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 1.20 2006/10/25 20:55:54 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 <sys/malloc.h>
  47
  48 #include <sys/devicestat.h>     /* for struct devstat */
  49 #include <sys/thread2.h>
  50
  51 #include <bus/cam/cam.h>
  52 #include <bus/cam/cam_ccb.h>
  53 #include <bus/cam/cam_sim.h>
  54 #include <bus/cam/cam_xpt_sim.h>
  55 #include <bus/cam/cam_debug.h>
  56 #include <bus/cam/cam_periph.h>
  57 #include <bus/cam/scsi/scsi_all.h>
  58
  59 #include <bus/firewire/firewire.h>
  60 #include <bus/firewire/firewirereg.h>
  61 #include <bus/firewire/fwdma.h>
  62 #include <bus/firewire/iec13213.h>
  63 #include "sbp.h"
  64
  65 #define ccb_sdev_ptr    spriv_ptr0
  66 #define ccb_sbp_ptr     spriv_ptr1
  67
  68 #define SBP_NUM_TARGETS 8 /* MAX 64 */
  69 /*
  70  * Scan_bus doesn't work for more than 8 LUNs
  71  * because of CAM_SCSI2_MAXLUN in cam_xpt.c
  72  */
  73 #define SBP_NUM_LUNS 64
  74 #define SBP_DMA_SIZE PAGE_SIZE
  75 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
  76 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
  77 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
  78
  79 /*
  80  * STATUS FIFO addressing
  81  *   bit
  82  * -----------------------
  83  *  0- 1( 2): 0 (alingment)
  84  *  2- 7( 6): target
  85  *  8-15( 8): lun
  86  * 16-31( 8): reserved
  87  * 32-47(16): SBP_BIND_HI
  88  * 48-64(16): bus_id, node_id
  89  */
  90 #define SBP_BIND_HI 0x1
  91 #define SBP_DEV2ADDR(t, l) \
  92         (((u_int64_t)SBP_BIND_HI << 32) \
  93         | (((l) & 0xff) << 8) \
  94         | (((t) & 0x3f) << 2))
  95 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
  96 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
  97 #define SBP_INITIATOR 7
  98
  99 static char *orb_fun_name[] = {
 100         ORB_FUN_NAMES
 101 };
 102
 103 static int debug = 0;
 104 static int auto_login = 1;
 105 static int max_speed = -1;
 106 static int sbp_cold = 1;
 107 static int ex_login = 1;
 108 static int login_delay = 1000;  /* msec */
 109 static int scan_delay = 500;    /* msec */
 110 static int sbp_tags = 0;
 111
 112 SYSCTL_DECL(_hw_firewire);
 113 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 114 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 115         "SBP debug flag");
 116 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 117         "SBP perform login automatically");
 118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 119         "SBP transfer max speed");
 120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 121         &ex_login, 0, "SBP transfer max speed");
 122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 123         &login_delay, 0, "SBP login delay in msec");
 124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 125         &scan_delay, 0, "SBP scan delay in msec");
 126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 127         "SBP tagged queuing support");
 128
 129 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 130 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 131 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 132 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 133 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 134 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 135
 136 #define NEED_RESPONSE 0
 137
 138 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 139 #ifdef __sparc64__ /* iommu */
 140 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
 141 #else
 142 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
 143 #endif
 144 struct sbp_ocb {
 145         STAILQ_ENTRY(sbp_ocb)   ocb;
 146         union ccb       *ccb;
 147         bus_addr_t      bus_addr;
 148         u_int32_t       orb[8];
 149 #define IND_PTR_OFFSET  (8*sizeof(u_int32_t))
 150         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 151         struct sbp_dev  *sdev;
 152         int             flags; /* XXX should be removed */
 153         bus_dmamap_t    dmamap;
 154 };
 155
 156 #define OCB_ACT_MGM 0
 157 #define OCB_ACT_CMD 1
 158 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 159
 160 struct sbp_dev{
 161 #define SBP_DEV_RESET           0       /* accept login */
 162 #define SBP_DEV_LOGIN           1       /* to login */
 163 #if 0
 164 #define SBP_DEV_RECONN          2       /* to reconnect */
 165 #endif
 166 #define SBP_DEV_TOATTACH        3       /* to attach */
 167 #define SBP_DEV_PROBE           4       /* scan lun */
 168 #define SBP_DEV_ATTACHED        5       /* in operation */
 169 #define SBP_DEV_DEAD            6       /* unavailable unit */
 170 #define SBP_DEV_RETRY           7       /* unavailable unit */
 171         u_int8_t status:4,
 172                  timeout:4;
 173         u_int8_t type;
 174         u_int16_t lun_id;
 175         u_int16_t freeze;
 176 #define ORB_LINK_DEAD           (1 << 0)
 177 #define VALID_LUN               (1 << 1)
 178 #define ORB_POINTER_ACTIVE      (1 << 2)
 179 #define ORB_POINTER_NEED        (1 << 3)
 180         u_int16_t flags;
 181         struct cam_path *path;
 182         struct sbp_target *target;
 183         struct fwdma_alloc dma;
 184         struct sbp_login_res *login;
 185         struct callout login_callout;
 186         struct sbp_ocb *ocb;
 187         STAILQ_HEAD(, sbp_ocb) ocbs;
 188         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 189         char vendor[32];
 190         char product[32];
 191         char revision[10];
 192 };
 193
 194 struct sbp_target {
 195         int target_id;
 196         int num_lun;
 197         struct sbp_dev  **luns;
 198         struct sbp_softc *sbp;
 199         struct fw_device *fwdev;
 200         u_int32_t mgm_hi, mgm_lo;
 201         struct sbp_ocb *mgm_ocb_cur;
 202         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 203         struct callout mgm_ocb_timeout;
 204         struct callout scan_callout;
 205         STAILQ_HEAD(, fw_xfer) xferlist;
 206         int n_xfer;
 207 };
 208
 209 struct sbp_softc {
 210         struct firewire_dev_comm fd;
 211         struct cam_sim  *sim;
 212         struct cam_path  *path;
 213         struct sbp_target targets[SBP_NUM_TARGETS];
 214         struct fw_bind fwb;
 215         bus_dma_tag_t   dmat;
 216         struct timeval last_busreset;
 217 #define SIMQ_FREEZED 1
 218         int flags;
 219 };
 220
 221 static void sbp_post_explore (void *);
 222 static void sbp_recv (struct fw_xfer *);
 223 static void sbp_mgm_callback (struct fw_xfer *);
 224 #if 0
 225 static void sbp_cmd_callback (struct fw_xfer *);
 226 #endif
 227 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 228 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 229 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 230 static void sbp_abort_ocb (struct sbp_ocb *, int);
 231 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 232 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 233 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 234 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 235 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 236 static void sbp_cam_detach_sdev(struct sbp_dev *);
 237 static void sbp_free_sdev(struct sbp_dev *);
 238 static void sbp_cam_detach_target (struct sbp_target *);
 239 static void sbp_free_target (struct sbp_target *);
 240 static void sbp_mgm_timeout (void *arg);
 241 static void sbp_timeout (void *arg);
 242 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 243
 244 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 245
 246 /* cam related functions */
 247 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 248 static void     sbp_poll(struct cam_sim *sim);
 249 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 250 static void     sbp_cam_scan_target(void *arg);
 251
 252 static char *orb_status0[] = {
 253         /* 0 */ "No additional information to report",
 254         /* 1 */ "Request type not supported",
 255         /* 2 */ "Speed not supported",
 256         /* 3 */ "Page size not supported",
 257         /* 4 */ "Access denied",
 258         /* 5 */ "Logical unit not supported",
 259         /* 6 */ "Maximum payload too small",
 260         /* 7 */ "Reserved for future standardization",
 261         /* 8 */ "Resources unavailable",
 262         /* 9 */ "Function rejected",
 263         /* A */ "Login ID not recognized",
 264         /* B */ "Dummy ORB completed",
 265         /* C */ "Request aborted",
 266         /* FF */ "Unspecified error"
 267 #define MAX_ORB_STATUS0 0xd
 268 };
 269
 270 static char *orb_status1_object[] = {
 271         /* 0 */ "Operation request block (ORB)",
 272         /* 1 */ "Data buffer",
 273         /* 2 */ "Page table",
 274         /* 3 */ "Unable to specify"
 275 };
 276
 277 static char *orb_status1_serial_bus_error[] = {
 278         /* 0 */ "Missing acknowledge",
 279         /* 1 */ "Reserved; not to be used",
 280         /* 2 */ "Time-out error",
 281         /* 3 */ "Reserved; not to be used",
 282         /* 4 */ "Busy retry limit exceeded(X)",
 283         /* 5 */ "Busy retry limit exceeded(A)",
 284         /* 6 */ "Busy retry limit exceeded(B)",
 285         /* 7 */ "Reserved for future standardization",
 286         /* 8 */ "Reserved for future standardization",
 287         /* 9 */ "Reserved for future standardization",
 288         /* A */ "Reserved for future standardization",
 289         /* B */ "Tardy retry limit exceeded",
 290         /* C */ "Conflict error",
 291         /* D */ "Data error",
 292         /* E */ "Type error",
 293         /* F */ "Address error"
 294 };
 295
 296 /*
 297  * sbp_probe()
 298  */
 299 static int
 300 sbp_probe(device_t dev)
 301 {
 302         device_t pa;
 303
 304 SBP_DEBUG(0)
 305         printf("sbp_probe\n");
 306 END_DEBUG
 307
 308         pa = device_get_parent(dev);
 309         if(device_get_unit(dev) != device_get_unit(pa)){
 310                 return(ENXIO);
 311         }
 312
 313         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 314
 315         if (bootverbose)
 316                 debug = bootverbose;
 317         return (0);
 318 }
 319
 320 static void
 321 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
 322 {
 323         struct fw_device *fwdev;
 324
 325         printf("%s:%d:%d ",
 326                 device_get_nameunit(sdev->target->sbp->fd.dev),
 327                 sdev->target->target_id,
 328                 sdev->lun_id
 329         );
 330         if (new == 2) {
 331                 return;
 332         }
 333         fwdev = sdev->target->fwdev;
 334         printf("ordered:%d type:%d EUI:%08x%08x node:%d "
 335                 "speed:%d maxrec:%d",
 336                 (sdev->type & 0x40) >> 6,
 337                 (sdev->type & 0x1f),
 338                 fwdev->eui.hi,
 339                 fwdev->eui.lo,
 340                 fwdev->dst,
 341                 fwdev->speed,
 342                 fwdev->maxrec
 343         );
 344         if (new)
 345                 printf(" new!\n");
 346         else
 347                 printf("\n");
 348         sbp_show_sdev_info(sdev, 2);
 349         printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
 350 }
 351
 352 static struct {
 353         int bus;
 354         int target;
 355         struct fw_eui64 eui;
 356 } wired[] = {
 357         /* Bus  Target  EUI64 */
 358 #if 0
 359         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 360         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 361         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 362 #endif
 363         {-1,    -1,     {0,0}}
 364 };
 365
 366 static int
 367 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 368 {
 369         int bus, i, target=-1;
 370         char w[SBP_NUM_TARGETS];
 371
 372         bzero(w, sizeof(w));
 373         bus = device_get_unit(sbp->fd.dev);
 374
 375         /* XXX wired-down configuration should be gotten from
 376                                         tunable or device hint */
 377         for (i = 0; wired[i].bus >= 0; i ++) {
 378                 if (wired[i].bus == bus) {
 379                         w[wired[i].target] = 1;
 380                         if (wired[i].eui.hi == fwdev->eui.hi &&
 381                                         wired[i].eui.lo == fwdev->eui.lo)
 382                                 target = wired[i].target;
 383                 }
 384         }
 385         if (target >= 0) {
 386                 if(target < SBP_NUM_TARGETS &&
 387                                 sbp->targets[target].fwdev == NULL)
 388                         return(target);
 389                 device_printf(sbp->fd.dev,
 390                         "target %d is not free for %08x:%08x\n",
 391                         target, fwdev->eui.hi, fwdev->eui.lo);
 392                 target = -1;
 393         }
 394         /* non-wired target */
 395         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 396                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 397                         target = i;
 398                         break;
 399                 }
 400
 401         return target;
 402 }
 403
 404 static void
 405 sbp_alloc_lun(struct sbp_target *target)
 406 {
 407         struct crom_context cc;
 408         struct csrreg *reg;
 409         struct sbp_dev *sdev, **newluns;
 410         struct sbp_softc *sbp;
 411         int maxlun, lun, i;
 412
 413         sbp = target->sbp;
 414         crom_init_context(&cc, target->fwdev->csrrom);
 415         /* XXX shoud parse appropriate unit directories only */
 416         maxlun = -1;
 417         while (cc.depth >= 0) {
 418                 reg = crom_search_key(&cc, CROM_LUN);
 419                 if (reg == NULL)
 420                         break;
 421                 lun = reg->val & 0xffff;
 422 SBP_DEBUG(0)
 423                 printf("target %d lun %d found\n", target->target_id, lun);
 424 END_DEBUG
 425                 if (maxlun < lun)
 426                         maxlun = lun;
 427                 crom_next(&cc);
 428         }
 429         if (maxlun < 0)
 430                 printf("%s:%d no LUN found\n",
 431                     device_get_nameunit(target->sbp->fd.dev),
 432                     target->target_id);
 433
 434         maxlun ++;
 435         if (maxlun >= SBP_NUM_LUNS)
 436                 maxlun = SBP_NUM_LUNS;
 437
 438         /* Invalidiate stale devices */
 439         for (lun = 0; lun < target->num_lun; lun ++) {
 440                 sdev = target->luns[lun];
 441                 if (sdev == NULL)
 442                         continue;
 443                 sdev->flags &= ~VALID_LUN;
 444                 if (lun >= maxlun) {
 445                         /* lost device */
 446                         sbp_cam_detach_sdev(sdev);
 447                         sbp_free_sdev(sdev);
 448                 }
 449         }
 450
 451         /* Reallocate */
 452         if (maxlun != target->num_lun) {
 453                 /*
 454                  * note: krealloc() does not support M_ZERO.  We must zero
 455                  * the extended region manually.
 456                  */
 457                 newluns = krealloc(target->luns,
 458                                 sizeof(struct sbp_dev *) * maxlun,
 459                                 M_SBP, M_WAITOK);
 460
 461                 if (maxlun > target->num_lun) {
 462                         bzero(&newluns[target->num_lun],
 463                             sizeof(struct sbp_dev *) *
 464                              (maxlun - target->num_lun));
 465                 }
 466                 target->luns = newluns;
 467                 target->num_lun = maxlun;
 468         }
 469
 470         crom_init_context(&cc, target->fwdev->csrrom);
 471         while (cc.depth >= 0) {
 472                 int new = 0;
 473
 474                 reg = crom_search_key(&cc, CROM_LUN);
 475                 if (reg == NULL)
 476                         break;
 477                 lun = reg->val & 0xffff;
 478                 if (lun >= SBP_NUM_LUNS) {
 479                         printf("too large lun %d\n", lun);
 480                         goto next;
 481                 }
 482
 483                 sdev = target->luns[lun];
 484                 if (sdev == NULL) {
 485                         sdev = kmalloc(sizeof(struct sbp_dev),
 486                             M_SBP, M_WAITOK | M_ZERO);
 487                         target->luns[lun] = sdev;
 488                         sdev->lun_id = lun;
 489                         sdev->target = target;
 490                         STAILQ_INIT(&sdev->ocbs);
 491                         CALLOUT_INIT(&sdev->login_callout);
 492                         sdev->status = SBP_DEV_RESET;
 493                         new = 1;
 494                 }
 495                 sdev->flags |= VALID_LUN;
 496                 sdev->type = (reg->val & 0xff0000) >> 16;
 497
 498                 if (new == 0)
 499                         goto next;
 500
 501                 fwdma_malloc(sbp->fd.fc,
 502                         /* alignment */ sizeof(u_int32_t),
 503                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 504                 if (sdev->dma.v_addr == NULL) {
 505                         printf("%s: dma space allocation failed\n",
 506                                                         __func__);
 507                         kfree(sdev, M_SBP);
 508                         target->luns[lun] = NULL;
 509                         goto next;
 510                 }
 511                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 512                 sdev->ocb = (struct sbp_ocb *)
 513                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 514                 bzero((char *)sdev->ocb,
 515                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 516
 517                 STAILQ_INIT(&sdev->free_ocbs);
 518                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 519                         struct sbp_ocb *ocb;
 520                         ocb = &sdev->ocb[i];
 521                         ocb->bus_addr = sdev->dma.bus_addr
 522                                 + SBP_LOGIN_SIZE
 523                                 + sizeof(struct sbp_ocb) * i
 524                                 + offsetof(struct sbp_ocb, orb[0]);
 525                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 526                                 printf("sbp_attach: cannot create dmamap\n");
 527                                 /* XXX */
 528                                 goto next;
 529                         }
 530                         sbp_free_ocb(sdev, ocb);
 531                 }
 532 next:
 533                 crom_next(&cc);
 534         }
 535
 536         for (lun = 0; lun < target->num_lun; lun ++) {
 537                 sdev = target->luns[lun];
 538                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 539                         sbp_cam_detach_sdev(sdev);
 540                         sbp_free_sdev(sdev);
 541                         target->luns[lun] = NULL;
 542                 }
 543         }
 544 }
 545
 546 static struct sbp_target *
 547 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 548 {
 549         int i;
 550         struct sbp_target *target;
 551         struct crom_context cc;
 552         struct csrreg *reg;
 553
 554 SBP_DEBUG(1)
 555         printf("sbp_alloc_target\n");
 556 END_DEBUG
 557         i = sbp_new_target(sbp, fwdev);
 558         if (i < 0) {
 559                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 560                 return NULL;
 561         }
 562         /* new target */
 563         target = &sbp->targets[i];
 564         target->sbp = sbp;
 565         target->fwdev = fwdev;
 566         target->target_id = i;
 567         /* XXX we may want to reload mgm port after each bus reset */
 568         /* XXX there might be multiple management agents */
 569         crom_init_context(&cc, target->fwdev->csrrom);
 570         reg = crom_search_key(&cc, CROM_MGM);
 571         if (reg == NULL || reg->val == 0) {
 572                 printf("NULL management address\n");
 573                 target->fwdev = NULL;
 574                 return NULL;
 575         }
 576         target->mgm_hi = 0xffff;
 577         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 578         target->mgm_ocb_cur = NULL;
 579 SBP_DEBUG(1)
 580         printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 581 END_DEBUG
 582         STAILQ_INIT(&target->xferlist);
 583         target->n_xfer = 0;
 584         STAILQ_INIT(&target->mgm_ocb_queue);
 585         CALLOUT_INIT(&target->mgm_ocb_timeout);
 586         CALLOUT_INIT(&target->scan_callout);
 587
 588         target->luns = NULL;
 589         target->num_lun = 0;
 590         return target;
 591 }
 592
 593 static void
 594 sbp_probe_lun(struct sbp_dev *sdev)
 595 {
 596         struct fw_device *fwdev;
 597         struct crom_context c, *cc = &c;
 598         struct csrreg *reg;
 599
 600         bzero(sdev->vendor, sizeof(sdev->vendor));
 601         bzero(sdev->product, sizeof(sdev->product));
 602
 603         fwdev = sdev->target->fwdev;
 604         crom_init_context(cc, fwdev->csrrom);
 605         /* get vendor string */
 606         crom_search_key(cc, CSRKEY_VENDOR);
 607         crom_next(cc);
 608         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 609         /* skip to the unit directory for SBP-2 */
 610         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 611                 if (reg->val == CSRVAL_T10SBP2)
 612                         break;
 613                 crom_next(cc);
 614         }
 615         /* get firmware revision */
 616         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 617         if (reg != NULL)
 618                 snprintf(sdev->revision, sizeof(sdev->revision),
 619                                                 "%06x", reg->val);
 620         /* get product string */
 621         crom_search_key(cc, CSRKEY_MODEL);
 622         crom_next(cc);
 623         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 624 }
 625
 626 static void
 627 sbp_login_callout(void *arg)
 628 {
 629         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 630         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 631 }
 632
 633 static void
 634 sbp_login(struct sbp_dev *sdev)
 635 {
 636         struct timeval delta;
 637         struct timeval t;
 638         int ticks = 0;
 639
 640         microtime(&delta);
 641         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 642         t.tv_sec = login_delay / 1000;
 643         t.tv_usec = (login_delay % 1000) * 1000;
 644         timevalsub(&t, &delta);
 645         if (t.tv_sec >= 0 && t.tv_usec > 0)
 646                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 647 SBP_DEBUG(0)
 648         printf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
 649             t.tv_sec, t.tv_usec, ticks);
 650 END_DEBUG
 651         callout_reset(&sdev->login_callout, ticks,
 652                         sbp_login_callout, (void *)(sdev));
 653 }
 654
 655 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 656         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 657
 658 static void
 659 sbp_probe_target(void *arg)
 660 {
 661         struct sbp_target *target = (struct sbp_target *)arg;
 662         struct sbp_softc *sbp;
 663         struct sbp_dev *sdev;
 664         struct firewire_comm *fc;
 665         int i, alive;
 666
 667         alive = SBP_FWDEV_ALIVE(target->fwdev);
 668 SBP_DEBUG(1)
 669         printf("sbp_probe_target %d\n", target->target_id);
 670         if (!alive)
 671                 printf("not alive\n");
 672 END_DEBUG
 673
 674         sbp = target->sbp;
 675         fc = target->sbp->fd.fc;
 676         sbp_alloc_lun(target);
 677
 678         /* XXX untimeout mgm_ocb and dequeue */
 679         for (i=0; i < target->num_lun; i++) {
 680                 sdev = target->luns[i];
 681                 if (sdev == NULL)
 682                         continue;
 683                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 684                         if (sdev->path != NULL) {
 685                                 xpt_freeze_devq(sdev->path, 1);
 686                                 sdev->freeze ++;
 687                         }
 688                         sbp_probe_lun(sdev);
 689 SBP_DEBUG(0)
 690                         sbp_show_sdev_info(sdev,
 691                                         (sdev->status == SBP_DEV_RESET));
 692 END_DEBUG
 693
 694                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 695                         switch (sdev->status) {
 696                         case SBP_DEV_RESET:
 697                                 /* new or revived target */
 698                                 if (auto_login)
 699                                         sbp_login(sdev);
 700                                 break;
 701                         case SBP_DEV_TOATTACH:
 702                         case SBP_DEV_PROBE:
 703                         case SBP_DEV_ATTACHED:
 704                         case SBP_DEV_RETRY:
 705                         default:
 706                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 707                                 break;
 708                         }
 709                 } else {
 710                         switch (sdev->status) {
 711                         case SBP_DEV_ATTACHED:
 712 SBP_DEBUG(0)
 713                                 /* the device has gone */
 714                                 sbp_show_sdev_info(sdev, 2);
 715                                 printf("lost target\n");
 716 END_DEBUG
 717                                 if (sdev->path) {
 718                                         xpt_freeze_devq(sdev->path, 1);
 719                                         sdev->freeze ++;
 720                                 }
 721                                 sdev->status = SBP_DEV_RETRY;
 722                                 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 723                                 break;
 724                         case SBP_DEV_PROBE:
 725                         case SBP_DEV_TOATTACH:
 726                                 sdev->status = SBP_DEV_RESET;
 727                                 break;
 728                         case SBP_DEV_RETRY:
 729                         case SBP_DEV_RESET:
 730                         case SBP_DEV_DEAD:
 731                                 break;
 732                         }
 733                 }
 734         }
 735 }
 736
 737 static void
 738 sbp_post_busreset(void *arg)
 739 {
 740         struct sbp_softc *sbp;
 741
 742         sbp = (struct sbp_softc *)arg;
 743 SBP_DEBUG(0)
 744         printf("sbp_post_busreset\n");
 745 END_DEBUG
 746         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 747                 xpt_freeze_simq(sbp->sim, /*count*/1);
 748                 sbp->sim->flags |= SIMQ_FREEZED;
 749         }
 750         microtime(&sbp->last_busreset);
 751 }
 752
 753 static void
 754 sbp_post_explore(void *arg)
 755 {
 756         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 757         struct sbp_target *target;
 758         struct fw_device *fwdev;
 759         int i, alive;
 760
 761 SBP_DEBUG(0)
 762         printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
 763 END_DEBUG
 764         if (sbp_cold > 0)
 765                 sbp_cold --;
 766
 767 #if 0
 768         /*
 769          * XXX don't let CAM the bus rest.
 770          * CAM tries to do something with freezed (DEV_RETRY) devices.
 771          */
 772         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 773 #endif
 774
 775         /* Gabage Collection */
 776         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 777                 target = &sbp->targets[i];
 778                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 779                         if (target->fwdev == NULL || target->fwdev == fwdev)
 780                                 break;
 781                 if (fwdev == NULL) {
 782                         /* device has removed in lower driver */
 783                         sbp_cam_detach_target(target);
 784                         sbp_free_target(target);
 785                 }
 786         }
 787         /* traverse device list */
 788         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 789 SBP_DEBUG(0)
 790                 printf("sbp_post_explore: EUI:%08x%08x ",
 791                                 fwdev->eui.hi, fwdev->eui.lo);
 792                 if (fwdev->status != FWDEVATTACHED)
 793                         printf("not attached, state=%d.\n", fwdev->status);
 794                 else
 795                         printf("attached\n");
 796 END_DEBUG
 797                 alive = SBP_FWDEV_ALIVE(fwdev);
 798                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 799                         target = &sbp->targets[i];
 800                         if(target->fwdev == fwdev ) {
 801                                 /* known target */
 802                                 break;
 803                         }
 804                 }
 805                 if(i == SBP_NUM_TARGETS){
 806                         if (alive) {
 807                                 /* new target */
 808                                 target = sbp_alloc_target(sbp, fwdev);
 809                                 if (target == NULL)
 810                                         continue;
 811                         } else {
 812                                 continue;
 813                         }
 814                 }
 815                 sbp_probe_target((void *)target);
 816                 if (target->num_lun == 0)
 817                         sbp_free_target(target);
 818         }
 819         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 820         sbp->sim->flags &= ~SIMQ_FREEZED;
 821 }
 822
 823 #if NEED_RESPONSE
 824 static void
 825 sbp_loginres_callback(struct fw_xfer *xfer){
 826         struct sbp_dev *sdev;
 827         sdev = (struct sbp_dev *)xfer->sc;
 828 SBP_DEBUG(1)
 829         sbp_show_sdev_info(sdev, 2);
 830         printf("sbp_loginres_callback\n");
 831 END_DEBUG
 832         /* recycle */
 833         crit_enter();
 834         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 835         crit_exit();
 836         return;
 837 }
 838 #endif
 839
 840 static __inline void
 841 sbp_xfer_free(struct fw_xfer *xfer)
 842 {
 843         struct sbp_dev *sdev;
 844
 845         sdev = (struct sbp_dev *)xfer->sc;
 846         fw_xfer_unload(xfer);
 847         crit_enter();
 848         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 849         crit_exit();
 850 }
 851
 852 static void
 853 sbp_reset_start_callback(struct fw_xfer *xfer)
 854 {
 855         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 856         struct sbp_target *target = sdev->target;
 857         int i;
 858
 859         if (xfer->resp != 0) {
 860                 sbp_show_sdev_info(sdev, 2);
 861                 printf("sbp_reset_start failed: resp=%d\n", xfer->resp);
 862         }
 863
 864         for (i = 0; i < target->num_lun; i++) {
 865                 tsdev = target->luns[i];
 866                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 867                         sbp_login(tsdev);
 868         }
 869 }
 870
 871 static void
 872 sbp_reset_start(struct sbp_dev *sdev)
 873 {
 874         struct fw_xfer *xfer;
 875         struct fw_pkt *fp;
 876
 877 SBP_DEBUG(0)
 878         sbp_show_sdev_info(sdev, 2);
 879         printf("sbp_reset_start\n");
 880 END_DEBUG
 881
 882         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 883         xfer->act.hand = sbp_reset_start_callback;
 884         fp = &xfer->send.hdr;
 885         fp->mode.wreqq.dest_hi = 0xffff;
 886         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 887         fp->mode.wreqq.data = htonl(0xf);
 888         fw_asyreq(xfer->fc, -1, xfer);
 889 }
 890
 891 static void
 892 sbp_mgm_callback(struct fw_xfer *xfer)
 893 {
 894         struct sbp_dev *sdev;
 895         int resp;
 896
 897         sdev = (struct sbp_dev *)xfer->sc;
 898
 899 SBP_DEBUG(1)
 900         sbp_show_sdev_info(sdev, 2);
 901         printf("sbp_mgm_callback\n");
 902 END_DEBUG
 903         resp = xfer->resp;
 904         sbp_xfer_free(xfer);
 905 #if 0
 906         if (resp != 0) {
 907                 sbp_show_sdev_info(sdev, 2);
 908                 printf("management ORB failed(%d) ... RESET_START\n", resp);
 909                 sbp_reset_start(sdev);
 910         }
 911 #endif
 912         return;
 913 }
 914
 915 static struct sbp_dev *
 916 sbp_next_dev(struct sbp_target *target, int lun)
 917 {
 918         struct sbp_dev **sdevp;
 919         int i;
 920
 921         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 922             i++, sdevp++)
 923                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 924                         return(*sdevp);
 925         return(NULL);
 926 }
 927
 928 #define SCAN_PRI 1
 929 static void
 930 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 931 {
 932         struct sbp_target *target;
 933         struct sbp_dev *sdev;
 934
 935         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
 936         target = sdev->target;
 937 SBP_DEBUG(0)
 938         sbp_show_sdev_info(sdev, 2);
 939         printf("sbp_cam_scan_lun\n");
 940 END_DEBUG
 941         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 942                 sdev->status = SBP_DEV_ATTACHED;
 943         } else {
 944                 sbp_show_sdev_info(sdev, 2);
 945                 printf("scan failed\n");
 946         }
 947         sdev = sbp_next_dev(target, sdev->lun_id + 1);
 948         if (sdev == NULL) {
 949                 kfree(ccb, M_SBP);
 950                 return;
 951         }
 952         /* reuse ccb */
 953         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 954         ccb->ccb_h.ccb_sdev_ptr = sdev;
 955         xpt_action(ccb);
 956         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 957         sdev->freeze = 1;
 958 }
 959
 960 static void
 961 sbp_cam_scan_target(void *arg)
 962 {
 963         struct sbp_target *target = (struct sbp_target *)arg;
 964         struct sbp_dev *sdev;
 965         union ccb *ccb;
 966
 967         sdev = sbp_next_dev(target, 0);
 968         if (sdev == NULL) {
 969                 printf("sbp_cam_scan_target: nothing to do for target%d\n",
 970                                                         target->target_id);
 971                 return;
 972         }
 973 SBP_DEBUG(0)
 974         sbp_show_sdev_info(sdev, 2);
 975         printf("sbp_cam_scan_target\n");
 976 END_DEBUG
 977         ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
 978         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 979         ccb->ccb_h.func_code = XPT_SCAN_LUN;
 980         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
 981         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 982         ccb->crcn.flags = CAM_FLAG_NONE;
 983         ccb->ccb_h.ccb_sdev_ptr = sdev;
 984
 985         /* The scan is in progress now. */
 986         xpt_action(ccb);
 987         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 988         sdev->freeze = 1;
 989 }
 990
 991 static __inline void
 992 sbp_scan_dev(struct sbp_dev *sdev)
 993 {
 994         sdev->status = SBP_DEV_PROBE;
 995         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
 996                         sbp_cam_scan_target, (void *)sdev->target);
 997 }
 998
 999 static void
1000 sbp_do_attach(struct fw_xfer *xfer)
1001 {
1002         struct sbp_dev *sdev;
1003         struct sbp_target *target;
1004         struct sbp_softc *sbp;
1005
1006         sdev = (struct sbp_dev *)xfer->sc;
1007         target = sdev->target;
1008         sbp = target->sbp;
1009 SBP_DEBUG(0)
1010         sbp_show_sdev_info(sdev, 2);
1011         printf("sbp_do_attach\n");
1012 END_DEBUG
1013         sbp_xfer_free(xfer);
1014
1015         if (sdev->path == NULL)
1016                 xpt_create_path(&sdev->path, xpt_periph,
1017                         cam_sim_path(target->sbp->sim),
1018                         target->target_id, sdev->lun_id);
1019
1020         /*
1021          * Let CAM scan the bus if we are in the boot process.
1022          * XXX xpt_scan_bus cannot detect LUN larger than 0
1023          * if LUN 0 doesn't exists.
1024          */
1025         if (sbp_cold > 0) {
1026                 sdev->status = SBP_DEV_ATTACHED;
1027                 return;
1028         }
1029
1030         sbp_scan_dev(sdev);
1031         return;
1032 }
1033
1034 static void
1035 sbp_agent_reset_callback(struct fw_xfer *xfer)
1036 {
1037         struct sbp_dev *sdev;
1038
1039         sdev = (struct sbp_dev *)xfer->sc;
1040 SBP_DEBUG(1)
1041         sbp_show_sdev_info(sdev, 2);
1042         printf("%s\n", __func__);
1043 END_DEBUG
1044         if (xfer->resp != 0) {
1045                 sbp_show_sdev_info(sdev, 2);
1046                 printf("%s: resp=%d\n", __func__, xfer->resp);
1047         }
1048
1049         sbp_xfer_free(xfer);
1050         if (sdev->path) {
1051                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1052                 sdev->freeze = 0;
1053         }
1054 }
1055
1056 static void
1057 sbp_agent_reset(struct sbp_dev *sdev)
1058 {
1059         struct fw_xfer *xfer;
1060         struct fw_pkt *fp;
1061
1062 SBP_DEBUG(0)
1063         sbp_show_sdev_info(sdev, 2);
1064         printf("sbp_agent_reset\n");
1065 END_DEBUG
1066         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1067         if (xfer == NULL)
1068                 return;
1069         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1070                 xfer->act.hand = sbp_agent_reset_callback;
1071         else
1072                 xfer->act.hand = sbp_do_attach;
1073         fp = &xfer->send.hdr;
1074         fp->mode.wreqq.data = htonl(0xf);
1075         fw_asyreq(xfer->fc, -1, xfer);
1076         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1077 }
1078
1079 static void
1080 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1081 {
1082         struct sbp_dev *sdev;
1083
1084         sdev = (struct sbp_dev *)xfer->sc;
1085 SBP_DEBUG(1)
1086         sbp_show_sdev_info(sdev, 2);
1087         printf("sbp_busy_timeout_callback\n");
1088 END_DEBUG
1089         sbp_xfer_free(xfer);
1090         sbp_agent_reset(sdev);
1091 }
1092
1093 static void
1094 sbp_busy_timeout(struct sbp_dev *sdev)
1095 {
1096         struct fw_pkt *fp;
1097         struct fw_xfer *xfer;
1098 SBP_DEBUG(0)
1099         sbp_show_sdev_info(sdev, 2);
1100         printf("sbp_busy_timeout\n");
1101 END_DEBUG
1102         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1103
1104         xfer->act.hand = sbp_busy_timeout_callback;
1105         fp = &xfer->send.hdr;
1106         fp->mode.wreqq.dest_hi = 0xffff;
1107         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1108         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1109         fw_asyreq(xfer->fc, -1, xfer);
1110 }
1111
1112 static void
1113 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1114 {
1115         struct sbp_dev *sdev;
1116         sdev = (struct sbp_dev *)xfer->sc;
1117
1118 SBP_DEBUG(1)
1119         sbp_show_sdev_info(sdev, 2);
1120         printf("%s\n", __func__);
1121 END_DEBUG
1122         if (xfer->resp != 0) {
1123                 /* XXX */
1124                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1125         }
1126         sbp_xfer_free(xfer);
1127         sdev->flags &= ~ORB_POINTER_ACTIVE;
1128
1129         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1130                 struct sbp_ocb *ocb;
1131
1132                 sdev->flags &= ~ORB_POINTER_NEED;
1133                 ocb = STAILQ_FIRST(&sdev->ocbs);
1134                 if (ocb != NULL)
1135                         sbp_orb_pointer(sdev, ocb);
1136         }
1137         return;
1138 }
1139
1140 static void
1141 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1142 {
1143         struct fw_xfer *xfer;
1144         struct fw_pkt *fp;
1145 SBP_DEBUG(1)
1146         sbp_show_sdev_info(sdev, 2);
1147         printf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1148 END_DEBUG
1149
1150         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1151 SBP_DEBUG(0)
1152                 printf("%s: orb pointer active\n", __func__);
1153 END_DEBUG
1154                 sdev->flags |= ORB_POINTER_NEED;
1155                 return;
1156         }
1157
1158         sdev->flags |= ORB_POINTER_ACTIVE;
1159         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1160         if (xfer == NULL)
1161                 return;
1162         xfer->act.hand = sbp_orb_pointer_callback;
1163
1164         fp = &xfer->send.hdr;
1165         fp->mode.wreqb.len = 8;
1166         fp->mode.wreqb.extcode = 0;
1167         xfer->send.payload[0] =
1168                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1169         xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1170
1171         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1172                         sbp_xfer_free(xfer);
1173                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1174                         xpt_done(ocb->ccb);
1175         }
1176 }
1177
1178 #if 0
1179 static void
1180 sbp_cmd_callback(struct fw_xfer *xfer)
1181 {
1182 SBP_DEBUG(1)
1183         struct sbp_dev *sdev;
1184         sdev = (struct sbp_dev *)xfer->sc;
1185         sbp_show_sdev_info(sdev, 2);
1186         printf("sbp_cmd_callback\n");
1187 END_DEBUG
1188         if (xfer->resp != 0) {
1189                 /* XXX */
1190                 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1191         }
1192         sbp_xfer_free(xfer);
1193         return;
1194 }
1195
1196 static void
1197 sbp_doorbell(struct sbp_dev *sdev)
1198 {
1199         struct fw_xfer *xfer;
1200         struct fw_pkt *fp;
1201 SBP_DEBUG(1)
1202         sbp_show_sdev_info(sdev, 2);
1203         printf("sbp_doorbell\n");
1204 END_DEBUG
1205
1206         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1207         if (xfer == NULL)
1208                 return;
1209         xfer->act.hand = sbp_cmd_callback;
1210         fp = (struct fw_pkt *)xfer->send.buf;
1211         fp->mode.wreqq.data = htonl(0xf);
1212         fw_asyreq(xfer->fc, -1, xfer);
1213 }
1214 #endif
1215
1216 static struct fw_xfer *
1217 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1218 {
1219         struct fw_xfer *xfer;
1220         struct fw_pkt *fp;
1221         struct sbp_target *target;
1222         int new = 0;
1223
1224         target = sdev->target;
1225         crit_enter();
1226         xfer = STAILQ_FIRST(&target->xferlist);
1227         if (xfer == NULL) {
1228                 if (target->n_xfer > 5 /* XXX */) {
1229                         printf("sbp: no more xfer for this target\n");
1230                         crit_exit();
1231                         return(NULL);
1232                 }
1233                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1234                 if(xfer == NULL){
1235                         printf("sbp: fw_xfer_alloc_buf failed\n");
1236                         crit_exit();
1237                         return NULL;
1238                 }
1239                 target->n_xfer ++;
1240                 if (debug)
1241                         printf("sbp: alloc %d xfer\n", target->n_xfer);
1242                 new = 1;
1243         } else {
1244                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1245         }
1246         crit_exit();
1247
1248         microtime(&xfer->tv);
1249
1250         if (new) {
1251                 xfer->recv.pay_len = 0;
1252                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1253                 xfer->fc = sdev->target->sbp->fd.fc;
1254                 xfer->retry_req = fw_asybusy;
1255         }
1256
1257         if (tcode == FWTCODE_WREQB)
1258                 xfer->send.pay_len = 8;
1259         else
1260                 xfer->send.pay_len = 0;
1261
1262         xfer->sc = (caddr_t)sdev;
1263         fp = &xfer->send.hdr;
1264         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1265         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1266         fp->mode.wreqq.tlrt = 0;
1267         fp->mode.wreqq.tcode = tcode;
1268         fp->mode.wreqq.pri = 0;
1269         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1270
1271         return xfer;
1272
1273 }
1274
1275 static void
1276 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1277 {
1278         struct fw_xfer *xfer;
1279         struct fw_pkt *fp;
1280         struct sbp_ocb *ocb;
1281         struct sbp_target *target;
1282         int nid;
1283
1284         target = sdev->target;
1285         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1286
1287         crit_enter();
1288         if (func == ORB_FUN_RUNQUEUE) {
1289                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1290                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1291                         crit_exit();
1292                         return;
1293                 }
1294                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1295                 goto start;
1296         }
1297         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1298                 crit_exit();
1299                 /* XXX */
1300                 return;
1301         }
1302         ocb->flags = OCB_ACT_MGM;
1303         ocb->sdev = sdev;
1304
1305         bzero((void *)ocb->orb, sizeof(ocb->orb));
1306         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1307         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1308
1309 SBP_DEBUG(0)
1310         sbp_show_sdev_info(sdev, 2);
1311         printf("%s\n", orb_fun_name[(func>>16)&0xf]);
1312 END_DEBUG
1313         switch (func) {
1314         case ORB_FUN_LGI:
1315                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1316                 ocb->orb[2] = htonl(nid << 16);
1317                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1318                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1319                 if (ex_login)
1320                         ocb->orb[4] |= htonl(ORB_EXV);
1321                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1322                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1323                 break;
1324         case ORB_FUN_ATA:
1325                 ocb->orb[0] = htonl((0 << 16) | 0);
1326                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1327                 /* fall through */
1328         case ORB_FUN_RCN:
1329         case ORB_FUN_LGO:
1330         case ORB_FUN_LUR:
1331         case ORB_FUN_RST:
1332         case ORB_FUN_ATS:
1333                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1334                 break;
1335         }
1336
1337         if (target->mgm_ocb_cur != NULL) {
1338                 /* there is a standing ORB */
1339                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1340                 crit_exit();
1341                 return;
1342         }
1343 start:
1344         target->mgm_ocb_cur = ocb;
1345         crit_exit();
1346
1347         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1348                                 sbp_mgm_timeout, (caddr_t)ocb);
1349         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1350         if(xfer == NULL){
1351                 return;
1352         }
1353         xfer->act.hand = sbp_mgm_callback;
1354
1355         fp = &xfer->send.hdr;
1356         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1357         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1358         fp->mode.wreqb.len = 8;
1359         fp->mode.wreqb.extcode = 0;
1360         xfer->send.payload[0] = htonl(nid << 16);
1361         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1362 SBP_DEBUG(0)
1363         sbp_show_sdev_info(sdev, 2);
1364         printf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1365 END_DEBUG
1366
1367         fw_asyreq(xfer->fc, -1, xfer);
1368 }
1369
1370 static void
1371 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1372 {
1373         struct ccb_scsiio *csio;
1374
1375         csio = &ocb->ccb->csio;
1376         printf("%s:%d:%d XPT_SCSI_IO: "
1377                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1378                 ", flags: 0x%02x, "
1379                 "%db cmd/%db data/%db sense\n",
1380                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1381                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1382                 csio->cdb_io.cdb_bytes[0],
1383                 csio->cdb_io.cdb_bytes[1],
1384                 csio->cdb_io.cdb_bytes[2],
1385                 csio->cdb_io.cdb_bytes[3],
1386                 csio->cdb_io.cdb_bytes[4],
1387                 csio->cdb_io.cdb_bytes[5],
1388                 csio->cdb_io.cdb_bytes[6],
1389                 csio->cdb_io.cdb_bytes[7],
1390                 csio->cdb_io.cdb_bytes[8],
1391                 csio->cdb_io.cdb_bytes[9],
1392                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1393                 csio->cdb_len, csio->dxfer_len,
1394                 csio->sense_len);
1395 }
1396
1397 static void
1398 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1399 {
1400         struct sbp_cmd_status *sbp_cmd_status;
1401         struct scsi_sense_data *sense;
1402
1403         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1404         sense = &ocb->ccb->csio.sense_data;
1405
1406 SBP_DEBUG(0)
1407         sbp_print_scsi_cmd(ocb);
1408         /* XXX need decode status */
1409         sbp_show_sdev_info(ocb->sdev, 2);
1410         printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1411                 sbp_cmd_status->status,
1412                 sbp_cmd_status->sfmt,
1413                 sbp_cmd_status->valid,
1414                 sbp_cmd_status->s_key,
1415                 sbp_cmd_status->s_code,
1416                 sbp_cmd_status->s_qlfr,
1417                 sbp_status->len
1418         );
1419 END_DEBUG
1420
1421         switch (sbp_cmd_status->status) {
1422         case SCSI_STATUS_CHECK_COND:
1423         case SCSI_STATUS_BUSY:
1424         case SCSI_STATUS_CMD_TERMINATED:
1425                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1426                         sense->error_code = SSD_CURRENT_ERROR;
1427                 }else{
1428                         sense->error_code = SSD_DEFERRED_ERROR;
1429                 }
1430                 if(sbp_cmd_status->valid)
1431                         sense->error_code |= SSD_ERRCODE_VALID;
1432                 sense->flags = sbp_cmd_status->s_key;
1433                 if(sbp_cmd_status->mark)
1434                         sense->flags |= SSD_FILEMARK;
1435                 if(sbp_cmd_status->eom)
1436                         sense->flags |= SSD_EOM;
1437                 if(sbp_cmd_status->ill_len)
1438                         sense->flags |= SSD_ILI;
1439
1440                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1441
1442                 if (sbp_status->len <= 1)
1443                         /* XXX not scsi status. shouldn't be happened */
1444                         sense->extra_len = 0;
1445                 else if (sbp_status->len <= 4)
1446                         /* add_sense_code(_qual), info, cmd_spec_info */
1447                         sense->extra_len = 6;
1448                 else
1449                         /* fru, sense_key_spec */
1450                         sense->extra_len = 10;
1451
1452                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1453
1454                 sense->add_sense_code = sbp_cmd_status->s_code;
1455                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1456                 sense->fru = sbp_cmd_status->fru;
1457
1458                 bcopy(&sbp_cmd_status->s_keydep[0],
1459                     &sense->sense_key_spec[0], 3);
1460
1461                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1462                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1463                                                         | CAM_AUTOSNS_VALID;
1464 /*
1465 {
1466                 u_int8_t j, *tmp;
1467                 tmp = sense;
1468                 for( j = 0 ; j < 32 ; j+=8){
1469                         printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1470                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1471                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1472                 }
1473
1474 }
1475 */
1476                 break;
1477         default:
1478                 sbp_show_sdev_info(ocb->sdev, 2);
1479                 printf("sbp_scsi_status: unknown scsi status 0x%x\n",
1480                                                 sbp_cmd_status->status);
1481         }
1482 }
1483
1484 static void
1485 sbp_fix_inq_data(struct sbp_ocb *ocb)
1486 {
1487         union ccb *ccb;
1488         struct sbp_dev *sdev;
1489         struct scsi_inquiry_data *inq;
1490
1491         ccb = ocb->ccb;
1492         sdev = ocb->sdev;
1493
1494         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1495                 return;
1496 SBP_DEBUG(1)
1497         sbp_show_sdev_info(sdev, 2);
1498         printf("sbp_fix_inq_data\n");
1499 END_DEBUG
1500         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1501         switch (SID_TYPE(inq)) {
1502         case T_DIRECT:
1503 #if 0
1504                 /*
1505                  * XXX Convert Direct Access device to RBC.
1506                  * I've never seen FireWire DA devices which support READ_6.
1507                  */
1508                 if (SID_TYPE(inq) == T_DIRECT)
1509                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1510 #endif
1511                 /* fall through */
1512         case T_RBC:
1513                 /* enable tagged queuing */
1514                 if (sbp_tags)
1515                         inq->flags |= SID_CmdQue;
1516                 else
1517                         inq->flags &= ~SID_CmdQue;
1518                 /*
1519                  * Override vendor/product/revision information.
1520                  * Some devices sometimes return strange strings.
1521                  */
1522 #if 1
1523                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1524                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1525                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1526 #endif
1527                 break;
1528         }
1529 }
1530
1531 static void
1532 sbp_recv1(struct fw_xfer *xfer)
1533 {
1534         struct fw_pkt *rfp;
1535 #if NEED_RESPONSE
1536         struct fw_pkt *sfp;
1537 #endif
1538         struct sbp_softc *sbp;
1539         struct sbp_dev *sdev;
1540         struct sbp_ocb *ocb;
1541         struct sbp_login_res *login_res = NULL;
1542         struct sbp_status *sbp_status;
1543         struct sbp_target *target;
1544         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1545         u_int32_t addr;
1546 /*
1547         u_int32_t *ld;
1548         ld = xfer->recv.buf;
1549 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1550                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1551 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1552 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1553 */
1554         sbp = (struct sbp_softc *)xfer->sc;
1555         if (xfer->resp != 0){
1556                 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1557                 goto done0;
1558         }
1559         if (xfer->recv.payload == NULL){
1560                 printf("sbp_recv: xfer->recv.payload == NULL\n");
1561                 goto done0;
1562         }
1563         rfp = &xfer->recv.hdr;
1564         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1565                 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1566                 goto done0;
1567         }
1568         sbp_status = (struct sbp_status *)xfer->recv.payload;
1569         addr = rfp->mode.wreqb.dest_lo;
1570 SBP_DEBUG(2)
1571         printf("received address 0x%x\n", addr);
1572 END_DEBUG
1573         t = SBP_ADDR2TRG(addr);
1574         if (t >= SBP_NUM_TARGETS) {
1575                 device_printf(sbp->fd.dev,
1576                         "sbp_recv1: invalid target %d\n", t);
1577                 goto done0;
1578         }
1579         target = &sbp->targets[t];
1580         l = SBP_ADDR2LUN(addr);
1581         if (l >= target->num_lun || target->luns[l] == NULL) {
1582                 device_printf(sbp->fd.dev,
1583                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1584                 goto done0;
1585         }
1586         sdev = target->luns[l];
1587
1588         ocb = NULL;
1589         switch (sbp_status->src) {
1590         case 0:
1591         case 1:
1592                 /* check mgm_ocb_cur first */
1593                 ocb  = target->mgm_ocb_cur;
1594                 if (ocb != NULL) {
1595                         if (OCB_MATCH(ocb, sbp_status)) {
1596                                 callout_stop(&target->mgm_ocb_timeout);
1597                                 target->mgm_ocb_cur = NULL;
1598                                 break;
1599                         }
1600                 }
1601                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1602                 if (ocb == NULL) {
1603                         sbp_show_sdev_info(sdev, 2);
1604                         printf("No ocb(%x) on the queue\n",
1605                                         ntohl(sbp_status->orb_lo));
1606                 }
1607                 break;
1608         case 2:
1609                 /* unsolicit */
1610                 sbp_show_sdev_info(sdev, 2);
1611                 printf("unsolicit status received\n");
1612                 break;
1613         default:
1614                 sbp_show_sdev_info(sdev, 2);
1615                 printf("unknown sbp_status->src\n");
1616         }
1617
1618         status_valid0 = (sbp_status->src < 2
1619                         && sbp_status->resp == ORB_RES_CMPL
1620                         && sbp_status->dead == 0);
1621         status_valid = (status_valid0 && sbp_status->status == 0);
1622
1623         if (!status_valid0 || debug > 2){
1624                 int status;
1625 SBP_DEBUG(0)
1626                 sbp_show_sdev_info(sdev, 2);
1627                 printf("ORB status src:%x resp:%x dead:%x"
1628                                 " len:%x stat:%x orb:%x%08x\n",
1629                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1630                         sbp_status->len, sbp_status->status,
1631                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1632 END_DEBUG
1633                 sbp_show_sdev_info(sdev, 2);
1634                 status = sbp_status->status;
1635                 switch(sbp_status->resp) {
1636                 case 0:
1637                         if (status > MAX_ORB_STATUS0)
1638                                 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1639                         else
1640                                 printf("%s\n", orb_status0[status]);
1641                         break;
1642                 case 1:
1643                         printf("Obj: %s, Error: %s\n",
1644                                 orb_status1_object[(status>>6) & 3],
1645                                 orb_status1_serial_bus_error[status & 0xf]);
1646                         break;
1647                 case 2:
1648                         printf("Illegal request\n");
1649                         break;
1650                 case 3:
1651                         printf("Vendor dependent\n");
1652                         break;
1653                 default:
1654                         printf("unknown respose code %d\n", sbp_status->resp);
1655                 }
1656         }
1657
1658         /* we have to reset the fetch agent if it's dead */
1659         if (sbp_status->dead) {
1660                 if (sdev->path) {
1661                         xpt_freeze_devq(sdev->path, 1);
1662                         sdev->freeze ++;
1663                 }
1664                 reset_agent = 1;
1665         }
1666
1667         if (ocb == NULL)
1668                 goto done;
1669
1670         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1671         case ORB_FMT_NOP:
1672                 break;
1673         case ORB_FMT_VED:
1674                 break;
1675         case ORB_FMT_STD:
1676                 switch(ocb->flags) {
1677                 case OCB_ACT_MGM:
1678                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1679                         reset_agent = 0;
1680                         switch(orb_fun) {
1681                         case ORB_FUN_LGI:
1682                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1683                                 login_res = sdev->login;
1684                                 login_res->len = ntohs(login_res->len);
1685                                 login_res->id = ntohs(login_res->id);
1686                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1687                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1688                                 if (status_valid) {
1689 SBP_DEBUG(0)
1690 sbp_show_sdev_info(sdev, 2);
1691 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));
1692 END_DEBUG
1693                                         sbp_busy_timeout(sdev);
1694                                 } else {
1695                                         /* forgot logout? */
1696                                         sbp_show_sdev_info(sdev, 2);
1697                                         printf("login failed\n");
1698                                         sdev->status = SBP_DEV_RESET;
1699                                 }
1700                                 break;
1701                         case ORB_FUN_RCN:
1702                                 login_res = sdev->login;
1703                                 if (status_valid) {
1704 SBP_DEBUG(0)
1705 sbp_show_sdev_info(sdev, 2);
1706 printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1707 END_DEBUG
1708 #if 1
1709                                         if (sdev->status == SBP_DEV_ATTACHED)
1710                                                 sbp_scan_dev(sdev);
1711                                         else
1712                                                 sbp_agent_reset(sdev);
1713 #else
1714                                         sdev->status = SBP_DEV_ATTACHED;
1715                                         sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1716 #endif
1717                                 } else {
1718                                         /* reconnection hold time exceed? */
1719 SBP_DEBUG(0)
1720                                         sbp_show_sdev_info(sdev, 2);
1721                                         printf("reconnect failed\n");
1722 END_DEBUG
1723                                         sbp_login(sdev);
1724                                 }
1725                                 break;
1726                         case ORB_FUN_LGO:
1727                                 sdev->status = SBP_DEV_RESET;
1728                                 break;
1729                         case ORB_FUN_RST:
1730                                 sbp_busy_timeout(sdev);
1731                                 break;
1732                         case ORB_FUN_LUR:
1733                         case ORB_FUN_ATA:
1734                         case ORB_FUN_ATS:
1735                                 sbp_agent_reset(sdev);
1736                                 break;
1737                         default:
1738                                 sbp_show_sdev_info(sdev, 2);
1739                                 printf("unknown function %d\n", orb_fun);
1740                                 break;
1741                         }
1742                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1743                         break;
1744                 case OCB_ACT_CMD:
1745                         sdev->timeout = 0;
1746                         if(ocb->ccb != NULL){
1747                                 union ccb *ccb;
1748 /*
1749                                 u_int32_t *ld;
1750                                 ld = ocb->ccb->csio.data_ptr;
1751                                 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1752                                         printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1753                                 else
1754                                         printf("ptr NULL\n");
1755 printf("len %d\n", sbp_status->len);
1756 */
1757                                 ccb = ocb->ccb;
1758                                 if(sbp_status->len > 1){
1759                                         sbp_scsi_status(sbp_status, ocb);
1760                                 }else{
1761                                         if(sbp_status->resp != ORB_RES_CMPL){
1762                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1763                                         }else{
1764                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1765                                         }
1766                                 }
1767                                 /* fix up inq data */
1768                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1769                                         sbp_fix_inq_data(ocb);
1770                                 xpt_done(ccb);
1771                         }
1772                         break;
1773                 default:
1774                         break;
1775                 }
1776         }
1777
1778         sbp_free_ocb(sdev, ocb);
1779 done:
1780         if (reset_agent)
1781                 sbp_agent_reset(sdev);
1782
1783 done0:
1784         xfer->recv.pay_len = SBP_RECV_LEN;
1785 /* The received packet is usually small enough to be stored within
1786  * the buffer. In that case, the controller return ack_complete and
1787  * no respose is necessary.
1788  *
1789  * XXX fwohci.c and firewire.c should inform event_code such as
1790  * ack_complete or ack_pending to upper driver.
1791  */
1792 #if NEED_RESPONSE
1793         xfer->send.off = 0;
1794         sfp = (struct fw_pkt *)xfer->send.buf;
1795         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1796         xfer->dst = sfp->mode.wres.dst;
1797         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1798         xfer->act.hand = sbp_loginres_callback;
1799         xfer->retry_req = fw_asybusy;
1800
1801         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1802         sfp->mode.wres.tcode = FWTCODE_WRES;
1803         sfp->mode.wres.rtcode = 0;
1804         sfp->mode.wres.pri = 0;
1805
1806         fw_asyreq(xfer->fc, -1, xfer);
1807 #else
1808         /* recycle */
1809         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1810 #endif
1811
1812         return;
1813
1814 }
1815
1816 static void
1817 sbp_recv(struct fw_xfer *xfer)
1818 {
1819         crit_enter();
1820         sbp_recv1(xfer);
1821         crit_exit();
1822 }
1823 /*
1824  * sbp_attach()
1825  */
1826 static int
1827 sbp_attach(device_t dev)
1828 {
1829         struct sbp_softc *sbp;
1830         struct cam_devq *devq;
1831         struct fw_xfer *xfer;
1832         int i, error;
1833
1834 SBP_DEBUG(0)
1835         printf("sbp_attach (cold=%d)\n", cold);
1836 END_DEBUG
1837
1838         if (cold)
1839                 sbp_cold ++;
1840         sbp = ((struct sbp_softc *)device_get_softc(dev));
1841         bzero(sbp, sizeof(struct sbp_softc));
1842         sbp->fd.dev = dev;
1843         sbp->fd.fc = device_get_ivars(dev);
1844
1845         if (max_speed < 0)
1846                 max_speed = sbp->fd.fc->speed;
1847
1848         error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1849                                 /* XXX shoud be 4 for sane backend? */
1850                                 /*alignment*/1,
1851                                 /*boundary*/0,
1852                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1853                                 /*highaddr*/BUS_SPACE_MAXADDR,
1854                                 /*filter*/NULL, /*filterarg*/NULL,
1855                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1856                                 /*maxsegsz*/SBP_SEG_MAX,
1857                                 /*flags*/BUS_DMA_ALLOCNOW,
1858 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1859                                 /*lockfunc*/busdma_lock_mutex,
1860                                 /*lockarg*/&Giant,
1861 #endif
1862                                 &sbp->dmat);
1863         if (error != 0) {
1864                 printf("sbp_attach: Could not allocate DMA tag "
1865                         "- error %d\n", error);
1866                         return (ENOMEM);
1867         }
1868
1869         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1870         if (devq == NULL)
1871                 return (ENXIO);
1872
1873         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1874                 sbp->targets[i].fwdev = NULL;
1875                 sbp->targets[i].luns = NULL;
1876         }
1877
1878         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1879                                  device_get_unit(dev),
1880                                  /*untagged*/ 1,
1881                                  /*tagged*/ SBP_QUEUE_LEN - 1,
1882                                  devq);
1883         cam_simq_release(devq);
1884         if (sbp->sim == NULL)
1885                 return (ENXIO);
1886
1887         if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1888                 goto fail;
1889
1890         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1891             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1892                 xpt_bus_deregister(cam_sim_path(sbp->sim));
1893                 goto fail;
1894         }
1895
1896         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1897         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1898         sbp->fwb.end = sbp->fwb.start + 0xffff;
1899         sbp->fwb.act_type = FWACT_XFER;
1900         /* pre-allocate xfer */
1901         STAILQ_INIT(&sbp->fwb.xferlist);
1902         for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1903                 xfer = fw_xfer_alloc_buf(M_SBP,
1904                         /* send */0,
1905                         /* recv */SBP_RECV_LEN);
1906                 xfer->act.hand = sbp_recv;
1907 #if NEED_RESPONSE
1908                 xfer->fc = sbp->fd.fc;
1909 #endif
1910                 xfer->sc = (caddr_t)sbp;
1911                 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1912         }
1913         fw_bindadd(sbp->fd.fc, &sbp->fwb);
1914
1915         sbp->fd.post_busreset = sbp_post_busreset;
1916         sbp->fd.post_explore = sbp_post_explore;
1917
1918         if (sbp->fd.fc->status != -1) {
1919                 crit_enter();
1920                 sbp_post_busreset((void *)sbp);
1921                 sbp_post_explore((void *)sbp);
1922                 crit_exit();
1923         }
1924         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1925
1926         return (0);
1927 fail:
1928         cam_sim_free(sbp->sim);
1929         return (ENXIO);
1930 }
1931
1932 static int
1933 sbp_logout_all(struct sbp_softc *sbp)
1934 {
1935         struct sbp_target *target;
1936         struct sbp_dev *sdev;
1937         int i, j;
1938
1939 SBP_DEBUG(0)
1940         printf("sbp_logout_all\n");
1941 END_DEBUG
1942         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1943                 target = &sbp->targets[i];
1944                 if (target->luns == NULL)
1945                         continue;
1946                 for (j = 0; j < target->num_lun; j++) {
1947                         sdev = target->luns[j];
1948                         if (sdev == NULL)
1949                                 continue;
1950                         callout_stop(&sdev->login_callout);
1951                         if (sdev->status >= SBP_DEV_TOATTACH &&
1952                                         sdev->status <= SBP_DEV_ATTACHED)
1953                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1954                 }
1955         }
1956
1957         return 0;
1958 }
1959
1960 static int
1961 sbp_shutdown(device_t dev)
1962 {
1963         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1964
1965         sbp_logout_all(sbp);
1966         return (0);
1967 }
1968
1969 static void
1970 sbp_free_sdev(struct sbp_dev *sdev)
1971 {
1972         int i;
1973
1974         if (sdev == NULL)
1975                 return;
1976         for (i = 0; i < SBP_QUEUE_LEN; i++)
1977                 bus_dmamap_destroy(sdev->target->sbp->dmat,
1978                     sdev->ocb[i].dmamap);
1979         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
1980         kfree(sdev, M_SBP);
1981 }
1982
1983 static void
1984 sbp_free_target(struct sbp_target *target)
1985 {
1986         struct sbp_softc *sbp;
1987         struct fw_xfer *xfer, *next;
1988         int i;
1989
1990         if (target->luns == NULL)
1991                 return;
1992         callout_stop(&target->mgm_ocb_timeout);
1993         sbp = target->sbp;
1994         for (i = 0; i < target->num_lun; i++)
1995                 sbp_free_sdev(target->luns[i]);
1996
1997         for (xfer = STAILQ_FIRST(&target->xferlist);
1998                         xfer != NULL; xfer = next) {
1999                 next = STAILQ_NEXT(xfer, link);
2000                 fw_xfer_free_buf(xfer);
2001         }
2002         STAILQ_INIT(&target->xferlist);
2003         kfree(target->luns, M_SBP);
2004         target->num_lun = 0;
2005         target->luns = NULL;
2006         target->fwdev = NULL;
2007 }
2008
2009 static int
2010 sbp_detach(device_t dev)
2011 {
2012         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2013         struct firewire_comm *fc = sbp->fd.fc;
2014         struct fw_xfer *xfer, *next;
2015         int i;
2016
2017 SBP_DEBUG(0)
2018         printf("sbp_detach\n");
2019 END_DEBUG
2020
2021         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2022                 sbp_cam_detach_target(&sbp->targets[i]);
2023         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2024         xpt_free_path(sbp->path);
2025         xpt_bus_deregister(cam_sim_path(sbp->sim));
2026         cam_sim_free(sbp->sim);
2027
2028         sbp_logout_all(sbp);
2029
2030         /* XXX wait for logout completion */
2031         tsleep(&i, FWPRI, "sbpdtc", hz/2);
2032
2033         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2034                 sbp_free_target(&sbp->targets[i]);
2035
2036         for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2037                                 xfer != NULL; xfer = next) {
2038                 next = STAILQ_NEXT(xfer, link);
2039                 fw_xfer_free_buf(xfer);
2040         }
2041         STAILQ_INIT(&sbp->fwb.xferlist);
2042         fw_bindremove(fc, &sbp->fwb);
2043
2044         bus_dma_tag_destroy(sbp->dmat);
2045
2046         return (0);
2047 }
2048
2049 static void
2050 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2051 {
2052         if (sdev == NULL)
2053                 return;
2054         if (sdev->status == SBP_DEV_DEAD)
2055                 return;
2056         if (sdev->status == SBP_DEV_RESET)
2057                 return;
2058         if (sdev->path) {
2059                 xpt_release_devq(sdev->path,
2060                                  sdev->freeze, TRUE);
2061                 sdev->freeze = 0;
2062                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2063                 xpt_free_path(sdev->path);
2064                 sdev->path = NULL;
2065         }
2066         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2067 }
2068
2069 static void
2070 sbp_cam_detach_target(struct sbp_target *target)
2071 {
2072         int i;
2073
2074         if (target->luns != NULL) {
2075 SBP_DEBUG(0)
2076                 printf("sbp_detach_target %d\n", target->target_id);
2077 END_DEBUG
2078                 callout_stop(&target->scan_callout);
2079                 for (i = 0; i < target->num_lun; i++)
2080                         sbp_cam_detach_sdev(target->luns[i]);
2081         }
2082 }
2083
2084 static void
2085 sbp_target_reset(struct sbp_dev *sdev, int method)
2086 {
2087         int i;
2088         struct sbp_target *target = sdev->target;
2089         struct sbp_dev *tsdev;
2090
2091         for (i = 0; i < target->num_lun; i++) {
2092                 tsdev = target->luns[i];
2093                 if (tsdev == NULL)
2094                         continue;
2095                 if (tsdev->status == SBP_DEV_DEAD)
2096                         continue;
2097                 if (tsdev->status == SBP_DEV_RESET)
2098                         continue;
2099                 xpt_freeze_devq(tsdev->path, 1);
2100                 tsdev->freeze ++;
2101                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2102                 if (method == 2)
2103                         tsdev->status = SBP_DEV_LOGIN;
2104         }
2105         switch(method) {
2106         case 1:
2107                 printf("target reset\n");
2108                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2109                 break;
2110         case 2:
2111                 printf("reset start\n");
2112                 sbp_reset_start(sdev);
2113                 break;
2114         }
2115
2116 }
2117
2118 static void
2119 sbp_mgm_timeout(void *arg)
2120 {
2121         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2122         struct sbp_dev *sdev = ocb->sdev;
2123         struct sbp_target *target = sdev->target;
2124
2125         sbp_show_sdev_info(sdev, 2);
2126         printf("request timeout(mgm orb:0x%08x) ... ",
2127             (u_int32_t)ocb->bus_addr);
2128         target->mgm_ocb_cur = NULL;
2129         sbp_free_ocb(sdev, ocb);
2130 #if 0
2131         /* XXX */
2132         printf("run next request\n");
2133         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2134 #endif
2135 #if 1
2136         printf("reset start\n");
2137         sbp_reset_start(sdev);
2138 #endif
2139 }
2140
2141 static void
2142 sbp_timeout(void *arg)
2143 {
2144         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2145         struct sbp_dev *sdev = ocb->sdev;
2146
2147         sbp_show_sdev_info(sdev, 2);
2148         printf("request timeout(cmd orb:0x%08x) ... ",
2149             (u_int32_t)ocb->bus_addr);
2150
2151         sdev->timeout ++;
2152         switch(sdev->timeout) {
2153         case 1:
2154                 printf("agent reset\n");
2155                 xpt_freeze_devq(sdev->path, 1);
2156                 sdev->freeze ++;
2157                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2158                 sbp_agent_reset(sdev);
2159                 break;
2160         case 2:
2161         case 3:
2162                 sbp_target_reset(sdev, sdev->timeout - 1);
2163                 break;
2164 #if 0
2165         default:
2166                 /* XXX give up */
2167                 sbp_cam_detach_target(target);
2168                 if (target->luns != NULL)
2169                         kfree(target->luns, M_SBP);
2170                 target->num_lun = 0;
2171                 target->luns = NULL;
2172                 target->fwdev = NULL;
2173 #endif
2174         }
2175 }
2176
2177 static void
2178 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2179 {
2180
2181         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2182         struct sbp_target *target = NULL;
2183         struct sbp_dev *sdev = NULL;
2184
2185         /* target:lun -> sdev mapping */
2186         if (sbp != NULL
2187                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2188                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2189                 target = &sbp->targets[ccb->ccb_h.target_id];
2190                 if (target->fwdev != NULL
2191                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2192                                 && ccb->ccb_h.target_lun < target->num_lun) {
2193                         sdev = target->luns[ccb->ccb_h.target_lun];
2194                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2195                                 sdev->status != SBP_DEV_PROBE)
2196                                 sdev = NULL;
2197                 }
2198         }
2199
2200 SBP_DEBUG(1)
2201         if (sdev == NULL)
2202                 printf("invalid target %d lun %d\n",
2203                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2204 END_DEBUG
2205
2206         switch (ccb->ccb_h.func_code) {
2207         case XPT_SCSI_IO:
2208         case XPT_RESET_DEV:
2209         case XPT_GET_TRAN_SETTINGS:
2210         case XPT_SET_TRAN_SETTINGS:
2211         case XPT_CALC_GEOMETRY:
2212                 if (sdev == NULL) {
2213 SBP_DEBUG(1)
2214                         printf("%s:%d:%d:func_code 0x%04x: "
2215                                 "Invalid target (target needed)\n",
2216                                 device_get_nameunit(sbp->fd.dev),
2217                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2218                                 ccb->ccb_h.func_code);
2219 END_DEBUG
2220
2221                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2222                         xpt_done(ccb);
2223                         return;
2224                 }
2225                 break;
2226         case XPT_PATH_INQ:
2227         case XPT_NOOP:
2228                 /* The opcodes sometimes aimed at a target (sc is valid),
2229                  * sometimes aimed at the SIM (sc is invalid and target is
2230                  * CAM_TARGET_WILDCARD)
2231                  */
2232                 if (sbp == NULL &&
2233                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2234 SBP_DEBUG(0)
2235                         printf("%s:%d:%d func_code 0x%04x: "
2236                                 "Invalid target (no wildcard)\n",
2237                                 device_get_nameunit(sbp->fd.dev),
2238                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2239                                 ccb->ccb_h.func_code);
2240 END_DEBUG
2241                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2242                         xpt_done(ccb);
2243                         return;
2244                 }
2245                 break;
2246         default:
2247                 /* XXX Hm, we should check the input parameters */
2248                 break;
2249         }
2250
2251         switch (ccb->ccb_h.func_code) {
2252         case XPT_SCSI_IO:
2253         {
2254                 struct ccb_scsiio *csio;
2255                 struct sbp_ocb *ocb;
2256                 int speed;
2257                 void *cdb;
2258
2259                 csio = &ccb->csio;
2260
2261 SBP_DEBUG(2)
2262                 printf("%s:%d:%d XPT_SCSI_IO: "
2263                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2264                         ", flags: 0x%02x, "
2265                         "%db cmd/%db data/%db sense\n",
2266                         device_get_nameunit(sbp->fd.dev),
2267                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2268                         csio->cdb_io.cdb_bytes[0],
2269                         csio->cdb_io.cdb_bytes[1],
2270                         csio->cdb_io.cdb_bytes[2],
2271                         csio->cdb_io.cdb_bytes[3],
2272                         csio->cdb_io.cdb_bytes[4],
2273                         csio->cdb_io.cdb_bytes[5],
2274                         csio->cdb_io.cdb_bytes[6],
2275                         csio->cdb_io.cdb_bytes[7],
2276                         csio->cdb_io.cdb_bytes[8],
2277                         csio->cdb_io.cdb_bytes[9],
2278                         ccb->ccb_h.flags & CAM_DIR_MASK,
2279                         csio->cdb_len, csio->dxfer_len,
2280                         csio->sense_len);
2281 END_DEBUG
2282                 if(sdev == NULL){
2283                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2284                         xpt_done(ccb);
2285                         return;
2286                 }
2287 #if 0
2288                 /* if we are in probe stage, pass only probe commands */
2289                 if (sdev->status == SBP_DEV_PROBE) {
2290                         char *name;
2291                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2292                         printf("probe stage, periph name: %s\n", name);
2293                         if (strcmp(name, "probe") != 0) {
2294                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2295                                 xpt_done(ccb);
2296                                 return;
2297                         }
2298                 }
2299 #endif
2300                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2301                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2302                         xpt_done(ccb);
2303                         return;
2304                 }
2305
2306                 ocb->flags = OCB_ACT_CMD;
2307                 ocb->sdev = sdev;
2308                 ocb->ccb = ccb;
2309                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2310                 ocb->orb[0] = htonl(1 << 31);
2311                 ocb->orb[1] = 0;
2312                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2313                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2314                 speed = min(target->fwdev->speed, max_speed);
2315                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2316                                                 | ORB_CMD_MAXP(speed + 7));
2317                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2318                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2319                 }
2320
2321                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2322                         printf("sbp: CAM_SCATTER_VALID\n");
2323                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2324                         printf("sbp: CAM_DATA_PHYS\n");
2325
2326                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2327                         cdb = (void *)csio->cdb_io.cdb_ptr;
2328                 else
2329                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2330                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2331 /*
2332 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2333 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2334 */
2335                 if (ccb->csio.dxfer_len > 0) {
2336                         int error;
2337
2338                         crit_enter();
2339                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2340                                         /*dma map*/ocb->dmamap,
2341                                         ccb->csio.data_ptr,
2342                                         ccb->csio.dxfer_len,
2343                                         sbp_execute_ocb,
2344                                         ocb,
2345                                         /*flags*/0);
2346                         crit_exit();
2347                         if (error)
2348                                 printf("sbp: bus_dmamap_load error %d\n", error);
2349                 } else
2350                         sbp_execute_ocb(ocb, NULL, 0, 0);
2351                 break;
2352         }
2353         case XPT_CALC_GEOMETRY:
2354         {
2355                 struct ccb_calc_geometry *ccg;
2356 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2357                 u_int32_t size_mb;
2358                 u_int32_t secs_per_cylinder;
2359                 int extended = 1;
2360 #endif
2361
2362                 ccg = &ccb->ccg;
2363                 if (ccg->block_size == 0) {
2364                         printf("sbp_action1: block_size is 0.\n");
2365                         ccb->ccb_h.status = CAM_REQ_INVALID;
2366                         xpt_done(ccb);
2367                         break;
2368                 }
2369 SBP_DEBUG(1)
2370                 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2371 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2372                         "Volume size = %d\n",
2373 #else
2374                         "Volume size = %jd\n",
2375 #endif
2376                         device_get_nameunit(sbp->fd.dev),
2377                         cam_sim_path(sbp->sim),
2378                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2379 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2380                         (uintmax_t)
2381 #endif
2382                                 ccg->volume_size);
2383 END_DEBUG
2384
2385 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2386                 size_mb = ccg->volume_size
2387                         / ((1024L * 1024L) / ccg->block_size);
2388
2389                 if (size_mb > 1024 && extended) {
2390                         ccg->heads = 255;
2391                         ccg->secs_per_track = 63;
2392                 } else {
2393                         ccg->heads = 64;
2394                         ccg->secs_per_track = 32;
2395                 }
2396                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2397                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2398                 ccb->ccb_h.status = CAM_REQ_CMP;
2399 #else
2400                 cam_calc_geometry(ccg, /*extended*/1);
2401 #endif
2402                 xpt_done(ccb);
2403                 break;
2404         }
2405         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
2406         {
2407
2408 SBP_DEBUG(1)
2409                 printf("%s:%d:XPT_RESET_BUS: \n",
2410                         device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2411 END_DEBUG
2412
2413                 ccb->ccb_h.status = CAM_REQ_INVALID;
2414                 xpt_done(ccb);
2415                 break;
2416         }
2417         case XPT_PATH_INQ:              /* Path routing inquiry */
2418         {
2419                 struct ccb_pathinq *cpi = &ccb->cpi;
2420
2421 SBP_DEBUG(1)
2422                 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2423                         device_get_nameunit(sbp->fd.dev),
2424                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2425 END_DEBUG
2426                 cpi->version_num = 1; /* XXX??? */
2427                 cpi->hba_inquiry = PI_TAG_ABLE;
2428                 cpi->target_sprt = 0;
2429                 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2430                 cpi->hba_eng_cnt = 0;
2431                 cpi->max_target = SBP_NUM_TARGETS - 1;
2432                 cpi->max_lun = SBP_NUM_LUNS - 1;
2433                 cpi->initiator_id = SBP_INITIATOR;
2434                 cpi->bus_id = sim->bus_id;
2435                 cpi->base_transfer_speed = 400 * 1000 / 8;
2436                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2437                 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2438                 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2439                 cpi->unit_number = sim->unit_number;
2440
2441                 cpi->ccb_h.status = CAM_REQ_CMP;
2442                 xpt_done(ccb);
2443                 break;
2444         }
2445         case XPT_GET_TRAN_SETTINGS:
2446         {
2447                 struct ccb_trans_settings *cts = &ccb->cts;
2448 SBP_DEBUG(1)
2449                 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2450                         device_get_nameunit(sbp->fd.dev),
2451                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2452 END_DEBUG
2453                 /* Enable disconnect and tagged queuing */
2454                 cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
2455                 cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB;
2456
2457                 cts->ccb_h.status = CAM_REQ_CMP;
2458                 xpt_done(ccb);
2459                 break;
2460         }
2461         case XPT_ABORT:
2462                 ccb->ccb_h.status = CAM_UA_ABORT;
2463                 xpt_done(ccb);
2464                 break;
2465         case XPT_SET_TRAN_SETTINGS:
2466                 /* XXX */
2467         default:
2468                 ccb->ccb_h.status = CAM_REQ_INVALID;
2469                 xpt_done(ccb);
2470                 break;
2471         }
2472         return;
2473 }
2474
2475 static void
2476 sbp_action(struct cam_sim *sim, union ccb *ccb)
2477 {
2478         crit_enter();
2479         sbp_action1(sim, ccb);
2480         crit_exit();
2481 }
2482
2483 static void
2484 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2485 {
2486         int i;
2487         struct sbp_ocb *ocb;
2488         struct sbp_ocb *prev;
2489         bus_dma_segment_t *s;
2490
2491         if (error)
2492                 printf("sbp_execute_ocb: error=%d\n", error);
2493
2494         ocb = (struct sbp_ocb *)arg;
2495
2496 SBP_DEBUG(2)
2497         printf("sbp_execute_ocb: seg %d", seg);
2498         for (i = 0; i < seg; i++)
2499 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2500                 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2501 #else
2502                 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2503                                         (uintmax_t)segments[i].ds_len);
2504 #endif
2505         printf("\n");
2506 END_DEBUG
2507
2508         if (seg == 1) {
2509                 /* direct pointer */
2510                 s = &segments[0];
2511                 if (s->ds_len > SBP_SEG_MAX)
2512                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2513                 ocb->orb[3] = htonl(s->ds_addr);
2514                 ocb->orb[4] |= htonl(s->ds_len);
2515         } else if(seg > 1) {
2516                 /* page table */
2517                 for (i = 0; i < seg; i++) {
2518                         s = &segments[i];
2519 SBP_DEBUG(0)
2520                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2521                         if (s->ds_len < 16)
2522                                 printf("sbp_execute_ocb: warning, "
2523 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2524                                         "segment length(%d) is less than 16."
2525 #else
2526                                         "segment length(%zd) is less than 16."
2527 #endif
2528                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2529 END_DEBUG
2530                         if (s->ds_len > SBP_SEG_MAX)
2531                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2532                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2533                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2534                 }
2535                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2536         }
2537
2538         if (seg > 0)
2539                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2540                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2541                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2542         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2543         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2544         if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2545                 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2546                 sbp_orb_pointer(ocb->sdev, ocb);
2547         }
2548 }
2549
2550 static void
2551 sbp_poll(struct cam_sim *sim)
2552 {
2553         struct sbp_softc *sbp;
2554         struct firewire_comm *fc;
2555
2556         sbp = (struct sbp_softc *)sim->softc;
2557         fc = sbp->fd.fc;
2558
2559         fc->poll(fc, 0, -1);
2560
2561         return;
2562 }
2563
2564 static struct sbp_ocb *
2565 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2566 {
2567         struct sbp_ocb *ocb;
2568         struct sbp_ocb *next;
2569         int order = 0;
2570         int flags;
2571
2572         crit_enter();
2573
2574 SBP_DEBUG(1)
2575         sbp_show_sdev_info(sdev, 2);
2576         printf("%s: 0x%08x src %d\n",
2577             __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2578 END_DEBUG
2579         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2580                 next = STAILQ_NEXT(ocb, ocb);
2581                 flags = ocb->flags;
2582                 if (OCB_MATCH(ocb, sbp_status)) {
2583                         /* found */
2584                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2585                         if (ocb->ccb != NULL)
2586                                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2587                         if (ntohl(ocb->orb[4]) & 0xffff) {
2588                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2589                                         ocb->dmamap,
2590                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2591                                         BUS_DMASYNC_POSTREAD :
2592                                         BUS_DMASYNC_POSTWRITE);
2593                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2594                                         ocb->dmamap);
2595                         }
2596                         if (sbp_status->src == SRC_NO_NEXT) {
2597                                 if (next != NULL)
2598                                         sbp_orb_pointer(sdev, next);
2599                                 else if (order > 0) {
2600                                         /*
2601                                          * Unordered execution
2602                                          * We need to send pointer for
2603                                          * next ORB
2604                                          */
2605                                         sdev->flags |= ORB_LINK_DEAD;
2606                                 }
2607                         }
2608                         break;
2609                 } else
2610                         order ++;
2611         }
2612         crit_exit();
2613 SBP_DEBUG(0)
2614         if (ocb && order > 0) {
2615                 sbp_show_sdev_info(sdev, 2);
2616                 printf("unordered execution order:%d\n", order);
2617         }
2618 END_DEBUG
2619         return (ocb);
2620 }
2621
2622 static struct sbp_ocb *
2623 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2624 {
2625         struct sbp_ocb *prev;
2626
2627         crit_enter();
2628
2629 SBP_DEBUG(1)
2630         sbp_show_sdev_info(sdev, 2);
2631 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2632         printf("%s: 0x%08x\n", __func__, ocb->bus_addr);
2633 #else
2634         printf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2635 #endif
2636 END_DEBUG
2637         prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2638         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2639
2640         if (ocb->ccb != NULL)
2641                 callout_reset(&ocb->ccb->ccb_h.timeout_ch,
2642                     (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb);
2643
2644         if (prev != NULL) {
2645 SBP_DEBUG(2)
2646 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2647                 printf("linking chain 0x%x -> 0x%x\n",
2648                     prev->bus_addr, ocb->bus_addr);
2649 #else
2650                 printf("linking chain 0x%jx -> 0x%jx\n",
2651                     (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2652 #endif
2653 END_DEBUG
2654                 prev->orb[1] = htonl(ocb->bus_addr);
2655                 prev->orb[0] = 0;
2656         }
2657         crit_exit();
2658
2659         return prev;
2660 }
2661
2662 static struct sbp_ocb *
2663 sbp_get_ocb(struct sbp_dev *sdev)
2664 {
2665         struct sbp_ocb *ocb;
2666
2667         crit_enter();
2668         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2669         if (ocb == NULL) {
2670                 printf("ocb shortage!!!\n");
2671                 return NULL;
2672         }
2673         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2674         crit_exit();
2675         ocb->ccb = NULL;
2676         return (ocb);
2677 }
2678
2679 static void
2680 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2681 {
2682         ocb->flags = 0;
2683         ocb->ccb = NULL;
2684         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2685 }
2686
2687 static void
2688 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2689 {
2690         struct sbp_dev *sdev;
2691
2692         sdev = ocb->sdev;
2693 SBP_DEBUG(0)
2694         sbp_show_sdev_info(sdev, 2);
2695 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2696         printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2697 #else
2698         printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2699 #endif
2700 END_DEBUG
2701 SBP_DEBUG(1)
2702         if (ocb->ccb != NULL)
2703                 sbp_print_scsi_cmd(ocb);
2704 END_DEBUG
2705         if (ntohl(ocb->orb[4]) & 0xffff) {
2706                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2707                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2708                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2709                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2710         }
2711         if (ocb->ccb != NULL) {
2712                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2713                 ocb->ccb->ccb_h.status = status;
2714                 xpt_done(ocb->ccb);
2715         }
2716         sbp_free_ocb(sdev, ocb);
2717 }
2718
2719 static void
2720 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2721 {
2722         struct sbp_ocb *ocb, *next;
2723         STAILQ_HEAD(, sbp_ocb) temp;
2724
2725         crit_enter();
2726         bcopy(&sdev->ocbs, &temp, sizeof(temp));
2727         STAILQ_INIT(&sdev->ocbs);
2728         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2729                 next = STAILQ_NEXT(ocb, ocb);
2730                 sbp_abort_ocb(ocb, status);
2731         }
2732         crit_exit();
2733 }
2734
2735 static devclass_t sbp_devclass;
2736
2737 /*
2738  * Because sbp is a static device that always exists under any attached
2739  * firewire device, and not scanned by the firewire device, we need an
2740  * identify function to install the device.  For our sanity we want
2741  * the sbp device to have the same unit number as the fireweire device.
2742  */
2743
2744 static device_method_t sbp_methods[] = {
2745         /* device interface */
2746         DEVMETHOD(device_identify,      bus_generic_identify_sameunit),
2747         DEVMETHOD(device_probe,         sbp_probe),
2748         DEVMETHOD(device_attach,        sbp_attach),
2749         DEVMETHOD(device_detach,        sbp_detach),
2750         DEVMETHOD(device_shutdown,      sbp_shutdown),
2751
2752         { 0, 0 }
2753 };
2754
2755 static driver_t sbp_driver = {
2756         "sbp",
2757         sbp_methods,
2758         sizeof(struct sbp_softc),
2759 };
2760
2761 DECLARE_DUMMY_MODULE(sbp);
2762 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2763 MODULE_VERSION(sbp, 1);
2764 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2765 MODULE_DEPEND(sbp, cam, 1, 1, 1);