sys/dev/firewire/sbp.c

   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  * $FreeBSD$
  35  *
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/module.h>
  41 #include <sys/bus.h>
  42 #include <sys/kernel.h>
  43 #include <sys/sysctl.h>
  44 #include <machine/bus.h>
  45 #include <sys/malloc.h>
  46 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
  47 #include <sys/lock.h>
  48 #include <sys/mutex.h>
  49 #endif
  50
  51 #if defined(__DragonFly__) || __FreeBSD_version < 500106
  52 #include <sys/devicestat.h>     /* for struct devstat */
  53 #endif
  54
  55 #ifdef __DragonFly__
  56 #include <bus/cam/cam.h>
  57 #include <bus/cam/cam_ccb.h>
  58 #include <bus/cam/cam_sim.h>
  59 #include <bus/cam/cam_xpt_sim.h>
  60 #include <bus/cam/cam_debug.h>
  61 #include <bus/cam/cam_periph.h>
  62 #include <bus/cam/scsi/scsi_all.h>
  63
  64 #include <bus/firewire/firewire.h>
  65 #include <bus/firewire/firewirereg.h>
  66 #include <bus/firewire/fwdma.h>
  67 #include <bus/firewire/iec13213.h>
  68 #include "sbp.h"
  69 #else
  70 #include <cam/cam.h>
  71 #include <cam/cam_ccb.h>
  72 #include <cam/cam_sim.h>
  73 #include <cam/cam_xpt_sim.h>
  74 #include <cam/cam_debug.h>
  75 #include <cam/cam_periph.h>
  76 #include <cam/scsi/scsi_all.h>
  77
  78 #include <dev/firewire/firewire.h>
  79 #include <dev/firewire/firewirereg.h>
  80 #include <dev/firewire/fwdma.h>
  81 #include <dev/firewire/iec13213.h>
  82 #include <dev/firewire/sbp.h>
  83 #endif
  84
  85 #define ccb_sdev_ptr    spriv_ptr0
  86 #define ccb_sbp_ptr     spriv_ptr1
  87
  88 #define SBP_NUM_TARGETS 8 /* MAX 64 */
  89 /*
  90  * Scan_bus doesn't work for more than 8 LUNs
  91  * because of CAM_SCSI2_MAXLUN in cam_xpt.c
  92  */
  93 #define SBP_NUM_LUNS 64
  94 #define SBP_MAXPHYS  MIN(MAXPHYS, (512*1024) /* 512KB */)
  95 #define SBP_DMA_SIZE PAGE_SIZE
  96 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
  97 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
  98 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
  99
 100 /*
 101  * STATUS FIFO addressing
 102  *   bit
 103  * -----------------------
 104  *  0- 1( 2): 0 (alignment)
 105  *  2- 7( 6): target
 106  *  8-15( 8): lun
 107  * 16-31( 8): reserved
 108  * 32-47(16): SBP_BIND_HI
 109  * 48-64(16): bus_id, node_id
 110  */
 111 #define SBP_BIND_HI 0x1
 112 #define SBP_DEV2ADDR(t, l) \
 113         (((u_int64_t)SBP_BIND_HI << 32) \
 114         | (((l) & 0xff) << 8) \
 115         | (((t) & 0x3f) << 2))
 116 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
 117 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
 118 #define SBP_INITIATOR 7
 119
 120 static char *orb_fun_name[] = {
 121         ORB_FUN_NAMES
 122 };
 123
 124 static int debug = 0;
 125 static int auto_login = 1;
 126 static int max_speed = -1;
 127 static int sbp_cold = 1;
 128 static int ex_login = 1;
 129 static int login_delay = 1000;  /* msec */
 130 static int scan_delay = 500;    /* msec */
 131 static int use_doorbell = 0;
 132 static int sbp_tags = 0;
 133
 134 SYSCTL_DECL(_hw_firewire);
 135 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 136 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 137         "SBP debug flag");
 138 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 139         "SBP perform login automatically");
 140 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 141         "SBP transfer max speed");
 142 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 143         &ex_login, 0, "SBP enable exclusive login");
 144 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 145         &login_delay, 0, "SBP login delay in msec");
 146 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 147         &scan_delay, 0, "SBP scan delay in msec");
 148 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
 149         &use_doorbell, 0, "SBP use doorbell request");
 150 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 151         "SBP tagged queuing support");
 152
 153 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 154 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 155 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 156 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 157 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 158 TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
 159 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 160
 161 #define NEED_RESPONSE 0
 162
 163 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 164 #ifdef __sparc64__ /* iommu */
 165 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
 166 #else
 167 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
 168 #endif
 169 struct sbp_ocb {
 170         STAILQ_ENTRY(sbp_ocb)   ocb;
 171         union ccb       *ccb;
 172         bus_addr_t      bus_addr;
 173         uint32_t        orb[8];
 174 #define IND_PTR_OFFSET  (8*sizeof(uint32_t))
 175         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 176         struct sbp_dev  *sdev;
 177         int             flags; /* XXX should be removed */
 178         bus_dmamap_t    dmamap;
 179 };
 180
 181 #define OCB_ACT_MGM 0
 182 #define OCB_ACT_CMD 1
 183 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 184
 185 struct sbp_dev{
 186 #define SBP_DEV_RESET           0       /* accept login */
 187 #define SBP_DEV_LOGIN           1       /* to login */
 188 #if 0
 189 #define SBP_DEV_RECONN          2       /* to reconnect */
 190 #endif
 191 #define SBP_DEV_TOATTACH        3       /* to attach */
 192 #define SBP_DEV_PROBE           4       /* scan lun */
 193 #define SBP_DEV_ATTACHED        5       /* in operation */
 194 #define SBP_DEV_DEAD            6       /* unavailable unit */
 195 #define SBP_DEV_RETRY           7       /* unavailable unit */
 196         uint8_t status:4,
 197                  timeout:4;
 198         uint8_t type;
 199         uint16_t lun_id;
 200         uint16_t freeze;
 201 #define ORB_LINK_DEAD           (1 << 0)
 202 #define VALID_LUN               (1 << 1)
 203 #define ORB_POINTER_ACTIVE      (1 << 2)
 204 #define ORB_POINTER_NEED        (1 << 3)
 205 #define ORB_DOORBELL_ACTIVE     (1 << 4)
 206 #define ORB_DOORBELL_NEED       (1 << 5)
 207 #define ORB_SHORTAGE            (1 << 6)
 208         uint16_t flags;
 209         struct cam_path *path;
 210         struct sbp_target *target;
 211         struct fwdma_alloc dma;
 212         struct sbp_login_res *login;
 213         struct callout login_callout;
 214         struct sbp_ocb *ocb;
 215         STAILQ_HEAD(, sbp_ocb) ocbs;
 216         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 217         struct sbp_ocb *last_ocb;
 218         char vendor[32];
 219         char product[32];
 220         char revision[10];
 221         char bustgtlun[32];
 222 };
 223
 224 struct sbp_target {
 225         int target_id;
 226         int num_lun;
 227         struct sbp_dev  **luns;
 228         struct sbp_softc *sbp;
 229         struct fw_device *fwdev;
 230         uint32_t mgm_hi, mgm_lo;
 231         struct sbp_ocb *mgm_ocb_cur;
 232         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 233         struct callout mgm_ocb_timeout;
 234         struct callout scan_callout;
 235         STAILQ_HEAD(, fw_xfer) xferlist;
 236         int n_xfer;
 237 };
 238
 239 struct sbp_softc {
 240         struct firewire_dev_comm fd;
 241         struct cam_sim  *sim;
 242         struct cam_path  *path;
 243         struct sbp_target targets[SBP_NUM_TARGETS];
 244         struct fw_bind fwb;
 245         bus_dma_tag_t   dmat;
 246         struct timeval last_busreset;
 247 #define SIMQ_FREEZED 1
 248         int flags;
 249         struct mtx mtx;
 250 };
 251 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
 252 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
 253
 254 static void sbp_post_explore (void *);
 255 static void sbp_recv (struct fw_xfer *);
 256 static void sbp_mgm_callback (struct fw_xfer *);
 257 #if 0
 258 static void sbp_cmd_callback (struct fw_xfer *);
 259 #endif
 260 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 261 static void sbp_doorbell(struct sbp_dev *);
 262 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 263 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 264 static void sbp_abort_ocb (struct sbp_ocb *, int);
 265 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 266 static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
 267 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 268 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 269 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 270 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 271 static void sbp_cam_detach_sdev(struct sbp_dev *);
 272 static void sbp_free_sdev(struct sbp_dev *);
 273 static void sbp_cam_detach_target (struct sbp_target *);
 274 static void sbp_free_target (struct sbp_target *);
 275 static void sbp_mgm_timeout (void *arg);
 276 static void sbp_timeout (void *arg);
 277 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 278
 279 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 280
 281 /* cam related functions */
 282 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 283 static void     sbp_poll(struct cam_sim *sim);
 284 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 285 static void     sbp_cam_scan_target(void *arg);
 286
 287 static char *orb_status0[] = {
 288         /* 0 */ "No additional information to report",
 289         /* 1 */ "Request type not supported",
 290         /* 2 */ "Speed not supported",
 291         /* 3 */ "Page size not supported",
 292         /* 4 */ "Access denied",
 293         /* 5 */ "Logical unit not supported",
 294         /* 6 */ "Maximum payload too small",
 295         /* 7 */ "Reserved for future standardization",
 296         /* 8 */ "Resources unavailable",
 297         /* 9 */ "Function rejected",
 298         /* A */ "Login ID not recognized",
 299         /* B */ "Dummy ORB completed",
 300         /* C */ "Request aborted",
 301         /* FF */ "Unspecified error"
 302 #define MAX_ORB_STATUS0 0xd
 303 };
 304
 305 static char *orb_status1_object[] = {
 306         /* 0 */ "Operation request block (ORB)",
 307         /* 1 */ "Data buffer",
 308         /* 2 */ "Page table",
 309         /* 3 */ "Unable to specify"
 310 };
 311
 312 static char *orb_status1_serial_bus_error[] = {
 313         /* 0 */ "Missing acknowledge",
 314         /* 1 */ "Reserved; not to be used",
 315         /* 2 */ "Time-out error",
 316         /* 3 */ "Reserved; not to be used",
 317         /* 4 */ "Busy retry limit exceeded(X)",
 318         /* 5 */ "Busy retry limit exceeded(A)",
 319         /* 6 */ "Busy retry limit exceeded(B)",
 320         /* 7 */ "Reserved for future standardization",
 321         /* 8 */ "Reserved for future standardization",
 322         /* 9 */ "Reserved for future standardization",
 323         /* A */ "Reserved for future standardization",
 324         /* B */ "Tardy retry limit exceeded",
 325         /* C */ "Conflict error",
 326         /* D */ "Data error",
 327         /* E */ "Type error",
 328         /* F */ "Address error"
 329 };
 330
 331 static void
 332 sbp_identify(driver_t *driver, device_t parent)
 333 {
 334 SBP_DEBUG(0)
 335         printf("sbp_identify\n");
 336 END_DEBUG
 337
 338         BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
 339 }
 340
 341 /*
 342  * sbp_probe()
 343  */
 344 static int
 345 sbp_probe(device_t dev)
 346 {
 347         device_t pa;
 348
 349 SBP_DEBUG(0)
 350         printf("sbp_probe\n");
 351 END_DEBUG
 352
 353         pa = device_get_parent(dev);
 354         if(device_get_unit(dev) != device_get_unit(pa)){
 355                 return(ENXIO);
 356         }
 357
 358         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 359
 360 #if 0
 361         if (bootverbose)
 362                 debug = bootverbose;
 363 #endif
 364
 365         return (0);
 366 }
 367
 368 /*
 369  * Display device characteristics on the console
 370  */
 371 static void
 372 sbp_show_sdev_info(struct sbp_dev *sdev)
 373 {
 374         struct fw_device *fwdev;
 375
 376         fwdev = sdev->target->fwdev;
 377         device_printf(sdev->target->sbp->fd.dev,
 378                 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
 379                 "speed:%d maxrec:%d\n",
 380                 __func__,
 381                 sdev->bustgtlun,
 382                 (sdev->type & 0x40) >> 6,
 383                 (sdev->type & 0x1f),
 384                 fwdev->eui.hi,
 385                 fwdev->eui.lo,
 386                 fwdev->dst,
 387                 fwdev->speed,
 388                 fwdev->maxrec);
 389
 390         device_printf(sdev->target->sbp->fd.dev,
 391                         "%s: %s '%s' '%s' '%s'\n",
 392                         __func__,
 393                         sdev->bustgtlun,
 394                         sdev->vendor,
 395                         sdev->product,
 396                         sdev->revision);
 397 }
 398
 399 static struct {
 400         int bus;
 401         int target;
 402         struct fw_eui64 eui;
 403 } wired[] = {
 404         /* Bus  Target  EUI64 */
 405 #if 0
 406         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 407         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 408         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 409 #endif
 410         {-1,    -1,     {0,0}}
 411 };
 412
 413 static int
 414 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 415 {
 416         int bus, i, target=-1;
 417         char w[SBP_NUM_TARGETS];
 418
 419         bzero(w, sizeof(w));
 420         bus = device_get_unit(sbp->fd.dev);
 421
 422         /* XXX wired-down configuration should be gotten from
 423                                         tunable or device hint */
 424         for (i = 0; wired[i].bus >= 0; i ++) {
 425                 if (wired[i].bus == bus) {
 426                         w[wired[i].target] = 1;
 427                         if (wired[i].eui.hi == fwdev->eui.hi &&
 428                                         wired[i].eui.lo == fwdev->eui.lo)
 429                                 target = wired[i].target;
 430                 }
 431         }
 432         if (target >= 0) {
 433                 if(target < SBP_NUM_TARGETS &&
 434                                 sbp->targets[target].fwdev == NULL)
 435                         return(target);
 436                 device_printf(sbp->fd.dev,
 437                         "target %d is not free for %08x:%08x\n",
 438                         target, fwdev->eui.hi, fwdev->eui.lo);
 439                 target = -1;
 440         }
 441         /* non-wired target */
 442         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 443                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 444                         target = i;
 445                         break;
 446                 }
 447
 448         return target;
 449 }
 450
 451 static void
 452 sbp_alloc_lun(struct sbp_target *target)
 453 {
 454         struct crom_context cc;
 455         struct csrreg *reg;
 456         struct sbp_dev *sdev, **newluns;
 457         struct sbp_softc *sbp;
 458         int maxlun, lun, i;
 459
 460         sbp = target->sbp;
 461         crom_init_context(&cc, target->fwdev->csrrom);
 462         /* XXX shoud parse appropriate unit directories only */
 463         maxlun = -1;
 464         while (cc.depth >= 0) {
 465                 reg = crom_search_key(&cc, CROM_LUN);
 466                 if (reg == NULL)
 467                         break;
 468                 lun = reg->val & 0xffff;
 469 SBP_DEBUG(0)
 470                 printf("target %d lun %d found\n", target->target_id, lun);
 471 END_DEBUG
 472                 if (maxlun < lun)
 473                         maxlun = lun;
 474                 crom_next(&cc);
 475         }
 476         if (maxlun < 0)
 477                 printf("%s:%d no LUN found\n",
 478                     device_get_nameunit(target->sbp->fd.dev),
 479                     target->target_id);
 480
 481         maxlun ++;
 482         if (maxlun >= SBP_NUM_LUNS)
 483                 maxlun = SBP_NUM_LUNS;
 484
 485         /* Invalidiate stale devices */
 486         for (lun = 0; lun < target->num_lun; lun ++) {
 487                 sdev = target->luns[lun];
 488                 if (sdev == NULL)
 489                         continue;
 490                 sdev->flags &= ~VALID_LUN;
 491                 if (lun >= maxlun) {
 492                         /* lost device */
 493                         sbp_cam_detach_sdev(sdev);
 494                         sbp_free_sdev(sdev);
 495                         target->luns[lun] = NULL;
 496                 }
 497         }
 498
 499         /* Reallocate */
 500         if (maxlun != target->num_lun) {
 501                 newluns = (struct sbp_dev **) realloc(target->luns,
 502                     sizeof(struct sbp_dev *) * maxlun,
 503                     M_SBP, M_NOWAIT | M_ZERO);
 504
 505                 if (newluns == NULL) {
 506                         printf("%s: realloc failed\n", __func__);
 507                         newluns = target->luns;
 508                         maxlun = target->num_lun;
 509                 }
 510
 511                 /*
 512                  * We must zero the extended region for the case
 513                  * realloc() doesn't allocate new buffer.
 514                  */
 515                 if (maxlun > target->num_lun)
 516                         bzero(&newluns[target->num_lun],
 517                             sizeof(struct sbp_dev *) *
 518                             (maxlun - target->num_lun));
 519
 520                 target->luns = newluns;
 521                 target->num_lun = maxlun;
 522         }
 523
 524         crom_init_context(&cc, target->fwdev->csrrom);
 525         while (cc.depth >= 0) {
 526                 int new = 0;
 527
 528                 reg = crom_search_key(&cc, CROM_LUN);
 529                 if (reg == NULL)
 530                         break;
 531                 lun = reg->val & 0xffff;
 532                 if (lun >= SBP_NUM_LUNS) {
 533                         printf("too large lun %d\n", lun);
 534                         goto next;
 535                 }
 536
 537                 sdev = target->luns[lun];
 538                 if (sdev == NULL) {
 539                         sdev = malloc(sizeof(struct sbp_dev),
 540                             M_SBP, M_NOWAIT | M_ZERO);
 541                         if (sdev == NULL) {
 542                                 printf("%s: malloc failed\n", __func__);
 543                                 goto next;
 544                         }
 545                         target->luns[lun] = sdev;
 546                         sdev->lun_id = lun;
 547                         sdev->target = target;
 548                         STAILQ_INIT(&sdev->ocbs);
 549                         CALLOUT_INIT(&sdev->login_callout);
 550                         sdev->status = SBP_DEV_RESET;
 551                         new = 1;
 552                         snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
 553                                         device_get_nameunit(sdev->target->sbp->fd.dev),
 554                                         sdev->target->target_id,
 555                                         sdev->lun_id);
 556                 }
 557                 sdev->flags |= VALID_LUN;
 558                 sdev->type = (reg->val & 0xff0000) >> 16;
 559
 560                 if (new == 0)
 561                         goto next;
 562
 563                 fwdma_malloc(sbp->fd.fc,
 564                         /* alignment */ sizeof(uint32_t),
 565                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 566                 if (sdev->dma.v_addr == NULL) {
 567                         printf("%s: dma space allocation failed\n",
 568                                                         __func__);
 569                         free(sdev, M_SBP);
 570                         target->luns[lun] = NULL;
 571                         goto next;
 572                 }
 573                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 574                 sdev->ocb = (struct sbp_ocb *)
 575                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 576                 bzero((char *)sdev->ocb,
 577                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 578
 579                 STAILQ_INIT(&sdev->free_ocbs);
 580                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 581                         struct sbp_ocb *ocb;
 582                         ocb = &sdev->ocb[i];
 583                         ocb->bus_addr = sdev->dma.bus_addr
 584                                 + SBP_LOGIN_SIZE
 585                                 + sizeof(struct sbp_ocb) * i
 586                                 + offsetof(struct sbp_ocb, orb[0]);
 587                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 588                                 printf("sbp_attach: cannot create dmamap\n");
 589                                 /* XXX */
 590                                 goto next;
 591                         }
 592                         sbp_free_ocb(sdev, ocb);
 593                 }
 594 next:
 595                 crom_next(&cc);
 596         }
 597
 598         for (lun = 0; lun < target->num_lun; lun ++) {
 599                 sdev = target->luns[lun];
 600                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 601                         sbp_cam_detach_sdev(sdev);
 602                         sbp_free_sdev(sdev);
 603                         target->luns[lun] = NULL;
 604                 }
 605         }
 606 }
 607
 608 static struct sbp_target *
 609 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 610 {
 611         int i;
 612         struct sbp_target *target;
 613         struct crom_context cc;
 614         struct csrreg *reg;
 615
 616 SBP_DEBUG(1)
 617         printf("sbp_alloc_target\n");
 618 END_DEBUG
 619         i = sbp_new_target(sbp, fwdev);
 620         if (i < 0) {
 621                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 622                 return NULL;
 623         }
 624         /* new target */
 625         target = &sbp->targets[i];
 626         target->sbp = sbp;
 627         target->fwdev = fwdev;
 628         target->target_id = i;
 629         /* XXX we may want to reload mgm port after each bus reset */
 630         /* XXX there might be multiple management agents */
 631         crom_init_context(&cc, target->fwdev->csrrom);
 632         reg = crom_search_key(&cc, CROM_MGM);
 633         if (reg == NULL || reg->val == 0) {
 634                 printf("NULL management address\n");
 635                 target->fwdev = NULL;
 636                 return NULL;
 637         }
 638         target->mgm_hi = 0xffff;
 639         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 640         target->mgm_ocb_cur = NULL;
 641 SBP_DEBUG(1)
 642         printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 643 END_DEBUG
 644         STAILQ_INIT(&target->xferlist);
 645         target->n_xfer = 0;
 646         STAILQ_INIT(&target->mgm_ocb_queue);
 647         CALLOUT_INIT(&target->mgm_ocb_timeout);
 648         CALLOUT_INIT(&target->scan_callout);
 649
 650         target->luns = NULL;
 651         target->num_lun = 0;
 652         return target;
 653 }
 654
 655 static void
 656 sbp_probe_lun(struct sbp_dev *sdev)
 657 {
 658         struct fw_device *fwdev;
 659         struct crom_context c, *cc = &c;
 660         struct csrreg *reg;
 661
 662         bzero(sdev->vendor, sizeof(sdev->vendor));
 663         bzero(sdev->product, sizeof(sdev->product));
 664
 665         fwdev = sdev->target->fwdev;
 666         crom_init_context(cc, fwdev->csrrom);
 667         /* get vendor string */
 668         crom_search_key(cc, CSRKEY_VENDOR);
 669         crom_next(cc);
 670         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 671         /* skip to the unit directory for SBP-2 */
 672         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 673                 if (reg->val == CSRVAL_T10SBP2)
 674                         break;
 675                 crom_next(cc);
 676         }
 677         /* get firmware revision */
 678         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 679         if (reg != NULL)
 680                 snprintf(sdev->revision, sizeof(sdev->revision),
 681                                                 "%06x", reg->val);
 682         /* get product string */
 683         crom_search_key(cc, CSRKEY_MODEL);
 684         crom_next(cc);
 685         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 686 }
 687
 688 static void
 689 sbp_login_callout(void *arg)
 690 {
 691         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 692         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 693 }
 694
 695 static void
 696 sbp_login(struct sbp_dev *sdev)
 697 {
 698         struct timeval delta;
 699         struct timeval t;
 700         int ticks = 0;
 701
 702         microtime(&delta);
 703         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 704         t.tv_sec = login_delay / 1000;
 705         t.tv_usec = (login_delay % 1000) * 1000;
 706         timevalsub(&t, &delta);
 707         if (t.tv_sec >= 0 && t.tv_usec > 0)
 708                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 709 SBP_DEBUG(0)
 710         printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
 711             (intmax_t)t.tv_sec, t.tv_usec, ticks);
 712 END_DEBUG
 713         callout_reset(&sdev->login_callout, ticks,
 714                         sbp_login_callout, (void *)(sdev));
 715 }
 716
 717 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 718         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 719
 720 static void
 721 sbp_probe_target(void *arg)
 722 {
 723         struct sbp_target *target = (struct sbp_target *)arg;
 724         struct sbp_softc *sbp = target->sbp;
 725         struct sbp_dev *sdev;
 726         int i, alive;
 727
 728         alive = SBP_FWDEV_ALIVE(target->fwdev);
 729 SBP_DEBUG(1)
 730         device_printf(sbp->fd.dev, "%s %d%salive\n",
 731                  __func__, target->target_id,
 732                 (!alive) ? " not " : "");
 733 END_DEBUG
 734
 735         sbp = target->sbp;
 736         sbp_alloc_lun(target);
 737
 738         /* XXX untimeout mgm_ocb and dequeue */
 739         for (i=0; i < target->num_lun; i++) {
 740                 sdev = target->luns[i];
 741                 if (sdev == NULL)
 742                         continue;
 743                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 744                         if (sdev->path != NULL) {
 745                                 SBP_LOCK(sbp);
 746                                 xpt_freeze_devq(sdev->path, 1);
 747                                 sdev->freeze ++;
 748                                 SBP_UNLOCK(sbp);
 749                         }
 750                         sbp_probe_lun(sdev);
 751                         sbp_show_sdev_info(sdev);
 752
 753                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 754                         switch (sdev->status) {
 755                         case SBP_DEV_RESET:
 756                                 /* new or revived target */
 757                                 if (auto_login)
 758                                         sbp_login(sdev);
 759                                 break;
 760                         case SBP_DEV_TOATTACH:
 761                         case SBP_DEV_PROBE:
 762                         case SBP_DEV_ATTACHED:
 763                         case SBP_DEV_RETRY:
 764                         default:
 765                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 766                                 break;
 767                         }
 768                 } else {
 769                         switch (sdev->status) {
 770                         case SBP_DEV_ATTACHED:
 771 SBP_DEBUG(0)
 772                                 /* the device has gone */
 773                                 device_printf(sbp->fd.dev, "%s: lost target\n",
 774                                         __func__);
 775 END_DEBUG
 776                                 if (sdev->path) {
 777                                         SBP_LOCK(sbp);
 778                                         xpt_freeze_devq(sdev->path, 1);
 779                                         sdev->freeze ++;
 780                                         SBP_UNLOCK(sbp);
 781                                 }
 782                                 sdev->status = SBP_DEV_RETRY;
 783                                 sbp_cam_detach_sdev(sdev);
 784                                 sbp_free_sdev(sdev);
 785                                 target->luns[i] = NULL;
 786                                 break;
 787                         case SBP_DEV_PROBE:
 788                         case SBP_DEV_TOATTACH:
 789                                 sdev->status = SBP_DEV_RESET;
 790                                 break;
 791                         case SBP_DEV_RETRY:
 792                         case SBP_DEV_RESET:
 793                         case SBP_DEV_DEAD:
 794                                 break;
 795                         }
 796                 }
 797         }
 798 }
 799
 800 static void
 801 sbp_post_busreset(void *arg)
 802 {
 803         struct sbp_softc *sbp;
 804
 805         sbp = (struct sbp_softc *)arg;
 806 SBP_DEBUG(0)
 807         printf("sbp_post_busreset\n");
 808 END_DEBUG
 809         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 810                 SBP_LOCK(sbp);
 811                 xpt_freeze_simq(sbp->sim, /*count*/1);
 812                 sbp->sim->flags |= SIMQ_FREEZED;
 813                 SBP_UNLOCK(sbp);
 814         }
 815         microtime(&sbp->last_busreset);
 816 }
 817
 818 static void
 819 sbp_post_explore(void *arg)
 820 {
 821         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 822         struct sbp_target *target;
 823         struct fw_device *fwdev;
 824         int i, alive;
 825
 826 SBP_DEBUG(0)
 827         printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
 828 END_DEBUG
 829         /* We need physical access */
 830         if (!firewire_phydma_enable)
 831                 return;
 832
 833         if (sbp_cold > 0)
 834                 sbp_cold --;
 835
 836 #if 0
 837         /*
 838          * XXX don't let CAM the bus rest.
 839          * CAM tries to do something with freezed (DEV_RETRY) devices.
 840          */
 841         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 842 #endif
 843
 844         /* Garbage Collection */
 845         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 846                 target = &sbp->targets[i];
 847                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 848                         if (target->fwdev == NULL || target->fwdev == fwdev)
 849                                 break;
 850                 if (fwdev == NULL) {
 851                         /* device has removed in lower driver */
 852                         sbp_cam_detach_target(target);
 853                         sbp_free_target(target);
 854                 }
 855         }
 856         /* traverse device list */
 857         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 858 SBP_DEBUG(0)
 859                 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
 860                                 __func__, fwdev->eui.hi, fwdev->eui.lo,
 861                                 (fwdev->status != FWDEVATTACHED) ? "not" : "",
 862                                 fwdev->status);
 863 END_DEBUG
 864                 alive = SBP_FWDEV_ALIVE(fwdev);
 865                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 866                         target = &sbp->targets[i];
 867                         if(target->fwdev == fwdev ) {
 868                                 /* known target */
 869                                 break;
 870                         }
 871                 }
 872                 if(i == SBP_NUM_TARGETS){
 873                         if (alive) {
 874                                 /* new target */
 875                                 target = sbp_alloc_target(sbp, fwdev);
 876                                 if (target == NULL)
 877                                         continue;
 878                         } else {
 879                                 continue;
 880                         }
 881                 }
 882                 sbp_probe_target((void *)target);
 883                 if (target->num_lun == 0)
 884                         sbp_free_target(target);
 885         }
 886         SBP_LOCK(sbp);
 887         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 888         sbp->sim->flags &= ~SIMQ_FREEZED;
 889         SBP_UNLOCK(sbp);
 890 }
 891
 892 #if NEED_RESPONSE
 893 static void
 894 sbp_loginres_callback(struct fw_xfer *xfer){
 895         int s;
 896         struct sbp_dev *sdev;
 897         sdev = (struct sbp_dev *)xfer->sc;
 898 SBP_DEBUG(1)
 899         device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
 900 END_DEBUG
 901         /* recycle */
 902         s = splfw();
 903         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 904         splx(s);
 905         return;
 906 }
 907 #endif
 908
 909 static __inline void
 910 sbp_xfer_free(struct fw_xfer *xfer)
 911 {
 912         struct sbp_dev *sdev;
 913         int s;
 914
 915         sdev = (struct sbp_dev *)xfer->sc;
 916         fw_xfer_unload(xfer);
 917         s = splfw();
 918         SBP_LOCK(sdev->target->sbp);
 919         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 920         SBP_UNLOCK(sdev->target->sbp);
 921         splx(s);
 922 }
 923
 924 static void
 925 sbp_reset_start_callback(struct fw_xfer *xfer)
 926 {
 927         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 928         struct sbp_target *target = sdev->target;
 929         int i;
 930
 931         if (xfer->resp != 0) {
 932                 device_printf(sdev->target->sbp->fd.dev,
 933                         "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
 934         }
 935
 936         for (i = 0; i < target->num_lun; i++) {
 937                 tsdev = target->luns[i];
 938                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 939                         sbp_login(tsdev);
 940         }
 941 }
 942
 943 static void
 944 sbp_reset_start(struct sbp_dev *sdev)
 945 {
 946         struct fw_xfer *xfer;
 947         struct fw_pkt *fp;
 948
 949 SBP_DEBUG(0)
 950         device_printf(sdev->target->sbp->fd.dev,
 951                         "%s:%s\n", __func__,sdev->bustgtlun);
 952 END_DEBUG
 953
 954         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 955         xfer->hand = sbp_reset_start_callback;
 956         fp = &xfer->send.hdr;
 957         fp->mode.wreqq.dest_hi = 0xffff;
 958         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 959         fp->mode.wreqq.data = htonl(0xf);
 960         fw_asyreq(xfer->fc, -1, xfer);
 961 }
 962
 963 static void
 964 sbp_mgm_callback(struct fw_xfer *xfer)
 965 {
 966         struct sbp_dev *sdev;
 967         int resp;
 968
 969         sdev = (struct sbp_dev *)xfer->sc;
 970
 971 SBP_DEBUG(1)
 972         device_printf(sdev->target->sbp->fd.dev,
 973                 "%s:%s\n", __func__, sdev->bustgtlun);
 974 END_DEBUG
 975         resp = xfer->resp;
 976         sbp_xfer_free(xfer);
 977         return;
 978 }
 979
 980 static struct sbp_dev *
 981 sbp_next_dev(struct sbp_target *target, int lun)
 982 {
 983         struct sbp_dev **sdevp;
 984         int i;
 985
 986         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 987             i++, sdevp++)
 988                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 989                         return(*sdevp);
 990         return(NULL);
 991 }
 992
 993 #define SCAN_PRI 1
 994 static void
 995 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 996 {
 997         struct sbp_target *target;
 998         struct sbp_dev *sdev;
 999
1000         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1001         target = sdev->target;
1002 SBP_DEBUG(0)
1003         device_printf(sdev->target->sbp->fd.dev,
1004                 "%s:%s\n", __func__, sdev->bustgtlun);
1005 END_DEBUG
1006         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1007                 sdev->status = SBP_DEV_ATTACHED;
1008         } else {
1009                 device_printf(sdev->target->sbp->fd.dev,
1010                         "%s:%s failed\n", __func__, sdev->bustgtlun);
1011         }
1012         sdev = sbp_next_dev(target, sdev->lun_id + 1);
1013         if (sdev == NULL) {
1014                 free(ccb, M_SBP);
1015                 return;
1016         }
1017         /* reuse ccb */
1018         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1019         ccb->ccb_h.ccb_sdev_ptr = sdev;
1020         xpt_action(ccb);
1021         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1022         sdev->freeze = 1;
1023 }
1024
1025 static void
1026 sbp_cam_scan_target(void *arg)
1027 {
1028         struct sbp_target *target = (struct sbp_target *)arg;
1029         struct sbp_dev *sdev;
1030         union ccb *ccb;
1031
1032         sdev = sbp_next_dev(target, 0);
1033         if (sdev == NULL) {
1034                 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1035                                                         target->target_id);
1036                 return;
1037         }
1038 SBP_DEBUG(0)
1039         device_printf(sdev->target->sbp->fd.dev,
1040                 "%s:%s\n", __func__, sdev->bustgtlun);
1041 END_DEBUG
1042         ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1043         if (ccb == NULL) {
1044                 printf("sbp_cam_scan_target: malloc failed\n");
1045                 return;
1046         }
1047         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1048         ccb->ccb_h.func_code = XPT_SCAN_LUN;
1049         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1050         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1051         ccb->crcn.flags = CAM_FLAG_NONE;
1052         ccb->ccb_h.ccb_sdev_ptr = sdev;
1053
1054         /* The scan is in progress now. */
1055         SBP_LOCK(target->sbp);
1056         xpt_action(ccb);
1057         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1058         sdev->freeze = 1;
1059         SBP_UNLOCK(target->sbp);
1060 }
1061
1062 static __inline void
1063 sbp_scan_dev(struct sbp_dev *sdev)
1064 {
1065         sdev->status = SBP_DEV_PROBE;
1066         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1067                         sbp_cam_scan_target, (void *)sdev->target);
1068 }
1069
1070 static void
1071 sbp_do_attach(struct fw_xfer *xfer)
1072 {
1073         struct sbp_dev *sdev;
1074         struct sbp_target *target;
1075         struct sbp_softc *sbp;
1076
1077         sdev = (struct sbp_dev *)xfer->sc;
1078         target = sdev->target;
1079         sbp = target->sbp;
1080 SBP_DEBUG(0)
1081         device_printf(sdev->target->sbp->fd.dev,
1082                 "%s:%s\n", __func__, sdev->bustgtlun);
1083 END_DEBUG
1084         sbp_xfer_free(xfer);
1085
1086         if (sdev->path == NULL)
1087                 xpt_create_path(&sdev->path, xpt_periph,
1088                         cam_sim_path(target->sbp->sim),
1089                         target->target_id, sdev->lun_id);
1090
1091         /*
1092          * Let CAM scan the bus if we are in the boot process.
1093          * XXX xpt_scan_bus cannot detect LUN larger than 0
1094          * if LUN 0 doesn't exists.
1095          */
1096         if (sbp_cold > 0) {
1097                 sdev->status = SBP_DEV_ATTACHED;
1098                 return;
1099         }
1100
1101         sbp_scan_dev(sdev);
1102         return;
1103 }
1104
1105 static void
1106 sbp_agent_reset_callback(struct fw_xfer *xfer)
1107 {
1108         struct sbp_dev *sdev;
1109
1110         sdev = (struct sbp_dev *)xfer->sc;
1111 SBP_DEBUG(1)
1112         device_printf(sdev->target->sbp->fd.dev,
1113                         "%s:%s\n", __func__, sdev->bustgtlun);
1114 END_DEBUG
1115         if (xfer->resp != 0) {
1116                 device_printf(sdev->target->sbp->fd.dev,
1117                         "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1118         }
1119
1120         sbp_xfer_free(xfer);
1121         if (sdev->path) {
1122                 SBP_LOCK(sdev->target->sbp);
1123                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1124                 sdev->freeze = 0;
1125                 SBP_UNLOCK(sdev->target->sbp);
1126         }
1127 }
1128
1129 static void
1130 sbp_agent_reset(struct sbp_dev *sdev)
1131 {
1132         struct fw_xfer *xfer;
1133         struct fw_pkt *fp;
1134
1135 SBP_DEBUG(0)
1136         device_printf(sdev->target->sbp->fd.dev,
1137                 "%s:%s\n", __func__, sdev->bustgtlun);
1138 END_DEBUG
1139         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1140         if (xfer == NULL)
1141                 return;
1142         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1143                 xfer->hand = sbp_agent_reset_callback;
1144         else
1145                 xfer->hand = sbp_do_attach;
1146         fp = &xfer->send.hdr;
1147         fp->mode.wreqq.data = htonl(0xf);
1148         fw_asyreq(xfer->fc, -1, xfer);
1149         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1150 }
1151
1152 static void
1153 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1154 {
1155         struct sbp_dev *sdev;
1156
1157         sdev = (struct sbp_dev *)xfer->sc;
1158 SBP_DEBUG(1)
1159         device_printf(sdev->target->sbp->fd.dev,
1160                 "%s:%s\n", __func__, sdev->bustgtlun);
1161 END_DEBUG
1162         sbp_xfer_free(xfer);
1163         sbp_agent_reset(sdev);
1164 }
1165
1166 static void
1167 sbp_busy_timeout(struct sbp_dev *sdev)
1168 {
1169         struct fw_pkt *fp;
1170         struct fw_xfer *xfer;
1171 SBP_DEBUG(0)
1172         device_printf(sdev->target->sbp->fd.dev,
1173                 "%s:%s\n", __func__, sdev->bustgtlun);
1174 END_DEBUG
1175         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1176
1177         xfer->hand = sbp_busy_timeout_callback;
1178         fp = &xfer->send.hdr;
1179         fp->mode.wreqq.dest_hi = 0xffff;
1180         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1181         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1182         fw_asyreq(xfer->fc, -1, xfer);
1183 }
1184
1185 static void
1186 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1187 {
1188         struct sbp_dev *sdev;
1189         sdev = (struct sbp_dev *)xfer->sc;
1190
1191 SBP_DEBUG(2)
1192         device_printf(sdev->target->sbp->fd.dev,
1193                 "%s:%s\n", __func__, sdev->bustgtlun);
1194 END_DEBUG
1195         if (xfer->resp != 0) {
1196                 /* XXX */
1197                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1198         }
1199         sbp_xfer_free(xfer);
1200
1201         SBP_LOCK(sdev->target->sbp);
1202         sdev->flags &= ~ORB_POINTER_ACTIVE;
1203
1204         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1205                 struct sbp_ocb *ocb;
1206
1207                 sdev->flags &= ~ORB_POINTER_NEED;
1208                 ocb = STAILQ_FIRST(&sdev->ocbs);
1209                 if (ocb != NULL)
1210                         sbp_orb_pointer(sdev, ocb);
1211         }
1212         SBP_UNLOCK(sdev->target->sbp);
1213         return;
1214 }
1215
1216 static void
1217 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1218 {
1219         struct fw_xfer *xfer;
1220         struct fw_pkt *fp;
1221 SBP_DEBUG(1)
1222         device_printf(sdev->target->sbp->fd.dev,
1223                 "%s:%s 0x%08x\n",
1224                 __func__, sdev->bustgtlun,
1225                 (uint32_t)ocb->bus_addr);
1226 END_DEBUG
1227
1228         mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1229
1230         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1231 SBP_DEBUG(0)
1232                 printf("%s: orb pointer active\n", __func__);
1233 END_DEBUG
1234                 sdev->flags |= ORB_POINTER_NEED;
1235                 return;
1236         }
1237
1238         sdev->flags |= ORB_POINTER_ACTIVE;
1239         xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
1240         if (xfer == NULL)
1241                 return;
1242         xfer->hand = sbp_orb_pointer_callback;
1243
1244         fp = &xfer->send.hdr;
1245         fp->mode.wreqb.len = 8;
1246         fp->mode.wreqb.extcode = 0;
1247         xfer->send.payload[0] =
1248                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1249         xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1250
1251         /*
1252          * sbp_xfer_free() will attempt to acquire
1253          * the SBP lock on entrance.  Also, this removes
1254          * a LOR between the firewire layer and sbp
1255          */
1256         SBP_UNLOCK(sdev->target->sbp);
1257         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1258                         sbp_xfer_free(xfer);
1259                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1260                         xpt_done(ocb->ccb);
1261         }
1262         SBP_LOCK(sdev->target->sbp);
1263 }
1264
1265 static void
1266 sbp_doorbell_callback(struct fw_xfer *xfer)
1267 {
1268         struct sbp_dev *sdev;
1269         sdev = (struct sbp_dev *)xfer->sc;
1270
1271 SBP_DEBUG(1)
1272         device_printf(sdev->target->sbp->fd.dev,
1273                 "%s:%s\n", __func__, sdev->bustgtlun);
1274 END_DEBUG
1275         if (xfer->resp != 0) {
1276                 /* XXX */
1277                 device_printf(sdev->target->sbp->fd.dev,
1278                         "%s: xfer->resp = %d\n", __func__, xfer->resp);
1279         }
1280         sbp_xfer_free(xfer);
1281         sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1282         if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1283                 sdev->flags &= ~ORB_DOORBELL_NEED;
1284                 SBP_LOCK(sdev->target->sbp);
1285                 sbp_doorbell(sdev);
1286                 SBP_UNLOCK(sdev->target->sbp);
1287         }
1288         return;
1289 }
1290
1291 static void
1292 sbp_doorbell(struct sbp_dev *sdev)
1293 {
1294         struct fw_xfer *xfer;
1295         struct fw_pkt *fp;
1296 SBP_DEBUG(1)
1297         device_printf(sdev->target->sbp->fd.dev,
1298                 "%s:%s\n", __func__, sdev->bustgtlun);
1299 END_DEBUG
1300
1301         if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1302                 sdev->flags |= ORB_DOORBELL_NEED;
1303                 return;
1304         }
1305         sdev->flags |= ORB_DOORBELL_ACTIVE;
1306         xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
1307         if (xfer == NULL)
1308                 return;
1309         xfer->hand = sbp_doorbell_callback;
1310         fp = &xfer->send.hdr;
1311         fp->mode.wreqq.data = htonl(0xf);
1312         fw_asyreq(xfer->fc, -1, xfer);
1313 }
1314
1315 static struct fw_xfer *
1316 sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
1317 {
1318         struct fw_xfer *xfer;
1319         struct fw_pkt *fp;
1320         struct sbp_target *target;
1321         int s, new = 0;
1322
1323         mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1324
1325         target = sdev->target;
1326         s = splfw();
1327         xfer = STAILQ_FIRST(&target->xferlist);
1328         if (xfer == NULL) {
1329                 if (target->n_xfer > 5 /* XXX */) {
1330                         printf("sbp: no more xfer for this target\n");
1331                         splx(s);
1332                         return(NULL);
1333                 }
1334                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1335                 if(xfer == NULL){
1336                         printf("sbp: fw_xfer_alloc_buf failed\n");
1337                         splx(s);
1338                         return NULL;
1339                 }
1340                 target->n_xfer ++;
1341                 if (debug)
1342                         printf("sbp: alloc %d xfer\n", target->n_xfer);
1343                 new = 1;
1344         } else {
1345                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1346         }
1347         splx(s);
1348
1349         if (new) {
1350                 xfer->recv.pay_len = 0;
1351                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1352                 xfer->fc = sdev->target->sbp->fd.fc;
1353         }
1354
1355         if (tcode == FWTCODE_WREQB)
1356                 xfer->send.pay_len = 8;
1357         else
1358                 xfer->send.pay_len = 0;
1359
1360         xfer->sc = (caddr_t)sdev;
1361         fp = &xfer->send.hdr;
1362         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1363         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1364         fp->mode.wreqq.tlrt = 0;
1365         fp->mode.wreqq.tcode = tcode;
1366         fp->mode.wreqq.pri = 0;
1367         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1368
1369         return xfer;
1370
1371 }
1372
1373 static struct fw_xfer *
1374 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1375 {
1376         struct sbp_softc *sbp = sdev->target->sbp;
1377         struct fw_xfer *xfer;
1378
1379         SBP_LOCK(sbp);
1380         xfer = sbp_write_cmd_locked(sdev, tcode, offset);
1381         SBP_UNLOCK(sbp);
1382
1383         return (xfer);
1384 }
1385
1386 static void
1387 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1388 {
1389         struct fw_xfer *xfer;
1390         struct fw_pkt *fp;
1391         struct sbp_ocb *ocb;
1392         struct sbp_target *target;
1393         int s, nid;
1394
1395         target = sdev->target;
1396         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1397
1398         s = splfw();
1399         SBP_LOCK(target->sbp);
1400         if (func == ORB_FUN_RUNQUEUE) {
1401                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1402                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1403                         SBP_UNLOCK(target->sbp);
1404                         splx(s);
1405                         return;
1406                 }
1407                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1408                 SBP_UNLOCK(target->sbp);
1409                 goto start;
1410         }
1411         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1412                 SBP_UNLOCK(target->sbp);
1413                 splx(s);
1414                 /* XXX */
1415                 return;
1416         }
1417         SBP_UNLOCK(target->sbp);
1418         ocb->flags = OCB_ACT_MGM;
1419         ocb->sdev = sdev;
1420
1421         bzero((void *)ocb->orb, sizeof(ocb->orb));
1422         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1423         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1424
1425 SBP_DEBUG(0)
1426         device_printf(sdev->target->sbp->fd.dev,
1427                  "%s:%s %s\n",
1428                  __func__,sdev->bustgtlun,
1429                  orb_fun_name[(func>>16)&0xf]);
1430 END_DEBUG
1431         switch (func) {
1432         case ORB_FUN_LGI:
1433                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1434                 ocb->orb[2] = htonl(nid << 16);
1435                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1436                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1437                 if (ex_login)
1438                         ocb->orb[4] |= htonl(ORB_EXV);
1439                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1440                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1441                 break;
1442         case ORB_FUN_ATA:
1443                 ocb->orb[0] = htonl((0 << 16) | 0);
1444                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1445                 /* fall through */
1446         case ORB_FUN_RCN:
1447         case ORB_FUN_LGO:
1448         case ORB_FUN_LUR:
1449         case ORB_FUN_RST:
1450         case ORB_FUN_ATS:
1451                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1452                 break;
1453         }
1454
1455         if (target->mgm_ocb_cur != NULL) {
1456                 /* there is a standing ORB */
1457                 SBP_LOCK(target->sbp);
1458                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1459                 SBP_UNLOCK(target->sbp);
1460                 splx(s);
1461                 return;
1462         }
1463 start:
1464         target->mgm_ocb_cur = ocb;
1465         splx(s);
1466
1467         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1468                                 sbp_mgm_timeout, (caddr_t)ocb);
1469         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1470         if(xfer == NULL){
1471                 return;
1472         }
1473         xfer->hand = sbp_mgm_callback;
1474
1475         fp = &xfer->send.hdr;
1476         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1477         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1478         fp->mode.wreqb.len = 8;
1479         fp->mode.wreqb.extcode = 0;
1480         xfer->send.payload[0] = htonl(nid << 16);
1481         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1482
1483         fw_asyreq(xfer->fc, -1, xfer);
1484 }
1485
1486 static void
1487 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1488 {
1489         struct ccb_scsiio *csio;
1490
1491         csio = &ocb->ccb->csio;
1492         printf("%s:%d:%d XPT_SCSI_IO: "
1493                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1494                 ", flags: 0x%02x, "
1495                 "%db cmd/%db data/%db sense\n",
1496                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1497                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1498                 csio->cdb_io.cdb_bytes[0],
1499                 csio->cdb_io.cdb_bytes[1],
1500                 csio->cdb_io.cdb_bytes[2],
1501                 csio->cdb_io.cdb_bytes[3],
1502                 csio->cdb_io.cdb_bytes[4],
1503                 csio->cdb_io.cdb_bytes[5],
1504                 csio->cdb_io.cdb_bytes[6],
1505                 csio->cdb_io.cdb_bytes[7],
1506                 csio->cdb_io.cdb_bytes[8],
1507                 csio->cdb_io.cdb_bytes[9],
1508                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1509                 csio->cdb_len, csio->dxfer_len,
1510                 csio->sense_len);
1511 }
1512
1513 static void
1514 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1515 {
1516         struct sbp_cmd_status *sbp_cmd_status;
1517         struct scsi_sense_data *sense;
1518
1519         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1520         sense = &ocb->ccb->csio.sense_data;
1521
1522 SBP_DEBUG(0)
1523         sbp_print_scsi_cmd(ocb);
1524         /* XXX need decode status */
1525         printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1526                 ocb->sdev->bustgtlun,
1527                 sbp_cmd_status->status,
1528                 sbp_cmd_status->sfmt,
1529                 sbp_cmd_status->valid,
1530                 sbp_cmd_status->s_key,
1531                 sbp_cmd_status->s_code,
1532                 sbp_cmd_status->s_qlfr,
1533                 sbp_status->len);
1534 END_DEBUG
1535
1536         switch (sbp_cmd_status->status) {
1537         case SCSI_STATUS_CHECK_COND:
1538         case SCSI_STATUS_BUSY:
1539         case SCSI_STATUS_CMD_TERMINATED:
1540                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1541                         sense->error_code = SSD_CURRENT_ERROR;
1542                 }else{
1543                         sense->error_code = SSD_DEFERRED_ERROR;
1544                 }
1545                 if(sbp_cmd_status->valid)
1546                         sense->error_code |= SSD_ERRCODE_VALID;
1547                 sense->flags = sbp_cmd_status->s_key;
1548                 if(sbp_cmd_status->mark)
1549                         sense->flags |= SSD_FILEMARK;
1550                 if(sbp_cmd_status->eom)
1551                         sense->flags |= SSD_EOM;
1552                 if(sbp_cmd_status->ill_len)
1553                         sense->flags |= SSD_ILI;
1554
1555                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1556
1557                 if (sbp_status->len <= 1)
1558                         /* XXX not scsi status. shouldn't be happened */
1559                         sense->extra_len = 0;
1560                 else if (sbp_status->len <= 4)
1561                         /* add_sense_code(_qual), info, cmd_spec_info */
1562                         sense->extra_len = 6;
1563                 else
1564                         /* fru, sense_key_spec */
1565                         sense->extra_len = 10;
1566
1567                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1568
1569                 sense->add_sense_code = sbp_cmd_status->s_code;
1570                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1571                 sense->fru = sbp_cmd_status->fru;
1572
1573                 bcopy(&sbp_cmd_status->s_keydep[0],
1574                     &sense->sense_key_spec[0], 3);
1575
1576                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1577                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1578                                                         | CAM_AUTOSNS_VALID;
1579 /*
1580 {
1581                 uint8_t j, *tmp;
1582                 tmp = sense;
1583                 for( j = 0 ; j < 32 ; j+=8){
1584                         printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1585                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1586                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1587                 }
1588
1589 }
1590 */
1591                 break;
1592         default:
1593                 device_printf(ocb->sdev->target->sbp->fd.dev,
1594                                 "%s:%s unknown scsi status 0x%x\n",
1595                                 __func__, ocb->sdev->bustgtlun,
1596                                 sbp_cmd_status->status);
1597         }
1598 }
1599
1600 static void
1601 sbp_fix_inq_data(struct sbp_ocb *ocb)
1602 {
1603         union ccb *ccb;
1604         struct sbp_dev *sdev;
1605         struct scsi_inquiry_data *inq;
1606
1607         ccb = ocb->ccb;
1608         sdev = ocb->sdev;
1609
1610         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1611                 return;
1612 SBP_DEBUG(1)
1613         device_printf(sdev->target->sbp->fd.dev,
1614                 "%s:%s\n", __func__, sdev->bustgtlun);
1615 END_DEBUG
1616         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1617         switch (SID_TYPE(inq)) {
1618         case T_DIRECT:
1619 #if 0
1620                 /*
1621                  * XXX Convert Direct Access device to RBC.
1622                  * I've never seen FireWire DA devices which support READ_6.
1623                  */
1624                 if (SID_TYPE(inq) == T_DIRECT)
1625                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1626 #endif
1627                 /* fall through */
1628         case T_RBC:
1629                 /*
1630                  * Override vendor/product/revision information.
1631                  * Some devices sometimes return strange strings.
1632                  */
1633 #if 1
1634                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1635                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1636                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1637 #endif
1638                 break;
1639         }
1640         /*
1641          * Force to enable/disable tagged queuing.
1642          * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1643          */
1644         if (sbp_tags > 0)
1645                 inq->flags |= SID_CmdQue;
1646         else if (sbp_tags < 0)
1647                 inq->flags &= ~SID_CmdQue;
1648
1649 }
1650
1651 static void
1652 sbp_recv1(struct fw_xfer *xfer)
1653 {
1654         struct fw_pkt *rfp;
1655 #if NEED_RESPONSE
1656         struct fw_pkt *sfp;
1657 #endif
1658         struct sbp_softc *sbp;
1659         struct sbp_dev *sdev;
1660         struct sbp_ocb *ocb;
1661         struct sbp_login_res *login_res = NULL;
1662         struct sbp_status *sbp_status;
1663         struct sbp_target *target;
1664         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1665         uint32_t addr;
1666 /*
1667         uint32_t *ld;
1668         ld = xfer->recv.buf;
1669 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1670                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1671 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1672 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1673 */
1674         sbp = (struct sbp_softc *)xfer->sc;
1675         if (xfer->resp != 0){
1676                 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1677                 goto done0;
1678         }
1679         if (xfer->recv.payload == NULL){
1680                 printf("sbp_recv: xfer->recv.payload == NULL\n");
1681                 goto done0;
1682         }
1683         rfp = &xfer->recv.hdr;
1684         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1685                 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1686                 goto done0;
1687         }
1688         sbp_status = (struct sbp_status *)xfer->recv.payload;
1689         addr = rfp->mode.wreqb.dest_lo;
1690 SBP_DEBUG(2)
1691         printf("received address 0x%x\n", addr);
1692 END_DEBUG
1693         t = SBP_ADDR2TRG(addr);
1694         if (t >= SBP_NUM_TARGETS) {
1695                 device_printf(sbp->fd.dev,
1696                         "sbp_recv1: invalid target %d\n", t);
1697                 goto done0;
1698         }
1699         target = &sbp->targets[t];
1700         l = SBP_ADDR2LUN(addr);
1701         if (l >= target->num_lun || target->luns[l] == NULL) {
1702                 device_printf(sbp->fd.dev,
1703                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1704                 goto done0;
1705         }
1706         sdev = target->luns[l];
1707
1708         ocb = NULL;
1709         switch (sbp_status->src) {
1710         case 0:
1711         case 1:
1712                 /* check mgm_ocb_cur first */
1713                 ocb  = target->mgm_ocb_cur;
1714                 if (ocb != NULL) {
1715                         if (OCB_MATCH(ocb, sbp_status)) {
1716                                 callout_stop(&target->mgm_ocb_timeout);
1717                                 target->mgm_ocb_cur = NULL;
1718                                 break;
1719                         }
1720                 }
1721                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1722                 if (ocb == NULL) {
1723                         device_printf(sdev->target->sbp->fd.dev,
1724 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1725                                 "%s:%s No ocb(%lx) on the queue\n",
1726 #else
1727                                 "%s:%s No ocb(%x) on the queue\n",
1728 #endif
1729                                 __func__,sdev->bustgtlun,
1730                                 ntohl(sbp_status->orb_lo));
1731                 }
1732                 break;
1733         case 2:
1734                 /* unsolicit */
1735                 device_printf(sdev->target->sbp->fd.dev,
1736                         "%s:%s unsolicit status received\n",
1737                         __func__, sdev->bustgtlun);
1738                 break;
1739         default:
1740                 device_printf(sdev->target->sbp->fd.dev,
1741                         "%s:%s unknown sbp_status->src\n",
1742                         __func__, sdev->bustgtlun);
1743         }
1744
1745         status_valid0 = (sbp_status->src < 2
1746                         && sbp_status->resp == ORB_RES_CMPL
1747                         && sbp_status->dead == 0);
1748         status_valid = (status_valid0 && sbp_status->status == 0);
1749
1750         if (!status_valid0 || debug > 2){
1751                 int status;
1752 SBP_DEBUG(0)
1753                 device_printf(sdev->target->sbp->fd.dev,
1754                         "%s:%s ORB status src:%x resp:%x dead:%x"
1755 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1756                                 " len:%x stat:%x orb:%x%08lx\n",
1757 #else
1758                                 " len:%x stat:%x orb:%x%08x\n",
1759 #endif
1760                         __func__, sdev->bustgtlun,
1761                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1762                         sbp_status->len, sbp_status->status,
1763                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1764 END_DEBUG
1765                 device_printf(sdev->target->sbp->fd.dev,
1766                                 "%s\n", sdev->bustgtlun);
1767                 status = sbp_status->status;
1768                 switch(sbp_status->resp) {
1769                 case 0:
1770                         if (status > MAX_ORB_STATUS0)
1771                                 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1772                         else
1773                                 printf("%s\n", orb_status0[status]);
1774                         break;
1775                 case 1:
1776                         printf("Obj: %s, Error: %s\n",
1777                                 orb_status1_object[(status>>6) & 3],
1778                                 orb_status1_serial_bus_error[status & 0xf]);
1779                         break;
1780                 case 2:
1781                         printf("Illegal request\n");
1782                         break;
1783                 case 3:
1784                         printf("Vendor dependent\n");
1785                         break;
1786                 default:
1787                         printf("unknown respose code %d\n", sbp_status->resp);
1788                 }
1789         }
1790
1791         /* we have to reset the fetch agent if it's dead */
1792         if (sbp_status->dead) {
1793                 if (sdev->path) {
1794                         SBP_LOCK(sbp);
1795                         xpt_freeze_devq(sdev->path, 1);
1796                         sdev->freeze ++;
1797                         SBP_UNLOCK(sbp);
1798                 }
1799                 reset_agent = 1;
1800         }
1801
1802         if (ocb == NULL)
1803                 goto done;
1804
1805         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1806         case ORB_FMT_NOP:
1807                 break;
1808         case ORB_FMT_VED:
1809                 break;
1810         case ORB_FMT_STD:
1811                 switch(ocb->flags) {
1812                 case OCB_ACT_MGM:
1813                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1814                         reset_agent = 0;
1815                         switch(orb_fun) {
1816                         case ORB_FUN_LGI:
1817                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1818                                 login_res = sdev->login;
1819                                 login_res->len = ntohs(login_res->len);
1820                                 login_res->id = ntohs(login_res->id);
1821                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1822                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1823                                 if (status_valid) {
1824 SBP_DEBUG(0)
1825                                         device_printf(sdev->target->sbp->fd.dev,
1826                                                 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1827                                                 __func__, sdev->bustgtlun,
1828                                                 login_res->len, login_res->id,
1829                                                 login_res->cmd_hi, login_res->cmd_lo,
1830                                                 ntohs(login_res->recon_hold));
1831 END_DEBUG
1832                                         sbp_busy_timeout(sdev);
1833                                 } else {
1834                                         /* forgot logout? */
1835                                         device_printf(sdev->target->sbp->fd.dev,
1836                                                 "%s:%s login failed\n",
1837                                                 __func__, sdev->bustgtlun);
1838                                         sdev->status = SBP_DEV_RESET;
1839                                 }
1840                                 break;
1841                         case ORB_FUN_RCN:
1842                                 login_res = sdev->login;
1843                                 if (status_valid) {
1844 SBP_DEBUG(0)
1845                                         device_printf(sdev->target->sbp->fd.dev,
1846                                                 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1847                                                 __func__, sdev->bustgtlun,
1848                                                 login_res->len, login_res->id,
1849                                                 login_res->cmd_hi, login_res->cmd_lo);
1850 END_DEBUG
1851                                         if (sdev->status == SBP_DEV_ATTACHED)
1852                                                 sbp_scan_dev(sdev);
1853                                         else
1854                                                 sbp_agent_reset(sdev);
1855                                 } else {
1856                                         /* reconnection hold time exceed? */
1857 SBP_DEBUG(0)
1858                                         device_printf(sdev->target->sbp->fd.dev,
1859                                                 "%s:%s reconnect failed\n",
1860                                                 __func__, sdev->bustgtlun);
1861 END_DEBUG
1862                                         sbp_login(sdev);
1863                                 }
1864                                 break;
1865                         case ORB_FUN_LGO:
1866                                 sdev->status = SBP_DEV_RESET;
1867                                 break;
1868                         case ORB_FUN_RST:
1869                                 sbp_busy_timeout(sdev);
1870                                 break;
1871                         case ORB_FUN_LUR:
1872                         case ORB_FUN_ATA:
1873                         case ORB_FUN_ATS:
1874                                 sbp_agent_reset(sdev);
1875                                 break;
1876                         default:
1877                                 device_printf(sdev->target->sbp->fd.dev,
1878                                         "%s:%s unknown function %d\n",
1879                                         __func__, sdev->bustgtlun, orb_fun);
1880                                 break;
1881                         }
1882                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1883                         break;
1884                 case OCB_ACT_CMD:
1885                         sdev->timeout = 0;
1886                         if(ocb->ccb != NULL){
1887                                 union ccb *ccb;
1888
1889                                 ccb = ocb->ccb;
1890                                 if(sbp_status->len > 1){
1891                                         sbp_scsi_status(sbp_status, ocb);
1892                                 }else{
1893                                         if(sbp_status->resp != ORB_RES_CMPL){
1894                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1895                                         }else{
1896                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1897                                         }
1898                                 }
1899                                 /* fix up inq data */
1900                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1901                                         sbp_fix_inq_data(ocb);
1902                                 SBP_LOCK(sbp);
1903                                 xpt_done(ccb);
1904                                 SBP_UNLOCK(sbp);
1905                         }
1906                         break;
1907                 default:
1908                         break;
1909                 }
1910         }
1911
1912         if (!use_doorbell)
1913                 sbp_free_ocb(sdev, ocb);
1914 done:
1915         if (reset_agent)
1916                 sbp_agent_reset(sdev);
1917
1918 done0:
1919         xfer->recv.pay_len = SBP_RECV_LEN;
1920 /* The received packet is usually small enough to be stored within
1921  * the buffer. In that case, the controller return ack_complete and
1922  * no respose is necessary.
1923  *
1924  * XXX fwohci.c and firewire.c should inform event_code such as
1925  * ack_complete or ack_pending to upper driver.
1926  */
1927 #if NEED_RESPONSE
1928         xfer->send.off = 0;
1929         sfp = (struct fw_pkt *)xfer->send.buf;
1930         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1931         xfer->dst = sfp->mode.wres.dst;
1932         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1933         xfer->hand = sbp_loginres_callback;
1934
1935         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1936         sfp->mode.wres.tcode = FWTCODE_WRES;
1937         sfp->mode.wres.rtcode = 0;
1938         sfp->mode.wres.pri = 0;
1939
1940         fw_asyreq(xfer->fc, -1, xfer);
1941 #else
1942         /* recycle */
1943         /* we don't need a lock here because bottom half is serialized */
1944         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1945 #endif
1946
1947         return;
1948
1949 }
1950
1951 static void
1952 sbp_recv(struct fw_xfer *xfer)
1953 {
1954         int s;
1955
1956         s = splcam();
1957         sbp_recv1(xfer);
1958         splx(s);
1959 }
1960 /*
1961  * sbp_attach()
1962  */
1963 static int
1964 sbp_attach(device_t dev)
1965 {
1966         struct sbp_softc *sbp;
1967         struct cam_devq *devq;
1968         struct firewire_comm *fc;
1969         int i, s, error;
1970
1971         if (DFLTPHYS > SBP_MAXPHYS)
1972                 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1973                         "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1974                         SBP_MAXPHYS / 1024);
1975
1976         if (!firewire_phydma_enable)
1977                 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1978                         "for SBP over FireWire.\n");
1979 SBP_DEBUG(0)
1980         printf("sbp_attach (cold=%d)\n", cold);
1981 END_DEBUG
1982
1983         if (cold)
1984                 sbp_cold ++;
1985         sbp = ((struct sbp_softc *)device_get_softc(dev));
1986         bzero(sbp, sizeof(struct sbp_softc));
1987         sbp->fd.dev = dev;
1988         sbp->fd.fc = fc = device_get_ivars(dev);
1989         mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1990
1991         if (max_speed < 0)
1992                 max_speed = fc->speed;
1993
1994         error = bus_dma_tag_create(/*parent*/fc->dmat,
1995                                 /* XXX shoud be 4 for sane backend? */
1996                                 /*alignment*/1,
1997                                 /*boundary*/0,
1998                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1999                                 /*highaddr*/BUS_SPACE_MAXADDR,
2000                                 /*filter*/NULL, /*filterarg*/NULL,
2001                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
2002                                 /*maxsegsz*/SBP_SEG_MAX,
2003                                 /*flags*/BUS_DMA_ALLOCNOW,
2004 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
2005                                 /*lockfunc*/busdma_lock_mutex,
2006                                 /*lockarg*/&sbp->mtx,
2007 #endif
2008                                 &sbp->dmat);
2009         if (error != 0) {
2010                 printf("sbp_attach: Could not allocate DMA tag "
2011                         "- error %d\n", error);
2012                         return (ENOMEM);
2013         }
2014
2015         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
2016         if (devq == NULL)
2017                 return (ENXIO);
2018
2019         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
2020                 sbp->targets[i].fwdev = NULL;
2021                 sbp->targets[i].luns = NULL;
2022         }
2023
2024         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2025                                  device_get_unit(dev),
2026                                  &sbp->mtx,
2027                                  /*untagged*/ 1,
2028                                  /*tagged*/ SBP_QUEUE_LEN - 1,
2029                                  devq);
2030
2031         if (sbp->sim == NULL) {
2032                 cam_simq_free(devq);
2033                 return (ENXIO);
2034         }
2035
2036         SBP_LOCK(sbp);
2037         if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2038                 goto fail;
2039
2040         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
2041             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2042                 xpt_bus_deregister(cam_sim_path(sbp->sim));
2043                 goto fail;
2044         }
2045         SBP_UNLOCK(sbp);
2046
2047         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2048         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2049         sbp->fwb.end = sbp->fwb.start + 0xffff;
2050         /* pre-allocate xfer */
2051         STAILQ_INIT(&sbp->fwb.xferlist);
2052         fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2053             /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2054             fc, (void *)sbp, sbp_recv);
2055
2056         fw_bindadd(fc, &sbp->fwb);
2057
2058         sbp->fd.post_busreset = sbp_post_busreset;
2059         sbp->fd.post_explore = sbp_post_explore;
2060
2061         if (fc->status != -1) {
2062                 s = splfw();
2063                 sbp_post_busreset((void *)sbp);
2064                 sbp_post_explore((void *)sbp);
2065                 splx(s);
2066         }
2067         SBP_LOCK(sbp);
2068         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2069         SBP_UNLOCK(sbp);
2070
2071         return (0);
2072 fail:
2073         SBP_UNLOCK(sbp);
2074         cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2075         return (ENXIO);
2076 }
2077
2078 static int
2079 sbp_logout_all(struct sbp_softc *sbp)
2080 {
2081         struct sbp_target *target;
2082         struct sbp_dev *sdev;
2083         int i, j;
2084
2085 SBP_DEBUG(0)
2086         printf("sbp_logout_all\n");
2087 END_DEBUG
2088         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2089                 target = &sbp->targets[i];
2090                 if (target->luns == NULL)
2091                         continue;
2092                 for (j = 0; j < target->num_lun; j++) {
2093                         sdev = target->luns[j];
2094                         if (sdev == NULL)
2095                                 continue;
2096                         callout_stop(&sdev->login_callout);
2097                         if (sdev->status >= SBP_DEV_TOATTACH &&
2098                                         sdev->status <= SBP_DEV_ATTACHED)
2099                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2100                 }
2101         }
2102
2103         return 0;
2104 }
2105
2106 static int
2107 sbp_shutdown(device_t dev)
2108 {
2109         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2110
2111         sbp_logout_all(sbp);
2112         return (0);
2113 }
2114
2115 static void
2116 sbp_free_sdev(struct sbp_dev *sdev)
2117 {
2118         int i;
2119
2120         if (sdev == NULL)
2121                 return;
2122         for (i = 0; i < SBP_QUEUE_LEN; i++)
2123                 bus_dmamap_destroy(sdev->target->sbp->dmat,
2124                     sdev->ocb[i].dmamap);
2125         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2126         free(sdev, M_SBP);
2127         sdev = NULL;
2128 }
2129
2130 static void
2131 sbp_free_target(struct sbp_target *target)
2132 {
2133         struct sbp_softc *sbp;
2134         struct fw_xfer *xfer, *next;
2135         int i;
2136
2137         if (target->luns == NULL)
2138                 return;
2139         callout_stop(&target->mgm_ocb_timeout);
2140         sbp = target->sbp;
2141         for (i = 0; i < target->num_lun; i++)
2142                 sbp_free_sdev(target->luns[i]);
2143
2144         for (xfer = STAILQ_FIRST(&target->xferlist);
2145                         xfer != NULL; xfer = next) {
2146                 next = STAILQ_NEXT(xfer, link);
2147                 fw_xfer_free_buf(xfer);
2148         }
2149         STAILQ_INIT(&target->xferlist);
2150         free(target->luns, M_SBP);
2151         target->num_lun = 0;
2152         target->luns = NULL;
2153         target->fwdev = NULL;
2154 }
2155
2156 static int
2157 sbp_detach(device_t dev)
2158 {
2159         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2160         struct firewire_comm *fc = sbp->fd.fc;
2161         int i;
2162
2163 SBP_DEBUG(0)
2164         printf("sbp_detach\n");
2165 END_DEBUG
2166
2167         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2168                 sbp_cam_detach_target(&sbp->targets[i]);
2169
2170         SBP_LOCK(sbp);
2171         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2172         xpt_free_path(sbp->path);
2173         xpt_bus_deregister(cam_sim_path(sbp->sim));
2174         cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2175         SBP_UNLOCK(sbp);
2176
2177         sbp_logout_all(sbp);
2178
2179         /* XXX wait for logout completion */
2180         pause("sbpdtc", hz/2);
2181
2182         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2183                 sbp_free_target(&sbp->targets[i]);
2184
2185         fw_bindremove(fc, &sbp->fwb);
2186         fw_xferlist_remove(&sbp->fwb.xferlist);
2187
2188         bus_dma_tag_destroy(sbp->dmat);
2189         mtx_destroy(&sbp->mtx);
2190
2191         return (0);
2192 }
2193
2194 static void
2195 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2196 {
2197         if (sdev == NULL)
2198                 return;
2199         if (sdev->status == SBP_DEV_DEAD)
2200                 return;
2201         if (sdev->status == SBP_DEV_RESET)
2202                 return;
2203         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2204         if (sdev->path) {
2205                 SBP_LOCK(sdev->target->sbp);
2206                 xpt_release_devq(sdev->path,
2207                                  sdev->freeze, TRUE);
2208                 sdev->freeze = 0;
2209                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2210                 xpt_free_path(sdev->path);
2211                 sdev->path = NULL;
2212                 SBP_UNLOCK(sdev->target->sbp);
2213         }
2214 }
2215
2216 static void
2217 sbp_cam_detach_target(struct sbp_target *target)
2218 {
2219         int i;
2220
2221         if (target->luns != NULL) {
2222 SBP_DEBUG(0)
2223                 printf("sbp_detach_target %d\n", target->target_id);
2224 END_DEBUG
2225                 callout_stop(&target->scan_callout);
2226                 for (i = 0; i < target->num_lun; i++)
2227                         sbp_cam_detach_sdev(target->luns[i]);
2228         }
2229 }
2230
2231 static void
2232 sbp_target_reset(struct sbp_dev *sdev, int method)
2233 {
2234         int i;
2235         struct sbp_target *target = sdev->target;
2236         struct sbp_dev *tsdev;
2237
2238         for (i = 0; i < target->num_lun; i++) {
2239                 tsdev = target->luns[i];
2240                 if (tsdev == NULL)
2241                         continue;
2242                 if (tsdev->status == SBP_DEV_DEAD)
2243                         continue;
2244                 if (tsdev->status == SBP_DEV_RESET)
2245                         continue;
2246                 SBP_LOCK(target->sbp);
2247                 xpt_freeze_devq(tsdev->path, 1);
2248                 tsdev->freeze ++;
2249                 SBP_UNLOCK(target->sbp);
2250                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2251                 if (method == 2)
2252                         tsdev->status = SBP_DEV_LOGIN;
2253         }
2254         switch(method) {
2255         case 1:
2256                 printf("target reset\n");
2257                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2258                 break;
2259         case 2:
2260                 printf("reset start\n");
2261                 sbp_reset_start(sdev);
2262                 break;
2263         }
2264
2265 }
2266
2267 static void
2268 sbp_mgm_timeout(void *arg)
2269 {
2270         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2271         struct sbp_dev *sdev = ocb->sdev;
2272         struct sbp_target *target = sdev->target;
2273
2274         device_printf(sdev->target->sbp->fd.dev,
2275                 "%s:%s request timeout(mgm orb:0x%08x)\n",
2276                 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2277         target->mgm_ocb_cur = NULL;
2278         sbp_free_ocb(sdev, ocb);
2279 #if 0
2280         /* XXX */
2281         printf("run next request\n");
2282         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2283 #endif
2284         device_printf(sdev->target->sbp->fd.dev,
2285                 "%s:%s reset start\n",
2286                 __func__, sdev->bustgtlun);
2287         sbp_reset_start(sdev);
2288 }
2289
2290 static void
2291 sbp_timeout(void *arg)
2292 {
2293         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2294         struct sbp_dev *sdev = ocb->sdev;
2295
2296         device_printf(sdev->target->sbp->fd.dev,
2297                 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2298                 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2299
2300         sdev->timeout ++;
2301         switch(sdev->timeout) {
2302         case 1:
2303                 printf("agent reset\n");
2304                 SBP_LOCK(sdev->target->sbp);
2305                 xpt_freeze_devq(sdev->path, 1);
2306                 sdev->freeze ++;
2307                 SBP_UNLOCK(sdev->target->sbp);
2308                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2309                 sbp_agent_reset(sdev);
2310                 break;
2311         case 2:
2312         case 3:
2313                 sbp_target_reset(sdev, sdev->timeout - 1);
2314                 break;
2315 #if 0
2316         default:
2317                 /* XXX give up */
2318                 sbp_cam_detach_target(target);
2319                 if (target->luns != NULL)
2320                         free(target->luns, M_SBP);
2321                 target->num_lun = 0;
2322                 target->luns = NULL;
2323                 target->fwdev = NULL;
2324 #endif
2325         }
2326 }
2327
2328 static void
2329 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2330 {
2331
2332         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2333         struct sbp_target *target = NULL;
2334         struct sbp_dev *sdev = NULL;
2335
2336         /* target:lun -> sdev mapping */
2337         if (sbp != NULL
2338                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2339                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2340                 target = &sbp->targets[ccb->ccb_h.target_id];
2341                 if (target->fwdev != NULL
2342                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2343                                 && ccb->ccb_h.target_lun < target->num_lun) {
2344                         sdev = target->luns[ccb->ccb_h.target_lun];
2345                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2346                                 sdev->status != SBP_DEV_PROBE)
2347                                 sdev = NULL;
2348                 }
2349         }
2350
2351 SBP_DEBUG(1)
2352         if (sdev == NULL)
2353                 printf("invalid target %d lun %d\n",
2354                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2355 END_DEBUG
2356
2357         switch (ccb->ccb_h.func_code) {
2358         case XPT_SCSI_IO:
2359         case XPT_RESET_DEV:
2360         case XPT_GET_TRAN_SETTINGS:
2361         case XPT_SET_TRAN_SETTINGS:
2362         case XPT_CALC_GEOMETRY:
2363                 if (sdev == NULL) {
2364 SBP_DEBUG(1)
2365                         printf("%s:%d:%d:func_code 0x%04x: "
2366                                 "Invalid target (target needed)\n",
2367                                 device_get_nameunit(sbp->fd.dev),
2368                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2369                                 ccb->ccb_h.func_code);
2370 END_DEBUG
2371
2372                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2373                         xpt_done(ccb);
2374                         return;
2375                 }
2376                 break;
2377         case XPT_PATH_INQ:
2378         case XPT_NOOP:
2379                 /* The opcodes sometimes aimed at a target (sc is valid),
2380                  * sometimes aimed at the SIM (sc is invalid and target is
2381                  * CAM_TARGET_WILDCARD)
2382                  */
2383                 if (sbp == NULL &&
2384                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2385 SBP_DEBUG(0)
2386                         printf("%s:%d:%d func_code 0x%04x: "
2387                                 "Invalid target (no wildcard)\n",
2388                                 device_get_nameunit(sbp->fd.dev),
2389                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2390                                 ccb->ccb_h.func_code);
2391 END_DEBUG
2392                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2393                         xpt_done(ccb);
2394                         return;
2395                 }
2396                 break;
2397         default:
2398                 /* XXX Hm, we should check the input parameters */
2399                 break;
2400         }
2401
2402         switch (ccb->ccb_h.func_code) {
2403         case XPT_SCSI_IO:
2404         {
2405                 struct ccb_scsiio *csio;
2406                 struct sbp_ocb *ocb;
2407                 int speed;
2408                 void *cdb;
2409
2410                 csio = &ccb->csio;
2411                 mtx_assert(sim->mtx, MA_OWNED);
2412
2413 SBP_DEBUG(2)
2414                 printf("%s:%d:%d XPT_SCSI_IO: "
2415                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2416                         ", flags: 0x%02x, "
2417                         "%db cmd/%db data/%db sense\n",
2418                         device_get_nameunit(sbp->fd.dev),
2419                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2420                         csio->cdb_io.cdb_bytes[0],
2421                         csio->cdb_io.cdb_bytes[1],
2422                         csio->cdb_io.cdb_bytes[2],
2423                         csio->cdb_io.cdb_bytes[3],
2424                         csio->cdb_io.cdb_bytes[4],
2425                         csio->cdb_io.cdb_bytes[5],
2426                         csio->cdb_io.cdb_bytes[6],
2427                         csio->cdb_io.cdb_bytes[7],
2428                         csio->cdb_io.cdb_bytes[8],
2429                         csio->cdb_io.cdb_bytes[9],
2430                         ccb->ccb_h.flags & CAM_DIR_MASK,
2431                         csio->cdb_len, csio->dxfer_len,
2432                         csio->sense_len);
2433 END_DEBUG
2434                 if(sdev == NULL){
2435                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2436                         xpt_done(ccb);
2437                         return;
2438                 }
2439 #if 0
2440                 /* if we are in probe stage, pass only probe commands */
2441                 if (sdev->status == SBP_DEV_PROBE) {
2442                         char *name;
2443                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2444                         printf("probe stage, periph name: %s\n", name);
2445                         if (strcmp(name, "probe") != 0) {
2446                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2447                                 xpt_done(ccb);
2448                                 return;
2449                         }
2450                 }
2451 #endif
2452                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2453                         ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2454                         if (sdev->freeze == 0) {
2455                                 SBP_LOCK(sdev->target->sbp);
2456                                 xpt_freeze_devq(sdev->path, 1);
2457                                 sdev->freeze ++;
2458                                 SBP_UNLOCK(sdev->target->sbp);
2459                         }
2460                         xpt_done(ccb);
2461                         return;
2462                 }
2463
2464                 ocb->flags = OCB_ACT_CMD;
2465                 ocb->sdev = sdev;
2466                 ocb->ccb = ccb;
2467                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2468                 ocb->orb[0] = htonl(1 << 31);
2469                 ocb->orb[1] = 0;
2470                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2471                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2472                 speed = min(target->fwdev->speed, max_speed);
2473                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2474                                                 | ORB_CMD_MAXP(speed + 7));
2475                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2476                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2477                 }
2478
2479                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2480                         printf("sbp: CAM_SCATTER_VALID\n");
2481                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2482                         printf("sbp: CAM_DATA_PHYS\n");
2483
2484                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2485                         cdb = (void *)csio->cdb_io.cdb_ptr;
2486                 else
2487                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2488                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2489 /*
2490 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2491 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2492 */
2493                 if (ccb->csio.dxfer_len > 0) {
2494                         int s, error;
2495
2496                         s = splsoftvm();
2497                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2498                                         /*dma map*/ocb->dmamap,
2499                                         ccb->csio.data_ptr,
2500                                         ccb->csio.dxfer_len,
2501                                         sbp_execute_ocb,
2502                                         ocb,
2503                                         /*flags*/0);
2504                         splx(s);
2505                         if (error)
2506                                 printf("sbp: bus_dmamap_load error %d\n", error);
2507                 } else
2508                         sbp_execute_ocb(ocb, NULL, 0, 0);
2509                 break;
2510         }
2511         case XPT_CALC_GEOMETRY:
2512         {
2513                 struct ccb_calc_geometry *ccg;
2514 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2515                 uint32_t size_mb;
2516                 uint32_t secs_per_cylinder;
2517                 int extended = 1;
2518 #endif
2519
2520                 ccg = &ccb->ccg;
2521                 if (ccg->block_size == 0) {
2522                         printf("sbp_action1: block_size is 0.\n");
2523                         ccb->ccb_h.status = CAM_REQ_INVALID;
2524                         xpt_done(ccb);
2525                         break;
2526                 }
2527 SBP_DEBUG(1)
2528                 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2529 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2530                         "Volume size = %d\n",
2531 #else
2532                         "Volume size = %jd\n",
2533 #endif
2534                         device_get_nameunit(sbp->fd.dev),
2535                         cam_sim_path(sbp->sim),
2536                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2537 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2538                         (uintmax_t)
2539 #endif
2540                                 ccg->volume_size);
2541 END_DEBUG
2542
2543 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2544                 size_mb = ccg->volume_size
2545                         / ((1024L * 1024L) / ccg->block_size);
2546
2547                 if (size_mb > 1024 && extended) {
2548                         ccg->heads = 255;
2549                         ccg->secs_per_track = 63;
2550                 } else {
2551                         ccg->heads = 64;
2552                         ccg->secs_per_track = 32;
2553                 }
2554                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2555                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2556                 ccb->ccb_h.status = CAM_REQ_CMP;
2557 #else
2558                 cam_calc_geometry(ccg, /*extended*/1);
2559 #endif
2560                 xpt_done(ccb);
2561                 break;
2562         }
2563         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
2564         {
2565
2566 SBP_DEBUG(1)
2567                 printf("%s:%d:XPT_RESET_BUS: \n",
2568                         device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2569 END_DEBUG
2570
2571                 ccb->ccb_h.status = CAM_REQ_INVALID;
2572                 xpt_done(ccb);
2573                 break;
2574         }
2575         case XPT_PATH_INQ:              /* Path routing inquiry */
2576         {
2577                 struct ccb_pathinq *cpi = &ccb->cpi;
2578
2579 SBP_DEBUG(1)
2580                 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2581                         device_get_nameunit(sbp->fd.dev),
2582                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2583 END_DEBUG
2584                 cpi->version_num = 1; /* XXX??? */
2585                 cpi->hba_inquiry = PI_TAG_ABLE;
2586                 cpi->target_sprt = 0;
2587                 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2588                 cpi->hba_eng_cnt = 0;
2589                 cpi->max_target = SBP_NUM_TARGETS - 1;
2590                 cpi->max_lun = SBP_NUM_LUNS - 1;
2591                 cpi->initiator_id = SBP_INITIATOR;
2592                 cpi->bus_id = sim->bus_id;
2593                 cpi->base_transfer_speed = 400 * 1000 / 8;
2594                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2595                 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2596                 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2597                 cpi->unit_number = sim->unit_number;
2598                 cpi->transport = XPORT_SPI;     /* XX should have a FireWire */
2599                 cpi->transport_version = 2;
2600                 cpi->protocol = PROTO_SCSI;
2601                 cpi->protocol_version = SCSI_REV_2;
2602
2603                 cpi->ccb_h.status = CAM_REQ_CMP;
2604                 xpt_done(ccb);
2605                 break;
2606         }
2607         case XPT_GET_TRAN_SETTINGS:
2608         {
2609                 struct ccb_trans_settings *cts = &ccb->cts;
2610                 struct ccb_trans_settings_scsi *scsi =
2611                     &cts->proto_specific.scsi;
2612                 struct ccb_trans_settings_spi *spi =
2613                     &cts->xport_specific.spi;
2614
2615                 cts->protocol = PROTO_SCSI;
2616                 cts->protocol_version = SCSI_REV_2;
2617                 cts->transport = XPORT_SPI;     /* should have a FireWire */
2618                 cts->transport_version = 2;
2619                 spi->valid = CTS_SPI_VALID_DISC;
2620                 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2621                 scsi->valid = CTS_SCSI_VALID_TQ;
2622                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2623 SBP_DEBUG(1)
2624                 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2625                         device_get_nameunit(sbp->fd.dev),
2626                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2627 END_DEBUG
2628                 cts->ccb_h.status = CAM_REQ_CMP;
2629                 xpt_done(ccb);
2630                 break;
2631         }
2632         case XPT_ABORT:
2633                 ccb->ccb_h.status = CAM_UA_ABORT;
2634                 xpt_done(ccb);
2635                 break;
2636         case XPT_SET_TRAN_SETTINGS:
2637                 /* XXX */
2638         default:
2639                 ccb->ccb_h.status = CAM_REQ_INVALID;
2640                 xpt_done(ccb);
2641                 break;
2642         }
2643         return;
2644 }
2645
2646 static void
2647 sbp_action(struct cam_sim *sim, union ccb *ccb)
2648 {
2649         int s;
2650
2651         s = splfw();
2652         sbp_action1(sim, ccb);
2653         splx(s);
2654 }
2655
2656 static void
2657 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2658 {
2659         int i;
2660         struct sbp_ocb *ocb;
2661         struct sbp_ocb *prev;
2662         bus_dma_segment_t *s;
2663
2664         if (error)
2665                 printf("sbp_execute_ocb: error=%d\n", error);
2666
2667         ocb = (struct sbp_ocb *)arg;
2668
2669 SBP_DEBUG(2)
2670         printf("sbp_execute_ocb: seg %d", seg);
2671         for (i = 0; i < seg; i++)
2672 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2673                 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2674 #else
2675                 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2676                                         (uintmax_t)segments[i].ds_len);
2677 #endif
2678         printf("\n");
2679 END_DEBUG
2680
2681         if (seg == 1) {
2682                 /* direct pointer */
2683                 s = &segments[0];
2684                 if (s->ds_len > SBP_SEG_MAX)
2685                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2686                 ocb->orb[3] = htonl(s->ds_addr);
2687                 ocb->orb[4] |= htonl(s->ds_len);
2688         } else if(seg > 1) {
2689                 /* page table */
2690                 for (i = 0; i < seg; i++) {
2691                         s = &segments[i];
2692 SBP_DEBUG(0)
2693                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2694                         if (s->ds_len < 16)
2695                                 printf("sbp_execute_ocb: warning, "
2696 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2697                                         "segment length(%d) is less than 16."
2698 #else
2699                                         "segment length(%zd) is less than 16."
2700 #endif
2701                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2702 END_DEBUG
2703                         if (s->ds_len > SBP_SEG_MAX)
2704                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2705                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2706                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2707                 }
2708                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2709         }
2710
2711         if (seg > 0)
2712                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2713                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2714                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2715         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2716         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2717         if (use_doorbell) {
2718                 if (prev == NULL) {
2719                         if (ocb->sdev->last_ocb != NULL)
2720                                 sbp_doorbell(ocb->sdev);
2721                         else
2722                                 sbp_orb_pointer(ocb->sdev, ocb);
2723                 }
2724         } else {
2725                 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2726                         ocb->sdev->flags &= ~ORB_LINK_DEAD;
2727                         sbp_orb_pointer(ocb->sdev, ocb);
2728                 }
2729         }
2730 }
2731
2732 static void
2733 sbp_poll(struct cam_sim *sim)
2734 {
2735         struct sbp_softc *sbp;
2736         struct firewire_comm *fc;
2737
2738         sbp = (struct sbp_softc *)sim->softc;
2739         fc = sbp->fd.fc;
2740
2741         fc->poll(fc, 0, -1);
2742
2743         return;
2744 }
2745
2746 static struct sbp_ocb *
2747 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2748 {
2749         struct sbp_ocb *ocb;
2750         struct sbp_ocb *next;
2751         int s = splfw(), order = 0;
2752         int flags;
2753
2754 SBP_DEBUG(1)
2755         device_printf(sdev->target->sbp->fd.dev,
2756 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2757         "%s:%s 0x%08lx src %d\n",
2758 #else
2759         "%s:%s 0x%08x src %d\n",
2760 #endif
2761             __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2762 END_DEBUG
2763         SBP_LOCK(sdev->target->sbp);
2764         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2765                 next = STAILQ_NEXT(ocb, ocb);
2766                 flags = ocb->flags;
2767                 if (OCB_MATCH(ocb, sbp_status)) {
2768                         /* found */
2769                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2770                         if (ocb->ccb != NULL)
2771                                 untimeout(sbp_timeout, (caddr_t)ocb,
2772                                                 ocb->ccb->ccb_h.timeout_ch);
2773                         if (ntohl(ocb->orb[4]) & 0xffff) {
2774                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2775                                         ocb->dmamap,
2776                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2777                                         BUS_DMASYNC_POSTREAD :
2778                                         BUS_DMASYNC_POSTWRITE);
2779                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2780                                         ocb->dmamap);
2781                         }
2782                         if (!use_doorbell) {
2783                                 if (sbp_status->src == SRC_NO_NEXT) {
2784                                         if (next != NULL)
2785                                                 sbp_orb_pointer(sdev, next);
2786                                         else if (order > 0) {
2787                                                 /*
2788                                                  * Unordered execution
2789                                                  * We need to send pointer for
2790                                                  * next ORB
2791                                                  */
2792                                                 sdev->flags |= ORB_LINK_DEAD;
2793                                         }
2794                                 }
2795                         } else {
2796                                 /*
2797                                  * XXX this is not correct for unordered
2798                                  * execution.
2799                                  */
2800                                 if (sdev->last_ocb != NULL) {
2801                                         SBP_UNLOCK(sdev->target->sbp);
2802                                         sbp_free_ocb(sdev, sdev->last_ocb);
2803                                         SBP_LOCK(sdev->target->sbp);
2804                                 }
2805                                 sdev->last_ocb = ocb;
2806                                 if (next != NULL &&
2807                                     sbp_status->src == SRC_NO_NEXT)
2808                                         sbp_doorbell(sdev);
2809                         }
2810                         break;
2811                 } else
2812                         order ++;
2813         }
2814         SBP_UNLOCK(sdev->target->sbp);
2815         splx(s);
2816 SBP_DEBUG(0)
2817         if (ocb && order > 0) {
2818                 device_printf(sdev->target->sbp->fd.dev,
2819                         "%s:%s unordered execution order:%d\n",
2820                         __func__, sdev->bustgtlun, order);
2821         }
2822 END_DEBUG
2823         return (ocb);
2824 }
2825
2826 static struct sbp_ocb *
2827 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2828 {
2829         int s = splfw();
2830         struct sbp_ocb *prev, *prev2;
2831
2832         mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2833 SBP_DEBUG(1)
2834         device_printf(sdev->target->sbp->fd.dev,
2835 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2836         "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2837 #else
2838         "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2839 #endif
2840 END_DEBUG
2841         prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2842         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2843
2844         if (ocb->ccb != NULL)
2845                 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2846                                         (ocb->ccb->ccb_h.timeout * hz) / 1000);
2847
2848         if (use_doorbell && prev == NULL)
2849                 prev2 = sdev->last_ocb;
2850
2851         if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2852 SBP_DEBUG(1)
2853 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2854                 printf("linking chain 0x%x -> 0x%x\n",
2855                     prev2->bus_addr, ocb->bus_addr);
2856 #else
2857                 printf("linking chain 0x%jx -> 0x%jx\n",
2858                     (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2859 #endif
2860 END_DEBUG
2861                 /*
2862                  * Suppress compiler optimization so that orb[1] must be written first.
2863                  * XXX We may need an explicit memory barrier for other architectures
2864                  * other than i386/amd64.
2865                  */
2866                 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2867                 *(volatile uint32_t *)&prev2->orb[0] = 0;
2868         }
2869         splx(s);
2870
2871         return prev;
2872 }
2873
2874 static struct sbp_ocb *
2875 sbp_get_ocb(struct sbp_dev *sdev)
2876 {
2877         struct sbp_ocb *ocb;
2878         int s = splfw();
2879
2880         mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2881         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2882         if (ocb == NULL) {
2883                 sdev->flags |= ORB_SHORTAGE;
2884                 printf("ocb shortage!!!\n");
2885                 splx(s);
2886                 return NULL;
2887         }
2888         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2889         splx(s);
2890         ocb->ccb = NULL;
2891         return (ocb);
2892 }
2893
2894 static void
2895 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2896 {
2897         ocb->flags = 0;
2898         ocb->ccb = NULL;
2899
2900         SBP_LOCK(sdev->target->sbp);
2901         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2902         if ((sdev->flags & ORB_SHORTAGE) != 0) {
2903                 int count;
2904
2905                 sdev->flags &= ~ORB_SHORTAGE;
2906                 count = sdev->freeze;
2907                 sdev->freeze = 0;
2908                 xpt_release_devq(sdev->path, count, TRUE);
2909         }
2910         SBP_UNLOCK(sdev->target->sbp);
2911 }
2912
2913 static void
2914 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2915 {
2916         struct sbp_dev *sdev;
2917
2918         sdev = ocb->sdev;
2919 SBP_DEBUG(0)
2920         device_printf(sdev->target->sbp->fd.dev,
2921 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2922         "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2923 #else
2924         "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2925 #endif
2926 END_DEBUG
2927 SBP_DEBUG(1)
2928         if (ocb->ccb != NULL)
2929                 sbp_print_scsi_cmd(ocb);
2930 END_DEBUG
2931         if (ntohl(ocb->orb[4]) & 0xffff) {
2932                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2933                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2934                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2935                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2936         }
2937         if (ocb->ccb != NULL) {
2938                 untimeout(sbp_timeout, (caddr_t)ocb,
2939                                         ocb->ccb->ccb_h.timeout_ch);
2940                 ocb->ccb->ccb_h.status = status;
2941                 SBP_LOCK(sdev->target->sbp);
2942                 xpt_done(ocb->ccb);
2943                 SBP_UNLOCK(sdev->target->sbp);
2944         }
2945         sbp_free_ocb(sdev, ocb);
2946 }
2947
2948 static void
2949 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2950 {
2951         int s;
2952         struct sbp_ocb *ocb, *next;
2953         STAILQ_HEAD(, sbp_ocb) temp;
2954
2955         s = splfw();
2956
2957         STAILQ_INIT(&temp);
2958         SBP_LOCK(sdev->target->sbp);
2959         STAILQ_CONCAT(&temp, &sdev->ocbs);
2960         STAILQ_INIT(&sdev->ocbs);
2961         SBP_UNLOCK(sdev->target->sbp);
2962
2963         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2964                 next = STAILQ_NEXT(ocb, ocb);
2965                 sbp_abort_ocb(ocb, status);
2966         }
2967         if (sdev->last_ocb != NULL) {
2968                 sbp_free_ocb(sdev, sdev->last_ocb);
2969                 sdev->last_ocb = NULL;
2970         }
2971
2972         splx(s);
2973 }
2974
2975 static devclass_t sbp_devclass;
2976
2977 static device_method_t sbp_methods[] = {
2978         /* device interface */
2979         DEVMETHOD(device_identify,      sbp_identify),
2980         DEVMETHOD(device_probe,         sbp_probe),
2981         DEVMETHOD(device_attach,        sbp_attach),
2982         DEVMETHOD(device_detach,        sbp_detach),
2983         DEVMETHOD(device_shutdown,      sbp_shutdown),
2984
2985         { 0, 0 }
2986 };
2987
2988 static driver_t sbp_driver = {
2989         "sbp",
2990         sbp_methods,
2991         sizeof(struct sbp_softc),
2992 };
2993 #ifdef __DragonFly__
2994 DECLARE_DUMMY_MODULE(sbp);
2995 #endif
2996 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2997 MODULE_VERSION(sbp, 1);
2998 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2999 MODULE_DEPEND(sbp, cam, 1, 1, 1);