sys/dev/disk/sbp/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: src/sys/dev/firewire/sbp.c,v 1.74 2004/01/08 14:58:09 simokawa Exp $
  35  * $DragonFly: src/sys/dev/disk/sbp/sbp.c,v 1.15 2005/10/28 03:25:41 dillon Exp $
  36  *
  37  */
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/conf.h>
  42 #include <sys/module.h>
  43 #include <sys/bus.h>
  44 #include <sys/kernel.h>
  45 #include <sys/sysctl.h>
  46 #include <machine/bus.h>
  47 #include <sys/malloc.h>
  48 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
  49 #include <sys/lock.h>
  50 #include <sys/mutex.h>
  51 #endif
  52
  53 #if defined(__DragonFly__) || __FreeBSD_version < 500106
  54 #include <sys/devicestat.h>     /* for struct devstat */
  55 #endif
  56 #include <sys/thread2.h>
  57
  58 #ifdef __DragonFly__
  59 #include <bus/cam/cam.h>
  60 #include <bus/cam/cam_ccb.h>
  61 #include <bus/cam/cam_sim.h>
  62 #include <bus/cam/cam_xpt_sim.h>
  63 #include <bus/cam/cam_debug.h>
  64 #include <bus/cam/cam_periph.h>
  65 #include <bus/cam/scsi/scsi_all.h>
  66
  67 #include <bus/firewire/firewire.h>
  68 #include <bus/firewire/firewirereg.h>
  69 #include <bus/firewire/fwdma.h>
  70 #include <bus/firewire/iec13213.h>
  71 #include "sbp.h"
  72 #else
  73 #include <cam/cam.h>
  74 #include <cam/cam_ccb.h>
  75 #include <cam/cam_sim.h>
  76 #include <cam/cam_xpt_sim.h>
  77 #include <cam/cam_debug.h>
  78 #include <cam/cam_periph.h>
  79 #include <cam/scsi/scsi_all.h>
  80 #endif
  81
  82 #define ccb_sdev_ptr    spriv_ptr0
  83 #define ccb_sbp_ptr     spriv_ptr1
  84
  85 #define SBP_NUM_TARGETS 8 /* MAX 64 */
  86 /*
  87  * Scan_bus doesn't work for more than 8 LUNs
  88  * because of CAM_SCSI2_MAXLUN in cam_xpt.c
  89  */
  90 #define SBP_NUM_LUNS 64
  91 #define SBP_DMA_SIZE PAGE_SIZE
  92 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
  93 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
  94 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
  95
  96 /*
  97  * STATUS FIFO addressing
  98  *   bit
  99  * -----------------------
 100  *  0- 1( 2): 0 (alingment)
 101  *  2- 7( 6): target
 102  *  8-15( 8): lun
 103  * 16-31( 8): reserved
 104  * 32-47(16): SBP_BIND_HI
 105  * 48-64(16): bus_id, node_id
 106  */
 107 #define SBP_BIND_HI 0x1
 108 #define SBP_DEV2ADDR(t, l) \
 109         (((u_int64_t)SBP_BIND_HI << 32) \
 110         | (((l) & 0xff) << 8) \
 111         | (((t) & 0x3f) << 2))
 112 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
 113 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
 114 #define SBP_INITIATOR 7
 115
 116 static char *orb_fun_name[] = {
 117         ORB_FUN_NAMES
 118 };
 119
 120 static int debug = 0;
 121 static int auto_login = 1;
 122 static int max_speed = -1;
 123 static int sbp_cold = 1;
 124 static int ex_login = 1;
 125 static int login_delay = 1000;  /* msec */
 126 static int scan_delay = 500;    /* msec */
 127 static int sbp_tags = 0;
 128
 129 SYSCTL_DECL(_hw_firewire);
 130 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 131 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 132         "SBP debug flag");
 133 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 134         "SBP perform login automatically");
 135 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 136         "SBP transfer max speed");
 137 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 138         &ex_login, 0, "SBP transfer max speed");
 139 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 140         &login_delay, 0, "SBP login delay in msec");
 141 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 142         &scan_delay, 0, "SBP scan delay in msec");
 143 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 144         "SBP tagged queuing support");
 145
 146 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 147 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 148 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 149 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 150 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 151 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 152
 153 #define NEED_RESPONSE 0
 154
 155 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 156 #ifdef __sparc64__ /* iommu */
 157 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
 158 #else
 159 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
 160 #endif
 161 struct sbp_ocb {
 162         STAILQ_ENTRY(sbp_ocb)   ocb;
 163         union ccb       *ccb;
 164         bus_addr_t      bus_addr;
 165         u_int32_t       orb[8];
 166 #define IND_PTR_OFFSET  (8*sizeof(u_int32_t))
 167         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 168         struct sbp_dev  *sdev;
 169         int             flags; /* XXX should be removed */
 170         bus_dmamap_t    dmamap;
 171 };
 172
 173 #define OCB_ACT_MGM 0
 174 #define OCB_ACT_CMD 1
 175 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 176
 177 struct sbp_dev{
 178 #define SBP_DEV_RESET           0       /* accept login */
 179 #define SBP_DEV_LOGIN           1       /* to login */
 180 #if 0
 181 #define SBP_DEV_RECONN          2       /* to reconnect */
 182 #endif
 183 #define SBP_DEV_TOATTACH        3       /* to attach */
 184 #define SBP_DEV_PROBE           4       /* scan lun */
 185 #define SBP_DEV_ATTACHED        5       /* in operation */
 186 #define SBP_DEV_DEAD            6       /* unavailable unit */
 187 #define SBP_DEV_RETRY           7       /* unavailable unit */
 188         u_int8_t status:4,
 189                  timeout:4;
 190         u_int8_t type;
 191         u_int16_t lun_id;
 192         u_int16_t freeze;
 193 #define ORB_LINK_DEAD           (1 << 0)
 194 #define VALID_LUN               (1 << 1)
 195 #define ORB_POINTER_ACTIVE      (1 << 2)
 196 #define ORB_POINTER_NEED        (1 << 3)
 197         u_int16_t flags;
 198         struct cam_path *path;
 199         struct sbp_target *target;
 200         struct fwdma_alloc dma;
 201         struct sbp_login_res *login;
 202         struct callout login_callout;
 203         struct sbp_ocb *ocb;
 204         STAILQ_HEAD(, sbp_ocb) ocbs;
 205         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 206         char vendor[32];
 207         char product[32];
 208         char revision[10];
 209 };
 210
 211 struct sbp_target {
 212         int target_id;
 213         int num_lun;
 214         struct sbp_dev  **luns;
 215         struct sbp_softc *sbp;
 216         struct fw_device *fwdev;
 217         u_int32_t mgm_hi, mgm_lo;
 218         struct sbp_ocb *mgm_ocb_cur;
 219         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 220         struct callout mgm_ocb_timeout;
 221         struct callout scan_callout;
 222         STAILQ_HEAD(, fw_xfer) xferlist;
 223         int n_xfer;
 224 };
 225
 226 struct sbp_softc {
 227         struct firewire_dev_comm fd;
 228         struct cam_sim  *sim;
 229         struct cam_path  *path;
 230         struct sbp_target targets[SBP_NUM_TARGETS];
 231         struct fw_bind fwb;
 232         bus_dma_tag_t   dmat;
 233         struct timeval last_busreset;
 234 #define SIMQ_FREEZED 1
 235         int flags;
 236 };
 237
 238 static void sbp_post_explore (void *);
 239 static void sbp_recv (struct fw_xfer *);
 240 static void sbp_mgm_callback (struct fw_xfer *);
 241 #if 0
 242 static void sbp_cmd_callback (struct fw_xfer *);
 243 #endif
 244 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 245 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 246 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 247 static void sbp_abort_ocb (struct sbp_ocb *, int);
 248 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 249 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 250 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 251 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 252 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 253 static void sbp_cam_detach_sdev(struct sbp_dev *);
 254 static void sbp_free_sdev(struct sbp_dev *);
 255 static void sbp_cam_detach_target (struct sbp_target *);
 256 static void sbp_free_target (struct sbp_target *);
 257 static void sbp_mgm_timeout (void *arg);
 258 static void sbp_timeout (void *arg);
 259 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 260
 261 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 262
 263 /* cam related functions */
 264 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 265 static void     sbp_poll(struct cam_sim *sim);
 266 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 267 static void     sbp_cam_scan_target(void *arg);
 268
 269 static char *orb_status0[] = {
 270         /* 0 */ "No additional information to report",
 271         /* 1 */ "Request type not supported",
 272         /* 2 */ "Speed not supported",
 273         /* 3 */ "Page size not supported",
 274         /* 4 */ "Access denied",
 275         /* 5 */ "Logical unit not supported",
 276         /* 6 */ "Maximum payload too small",
 277         /* 7 */ "Reserved for future standardization",
 278         /* 8 */ "Resources unavailable",
 279         /* 9 */ "Function rejected",
 280         /* A */ "Login ID not recognized",
 281         /* B */ "Dummy ORB completed",
 282         /* C */ "Request aborted",
 283         /* FF */ "Unspecified error"
 284 #define MAX_ORB_STATUS0 0xd
 285 };
 286
 287 static char *orb_status1_object[] = {
 288         /* 0 */ "Operation request block (ORB)",
 289         /* 1 */ "Data buffer",
 290         /* 2 */ "Page table",
 291         /* 3 */ "Unable to specify"
 292 };
 293
 294 static char *orb_status1_serial_bus_error[] = {
 295         /* 0 */ "Missing acknowledge",
 296         /* 1 */ "Reserved; not to be used",
 297         /* 2 */ "Time-out error",
 298         /* 3 */ "Reserved; not to be used",
 299         /* 4 */ "Busy retry limit exceeded(X)",
 300         /* 5 */ "Busy retry limit exceeded(A)",
 301         /* 6 */ "Busy retry limit exceeded(B)",
 302         /* 7 */ "Reserved for future standardization",
 303         /* 8 */ "Reserved for future standardization",
 304         /* 9 */ "Reserved for future standardization",
 305         /* A */ "Reserved for future standardization",
 306         /* B */ "Tardy retry limit exceeded",
 307         /* C */ "Conflict error",
 308         /* D */ "Data error",
 309         /* E */ "Type error",
 310         /* F */ "Address error"
 311 };
 312
 313 /*
 314  * sbp_probe()
 315  */
 316 static int
 317 sbp_probe(device_t dev)
 318 {
 319         device_t pa;
 320
 321 SBP_DEBUG(0)
 322         printf("sbp_probe\n");
 323 END_DEBUG
 324
 325         pa = device_get_parent(dev);
 326         if(device_get_unit(dev) != device_get_unit(pa)){
 327                 return(ENXIO);
 328         }
 329
 330         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 331
 332         if (bootverbose)
 333                 debug = bootverbose;
 334         return (0);
 335 }
 336
 337 static void
 338 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
 339 {
 340         struct fw_device *fwdev;
 341
 342         printf("%s:%d:%d ",
 343                 device_get_nameunit(sdev->target->sbp->fd.dev),
 344                 sdev->target->target_id,
 345                 sdev->lun_id
 346         );
 347         if (new == 2) {
 348                 return;
 349         }
 350         fwdev = sdev->target->fwdev;
 351         printf("ordered:%d type:%d EUI:%08x%08x node:%d "
 352                 "speed:%d maxrec:%d",
 353                 (sdev->type & 0x40) >> 6,
 354                 (sdev->type & 0x1f),
 355                 fwdev->eui.hi,
 356                 fwdev->eui.lo,
 357                 fwdev->dst,
 358                 fwdev->speed,
 359                 fwdev->maxrec
 360         );
 361         if (new)
 362                 printf(" new!\n");
 363         else
 364                 printf("\n");
 365         sbp_show_sdev_info(sdev, 2);
 366         printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
 367 }
 368
 369 static struct {
 370         int bus;
 371         int target;
 372         struct fw_eui64 eui;
 373 } wired[] = {
 374         /* Bus  Target  EUI64 */
 375 #if 0
 376         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 377         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 378         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 379 #endif
 380         {-1,    -1,     {0,0}}
 381 };
 382
 383 static int
 384 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 385 {
 386         int bus, i, target=-1;
 387         char w[SBP_NUM_TARGETS];
 388
 389         bzero(w, sizeof(w));
 390         bus = device_get_unit(sbp->fd.dev);
 391
 392         /* XXX wired-down configuration should be gotten from
 393                                         tunable or device hint */
 394         for (i = 0; wired[i].bus >= 0; i ++) {
 395                 if (wired[i].bus == bus) {
 396                         w[wired[i].target] = 1;
 397                         if (wired[i].eui.hi == fwdev->eui.hi &&
 398                                         wired[i].eui.lo == fwdev->eui.lo)
 399                                 target = wired[i].target;
 400                 }
 401         }
 402         if (target >= 0) {
 403                 if(target < SBP_NUM_TARGETS &&
 404                                 sbp->targets[target].fwdev == NULL)
 405                         return(target);
 406                 device_printf(sbp->fd.dev,
 407                         "target %d is not free for %08x:%08x\n",
 408                         target, fwdev->eui.hi, fwdev->eui.lo);
 409                 target = -1;
 410         }
 411         /* non-wired target */
 412         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 413                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 414                         target = i;
 415                         break;
 416                 }
 417
 418         return target;
 419 }
 420
 421 static void
 422 sbp_alloc_lun(struct sbp_target *target)
 423 {
 424         struct crom_context cc;
 425         struct csrreg *reg;
 426         struct sbp_dev *sdev, **newluns;
 427         struct sbp_softc *sbp;
 428         int maxlun, lun, i;
 429
 430         sbp = target->sbp;
 431         crom_init_context(&cc, target->fwdev->csrrom);
 432         /* XXX shoud parse appropriate unit directories only */
 433         maxlun = -1;
 434         while (cc.depth >= 0) {
 435                 reg = crom_search_key(&cc, CROM_LUN);
 436                 if (reg == NULL)
 437                         break;
 438                 lun = reg->val & 0xffff;
 439 SBP_DEBUG(0)
 440                 printf("target %d lun %d found\n", target->target_id, lun);
 441 END_DEBUG
 442                 if (maxlun < lun)
 443                         maxlun = lun;
 444                 crom_next(&cc);
 445         }
 446         if (maxlun < 0)
 447                 printf("%s:%d no LUN found\n",
 448                     device_get_nameunit(target->sbp->fd.dev),
 449                     target->target_id);
 450
 451         maxlun ++;
 452         if (maxlun >= SBP_NUM_LUNS)
 453                 maxlun = SBP_NUM_LUNS;
 454
 455         /* Invalidiate stale devices */
 456         for (lun = 0; lun < target->num_lun; lun ++) {
 457                 sdev = target->luns[lun];
 458                 if (sdev == NULL)
 459                         continue;
 460                 sdev->flags &= ~VALID_LUN;
 461                 if (lun >= maxlun) {
 462                         /* lost device */
 463                         sbp_cam_detach_sdev(sdev);
 464                         sbp_free_sdev(sdev);
 465                 }
 466         }
 467
 468         /* Reallocate */
 469         if (maxlun != target->num_lun) {
 470                 /*
 471                  * note: realloc() does not support M_ZERO.  We must zero
 472                  * the extended region manually.
 473                  */
 474                 newluns = realloc(target->luns,
 475                                 sizeof(struct sbp_dev *) * maxlun,
 476                                 M_SBP, M_WAITOK);
 477
 478                 if (maxlun > target->num_lun) {
 479                         bzero(&newluns[target->num_lun],
 480                             sizeof(struct sbp_dev *) *
 481                              (maxlun - target->num_lun));
 482                 }
 483                 target->luns = newluns;
 484                 target->num_lun = maxlun;
 485         }
 486
 487         crom_init_context(&cc, target->fwdev->csrrom);
 488         while (cc.depth >= 0) {
 489                 int new = 0;
 490
 491                 reg = crom_search_key(&cc, CROM_LUN);
 492                 if (reg == NULL)
 493                         break;
 494                 lun = reg->val & 0xffff;
 495                 if (lun >= SBP_NUM_LUNS) {
 496                         printf("too large lun %d\n", lun);
 497                         goto next;
 498                 }
 499
 500                 sdev = target->luns[lun];
 501                 if (sdev == NULL) {
 502                         sdev = malloc(sizeof(struct sbp_dev),
 503                             M_SBP, M_WAITOK | M_ZERO);
 504                         target->luns[lun] = sdev;
 505                         sdev->lun_id = lun;
 506                         sdev->target = target;
 507                         STAILQ_INIT(&sdev->ocbs);
 508                         CALLOUT_INIT(&sdev->login_callout);
 509                         sdev->status = SBP_DEV_RESET;
 510                         new = 1;
 511                 }
 512                 sdev->flags |= VALID_LUN;
 513                 sdev->type = (reg->val & 0xff0000) >> 16;
 514
 515                 if (new == 0)
 516                         goto next;
 517
 518                 fwdma_malloc(sbp->fd.fc,
 519                         /* alignment */ sizeof(u_int32_t),
 520                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 521                 if (sdev->dma.v_addr == NULL) {
 522                         printf("%s: dma space allocation failed\n",
 523                                                         __func__);
 524                         free(sdev, M_SBP);
 525                         target->luns[lun] = NULL;
 526                         goto next;
 527                 }
 528                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 529                 sdev->ocb = (struct sbp_ocb *)
 530                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 531                 bzero((char *)sdev->ocb,
 532                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 533
 534                 STAILQ_INIT(&sdev->free_ocbs);
 535                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 536                         struct sbp_ocb *ocb;
 537                         ocb = &sdev->ocb[i];
 538                         ocb->bus_addr = sdev->dma.bus_addr
 539                                 + SBP_LOGIN_SIZE
 540                                 + sizeof(struct sbp_ocb) * i
 541                                 + offsetof(struct sbp_ocb, orb[0]);
 542                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 543                                 printf("sbp_attach: cannot create dmamap\n");
 544                                 /* XXX */
 545                                 goto next;
 546                         }
 547                         sbp_free_ocb(sdev, ocb);
 548                 }
 549 next:
 550                 crom_next(&cc);
 551         }
 552
 553         for (lun = 0; lun < target->num_lun; lun ++) {
 554                 sdev = target->luns[lun];
 555                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 556                         sbp_cam_detach_sdev(sdev);
 557                         sbp_free_sdev(sdev);
 558                         target->luns[lun] = NULL;
 559                 }
 560         }
 561 }
 562
 563 static struct sbp_target *
 564 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 565 {
 566         int i;
 567         struct sbp_target *target;
 568         struct crom_context cc;
 569         struct csrreg *reg;
 570
 571 SBP_DEBUG(1)
 572         printf("sbp_alloc_target\n");
 573 END_DEBUG
 574         i = sbp_new_target(sbp, fwdev);
 575         if (i < 0) {
 576                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 577                 return NULL;
 578         }
 579         /* new target */
 580         target = &sbp->targets[i];
 581         target->sbp = sbp;
 582         target->fwdev = fwdev;
 583         target->target_id = i;
 584         /* XXX we may want to reload mgm port after each bus reset */
 585         /* XXX there might be multiple management agents */
 586         crom_init_context(&cc, target->fwdev->csrrom);
 587         reg = crom_search_key(&cc, CROM_MGM);
 588         if (reg == NULL || reg->val == 0) {
 589                 printf("NULL management address\n");
 590                 target->fwdev = NULL;
 591                 return NULL;
 592         }
 593         target->mgm_hi = 0xffff;
 594         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 595         target->mgm_ocb_cur = NULL;
 596 SBP_DEBUG(1)
 597         printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 598 END_DEBUG
 599         STAILQ_INIT(&target->xferlist);
 600         target->n_xfer = 0;
 601         STAILQ_INIT(&target->mgm_ocb_queue);
 602         CALLOUT_INIT(&target->mgm_ocb_timeout);
 603         CALLOUT_INIT(&target->scan_callout);
 604
 605         target->luns = NULL;
 606         target->num_lun = 0;
 607         return target;
 608 }
 609
 610 static void
 611 sbp_probe_lun(struct sbp_dev *sdev)
 612 {
 613         struct fw_device *fwdev;
 614         struct crom_context c, *cc = &c;
 615         struct csrreg *reg;
 616
 617         bzero(sdev->vendor, sizeof(sdev->vendor));
 618         bzero(sdev->product, sizeof(sdev->product));
 619
 620         fwdev = sdev->target->fwdev;
 621         crom_init_context(cc, fwdev->csrrom);
 622         /* get vendor string */
 623         crom_search_key(cc, CSRKEY_VENDOR);
 624         crom_next(cc);
 625         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 626         /* skip to the unit directory for SBP-2 */
 627         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 628                 if (reg->val == CSRVAL_T10SBP2)
 629                         break;
 630                 crom_next(cc);
 631         }
 632         /* get firmware revision */
 633         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 634         if (reg != NULL)
 635                 snprintf(sdev->revision, sizeof(sdev->revision),
 636                                                 "%06x", reg->val);
 637         /* get product string */
 638         crom_search_key(cc, CSRKEY_MODEL);
 639         crom_next(cc);
 640         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 641 }
 642
 643 static void
 644 sbp_login_callout(void *arg)
 645 {
 646         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 647         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 648 }
 649
 650 static void
 651 sbp_login(struct sbp_dev *sdev)
 652 {
 653         struct timeval delta;
 654         struct timeval t;
 655         int ticks = 0;
 656
 657         microtime(&delta);
 658         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 659         t.tv_sec = login_delay / 1000;
 660         t.tv_usec = (login_delay % 1000) * 1000;
 661         timevalsub(&t, &delta);
 662         if (t.tv_sec >= 0 && t.tv_usec > 0)
 663                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 664 SBP_DEBUG(0)
 665         printf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
 666             t.tv_sec, t.tv_usec, ticks);
 667 END_DEBUG
 668         callout_reset(&sdev->login_callout, ticks,
 669                         sbp_login_callout, (void *)(sdev));
 670 }
 671
 672 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 673         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 674
 675 static void
 676 sbp_probe_target(void *arg)
 677 {
 678         struct sbp_target *target = (struct sbp_target *)arg;
 679         struct sbp_softc *sbp;
 680         struct sbp_dev *sdev;
 681         struct firewire_comm *fc;
 682         int i, alive;
 683
 684         alive = SBP_FWDEV_ALIVE(target->fwdev);
 685 SBP_DEBUG(1)
 686         printf("sbp_probe_target %d\n", target->target_id);
 687         if (!alive)
 688                 printf("not alive\n");
 689 END_DEBUG
 690
 691         sbp = target->sbp;
 692         fc = target->sbp->fd.fc;
 693         sbp_alloc_lun(target);
 694
 695         /* XXX untimeout mgm_ocb and dequeue */
 696         for (i=0; i < target->num_lun; i++) {
 697                 sdev = target->luns[i];
 698                 if (sdev == NULL)
 699                         continue;
 700                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 701                         if (sdev->path != NULL) {
 702                                 xpt_freeze_devq(sdev->path, 1);
 703                                 sdev->freeze ++;
 704                         }
 705                         sbp_probe_lun(sdev);
 706 SBP_DEBUG(0)
 707                         sbp_show_sdev_info(sdev,
 708                                         (sdev->status == SBP_DEV_RESET));
 709 END_DEBUG
 710
 711                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 712                         switch (sdev->status) {
 713                         case SBP_DEV_RESET:
 714                                 /* new or revived target */
 715                                 if (auto_login)
 716                                         sbp_login(sdev);
 717                                 break;
 718                         case SBP_DEV_TOATTACH:
 719                         case SBP_DEV_PROBE:
 720                         case SBP_DEV_ATTACHED:
 721                         case SBP_DEV_RETRY:
 722                         default:
 723                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 724                                 break;
 725                         }
 726                 } else {
 727                         switch (sdev->status) {
 728                         case SBP_DEV_ATTACHED:
 729 SBP_DEBUG(0)
 730                                 /* the device has gone */
 731                                 sbp_show_sdev_info(sdev, 2);
 732                                 printf("lost target\n");
 733 END_DEBUG
 734                                 if (sdev->path) {
 735                                         xpt_freeze_devq(sdev->path, 1);
 736                                         sdev->freeze ++;
 737                                 }
 738                                 sdev->status = SBP_DEV_RETRY;
 739                                 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 740                                 break;
 741                         case SBP_DEV_PROBE:
 742                         case SBP_DEV_TOATTACH:
 743                                 sdev->status = SBP_DEV_RESET;
 744                                 break;
 745                         case SBP_DEV_RETRY:
 746                         case SBP_DEV_RESET:
 747                         case SBP_DEV_DEAD:
 748                                 break;
 749                         }
 750                 }
 751         }
 752 }
 753
 754 static void
 755 sbp_post_busreset(void *arg)
 756 {
 757         struct sbp_softc *sbp;
 758
 759         sbp = (struct sbp_softc *)arg;
 760 SBP_DEBUG(0)
 761         printf("sbp_post_busreset\n");
 762 END_DEBUG
 763         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 764                 xpt_freeze_simq(sbp->sim, /*count*/1);
 765                 sbp->sim->flags |= SIMQ_FREEZED;
 766         }
 767         microtime(&sbp->last_busreset);
 768 }
 769
 770 static void
 771 sbp_post_explore(void *arg)
 772 {
 773         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 774         struct sbp_target *target;
 775         struct fw_device *fwdev;
 776         int i, alive;
 777
 778 SBP_DEBUG(0)
 779         printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
 780 END_DEBUG
 781         if (sbp_cold > 0)
 782                 sbp_cold --;
 783
 784 #if 0
 785         /*
 786          * XXX don't let CAM the bus rest.
 787          * CAM tries to do something with freezed (DEV_RETRY) devices.
 788          */
 789         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 790 #endif
 791
 792         /* Gabage Collection */
 793         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 794                 target = &sbp->targets[i];
 795                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 796                         if (target->fwdev == NULL || target->fwdev == fwdev)
 797                                 break;
 798                 if (fwdev == NULL) {
 799                         /* device has removed in lower driver */
 800                         sbp_cam_detach_target(target);
 801                         sbp_free_target(target);
 802                 }
 803         }
 804         /* traverse device list */
 805         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 806 SBP_DEBUG(0)
 807                 printf("sbp_post_explore: EUI:%08x%08x ",
 808                                 fwdev->eui.hi, fwdev->eui.lo);
 809                 if (fwdev->status != FWDEVATTACHED)
 810                         printf("not attached, state=%d.\n", fwdev->status);
 811                 else
 812                         printf("attached\n");
 813 END_DEBUG
 814                 alive = SBP_FWDEV_ALIVE(fwdev);
 815                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 816                         target = &sbp->targets[i];
 817                         if(target->fwdev == fwdev ) {
 818                                 /* known target */
 819                                 break;
 820                         }
 821                 }
 822                 if(i == SBP_NUM_TARGETS){
 823                         if (alive) {
 824                                 /* new target */
 825                                 target = sbp_alloc_target(sbp, fwdev);
 826                                 if (target == NULL)
 827                                         continue;
 828                         } else {
 829                                 continue;
 830                         }
 831                 }
 832                 sbp_probe_target((void *)target);
 833                 if (target->num_lun == 0)
 834                         sbp_free_target(target);
 835         }
 836         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 837         sbp->sim->flags &= ~SIMQ_FREEZED;
 838 }
 839
 840 #if NEED_RESPONSE
 841 static void
 842 sbp_loginres_callback(struct fw_xfer *xfer){
 843         struct sbp_dev *sdev;
 844         sdev = (struct sbp_dev *)xfer->sc;
 845 SBP_DEBUG(1)
 846         sbp_show_sdev_info(sdev, 2);
 847         printf("sbp_loginres_callback\n");
 848 END_DEBUG
 849         /* recycle */
 850         crit_enter();
 851         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 852         crit_exit();
 853         return;
 854 }
 855 #endif
 856
 857 static __inline void
 858 sbp_xfer_free(struct fw_xfer *xfer)
 859 {
 860         struct sbp_dev *sdev;
 861
 862         sdev = (struct sbp_dev *)xfer->sc;
 863         fw_xfer_unload(xfer);
 864         crit_enter();
 865         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 866         crit_exit();
 867 }
 868
 869 static void
 870 sbp_reset_start_callback(struct fw_xfer *xfer)
 871 {
 872         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 873         struct sbp_target *target = sdev->target;
 874         int i;
 875
 876         if (xfer->resp != 0) {
 877                 sbp_show_sdev_info(sdev, 2);
 878                 printf("sbp_reset_start failed: resp=%d\n", xfer->resp);
 879         }
 880
 881         for (i = 0; i < target->num_lun; i++) {
 882                 tsdev = target->luns[i];
 883                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 884                         sbp_login(tsdev);
 885         }
 886 }
 887
 888 static void
 889 sbp_reset_start(struct sbp_dev *sdev)
 890 {
 891         struct fw_xfer *xfer;
 892         struct fw_pkt *fp;
 893
 894 SBP_DEBUG(0)
 895         sbp_show_sdev_info(sdev, 2);
 896         printf("sbp_reset_start\n");
 897 END_DEBUG
 898
 899         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 900         xfer->act.hand = sbp_reset_start_callback;
 901         fp = &xfer->send.hdr;
 902         fp->mode.wreqq.dest_hi = 0xffff;
 903         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 904         fp->mode.wreqq.data = htonl(0xf);
 905         fw_asyreq(xfer->fc, -1, xfer);
 906 }
 907
 908 static void
 909 sbp_mgm_callback(struct fw_xfer *xfer)
 910 {
 911         struct sbp_dev *sdev;
 912         int resp;
 913
 914         sdev = (struct sbp_dev *)xfer->sc;
 915
 916 SBP_DEBUG(1)
 917         sbp_show_sdev_info(sdev, 2);
 918         printf("sbp_mgm_callback\n");
 919 END_DEBUG
 920         resp = xfer->resp;
 921         sbp_xfer_free(xfer);
 922 #if 0
 923         if (resp != 0) {
 924                 sbp_show_sdev_info(sdev, 2);
 925                 printf("management ORB failed(%d) ... RESET_START\n", resp);
 926                 sbp_reset_start(sdev);
 927         }
 928 #endif
 929         return;
 930 }
 931
 932 static struct sbp_dev *
 933 sbp_next_dev(struct sbp_target *target, int lun)
 934 {
 935         struct sbp_dev **sdevp;
 936         int i;
 937
 938         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 939             i++, sdevp++)
 940                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 941                         return(*sdevp);
 942         return(NULL);
 943 }
 944
 945 #define SCAN_PRI 1
 946 static void
 947 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 948 {
 949         struct sbp_target *target;
 950         struct sbp_dev *sdev;
 951
 952         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
 953         target = sdev->target;
 954 SBP_DEBUG(0)
 955         sbp_show_sdev_info(sdev, 2);
 956         printf("sbp_cam_scan_lun\n");
 957 END_DEBUG
 958         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 959                 sdev->status = SBP_DEV_ATTACHED;
 960         } else {
 961                 sbp_show_sdev_info(sdev, 2);
 962                 printf("scan failed\n");
 963         }
 964         sdev = sbp_next_dev(target, sdev->lun_id + 1);
 965         if (sdev == NULL) {
 966                 free(ccb, M_SBP);
 967                 return;
 968         }
 969         /* reuse ccb */
 970         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 971         ccb->ccb_h.ccb_sdev_ptr = sdev;
 972         xpt_action(ccb);
 973         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 974         sdev->freeze = 1;
 975 }
 976
 977 static void
 978 sbp_cam_scan_target(void *arg)
 979 {
 980         struct sbp_target *target = (struct sbp_target *)arg;
 981         struct sbp_dev *sdev;
 982         union ccb *ccb;
 983
 984         sdev = sbp_next_dev(target, 0);
 985         if (sdev == NULL) {
 986                 printf("sbp_cam_scan_target: nothing to do for target%d\n",
 987                                                         target->target_id);
 988                 return;
 989         }
 990 SBP_DEBUG(0)
 991         sbp_show_sdev_info(sdev, 2);
 992         printf("sbp_cam_scan_target\n");
 993 END_DEBUG
 994         ccb = malloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
 995         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 996         ccb->ccb_h.func_code = XPT_SCAN_LUN;
 997         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
 998         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 999         ccb->crcn.flags = CAM_FLAG_NONE;
1000         ccb->ccb_h.ccb_sdev_ptr = sdev;
1001
1002         /* The scan is in progress now. */
1003         xpt_action(ccb);
1004         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1005         sdev->freeze = 1;
1006 }
1007
1008 static __inline void
1009 sbp_scan_dev(struct sbp_dev *sdev)
1010 {
1011         sdev->status = SBP_DEV_PROBE;
1012         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1013                         sbp_cam_scan_target, (void *)sdev->target);
1014 }
1015
1016 static void
1017 sbp_do_attach(struct fw_xfer *xfer)
1018 {
1019         struct sbp_dev *sdev;
1020         struct sbp_target *target;
1021         struct sbp_softc *sbp;
1022
1023         sdev = (struct sbp_dev *)xfer->sc;
1024         target = sdev->target;
1025         sbp = target->sbp;
1026 SBP_DEBUG(0)
1027         sbp_show_sdev_info(sdev, 2);
1028         printf("sbp_do_attach\n");
1029 END_DEBUG
1030         sbp_xfer_free(xfer);
1031
1032         if (sdev->path == NULL)
1033                 xpt_create_path(&sdev->path, xpt_periph,
1034                         cam_sim_path(target->sbp->sim),
1035                         target->target_id, sdev->lun_id);
1036
1037         /*
1038          * Let CAM scan the bus if we are in the boot process.
1039          * XXX xpt_scan_bus cannot detect LUN larger than 0
1040          * if LUN 0 doesn't exists.
1041          */
1042         if (sbp_cold > 0) {
1043                 sdev->status = SBP_DEV_ATTACHED;
1044                 return;
1045         }
1046
1047         sbp_scan_dev(sdev);
1048         return;
1049 }
1050
1051 static void
1052 sbp_agent_reset_callback(struct fw_xfer *xfer)
1053 {
1054         struct sbp_dev *sdev;
1055
1056         sdev = (struct sbp_dev *)xfer->sc;
1057 SBP_DEBUG(1)
1058         sbp_show_sdev_info(sdev, 2);
1059         printf("%s\n", __func__);
1060 END_DEBUG
1061         if (xfer->resp != 0) {
1062                 sbp_show_sdev_info(sdev, 2);
1063                 printf("%s: resp=%d\n", __func__, xfer->resp);
1064         }
1065
1066         sbp_xfer_free(xfer);
1067         if (sdev->path) {
1068                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1069                 sdev->freeze = 0;
1070         }
1071 }
1072
1073 static void
1074 sbp_agent_reset(struct sbp_dev *sdev)
1075 {
1076         struct fw_xfer *xfer;
1077         struct fw_pkt *fp;
1078
1079 SBP_DEBUG(0)
1080         sbp_show_sdev_info(sdev, 2);
1081         printf("sbp_agent_reset\n");
1082 END_DEBUG
1083         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1084         if (xfer == NULL)
1085                 return;
1086         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1087                 xfer->act.hand = sbp_agent_reset_callback;
1088         else
1089                 xfer->act.hand = sbp_do_attach;
1090         fp = &xfer->send.hdr;
1091         fp->mode.wreqq.data = htonl(0xf);
1092         fw_asyreq(xfer->fc, -1, xfer);
1093         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1094 }
1095
1096 static void
1097 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1098 {
1099         struct sbp_dev *sdev;
1100
1101         sdev = (struct sbp_dev *)xfer->sc;
1102 SBP_DEBUG(1)
1103         sbp_show_sdev_info(sdev, 2);
1104         printf("sbp_busy_timeout_callback\n");
1105 END_DEBUG
1106         sbp_xfer_free(xfer);
1107         sbp_agent_reset(sdev);
1108 }
1109
1110 static void
1111 sbp_busy_timeout(struct sbp_dev *sdev)
1112 {
1113         struct fw_pkt *fp;
1114         struct fw_xfer *xfer;
1115 SBP_DEBUG(0)
1116         sbp_show_sdev_info(sdev, 2);
1117         printf("sbp_busy_timeout\n");
1118 END_DEBUG
1119         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1120
1121         xfer->act.hand = sbp_busy_timeout_callback;
1122         fp = &xfer->send.hdr;
1123         fp->mode.wreqq.dest_hi = 0xffff;
1124         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1125         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1126         fw_asyreq(xfer->fc, -1, xfer);
1127 }
1128
1129 static void
1130 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1131 {
1132         struct sbp_dev *sdev;
1133         sdev = (struct sbp_dev *)xfer->sc;
1134
1135 SBP_DEBUG(1)
1136         sbp_show_sdev_info(sdev, 2);
1137         printf("%s\n", __func__);
1138 END_DEBUG
1139         if (xfer->resp != 0) {
1140                 /* XXX */
1141                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1142         }
1143         sbp_xfer_free(xfer);
1144         sdev->flags &= ~ORB_POINTER_ACTIVE;
1145
1146         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1147                 struct sbp_ocb *ocb;
1148
1149                 sdev->flags &= ~ORB_POINTER_NEED;
1150                 ocb = STAILQ_FIRST(&sdev->ocbs);
1151                 if (ocb != NULL)
1152                         sbp_orb_pointer(sdev, ocb);
1153         }
1154         return;
1155 }
1156
1157 static void
1158 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1159 {
1160         struct fw_xfer *xfer;
1161         struct fw_pkt *fp;
1162 SBP_DEBUG(1)
1163         sbp_show_sdev_info(sdev, 2);
1164         printf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1165 END_DEBUG
1166
1167         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1168 SBP_DEBUG(0)
1169                 printf("%s: orb pointer active\n", __func__);
1170 END_DEBUG
1171                 sdev->flags |= ORB_POINTER_NEED;
1172                 return;
1173         }
1174
1175         sdev->flags |= ORB_POINTER_ACTIVE;
1176         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1177         if (xfer == NULL)
1178                 return;
1179         xfer->act.hand = sbp_orb_pointer_callback;
1180
1181         fp = &xfer->send.hdr;
1182         fp->mode.wreqb.len = 8;
1183         fp->mode.wreqb.extcode = 0;
1184         xfer->send.payload[0] =
1185                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1186         xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1187
1188         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1189                         sbp_xfer_free(xfer);
1190                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1191                         xpt_done(ocb->ccb);
1192         }
1193 }
1194
1195 #if 0
1196 static void
1197 sbp_cmd_callback(struct fw_xfer *xfer)
1198 {
1199 SBP_DEBUG(1)
1200         struct sbp_dev *sdev;
1201         sdev = (struct sbp_dev *)xfer->sc;
1202         sbp_show_sdev_info(sdev, 2);
1203         printf("sbp_cmd_callback\n");
1204 END_DEBUG
1205         if (xfer->resp != 0) {
1206                 /* XXX */
1207                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1208         }
1209         sbp_xfer_free(xfer);
1210         return;
1211 }
1212
1213 static void
1214 sbp_doorbell(struct sbp_dev *sdev)
1215 {
1216         struct fw_xfer *xfer;
1217         struct fw_pkt *fp;
1218 SBP_DEBUG(1)
1219         sbp_show_sdev_info(sdev, 2);
1220         printf("sbp_doorbell\n");
1221 END_DEBUG
1222
1223         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1224         if (xfer == NULL)
1225                 return;
1226         xfer->act.hand = sbp_cmd_callback;
1227         fp = (struct fw_pkt *)xfer->send.buf;
1228         fp->mode.wreqq.data = htonl(0xf);
1229         fw_asyreq(xfer->fc, -1, xfer);
1230 }
1231 #endif
1232
1233 static struct fw_xfer *
1234 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1235 {
1236         struct fw_xfer *xfer;
1237         struct fw_pkt *fp;
1238         struct sbp_target *target;
1239         int new = 0;
1240
1241         target = sdev->target;
1242         crit_enter();
1243         xfer = STAILQ_FIRST(&target->xferlist);
1244         if (xfer == NULL) {
1245                 if (target->n_xfer > 5 /* XXX */) {
1246                         printf("sbp: no more xfer for this target\n");
1247                         crit_exit();
1248                         return(NULL);
1249                 }
1250                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1251                 if(xfer == NULL){
1252                         printf("sbp: fw_xfer_alloc_buf failed\n");
1253                         crit_exit();
1254                         return NULL;
1255                 }
1256                 target->n_xfer ++;
1257                 if (debug)
1258                         printf("sbp: alloc %d xfer\n", target->n_xfer);
1259                 new = 1;
1260         } else {
1261                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1262         }
1263         crit_exit();
1264
1265         microtime(&xfer->tv);
1266
1267         if (new) {
1268                 xfer->recv.pay_len = 0;
1269                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1270                 xfer->fc = sdev->target->sbp->fd.fc;
1271                 xfer->retry_req = fw_asybusy;
1272         }
1273
1274         if (tcode == FWTCODE_WREQB)
1275                 xfer->send.pay_len = 8;
1276         else
1277                 xfer->send.pay_len = 0;
1278
1279         xfer->sc = (caddr_t)sdev;
1280         fp = &xfer->send.hdr;
1281         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1282         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1283         fp->mode.wreqq.tlrt = 0;
1284         fp->mode.wreqq.tcode = tcode;
1285         fp->mode.wreqq.pri = 0;
1286         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1287
1288         return xfer;
1289
1290 }
1291
1292 static void
1293 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1294 {
1295         struct fw_xfer *xfer;
1296         struct fw_pkt *fp;
1297         struct sbp_ocb *ocb;
1298         struct sbp_target *target;
1299         int nid;
1300
1301         target = sdev->target;
1302         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1303
1304         crit_enter();
1305         if (func == ORB_FUN_RUNQUEUE) {
1306                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1307                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1308                         crit_exit();
1309                         return;
1310                 }
1311                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1312                 goto start;
1313         }
1314         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1315                 crit_exit();
1316                 /* XXX */
1317                 return;
1318         }
1319         ocb->flags = OCB_ACT_MGM;
1320         ocb->sdev = sdev;
1321
1322         bzero((void *)ocb->orb, sizeof(ocb->orb));
1323         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1324         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1325
1326 SBP_DEBUG(0)
1327         sbp_show_sdev_info(sdev, 2);
1328         printf("%s\n", orb_fun_name[(func>>16)&0xf]);
1329 END_DEBUG
1330         switch (func) {
1331         case ORB_FUN_LGI:
1332                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1333                 ocb->orb[2] = htonl(nid << 16);
1334                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1335                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1336                 if (ex_login)
1337                         ocb->orb[4] |= htonl(ORB_EXV);
1338                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1339                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1340                 break;
1341         case ORB_FUN_ATA:
1342                 ocb->orb[0] = htonl((0 << 16) | 0);
1343                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1344                 /* fall through */
1345         case ORB_FUN_RCN:
1346         case ORB_FUN_LGO:
1347         case ORB_FUN_LUR:
1348         case ORB_FUN_RST:
1349         case ORB_FUN_ATS:
1350                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1351                 break;
1352         }
1353
1354         if (target->mgm_ocb_cur != NULL) {
1355                 /* there is a standing ORB */
1356                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1357                 crit_exit();
1358                 return;
1359         }
1360 start:
1361         target->mgm_ocb_cur = ocb;
1362         crit_exit();
1363
1364         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1365                                 sbp_mgm_timeout, (caddr_t)ocb);
1366         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1367         if(xfer == NULL){
1368                 return;
1369         }
1370         xfer->act.hand = sbp_mgm_callback;
1371
1372         fp = &xfer->send.hdr;
1373         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1374         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1375         fp->mode.wreqb.len = 8;
1376         fp->mode.wreqb.extcode = 0;
1377         xfer->send.payload[0] = htonl(nid << 16);
1378         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1379 SBP_DEBUG(0)
1380         sbp_show_sdev_info(sdev, 2);
1381         printf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1382 END_DEBUG
1383
1384         fw_asyreq(xfer->fc, -1, xfer);
1385 }
1386
1387 static void
1388 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1389 {
1390         struct ccb_scsiio *csio;
1391
1392         csio = &ocb->ccb->csio;
1393         printf("%s:%d:%d XPT_SCSI_IO: "
1394                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1395                 ", flags: 0x%02x, "
1396                 "%db cmd/%db data/%db sense\n",
1397                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1398                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1399                 csio->cdb_io.cdb_bytes[0],
1400                 csio->cdb_io.cdb_bytes[1],
1401                 csio->cdb_io.cdb_bytes[2],
1402                 csio->cdb_io.cdb_bytes[3],
1403                 csio->cdb_io.cdb_bytes[4],
1404                 csio->cdb_io.cdb_bytes[5],
1405                 csio->cdb_io.cdb_bytes[6],
1406                 csio->cdb_io.cdb_bytes[7],
1407                 csio->cdb_io.cdb_bytes[8],
1408                 csio->cdb_io.cdb_bytes[9],
1409                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1410                 csio->cdb_len, csio->dxfer_len,
1411                 csio->sense_len);
1412 }
1413
1414 static void
1415 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1416 {
1417         struct sbp_cmd_status *sbp_cmd_status;
1418         struct scsi_sense_data *sense;
1419
1420         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1421         sense = &ocb->ccb->csio.sense_data;
1422
1423 SBP_DEBUG(0)
1424         sbp_print_scsi_cmd(ocb);
1425         /* XXX need decode status */
1426         sbp_show_sdev_info(ocb->sdev, 2);
1427         printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1428                 sbp_cmd_status->status,
1429                 sbp_cmd_status->sfmt,
1430                 sbp_cmd_status->valid,
1431                 sbp_cmd_status->s_key,
1432                 sbp_cmd_status->s_code,
1433                 sbp_cmd_status->s_qlfr,
1434                 sbp_status->len
1435         );
1436 END_DEBUG
1437
1438         switch (sbp_cmd_status->status) {
1439         case SCSI_STATUS_CHECK_COND:
1440         case SCSI_STATUS_BUSY:
1441         case SCSI_STATUS_CMD_TERMINATED:
1442                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1443                         sense->error_code = SSD_CURRENT_ERROR;
1444                 }else{
1445                         sense->error_code = SSD_DEFERRED_ERROR;
1446                 }
1447                 if(sbp_cmd_status->valid)
1448                         sense->error_code |= SSD_ERRCODE_VALID;
1449                 sense->flags = sbp_cmd_status->s_key;
1450                 if(sbp_cmd_status->mark)
1451                         sense->flags |= SSD_FILEMARK;
1452                 if(sbp_cmd_status->eom)
1453                         sense->flags |= SSD_EOM;
1454                 if(sbp_cmd_status->ill_len)
1455                         sense->flags |= SSD_ILI;
1456
1457                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1458
1459                 if (sbp_status->len <= 1)
1460                         /* XXX not scsi status. shouldn't be happened */
1461                         sense->extra_len = 0;
1462                 else if (sbp_status->len <= 4)
1463                         /* add_sense_code(_qual), info, cmd_spec_info */
1464                         sense->extra_len = 6;
1465                 else
1466                         /* fru, sense_key_spec */
1467                         sense->extra_len = 10;
1468
1469                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1470
1471                 sense->add_sense_code = sbp_cmd_status->s_code;
1472                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1473                 sense->fru = sbp_cmd_status->fru;
1474
1475                 bcopy(&sbp_cmd_status->s_keydep[0],
1476                     &sense->sense_key_spec[0], 3);
1477
1478                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;;
1479                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1480                                                         | CAM_AUTOSNS_VALID;
1481 /*
1482 {
1483                 u_int8_t j, *tmp;
1484                 tmp = sense;
1485                 for( j = 0 ; j < 32 ; j+=8){
1486                         printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1487                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1488                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1489                 }
1490
1491 }
1492 */
1493                 break;
1494         default:
1495                 sbp_show_sdev_info(ocb->sdev, 2);
1496                 printf("sbp_scsi_status: unknown scsi status 0x%x\n",
1497                                                 sbp_cmd_status->status);
1498         }
1499 }
1500
1501 static void
1502 sbp_fix_inq_data(struct sbp_ocb *ocb)
1503 {
1504         union ccb *ccb;
1505         struct sbp_dev *sdev;
1506         struct scsi_inquiry_data *inq;
1507
1508         ccb = ocb->ccb;
1509         sdev = ocb->sdev;
1510
1511         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1512                 return;
1513 SBP_DEBUG(1)
1514         sbp_show_sdev_info(sdev, 2);
1515         printf("sbp_fix_inq_data\n");
1516 END_DEBUG
1517         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1518         switch (SID_TYPE(inq)) {
1519         case T_DIRECT:
1520 #if 0
1521                 /*
1522                  * XXX Convert Direct Access device to RBC.
1523                  * I've never seen FireWire DA devices which support READ_6.
1524                  */
1525                 if (SID_TYPE(inq) == T_DIRECT)
1526                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1527 #endif
1528                 /* fall through */
1529         case T_RBC:
1530                 /* enable tagged queuing */
1531                 if (sbp_tags)
1532                         inq->flags |= SID_CmdQue;
1533                 else
1534                         inq->flags &= ~SID_CmdQue;
1535                 /*
1536                  * Override vendor/product/revision information.
1537                  * Some devices sometimes return strange strings.
1538                  */
1539 #if 1
1540                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1541                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1542                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1543 #endif
1544                 break;
1545         }
1546 }
1547
1548 static void
1549 sbp_recv1(struct fw_xfer *xfer)
1550 {
1551         struct fw_pkt *rfp;
1552 #if NEED_RESPONSE
1553         struct fw_pkt *sfp;
1554 #endif
1555         struct sbp_softc *sbp;
1556         struct sbp_dev *sdev;
1557         struct sbp_ocb *ocb;
1558         struct sbp_login_res *login_res = NULL;
1559         struct sbp_status *sbp_status;
1560         struct sbp_target *target;
1561         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1562         u_int32_t addr;
1563 /*
1564         u_int32_t *ld;
1565         ld = xfer->recv.buf;
1566 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1567                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1568 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1569 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1570 */
1571         sbp = (struct sbp_softc *)xfer->sc;
1572         if (xfer->resp != 0){
1573                 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1574                 goto done0;
1575         }
1576         if (xfer->recv.payload == NULL){
1577                 printf("sbp_recv: xfer->recv.payload == NULL\n");
1578                 goto done0;
1579         }
1580         rfp = &xfer->recv.hdr;
1581         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1582                 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1583                 goto done0;
1584         }
1585         sbp_status = (struct sbp_status *)xfer->recv.payload;
1586         addr = rfp->mode.wreqb.dest_lo;
1587 SBP_DEBUG(2)
1588         printf("received address 0x%x\n", addr);
1589 END_DEBUG
1590         t = SBP_ADDR2TRG(addr);
1591         if (t >= SBP_NUM_TARGETS) {
1592                 device_printf(sbp->fd.dev,
1593                         "sbp_recv1: invalid target %d\n", t);
1594                 goto done0;
1595         }
1596         target = &sbp->targets[t];
1597         l = SBP_ADDR2LUN(addr);
1598         if (l >= target->num_lun || target->luns[l] == NULL) {
1599                 device_printf(sbp->fd.dev,
1600                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1601                 goto done0;
1602         }
1603         sdev = target->luns[l];
1604
1605         ocb = NULL;
1606         switch (sbp_status->src) {
1607         case 0:
1608         case 1:
1609                 /* check mgm_ocb_cur first */
1610                 ocb  = target->mgm_ocb_cur;
1611                 if (ocb != NULL) {
1612                         if (OCB_MATCH(ocb, sbp_status)) {
1613                                 callout_stop(&target->mgm_ocb_timeout);
1614                                 target->mgm_ocb_cur = NULL;
1615                                 break;
1616                         }
1617                 }
1618                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1619                 if (ocb == NULL) {
1620                         sbp_show_sdev_info(sdev, 2);
1621                         printf("No ocb(%x) on the queue\n",
1622                                         ntohl(sbp_status->orb_lo));
1623                 }
1624                 break;
1625         case 2:
1626                 /* unsolicit */
1627                 sbp_show_sdev_info(sdev, 2);
1628                 printf("unsolicit status received\n");
1629                 break;
1630         default:
1631                 sbp_show_sdev_info(sdev, 2);
1632                 printf("unknown sbp_status->src\n");
1633         }
1634
1635         status_valid0 = (sbp_status->src < 2
1636                         && sbp_status->resp == ORB_RES_CMPL
1637                         && sbp_status->dead == 0);
1638         status_valid = (status_valid0 && sbp_status->status == 0);
1639
1640         if (!status_valid0 || debug > 2){
1641                 int status;
1642 SBP_DEBUG(0)
1643                 sbp_show_sdev_info(sdev, 2);
1644                 printf("ORB status src:%x resp:%x dead:%x"
1645                                 " len:%x stat:%x orb:%x%08x\n",
1646                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1647                         sbp_status->len, sbp_status->status,
1648                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1649 END_DEBUG
1650                 sbp_show_sdev_info(sdev, 2);
1651                 status = sbp_status->status;
1652                 switch(sbp_status->resp) {
1653                 case 0:
1654                         if (status > MAX_ORB_STATUS0)
1655                                 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1656                         else
1657                                 printf("%s\n", orb_status0[status]);
1658                         break;
1659                 case 1:
1660                         printf("Obj: %s, Error: %s\n",
1661                                 orb_status1_object[(status>>6) & 3],
1662                                 orb_status1_serial_bus_error[status & 0xf]);
1663                         break;
1664                 case 2:
1665                         printf("Illegal request\n");
1666                         break;
1667                 case 3:
1668                         printf("Vendor dependent\n");
1669                         break;
1670                 default:
1671                         printf("unknown respose code %d\n", sbp_status->resp);
1672                 }
1673         }
1674
1675         /* we have to reset the fetch agent if it's dead */
1676         if (sbp_status->dead) {
1677                 if (sdev->path) {
1678                         xpt_freeze_devq(sdev->path, 1);
1679                         sdev->freeze ++;
1680                 }
1681                 reset_agent = 1;
1682         }
1683
1684         if (ocb == NULL)
1685                 goto done;
1686
1687         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1688         case ORB_FMT_NOP:
1689                 break;
1690         case ORB_FMT_VED:
1691                 break;
1692         case ORB_FMT_STD:
1693                 switch(ocb->flags) {
1694                 case OCB_ACT_MGM:
1695                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1696                         reset_agent = 0;
1697                         switch(orb_fun) {
1698                         case ORB_FUN_LGI:
1699                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1700                                 login_res = sdev->login;
1701                                 login_res->len = ntohs(login_res->len);
1702                                 login_res->id = ntohs(login_res->id);
1703                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1704                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1705                                 if (status_valid) {
1706 SBP_DEBUG(0)
1707 sbp_show_sdev_info(sdev, 2);
1708 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));
1709 END_DEBUG
1710                                         sbp_busy_timeout(sdev);
1711                                 } else {
1712                                         /* forgot logout? */
1713                                         sbp_show_sdev_info(sdev, 2);
1714                                         printf("login failed\n");
1715                                         sdev->status = SBP_DEV_RESET;
1716                                 }
1717                                 break;
1718                         case ORB_FUN_RCN:
1719                                 login_res = sdev->login;
1720                                 if (status_valid) {
1721 SBP_DEBUG(0)
1722 sbp_show_sdev_info(sdev, 2);
1723 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1724 END_DEBUG
1725 #if 1
1726                                         if (sdev->status == SBP_DEV_ATTACHED)
1727                                                 sbp_scan_dev(sdev);
1728                                         else
1729                                                 sbp_agent_reset(sdev);
1730 #else
1731                                         sdev->status = SBP_DEV_ATTACHED;
1732                                         sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1733 #endif
1734                                 } else {
1735                                         /* reconnection hold time exceed? */
1736 SBP_DEBUG(0)
1737                                         sbp_show_sdev_info(sdev, 2);
1738                                         printf("reconnect failed\n");
1739 END_DEBUG
1740                                         sbp_login(sdev);
1741                                 }
1742                                 break;
1743                         case ORB_FUN_LGO:
1744                                 sdev->status = SBP_DEV_RESET;
1745                                 break;
1746                         case ORB_FUN_RST:
1747                                 sbp_busy_timeout(sdev);
1748                                 break;
1749                         case ORB_FUN_LUR:
1750                         case ORB_FUN_ATA:
1751                         case ORB_FUN_ATS:
1752                                 sbp_agent_reset(sdev);
1753                                 break;
1754                         default:
1755                                 sbp_show_sdev_info(sdev, 2);
1756                                 printf("unknown function %d\n", orb_fun);
1757                                 break;
1758                         }
1759                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1760                         break;
1761                 case OCB_ACT_CMD:
1762                         sdev->timeout = 0;
1763                         if(ocb->ccb != NULL){
1764                                 union ccb *ccb;
1765 /*
1766                                 u_int32_t *ld;
1767                                 ld = ocb->ccb->csio.data_ptr;
1768                                 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1769                                         printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1770                                 else
1771                                         printf("ptr NULL\n");
1772 printf("len %d\n", sbp_status->len);
1773 */
1774                                 ccb = ocb->ccb;
1775                                 if(sbp_status->len > 1){
1776                                         sbp_scsi_status(sbp_status, ocb);
1777                                 }else{
1778                                         if(sbp_status->resp != ORB_RES_CMPL){
1779                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1780                                         }else{
1781                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1782                                         }
1783                                 }
1784                                 /* fix up inq data */
1785                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1786                                         sbp_fix_inq_data(ocb);
1787                                 xpt_done(ccb);
1788                         }
1789                         break;
1790                 default:
1791                         break;
1792                 }
1793         }
1794
1795         sbp_free_ocb(sdev, ocb);
1796 done:
1797         if (reset_agent)
1798                 sbp_agent_reset(sdev);
1799
1800 done0:
1801         xfer->recv.pay_len = SBP_RECV_LEN;
1802 /* The received packet is usually small enough to be stored within
1803  * the buffer. In that case, the controller return ack_complete and
1804  * no respose is necessary.
1805  *
1806  * XXX fwohci.c and firewire.c should inform event_code such as
1807  * ack_complete or ack_pending to upper driver.
1808  */
1809 #if NEED_RESPONSE
1810         xfer->send.off = 0;
1811         sfp = (struct fw_pkt *)xfer->send.buf;
1812         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1813         xfer->dst = sfp->mode.wres.dst;
1814         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1815         xfer->act.hand = sbp_loginres_callback;
1816         xfer->retry_req = fw_asybusy;
1817
1818         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1819         sfp->mode.wres.tcode = FWTCODE_WRES;
1820         sfp->mode.wres.rtcode = 0;
1821         sfp->mode.wres.pri = 0;
1822
1823         fw_asyreq(xfer->fc, -1, xfer);
1824 #else
1825         /* recycle */
1826         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1827 #endif
1828
1829         return;
1830
1831 }
1832
1833 static void
1834 sbp_recv(struct fw_xfer *xfer)
1835 {
1836         crit_enter();
1837         sbp_recv1(xfer);
1838         crit_exit();
1839 }
1840 /*
1841  * sbp_attach()
1842  */
1843 static int
1844 sbp_attach(device_t dev)
1845 {
1846         struct sbp_softc *sbp;
1847         struct cam_devq *devq;
1848         struct fw_xfer *xfer;
1849         int i, error;
1850
1851 SBP_DEBUG(0)
1852         printf("sbp_attach (cold=%d)\n", cold);
1853 END_DEBUG
1854
1855         if (cold)
1856                 sbp_cold ++;
1857         sbp = ((struct sbp_softc *)device_get_softc(dev));
1858         bzero(sbp, sizeof(struct sbp_softc));
1859         sbp->fd.dev = dev;
1860         sbp->fd.fc = device_get_ivars(dev);
1861
1862         if (max_speed < 0)
1863                 max_speed = sbp->fd.fc->speed;
1864
1865         error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1866                                 /* XXX shoud be 4 for sane backend? */
1867                                 /*alignment*/1,
1868                                 /*boundary*/0,
1869                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1870                                 /*highaddr*/BUS_SPACE_MAXADDR,
1871                                 /*filter*/NULL, /*filterarg*/NULL,
1872                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1873                                 /*maxsegsz*/SBP_SEG_MAX,
1874                                 /*flags*/BUS_DMA_ALLOCNOW,
1875 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1876                                 /*lockfunc*/busdma_lock_mutex,
1877                                 /*lockarg*/&Giant,
1878 #endif
1879                                 &sbp->dmat);
1880         if (error != 0) {
1881                 printf("sbp_attach: Could not allocate DMA tag "
1882                         "- error %d\n", error);
1883                         return (ENOMEM);
1884         }
1885
1886         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1887         if (devq == NULL)
1888                 return (ENXIO);
1889
1890         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1891                 sbp->targets[i].fwdev = NULL;
1892                 sbp->targets[i].luns = NULL;
1893         }
1894
1895         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1896                                  device_get_unit(dev),
1897                                  /*untagged*/ 1,
1898                                  /*tagged*/ SBP_QUEUE_LEN - 1,
1899                                  devq);
1900         cam_simq_release(devq);
1901         if (sbp->sim == NULL)
1902                 return (ENXIO);
1903
1904         if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1905                 goto fail;
1906
1907         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1908             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1909                 xpt_bus_deregister(cam_sim_path(sbp->sim));
1910                 goto fail;
1911         }
1912
1913         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1914         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1915         sbp->fwb.end = sbp->fwb.start + 0xffff;
1916         sbp->fwb.act_type = FWACT_XFER;
1917         /* pre-allocate xfer */
1918         STAILQ_INIT(&sbp->fwb.xferlist);
1919         for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1920                 xfer = fw_xfer_alloc_buf(M_SBP,
1921                         /* send */0,
1922                         /* recv */SBP_RECV_LEN);
1923                 xfer->act.hand = sbp_recv;
1924 #if NEED_RESPONSE
1925                 xfer->fc = sbp->fd.fc;
1926 #endif
1927                 xfer->sc = (caddr_t)sbp;
1928                 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1929         }
1930         fw_bindadd(sbp->fd.fc, &sbp->fwb);
1931
1932         sbp->fd.post_busreset = sbp_post_busreset;
1933         sbp->fd.post_explore = sbp_post_explore;
1934
1935         if (sbp->fd.fc->status != -1) {
1936                 crit_enter();
1937                 sbp_post_busreset((void *)sbp);
1938                 sbp_post_explore((void *)sbp);
1939                 crit_exit();
1940         }
1941         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1942
1943         return (0);
1944 fail:
1945         cam_sim_free(sbp->sim);
1946         return (ENXIO);
1947 }
1948
1949 static int
1950 sbp_logout_all(struct sbp_softc *sbp)
1951 {
1952         struct sbp_target *target;
1953         struct sbp_dev *sdev;
1954         int i, j;
1955
1956 SBP_DEBUG(0)
1957         printf("sbp_logout_all\n");
1958 END_DEBUG
1959         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1960                 target = &sbp->targets[i];
1961                 if (target->luns == NULL)
1962                         continue;
1963                 for (j = 0; j < target->num_lun; j++) {
1964                         sdev = target->luns[j];
1965                         if (sdev == NULL)
1966                                 continue;
1967                         callout_stop(&sdev->login_callout);
1968                         if (sdev->status >= SBP_DEV_TOATTACH &&
1969                                         sdev->status <= SBP_DEV_ATTACHED)
1970                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1971                 }
1972         }
1973
1974         return 0;
1975 }
1976
1977 static int
1978 sbp_shutdown(device_t dev)
1979 {
1980         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1981
1982         sbp_logout_all(sbp);
1983         return (0);
1984 }
1985
1986 static void
1987 sbp_free_sdev(struct sbp_dev *sdev)
1988 {
1989         int i;
1990
1991         if (sdev == NULL)
1992                 return;
1993         for (i = 0; i < SBP_QUEUE_LEN; i++)
1994                 bus_dmamap_destroy(sdev->target->sbp->dmat,
1995                     sdev->ocb[i].dmamap);
1996         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
1997         free(sdev, M_SBP);
1998 }
1999
2000 static void
2001 sbp_free_target(struct sbp_target *target)
2002 {
2003         struct sbp_softc *sbp;
2004         struct fw_xfer *xfer, *next;
2005         int i;
2006
2007         if (target->luns == NULL)
2008                 return;
2009         callout_stop(&target->mgm_ocb_timeout);
2010         sbp = target->sbp;
2011         for (i = 0; i < target->num_lun; i++)
2012                 sbp_free_sdev(target->luns[i]);
2013
2014         for (xfer = STAILQ_FIRST(&target->xferlist);
2015                         xfer != NULL; xfer = next) {
2016                 next = STAILQ_NEXT(xfer, link);
2017                 fw_xfer_free_buf(xfer);
2018         }
2019         STAILQ_INIT(&target->xferlist);
2020         free(target->luns, M_SBP);
2021         target->num_lun = 0;;
2022         target->luns = NULL;
2023         target->fwdev = NULL;
2024 }
2025
2026 static int
2027 sbp_detach(device_t dev)
2028 {
2029         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2030         struct firewire_comm *fc = sbp->fd.fc;
2031         struct fw_xfer *xfer, *next;
2032         int i;
2033
2034 SBP_DEBUG(0)
2035         printf("sbp_detach\n");
2036 END_DEBUG
2037
2038         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2039                 sbp_cam_detach_target(&sbp->targets[i]);
2040         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2041         xpt_free_path(sbp->path);
2042         xpt_bus_deregister(cam_sim_path(sbp->sim));
2043         cam_sim_free(sbp->sim);
2044
2045         sbp_logout_all(sbp);
2046
2047         /* XXX wait for logout completion */
2048         tsleep(&i, FWPRI, "sbpdtc", hz/2);
2049
2050         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2051                 sbp_free_target(&sbp->targets[i]);
2052
2053         for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2054                                 xfer != NULL; xfer = next) {
2055                 next = STAILQ_NEXT(xfer, link);
2056                 fw_xfer_free_buf(xfer);
2057         }
2058         STAILQ_INIT(&sbp->fwb.xferlist);
2059         fw_bindremove(fc, &sbp->fwb);
2060
2061         bus_dma_tag_destroy(sbp->dmat);
2062
2063         return (0);
2064 }
2065
2066 static void
2067 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2068 {
2069         if (sdev == NULL)
2070                 return;
2071         if (sdev->status == SBP_DEV_DEAD)
2072                 return;
2073         if (sdev->status == SBP_DEV_RESET)
2074                 return;
2075         if (sdev->path) {
2076                 xpt_release_devq(sdev->path,
2077                                  sdev->freeze, TRUE);
2078                 sdev->freeze = 0;
2079                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2080                 xpt_free_path(sdev->path);
2081                 sdev->path = NULL;
2082         }
2083         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2084 }
2085
2086 static void
2087 sbp_cam_detach_target(struct sbp_target *target)
2088 {
2089         int i;
2090
2091         if (target->luns != NULL) {
2092 SBP_DEBUG(0)
2093                 printf("sbp_detach_target %d\n", target->target_id);
2094 END_DEBUG
2095                 callout_stop(&target->scan_callout);
2096                 for (i = 0; i < target->num_lun; i++)
2097                         sbp_cam_detach_sdev(target->luns[i]);
2098         }
2099 }
2100
2101 static void
2102 sbp_target_reset(struct sbp_dev *sdev, int method)
2103 {
2104         int i;
2105         struct sbp_target *target = sdev->target;
2106         struct sbp_dev *tsdev;
2107
2108         for (i = 0; i < target->num_lun; i++) {
2109                 tsdev = target->luns[i];
2110                 if (tsdev == NULL)
2111                         continue;
2112                 if (tsdev->status == SBP_DEV_DEAD)
2113                         continue;
2114                 if (tsdev->status == SBP_DEV_RESET)
2115                         continue;
2116                 xpt_freeze_devq(tsdev->path, 1);
2117                 tsdev->freeze ++;
2118                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2119                 if (method == 2)
2120                         tsdev->status = SBP_DEV_LOGIN;
2121         }
2122         switch(method) {
2123         case 1:
2124                 printf("target reset\n");
2125                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2126                 break;
2127         case 2:
2128                 printf("reset start\n");
2129                 sbp_reset_start(sdev);
2130                 break;
2131         }
2132
2133 }
2134
2135 static void
2136 sbp_mgm_timeout(void *arg)
2137 {
2138         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2139         struct sbp_dev *sdev = ocb->sdev;
2140         struct sbp_target *target = sdev->target;
2141
2142         sbp_show_sdev_info(sdev, 2);
2143         printf("request timeout(mgm orb:0x%08x) ... ",
2144             (u_int32_t)ocb->bus_addr);
2145         target->mgm_ocb_cur = NULL;
2146         sbp_free_ocb(sdev, ocb);
2147 #if 0
2148         /* XXX */
2149         printf("run next request\n");
2150         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2151 #endif
2152 #if 1
2153         printf("reset start\n");
2154         sbp_reset_start(sdev);
2155 #endif
2156 }
2157
2158 static void
2159 sbp_timeout(void *arg)
2160 {
2161         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2162         struct sbp_dev *sdev = ocb->sdev;
2163
2164         sbp_show_sdev_info(sdev, 2);
2165         printf("request timeout(cmd orb:0x%08x) ... ",
2166             (u_int32_t)ocb->bus_addr);
2167
2168         sdev->timeout ++;
2169         switch(sdev->timeout) {
2170         case 1:
2171                 printf("agent reset\n");
2172                 xpt_freeze_devq(sdev->path, 1);
2173                 sdev->freeze ++;
2174                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2175                 sbp_agent_reset(sdev);
2176                 break;
2177         case 2:
2178         case 3:
2179                 sbp_target_reset(sdev, sdev->timeout - 1);
2180                 break;
2181 #if 0
2182         default:
2183                 /* XXX give up */
2184                 sbp_cam_detach_target(target);
2185                 if (target->luns != NULL)
2186                         free(target->luns, M_SBP);
2187                 target->num_lun = 0;;
2188                 target->luns = NULL;
2189                 target->fwdev = NULL;
2190 #endif
2191         }
2192 }
2193
2194 static void
2195 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2196 {
2197
2198         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2199         struct sbp_target *target = NULL;
2200         struct sbp_dev *sdev = NULL;
2201
2202         /* target:lun -> sdev mapping */
2203         if (sbp != NULL
2204                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2205                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2206                 target = &sbp->targets[ccb->ccb_h.target_id];
2207                 if (target->fwdev != NULL
2208                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2209                                 && ccb->ccb_h.target_lun < target->num_lun) {
2210                         sdev = target->luns[ccb->ccb_h.target_lun];
2211                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2212                                 sdev->status != SBP_DEV_PROBE)
2213                                 sdev = NULL;
2214                 }
2215         }
2216
2217 SBP_DEBUG(1)
2218         if (sdev == NULL)
2219                 printf("invalid target %d lun %d\n",
2220                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2221 END_DEBUG
2222
2223         switch (ccb->ccb_h.func_code) {
2224         case XPT_SCSI_IO:
2225         case XPT_RESET_DEV:
2226         case XPT_GET_TRAN_SETTINGS:
2227         case XPT_SET_TRAN_SETTINGS:
2228         case XPT_CALC_GEOMETRY:
2229                 if (sdev == NULL) {
2230 SBP_DEBUG(1)
2231                         printf("%s:%d:%d:func_code 0x%04x: "
2232                                 "Invalid target (target needed)\n",
2233                                 device_get_nameunit(sbp->fd.dev),
2234                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2235                                 ccb->ccb_h.func_code);
2236 END_DEBUG
2237
2238                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2239                         xpt_done(ccb);
2240                         return;
2241                 }
2242                 break;
2243         case XPT_PATH_INQ:
2244         case XPT_NOOP:
2245                 /* The opcodes sometimes aimed at a target (sc is valid),
2246                  * sometimes aimed at the SIM (sc is invalid and target is
2247                  * CAM_TARGET_WILDCARD)
2248                  */
2249                 if (sbp == NULL &&
2250                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2251 SBP_DEBUG(0)
2252                         printf("%s:%d:%d func_code 0x%04x: "
2253                                 "Invalid target (no wildcard)\n",
2254                                 device_get_nameunit(sbp->fd.dev),
2255                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2256                                 ccb->ccb_h.func_code);
2257 END_DEBUG
2258                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2259                         xpt_done(ccb);
2260                         return;
2261                 }
2262                 break;
2263         default:
2264                 /* XXX Hm, we should check the input parameters */
2265                 break;
2266         }
2267
2268         switch (ccb->ccb_h.func_code) {
2269         case XPT_SCSI_IO:
2270         {
2271                 struct ccb_scsiio *csio;
2272                 struct sbp_ocb *ocb;
2273                 int speed;
2274                 void *cdb;
2275
2276                 csio = &ccb->csio;
2277
2278 SBP_DEBUG(2)
2279                 printf("%s:%d:%d XPT_SCSI_IO: "
2280                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2281                         ", flags: 0x%02x, "
2282                         "%db cmd/%db data/%db sense\n",
2283                         device_get_nameunit(sbp->fd.dev),
2284                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2285                         csio->cdb_io.cdb_bytes[0],
2286                         csio->cdb_io.cdb_bytes[1],
2287                         csio->cdb_io.cdb_bytes[2],
2288                         csio->cdb_io.cdb_bytes[3],
2289                         csio->cdb_io.cdb_bytes[4],
2290                         csio->cdb_io.cdb_bytes[5],
2291                         csio->cdb_io.cdb_bytes[6],
2292                         csio->cdb_io.cdb_bytes[7],
2293                         csio->cdb_io.cdb_bytes[8],
2294                         csio->cdb_io.cdb_bytes[9],
2295                         ccb->ccb_h.flags & CAM_DIR_MASK,
2296                         csio->cdb_len, csio->dxfer_len,
2297                         csio->sense_len);
2298 END_DEBUG
2299                 if(sdev == NULL){
2300                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2301                         xpt_done(ccb);
2302                         return;
2303                 }
2304 #if 0
2305                 /* if we are in probe stage, pass only probe commands */
2306                 if (sdev->status == SBP_DEV_PROBE) {
2307                         char *name;
2308                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2309                         printf("probe stage, periph name: %s\n", name);
2310                         if (strcmp(name, "probe") != 0) {
2311                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2312                                 xpt_done(ccb);
2313                                 return;
2314                         }
2315                 }
2316 #endif
2317                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2318                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2319                         xpt_done(ccb);
2320                         return;
2321                 }
2322
2323                 ocb->flags = OCB_ACT_CMD;
2324                 ocb->sdev = sdev;
2325                 ocb->ccb = ccb;
2326                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2327                 ocb->orb[0] = htonl(1 << 31);
2328                 ocb->orb[1] = 0;
2329                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2330                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2331                 speed = min(target->fwdev->speed, max_speed);
2332                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2333                                                 | ORB_CMD_MAXP(speed + 7));
2334                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2335                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2336                 }
2337
2338                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2339                         printf("sbp: CAM_SCATTER_VALID\n");
2340                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2341                         printf("sbp: CAM_DATA_PHYS\n");
2342
2343                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2344                         cdb = (void *)csio->cdb_io.cdb_ptr;
2345                 else
2346                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2347                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2348 /*
2349 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2350 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2351 */
2352                 if (ccb->csio.dxfer_len > 0) {
2353                         int error;
2354
2355                         crit_enter();
2356                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2357                                         /*dma map*/ocb->dmamap,
2358                                         ccb->csio.data_ptr,
2359                                         ccb->csio.dxfer_len,
2360                                         sbp_execute_ocb,
2361                                         ocb,
2362                                         /*flags*/0);
2363                         crit_exit();
2364                         if (error)
2365                                 printf("sbp: bus_dmamap_load error %d\n", error);
2366                 } else
2367                         sbp_execute_ocb(ocb, NULL, 0, 0);
2368                 break;
2369         }
2370         case XPT_CALC_GEOMETRY:
2371         {
2372                 struct ccb_calc_geometry *ccg;
2373 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2374                 u_int32_t size_mb;
2375                 u_int32_t secs_per_cylinder;
2376                 int extended = 1;
2377 #endif
2378
2379                 ccg = &ccb->ccg;
2380                 if (ccg->block_size == 0) {
2381                         printf("sbp_action1: block_size is 0.\n");
2382                         ccb->ccb_h.status = CAM_REQ_INVALID;
2383                         xpt_done(ccb);
2384                         break;
2385                 }
2386 SBP_DEBUG(1)
2387                 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2388 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2389                         "Volume size = %d\n",
2390 #else
2391                         "Volume size = %jd\n",
2392 #endif
2393                         device_get_nameunit(sbp->fd.dev),
2394                         cam_sim_path(sbp->sim),
2395                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2396 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2397                         (uintmax_t)
2398 #endif
2399                                 ccg->volume_size);
2400 END_DEBUG
2401
2402 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2403                 size_mb = ccg->volume_size
2404                         / ((1024L * 1024L) / ccg->block_size);
2405
2406                 if (size_mb > 1024 && extended) {
2407                         ccg->heads = 255;
2408                         ccg->secs_per_track = 63;
2409                 } else {
2410                         ccg->heads = 64;
2411                         ccg->secs_per_track = 32;
2412                 }
2413                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2414                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2415                 ccb->ccb_h.status = CAM_REQ_CMP;
2416 #else
2417                 cam_calc_geometry(ccg, /*extended*/1);
2418 #endif
2419                 xpt_done(ccb);
2420                 break;
2421         }
2422         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
2423         {
2424
2425 SBP_DEBUG(1)
2426                 printf("%s:%d:XPT_RESET_BUS: \n",
2427                         device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2428 END_DEBUG
2429
2430                 ccb->ccb_h.status = CAM_REQ_INVALID;
2431                 xpt_done(ccb);
2432                 break;
2433         }
2434         case XPT_PATH_INQ:              /* Path routing inquiry */
2435         {
2436                 struct ccb_pathinq *cpi = &ccb->cpi;
2437
2438 SBP_DEBUG(1)
2439                 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2440                         device_get_nameunit(sbp->fd.dev),
2441                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2442 END_DEBUG
2443                 cpi->version_num = 1; /* XXX??? */
2444                 cpi->hba_inquiry = PI_TAG_ABLE;
2445                 cpi->target_sprt = 0;
2446                 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2447                 cpi->hba_eng_cnt = 0;
2448                 cpi->max_target = SBP_NUM_TARGETS - 1;
2449                 cpi->max_lun = SBP_NUM_LUNS - 1;
2450                 cpi->initiator_id = SBP_INITIATOR;
2451                 cpi->bus_id = sim->bus_id;
2452                 cpi->base_transfer_speed = 400 * 1000 / 8;
2453                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2454                 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2455                 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2456                 cpi->unit_number = sim->unit_number;
2457
2458                 cpi->ccb_h.status = CAM_REQ_CMP;
2459                 xpt_done(ccb);
2460                 break;
2461         }
2462         case XPT_GET_TRAN_SETTINGS:
2463         {
2464                 struct ccb_trans_settings *cts = &ccb->cts;
2465 SBP_DEBUG(1)
2466                 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2467                         device_get_nameunit(sbp->fd.dev),
2468                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2469 END_DEBUG
2470                 /* Enable disconnect and tagged queuing */
2471                 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
2472                 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB;
2473
2474                 cts->ccb_h.status = CAM_REQ_CMP;
2475                 xpt_done(ccb);
2476                 break;
2477         }
2478         case XPT_ABORT:
2479                 ccb->ccb_h.status = CAM_UA_ABORT;
2480                 xpt_done(ccb);
2481                 break;
2482         case XPT_SET_TRAN_SETTINGS:
2483                 /* XXX */
2484         default:
2485                 ccb->ccb_h.status = CAM_REQ_INVALID;
2486                 xpt_done(ccb);
2487                 break;
2488         }
2489         return;
2490 }
2491
2492 static void
2493 sbp_action(struct cam_sim *sim, union ccb *ccb)
2494 {
2495         crit_enter();
2496         sbp_action1(sim, ccb);
2497         crit_exit();
2498 }
2499
2500 static void
2501 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2502 {
2503         int i;
2504         struct sbp_ocb *ocb;
2505         struct sbp_ocb *prev;
2506         bus_dma_segment_t *s;
2507
2508         if (error)
2509                 printf("sbp_execute_ocb: error=%d\n", error);
2510
2511         ocb = (struct sbp_ocb *)arg;
2512
2513 SBP_DEBUG(2)
2514         printf("sbp_execute_ocb: seg %d", seg);
2515         for (i = 0; i < seg; i++)
2516 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2517                 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2518 #else
2519                 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2520                                         (uintmax_t)segments[i].ds_len);
2521 #endif
2522         printf("\n");
2523 END_DEBUG
2524
2525         if (seg == 1) {
2526                 /* direct pointer */
2527                 s = &segments[0];
2528                 if (s->ds_len > SBP_SEG_MAX)
2529                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2530                 ocb->orb[3] = htonl(s->ds_addr);
2531                 ocb->orb[4] |= htonl(s->ds_len);
2532         } else if(seg > 1) {
2533                 /* page table */
2534                 for (i = 0; i < seg; i++) {
2535                         s = &segments[i];
2536 SBP_DEBUG(0)
2537                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2538                         if (s->ds_len < 16)
2539                                 printf("sbp_execute_ocb: warning, "
2540 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2541                                         "segment length(%d) is less than 16."
2542 #else
2543                                         "segment length(%zd) is less than 16."
2544 #endif
2545                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2546 END_DEBUG
2547                         if (s->ds_len > SBP_SEG_MAX)
2548                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2549                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2550                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2551                 }
2552                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2553         }
2554
2555         if (seg > 0)
2556                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2557                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2558                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2559         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2560         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2561         if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2562                 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2563                 sbp_orb_pointer(ocb->sdev, ocb);
2564         }
2565 }
2566
2567 static void
2568 sbp_poll(struct cam_sim *sim)
2569 {
2570         struct sbp_softc *sbp;
2571         struct firewire_comm *fc;
2572
2573         sbp = (struct sbp_softc *)sim->softc;
2574         fc = sbp->fd.fc;
2575
2576         fc->poll(fc, 0, -1);
2577
2578         return;
2579 }
2580
2581 static struct sbp_ocb *
2582 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2583 {
2584         struct sbp_ocb *ocb;
2585         struct sbp_ocb *next;
2586         int order = 0;
2587         int flags;
2588
2589         crit_enter();
2590
2591 SBP_DEBUG(1)
2592         sbp_show_sdev_info(sdev, 2);
2593         printf("%s: 0x%08x src %d\n",
2594             __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2595 END_DEBUG
2596         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2597                 next = STAILQ_NEXT(ocb, ocb);
2598                 flags = ocb->flags;
2599                 if (OCB_MATCH(ocb, sbp_status)) {
2600                         /* found */
2601                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2602                         if (ocb->ccb != NULL)
2603                                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2604                         if (ntohl(ocb->orb[4]) & 0xffff) {
2605                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2606                                         ocb->dmamap,
2607                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2608                                         BUS_DMASYNC_POSTREAD :
2609                                         BUS_DMASYNC_POSTWRITE);
2610                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2611                                         ocb->dmamap);
2612                         }
2613                         if (sbp_status->src == SRC_NO_NEXT) {
2614                                 if (next != NULL)
2615                                         sbp_orb_pointer(sdev, next);
2616                                 else if (order > 0) {
2617                                         /*
2618                                          * Unordered execution
2619                                          * We need to send pointer for
2620                                          * next ORB
2621                                          */
2622                                         sdev->flags |= ORB_LINK_DEAD;
2623                                 }
2624                         }
2625                         break;
2626                 } else
2627                         order ++;
2628         }
2629         crit_exit();
2630 SBP_DEBUG(0)
2631         if (ocb && order > 0) {
2632                 sbp_show_sdev_info(sdev, 2);
2633                 printf("unordered execution order:%d\n", order);
2634         }
2635 END_DEBUG
2636         return (ocb);
2637 }
2638
2639 static struct sbp_ocb *
2640 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2641 {
2642         struct sbp_ocb *prev;
2643
2644         crit_enter();
2645
2646 SBP_DEBUG(1)
2647         sbp_show_sdev_info(sdev, 2);
2648 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2649         printf("%s: 0x%08x\n", __func__, ocb->bus_addr);
2650 #else
2651         printf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2652 #endif
2653 END_DEBUG
2654         prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2655         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2656
2657         if (ocb->ccb != NULL)
2658                 callout_reset(&ocb->ccb->ccb_h.timeout_ch,
2659                     (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb);
2660
2661         if (prev != NULL) {
2662 SBP_DEBUG(2)
2663 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2664                 printf("linking chain 0x%x -> 0x%x\n",
2665                     prev->bus_addr, ocb->bus_addr);
2666 #else
2667                 printf("linking chain 0x%jx -> 0x%jx\n",
2668                     (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2669 #endif
2670 END_DEBUG
2671                 prev->orb[1] = htonl(ocb->bus_addr);
2672                 prev->orb[0] = 0;
2673         }
2674         crit_exit();
2675
2676         return prev;
2677 }
2678
2679 static struct sbp_ocb *
2680 sbp_get_ocb(struct sbp_dev *sdev)
2681 {
2682         struct sbp_ocb *ocb;
2683
2684         crit_enter();
2685         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2686         if (ocb == NULL) {
2687                 printf("ocb shortage!!!\n");
2688                 return NULL;
2689         }
2690         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2691         crit_exit();
2692         ocb->ccb = NULL;
2693         return (ocb);
2694 }
2695
2696 static void
2697 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2698 {
2699         ocb->flags = 0;
2700         ocb->ccb = NULL;
2701         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2702 }
2703
2704 static void
2705 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2706 {
2707         struct sbp_dev *sdev;
2708
2709         sdev = ocb->sdev;
2710 SBP_DEBUG(0)
2711         sbp_show_sdev_info(sdev, 2);
2712 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2713         printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2714 #else
2715         printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2716 #endif
2717 END_DEBUG
2718 SBP_DEBUG(1)
2719         if (ocb->ccb != NULL)
2720                 sbp_print_scsi_cmd(ocb);
2721 END_DEBUG
2722         if (ntohl(ocb->orb[4]) & 0xffff) {
2723                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2724                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2725                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2726                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2727         }
2728         if (ocb->ccb != NULL) {
2729                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2730                 ocb->ccb->ccb_h.status = status;
2731                 xpt_done(ocb->ccb);
2732         }
2733         sbp_free_ocb(sdev, ocb);
2734 }
2735
2736 static void
2737 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2738 {
2739         struct sbp_ocb *ocb, *next;
2740         STAILQ_HEAD(, sbp_ocb) temp;
2741
2742         crit_enter();
2743         bcopy(&sdev->ocbs, &temp, sizeof(temp));
2744         STAILQ_INIT(&sdev->ocbs);
2745         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2746                 next = STAILQ_NEXT(ocb, ocb);
2747                 sbp_abort_ocb(ocb, status);
2748         }
2749         crit_exit();
2750 }
2751
2752 static devclass_t sbp_devclass;
2753
2754 /*
2755  * Because sbp is a static device that always exists under any attached
2756  * firewire device, and not scanned by the firewire device, we need an
2757  * identify function to install the device.  For our sanity we want
2758  * the sbp device to have the same unit number as the fireweire device.
2759  */
2760
2761 static device_method_t sbp_methods[] = {
2762         /* device interface */
2763         DEVMETHOD(device_identify,      bus_generic_identify_sameunit),
2764         DEVMETHOD(device_probe,         sbp_probe),
2765         DEVMETHOD(device_attach,        sbp_attach),
2766         DEVMETHOD(device_detach,        sbp_detach),
2767         DEVMETHOD(device_shutdown,      sbp_shutdown),
2768
2769         { 0, 0 }
2770 };
2771
2772 static driver_t sbp_driver = {
2773         "sbp",
2774         sbp_methods,
2775         sizeof(struct sbp_softc),
2776 };
2777
2778 DECLARE_DUMMY_MODULE(sbp);
2779 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2780 MODULE_VERSION(sbp, 1);
2781 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2782 MODULE_DEPEND(sbp, cam, 1, 1, 1);