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