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 1.14 2005/06/02 20:40:42 dillon Exp $
  36  *
  37  */
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/conf.h>
  42 #include <sys/module.h>
  43 #include <sys/bus.h>
  44 #include <sys/kernel.h>
  45 #include <sys/sysctl.h>
  46 #include <machine/bus.h>
  47 #include <sys/malloc.h>
  48 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
  49 #include <sys/lock.h>
  50 #include <sys/mutex.h>
  51 #endif
  52
  53 #if defined(__DragonFly__) || __FreeBSD_version < 500106
  54 #include <sys/devicestat.h>     /* for struct devstat */
  55 #endif
  56 #include <sys/thread2.h>
  57
  58 #ifdef __DragonFly__
  59 #include <bus/cam/cam.h>
  60 #include <bus/cam/cam_ccb.h>
  61 #include <bus/cam/cam_sim.h>
  62 #include <bus/cam/cam_xpt_sim.h>
  63 #include <bus/cam/cam_debug.h>
  64 #include <bus/cam/cam_periph.h>
  65 #include <bus/cam/scsi/scsi_all.h>
  66
  67 #include <bus/firewire/firewire.h>
  68 #include <bus/firewire/firewirereg.h>
  69 #include <bus/firewire/fwdma.h>
  70 #include <bus/firewire/iec13213.h>
  71 #include "sbp.h"
  72 #else
  73 #include <cam/cam.h>
  74 #include <cam/cam_ccb.h>
  75 #include <cam/cam_sim.h>
  76 #include <cam/cam_xpt_sim.h>
  77 #include <cam/cam_debug.h>
  78 #include <cam/cam_periph.h>
  79 #include <cam/scsi/scsi_all.h>
  80 #endif
  81
  82 #define ccb_sdev_ptr    spriv_ptr0
  83 #define ccb_sbp_ptr     spriv_ptr1
  84
  85 #define SBP_NUM_TARGETS 8 /* MAX 64 */
  86 /*
  87  * Scan_bus doesn't work for more than 8 LUNs
  88  * because of CAM_SCSI2_MAXLUN in cam_xpt.c
  89  */
  90 #define SBP_NUM_LUNS 64
  91 #define SBP_DMA_SIZE PAGE_SIZE
  92 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
  93 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
  94 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
  95
  96 /*
  97  * STATUS FIFO addressing
  98  *   bit
  99  * -----------------------
 100  *  0- 1( 2): 0 (alingment)
 101  *  2- 7( 6): target
 102  *  8-15( 8): lun
 103  * 16-31( 8): reserved
 104  * 32-47(16): SBP_BIND_HI
 105  * 48-64(16): bus_id, node_id
 106  */
 107 #define SBP_BIND_HI 0x1
 108 #define SBP_DEV2ADDR(t, l) \
 109         (((u_int64_t)SBP_BIND_HI << 32) \
 110         | (((l) & 0xff) << 8) \
 111         | (((t) & 0x3f) << 2))
 112 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
 113 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
 114 #define SBP_INITIATOR 7
 115
 116 static char *orb_fun_name[] = {
 117         ORB_FUN_NAMES
 118 };
 119
 120 static int debug = 0;
 121 static int auto_login = 1;
 122 static int max_speed = -1;
 123 static int sbp_cold = 1;
 124 static int ex_login = 1;
 125 static int login_delay = 1000;  /* msec */
 126 static int scan_delay = 500;    /* msec */
 127 static int sbp_tags = 0;
 128
 129 SYSCTL_DECL(_hw_firewire);
 130 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 131 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 132         "SBP debug flag");
 133 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 134         "SBP perform login automatically");
 135 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 136         "SBP transfer max speed");
 137 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 138         &ex_login, 0, "SBP transfer max speed");
 139 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 140         &login_delay, 0, "SBP login delay in msec");
 141 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 142         &scan_delay, 0, "SBP scan delay in msec");
 143 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 144         "SBP tagged queuing support");
 145
 146 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 147 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 148 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 149 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 150 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 151 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 152
 153 #define NEED_RESPONSE 0
 154
 155 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 156 #ifdef __sparc64__ /* iommu */
 157 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
 158 #else
 159 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
 160 #endif
 161 struct sbp_ocb {
 162         STAILQ_ENTRY(sbp_ocb)   ocb;
 163         union ccb       *ccb;
 164         bus_addr_t      bus_addr;
 165         u_int32_t       orb[8];
 166 #define IND_PTR_OFFSET  (8*sizeof(u_int32_t))
 167         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 168         struct sbp_dev  *sdev;
 169         int             flags; /* XXX should be removed */
 170         bus_dmamap_t    dmamap;
 171 };
 172
 173 #define OCB_ACT_MGM 0
 174 #define OCB_ACT_CMD 1
 175 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 176
 177 struct sbp_dev{
 178 #define SBP_DEV_RESET           0       /* accept login */
 179 #define SBP_DEV_LOGIN           1       /* to login */
 180 #if 0
 181 #define SBP_DEV_RECONN          2       /* to reconnect */
 182 #endif
 183 #define SBP_DEV_TOATTACH        3       /* to attach */
 184 #define SBP_DEV_PROBE           4       /* scan lun */
 185 #define SBP_DEV_ATTACHED        5       /* in operation */
 186 #define SBP_DEV_DEAD            6       /* unavailable unit */
 187 #define SBP_DEV_RETRY           7       /* unavailable unit */
 188         u_int8_t status:4,
 189                  timeout:4;
 190         u_int8_t type;
 191         u_int16_t lun_id;
 192         u_int16_t freeze;
 193 #define ORB_LINK_DEAD           (1 << 0)
 194 #define VALID_LUN               (1 << 1)
 195 #define ORB_POINTER_ACTIVE      (1 << 2)
 196 #define ORB_POINTER_NEED        (1 << 3)
 197         u_int16_t flags;
 198         struct cam_path *path;
 199         struct sbp_target *target;
 200         struct fwdma_alloc dma;
 201         struct sbp_login_res *login;
 202         struct callout login_callout;
 203         struct sbp_ocb *ocb;
 204         STAILQ_HEAD(, sbp_ocb) ocbs;
 205         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 206         char vendor[32];
 207         char product[32];
 208         char revision[10];
 209 };
 210
 211 struct sbp_target {
 212         int target_id;
 213         int num_lun;
 214         struct sbp_dev  **luns;
 215         struct sbp_softc *sbp;
 216         struct fw_device *fwdev;
 217         u_int32_t mgm_hi, mgm_lo;
 218         struct sbp_ocb *mgm_ocb_cur;
 219         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 220         struct callout mgm_ocb_timeout;
 221         struct callout scan_callout;
 222         STAILQ_HEAD(, fw_xfer) xferlist;
 223         int n_xfer;
 224 };
 225
 226 struct sbp_softc {
 227         struct firewire_dev_comm fd;
 228         struct cam_sim  *sim;
 229         struct cam_path  *path;
 230         struct sbp_target targets[SBP_NUM_TARGETS];
 231         struct fw_bind fwb;
 232         bus_dma_tag_t   dmat;
 233         struct timeval last_busreset;
 234 #define SIMQ_FREEZED 1
 235         int flags;
 236 };
 237
 238 static void sbp_post_explore (void *);
 239 static void sbp_recv (struct fw_xfer *);
 240 static void sbp_mgm_callback (struct fw_xfer *);
 241 #if 0
 242 static void sbp_cmd_callback (struct fw_xfer *);
 243 #endif
 244 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 245 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 246 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 247 static void sbp_abort_ocb (struct sbp_ocb *, int);
 248 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 249 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 250 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 251 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 252 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 253 static void sbp_cam_detach_sdev(struct sbp_dev *);
 254 static void sbp_free_sdev(struct sbp_dev *);
 255 static void sbp_cam_detach_target (struct sbp_target *);
 256 static void sbp_free_target (struct sbp_target *);
 257 static void sbp_mgm_timeout (void *arg);
 258 static void sbp_timeout (void *arg);
 259 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 260
 261 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 262
 263 /* cam related functions */
 264 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 265 static void     sbp_poll(struct cam_sim *sim);
 266 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 267 static void     sbp_cam_scan_target(void *arg);
 268
 269 static char *orb_status0[] = {
 270         /* 0 */ "No additional information to report",
 271         /* 1 */ "Request type not supported",
 272         /* 2 */ "Speed not supported",
 273         /* 3 */ "Page size not supported",
 274         /* 4 */ "Access denied",
 275         /* 5 */ "Logical unit not supported",
 276         /* 6 */ "Maximum payload too small",
 277         /* 7 */ "Reserved for future standardization",
 278         /* 8 */ "Resources unavailable",
 279         /* 9 */ "Function rejected",
 280         /* A */ "Login ID not recognized",
 281         /* B */ "Dummy ORB completed",
 282         /* C */ "Request aborted",
 283         /* FF */ "Unspecified error"
 284 #define MAX_ORB_STATUS0 0xd
 285 };
 286
 287 static char *orb_status1_object[] = {
 288         /* 0 */ "Operation request block (ORB)",
 289         /* 1 */ "Data buffer",
 290         /* 2 */ "Page table",
 291         /* 3 */ "Unable to specify"
 292 };
 293
 294 static char *orb_status1_serial_bus_error[] = {
 295         /* 0 */ "Missing acknowledge",
 296         /* 1 */ "Reserved; not to be used",
 297         /* 2 */ "Time-out error",
 298         /* 3 */ "Reserved; not to be used",
 299         /* 4 */ "Busy retry limit exceeded(X)",
 300         /* 5 */ "Busy retry limit exceeded(A)",
 301         /* 6 */ "Busy retry limit exceeded(B)",
 302         /* 7 */ "Reserved for future standardization",
 303         /* 8 */ "Reserved for future standardization",
 304         /* 9 */ "Reserved for future standardization",
 305         /* A */ "Reserved for future standardization",
 306         /* B */ "Tardy retry limit exceeded",
 307         /* C */ "Conflict error",
 308         /* D */ "Data error",
 309         /* E */ "Type error",
 310         /* F */ "Address error"
 311 };
 312
 313 static void
 314 sbp_identify(driver_t *driver, device_t parent)
 315 {
 316         device_t child;
 317 SBP_DEBUG(0)
 318         printf("sbp_identify\n");
 319 END_DEBUG
 320
 321         child = BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
 322 }
 323
 324 /*
 325  * sbp_probe()
 326  */
 327 static int
 328 sbp_probe(device_t dev)
 329 {
 330         device_t pa;
 331
 332 SBP_DEBUG(0)
 333         printf("sbp_probe\n");
 334 END_DEBUG
 335
 336         pa = device_get_parent(dev);
 337         if(device_get_unit(dev) != device_get_unit(pa)){
 338                 return(ENXIO);
 339         }
 340
 341         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 342
 343         if (bootverbose)
 344                 debug = bootverbose;
 345         return (0);
 346 }
 347
 348 static void
 349 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
 350 {
 351         struct fw_device *fwdev;
 352
 353         printf("%s:%d:%d ",
 354                 device_get_nameunit(sdev->target->sbp->fd.dev),
 355                 sdev->target->target_id,
 356                 sdev->lun_id
 357         );
 358         if (new == 2) {
 359                 return;
 360         }
 361         fwdev = sdev->target->fwdev;
 362         printf("ordered:%d type:%d EUI:%08x%08x node:%d "
 363                 "speed:%d maxrec:%d",
 364                 (sdev->type & 0x40) >> 6,
 365                 (sdev->type & 0x1f),
 366                 fwdev->eui.hi,
 367                 fwdev->eui.lo,
 368                 fwdev->dst,
 369                 fwdev->speed,
 370                 fwdev->maxrec
 371         );
 372         if (new)
 373                 printf(" new!\n");
 374         else
 375                 printf("\n");
 376         sbp_show_sdev_info(sdev, 2);
 377         printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
 378 }
 379
 380 static struct {
 381         int bus;
 382         int target;
 383         struct fw_eui64 eui;
 384 } wired[] = {
 385         /* Bus  Target  EUI64 */
 386 #if 0
 387         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 388         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 389         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 390 #endif
 391         {-1,    -1,     {0,0}}
 392 };
 393
 394 static int
 395 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 396 {
 397         int bus, i, target=-1;
 398         char w[SBP_NUM_TARGETS];
 399
 400         bzero(w, sizeof(w));
 401         bus = device_get_unit(sbp->fd.dev);
 402
 403         /* XXX wired-down configuration should be gotten from
 404                                         tunable or device hint */
 405         for (i = 0; wired[i].bus >= 0; i ++) {
 406                 if (wired[i].bus == bus) {
 407                         w[wired[i].target] = 1;
 408                         if (wired[i].eui.hi == fwdev->eui.hi &&
 409                                         wired[i].eui.lo == fwdev->eui.lo)
 410                                 target = wired[i].target;
 411                 }
 412         }
 413         if (target >= 0) {
 414                 if(target < SBP_NUM_TARGETS &&
 415                                 sbp->targets[target].fwdev == NULL)
 416                         return(target);
 417                 device_printf(sbp->fd.dev,
 418                         "target %d is not free for %08x:%08x\n",
 419                         target, fwdev->eui.hi, fwdev->eui.lo);
 420                 target = -1;
 421         }
 422         /* non-wired target */
 423         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 424                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 425                         target = i;
 426                         break;
 427                 }
 428
 429         return target;
 430 }
 431
 432 static void
 433 sbp_alloc_lun(struct sbp_target *target)
 434 {
 435         struct crom_context cc;
 436         struct csrreg *reg;
 437         struct sbp_dev *sdev, **newluns;
 438         struct sbp_softc *sbp;
 439         int maxlun, lun, i;
 440
 441         sbp = target->sbp;
 442         crom_init_context(&cc, target->fwdev->csrrom);
 443         /* XXX shoud parse appropriate unit directories only */
 444         maxlun = -1;
 445         while (cc.depth >= 0) {
 446                 reg = crom_search_key(&cc, CROM_LUN);
 447                 if (reg == NULL)
 448                         break;
 449                 lun = reg->val & 0xffff;
 450 SBP_DEBUG(0)
 451                 printf("target %d lun %d found\n", target->target_id, lun);
 452 END_DEBUG
 453                 if (maxlun < lun)
 454                         maxlun = lun;
 455                 crom_next(&cc);
 456         }
 457         if (maxlun < 0)
 458                 printf("%s:%d no LUN found\n",
 459                     device_get_nameunit(target->sbp->fd.dev),
 460                     target->target_id);
 461
 462         maxlun ++;
 463         if (maxlun >= SBP_NUM_LUNS)
 464                 maxlun = SBP_NUM_LUNS;
 465
 466         /* Invalidiate stale devices */
 467         for (lun = 0; lun < target->num_lun; lun ++) {
 468                 sdev = target->luns[lun];
 469                 if (sdev == NULL)
 470                         continue;
 471                 sdev->flags &= ~VALID_LUN;
 472                 if (lun >= maxlun) {
 473                         /* lost device */
 474                         sbp_cam_detach_sdev(sdev);
 475                         sbp_free_sdev(sdev);
 476                 }
 477         }
 478
 479         /* Reallocate */
 480         if (maxlun != target->num_lun) {
 481                 /*
 482                  * note: realloc() does not support M_ZERO.  We must zero
 483                  * the extended region manually.
 484                  */
 485                 newluns = realloc(target->luns,
 486                                 sizeof(struct sbp_dev *) * maxlun,
 487                                 M_SBP, M_WAITOK);
 488
 489                 if (maxlun > target->num_lun) {
 490                         bzero(&newluns[target->num_lun],
 491                             sizeof(struct sbp_dev *) *
 492                              (maxlun - target->num_lun));
 493                 }
 494                 target->luns = newluns;
 495                 target->num_lun = maxlun;
 496         }
 497
 498         crom_init_context(&cc, target->fwdev->csrrom);
 499         while (cc.depth >= 0) {
 500                 int new = 0;
 501
 502                 reg = crom_search_key(&cc, CROM_LUN);
 503                 if (reg == NULL)
 504                         break;
 505                 lun = reg->val & 0xffff;
 506                 if (lun >= SBP_NUM_LUNS) {
 507                         printf("too large lun %d\n", lun);
 508                         goto next;
 509                 }
 510
 511                 sdev = target->luns[lun];
 512                 if (sdev == NULL) {
 513                         sdev = malloc(sizeof(struct sbp_dev),
 514                             M_SBP, M_WAITOK | M_ZERO);
 515                         target->luns[lun] = sdev;
 516                         sdev->lun_id = lun;
 517                         sdev->target = target;
 518                         STAILQ_INIT(&sdev->ocbs);
 519                         CALLOUT_INIT(&sdev->login_callout);
 520                         sdev->status = SBP_DEV_RESET;
 521                         new = 1;
 522                 }
 523                 sdev->flags |= VALID_LUN;
 524                 sdev->type = (reg->val & 0xff0000) >> 16;
 525
 526                 if (new == 0)
 527                         goto next;
 528
 529                 fwdma_malloc(sbp->fd.fc,
 530                         /* alignment */ sizeof(u_int32_t),
 531                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 532                 if (sdev->dma.v_addr == NULL) {
 533                         printf("%s: dma space allocation failed\n",
 534                                                         __func__);
 535                         free(sdev, M_SBP);
 536                         target->luns[lun] = NULL;
 537                         goto next;
 538                 }
 539                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 540                 sdev->ocb = (struct sbp_ocb *)
 541                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 542                 bzero((char *)sdev->ocb,
 543                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 544
 545                 STAILQ_INIT(&sdev->free_ocbs);
 546                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 547                         struct sbp_ocb *ocb;
 548                         ocb = &sdev->ocb[i];
 549                         ocb->bus_addr = sdev->dma.bus_addr
 550                                 + SBP_LOGIN_SIZE
 551                                 + sizeof(struct sbp_ocb) * i
 552                                 + offsetof(struct sbp_ocb, orb[0]);
 553                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 554                                 printf("sbp_attach: cannot create dmamap\n");
 555                                 /* XXX */
 556                                 goto next;
 557                         }
 558                         sbp_free_ocb(sdev, ocb);
 559                 }
 560 next:
 561                 crom_next(&cc);
 562         }
 563
 564         for (lun = 0; lun < target->num_lun; lun ++) {
 565                 sdev = target->luns[lun];
 566                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 567                         sbp_cam_detach_sdev(sdev);
 568                         sbp_free_sdev(sdev);
 569                         target->luns[lun] = NULL;
 570                 }
 571         }
 572 }
 573
 574 static struct sbp_target *
 575 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 576 {
 577         int i;
 578         struct sbp_target *target;
 579         struct crom_context cc;
 580         struct csrreg *reg;
 581
 582 SBP_DEBUG(1)
 583         printf("sbp_alloc_target\n");
 584 END_DEBUG
 585         i = sbp_new_target(sbp, fwdev);
 586         if (i < 0) {
 587                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 588                 return NULL;
 589         }
 590         /* new target */
 591         target = &sbp->targets[i];
 592         target->sbp = sbp;
 593         target->fwdev = fwdev;
 594         target->target_id = i;
 595         /* XXX we may want to reload mgm port after each bus reset */
 596         /* XXX there might be multiple management agents */
 597         crom_init_context(&cc, target->fwdev->csrrom);
 598         reg = crom_search_key(&cc, CROM_MGM);
 599         if (reg == NULL || reg->val == 0) {
 600                 printf("NULL management address\n");
 601                 target->fwdev = NULL;
 602                 return NULL;
 603         }
 604         target->mgm_hi = 0xffff;
 605         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 606         target->mgm_ocb_cur = NULL;
 607 SBP_DEBUG(1)
 608         printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 609 END_DEBUG
 610         STAILQ_INIT(&target->xferlist);
 611         target->n_xfer = 0;
 612         STAILQ_INIT(&target->mgm_ocb_queue);
 613         CALLOUT_INIT(&target->mgm_ocb_timeout);
 614         CALLOUT_INIT(&target->scan_callout);
 615
 616         target->luns = NULL;
 617         target->num_lun = 0;
 618         return target;
 619 }
 620
 621 static void
 622 sbp_probe_lun(struct sbp_dev *sdev)
 623 {
 624         struct fw_device *fwdev;
 625         struct crom_context c, *cc = &c;
 626         struct csrreg *reg;
 627
 628         bzero(sdev->vendor, sizeof(sdev->vendor));
 629         bzero(sdev->product, sizeof(sdev->product));
 630
 631         fwdev = sdev->target->fwdev;
 632         crom_init_context(cc, fwdev->csrrom);
 633         /* get vendor string */
 634         crom_search_key(cc, CSRKEY_VENDOR);
 635         crom_next(cc);
 636         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 637         /* skip to the unit directory for SBP-2 */
 638         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 639                 if (reg->val == CSRVAL_T10SBP2)
 640                         break;
 641                 crom_next(cc);
 642         }
 643         /* get firmware revision */
 644         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 645         if (reg != NULL)
 646                 snprintf(sdev->revision, sizeof(sdev->revision),
 647                                                 "%06x", reg->val);
 648         /* get product string */
 649         crom_search_key(cc, CSRKEY_MODEL);
 650         crom_next(cc);
 651         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 652 }
 653
 654 static void
 655 sbp_login_callout(void *arg)
 656 {
 657         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 658         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 659 }
 660
 661 static void
 662 sbp_login(struct sbp_dev *sdev)
 663 {
 664         struct timeval delta;
 665         struct timeval t;
 666         int ticks = 0;
 667
 668         microtime(&delta);
 669         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 670         t.tv_sec = login_delay / 1000;
 671         t.tv_usec = (login_delay % 1000) * 1000;
 672         timevalsub(&t, &delta);
 673         if (t.tv_sec >= 0 && t.tv_usec > 0)
 674                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 675 SBP_DEBUG(0)
 676         printf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
 677             t.tv_sec, t.tv_usec, ticks);
 678 END_DEBUG
 679         callout_reset(&sdev->login_callout, ticks,
 680                         sbp_login_callout, (void *)(sdev));
 681 }
 682
 683 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 684         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 685
 686 static void
 687 sbp_probe_target(void *arg)
 688 {
 689         struct sbp_target *target = (struct sbp_target *)arg;
 690         struct sbp_softc *sbp;
 691         struct sbp_dev *sdev;
 692         struct firewire_comm *fc;
 693         int i, alive;
 694
 695         alive = SBP_FWDEV_ALIVE(target->fwdev);
 696 SBP_DEBUG(1)
 697         printf("sbp_probe_target %d\n", target->target_id);
 698         if (!alive)
 699                 printf("not alive\n");
 700 END_DEBUG
 701
 702         sbp = target->sbp;
 703         fc = target->sbp->fd.fc;
 704         sbp_alloc_lun(target);
 705
 706         /* XXX untimeout mgm_ocb and dequeue */
 707         for (i=0; i < target->num_lun; i++) {
 708                 sdev = target->luns[i];
 709                 if (sdev == NULL)
 710                         continue;
 711                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 712                         if (sdev->path != NULL) {
 713                                 xpt_freeze_devq(sdev->path, 1);
 714                                 sdev->freeze ++;
 715                         }
 716                         sbp_probe_lun(sdev);
 717 SBP_DEBUG(0)
 718                         sbp_show_sdev_info(sdev,
 719                                         (sdev->status == SBP_DEV_RESET));
 720 END_DEBUG
 721
 722                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 723                         switch (sdev->status) {
 724                         case SBP_DEV_RESET:
 725                                 /* new or revived target */
 726                                 if (auto_login)
 727                                         sbp_login(sdev);
 728                                 break;
 729                         case SBP_DEV_TOATTACH:
 730                         case SBP_DEV_PROBE:
 731                         case SBP_DEV_ATTACHED:
 732                         case SBP_DEV_RETRY:
 733                         default:
 734                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 735                                 break;
 736                         }
 737                 } else {
 738                         switch (sdev->status) {
 739                         case SBP_DEV_ATTACHED:
 740 SBP_DEBUG(0)
 741                                 /* the device has gone */
 742                                 sbp_show_sdev_info(sdev, 2);
 743                                 printf("lost target\n");
 744 END_DEBUG
 745                                 if (sdev->path) {
 746                                         xpt_freeze_devq(sdev->path, 1);
 747                                         sdev->freeze ++;
 748                                 }
 749                                 sdev->status = SBP_DEV_RETRY;
 750                                 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 751                                 break;
 752                         case SBP_DEV_PROBE:
 753                         case SBP_DEV_TOATTACH:
 754                                 sdev->status = SBP_DEV_RESET;
 755                                 break;
 756                         case SBP_DEV_RETRY:
 757                         case SBP_DEV_RESET:
 758                         case SBP_DEV_DEAD:
 759                                 break;
 760                         }
 761                 }
 762         }
 763 }
 764
 765 static void
 766 sbp_post_busreset(void *arg)
 767 {
 768         struct sbp_softc *sbp;
 769
 770         sbp = (struct sbp_softc *)arg;
 771 SBP_DEBUG(0)
 772         printf("sbp_post_busreset\n");
 773 END_DEBUG
 774         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 775                 xpt_freeze_simq(sbp->sim, /*count*/1);
 776                 sbp->sim->flags |= SIMQ_FREEZED;
 777         }
 778         microtime(&sbp->last_busreset);
 779 }
 780
 781 static void
 782 sbp_post_explore(void *arg)
 783 {
 784         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 785         struct sbp_target *target;
 786         struct fw_device *fwdev;
 787         int i, alive;
 788
 789 SBP_DEBUG(0)
 790         printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
 791 END_DEBUG
 792         if (sbp_cold > 0)
 793                 sbp_cold --;
 794
 795 #if 0
 796         /*
 797          * XXX don't let CAM the bus rest.
 798          * CAM tries to do something with freezed (DEV_RETRY) devices.
 799          */
 800         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 801 #endif
 802
 803         /* Gabage Collection */
 804         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 805                 target = &sbp->targets[i];
 806                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 807                         if (target->fwdev == NULL || target->fwdev == fwdev)
 808                                 break;
 809                 if (fwdev == NULL) {
 810                         /* device has removed in lower driver */
 811                         sbp_cam_detach_target(target);
 812                         sbp_free_target(target);
 813                 }
 814         }
 815         /* traverse device list */
 816         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 817 SBP_DEBUG(0)
 818                 printf("sbp_post_explore: EUI:%08x%08x ",
 819                                 fwdev->eui.hi, fwdev->eui.lo);
 820                 if (fwdev->status != FWDEVATTACHED)
 821                         printf("not attached, state=%d.\n", fwdev->status);
 822                 else
 823                         printf("attached\n");
 824 END_DEBUG
 825                 alive = SBP_FWDEV_ALIVE(fwdev);
 826                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 827                         target = &sbp->targets[i];
 828                         if(target->fwdev == fwdev ) {
 829                                 /* known target */
 830                                 break;
 831                         }
 832                 }
 833                 if(i == SBP_NUM_TARGETS){
 834                         if (alive) {
 835                                 /* new target */
 836                                 target = sbp_alloc_target(sbp, fwdev);
 837                                 if (target == NULL)
 838                                         continue;
 839                         } else {
 840                                 continue;
 841                         }
 842                 }
 843                 sbp_probe_target((void *)target);
 844                 if (target->num_lun == 0)
 845                         sbp_free_target(target);
 846         }
 847         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 848         sbp->sim->flags &= ~SIMQ_FREEZED;
 849 }
 850
 851 #if NEED_RESPONSE
 852 static void
 853 sbp_loginres_callback(struct fw_xfer *xfer){
 854         struct sbp_dev *sdev;
 855         sdev = (struct sbp_dev *)xfer->sc;
 856 SBP_DEBUG(1)
 857         sbp_show_sdev_info(sdev, 2);
 858         printf("sbp_loginres_callback\n");
 859 END_DEBUG
 860         /* recycle */
 861         crit_enter();
 862         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 863         crit_exit();
 864         return;
 865 }
 866 #endif
 867
 868 static __inline void
 869 sbp_xfer_free(struct fw_xfer *xfer)
 870 {
 871         struct sbp_dev *sdev;
 872
 873         sdev = (struct sbp_dev *)xfer->sc;
 874         fw_xfer_unload(xfer);
 875         crit_enter();
 876         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 877         crit_exit();
 878 }
 879
 880 static void
 881 sbp_reset_start_callback(struct fw_xfer *xfer)
 882 {
 883         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 884         struct sbp_target *target = sdev->target;
 885         int i;
 886
 887         if (xfer->resp != 0) {
 888                 sbp_show_sdev_info(sdev, 2);
 889                 printf("sbp_reset_start failed: resp=%d\n", xfer->resp);
 890         }
 891
 892         for (i = 0; i < target->num_lun; i++) {
 893                 tsdev = target->luns[i];
 894                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 895                         sbp_login(tsdev);
 896         }
 897 }
 898
 899 static void
 900 sbp_reset_start(struct sbp_dev *sdev)
 901 {
 902         struct fw_xfer *xfer;
 903         struct fw_pkt *fp;
 904
 905 SBP_DEBUG(0)
 906         sbp_show_sdev_info(sdev, 2);
 907         printf("sbp_reset_start\n");
 908 END_DEBUG
 909
 910         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 911         xfer->act.hand = sbp_reset_start_callback;
 912         fp = &xfer->send.hdr;
 913         fp->mode.wreqq.dest_hi = 0xffff;
 914         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 915         fp->mode.wreqq.data = htonl(0xf);
 916         fw_asyreq(xfer->fc, -1, xfer);
 917 }
 918
 919 static void
 920 sbp_mgm_callback(struct fw_xfer *xfer)
 921 {
 922         struct sbp_dev *sdev;
 923         int resp;
 924
 925         sdev = (struct sbp_dev *)xfer->sc;
 926
 927 SBP_DEBUG(1)
 928         sbp_show_sdev_info(sdev, 2);
 929         printf("sbp_mgm_callback\n");
 930 END_DEBUG
 931         resp = xfer->resp;
 932         sbp_xfer_free(xfer);
 933 #if 0
 934         if (resp != 0) {
 935                 sbp_show_sdev_info(sdev, 2);
 936                 printf("management ORB failed(%d) ... RESET_START\n", resp);
 937                 sbp_reset_start(sdev);
 938         }
 939 #endif
 940         return;
 941 }
 942
 943 static struct sbp_dev *
 944 sbp_next_dev(struct sbp_target *target, int lun)
 945 {
 946         struct sbp_dev **sdevp;
 947         int i;
 948
 949         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 950             i++, sdevp++)
 951                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 952                         return(*sdevp);
 953         return(NULL);
 954 }
 955
 956 #define SCAN_PRI 1
 957 static void
 958 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 959 {
 960         struct sbp_target *target;
 961         struct sbp_dev *sdev;
 962
 963         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
 964         target = sdev->target;
 965 SBP_DEBUG(0)
 966         sbp_show_sdev_info(sdev, 2);
 967         printf("sbp_cam_scan_lun\n");
 968 END_DEBUG
 969         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 970                 sdev->status = SBP_DEV_ATTACHED;
 971         } else {
 972                 sbp_show_sdev_info(sdev, 2);
 973                 printf("scan failed\n");
 974         }
 975         sdev = sbp_next_dev(target, sdev->lun_id + 1);
 976         if (sdev == NULL) {
 977                 free(ccb, M_SBP);
 978                 return;
 979         }
 980         /* reuse ccb */
 981         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 982         ccb->ccb_h.ccb_sdev_ptr = sdev;
 983         xpt_action(ccb);
 984         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 985         sdev->freeze = 1;
 986 }
 987
 988 static void
 989 sbp_cam_scan_target(void *arg)
 990 {
 991         struct sbp_target *target = (struct sbp_target *)arg;
 992         struct sbp_dev *sdev;
 993         union ccb *ccb;
 994
 995         sdev = sbp_next_dev(target, 0);
 996         if (sdev == NULL) {
 997                 printf("sbp_cam_scan_target: nothing to do for target%d\n",
 998                                                         target->target_id);
 999                 return;
1000         }
1001 SBP_DEBUG(0)
1002         sbp_show_sdev_info(sdev, 2);
1003         printf("sbp_cam_scan_target\n");
1004 END_DEBUG
1005         ccb = malloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
1006         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1007         ccb->ccb_h.func_code = XPT_SCAN_LUN;
1008         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1009         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1010         ccb->crcn.flags = CAM_FLAG_NONE;
1011         ccb->ccb_h.ccb_sdev_ptr = sdev;
1012
1013         /* The scan is in progress now. */
1014         xpt_action(ccb);
1015         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1016         sdev->freeze = 1;
1017 }
1018
1019 static __inline void
1020 sbp_scan_dev(struct sbp_dev *sdev)
1021 {
1022         sdev->status = SBP_DEV_PROBE;
1023         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1024                         sbp_cam_scan_target, (void *)sdev->target);
1025 }
1026
1027 static void
1028 sbp_do_attach(struct fw_xfer *xfer)
1029 {
1030         struct sbp_dev *sdev;
1031         struct sbp_target *target;
1032         struct sbp_softc *sbp;
1033
1034         sdev = (struct sbp_dev *)xfer->sc;
1035         target = sdev->target;
1036         sbp = target->sbp;
1037 SBP_DEBUG(0)
1038         sbp_show_sdev_info(sdev, 2);
1039         printf("sbp_do_attach\n");
1040 END_DEBUG
1041         sbp_xfer_free(xfer);
1042
1043         if (sdev->path == NULL)
1044                 xpt_create_path(&sdev->path, xpt_periph,
1045                         cam_sim_path(target->sbp->sim),
1046                         target->target_id, sdev->lun_id);
1047
1048         /*
1049          * Let CAM scan the bus if we are in the boot process.
1050          * XXX xpt_scan_bus cannot detect LUN larger than 0
1051          * if LUN 0 doesn't exists.
1052          */
1053         if (sbp_cold > 0) {
1054                 sdev->status = SBP_DEV_ATTACHED;
1055                 return;
1056         }
1057
1058         sbp_scan_dev(sdev);
1059         return;
1060 }
1061
1062 static void
1063 sbp_agent_reset_callback(struct fw_xfer *xfer)
1064 {
1065         struct sbp_dev *sdev;
1066
1067         sdev = (struct sbp_dev *)xfer->sc;
1068 SBP_DEBUG(1)
1069         sbp_show_sdev_info(sdev, 2);
1070         printf("%s\n", __func__);
1071 END_DEBUG
1072         if (xfer->resp != 0) {
1073                 sbp_show_sdev_info(sdev, 2);
1074                 printf("%s: resp=%d\n", __func__, xfer->resp);
1075         }
1076
1077         sbp_xfer_free(xfer);
1078         if (sdev->path) {
1079                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1080                 sdev->freeze = 0;
1081         }
1082 }
1083
1084 static void
1085 sbp_agent_reset(struct sbp_dev *sdev)
1086 {
1087         struct fw_xfer *xfer;
1088         struct fw_pkt *fp;
1089
1090 SBP_DEBUG(0)
1091         sbp_show_sdev_info(sdev, 2);
1092         printf("sbp_agent_reset\n");
1093 END_DEBUG
1094         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1095         if (xfer == NULL)
1096                 return;
1097         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1098                 xfer->act.hand = sbp_agent_reset_callback;
1099         else
1100                 xfer->act.hand = sbp_do_attach;
1101         fp = &xfer->send.hdr;
1102         fp->mode.wreqq.data = htonl(0xf);
1103         fw_asyreq(xfer->fc, -1, xfer);
1104         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1105 }
1106
1107 static void
1108 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1109 {
1110         struct sbp_dev *sdev;
1111
1112         sdev = (struct sbp_dev *)xfer->sc;
1113 SBP_DEBUG(1)
1114         sbp_show_sdev_info(sdev, 2);
1115         printf("sbp_busy_timeout_callback\n");
1116 END_DEBUG
1117         sbp_xfer_free(xfer);
1118         sbp_agent_reset(sdev);
1119 }
1120
1121 static void
1122 sbp_busy_timeout(struct sbp_dev *sdev)
1123 {
1124         struct fw_pkt *fp;
1125         struct fw_xfer *xfer;
1126 SBP_DEBUG(0)
1127         sbp_show_sdev_info(sdev, 2);
1128         printf("sbp_busy_timeout\n");
1129 END_DEBUG
1130         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1131
1132         xfer->act.hand = sbp_busy_timeout_callback;
1133         fp = &xfer->send.hdr;
1134         fp->mode.wreqq.dest_hi = 0xffff;
1135         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1136         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1137         fw_asyreq(xfer->fc, -1, xfer);
1138 }
1139
1140 static void
1141 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1142 {
1143         struct sbp_dev *sdev;
1144         sdev = (struct sbp_dev *)xfer->sc;
1145
1146 SBP_DEBUG(1)
1147         sbp_show_sdev_info(sdev, 2);
1148         printf("%s\n", __func__);
1149 END_DEBUG
1150         if (xfer->resp != 0) {
1151                 /* XXX */
1152                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1153         }
1154         sbp_xfer_free(xfer);
1155         sdev->flags &= ~ORB_POINTER_ACTIVE;
1156
1157         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1158                 struct sbp_ocb *ocb;
1159
1160                 sdev->flags &= ~ORB_POINTER_NEED;
1161                 ocb = STAILQ_FIRST(&sdev->ocbs);
1162                 if (ocb != NULL)
1163                         sbp_orb_pointer(sdev, ocb);
1164         }
1165         return;
1166 }
1167
1168 static void
1169 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1170 {
1171         struct fw_xfer *xfer;
1172         struct fw_pkt *fp;
1173 SBP_DEBUG(1)
1174         sbp_show_sdev_info(sdev, 2);
1175         printf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1176 END_DEBUG
1177
1178         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1179 SBP_DEBUG(0)
1180                 printf("%s: orb pointer active\n", __func__);
1181 END_DEBUG
1182                 sdev->flags |= ORB_POINTER_NEED;
1183                 return;
1184         }
1185
1186         sdev->flags |= ORB_POINTER_ACTIVE;
1187         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1188         if (xfer == NULL)
1189                 return;
1190         xfer->act.hand = sbp_orb_pointer_callback;
1191
1192         fp = &xfer->send.hdr;
1193         fp->mode.wreqb.len = 8;
1194         fp->mode.wreqb.extcode = 0;
1195         xfer->send.payload[0] =
1196                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1197         xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1198
1199         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1200                         sbp_xfer_free(xfer);
1201                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1202                         xpt_done(ocb->ccb);
1203         }
1204 }
1205
1206 #if 0
1207 static void
1208 sbp_cmd_callback(struct fw_xfer *xfer)
1209 {
1210 SBP_DEBUG(1)
1211         struct sbp_dev *sdev;
1212         sdev = (struct sbp_dev *)xfer->sc;
1213         sbp_show_sdev_info(sdev, 2);
1214         printf("sbp_cmd_callback\n");
1215 END_DEBUG
1216         if (xfer->resp != 0) {
1217                 /* XXX */
1218                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1219         }
1220         sbp_xfer_free(xfer);
1221         return;
1222 }
1223
1224 static void
1225 sbp_doorbell(struct sbp_dev *sdev)
1226 {
1227         struct fw_xfer *xfer;
1228         struct fw_pkt *fp;
1229 SBP_DEBUG(1)
1230         sbp_show_sdev_info(sdev, 2);
1231         printf("sbp_doorbell\n");
1232 END_DEBUG
1233
1234         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1235         if (xfer == NULL)
1236                 return;
1237         xfer->act.hand = sbp_cmd_callback;
1238         fp = (struct fw_pkt *)xfer->send.buf;
1239         fp->mode.wreqq.data = htonl(0xf);
1240         fw_asyreq(xfer->fc, -1, xfer);
1241 }
1242 #endif
1243
1244 static struct fw_xfer *
1245 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1246 {
1247         struct fw_xfer *xfer;
1248         struct fw_pkt *fp;
1249         struct sbp_target *target;
1250         int new = 0;
1251
1252         target = sdev->target;
1253         crit_enter();
1254         xfer = STAILQ_FIRST(&target->xferlist);
1255         if (xfer == NULL) {
1256                 if (target->n_xfer > 5 /* XXX */) {
1257                         printf("sbp: no more xfer for this target\n");
1258                         crit_exit();
1259                         return(NULL);
1260                 }
1261                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1262                 if(xfer == NULL){
1263                         printf("sbp: fw_xfer_alloc_buf failed\n");
1264                         crit_exit();
1265                         return NULL;
1266                 }
1267                 target->n_xfer ++;
1268                 if (debug)
1269                         printf("sbp: alloc %d xfer\n", target->n_xfer);
1270                 new = 1;
1271         } else {
1272                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1273         }
1274         crit_exit();
1275
1276         microtime(&xfer->tv);
1277
1278         if (new) {
1279                 xfer->recv.pay_len = 0;
1280                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1281                 xfer->fc = sdev->target->sbp->fd.fc;
1282                 xfer->retry_req = fw_asybusy;
1283         }
1284
1285         if (tcode == FWTCODE_WREQB)
1286                 xfer->send.pay_len = 8;
1287         else
1288                 xfer->send.pay_len = 0;
1289
1290         xfer->sc = (caddr_t)sdev;
1291         fp = &xfer->send.hdr;
1292         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1293         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1294         fp->mode.wreqq.tlrt = 0;
1295         fp->mode.wreqq.tcode = tcode;
1296         fp->mode.wreqq.pri = 0;
1297         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1298
1299         return xfer;
1300
1301 }
1302
1303 static void
1304 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1305 {
1306         struct fw_xfer *xfer;
1307         struct fw_pkt *fp;
1308         struct sbp_ocb *ocb;
1309         struct sbp_target *target;
1310         int nid;
1311
1312         target = sdev->target;
1313         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1314
1315         crit_enter();
1316         if (func == ORB_FUN_RUNQUEUE) {
1317                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1318                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1319                         crit_exit();
1320                         return;
1321                 }
1322                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1323                 goto start;
1324         }
1325         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1326                 crit_exit();
1327                 /* XXX */
1328                 return;
1329         }
1330         ocb->flags = OCB_ACT_MGM;
1331         ocb->sdev = sdev;
1332
1333         bzero((void *)ocb->orb, sizeof(ocb->orb));
1334         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1335         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1336
1337 SBP_DEBUG(0)
1338         sbp_show_sdev_info(sdev, 2);
1339         printf("%s\n", orb_fun_name[(func>>16)&0xf]);
1340 END_DEBUG
1341         switch (func) {
1342         case ORB_FUN_LGI:
1343                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1344                 ocb->orb[2] = htonl(nid << 16);
1345                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1346                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1347                 if (ex_login)
1348                         ocb->orb[4] |= htonl(ORB_EXV);
1349                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1350                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1351                 break;
1352         case ORB_FUN_ATA:
1353                 ocb->orb[0] = htonl((0 << 16) | 0);
1354                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1355                 /* fall through */
1356         case ORB_FUN_RCN:
1357         case ORB_FUN_LGO:
1358         case ORB_FUN_LUR:
1359         case ORB_FUN_RST:
1360         case ORB_FUN_ATS:
1361                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1362                 break;
1363         }
1364
1365         if (target->mgm_ocb_cur != NULL) {
1366                 /* there is a standing ORB */
1367                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1368                 crit_exit();
1369                 return;
1370         }
1371 start:
1372         target->mgm_ocb_cur = ocb;
1373         crit_exit();
1374
1375         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1376                                 sbp_mgm_timeout, (caddr_t)ocb);
1377         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1378         if(xfer == NULL){
1379                 return;
1380         }
1381         xfer->act.hand = sbp_mgm_callback;
1382
1383         fp = &xfer->send.hdr;
1384         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1385         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1386         fp->mode.wreqb.len = 8;
1387         fp->mode.wreqb.extcode = 0;
1388         xfer->send.payload[0] = htonl(nid << 16);
1389         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1390 SBP_DEBUG(0)
1391         sbp_show_sdev_info(sdev, 2);
1392         printf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1393 END_DEBUG
1394
1395         fw_asyreq(xfer->fc, -1, xfer);
1396 }
1397
1398 static void
1399 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1400 {
1401         struct ccb_scsiio *csio;
1402
1403         csio = &ocb->ccb->csio;
1404         printf("%s:%d:%d XPT_SCSI_IO: "
1405                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1406                 ", flags: 0x%02x, "
1407                 "%db cmd/%db data/%db sense\n",
1408                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1409                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1410                 csio->cdb_io.cdb_bytes[0],
1411                 csio->cdb_io.cdb_bytes[1],
1412                 csio->cdb_io.cdb_bytes[2],
1413                 csio->cdb_io.cdb_bytes[3],
1414                 csio->cdb_io.cdb_bytes[4],
1415                 csio->cdb_io.cdb_bytes[5],
1416                 csio->cdb_io.cdb_bytes[6],
1417                 csio->cdb_io.cdb_bytes[7],
1418                 csio->cdb_io.cdb_bytes[8],
1419                 csio->cdb_io.cdb_bytes[9],
1420                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1421                 csio->cdb_len, csio->dxfer_len,
1422                 csio->sense_len);
1423 }
1424
1425 static void
1426 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1427 {
1428         struct sbp_cmd_status *sbp_cmd_status;
1429         struct scsi_sense_data *sense;
1430
1431         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1432         sense = &ocb->ccb->csio.sense_data;
1433
1434 SBP_DEBUG(0)
1435         sbp_print_scsi_cmd(ocb);
1436         /* XXX need decode status */
1437         sbp_show_sdev_info(ocb->sdev, 2);
1438         printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1439                 sbp_cmd_status->status,
1440                 sbp_cmd_status->sfmt,
1441                 sbp_cmd_status->valid,
1442                 sbp_cmd_status->s_key,
1443                 sbp_cmd_status->s_code,
1444                 sbp_cmd_status->s_qlfr,
1445                 sbp_status->len
1446         );
1447 END_DEBUG
1448
1449         switch (sbp_cmd_status->status) {
1450         case SCSI_STATUS_CHECK_COND:
1451         case SCSI_STATUS_BUSY:
1452         case SCSI_STATUS_CMD_TERMINATED:
1453                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1454                         sense->error_code = SSD_CURRENT_ERROR;
1455                 }else{
1456                         sense->error_code = SSD_DEFERRED_ERROR;
1457                 }
1458                 if(sbp_cmd_status->valid)
1459                         sense->error_code |= SSD_ERRCODE_VALID;
1460                 sense->flags = sbp_cmd_status->s_key;
1461                 if(sbp_cmd_status->mark)
1462                         sense->flags |= SSD_FILEMARK;
1463                 if(sbp_cmd_status->eom)
1464                         sense->flags |= SSD_EOM;
1465                 if(sbp_cmd_status->ill_len)
1466                         sense->flags |= SSD_ILI;
1467
1468                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1469
1470                 if (sbp_status->len <= 1)
1471                         /* XXX not scsi status. shouldn't be happened */
1472                         sense->extra_len = 0;
1473                 else if (sbp_status->len <= 4)
1474                         /* add_sense_code(_qual), info, cmd_spec_info */
1475                         sense->extra_len = 6;
1476                 else
1477                         /* fru, sense_key_spec */
1478                         sense->extra_len = 10;
1479
1480                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1481
1482                 sense->add_sense_code = sbp_cmd_status->s_code;
1483                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1484                 sense->fru = sbp_cmd_status->fru;
1485
1486                 bcopy(&sbp_cmd_status->s_keydep[0],
1487                     &sense->sense_key_spec[0], 3);
1488
1489                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;;
1490                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1491                                                         | CAM_AUTOSNS_VALID;
1492 /*
1493 {
1494                 u_int8_t j, *tmp;
1495                 tmp = sense;
1496                 for( j = 0 ; j < 32 ; j+=8){
1497                         printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1498                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1499                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1500                 }
1501
1502 }
1503 */
1504                 break;
1505         default:
1506                 sbp_show_sdev_info(ocb->sdev, 2);
1507                 printf("sbp_scsi_status: unknown scsi status 0x%x\n",
1508                                                 sbp_cmd_status->status);
1509         }
1510 }
1511
1512 static void
1513 sbp_fix_inq_data(struct sbp_ocb *ocb)
1514 {
1515         union ccb *ccb;
1516         struct sbp_dev *sdev;
1517         struct scsi_inquiry_data *inq;
1518
1519         ccb = ocb->ccb;
1520         sdev = ocb->sdev;
1521
1522         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1523                 return;
1524 SBP_DEBUG(1)
1525         sbp_show_sdev_info(sdev, 2);
1526         printf("sbp_fix_inq_data\n");
1527 END_DEBUG
1528         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1529         switch (SID_TYPE(inq)) {
1530         case T_DIRECT:
1531 #if 0
1532                 /*
1533                  * XXX Convert Direct Access device to RBC.
1534                  * I've never seen FireWire DA devices which support READ_6.
1535                  */
1536                 if (SID_TYPE(inq) == T_DIRECT)
1537                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1538 #endif
1539                 /* fall through */
1540         case T_RBC:
1541                 /* enable tagged queuing */
1542                 if (sbp_tags)
1543                         inq->flags |= SID_CmdQue;
1544                 else
1545                         inq->flags &= ~SID_CmdQue;
1546                 /*
1547                  * Override vendor/product/revision information.
1548                  * Some devices sometimes return strange strings.
1549                  */
1550 #if 1
1551                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1552                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1553                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1554 #endif
1555                 break;
1556         }
1557 }
1558
1559 static void
1560 sbp_recv1(struct fw_xfer *xfer)
1561 {
1562         struct fw_pkt *rfp;
1563 #if NEED_RESPONSE
1564         struct fw_pkt *sfp;
1565 #endif
1566         struct sbp_softc *sbp;
1567         struct sbp_dev *sdev;
1568         struct sbp_ocb *ocb;
1569         struct sbp_login_res *login_res = NULL;
1570         struct sbp_status *sbp_status;
1571         struct sbp_target *target;
1572         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1573         u_int32_t addr;
1574 /*
1575         u_int32_t *ld;
1576         ld = xfer->recv.buf;
1577 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1578                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1579 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1580 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1581 */
1582         sbp = (struct sbp_softc *)xfer->sc;
1583         if (xfer->resp != 0){
1584                 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1585                 goto done0;
1586         }
1587         if (xfer->recv.payload == NULL){
1588                 printf("sbp_recv: xfer->recv.payload == NULL\n");
1589                 goto done0;
1590         }
1591         rfp = &xfer->recv.hdr;
1592         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1593                 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1594                 goto done0;
1595         }
1596         sbp_status = (struct sbp_status *)xfer->recv.payload;
1597         addr = rfp->mode.wreqb.dest_lo;
1598 SBP_DEBUG(2)
1599         printf("received address 0x%x\n", addr);
1600 END_DEBUG
1601         t = SBP_ADDR2TRG(addr);
1602         if (t >= SBP_NUM_TARGETS) {
1603                 device_printf(sbp->fd.dev,
1604                         "sbp_recv1: invalid target %d\n", t);
1605                 goto done0;
1606         }
1607         target = &sbp->targets[t];
1608         l = SBP_ADDR2LUN(addr);
1609         if (l >= target->num_lun || target->luns[l] == NULL) {
1610                 device_printf(sbp->fd.dev,
1611                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1612                 goto done0;
1613         }
1614         sdev = target->luns[l];
1615
1616         ocb = NULL;
1617         switch (sbp_status->src) {
1618         case 0:
1619         case 1:
1620                 /* check mgm_ocb_cur first */
1621                 ocb  = target->mgm_ocb_cur;
1622                 if (ocb != NULL) {
1623                         if (OCB_MATCH(ocb, sbp_status)) {
1624                                 callout_stop(&target->mgm_ocb_timeout);
1625                                 target->mgm_ocb_cur = NULL;
1626                                 break;
1627                         }
1628                 }
1629                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1630                 if (ocb == NULL) {
1631                         sbp_show_sdev_info(sdev, 2);
1632                         printf("No ocb(%x) on the queue\n",
1633                                         ntohl(sbp_status->orb_lo));
1634                 }
1635                 break;
1636         case 2:
1637                 /* unsolicit */
1638                 sbp_show_sdev_info(sdev, 2);
1639                 printf("unsolicit status received\n");
1640                 break;
1641         default:
1642                 sbp_show_sdev_info(sdev, 2);
1643                 printf("unknown sbp_status->src\n");
1644         }
1645
1646         status_valid0 = (sbp_status->src < 2
1647                         && sbp_status->resp == ORB_RES_CMPL
1648                         && sbp_status->dead == 0);
1649         status_valid = (status_valid0 && sbp_status->status == 0);
1650
1651         if (!status_valid0 || debug > 2){
1652                 int status;
1653 SBP_DEBUG(0)
1654                 sbp_show_sdev_info(sdev, 2);
1655                 printf("ORB status src:%x resp:%x dead:%x"
1656                                 " len:%x stat:%x orb:%x%08x\n",
1657                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1658                         sbp_status->len, sbp_status->status,
1659                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1660 END_DEBUG
1661                 sbp_show_sdev_info(sdev, 2);
1662                 status = sbp_status->status;
1663                 switch(sbp_status->resp) {
1664                 case 0:
1665                         if (status > MAX_ORB_STATUS0)
1666                                 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1667                         else
1668                                 printf("%s\n", orb_status0[status]);
1669                         break;
1670                 case 1:
1671                         printf("Obj: %s, Error: %s\n",
1672                                 orb_status1_object[(status>>6) & 3],
1673                                 orb_status1_serial_bus_error[status & 0xf]);
1674                         break;
1675                 case 2:
1676                         printf("Illegal request\n");
1677                         break;
1678                 case 3:
1679                         printf("Vendor dependent\n");
1680                         break;
1681                 default:
1682                         printf("unknown respose code %d\n", sbp_status->resp);
1683                 }
1684         }
1685
1686         /* we have to reset the fetch agent if it's dead */
1687         if (sbp_status->dead) {
1688                 if (sdev->path) {
1689                         xpt_freeze_devq(sdev->path, 1);
1690                         sdev->freeze ++;
1691                 }
1692                 reset_agent = 1;
1693         }
1694
1695         if (ocb == NULL)
1696                 goto done;
1697
1698         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1699         case ORB_FMT_NOP:
1700                 break;
1701         case ORB_FMT_VED:
1702                 break;
1703         case ORB_FMT_STD:
1704                 switch(ocb->flags) {
1705                 case OCB_ACT_MGM:
1706                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1707                         reset_agent = 0;
1708                         switch(orb_fun) {
1709                         case ORB_FUN_LGI:
1710                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1711                                 login_res = sdev->login;
1712                                 login_res->len = ntohs(login_res->len);
1713                                 login_res->id = ntohs(login_res->id);
1714                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1715                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1716                                 if (status_valid) {
1717 SBP_DEBUG(0)
1718 sbp_show_sdev_info(sdev, 2);
1719 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));
1720 END_DEBUG
1721                                         sbp_busy_timeout(sdev);
1722                                 } else {
1723                                         /* forgot logout? */
1724                                         sbp_show_sdev_info(sdev, 2);
1725                                         printf("login failed\n");
1726                                         sdev->status = SBP_DEV_RESET;
1727                                 }
1728                                 break;
1729                         case ORB_FUN_RCN:
1730                                 login_res = sdev->login;
1731                                 if (status_valid) {
1732 SBP_DEBUG(0)
1733 sbp_show_sdev_info(sdev, 2);
1734 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1735 END_DEBUG
1736 #if 1
1737                                         if (sdev->status == SBP_DEV_ATTACHED)
1738                                                 sbp_scan_dev(sdev);
1739                                         else
1740                                                 sbp_agent_reset(sdev);
1741 #else
1742                                         sdev->status = SBP_DEV_ATTACHED;
1743                                         sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1744 #endif
1745                                 } else {
1746                                         /* reconnection hold time exceed? */
1747 SBP_DEBUG(0)
1748                                         sbp_show_sdev_info(sdev, 2);
1749                                         printf("reconnect failed\n");
1750 END_DEBUG
1751                                         sbp_login(sdev);
1752                                 }
1753                                 break;
1754                         case ORB_FUN_LGO:
1755                                 sdev->status = SBP_DEV_RESET;
1756                                 break;
1757                         case ORB_FUN_RST:
1758                                 sbp_busy_timeout(sdev);
1759                                 break;
1760                         case ORB_FUN_LUR:
1761                         case ORB_FUN_ATA:
1762                         case ORB_FUN_ATS:
1763                                 sbp_agent_reset(sdev);
1764                                 break;
1765                         default:
1766                                 sbp_show_sdev_info(sdev, 2);
1767                                 printf("unknown function %d\n", orb_fun);
1768                                 break;
1769                         }
1770                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1771                         break;
1772                 case OCB_ACT_CMD:
1773                         sdev->timeout = 0;
1774                         if(ocb->ccb != NULL){
1775                                 union ccb *ccb;
1776 /*
1777                                 u_int32_t *ld;
1778                                 ld = ocb->ccb->csio.data_ptr;
1779                                 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1780                                         printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1781                                 else
1782                                         printf("ptr NULL\n");
1783 printf("len %d\n", sbp_status->len);
1784 */
1785                                 ccb = ocb->ccb;
1786                                 if(sbp_status->len > 1){
1787                                         sbp_scsi_status(sbp_status, ocb);
1788                                 }else{
1789                                         if(sbp_status->resp != ORB_RES_CMPL){
1790                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1791                                         }else{
1792                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1793                                         }
1794                                 }
1795                                 /* fix up inq data */
1796                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1797                                         sbp_fix_inq_data(ocb);
1798                                 xpt_done(ccb);
1799                         }
1800                         break;
1801                 default:
1802                         break;
1803                 }
1804         }
1805
1806         sbp_free_ocb(sdev, ocb);
1807 done:
1808         if (reset_agent)
1809                 sbp_agent_reset(sdev);
1810
1811 done0:
1812         xfer->recv.pay_len = SBP_RECV_LEN;
1813 /* The received packet is usually small enough to be stored within
1814  * the buffer. In that case, the controller return ack_complete and
1815  * no respose is necessary.
1816  *
1817  * XXX fwohci.c and firewire.c should inform event_code such as
1818  * ack_complete or ack_pending to upper driver.
1819  */
1820 #if NEED_RESPONSE
1821         xfer->send.off = 0;
1822         sfp = (struct fw_pkt *)xfer->send.buf;
1823         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1824         xfer->dst = sfp->mode.wres.dst;
1825         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1826         xfer->act.hand = sbp_loginres_callback;
1827         xfer->retry_req = fw_asybusy;
1828
1829         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1830         sfp->mode.wres.tcode = FWTCODE_WRES;
1831         sfp->mode.wres.rtcode = 0;
1832         sfp->mode.wres.pri = 0;
1833
1834         fw_asyreq(xfer->fc, -1, xfer);
1835 #else
1836         /* recycle */
1837         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1838 #endif
1839
1840         return;
1841
1842 }
1843
1844 static void
1845 sbp_recv(struct fw_xfer *xfer)
1846 {
1847         crit_enter();
1848         sbp_recv1(xfer);
1849         crit_exit();
1850 }
1851 /*
1852  * sbp_attach()
1853  */
1854 static int
1855 sbp_attach(device_t dev)
1856 {
1857         struct sbp_softc *sbp;
1858         struct cam_devq *devq;
1859         struct fw_xfer *xfer;
1860         int i, error;
1861
1862 SBP_DEBUG(0)
1863         printf("sbp_attach (cold=%d)\n", cold);
1864 END_DEBUG
1865
1866         if (cold)
1867                 sbp_cold ++;
1868         sbp = ((struct sbp_softc *)device_get_softc(dev));
1869         bzero(sbp, sizeof(struct sbp_softc));
1870         sbp->fd.dev = dev;
1871         sbp->fd.fc = device_get_ivars(dev);
1872
1873         if (max_speed < 0)
1874                 max_speed = sbp->fd.fc->speed;
1875
1876         error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1877                                 /* XXX shoud be 4 for sane backend? */
1878                                 /*alignment*/1,
1879                                 /*boundary*/0,
1880                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1881                                 /*highaddr*/BUS_SPACE_MAXADDR,
1882                                 /*filter*/NULL, /*filterarg*/NULL,
1883                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1884                                 /*maxsegsz*/SBP_SEG_MAX,
1885                                 /*flags*/BUS_DMA_ALLOCNOW,
1886 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1887                                 /*lockfunc*/busdma_lock_mutex,
1888                                 /*lockarg*/&Giant,
1889 #endif
1890                                 &sbp->dmat);
1891         if (error != 0) {
1892                 printf("sbp_attach: Could not allocate DMA tag "
1893                         "- error %d\n", error);
1894                         return (ENOMEM);
1895         }
1896
1897         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1898         if (devq == NULL)
1899                 return (ENXIO);
1900
1901         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1902                 sbp->targets[i].fwdev = NULL;
1903                 sbp->targets[i].luns = NULL;
1904         }
1905
1906         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1907                                  device_get_unit(dev),
1908                                  /*untagged*/ 1,
1909                                  /*tagged*/ SBP_QUEUE_LEN - 1,
1910                                  devq);
1911         cam_simq_release(devq);
1912         if (sbp->sim == NULL)
1913                 return (ENXIO);
1914
1915         if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1916                 goto fail;
1917
1918         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1919             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1920                 xpt_bus_deregister(cam_sim_path(sbp->sim));
1921                 goto fail;
1922         }
1923
1924         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1925         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1926         sbp->fwb.end = sbp->fwb.start + 0xffff;
1927         sbp->fwb.act_type = FWACT_XFER;
1928         /* pre-allocate xfer */
1929         STAILQ_INIT(&sbp->fwb.xferlist);
1930         for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1931                 xfer = fw_xfer_alloc_buf(M_SBP,
1932                         /* send */0,
1933                         /* recv */SBP_RECV_LEN);
1934                 xfer->act.hand = sbp_recv;
1935 #if NEED_RESPONSE
1936                 xfer->fc = sbp->fd.fc;
1937 #endif
1938                 xfer->sc = (caddr_t)sbp;
1939                 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1940         }
1941         fw_bindadd(sbp->fd.fc, &sbp->fwb);
1942
1943         sbp->fd.post_busreset = sbp_post_busreset;
1944         sbp->fd.post_explore = sbp_post_explore;
1945
1946         if (sbp->fd.fc->status != -1) {
1947                 crit_enter();
1948                 sbp_post_busreset((void *)sbp);
1949                 sbp_post_explore((void *)sbp);
1950                 crit_exit();
1951         }
1952         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1953
1954         return (0);
1955 fail:
1956         cam_sim_free(sbp->sim);
1957         return (ENXIO);
1958 }
1959
1960 static int
1961 sbp_logout_all(struct sbp_softc *sbp)
1962 {
1963         struct sbp_target *target;
1964         struct sbp_dev *sdev;
1965         int i, j;
1966
1967 SBP_DEBUG(0)
1968         printf("sbp_logout_all\n");
1969 END_DEBUG
1970         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1971                 target = &sbp->targets[i];
1972                 if (target->luns == NULL)
1973                         continue;
1974                 for (j = 0; j < target->num_lun; j++) {
1975                         sdev = target->luns[j];
1976                         if (sdev == NULL)
1977                                 continue;
1978                         callout_stop(&sdev->login_callout);
1979                         if (sdev->status >= SBP_DEV_TOATTACH &&
1980                                         sdev->status <= SBP_DEV_ATTACHED)
1981                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1982                 }
1983         }
1984
1985         return 0;
1986 }
1987
1988 static int
1989 sbp_shutdown(device_t dev)
1990 {
1991         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1992
1993         sbp_logout_all(sbp);
1994         return (0);
1995 }
1996
1997 static void
1998 sbp_free_sdev(struct sbp_dev *sdev)
1999 {
2000         int i;
2001
2002         if (sdev == NULL)
2003                 return;
2004         for (i = 0; i < SBP_QUEUE_LEN; i++)
2005                 bus_dmamap_destroy(sdev->target->sbp->dmat,
2006                     sdev->ocb[i].dmamap);
2007         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2008         free(sdev, M_SBP);
2009 }
2010
2011 static void
2012 sbp_free_target(struct sbp_target *target)
2013 {
2014         struct sbp_softc *sbp;
2015         struct fw_xfer *xfer, *next;
2016         int i;
2017
2018         if (target->luns == NULL)
2019                 return;
2020         callout_stop(&target->mgm_ocb_timeout);
2021         sbp = target->sbp;
2022         for (i = 0; i < target->num_lun; i++)
2023                 sbp_free_sdev(target->luns[i]);
2024
2025         for (xfer = STAILQ_FIRST(&target->xferlist);
2026                         xfer != NULL; xfer = next) {
2027                 next = STAILQ_NEXT(xfer, link);
2028                 fw_xfer_free_buf(xfer);
2029         }
2030         STAILQ_INIT(&target->xferlist);
2031         free(target->luns, M_SBP);
2032         target->num_lun = 0;;
2033         target->luns = NULL;
2034         target->fwdev = NULL;
2035 }
2036
2037 static int
2038 sbp_detach(device_t dev)
2039 {
2040         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2041         struct firewire_comm *fc = sbp->fd.fc;
2042         struct fw_xfer *xfer, *next;
2043         int i;
2044
2045 SBP_DEBUG(0)
2046         printf("sbp_detach\n");
2047 END_DEBUG
2048
2049         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2050                 sbp_cam_detach_target(&sbp->targets[i]);
2051         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2052         xpt_free_path(sbp->path);
2053         xpt_bus_deregister(cam_sim_path(sbp->sim));
2054         cam_sim_free(sbp->sim);
2055
2056         sbp_logout_all(sbp);
2057
2058         /* XXX wait for logout completion */
2059         tsleep(&i, FWPRI, "sbpdtc", hz/2);
2060
2061         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2062                 sbp_free_target(&sbp->targets[i]);
2063
2064         for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2065                                 xfer != NULL; xfer = next) {
2066                 next = STAILQ_NEXT(xfer, link);
2067                 fw_xfer_free_buf(xfer);
2068         }
2069         STAILQ_INIT(&sbp->fwb.xferlist);
2070         fw_bindremove(fc, &sbp->fwb);
2071
2072         bus_dma_tag_destroy(sbp->dmat);
2073
2074         return (0);
2075 }
2076
2077 static void
2078 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2079 {
2080         if (sdev == NULL)
2081                 return;
2082         if (sdev->status == SBP_DEV_DEAD)
2083                 return;
2084         if (sdev->status == SBP_DEV_RESET)
2085                 return;
2086         if (sdev->path) {
2087                 xpt_release_devq(sdev->path,
2088                                  sdev->freeze, TRUE);
2089                 sdev->freeze = 0;
2090                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2091                 xpt_free_path(sdev->path);
2092                 sdev->path = NULL;
2093         }
2094         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2095 }
2096
2097 static void
2098 sbp_cam_detach_target(struct sbp_target *target)
2099 {
2100         int i;
2101
2102         if (target->luns != NULL) {
2103 SBP_DEBUG(0)
2104                 printf("sbp_detach_target %d\n", target->target_id);
2105 END_DEBUG
2106                 callout_stop(&target->scan_callout);
2107                 for (i = 0; i < target->num_lun; i++)
2108                         sbp_cam_detach_sdev(target->luns[i]);
2109         }
2110 }
2111
2112 static void
2113 sbp_target_reset(struct sbp_dev *sdev, int method)
2114 {
2115         int i;
2116         struct sbp_target *target = sdev->target;
2117         struct sbp_dev *tsdev;
2118
2119         for (i = 0; i < target->num_lun; i++) {
2120                 tsdev = target->luns[i];
2121                 if (tsdev == NULL)
2122                         continue;
2123                 if (tsdev->status == SBP_DEV_DEAD)
2124                         continue;
2125                 if (tsdev->status == SBP_DEV_RESET)
2126                         continue;
2127                 xpt_freeze_devq(tsdev->path, 1);
2128                 tsdev->freeze ++;
2129                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2130                 if (method == 2)
2131                         tsdev->status = SBP_DEV_LOGIN;
2132         }
2133         switch(method) {
2134         case 1:
2135                 printf("target reset\n");
2136                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2137                 break;
2138         case 2:
2139                 printf("reset start\n");
2140                 sbp_reset_start(sdev);
2141                 break;
2142         }
2143
2144 }
2145
2146 static void
2147 sbp_mgm_timeout(void *arg)
2148 {
2149         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2150         struct sbp_dev *sdev = ocb->sdev;
2151         struct sbp_target *target = sdev->target;
2152
2153         sbp_show_sdev_info(sdev, 2);
2154         printf("request timeout(mgm orb:0x%08x) ... ",
2155             (u_int32_t)ocb->bus_addr);
2156         target->mgm_ocb_cur = NULL;
2157         sbp_free_ocb(sdev, ocb);
2158 #if 0
2159         /* XXX */
2160         printf("run next request\n");
2161         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2162 #endif
2163 #if 1
2164         printf("reset start\n");
2165         sbp_reset_start(sdev);
2166 #endif
2167 }
2168
2169 static void
2170 sbp_timeout(void *arg)
2171 {
2172         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2173         struct sbp_dev *sdev = ocb->sdev;
2174
2175         sbp_show_sdev_info(sdev, 2);
2176         printf("request timeout(cmd orb:0x%08x) ... ",
2177             (u_int32_t)ocb->bus_addr);
2178
2179         sdev->timeout ++;
2180         switch(sdev->timeout) {
2181         case 1:
2182                 printf("agent reset\n");
2183                 xpt_freeze_devq(sdev->path, 1);
2184                 sdev->freeze ++;
2185                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2186                 sbp_agent_reset(sdev);
2187                 break;
2188         case 2:
2189         case 3:
2190                 sbp_target_reset(sdev, sdev->timeout - 1);
2191                 break;
2192 #if 0
2193         default:
2194                 /* XXX give up */
2195                 sbp_cam_detach_target(target);
2196                 if (target->luns != NULL)
2197                         free(target->luns, M_SBP);
2198                 target->num_lun = 0;;
2199                 target->luns = NULL;
2200                 target->fwdev = NULL;
2201 #endif
2202         }
2203 }
2204
2205 static void
2206 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2207 {
2208
2209         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2210         struct sbp_target *target = NULL;
2211         struct sbp_dev *sdev = NULL;
2212
2213         /* target:lun -> sdev mapping */
2214         if (sbp != NULL
2215                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2216                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2217                 target = &sbp->targets[ccb->ccb_h.target_id];
2218                 if (target->fwdev != NULL
2219                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2220                                 && ccb->ccb_h.target_lun < target->num_lun) {
2221                         sdev = target->luns[ccb->ccb_h.target_lun];
2222                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2223                                 sdev->status != SBP_DEV_PROBE)
2224                                 sdev = NULL;
2225                 }
2226         }
2227
2228 SBP_DEBUG(1)
2229         if (sdev == NULL)
2230                 printf("invalid target %d lun %d\n",
2231                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2232 END_DEBUG
2233
2234         switch (ccb->ccb_h.func_code) {
2235         case XPT_SCSI_IO:
2236         case XPT_RESET_DEV:
2237         case XPT_GET_TRAN_SETTINGS:
2238         case XPT_SET_TRAN_SETTINGS:
2239         case XPT_CALC_GEOMETRY:
2240                 if (sdev == NULL) {
2241 SBP_DEBUG(1)
2242                         printf("%s:%d:%d:func_code 0x%04x: "
2243                                 "Invalid target (target needed)\n",
2244                                 device_get_nameunit(sbp->fd.dev),
2245                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2246                                 ccb->ccb_h.func_code);
2247 END_DEBUG
2248
2249                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2250                         xpt_done(ccb);
2251                         return;
2252                 }
2253                 break;
2254         case XPT_PATH_INQ:
2255         case XPT_NOOP:
2256                 /* The opcodes sometimes aimed at a target (sc is valid),
2257                  * sometimes aimed at the SIM (sc is invalid and target is
2258                  * CAM_TARGET_WILDCARD)
2259                  */
2260                 if (sbp == NULL &&
2261                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2262 SBP_DEBUG(0)
2263                         printf("%s:%d:%d func_code 0x%04x: "
2264                                 "Invalid target (no wildcard)\n",
2265                                 device_get_nameunit(sbp->fd.dev),
2266                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2267                                 ccb->ccb_h.func_code);
2268 END_DEBUG
2269                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2270                         xpt_done(ccb);
2271                         return;
2272                 }
2273                 break;
2274         default:
2275                 /* XXX Hm, we should check the input parameters */
2276                 break;
2277         }
2278
2279         switch (ccb->ccb_h.func_code) {
2280         case XPT_SCSI_IO:
2281         {
2282                 struct ccb_scsiio *csio;
2283                 struct sbp_ocb *ocb;
2284                 int speed;
2285                 void *cdb;
2286
2287                 csio = &ccb->csio;
2288
2289 SBP_DEBUG(2)
2290                 printf("%s:%d:%d XPT_SCSI_IO: "
2291                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2292                         ", flags: 0x%02x, "
2293                         "%db cmd/%db data/%db sense\n",
2294                         device_get_nameunit(sbp->fd.dev),
2295                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2296                         csio->cdb_io.cdb_bytes[0],
2297                         csio->cdb_io.cdb_bytes[1],
2298                         csio->cdb_io.cdb_bytes[2],
2299                         csio->cdb_io.cdb_bytes[3],
2300                         csio->cdb_io.cdb_bytes[4],
2301                         csio->cdb_io.cdb_bytes[5],
2302                         csio->cdb_io.cdb_bytes[6],
2303                         csio->cdb_io.cdb_bytes[7],
2304                         csio->cdb_io.cdb_bytes[8],
2305                         csio->cdb_io.cdb_bytes[9],
2306                         ccb->ccb_h.flags & CAM_DIR_MASK,
2307                         csio->cdb_len, csio->dxfer_len,
2308                         csio->sense_len);
2309 END_DEBUG
2310                 if(sdev == NULL){
2311                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2312                         xpt_done(ccb);
2313                         return;
2314                 }
2315 #if 0
2316                 /* if we are in probe stage, pass only probe commands */
2317                 if (sdev->status == SBP_DEV_PROBE) {
2318                         char *name;
2319                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2320                         printf("probe stage, periph name: %s\n", name);
2321                         if (strcmp(name, "probe") != 0) {
2322                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2323                                 xpt_done(ccb);
2324                                 return;
2325                         }
2326                 }
2327 #endif
2328                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2329                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2330                         xpt_done(ccb);
2331                         return;
2332                 }
2333
2334                 ocb->flags = OCB_ACT_CMD;
2335                 ocb->sdev = sdev;
2336                 ocb->ccb = ccb;
2337                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2338                 ocb->orb[0] = htonl(1 << 31);
2339                 ocb->orb[1] = 0;
2340                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2341                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2342                 speed = min(target->fwdev->speed, max_speed);
2343                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2344                                                 | ORB_CMD_MAXP(speed + 7));
2345                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2346                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2347                 }
2348
2349                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2350                         printf("sbp: CAM_SCATTER_VALID\n");
2351                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2352                         printf("sbp: CAM_DATA_PHYS\n");
2353
2354                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2355                         cdb = (void *)csio->cdb_io.cdb_ptr;
2356                 else
2357                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2358                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2359 /*
2360 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2361 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2362 */
2363                 if (ccb->csio.dxfer_len > 0) {
2364                         int error;
2365
2366                         crit_enter();
2367                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2368                                         /*dma map*/ocb->dmamap,
2369                                         ccb->csio.data_ptr,
2370                                         ccb->csio.dxfer_len,
2371                                         sbp_execute_ocb,
2372                                         ocb,
2373                                         /*flags*/0);
2374                         crit_exit();
2375                         if (error)
2376                                 printf("sbp: bus_dmamap_load error %d\n", error);
2377                 } else
2378                         sbp_execute_ocb(ocb, NULL, 0, 0);
2379                 break;
2380         }
2381         case XPT_CALC_GEOMETRY:
2382         {
2383                 struct ccb_calc_geometry *ccg;
2384 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2385                 u_int32_t size_mb;
2386                 u_int32_t secs_per_cylinder;
2387                 int extended = 1;
2388 #endif
2389
2390                 ccg = &ccb->ccg;
2391                 if (ccg->block_size == 0) {
2392                         printf("sbp_action1: block_size is 0.\n");
2393                         ccb->ccb_h.status = CAM_REQ_INVALID;
2394                         xpt_done(ccb);
2395                         break;
2396                 }
2397 SBP_DEBUG(1)
2398                 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2399 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2400                         "Volume size = %d\n",
2401 #else
2402                         "Volume size = %jd\n",
2403 #endif
2404                         device_get_nameunit(sbp->fd.dev),
2405                         cam_sim_path(sbp->sim),
2406                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2407 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2408                         (uintmax_t)
2409 #endif
2410                                 ccg->volume_size);
2411 END_DEBUG
2412
2413 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2414                 size_mb = ccg->volume_size
2415                         / ((1024L * 1024L) / ccg->block_size);
2416
2417                 if (size_mb > 1024 && extended) {
2418                         ccg->heads = 255;
2419                         ccg->secs_per_track = 63;
2420                 } else {
2421                         ccg->heads = 64;
2422                         ccg->secs_per_track = 32;
2423                 }
2424                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2425                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2426                 ccb->ccb_h.status = CAM_REQ_CMP;
2427 #else
2428                 cam_calc_geometry(ccg, /*extended*/1);
2429 #endif
2430                 xpt_done(ccb);
2431                 break;
2432         }
2433         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
2434         {
2435
2436 SBP_DEBUG(1)
2437                 printf("%s:%d:XPT_RESET_BUS: \n",
2438                         device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2439 END_DEBUG
2440
2441                 ccb->ccb_h.status = CAM_REQ_INVALID;
2442                 xpt_done(ccb);
2443                 break;
2444         }
2445         case XPT_PATH_INQ:              /* Path routing inquiry */
2446         {
2447                 struct ccb_pathinq *cpi = &ccb->cpi;
2448
2449 SBP_DEBUG(1)
2450                 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2451                         device_get_nameunit(sbp->fd.dev),
2452                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2453 END_DEBUG
2454                 cpi->version_num = 1; /* XXX??? */
2455                 cpi->hba_inquiry = PI_TAG_ABLE;
2456                 cpi->target_sprt = 0;
2457                 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2458                 cpi->hba_eng_cnt = 0;
2459                 cpi->max_target = SBP_NUM_TARGETS - 1;
2460                 cpi->max_lun = SBP_NUM_LUNS - 1;
2461                 cpi->initiator_id = SBP_INITIATOR;
2462                 cpi->bus_id = sim->bus_id;
2463                 cpi->base_transfer_speed = 400 * 1000 / 8;
2464                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2465                 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2466                 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2467                 cpi->unit_number = sim->unit_number;
2468
2469                 cpi->ccb_h.status = CAM_REQ_CMP;
2470                 xpt_done(ccb);
2471                 break;
2472         }
2473         case XPT_GET_TRAN_SETTINGS:
2474         {
2475                 struct ccb_trans_settings *cts = &ccb->cts;
2476 SBP_DEBUG(1)
2477                 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2478                         device_get_nameunit(sbp->fd.dev),
2479                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2480 END_DEBUG
2481                 /* Enable disconnect and tagged queuing */
2482                 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
2483                 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB;
2484
2485                 cts->ccb_h.status = CAM_REQ_CMP;
2486                 xpt_done(ccb);
2487                 break;
2488         }
2489         case XPT_ABORT:
2490                 ccb->ccb_h.status = CAM_UA_ABORT;
2491                 xpt_done(ccb);
2492                 break;
2493         case XPT_SET_TRAN_SETTINGS:
2494                 /* XXX */
2495         default:
2496                 ccb->ccb_h.status = CAM_REQ_INVALID;
2497                 xpt_done(ccb);
2498                 break;
2499         }
2500         return;
2501 }
2502
2503 static void
2504 sbp_action(struct cam_sim *sim, union ccb *ccb)
2505 {
2506         crit_enter();
2507         sbp_action1(sim, ccb);
2508         crit_exit();
2509 }
2510
2511 static void
2512 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2513 {
2514         int i;
2515         struct sbp_ocb *ocb;
2516         struct sbp_ocb *prev;
2517         bus_dma_segment_t *s;
2518
2519         if (error)
2520                 printf("sbp_execute_ocb: error=%d\n", error);
2521
2522         ocb = (struct sbp_ocb *)arg;
2523
2524 SBP_DEBUG(2)
2525         printf("sbp_execute_ocb: seg %d", seg);
2526         for (i = 0; i < seg; i++)
2527 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2528                 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2529 #else
2530                 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2531                                         (uintmax_t)segments[i].ds_len);
2532 #endif
2533         printf("\n");
2534 END_DEBUG
2535
2536         if (seg == 1) {
2537                 /* direct pointer */
2538                 s = &segments[0];
2539                 if (s->ds_len > SBP_SEG_MAX)
2540                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2541                 ocb->orb[3] = htonl(s->ds_addr);
2542                 ocb->orb[4] |= htonl(s->ds_len);
2543         } else if(seg > 1) {
2544                 /* page table */
2545                 for (i = 0; i < seg; i++) {
2546                         s = &segments[i];
2547 SBP_DEBUG(0)
2548                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2549                         if (s->ds_len < 16)
2550                                 printf("sbp_execute_ocb: warning, "
2551 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2552                                         "segment length(%d) is less than 16."
2553 #else
2554                                         "segment length(%zd) is less than 16."
2555 #endif
2556                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2557 END_DEBUG
2558                         if (s->ds_len > SBP_SEG_MAX)
2559                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2560                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2561                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2562                 }
2563                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2564         }
2565
2566         if (seg > 0)
2567                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2568                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2569                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2570         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2571         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2572         if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2573                 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2574                 sbp_orb_pointer(ocb->sdev, ocb);
2575         }
2576 }
2577
2578 static void
2579 sbp_poll(struct cam_sim *sim)
2580 {
2581         struct sbp_softc *sbp;
2582         struct firewire_comm *fc;
2583
2584         sbp = (struct sbp_softc *)sim->softc;
2585         fc = sbp->fd.fc;
2586
2587         fc->poll(fc, 0, -1);
2588
2589         return;
2590 }
2591
2592 static struct sbp_ocb *
2593 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2594 {
2595         struct sbp_ocb *ocb;
2596         struct sbp_ocb *next;
2597         int order = 0;
2598         int flags;
2599
2600         crit_enter();
2601
2602 SBP_DEBUG(1)
2603         sbp_show_sdev_info(sdev, 2);
2604         printf("%s: 0x%08x src %d\n",
2605             __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2606 END_DEBUG
2607         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2608                 next = STAILQ_NEXT(ocb, ocb);
2609                 flags = ocb->flags;
2610                 if (OCB_MATCH(ocb, sbp_status)) {
2611                         /* found */
2612                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2613                         if (ocb->ccb != NULL)
2614                                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2615                         if (ntohl(ocb->orb[4]) & 0xffff) {
2616                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2617                                         ocb->dmamap,
2618                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2619                                         BUS_DMASYNC_POSTREAD :
2620                                         BUS_DMASYNC_POSTWRITE);
2621                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2622                                         ocb->dmamap);
2623                         }
2624                         if (sbp_status->src == SRC_NO_NEXT) {
2625                                 if (next != NULL)
2626                                         sbp_orb_pointer(sdev, next);
2627                                 else if (order > 0) {
2628                                         /*
2629                                          * Unordered execution
2630                                          * We need to send pointer for
2631                                          * next ORB
2632                                          */
2633                                         sdev->flags |= ORB_LINK_DEAD;
2634                                 }
2635                         }
2636                         break;
2637                 } else
2638                         order ++;
2639         }
2640         crit_exit();
2641 SBP_DEBUG(0)
2642         if (ocb && order > 0) {
2643                 sbp_show_sdev_info(sdev, 2);
2644                 printf("unordered execution order:%d\n", order);
2645         }
2646 END_DEBUG
2647         return (ocb);
2648 }
2649
2650 static struct sbp_ocb *
2651 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2652 {
2653         struct sbp_ocb *prev;
2654
2655         crit_enter();
2656
2657 SBP_DEBUG(1)
2658         sbp_show_sdev_info(sdev, 2);
2659 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2660         printf("%s: 0x%08x\n", __func__, ocb->bus_addr);
2661 #else
2662         printf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2663 #endif
2664 END_DEBUG
2665         prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2666         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2667
2668         if (ocb->ccb != NULL)
2669                 callout_reset(&ocb->ccb->ccb_h.timeout_ch,
2670                     (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb);
2671
2672         if (prev != NULL) {
2673 SBP_DEBUG(2)
2674 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2675                 printf("linking chain 0x%x -> 0x%x\n",
2676                     prev->bus_addr, ocb->bus_addr);
2677 #else
2678                 printf("linking chain 0x%jx -> 0x%jx\n",
2679                     (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2680 #endif
2681 END_DEBUG
2682                 prev->orb[1] = htonl(ocb->bus_addr);
2683                 prev->orb[0] = 0;
2684         }
2685         crit_exit();
2686
2687         return prev;
2688 }
2689
2690 static struct sbp_ocb *
2691 sbp_get_ocb(struct sbp_dev *sdev)
2692 {
2693         struct sbp_ocb *ocb;
2694
2695         crit_enter();
2696         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2697         if (ocb == NULL) {
2698                 printf("ocb shortage!!!\n");
2699                 return NULL;
2700         }
2701         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2702         crit_exit();
2703         ocb->ccb = NULL;
2704         return (ocb);
2705 }
2706
2707 static void
2708 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2709 {
2710         ocb->flags = 0;
2711         ocb->ccb = NULL;
2712         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2713 }
2714
2715 static void
2716 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2717 {
2718         struct sbp_dev *sdev;
2719
2720         sdev = ocb->sdev;
2721 SBP_DEBUG(0)
2722         sbp_show_sdev_info(sdev, 2);
2723 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2724         printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2725 #else
2726         printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2727 #endif
2728 END_DEBUG
2729 SBP_DEBUG(1)
2730         if (ocb->ccb != NULL)
2731                 sbp_print_scsi_cmd(ocb);
2732 END_DEBUG
2733         if (ntohl(ocb->orb[4]) & 0xffff) {
2734                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2735                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2736                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2737                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2738         }
2739         if (ocb->ccb != NULL) {
2740                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2741                 ocb->ccb->ccb_h.status = status;
2742                 xpt_done(ocb->ccb);
2743         }
2744         sbp_free_ocb(sdev, ocb);
2745 }
2746
2747 static void
2748 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2749 {
2750         struct sbp_ocb *ocb, *next;
2751         STAILQ_HEAD(, sbp_ocb) temp;
2752
2753         crit_enter();
2754         bcopy(&sdev->ocbs, &temp, sizeof(temp));
2755         STAILQ_INIT(&sdev->ocbs);
2756         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2757                 next = STAILQ_NEXT(ocb, ocb);
2758                 sbp_abort_ocb(ocb, status);
2759         }
2760         crit_exit();
2761 }
2762
2763 static devclass_t sbp_devclass;
2764
2765 static device_method_t sbp_methods[] = {
2766         /* device interface */
2767         DEVMETHOD(device_identify,      sbp_identify),
2768         DEVMETHOD(device_probe,         sbp_probe),
2769         DEVMETHOD(device_attach,        sbp_attach),
2770         DEVMETHOD(device_detach,        sbp_detach),
2771         DEVMETHOD(device_shutdown,      sbp_shutdown),
2772
2773         { 0, 0 }
2774 };
2775
2776 static driver_t sbp_driver = {
2777         "sbp",
2778         sbp_methods,
2779         sizeof(struct sbp_softc),
2780 };
2781
2782 DECLARE_DUMMY_MODULE(sbp);
2783 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2784 MODULE_VERSION(sbp, 1);
2785 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2786 MODULE_DEPEND(sbp, cam, 1, 1, 1);