2545 ocb->sdev->flags &= ~ORB_LINK_DEAD; 2546 sbp_orb_pointer(ocb->sdev, ocb); 2547 } 2548 } 2549 2550 static void 2551 sbp_poll(struct cam_sim *sim) 2552 { 2553 struct sbp_softc *sbp; 2554 struct firewire_comm *fc; 2555 2556 sbp = (struct sbp_softc *)sim->softc; 2557 fc = sbp->fd.fc; 2558 2559 fc->poll(fc, 0, -1); 2560 2561 return; 2562 } 2563 2564 static struct sbp_ocb * 2565 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) 2566 { 2567 struct sbp_ocb *ocb; 2568 struct sbp_ocb *next; 2569 int order = 0; 2570 int flags; 2571 2572 crit_enter(); 2573 2574 SBP_DEBUG(1) 2575 sbp_show_sdev_info(sdev, 2); 2576 kprintf("%s: 0x%08x src %d\n", 2577 __func__, ntohl(sbp_status->orb_lo), sbp_status->src); 2578 END_DEBUG 2579 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { 2580 next = STAILQ_NEXT(ocb, ocb); 2581 flags = ocb->flags; 2582 if (OCB_MATCH(ocb, sbp_status)) { 2583 /* found */ 2584 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); 2585 if (ocb->ccb != NULL) 2586 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2587 if (ntohl(ocb->orb[4]) & 0xffff) { 2588 bus_dmamap_sync(sdev->target->sbp->dmat, 2589 ocb->dmamap, 2590 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2591 BUS_DMASYNC_POSTREAD : 2592 BUS_DMASYNC_POSTWRITE); 2593 bus_dmamap_unload(sdev->target->sbp->dmat, 2594 ocb->dmamap); 2595 } 2596 if (sbp_status->src == SRC_NO_NEXT) { 2597 if (next != NULL) 2598 sbp_orb_pointer(sdev, next); 2599 else if (order > 0) { 2600 /* 2601 * Unordered execution 2602 * We need to send pointer for 2603 * next ORB 2604 */ 2605 sdev->flags |= ORB_LINK_DEAD; 2606 } 2607 } 2608 break; 2609 } else 2610 order ++; 2611 } 2612 crit_exit(); 2613 SBP_DEBUG(0) 2614 if (ocb && order > 0) { 2615 sbp_show_sdev_info(sdev, 2); 2616 kprintf("unordered execution order:%d\n", order); 2617 } 2618 END_DEBUG 2619 return (ocb); 2620 } 2621 2622 static struct sbp_ocb * 2623 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2624 { 2625 struct sbp_ocb *prev; 2626 2627 crit_enter(); 2628 2629 SBP_DEBUG(1) 2630 sbp_show_sdev_info(sdev, 2); 2631 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2632 kprintf("%s: 0x%08x\n", __func__, ocb->bus_addr); 2633 #else 2634 kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr); 2635 #endif 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, sbp_timeout, ocb); 2643 2644 if (prev != NULL) { 2645 SBP_DEBUG(2) 2646 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2647 kprintf("linking chain 0x%x -> 0x%x\n", 2648 prev->bus_addr, ocb->bus_addr); 2649 #else 2650 kprintf("linking chain 0x%jx -> 0x%jx\n", 2651 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr); 2652 #endif 2653 END_DEBUG 2654 prev->orb[1] = htonl(ocb->bus_addr); 2655 prev->orb[0] = 0; 2656 } 2657 crit_exit(); 2658 2659 return prev; 2660 } 2661 2662 static struct sbp_ocb * 2663 sbp_get_ocb(struct sbp_dev *sdev) 2664 { 2665 struct sbp_ocb *ocb; 2666 2667 crit_enter(); 2668 ocb = STAILQ_FIRST(&sdev->free_ocbs); 2669 if (ocb == NULL) { 2670 kprintf("ocb shortage!!!\n"); 2671 return NULL; 2672 } 2673 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); 2674 crit_exit(); 2675 ocb->ccb = NULL; 2676 return (ocb); 2677 } 2678 2679 static void 2680 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) 2681 { 2682 ocb->flags = 0; 2683 ocb->ccb = NULL; 2684 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); 2685 } 2686 2687 static void 2688 sbp_abort_ocb(struct sbp_ocb *ocb, int status) 2689 { 2690 struct sbp_dev *sdev; 2691 2692 sdev = ocb->sdev; 2693 SBP_DEBUG(0) 2694 sbp_show_sdev_info(sdev, 2); 2695 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2696 kprintf("sbp_abort_ocb 0x%x\n", ocb->bus_addr); 2697 #else 2698 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr); 2699 #endif 2700 END_DEBUG 2701 SBP_DEBUG(1) 2702 if (ocb->ccb != NULL) 2703 sbp_print_scsi_cmd(ocb); 2704 END_DEBUG 2705 if (ntohl(ocb->orb[4]) & 0xffff) { 2706 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap, 2707 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? 2708 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 2709 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap); 2710 } 2711 if (ocb->ccb != NULL) { 2712 callout_stop(&ocb->ccb->ccb_h.timeout_ch); 2713 ocb->ccb->ccb_h.status = status; 2714 xpt_done(ocb->ccb); 2715 } 2716 sbp_free_ocb(sdev, ocb); 2717 } 2718 2719 static void 2720 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) 2721 { 2722 struct sbp_ocb *ocb, *next; 2723 STAILQ_HEAD(, sbp_ocb) temp; 2724 2725 crit_enter(); 2726 bcopy(&sdev->ocbs, &temp, sizeof(temp)); 2727 STAILQ_INIT(&sdev->ocbs); 2728 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) { 2729 next = STAILQ_NEXT(ocb, ocb); 2730 sbp_abort_ocb(ocb, status); 2731 } 2732 crit_exit(); 2733 } 2734 2735 static devclass_t sbp_devclass; 2736 2737 /* 2738 * Because sbp is a static device that always exists under any attached 2739 * firewire device, and not scanned by the firewire device, we need an 2740 * identify function to install the device. For our sanity we want 2741 * the sbp device to have the same unit number as the fireweire device. 2742 */ 2743 2744 static device_method_t sbp_methods[] = { 2745 /* device interface */ 2746 DEVMETHOD(device_identify, bus_generic_identify_sameunit), 2747 DEVMETHOD(device_probe, sbp_probe), 2748 DEVMETHOD(device_attach, sbp_attach), 2749 DEVMETHOD(device_detach, sbp_detach), 2750 DEVMETHOD(device_shutdown, sbp_shutdown), 2751 2752 { 0, 0 } 2753 }; 2754 2755 static driver_t sbp_driver = { 2756 "sbp", 2757 sbp_methods, 2758 sizeof(struct sbp_softc), 2759 }; 2760 2761 DECLARE_DUMMY_MODULE(sbp); 2762 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0); 2763 MODULE_VERSION(sbp, 1); 2764 MODULE_DEPEND(sbp, firewire, 1, 1, 1); 2765 MODULE_DEPEND(sbp, cam, 1, 1, 1); 2766