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 1.9 2004/02/05 17:51:44 joerg 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
  57 #ifdef __DragonFly__
  58 #include <bus/cam/cam.h>
  59 #include <bus/cam/cam_ccb.h>
  60 #include <bus/cam/cam_sim.h>
  61 #include <bus/cam/cam_xpt_sim.h>
  62 #include <bus/cam/cam_debug.h>
  63 #include <bus/cam/cam_periph.h>
  64 #include <bus/cam/scsi/scsi_all.h>
  65
  66 #include <bus/firewire/firewire.h>
  67 #include <bus/firewire/firewirereg.h>
  68 #include <bus/firewire/fwdma.h>
  69 #include <bus/firewire/iec13213.h>
  70 #include "sbp.h"
  71 #else
  72 #include <cam/cam.h>
  73 #include <cam/cam_ccb.h>
  74 #include <cam/cam_sim.h>
  75 #include <cam/cam_xpt_sim.h>
  76 #include <cam/cam_debug.h>
  77 #include <cam/cam_periph.h>
  78 #include <cam/scsi/scsi_all.h>
  79 #endif
  80
  81 #define ccb_sdev_ptr    spriv_ptr0
  82 #define ccb_sbp_ptr     spriv_ptr1
  83
  84 #define SBP_NUM_TARGETS 8 /* MAX 64 */
  85 /*
  86  * Scan_bus doesn't work for more than 8 LUNs
  87  * because of CAM_SCSI2_MAXLUN in cam_xpt.c
  88  */
  89 #define SBP_NUM_LUNS 64
  90 #define SBP_DMA_SIZE PAGE_SIZE
  91 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
  92 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
  93 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
  94
  95 /*
  96  * STATUS FIFO addressing
  97  *   bit
  98  * -----------------------
  99  *  0- 1( 2): 0 (alingment)
 100  *  2- 7( 6): target
 101  *  8-15( 8): lun
 102  * 16-31( 8): reserved
 103  * 32-47(16): SBP_BIND_HI
 104  * 48-64(16): bus_id, node_id
 105  */
 106 #define SBP_BIND_HI 0x1
 107 #define SBP_DEV2ADDR(t, l) \
 108         (((u_int64_t)SBP_BIND_HI << 32) \
 109         | (((l) & 0xff) << 8) \
 110         | (((t) & 0x3f) << 2))
 111 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
 112 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
 113 #define SBP_INITIATOR 7
 114
 115 static char *orb_fun_name[] = {
 116         ORB_FUN_NAMES
 117 };
 118
 119 static int debug = 0;
 120 static int auto_login = 1;
 121 static int max_speed = -1;
 122 static int sbp_cold = 1;
 123 static int ex_login = 1;
 124 static int login_delay = 1000;  /* msec */
 125 static int scan_delay = 500;    /* msec */
 126 static int sbp_tags = 0;
 127
 128 SYSCTL_DECL(_hw_firewire);
 129 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 130 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 131         "SBP debug flag");
 132 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 133         "SBP perform login automatically");
 134 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 135         "SBP transfer max speed");
 136 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 137         &ex_login, 0, "SBP transfer max speed");
 138 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 139         &login_delay, 0, "SBP login delay in msec");
 140 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 141         &scan_delay, 0, "SBP scan delay in msec");
 142 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 143         "SBP tagged queuing support");
 144
 145 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 146 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 147 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 148 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 149 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 150 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 151
 152 #define NEED_RESPONSE 0
 153
 154 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 155 #ifdef __sparc64__ /* iommu */
 156 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
 157 #else
 158 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
 159 #endif
 160 struct sbp_ocb {
 161         STAILQ_ENTRY(sbp_ocb)   ocb;
 162         union ccb       *ccb;
 163         bus_addr_t      bus_addr;
 164         u_int32_t       orb[8];
 165 #define IND_PTR_OFFSET  (8*sizeof(u_int32_t))
 166         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 167         struct sbp_dev  *sdev;
 168         int             flags; /* XXX should be removed */
 169         bus_dmamap_t    dmamap;
 170 };
 171
 172 #define OCB_ACT_MGM 0
 173 #define OCB_ACT_CMD 1
 174 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 175
 176 struct sbp_dev{
 177 #define SBP_DEV_RESET           0       /* accept login */
 178 #define SBP_DEV_LOGIN           1       /* to login */
 179 #if 0
 180 #define SBP_DEV_RECONN          2       /* to reconnect */
 181 #endif
 182 #define SBP_DEV_TOATTACH        3       /* to attach */
 183 #define SBP_DEV_PROBE           4       /* scan lun */
 184 #define SBP_DEV_ATTACHED        5       /* in operation */
 185 #define SBP_DEV_DEAD            6       /* unavailable unit */
 186 #define SBP_DEV_RETRY           7       /* unavailable unit */
 187         u_int8_t status:4,
 188                  timeout:4;
 189         u_int8_t type;
 190         u_int16_t lun_id;
 191         u_int16_t freeze;
 192 #define ORB_LINK_DEAD           (1 << 0)
 193 #define VALID_LUN               (1 << 1)
 194 #define ORB_POINTER_ACTIVE      (1 << 2)
 195 #define ORB_POINTER_NEED        (1 << 3)
 196         u_int16_t flags;
 197         struct cam_path *path;
 198         struct sbp_target *target;
 199         struct fwdma_alloc dma;
 200         struct sbp_login_res *login;
 201         struct callout login_callout;
 202         struct sbp_ocb *ocb;
 203         STAILQ_HEAD(, sbp_ocb) ocbs;
 204         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 205         char vendor[32];
 206         char product[32];
 207         char revision[10];
 208 };
 209
 210 struct sbp_target {
 211         int target_id;
 212         int num_lun;
 213         struct sbp_dev  **luns;
 214         struct sbp_softc *sbp;
 215         struct fw_device *fwdev;
 216         u_int32_t mgm_hi, mgm_lo;
 217         struct sbp_ocb *mgm_ocb_cur;
 218         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 219         struct callout mgm_ocb_timeout;
 220         struct callout scan_callout;
 221         STAILQ_HEAD(, fw_xfer) xferlist;
 222         int n_xfer;
 223 };
 224
 225 struct sbp_softc {
 226         struct firewire_dev_comm fd;
 227         struct cam_sim  *sim;
 228         struct cam_path  *path;
 229         struct sbp_target targets[SBP_NUM_TARGETS];
 230         struct fw_bind fwb;
 231         bus_dma_tag_t   dmat;
 232         struct timeval last_busreset;
 233 #define SIMQ_FREEZED 1
 234         int flags;
 235 };
 236
 237 static void sbp_post_explore (void *);
 238 static void sbp_recv (struct fw_xfer *);
 239 static void sbp_mgm_callback (struct fw_xfer *);
 240 #if 0
 241 static void sbp_cmd_callback (struct fw_xfer *);
 242 #endif
 243 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 244 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 245 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 246 static void sbp_abort_ocb (struct sbp_ocb *, int);
 247 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 248 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 249 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 250 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 251 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 252 static void sbp_cam_detach_sdev(struct sbp_dev *);
 253 static void sbp_free_sdev(struct sbp_dev *);
 254 static void sbp_cam_detach_target (struct sbp_target *);
 255 static void sbp_free_target (struct sbp_target *);
 256 static void sbp_mgm_timeout (void *arg);
 257 static void sbp_timeout (void *arg);
 258 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 259
 260 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 261
 262 /* cam related functions */
 263 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 264 static void     sbp_poll(struct cam_sim *sim);
 265 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 266 static void     sbp_cam_scan_target(void *arg);
 267
 268 static char *orb_status0[] = {
 269         /* 0 */ "No additional information to report",
 270         /* 1 */ "Request type not supported",
 271         /* 2 */ "Speed not supported",
 272         /* 3 */ "Page size not supported",
 273         /* 4 */ "Access denied",
 274         /* 5 */ "Logical unit not supported",
 275         /* 6 */ "Maximum payload too small",
 276         /* 7 */ "Reserved for future standardization",
 277         /* 8 */ "Resources unavailable",
 278         /* 9 */ "Function rejected",
 279         /* A */ "Login ID not recognized",
 280         /* B */ "Dummy ORB completed",
 281         /* C */ "Request aborted",
 282         /* FF */ "Unspecified error"
 283 #define MAX_ORB_STATUS0 0xd
 284 };
 285
 286 static char *orb_status1_object[] = {
 287         /* 0 */ "Operation request block (ORB)",
 288         /* 1 */ "Data buffer",
 289         /* 2 */ "Page table",
 290         /* 3 */ "Unable to specify"
 291 };
 292
 293 static char *orb_status1_serial_bus_error[] = {
 294         /* 0 */ "Missing acknowledge",
 295         /* 1 */ "Reserved; not to be used",
 296         /* 2 */ "Time-out error",
 297         /* 3 */ "Reserved; not to be used",
 298         /* 4 */ "Busy retry limit exceeded(X)",
 299         /* 5 */ "Busy retry limit exceeded(A)",
 300         /* 6 */ "Busy retry limit exceeded(B)",
 301         /* 7 */ "Reserved for future standardization",
 302         /* 8 */ "Reserved for future standardization",
 303         /* 9 */ "Reserved for future standardization",
 304         /* A */ "Reserved for future standardization",
 305         /* B */ "Tardy retry limit exceeded",
 306         /* C */ "Conflict error",
 307         /* D */ "Data error",
 308         /* E */ "Type error",
 309         /* F */ "Address error"
 310 };
 311
 312 static void
 313 sbp_identify(driver_t *driver, device_t parent)
 314 {
 315         device_t child;
 316 SBP_DEBUG(0)
 317         printf("sbp_identify\n");
 318 END_DEBUG
 319
 320         child = BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
 321 }
 322
 323 /*
 324  * sbp_probe()
 325  */
 326 static int
 327 sbp_probe(device_t dev)
 328 {
 329         device_t pa;
 330
 331 SBP_DEBUG(0)
 332         printf("sbp_probe\n");
 333 END_DEBUG
 334
 335         pa = device_get_parent(dev);
 336         if(device_get_unit(dev) != device_get_unit(pa)){
 337                 return(ENXIO);
 338         }
 339
 340         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 341
 342         if (bootverbose)
 343                 debug = bootverbose;
 344         return (0);
 345 }
 346
 347 static void
 348 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
 349 {
 350         struct fw_device *fwdev;
 351
 352         printf("%s:%d:%d ",
 353                 device_get_nameunit(sdev->target->sbp->fd.dev),
 354                 sdev->target->target_id,
 355                 sdev->lun_id
 356         );
 357         if (new == 2) {
 358                 return;
 359         }
 360         fwdev = sdev->target->fwdev;
 361         printf("ordered:%d type:%d EUI:%08x%08x node:%d "
 362                 "speed:%d maxrec:%d",
 363                 (sdev->type & 0x40) >> 6,
 364                 (sdev->type & 0x1f),
 365                 fwdev->eui.hi,
 366                 fwdev->eui.lo,
 367                 fwdev->dst,
 368                 fwdev->speed,
 369                 fwdev->maxrec
 370         );
 371         if (new)
 372                 printf(" new!\n");
 373         else
 374                 printf("\n");
 375         sbp_show_sdev_info(sdev, 2);
 376         printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
 377 }
 378
 379 static struct {
 380         int bus;
 381         int target;
 382         struct fw_eui64 eui;
 383 } wired[] = {
 384         /* Bus  Target  EUI64 */
 385 #if 0
 386         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 387         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 388         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 389 #endif
 390         {-1,    -1,     {0,0}}
 391 };
 392
 393 static int
 394 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 395 {
 396         int bus, i, target=-1;
 397         char w[SBP_NUM_TARGETS];
 398
 399         bzero(w, sizeof(w));
 400         bus = device_get_unit(sbp->fd.dev);
 401
 402         /* XXX wired-down configuration should be gotten from
 403                                         tunable or device hint */
 404         for (i = 0; wired[i].bus >= 0; i ++) {
 405                 if (wired[i].bus == bus) {
 406                         w[wired[i].target] = 1;
 407                         if (wired[i].eui.hi == fwdev->eui.hi &&
 408                                         wired[i].eui.lo == fwdev->eui.lo)
 409                                 target = wired[i].target;
 410                 }
 411         }
 412         if (target >= 0) {
 413                 if(target < SBP_NUM_TARGETS &&
 414                                 sbp->targets[target].fwdev == NULL)
 415                         return(target);
 416                 device_printf(sbp->fd.dev,
 417                         "target %d is not free for %08x:%08x\n",
 418                         target, fwdev->eui.hi, fwdev->eui.lo);
 419                 target = -1;
 420         }
 421         /* non-wired target */
 422         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 423                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 424                         target = i;
 425                         break;
 426                 }
 427
 428         return target;
 429 }
 430
 431 static void
 432 sbp_alloc_lun(struct sbp_target *target)
 433 {
 434         struct crom_context cc;
 435         struct csrreg *reg;
 436         struct sbp_dev *sdev, **newluns;
 437         struct sbp_softc *sbp;
 438         int maxlun, lun, i;
 439
 440         sbp = target->sbp;
 441         crom_init_context(&cc, target->fwdev->csrrom);
 442         /* XXX shoud parse appropriate unit directories only */
 443         maxlun = -1;
 444         while (cc.depth >= 0) {
 445                 reg = crom_search_key(&cc, CROM_LUN);
 446                 if (reg == NULL)
 447                         break;
 448                 lun = reg->val & 0xffff;
 449 SBP_DEBUG(0)
 450                 printf("target %d lun %d found\n", target->target_id, lun);
 451 END_DEBUG
 452                 if (maxlun < lun)
 453                         maxlun = lun;
 454                 crom_next(&cc);
 455         }
 456         if (maxlun < 0)
 457                 printf("%s:%d no LUN found\n",
 458                     device_get_nameunit(target->sbp->fd.dev),
 459                     target->target_id);
 460
 461         maxlun ++;
 462         if (maxlun >= SBP_NUM_LUNS)
 463                 maxlun = SBP_NUM_LUNS;
 464
 465         /* Invalidiate stale devices */
 466         for (lun = 0; lun < target->num_lun; lun ++) {
 467                 sdev = target->luns[lun];
 468                 if (sdev == NULL)
 469                         continue;
 470                 sdev->flags &= ~VALID_LUN;
 471                 if (lun >= maxlun) {
 472                         /* lost device */
 473                         sbp_cam_detach_sdev(sdev);
 474                         sbp_free_sdev(sdev);
 475                 }
 476         }
 477
 478         /* Reallocate */
 479         if (maxlun != target->num_lun) {
 480                 newluns = (struct sbp_dev **) realloc(target->luns,
 481                     sizeof(struct sbp_dev *) * maxlun,
 482                     M_SBP, M_NOWAIT | M_ZERO);
 483
 484                 if (newluns == NULL) {
 485                         printf("%s: realloc failed\n", __FUNCTION__);
 486                         newluns = target->luns;
 487                         maxlun = target->num_lun;
 488                 }
 489
 490                 /*
 491                  * We must zero the extended region for the case
 492                  * realloc() doesn't allocate new buffer.
 493                  */
 494                 if (maxlun > target->num_lun)
 495                         bzero(&newluns[target->num_lun],
 496                             sizeof(struct sbp_dev *) *
 497                             (maxlun - target->num_lun));
 498
 499                 target->luns = newluns;
 500                 target->num_lun = maxlun;
 501         }
 502
 503         crom_init_context(&cc, target->fwdev->csrrom);
 504         while (cc.depth >= 0) {
 505                 int new = 0;
 506
 507                 reg = crom_search_key(&cc, CROM_LUN);
 508                 if (reg == NULL)
 509                         break;
 510                 lun = reg->val & 0xffff;
 511                 if (lun >= SBP_NUM_LUNS) {
 512                         printf("too large lun %d\n", lun);
 513                         goto next;
 514                 }
 515
 516                 sdev = target->luns[lun];
 517                 if (sdev == NULL) {
 518                         sdev = malloc(sizeof(struct sbp_dev),
 519                             M_SBP, M_NOWAIT | M_ZERO);
 520                         if (sdev == NULL) {
 521                                 printf("%s: malloc failed\n", __FUNCTION__);
 522                                 goto next;
 523                         }
 524                         target->luns[lun] = sdev;
 525                         sdev->lun_id = lun;
 526                         sdev->target = target;
 527                         STAILQ_INIT(&sdev->ocbs);
 528                         CALLOUT_INIT(&sdev->login_callout);
 529                         sdev->status = SBP_DEV_RESET;
 530                         new = 1;
 531                 }
 532                 sdev->flags |= VALID_LUN;
 533                 sdev->type = (reg->val & 0xff0000) >> 16;
 534
 535                 if (new == 0)
 536                         goto next;
 537
 538                 fwdma_malloc(sbp->fd.fc,
 539                         /* alignment */ sizeof(u_int32_t),
 540                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 541                 if (sdev->dma.v_addr == NULL) {
 542                         printf("%s: dma space allocation failed\n",
 543                                                         __FUNCTION__);
 544                         free(sdev, M_SBP);
 545                         target->luns[lun] = NULL;
 546                         goto next;
 547                 }
 548                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 549                 sdev->ocb = (struct sbp_ocb *)
 550                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 551                 bzero((char *)sdev->ocb,
 552                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 553
 554                 STAILQ_INIT(&sdev->free_ocbs);
 555                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 556                         struct sbp_ocb *ocb;
 557                         ocb = &sdev->ocb[i];
 558                         ocb->bus_addr = sdev->dma.bus_addr
 559                                 + SBP_LOGIN_SIZE
 560                                 + sizeof(struct sbp_ocb) * i
 561                                 + offsetof(struct sbp_ocb, orb[0]);
 562                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 563                                 printf("sbp_attach: cannot create dmamap\n");
 564                                 /* XXX */
 565                                 goto next;
 566                         }
 567                         sbp_free_ocb(sdev, ocb);
 568                 }
 569 next:
 570                 crom_next(&cc);
 571         }
 572
 573         for (lun = 0; lun < target->num_lun; lun ++) {
 574                 sdev = target->luns[lun];
 575                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 576                         sbp_cam_detach_sdev(sdev);
 577                         sbp_free_sdev(sdev);
 578                         target->luns[lun] = NULL;
 579                 }
 580         }
 581 }
 582
 583 static struct sbp_target *
 584 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 585 {
 586         int i;
 587         struct sbp_target *target;
 588         struct crom_context cc;
 589         struct csrreg *reg;
 590
 591 SBP_DEBUG(1)
 592         printf("sbp_alloc_target\n");
 593 END_DEBUG
 594         i = sbp_new_target(sbp, fwdev);
 595         if (i < 0) {
 596                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 597                 return NULL;
 598         }
 599         /* new target */
 600         target = &sbp->targets[i];
 601         target->sbp = sbp;
 602         target->fwdev = fwdev;
 603         target->target_id = i;
 604         /* XXX we may want to reload mgm port after each bus reset */
 605         /* XXX there might be multiple management agents */
 606         crom_init_context(&cc, target->fwdev->csrrom);
 607         reg = crom_search_key(&cc, CROM_MGM);
 608         if (reg == NULL || reg->val == 0) {
 609                 printf("NULL management address\n");
 610                 target->fwdev = NULL;
 611                 return NULL;
 612         }
 613         target->mgm_hi = 0xffff;
 614         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 615         target->mgm_ocb_cur = NULL;
 616 SBP_DEBUG(1)
 617         printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 618 END_DEBUG
 619         STAILQ_INIT(&target->xferlist);
 620         target->n_xfer = 0;
 621         STAILQ_INIT(&target->mgm_ocb_queue);
 622         CALLOUT_INIT(&target->mgm_ocb_timeout);
 623         CALLOUT_INIT(&target->scan_callout);
 624
 625         target->luns = NULL;
 626         target->num_lun = 0;
 627         return target;
 628 }
 629
 630 static void
 631 sbp_probe_lun(struct sbp_dev *sdev)
 632 {
 633         struct fw_device *fwdev;
 634         struct crom_context c, *cc = &c;
 635         struct csrreg *reg;
 636
 637         bzero(sdev->vendor, sizeof(sdev->vendor));
 638         bzero(sdev->product, sizeof(sdev->product));
 639
 640         fwdev = sdev->target->fwdev;
 641         crom_init_context(cc, fwdev->csrrom);
 642         /* get vendor string */
 643         crom_search_key(cc, CSRKEY_VENDOR);
 644         crom_next(cc);
 645         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 646         /* skip to the unit directory for SBP-2 */
 647         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 648                 if (reg->val == CSRVAL_T10SBP2)
 649                         break;
 650                 crom_next(cc);
 651         }
 652         /* get firmware revision */
 653         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 654         if (reg != NULL)
 655                 snprintf(sdev->revision, sizeof(sdev->revision),
 656                                                 "%06x", reg->val);
 657         /* get product string */
 658         crom_search_key(cc, CSRKEY_MODEL);
 659         crom_next(cc);
 660         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 661 }
 662
 663 static void
 664 sbp_login_callout(void *arg)
 665 {
 666         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 667         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 668 }
 669
 670 static void
 671 sbp_login(struct sbp_dev *sdev)
 672 {
 673         struct timeval delta;
 674         struct timeval t;
 675         int ticks = 0;
 676
 677         microtime(&delta);
 678         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 679         t.tv_sec = login_delay / 1000;
 680         t.tv_usec = (login_delay % 1000) * 1000;
 681         timevalsub(&t, &delta);
 682         if (t.tv_sec >= 0 && t.tv_usec > 0)
 683                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 684 SBP_DEBUG(0)
 685         printf("%s: sec = %ld usec = %ld ticks = %d\n", __FUNCTION__,
 686             t.tv_sec, t.tv_usec, ticks);
 687 END_DEBUG
 688         callout_reset(&sdev->login_callout, ticks,
 689                         sbp_login_callout, (void *)(sdev));
 690 }
 691
 692 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 693         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 694
 695 static void
 696 sbp_probe_target(void *arg)
 697 {
 698         struct sbp_target *target = (struct sbp_target *)arg;
 699         struct sbp_softc *sbp;
 700         struct sbp_dev *sdev;
 701         struct firewire_comm *fc;
 702         int i, alive;
 703
 704         alive = SBP_FWDEV_ALIVE(target->fwdev);
 705 SBP_DEBUG(1)
 706         printf("sbp_probe_target %d\n", target->target_id);
 707         if (!alive)
 708                 printf("not alive\n");
 709 END_DEBUG
 710
 711         sbp = target->sbp;
 712         fc = target->sbp->fd.fc;
 713         sbp_alloc_lun(target);
 714
 715         /* XXX untimeout mgm_ocb and dequeue */
 716         for (i=0; i < target->num_lun; i++) {
 717                 sdev = target->luns[i];
 718                 if (sdev == NULL)
 719                         continue;
 720                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 721                         if (sdev->path != NULL) {
 722                                 xpt_freeze_devq(sdev->path, 1);
 723                                 sdev->freeze ++;
 724                         }
 725                         sbp_probe_lun(sdev);
 726 SBP_DEBUG(0)
 727                         sbp_show_sdev_info(sdev,
 728                                         (sdev->status == SBP_DEV_RESET));
 729 END_DEBUG
 730
 731                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 732                         switch (sdev->status) {
 733                         case SBP_DEV_RESET:
 734                                 /* new or revived target */
 735                                 if (auto_login)
 736                                         sbp_login(sdev);
 737                                 break;
 738                         case SBP_DEV_TOATTACH:
 739                         case SBP_DEV_PROBE:
 740                         case SBP_DEV_ATTACHED:
 741                         case SBP_DEV_RETRY:
 742                         default:
 743                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 744                                 break;
 745                         }
 746                 } else {
 747                         switch (sdev->status) {
 748                         case SBP_DEV_ATTACHED:
 749 SBP_DEBUG(0)
 750                                 /* the device has gone */
 751                                 sbp_show_sdev_info(sdev, 2);
 752                                 printf("lost target\n");
 753 END_DEBUG
 754                                 if (sdev->path) {
 755                                         xpt_freeze_devq(sdev->path, 1);
 756                                         sdev->freeze ++;
 757                                 }
 758                                 sdev->status = SBP_DEV_RETRY;
 759                                 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 760                                 break;
 761                         case SBP_DEV_PROBE:
 762                         case SBP_DEV_TOATTACH:
 763                                 sdev->status = SBP_DEV_RESET;
 764                                 break;
 765                         case SBP_DEV_RETRY:
 766                         case SBP_DEV_RESET:
 767                         case SBP_DEV_DEAD:
 768                                 break;
 769                         }
 770                 }
 771         }
 772 }
 773
 774 static void
 775 sbp_post_busreset(void *arg)
 776 {
 777         struct sbp_softc *sbp;
 778
 779         sbp = (struct sbp_softc *)arg;
 780 SBP_DEBUG(0)
 781         printf("sbp_post_busreset\n");
 782 END_DEBUG
 783         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 784                 xpt_freeze_simq(sbp->sim, /*count*/1);
 785                 sbp->sim->flags |= SIMQ_FREEZED;
 786         }
 787         microtime(&sbp->last_busreset);
 788 }
 789
 790 static void
 791 sbp_post_explore(void *arg)
 792 {
 793         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 794         struct sbp_target *target;
 795         struct fw_device *fwdev;
 796         int i, alive;
 797
 798 SBP_DEBUG(0)
 799         printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
 800 END_DEBUG
 801         if (sbp_cold > 0)
 802                 sbp_cold --;
 803
 804 #if 0
 805         /*
 806          * XXX don't let CAM the bus rest.
 807          * CAM tries to do something with freezed (DEV_RETRY) devices.
 808          */
 809         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 810 #endif
 811
 812         /* Gabage Collection */
 813         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 814                 target = &sbp->targets[i];
 815                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 816                         if (target->fwdev == NULL || target->fwdev == fwdev)
 817                                 break;
 818                 if (fwdev == NULL) {
 819                         /* device has removed in lower driver */
 820                         sbp_cam_detach_target(target);
 821                         sbp_free_target(target);
 822                 }
 823         }
 824         /* traverse device list */
 825         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 826 SBP_DEBUG(0)
 827                 printf("sbp_post_explore: EUI:%08x%08x ",
 828                                 fwdev->eui.hi, fwdev->eui.lo);
 829                 if (fwdev->status != FWDEVATTACHED)
 830                         printf("not attached, state=%d.\n", fwdev->status);
 831                 else
 832                         printf("attached\n");
 833 END_DEBUG
 834                 alive = SBP_FWDEV_ALIVE(fwdev);
 835                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 836                         target = &sbp->targets[i];
 837                         if(target->fwdev == fwdev ) {
 838                                 /* known target */
 839                                 break;
 840                         }
 841                 }
 842                 if(i == SBP_NUM_TARGETS){
 843                         if (alive) {
 844                                 /* new target */
 845                                 target = sbp_alloc_target(sbp, fwdev);
 846                                 if (target == NULL)
 847                                         continue;
 848                         } else {
 849                                 continue;
 850                         }
 851                 }
 852                 sbp_probe_target((void *)target);
 853                 if (target->num_lun == 0)
 854                         sbp_free_target(target);
 855         }
 856         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 857         sbp->sim->flags &= ~SIMQ_FREEZED;
 858 }
 859
 860 #if NEED_RESPONSE
 861 static void
 862 sbp_loginres_callback(struct fw_xfer *xfer){
 863         int s;
 864         struct sbp_dev *sdev;
 865         sdev = (struct sbp_dev *)xfer->sc;
 866 SBP_DEBUG(1)
 867         sbp_show_sdev_info(sdev, 2);
 868         printf("sbp_loginres_callback\n");
 869 END_DEBUG
 870         /* recycle */
 871         s = splfw();
 872         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 873         splx(s);
 874         return;
 875 }
 876 #endif
 877
 878 static __inline void
 879 sbp_xfer_free(struct fw_xfer *xfer)
 880 {
 881         struct sbp_dev *sdev;
 882         int s;
 883
 884         sdev = (struct sbp_dev *)xfer->sc;
 885         fw_xfer_unload(xfer);
 886         s = splfw();
 887         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 888         splx(s);
 889 }
 890
 891 static void
 892 sbp_reset_start_callback(struct fw_xfer *xfer)
 893 {
 894         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 895         struct sbp_target *target = sdev->target;
 896         int i;
 897
 898         if (xfer->resp != 0) {
 899                 sbp_show_sdev_info(sdev, 2);
 900                 printf("sbp_reset_start failed: resp=%d\n", xfer->resp);
 901         }
 902
 903         for (i = 0; i < target->num_lun; i++) {
 904                 tsdev = target->luns[i];
 905                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 906                         sbp_login(tsdev);
 907         }
 908 }
 909
 910 static void
 911 sbp_reset_start(struct sbp_dev *sdev)
 912 {
 913         struct fw_xfer *xfer;
 914         struct fw_pkt *fp;
 915
 916 SBP_DEBUG(0)
 917         sbp_show_sdev_info(sdev, 2);
 918         printf("sbp_reset_start\n");
 919 END_DEBUG
 920
 921         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 922         xfer->act.hand = sbp_reset_start_callback;
 923         fp = &xfer->send.hdr;
 924         fp->mode.wreqq.dest_hi = 0xffff;
 925         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 926         fp->mode.wreqq.data = htonl(0xf);
 927         fw_asyreq(xfer->fc, -1, xfer);
 928 }
 929
 930 static void
 931 sbp_mgm_callback(struct fw_xfer *xfer)
 932 {
 933         struct sbp_dev *sdev;
 934         int resp;
 935
 936         sdev = (struct sbp_dev *)xfer->sc;
 937
 938 SBP_DEBUG(1)
 939         sbp_show_sdev_info(sdev, 2);
 940         printf("sbp_mgm_callback\n");
 941 END_DEBUG
 942         resp = xfer->resp;
 943         sbp_xfer_free(xfer);
 944 #if 0
 945         if (resp != 0) {
 946                 sbp_show_sdev_info(sdev, 2);
 947                 printf("management ORB failed(%d) ... RESET_START\n", resp);
 948                 sbp_reset_start(sdev);
 949         }
 950 #endif
 951         return;
 952 }
 953
 954 static struct sbp_dev *
 955 sbp_next_dev(struct sbp_target *target, int lun)
 956 {
 957         struct sbp_dev **sdevp;
 958         int i;
 959
 960         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 961             i++, sdevp++)
 962                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 963                         return(*sdevp);
 964         return(NULL);
 965 }
 966
 967 #define SCAN_PRI 1
 968 static void
 969 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 970 {
 971         struct sbp_target *target;
 972         struct sbp_dev *sdev;
 973
 974         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
 975         target = sdev->target;
 976 SBP_DEBUG(0)
 977         sbp_show_sdev_info(sdev, 2);
 978         printf("sbp_cam_scan_lun\n");
 979 END_DEBUG
 980         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 981                 sdev->status = SBP_DEV_ATTACHED;
 982         } else {
 983                 sbp_show_sdev_info(sdev, 2);
 984                 printf("scan failed\n");
 985         }
 986         sdev = sbp_next_dev(target, sdev->lun_id + 1);
 987         if (sdev == NULL) {
 988                 free(ccb, M_SBP);
 989                 return;
 990         }
 991         /* reuse ccb */
 992         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 993         ccb->ccb_h.ccb_sdev_ptr = sdev;
 994         xpt_action(ccb);
 995         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 996         sdev->freeze = 1;
 997 }
 998
 999 static void
1000 sbp_cam_scan_target(void *arg)
1001 {
1002         struct sbp_target *target = (struct sbp_target *)arg;
1003         struct sbp_dev *sdev;
1004         union ccb *ccb;
1005
1006         sdev = sbp_next_dev(target, 0);
1007         if (sdev == NULL) {
1008                 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1009                                                         target->target_id);
1010                 return;
1011         }
1012 SBP_DEBUG(0)
1013         sbp_show_sdev_info(sdev, 2);
1014         printf("sbp_cam_scan_target\n");
1015 END_DEBUG
1016         ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1017         if (ccb == NULL) {
1018                 printf("sbp_cam_scan_target: malloc failed\n");
1019                 return;
1020         }
1021         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1022         ccb->ccb_h.func_code = XPT_SCAN_LUN;
1023         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1024         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1025         ccb->crcn.flags = CAM_FLAG_NONE;
1026         ccb->ccb_h.ccb_sdev_ptr = sdev;
1027
1028         /* The scan is in progress now. */
1029         xpt_action(ccb);
1030         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1031         sdev->freeze = 1;
1032 }
1033
1034 static __inline void
1035 sbp_scan_dev(struct sbp_dev *sdev)
1036 {
1037         sdev->status = SBP_DEV_PROBE;
1038         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1039                         sbp_cam_scan_target, (void *)sdev->target);
1040 }
1041
1042 static void
1043 sbp_do_attach(struct fw_xfer *xfer)
1044 {
1045         struct sbp_dev *sdev;
1046         struct sbp_target *target;
1047         struct sbp_softc *sbp;
1048
1049         sdev = (struct sbp_dev *)xfer->sc;
1050         target = sdev->target;
1051         sbp = target->sbp;
1052 SBP_DEBUG(0)
1053         sbp_show_sdev_info(sdev, 2);
1054         printf("sbp_do_attach\n");
1055 END_DEBUG
1056         sbp_xfer_free(xfer);
1057
1058         if (sdev->path == NULL)
1059                 xpt_create_path(&sdev->path, xpt_periph,
1060                         cam_sim_path(target->sbp->sim),
1061                         target->target_id, sdev->lun_id);
1062
1063         /*
1064          * Let CAM scan the bus if we are in the boot process.
1065          * XXX xpt_scan_bus cannot detect LUN larger than 0
1066          * if LUN 0 doesn't exists.
1067          */
1068         if (sbp_cold > 0) {
1069                 sdev->status = SBP_DEV_ATTACHED;
1070                 return;
1071         }
1072
1073         sbp_scan_dev(sdev);
1074         return;
1075 }
1076
1077 static void
1078 sbp_agent_reset_callback(struct fw_xfer *xfer)
1079 {
1080         struct sbp_dev *sdev;
1081
1082         sdev = (struct sbp_dev *)xfer->sc;
1083 SBP_DEBUG(1)
1084         sbp_show_sdev_info(sdev, 2);
1085         printf("%s\n", __FUNCTION__);
1086 END_DEBUG
1087         if (xfer->resp != 0) {
1088                 sbp_show_sdev_info(sdev, 2);
1089                 printf("%s: resp=%d\n", __FUNCTION__, xfer->resp);
1090         }
1091
1092         sbp_xfer_free(xfer);
1093         if (sdev->path) {
1094                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1095                 sdev->freeze = 0;
1096         }
1097 }
1098
1099 static void
1100 sbp_agent_reset(struct sbp_dev *sdev)
1101 {
1102         struct fw_xfer *xfer;
1103         struct fw_pkt *fp;
1104
1105 SBP_DEBUG(0)
1106         sbp_show_sdev_info(sdev, 2);
1107         printf("sbp_agent_reset\n");
1108 END_DEBUG
1109         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1110         if (xfer == NULL)
1111                 return;
1112         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1113                 xfer->act.hand = sbp_agent_reset_callback;
1114         else
1115                 xfer->act.hand = sbp_do_attach;
1116         fp = &xfer->send.hdr;
1117         fp->mode.wreqq.data = htonl(0xf);
1118         fw_asyreq(xfer->fc, -1, xfer);
1119         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1120 }
1121
1122 static void
1123 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1124 {
1125         struct sbp_dev *sdev;
1126
1127         sdev = (struct sbp_dev *)xfer->sc;
1128 SBP_DEBUG(1)
1129         sbp_show_sdev_info(sdev, 2);
1130         printf("sbp_busy_timeout_callback\n");
1131 END_DEBUG
1132         sbp_xfer_free(xfer);
1133         sbp_agent_reset(sdev);
1134 }
1135
1136 static void
1137 sbp_busy_timeout(struct sbp_dev *sdev)
1138 {
1139         struct fw_pkt *fp;
1140         struct fw_xfer *xfer;
1141 SBP_DEBUG(0)
1142         sbp_show_sdev_info(sdev, 2);
1143         printf("sbp_busy_timeout\n");
1144 END_DEBUG
1145         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1146
1147         xfer->act.hand = sbp_busy_timeout_callback;
1148         fp = &xfer->send.hdr;
1149         fp->mode.wreqq.dest_hi = 0xffff;
1150         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1151         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1152         fw_asyreq(xfer->fc, -1, xfer);
1153 }
1154
1155 static void
1156 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1157 {
1158         struct sbp_dev *sdev;
1159         sdev = (struct sbp_dev *)xfer->sc;
1160
1161 SBP_DEBUG(1)
1162         sbp_show_sdev_info(sdev, 2);
1163         printf("%s\n", __FUNCTION__);
1164 END_DEBUG
1165         if (xfer->resp != 0) {
1166                 /* XXX */
1167                 printf("%s: xfer->resp = %d\n", __FUNCTION__, xfer->resp);
1168         }
1169         sbp_xfer_free(xfer);
1170         sdev->flags &= ~ORB_POINTER_ACTIVE;
1171
1172         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1173                 struct sbp_ocb *ocb;
1174
1175                 sdev->flags &= ~ORB_POINTER_NEED;
1176                 ocb = STAILQ_FIRST(&sdev->ocbs);
1177                 if (ocb != NULL)
1178                         sbp_orb_pointer(sdev, ocb);
1179         }
1180         return;
1181 }
1182
1183 static void
1184 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1185 {
1186         struct fw_xfer *xfer;
1187         struct fw_pkt *fp;
1188 SBP_DEBUG(1)
1189         sbp_show_sdev_info(sdev, 2);
1190         printf("%s: 0x%08x\n", __FUNCTION__, (u_int32_t)ocb->bus_addr);
1191 END_DEBUG
1192
1193         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1194 SBP_DEBUG(0)
1195                 printf("%s: orb pointer active\n", __FUNCTION__);
1196 END_DEBUG
1197                 sdev->flags |= ORB_POINTER_NEED;
1198                 return;
1199         }
1200
1201         sdev->flags |= ORB_POINTER_ACTIVE;
1202         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1203         if (xfer == NULL)
1204                 return;
1205         xfer->act.hand = sbp_orb_pointer_callback;
1206
1207         fp = &xfer->send.hdr;
1208         fp->mode.wreqb.len = 8;
1209         fp->mode.wreqb.extcode = 0;
1210         xfer->send.payload[0] =
1211                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1212         xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1213
1214         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1215                         sbp_xfer_free(xfer);
1216                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1217                         xpt_done(ocb->ccb);
1218         }
1219 }
1220
1221 #if 0
1222 static void
1223 sbp_cmd_callback(struct fw_xfer *xfer)
1224 {
1225 SBP_DEBUG(1)
1226         struct sbp_dev *sdev;
1227         sdev = (struct sbp_dev *)xfer->sc;
1228         sbp_show_sdev_info(sdev, 2);
1229         printf("sbp_cmd_callback\n");
1230 END_DEBUG
1231         if (xfer->resp != 0) {
1232                 /* XXX */
1233                 printf("%s: xfer->resp = %d\n", __FUNCTION__, xfer->resp);
1234         }
1235         sbp_xfer_free(xfer);
1236         return;
1237 }
1238
1239 static void
1240 sbp_doorbell(struct sbp_dev *sdev)
1241 {
1242         struct fw_xfer *xfer;
1243         struct fw_pkt *fp;
1244 SBP_DEBUG(1)
1245         sbp_show_sdev_info(sdev, 2);
1246         printf("sbp_doorbell\n");
1247 END_DEBUG
1248
1249         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1250         if (xfer == NULL)
1251                 return;
1252         xfer->act.hand = sbp_cmd_callback;
1253         fp = (struct fw_pkt *)xfer->send.buf;
1254         fp->mode.wreqq.data = htonl(0xf);
1255         fw_asyreq(xfer->fc, -1, xfer);
1256 }
1257 #endif
1258
1259 static struct fw_xfer *
1260 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1261 {
1262         struct fw_xfer *xfer;
1263         struct fw_pkt *fp;
1264         struct sbp_target *target;
1265         int s, new = 0;
1266
1267         target = sdev->target;
1268         s = splfw();
1269         xfer = STAILQ_FIRST(&target->xferlist);
1270         if (xfer == NULL) {
1271                 if (target->n_xfer > 5 /* XXX */) {
1272                         printf("sbp: no more xfer for this target\n");
1273                         splx(s);
1274                         return(NULL);
1275                 }
1276                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1277                 if(xfer == NULL){
1278                         printf("sbp: fw_xfer_alloc_buf failed\n");
1279                         splx(s);
1280                         return NULL;
1281                 }
1282                 target->n_xfer ++;
1283                 if (debug)
1284                         printf("sbp: alloc %d xfer\n", target->n_xfer);
1285                 new = 1;
1286         } else {
1287                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1288         }
1289         splx(s);
1290
1291         microtime(&xfer->tv);
1292
1293         if (new) {
1294                 xfer->recv.pay_len = 0;
1295                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1296                 xfer->fc = sdev->target->sbp->fd.fc;
1297                 xfer->retry_req = fw_asybusy;
1298         }
1299
1300         if (tcode == FWTCODE_WREQB)
1301                 xfer->send.pay_len = 8;
1302         else
1303                 xfer->send.pay_len = 0;
1304
1305         xfer->sc = (caddr_t)sdev;
1306         fp = &xfer->send.hdr;
1307         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1308         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1309         fp->mode.wreqq.tlrt = 0;
1310         fp->mode.wreqq.tcode = tcode;
1311         fp->mode.wreqq.pri = 0;
1312         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1313
1314         return xfer;
1315
1316 }
1317
1318 static void
1319 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1320 {
1321         struct fw_xfer *xfer;
1322         struct fw_pkt *fp;
1323         struct sbp_ocb *ocb;
1324         struct sbp_target *target;
1325         int s, nid;
1326
1327         target = sdev->target;
1328         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1329
1330         s = splfw();
1331         if (func == ORB_FUN_RUNQUEUE) {
1332                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1333                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1334                         splx(s);
1335                         return;
1336                 }
1337                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1338                 goto start;
1339         }
1340         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1341                 splx(s);
1342                 /* XXX */
1343                 return;
1344         }
1345         ocb->flags = OCB_ACT_MGM;
1346         ocb->sdev = sdev;
1347
1348         bzero((void *)ocb->orb, sizeof(ocb->orb));
1349         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1350         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1351
1352 SBP_DEBUG(0)
1353         sbp_show_sdev_info(sdev, 2);
1354         printf("%s\n", orb_fun_name[(func>>16)&0xf]);
1355 END_DEBUG
1356         switch (func) {
1357         case ORB_FUN_LGI:
1358                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1359                 ocb->orb[2] = htonl(nid << 16);
1360                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1361                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1362                 if (ex_login)
1363                         ocb->orb[4] |= htonl(ORB_EXV);
1364                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1365                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1366                 break;
1367         case ORB_FUN_ATA:
1368                 ocb->orb[0] = htonl((0 << 16) | 0);
1369                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1370                 /* fall through */
1371         case ORB_FUN_RCN:
1372         case ORB_FUN_LGO:
1373         case ORB_FUN_LUR:
1374         case ORB_FUN_RST:
1375         case ORB_FUN_ATS:
1376                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1377                 break;
1378         }
1379
1380         if (target->mgm_ocb_cur != NULL) {
1381                 /* there is a standing ORB */
1382                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1383                 splx(s);
1384                 return;
1385         }
1386 start:
1387         target->mgm_ocb_cur = ocb;
1388         splx(s);
1389
1390         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1391                                 sbp_mgm_timeout, (caddr_t)ocb);
1392         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1393         if(xfer == NULL){
1394                 return;
1395         }
1396         xfer->act.hand = sbp_mgm_callback;
1397
1398         fp = &xfer->send.hdr;
1399         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1400         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1401         fp->mode.wreqb.len = 8;
1402         fp->mode.wreqb.extcode = 0;
1403         xfer->send.payload[0] = htonl(nid << 16);
1404         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1405 SBP_DEBUG(0)
1406         sbp_show_sdev_info(sdev, 2);
1407         printf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1408 END_DEBUG
1409
1410         fw_asyreq(xfer->fc, -1, xfer);
1411 }
1412
1413 static void
1414 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1415 {
1416         struct ccb_scsiio *csio;
1417
1418         csio = &ocb->ccb->csio;
1419         printf("%s:%d:%d XPT_SCSI_IO: "
1420                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1421                 ", flags: 0x%02x, "
1422                 "%db cmd/%db data/%db sense\n",
1423                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1424                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1425                 csio->cdb_io.cdb_bytes[0],
1426                 csio->cdb_io.cdb_bytes[1],
1427                 csio->cdb_io.cdb_bytes[2],
1428                 csio->cdb_io.cdb_bytes[3],
1429                 csio->cdb_io.cdb_bytes[4],
1430                 csio->cdb_io.cdb_bytes[5],
1431                 csio->cdb_io.cdb_bytes[6],
1432                 csio->cdb_io.cdb_bytes[7],
1433                 csio->cdb_io.cdb_bytes[8],
1434                 csio->cdb_io.cdb_bytes[9],
1435                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1436                 csio->cdb_len, csio->dxfer_len,
1437                 csio->sense_len);
1438 }
1439
1440 static void
1441 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1442 {
1443         struct sbp_cmd_status *sbp_cmd_status;
1444         struct scsi_sense_data *sense;
1445
1446         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1447         sense = &ocb->ccb->csio.sense_data;
1448
1449 SBP_DEBUG(0)
1450         sbp_print_scsi_cmd(ocb);
1451         /* XXX need decode status */
1452         sbp_show_sdev_info(ocb->sdev, 2);
1453         printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1454                 sbp_cmd_status->status,
1455                 sbp_cmd_status->sfmt,
1456                 sbp_cmd_status->valid,
1457                 sbp_cmd_status->s_key,
1458                 sbp_cmd_status->s_code,
1459                 sbp_cmd_status->s_qlfr,
1460                 sbp_status->len
1461         );
1462 END_DEBUG
1463
1464         switch (sbp_cmd_status->status) {
1465         case SCSI_STATUS_CHECK_COND:
1466         case SCSI_STATUS_BUSY:
1467         case SCSI_STATUS_CMD_TERMINATED:
1468                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1469                         sense->error_code = SSD_CURRENT_ERROR;
1470                 }else{
1471                         sense->error_code = SSD_DEFERRED_ERROR;
1472                 }
1473                 if(sbp_cmd_status->valid)
1474                         sense->error_code |= SSD_ERRCODE_VALID;
1475                 sense->flags = sbp_cmd_status->s_key;
1476                 if(sbp_cmd_status->mark)
1477                         sense->flags |= SSD_FILEMARK;
1478                 if(sbp_cmd_status->eom)
1479                         sense->flags |= SSD_EOM;
1480                 if(sbp_cmd_status->ill_len)
1481                         sense->flags |= SSD_ILI;
1482
1483                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1484
1485                 if (sbp_status->len <= 1)
1486                         /* XXX not scsi status. shouldn't be happened */
1487                         sense->extra_len = 0;
1488                 else if (sbp_status->len <= 4)
1489                         /* add_sense_code(_qual), info, cmd_spec_info */
1490                         sense->extra_len = 6;
1491                 else
1492                         /* fru, sense_key_spec */
1493                         sense->extra_len = 10;
1494
1495                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1496
1497                 sense->add_sense_code = sbp_cmd_status->s_code;
1498                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1499                 sense->fru = sbp_cmd_status->fru;
1500
1501                 bcopy(&sbp_cmd_status->s_keydep[0],
1502                     &sense->sense_key_spec[0], 3);
1503
1504                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;;
1505                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1506                                                         | CAM_AUTOSNS_VALID;
1507 /*
1508 {
1509                 u_int8_t j, *tmp;
1510                 tmp = sense;
1511                 for( j = 0 ; j < 32 ; j+=8){
1512                         printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1513                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1514                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1515                 }
1516
1517 }
1518 */
1519                 break;
1520         default:
1521                 sbp_show_sdev_info(ocb->sdev, 2);
1522                 printf("sbp_scsi_status: unknown scsi status 0x%x\n",
1523                                                 sbp_cmd_status->status);
1524         }
1525 }
1526
1527 static void
1528 sbp_fix_inq_data(struct sbp_ocb *ocb)
1529 {
1530         union ccb *ccb;
1531         struct sbp_dev *sdev;
1532         struct scsi_inquiry_data *inq;
1533
1534         ccb = ocb->ccb;
1535         sdev = ocb->sdev;
1536
1537         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1538                 return;
1539 SBP_DEBUG(1)
1540         sbp_show_sdev_info(sdev, 2);
1541         printf("sbp_fix_inq_data\n");
1542 END_DEBUG
1543         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1544         switch (SID_TYPE(inq)) {
1545         case T_DIRECT:
1546 #if 0
1547                 /*
1548                  * XXX Convert Direct Access device to RBC.
1549                  * I've never seen FireWire DA devices which support READ_6.
1550                  */
1551                 if (SID_TYPE(inq) == T_DIRECT)
1552                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1553 #endif
1554                 /* fall through */
1555         case T_RBC:
1556                 /* enable tagged queuing */
1557                 if (sbp_tags)
1558                         inq->flags |= SID_CmdQue;
1559                 else
1560                         inq->flags &= ~SID_CmdQue;
1561                 /*
1562                  * Override vendor/product/revision information.
1563                  * Some devices sometimes return strange strings.
1564                  */
1565 #if 1
1566                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1567                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1568                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1569 #endif
1570                 break;
1571         }
1572 }
1573
1574 static void
1575 sbp_recv1(struct fw_xfer *xfer)
1576 {
1577         struct fw_pkt *rfp;
1578 #if NEED_RESPONSE
1579         struct fw_pkt *sfp;
1580 #endif
1581         struct sbp_softc *sbp;
1582         struct sbp_dev *sdev;
1583         struct sbp_ocb *ocb;
1584         struct sbp_login_res *login_res = NULL;
1585         struct sbp_status *sbp_status;
1586         struct sbp_target *target;
1587         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1588         u_int32_t addr;
1589 /*
1590         u_int32_t *ld;
1591         ld = xfer->recv.buf;
1592 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1593                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1594 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1595 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1596 */
1597         sbp = (struct sbp_softc *)xfer->sc;
1598         if (xfer->resp != 0){
1599                 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1600                 goto done0;
1601         }
1602         if (xfer->recv.payload == NULL){
1603                 printf("sbp_recv: xfer->recv.payload == NULL\n");
1604                 goto done0;
1605         }
1606         rfp = &xfer->recv.hdr;
1607         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1608                 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1609                 goto done0;
1610         }
1611         sbp_status = (struct sbp_status *)xfer->recv.payload;
1612         addr = rfp->mode.wreqb.dest_lo;
1613 SBP_DEBUG(2)
1614         printf("received address 0x%x\n", addr);
1615 END_DEBUG
1616         t = SBP_ADDR2TRG(addr);
1617         if (t >= SBP_NUM_TARGETS) {
1618                 device_printf(sbp->fd.dev,
1619                         "sbp_recv1: invalid target %d\n", t);
1620                 goto done0;
1621         }
1622         target = &sbp->targets[t];
1623         l = SBP_ADDR2LUN(addr);
1624         if (l >= target->num_lun || target->luns[l] == NULL) {
1625                 device_printf(sbp->fd.dev,
1626                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1627                 goto done0;
1628         }
1629         sdev = target->luns[l];
1630
1631         ocb = NULL;
1632         switch (sbp_status->src) {
1633         case 0:
1634         case 1:
1635                 /* check mgm_ocb_cur first */
1636                 ocb  = target->mgm_ocb_cur;
1637                 if (ocb != NULL) {
1638                         if (OCB_MATCH(ocb, sbp_status)) {
1639                                 callout_stop(&target->mgm_ocb_timeout);
1640                                 target->mgm_ocb_cur = NULL;
1641                                 break;
1642                         }
1643                 }
1644                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1645                 if (ocb == NULL) {
1646                         sbp_show_sdev_info(sdev, 2);
1647 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1648                         printf("No ocb(%lx) on the queue\n",
1649 #else
1650                         printf("No ocb(%x) on the queue\n",
1651 #endif
1652                                         ntohl(sbp_status->orb_lo));
1653                 }
1654                 break;
1655         case 2:
1656                 /* unsolicit */
1657                 sbp_show_sdev_info(sdev, 2);
1658                 printf("unsolicit status received\n");
1659                 break;
1660         default:
1661                 sbp_show_sdev_info(sdev, 2);
1662                 printf("unknown sbp_status->src\n");
1663         }
1664
1665         status_valid0 = (sbp_status->src < 2
1666                         && sbp_status->resp == ORB_RES_CMPL
1667                         && sbp_status->dead == 0);
1668         status_valid = (status_valid0 && sbp_status->status == 0);
1669
1670         if (!status_valid0 || debug > 2){
1671                 int status;
1672 SBP_DEBUG(0)
1673                 sbp_show_sdev_info(sdev, 2);
1674                 printf("ORB status src:%x resp:%x dead:%x"
1675 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1676                                 " len:%x stat:%x orb:%x%08lx\n",
1677 #else
1678                                 " len:%x stat:%x orb:%x%08x\n",
1679 #endif
1680                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1681                         sbp_status->len, sbp_status->status,
1682                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1683 END_DEBUG
1684                 sbp_show_sdev_info(sdev, 2);
1685                 status = sbp_status->status;
1686                 switch(sbp_status->resp) {
1687                 case 0:
1688                         if (status > MAX_ORB_STATUS0)
1689                                 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1690                         else
1691                                 printf("%s\n", orb_status0[status]);
1692                         break;
1693                 case 1:
1694                         printf("Obj: %s, Error: %s\n",
1695                                 orb_status1_object[(status>>6) & 3],
1696                                 orb_status1_serial_bus_error[status & 0xf]);
1697                         break;
1698                 case 2:
1699                         printf("Illegal request\n");
1700                         break;
1701                 case 3:
1702                         printf("Vendor dependent\n");
1703                         break;
1704                 default:
1705                         printf("unknown respose code %d\n", sbp_status->resp);
1706                 }
1707         }
1708
1709         /* we have to reset the fetch agent if it's dead */
1710         if (sbp_status->dead) {
1711                 if (sdev->path) {
1712                         xpt_freeze_devq(sdev->path, 1);
1713                         sdev->freeze ++;
1714                 }
1715                 reset_agent = 1;
1716         }
1717
1718         if (ocb == NULL)
1719                 goto done;
1720
1721         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1722         case ORB_FMT_NOP:
1723                 break;
1724         case ORB_FMT_VED:
1725                 break;
1726         case ORB_FMT_STD:
1727                 switch(ocb->flags) {
1728                 case OCB_ACT_MGM:
1729                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1730                         reset_agent = 0;
1731                         switch(orb_fun) {
1732                         case ORB_FUN_LGI:
1733                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1734                                 login_res = sdev->login;
1735                                 login_res->len = ntohs(login_res->len);
1736                                 login_res->id = ntohs(login_res->id);
1737                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1738                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1739                                 if (status_valid) {
1740 SBP_DEBUG(0)
1741 sbp_show_sdev_info(sdev, 2);
1742 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));
1743 END_DEBUG
1744                                         sbp_busy_timeout(sdev);
1745                                 } else {
1746                                         /* forgot logout? */
1747                                         sbp_show_sdev_info(sdev, 2);
1748                                         printf("login failed\n");
1749                                         sdev->status = SBP_DEV_RESET;
1750                                 }
1751                                 break;
1752                         case ORB_FUN_RCN:
1753                                 login_res = sdev->login;
1754                                 if (status_valid) {
1755 SBP_DEBUG(0)
1756 sbp_show_sdev_info(sdev, 2);
1757 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1758 END_DEBUG
1759 #if 1
1760                                         if (sdev->status == SBP_DEV_ATTACHED)
1761                                                 sbp_scan_dev(sdev);
1762                                         else
1763                                                 sbp_agent_reset(sdev);
1764 #else
1765                                         sdev->status = SBP_DEV_ATTACHED;
1766                                         sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1767 #endif
1768                                 } else {
1769                                         /* reconnection hold time exceed? */
1770 SBP_DEBUG(0)
1771                                         sbp_show_sdev_info(sdev, 2);
1772                                         printf("reconnect failed\n");
1773 END_DEBUG
1774                                         sbp_login(sdev);
1775                                 }
1776                                 break;
1777                         case ORB_FUN_LGO:
1778                                 sdev->status = SBP_DEV_RESET;
1779                                 break;
1780                         case ORB_FUN_RST:
1781                                 sbp_busy_timeout(sdev);
1782                                 break;
1783                         case ORB_FUN_LUR:
1784                         case ORB_FUN_ATA:
1785                         case ORB_FUN_ATS:
1786                                 sbp_agent_reset(sdev);
1787                                 break;
1788                         default:
1789                                 sbp_show_sdev_info(sdev, 2);
1790                                 printf("unknown function %d\n", orb_fun);
1791                                 break;
1792                         }
1793                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1794                         break;
1795                 case OCB_ACT_CMD:
1796                         sdev->timeout = 0;
1797                         if(ocb->ccb != NULL){
1798                                 union ccb *ccb;
1799 /*
1800                                 u_int32_t *ld;
1801                                 ld = ocb->ccb->csio.data_ptr;
1802                                 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1803                                         printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1804                                 else
1805                                         printf("ptr NULL\n");
1806 printf("len %d\n", sbp_status->len);
1807 */
1808                                 ccb = ocb->ccb;
1809                                 if(sbp_status->len > 1){
1810                                         sbp_scsi_status(sbp_status, ocb);
1811                                 }else{
1812                                         if(sbp_status->resp != ORB_RES_CMPL){
1813                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1814                                         }else{
1815                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1816                                         }
1817                                 }
1818                                 /* fix up inq data */
1819                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1820                                         sbp_fix_inq_data(ocb);
1821                                 xpt_done(ccb);
1822                         }
1823                         break;
1824                 default:
1825                         break;
1826                 }
1827         }
1828
1829         sbp_free_ocb(sdev, ocb);
1830 done:
1831         if (reset_agent)
1832                 sbp_agent_reset(sdev);
1833
1834 done0:
1835         xfer->recv.pay_len = SBP_RECV_LEN;
1836 /* The received packet is usually small enough to be stored within
1837  * the buffer. In that case, the controller return ack_complete and
1838  * no respose is necessary.
1839  *
1840  * XXX fwohci.c and firewire.c should inform event_code such as
1841  * ack_complete or ack_pending to upper driver.
1842  */
1843 #if NEED_RESPONSE
1844         xfer->send.off = 0;
1845         sfp = (struct fw_pkt *)xfer->send.buf;
1846         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1847         xfer->dst = sfp->mode.wres.dst;
1848         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1849         xfer->act.hand = sbp_loginres_callback;
1850         xfer->retry_req = fw_asybusy;
1851
1852         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1853         sfp->mode.wres.tcode = FWTCODE_WRES;
1854         sfp->mode.wres.rtcode = 0;
1855         sfp->mode.wres.pri = 0;
1856
1857         fw_asyreq(xfer->fc, -1, xfer);
1858 #else
1859         /* recycle */
1860         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1861 #endif
1862
1863         return;
1864
1865 }
1866
1867 static void
1868 sbp_recv(struct fw_xfer *xfer)
1869 {
1870         int s;
1871
1872         s = splcam();
1873         sbp_recv1(xfer);
1874         splx(s);
1875 }
1876 /*
1877  * sbp_attach()
1878  */
1879 static int
1880 sbp_attach(device_t dev)
1881 {
1882         struct sbp_softc *sbp;
1883         struct cam_devq *devq;
1884         struct fw_xfer *xfer;
1885         int i, s, error;
1886
1887 SBP_DEBUG(0)
1888         printf("sbp_attach (cold=%d)\n", cold);
1889 END_DEBUG
1890
1891         if (cold)
1892                 sbp_cold ++;
1893         sbp = ((struct sbp_softc *)device_get_softc(dev));
1894         bzero(sbp, sizeof(struct sbp_softc));
1895         sbp->fd.dev = dev;
1896         sbp->fd.fc = device_get_ivars(dev);
1897
1898         if (max_speed < 0)
1899                 max_speed = sbp->fd.fc->speed;
1900
1901         error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1902                                 /* XXX shoud be 4 for sane backend? */
1903                                 /*alignment*/1,
1904                                 /*boundary*/0,
1905                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1906                                 /*highaddr*/BUS_SPACE_MAXADDR,
1907                                 /*filter*/NULL, /*filterarg*/NULL,
1908                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1909                                 /*maxsegsz*/SBP_SEG_MAX,
1910                                 /*flags*/BUS_DMA_ALLOCNOW,
1911 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1912                                 /*lockfunc*/busdma_lock_mutex,
1913                                 /*lockarg*/&Giant,
1914 #endif
1915                                 &sbp->dmat);
1916         if (error != 0) {
1917                 printf("sbp_attach: Could not allocate DMA tag "
1918                         "- error %d\n", error);
1919                         return (ENOMEM);
1920         }
1921
1922         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1923         if (devq == NULL)
1924                 return (ENXIO);
1925
1926         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1927                 sbp->targets[i].fwdev = NULL;
1928                 sbp->targets[i].luns = NULL;
1929         }
1930
1931         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1932                                  device_get_unit(dev),
1933                                  /*untagged*/ 1,
1934                                  /*tagged*/ SBP_QUEUE_LEN - 1,
1935                                  devq);
1936
1937         if (sbp->sim == NULL) {
1938                 cam_simq_free(devq);
1939                 return (ENXIO);
1940         }
1941
1942
1943         if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1944                 goto fail;
1945
1946         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1947             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1948                 xpt_bus_deregister(cam_sim_path(sbp->sim));
1949                 goto fail;
1950         }
1951
1952         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1953         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1954         sbp->fwb.end = sbp->fwb.start + 0xffff;
1955         sbp->fwb.act_type = FWACT_XFER;
1956         /* pre-allocate xfer */
1957         STAILQ_INIT(&sbp->fwb.xferlist);
1958         for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1959                 xfer = fw_xfer_alloc_buf(M_SBP,
1960                         /* send */0,
1961                         /* recv */SBP_RECV_LEN);
1962                 xfer->act.hand = sbp_recv;
1963 #if NEED_RESPONSE
1964                 xfer->fc = sbp->fd.fc;
1965 #endif
1966                 xfer->sc = (caddr_t)sbp;
1967                 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1968         }
1969         fw_bindadd(sbp->fd.fc, &sbp->fwb);
1970
1971         sbp->fd.post_busreset = sbp_post_busreset;
1972         sbp->fd.post_explore = sbp_post_explore;
1973
1974         if (sbp->fd.fc->status != -1) {
1975                 s = splfw();
1976                 sbp_post_busreset((void *)sbp);
1977                 sbp_post_explore((void *)sbp);
1978                 splx(s);
1979         }
1980         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1981
1982         return (0);
1983 fail:
1984         cam_sim_free(sbp->sim, /*free_devq*/TRUE);
1985         return (ENXIO);
1986 }
1987
1988 static int
1989 sbp_logout_all(struct sbp_softc *sbp)
1990 {
1991         struct sbp_target *target;
1992         struct sbp_dev *sdev;
1993         int i, j;
1994
1995 SBP_DEBUG(0)
1996         printf("sbp_logout_all\n");
1997 END_DEBUG
1998         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1999                 target = &sbp->targets[i];
2000                 if (target->luns == NULL)
2001                         continue;
2002                 for (j = 0; j < target->num_lun; j++) {
2003                         sdev = target->luns[j];
2004                         if (sdev == NULL)
2005                                 continue;
2006                         callout_stop(&sdev->login_callout);
2007                         if (sdev->status >= SBP_DEV_TOATTACH &&
2008                                         sdev->status <= SBP_DEV_ATTACHED)
2009                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2010                 }
2011         }
2012
2013         return 0;
2014 }
2015
2016 static int
2017 sbp_shutdown(device_t dev)
2018 {
2019         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2020
2021         sbp_logout_all(sbp);
2022         return (0);
2023 }
2024
2025 static void
2026 sbp_free_sdev(struct sbp_dev *sdev)
2027 {
2028         int i;
2029
2030         if (sdev == NULL)
2031                 return;
2032         for (i = 0; i < SBP_QUEUE_LEN; i++)
2033                 bus_dmamap_destroy(sdev->target->sbp->dmat,
2034                     sdev->ocb[i].dmamap);
2035         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2036         free(sdev, M_SBP);
2037 }
2038
2039 static void
2040 sbp_free_target(struct sbp_target *target)
2041 {
2042         struct sbp_softc *sbp;
2043         struct fw_xfer *xfer, *next;
2044         int i;
2045
2046         if (target->luns == NULL)
2047                 return;
2048         callout_stop(&target->mgm_ocb_timeout);
2049         sbp = target->sbp;
2050         for (i = 0; i < target->num_lun; i++)
2051                 sbp_free_sdev(target->luns[i]);
2052
2053         for (xfer = STAILQ_FIRST(&target->xferlist);
2054                         xfer != NULL; xfer = next) {
2055                 next = STAILQ_NEXT(xfer, link);
2056                 fw_xfer_free_buf(xfer);
2057         }
2058         STAILQ_INIT(&target->xferlist);
2059         free(target->luns, M_SBP);
2060         target->num_lun = 0;;
2061         target->luns = NULL;
2062         target->fwdev = NULL;
2063 }
2064
2065 static int
2066 sbp_detach(device_t dev)
2067 {
2068         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2069         struct firewire_comm *fc = sbp->fd.fc;
2070         struct fw_xfer *xfer, *next;
2071         int i;
2072
2073 SBP_DEBUG(0)
2074         printf("sbp_detach\n");
2075 END_DEBUG
2076
2077         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2078                 sbp_cam_detach_target(&sbp->targets[i]);
2079         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2080         xpt_free_path(sbp->path);
2081         xpt_bus_deregister(cam_sim_path(sbp->sim));
2082         cam_sim_free(sbp->sim, /*free_devq*/ TRUE),
2083
2084         sbp_logout_all(sbp);
2085
2086         /* XXX wait for logout completion */
2087         tsleep(&i, FWPRI, "sbpdtc", hz/2);
2088
2089         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2090                 sbp_free_target(&sbp->targets[i]);
2091
2092         for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2093                                 xfer != NULL; xfer = next) {
2094                 next = STAILQ_NEXT(xfer, link);
2095                 fw_xfer_free_buf(xfer);
2096         }
2097         STAILQ_INIT(&sbp->fwb.xferlist);
2098         fw_bindremove(fc, &sbp->fwb);
2099
2100         bus_dma_tag_destroy(sbp->dmat);
2101
2102         return (0);
2103 }
2104
2105 static void
2106 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2107 {
2108         if (sdev == NULL)
2109                 return;
2110         if (sdev->status == SBP_DEV_DEAD)
2111                 return;
2112         if (sdev->status == SBP_DEV_RESET)
2113                 return;
2114         if (sdev->path) {
2115                 xpt_release_devq(sdev->path,
2116                                  sdev->freeze, TRUE);
2117                 sdev->freeze = 0;
2118                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2119                 xpt_free_path(sdev->path);
2120                 sdev->path = NULL;
2121         }
2122         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2123 }
2124
2125 static void
2126 sbp_cam_detach_target(struct sbp_target *target)
2127 {
2128         int i;
2129
2130         if (target->luns != NULL) {
2131 SBP_DEBUG(0)
2132                 printf("sbp_detach_target %d\n", target->target_id);
2133 END_DEBUG
2134                 callout_stop(&target->scan_callout);
2135                 for (i = 0; i < target->num_lun; i++)
2136                         sbp_cam_detach_sdev(target->luns[i]);
2137         }
2138 }
2139
2140 static void
2141 sbp_target_reset(struct sbp_dev *sdev, int method)
2142 {
2143         int i;
2144         struct sbp_target *target = sdev->target;
2145         struct sbp_dev *tsdev;
2146
2147         for (i = 0; i < target->num_lun; i++) {
2148                 tsdev = target->luns[i];
2149                 if (tsdev == NULL)
2150                         continue;
2151                 if (tsdev->status == SBP_DEV_DEAD)
2152                         continue;
2153                 if (tsdev->status == SBP_DEV_RESET)
2154                         continue;
2155                 xpt_freeze_devq(tsdev->path, 1);
2156                 tsdev->freeze ++;
2157                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2158                 if (method == 2)
2159                         tsdev->status = SBP_DEV_LOGIN;
2160         }
2161         switch(method) {
2162         case 1:
2163                 printf("target reset\n");
2164                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2165                 break;
2166         case 2:
2167                 printf("reset start\n");
2168                 sbp_reset_start(sdev);
2169                 break;
2170         }
2171
2172 }
2173
2174 static void
2175 sbp_mgm_timeout(void *arg)
2176 {
2177         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2178         struct sbp_dev *sdev = ocb->sdev;
2179         struct sbp_target *target = sdev->target;
2180
2181         sbp_show_sdev_info(sdev, 2);
2182         printf("request timeout(mgm orb:0x%08x) ... ",
2183             (u_int32_t)ocb->bus_addr);
2184         target->mgm_ocb_cur = NULL;
2185         sbp_free_ocb(sdev, ocb);
2186 #if 0
2187         /* XXX */
2188         printf("run next request\n");
2189         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2190 #endif
2191 #if 1
2192         printf("reset start\n");
2193         sbp_reset_start(sdev);
2194 #endif
2195 }
2196
2197 static void
2198 sbp_timeout(void *arg)
2199 {
2200         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2201         struct sbp_dev *sdev = ocb->sdev;
2202
2203         sbp_show_sdev_info(sdev, 2);
2204         printf("request timeout(cmd orb:0x%08x) ... ",
2205             (u_int32_t)ocb->bus_addr);
2206
2207         sdev->timeout ++;
2208         switch(sdev->timeout) {
2209         case 1:
2210                 printf("agent reset\n");
2211                 xpt_freeze_devq(sdev->path, 1);
2212                 sdev->freeze ++;
2213                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2214                 sbp_agent_reset(sdev);
2215                 break;
2216         case 2:
2217         case 3:
2218                 sbp_target_reset(sdev, sdev->timeout - 1);
2219                 break;
2220 #if 0
2221         default:
2222                 /* XXX give up */
2223                 sbp_cam_detach_target(target);
2224                 if (target->luns != NULL)
2225                         free(target->luns, M_SBP);
2226                 target->num_lun = 0;;
2227                 target->luns = NULL;
2228                 target->fwdev = NULL;
2229 #endif
2230         }
2231 }
2232
2233 static void
2234 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2235 {
2236
2237         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2238         struct sbp_target *target = NULL;
2239         struct sbp_dev *sdev = NULL;
2240
2241         /* target:lun -> sdev mapping */
2242         if (sbp != NULL
2243                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2244                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2245                 target = &sbp->targets[ccb->ccb_h.target_id];
2246                 if (target->fwdev != NULL
2247                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2248                                 && ccb->ccb_h.target_lun < target->num_lun) {
2249                         sdev = target->luns[ccb->ccb_h.target_lun];
2250                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2251                                 sdev->status != SBP_DEV_PROBE)
2252                                 sdev = NULL;
2253                 }
2254         }
2255
2256 SBP_DEBUG(1)
2257         if (sdev == NULL)
2258                 printf("invalid target %d lun %d\n",
2259                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2260 END_DEBUG
2261
2262         switch (ccb->ccb_h.func_code) {
2263         case XPT_SCSI_IO:
2264         case XPT_RESET_DEV:
2265         case XPT_GET_TRAN_SETTINGS:
2266         case XPT_SET_TRAN_SETTINGS:
2267         case XPT_CALC_GEOMETRY:
2268                 if (sdev == NULL) {
2269 SBP_DEBUG(1)
2270                         printf("%s:%d:%d:func_code 0x%04x: "
2271                                 "Invalid target (target needed)\n",
2272                                 device_get_nameunit(sbp->fd.dev),
2273                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2274                                 ccb->ccb_h.func_code);
2275 END_DEBUG
2276
2277                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2278                         xpt_done(ccb);
2279                         return;
2280                 }
2281                 break;
2282         case XPT_PATH_INQ:
2283         case XPT_NOOP:
2284                 /* The opcodes sometimes aimed at a target (sc is valid),
2285                  * sometimes aimed at the SIM (sc is invalid and target is
2286                  * CAM_TARGET_WILDCARD)
2287                  */
2288                 if (sbp == NULL &&
2289                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2290 SBP_DEBUG(0)
2291                         printf("%s:%d:%d func_code 0x%04x: "
2292                                 "Invalid target (no wildcard)\n",
2293                                 device_get_nameunit(sbp->fd.dev),
2294                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2295                                 ccb->ccb_h.func_code);
2296 END_DEBUG
2297                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2298                         xpt_done(ccb);
2299                         return;
2300                 }
2301                 break;
2302         default:
2303                 /* XXX Hm, we should check the input parameters */
2304                 break;
2305         }
2306
2307         switch (ccb->ccb_h.func_code) {
2308         case XPT_SCSI_IO:
2309         {
2310                 struct ccb_scsiio *csio;
2311                 struct sbp_ocb *ocb;
2312                 int speed;
2313                 void *cdb;
2314
2315                 csio = &ccb->csio;
2316
2317 SBP_DEBUG(2)
2318                 printf("%s:%d:%d XPT_SCSI_IO: "
2319                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2320                         ", flags: 0x%02x, "
2321                         "%db cmd/%db data/%db sense\n",
2322                         device_get_nameunit(sbp->fd.dev),
2323                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2324                         csio->cdb_io.cdb_bytes[0],
2325                         csio->cdb_io.cdb_bytes[1],
2326                         csio->cdb_io.cdb_bytes[2],
2327                         csio->cdb_io.cdb_bytes[3],
2328                         csio->cdb_io.cdb_bytes[4],
2329                         csio->cdb_io.cdb_bytes[5],
2330                         csio->cdb_io.cdb_bytes[6],
2331                         csio->cdb_io.cdb_bytes[7],
2332                         csio->cdb_io.cdb_bytes[8],
2333                         csio->cdb_io.cdb_bytes[9],
2334                         ccb->ccb_h.flags & CAM_DIR_MASK,
2335                         csio->cdb_len, csio->dxfer_len,
2336                         csio->sense_len);
2337 END_DEBUG
2338                 if(sdev == NULL){
2339                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2340                         xpt_done(ccb);
2341                         return;
2342                 }
2343 #if 0
2344                 /* if we are in probe stage, pass only probe commands */
2345                 if (sdev->status == SBP_DEV_PROBE) {
2346                         char *name;
2347                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2348                         printf("probe stage, periph name: %s\n", name);
2349                         if (strcmp(name, "probe") != 0) {
2350                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2351                                 xpt_done(ccb);
2352                                 return;
2353                         }
2354                 }
2355 #endif
2356                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2357                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2358                         xpt_done(ccb);
2359                         return;
2360                 }
2361
2362                 ocb->flags = OCB_ACT_CMD;
2363                 ocb->sdev = sdev;
2364                 ocb->ccb = ccb;
2365                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2366                 ocb->orb[0] = htonl(1 << 31);
2367                 ocb->orb[1] = 0;
2368                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2369                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2370                 speed = min(target->fwdev->speed, max_speed);
2371                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2372                                                 | ORB_CMD_MAXP(speed + 7));
2373                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2374                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2375                 }
2376
2377                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2378                         printf("sbp: CAM_SCATTER_VALID\n");
2379                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2380                         printf("sbp: CAM_DATA_PHYS\n");
2381
2382                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2383                         cdb = (void *)csio->cdb_io.cdb_ptr;
2384                 else
2385                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2386                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2387 /*
2388 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2389 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2390 */
2391                 if (ccb->csio.dxfer_len > 0) {
2392                         int s, error;
2393
2394                         s = splsoftvm();
2395                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2396                                         /*dma map*/ocb->dmamap,
2397                                         ccb->csio.data_ptr,
2398                                         ccb->csio.dxfer_len,
2399                                         sbp_execute_ocb,
2400                                         ocb,
2401                                         /*flags*/0);
2402                         splx(s);
2403                         if (error)
2404                                 printf("sbp: bus_dmamap_load error %d\n", error);
2405                 } else
2406                         sbp_execute_ocb(ocb, NULL, 0, 0);
2407                 break;
2408         }
2409         case XPT_CALC_GEOMETRY:
2410         {
2411                 struct ccb_calc_geometry *ccg;
2412 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2413                 u_int32_t size_mb;
2414                 u_int32_t secs_per_cylinder;
2415                 int extended = 1;
2416 #endif
2417
2418                 ccg = &ccb->ccg;
2419                 if (ccg->block_size == 0) {
2420                         printf("sbp_action1: block_size is 0.\n");
2421                         ccb->ccb_h.status = CAM_REQ_INVALID;
2422                         xpt_done(ccb);
2423                         break;
2424                 }
2425 SBP_DEBUG(1)
2426                 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2427 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2428                         "Volume size = %d\n",
2429 #else
2430                         "Volume size = %jd\n",
2431 #endif
2432                         device_get_nameunit(sbp->fd.dev),
2433                         cam_sim_path(sbp->sim),
2434                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2435 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2436                         (uintmax_t)
2437 #endif
2438                                 ccg->volume_size);
2439 END_DEBUG
2440
2441 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2442                 size_mb = ccg->volume_size
2443                         / ((1024L * 1024L) / ccg->block_size);
2444
2445                 if (size_mb > 1024 && extended) {
2446                         ccg->heads = 255;
2447                         ccg->secs_per_track = 63;
2448                 } else {
2449                         ccg->heads = 64;
2450                         ccg->secs_per_track = 32;
2451                 }
2452                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2453                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2454                 ccb->ccb_h.status = CAM_REQ_CMP;
2455 #else
2456                 cam_calc_geometry(ccg, /*extended*/1);
2457 #endif
2458                 xpt_done(ccb);
2459                 break;
2460         }
2461         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
2462         {
2463
2464 SBP_DEBUG(1)
2465                 printf("%s:%d:XPT_RESET_BUS: \n",
2466                         device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2467 END_DEBUG
2468
2469                 ccb->ccb_h.status = CAM_REQ_INVALID;
2470                 xpt_done(ccb);
2471                 break;
2472         }
2473         case XPT_PATH_INQ:              /* Path routing inquiry */
2474         {
2475                 struct ccb_pathinq *cpi = &ccb->cpi;
2476
2477 SBP_DEBUG(1)
2478                 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2479                         device_get_nameunit(sbp->fd.dev),
2480                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2481 END_DEBUG
2482                 cpi->version_num = 1; /* XXX??? */
2483                 cpi->hba_inquiry = PI_TAG_ABLE;
2484                 cpi->target_sprt = 0;
2485                 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2486                 cpi->hba_eng_cnt = 0;
2487                 cpi->max_target = SBP_NUM_TARGETS - 1;
2488                 cpi->max_lun = SBP_NUM_LUNS - 1;
2489                 cpi->initiator_id = SBP_INITIATOR;
2490                 cpi->bus_id = sim->bus_id;
2491                 cpi->base_transfer_speed = 400 * 1000 / 8;
2492                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2493                 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2494                 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2495                 cpi->unit_number = sim->unit_number;
2496
2497                 cpi->ccb_h.status = CAM_REQ_CMP;
2498                 xpt_done(ccb);
2499                 break;
2500         }
2501         case XPT_GET_TRAN_SETTINGS:
2502         {
2503                 struct ccb_trans_settings *cts = &ccb->cts;
2504 SBP_DEBUG(1)
2505                 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2506                         device_get_nameunit(sbp->fd.dev),
2507                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2508 END_DEBUG
2509                 /* Enable disconnect and tagged queuing */
2510                 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
2511                 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB;
2512
2513                 cts->ccb_h.status = CAM_REQ_CMP;
2514                 xpt_done(ccb);
2515                 break;
2516         }
2517         case XPT_ABORT:
2518                 ccb->ccb_h.status = CAM_UA_ABORT;
2519                 xpt_done(ccb);
2520                 break;
2521         case XPT_SET_TRAN_SETTINGS:
2522                 /* XXX */
2523         default:
2524                 ccb->ccb_h.status = CAM_REQ_INVALID;
2525                 xpt_done(ccb);
2526                 break;
2527         }
2528         return;
2529 }
2530
2531 static void
2532 sbp_action(struct cam_sim *sim, union ccb *ccb)
2533 {
2534         int s;
2535
2536         s = splfw();
2537         sbp_action1(sim, ccb);
2538         splx(s);
2539 }
2540
2541 static void
2542 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2543 {
2544         int i;
2545         struct sbp_ocb *ocb;
2546         struct sbp_ocb *prev;
2547         bus_dma_segment_t *s;
2548
2549         if (error)
2550                 printf("sbp_execute_ocb: error=%d\n", error);
2551
2552         ocb = (struct sbp_ocb *)arg;
2553
2554 SBP_DEBUG(2)
2555         printf("sbp_execute_ocb: seg %d", seg);
2556         for (i = 0; i < seg; i++)
2557 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2558                 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2559 #else
2560                 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2561                                         (uintmax_t)segments[i].ds_len);
2562 #endif
2563         printf("\n");
2564 END_DEBUG
2565
2566         if (seg == 1) {
2567                 /* direct pointer */
2568                 s = &segments[0];
2569                 if (s->ds_len > SBP_SEG_MAX)
2570                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2571                 ocb->orb[3] = htonl(s->ds_addr);
2572                 ocb->orb[4] |= htonl(s->ds_len);
2573         } else if(seg > 1) {
2574                 /* page table */
2575                 for (i = 0; i < seg; i++) {
2576                         s = &segments[i];
2577 SBP_DEBUG(0)
2578                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2579                         if (s->ds_len < 16)
2580                                 printf("sbp_execute_ocb: warning, "
2581 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2582                                         "segment length(%d) is less than 16."
2583 #else
2584                                         "segment length(%zd) is less than 16."
2585 #endif
2586                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2587 END_DEBUG
2588                         if (s->ds_len > SBP_SEG_MAX)
2589                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2590                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2591                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2592                 }
2593                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2594         }
2595
2596         if (seg > 0)
2597                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2598                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2599                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2600         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2601         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2602         if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2603                 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2604                 sbp_orb_pointer(ocb->sdev, ocb);
2605         }
2606 }
2607
2608 static void
2609 sbp_poll(struct cam_sim *sim)
2610 {
2611         struct sbp_softc *sbp;
2612         struct firewire_comm *fc;
2613
2614         sbp = (struct sbp_softc *)sim->softc;
2615         fc = sbp->fd.fc;
2616
2617         fc->poll(fc, 0, -1);
2618
2619         return;
2620 }
2621
2622 static struct sbp_ocb *
2623 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2624 {
2625         struct sbp_ocb *ocb;
2626         struct sbp_ocb *next;
2627         int s = splfw(), order = 0;
2628         int flags;
2629
2630 SBP_DEBUG(1)
2631         sbp_show_sdev_info(sdev, 2);
2632 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2633         printf("%s: 0x%08lx src %d\n",
2634 #else
2635         printf("%s: 0x%08x src %d\n",
2636 #endif
2637             __FUNCTION__, ntohl(sbp_status->orb_lo), sbp_status->src);
2638 END_DEBUG
2639         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2640                 next = STAILQ_NEXT(ocb, ocb);
2641                 flags = ocb->flags;
2642                 if (OCB_MATCH(ocb, sbp_status)) {
2643                         /* found */
2644                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2645                         if (ocb->ccb != NULL)
2646                                 untimeout(sbp_timeout, (caddr_t)ocb,
2647                                                 ocb->ccb->ccb_h.timeout_ch);
2648                         if (ntohl(ocb->orb[4]) & 0xffff) {
2649                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2650                                         ocb->dmamap,
2651                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2652                                         BUS_DMASYNC_POSTREAD :
2653                                         BUS_DMASYNC_POSTWRITE);
2654                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2655                                         ocb->dmamap);
2656                         }
2657                         if (sbp_status->src == SRC_NO_NEXT) {
2658                                 if (next != NULL)
2659                                         sbp_orb_pointer(sdev, next);
2660                                 else if (order > 0) {
2661                                         /*
2662                                          * Unordered execution
2663                                          * We need to send pointer for
2664                                          * next ORB
2665                                          */
2666                                         sdev->flags |= ORB_LINK_DEAD;
2667                                 }
2668                         }
2669                         break;
2670                 } else
2671                         order ++;
2672         }
2673         splx(s);
2674 SBP_DEBUG(0)
2675         if (ocb && order > 0) {
2676                 sbp_show_sdev_info(sdev, 2);
2677                 printf("unordered execution order:%d\n", order);
2678         }
2679 END_DEBUG
2680         return (ocb);
2681 }
2682
2683 static struct sbp_ocb *
2684 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2685 {
2686         int s = splfw();
2687         struct sbp_ocb *prev;
2688
2689 SBP_DEBUG(1)
2690         sbp_show_sdev_info(sdev, 2);
2691 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2692         printf("%s: 0x%08x\n", __FUNCTION__, ocb->bus_addr);
2693 #else
2694         printf("%s: 0x%08jx\n", __FUNCTION__, (uintmax_t)ocb->bus_addr);
2695 #endif
2696 END_DEBUG
2697         prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2698         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2699
2700         if (ocb->ccb != NULL)
2701                 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2702                                         (ocb->ccb->ccb_h.timeout * hz) / 1000);
2703
2704         if (prev != NULL) {
2705 SBP_DEBUG(2)
2706 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2707                 printf("linking chain 0x%x -> 0x%x\n",
2708                     prev->bus_addr, ocb->bus_addr);
2709 #else
2710                 printf("linking chain 0x%jx -> 0x%jx\n",
2711                     (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2712 #endif
2713 END_DEBUG
2714                 prev->orb[1] = htonl(ocb->bus_addr);
2715                 prev->orb[0] = 0;
2716         }
2717         splx(s);
2718
2719         return prev;
2720 }
2721
2722 static struct sbp_ocb *
2723 sbp_get_ocb(struct sbp_dev *sdev)
2724 {
2725         struct sbp_ocb *ocb;
2726         int s = splfw();
2727         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2728         if (ocb == NULL) {
2729                 printf("ocb shortage!!!\n");
2730                 return NULL;
2731         }
2732         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2733         splx(s);
2734         ocb->ccb = NULL;
2735         return (ocb);
2736 }
2737
2738 static void
2739 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2740 {
2741         ocb->flags = 0;
2742         ocb->ccb = NULL;
2743         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2744 }
2745
2746 static void
2747 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2748 {
2749         struct sbp_dev *sdev;
2750
2751         sdev = ocb->sdev;
2752 SBP_DEBUG(0)
2753         sbp_show_sdev_info(sdev, 2);
2754 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2755         printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2756 #else
2757         printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2758 #endif
2759 END_DEBUG
2760 SBP_DEBUG(1)
2761         if (ocb->ccb != NULL)
2762                 sbp_print_scsi_cmd(ocb);
2763 END_DEBUG
2764         if (ntohl(ocb->orb[4]) & 0xffff) {
2765                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2766                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2767                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2768                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2769         }
2770         if (ocb->ccb != NULL) {
2771                 untimeout(sbp_timeout, (caddr_t)ocb,
2772                                         ocb->ccb->ccb_h.timeout_ch);
2773                 ocb->ccb->ccb_h.status = status;
2774                 xpt_done(ocb->ccb);
2775         }
2776         sbp_free_ocb(sdev, ocb);
2777 }
2778
2779 static void
2780 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2781 {
2782         int s;
2783         struct sbp_ocb *ocb, *next;
2784         STAILQ_HEAD(, sbp_ocb) temp;
2785
2786         s = splfw();
2787
2788         bcopy(&sdev->ocbs, &temp, sizeof(temp));
2789         STAILQ_INIT(&sdev->ocbs);
2790         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2791                 next = STAILQ_NEXT(ocb, ocb);
2792                 sbp_abort_ocb(ocb, status);
2793         }
2794
2795         splx(s);
2796 }
2797
2798 static devclass_t sbp_devclass;
2799
2800 static device_method_t sbp_methods[] = {
2801         /* device interface */
2802         DEVMETHOD(device_identify,      sbp_identify),
2803         DEVMETHOD(device_probe,         sbp_probe),
2804         DEVMETHOD(device_attach,        sbp_attach),
2805         DEVMETHOD(device_detach,        sbp_detach),
2806         DEVMETHOD(device_shutdown,      sbp_shutdown),
2807
2808         { 0, 0 }
2809 };
2810
2811 static driver_t sbp_driver = {
2812         "sbp",
2813         sbp_methods,
2814         sizeof(struct sbp_softc),
2815 };
2816
2817 DECLARE_DUMMY_MODULE(sbp);
2818 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2819 MODULE_VERSION(sbp, 1);
2820 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2821 MODULE_DEPEND(sbp, cam, 1, 1, 1);