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 1.27 2008/02/10 00:01:03 pavalos 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 #if 0
 107 static int sbp_cold = 1;
 108 #endif
 109 static int ex_login = 1;
 110 static int login_delay = 1000;  /* msec */
 111 static int scan_delay = 500;    /* msec */
 112 static int sbp_tags = 0;
 113
 114 SYSCTL_DECL(_hw_firewire);
 115 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
 116 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
 117         "SBP debug flag");
 118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
 119         "SBP perform login automatically");
 120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
 121         "SBP transfer max speed");
 122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
 123         &ex_login, 0, "SBP transfer max speed");
 124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
 125         &login_delay, 0, "SBP login delay in msec");
 126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
 127         &scan_delay, 0, "SBP scan delay in msec");
 128 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
 129         "SBP tagged queuing support");
 130
 131 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
 132 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
 133 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
 134 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
 135 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
 136 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
 137
 138 #define NEED_RESPONSE 0
 139
 140 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
 141 #ifdef __sparc64__ /* iommu */
 142 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
 143 #else
 144 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
 145 #endif
 146 struct sbp_ocb {
 147         STAILQ_ENTRY(sbp_ocb)   ocb;
 148         union ccb       *ccb;
 149         bus_addr_t      bus_addr;
 150         u_int32_t       orb[8];
 151 #define IND_PTR_OFFSET  (8*sizeof(u_int32_t))
 152         struct ind_ptr  ind_ptr[SBP_IND_MAX];
 153         struct sbp_dev  *sdev;
 154         int             flags; /* XXX should be removed */
 155         bus_dmamap_t    dmamap;
 156 };
 157
 158 #define OCB_ACT_MGM 0
 159 #define OCB_ACT_CMD 1
 160 #define OCB_MATCH(o,s)  ((o)->bus_addr == ntohl((s)->orb_lo))
 161
 162 struct sbp_dev{
 163 #define SBP_DEV_RESET           0       /* accept login */
 164 #define SBP_DEV_LOGIN           1       /* to login */
 165 #if 0
 166 #define SBP_DEV_RECONN          2       /* to reconnect */
 167 #endif
 168 #define SBP_DEV_TOATTACH        3       /* to attach */
 169 #define SBP_DEV_PROBE           4       /* scan lun */
 170 #define SBP_DEV_ATTACHED        5       /* in operation */
 171 #define SBP_DEV_DEAD            6       /* unavailable unit */
 172 #define SBP_DEV_RETRY           7       /* unavailable unit */
 173         u_int8_t status:4,
 174                  timeout:4;
 175         u_int8_t type;
 176         u_int16_t lun_id;
 177         u_int16_t freeze;
 178 #define ORB_LINK_DEAD           (1 << 0)
 179 #define VALID_LUN               (1 << 1)
 180 #define ORB_POINTER_ACTIVE      (1 << 2)
 181 #define ORB_POINTER_NEED        (1 << 3)
 182         u_int16_t flags;
 183         struct cam_path *path;
 184         struct sbp_target *target;
 185         struct fwdma_alloc dma;
 186         struct sbp_login_res *login;
 187         struct callout login_callout;
 188         struct sbp_ocb *ocb;
 189         STAILQ_HEAD(, sbp_ocb) ocbs;
 190         STAILQ_HEAD(, sbp_ocb) free_ocbs;
 191         char vendor[32];
 192         char product[32];
 193         char revision[10];
 194 };
 195
 196 struct sbp_target {
 197         int target_id;
 198         int num_lun;
 199         struct sbp_dev  **luns;
 200         struct sbp_softc *sbp;
 201         struct fw_device *fwdev;
 202         u_int32_t mgm_hi, mgm_lo;
 203         struct sbp_ocb *mgm_ocb_cur;
 204         STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
 205         struct callout mgm_ocb_timeout;
 206         struct callout scan_callout;
 207         STAILQ_HEAD(, fw_xfer) xferlist;
 208         int n_xfer;
 209 };
 210
 211 struct sbp_softc {
 212         struct firewire_dev_comm fd;
 213         struct cam_sim  *sim;
 214         struct cam_path  *path;
 215         struct sbp_target targets[SBP_NUM_TARGETS];
 216         struct fw_bind fwb;
 217         bus_dma_tag_t   dmat;
 218         struct timeval last_busreset;
 219 #define SIMQ_FREEZED 1
 220         int flags;
 221 };
 222
 223 static void sbp_post_explore (void *);
 224 static void sbp_recv (struct fw_xfer *);
 225 static void sbp_mgm_callback (struct fw_xfer *);
 226 #if 0
 227 static void sbp_cmd_callback (struct fw_xfer *);
 228 #endif
 229 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
 230 static void sbp_execute_ocb (void *,  bus_dma_segment_t *, int, int);
 231 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
 232 static void sbp_abort_ocb (struct sbp_ocb *, int);
 233 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
 234 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
 235 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
 236 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
 237 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
 238 static void sbp_cam_detach_sdev(struct sbp_dev *);
 239 static void sbp_free_sdev(struct sbp_dev *);
 240 static void sbp_cam_detach_target (struct sbp_target *);
 241 static void sbp_free_target (struct sbp_target *);
 242 static void sbp_mgm_timeout (void *arg);
 243 static void sbp_timeout (void *arg);
 244 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
 245
 246 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
 247
 248 /* cam related functions */
 249 static void     sbp_action(struct cam_sim *sim, union ccb *ccb);
 250 static void     sbp_poll(struct cam_sim *sim);
 251 static void     sbp_cam_scan_lun(struct cam_periph *, union ccb *);
 252 static void     sbp_cam_scan_target(void *arg);
 253
 254 static char *orb_status0[] = {
 255         /* 0 */ "No additional information to report",
 256         /* 1 */ "Request type not supported",
 257         /* 2 */ "Speed not supported",
 258         /* 3 */ "Page size not supported",
 259         /* 4 */ "Access denied",
 260         /* 5 */ "Logical unit not supported",
 261         /* 6 */ "Maximum payload too small",
 262         /* 7 */ "Reserved for future standardization",
 263         /* 8 */ "Resources unavailable",
 264         /* 9 */ "Function rejected",
 265         /* A */ "Login ID not recognized",
 266         /* B */ "Dummy ORB completed",
 267         /* C */ "Request aborted",
 268         /* FF */ "Unspecified error"
 269 #define MAX_ORB_STATUS0 0xd
 270 };
 271
 272 static char *orb_status1_object[] = {
 273         /* 0 */ "Operation request block (ORB)",
 274         /* 1 */ "Data buffer",
 275         /* 2 */ "Page table",
 276         /* 3 */ "Unable to specify"
 277 };
 278
 279 static char *orb_status1_serial_bus_error[] = {
 280         /* 0 */ "Missing acknowledge",
 281         /* 1 */ "Reserved; not to be used",
 282         /* 2 */ "Time-out error",
 283         /* 3 */ "Reserved; not to be used",
 284         /* 4 */ "Busy retry limit exceeded(X)",
 285         /* 5 */ "Busy retry limit exceeded(A)",
 286         /* 6 */ "Busy retry limit exceeded(B)",
 287         /* 7 */ "Reserved for future standardization",
 288         /* 8 */ "Reserved for future standardization",
 289         /* 9 */ "Reserved for future standardization",
 290         /* A */ "Reserved for future standardization",
 291         /* B */ "Tardy retry limit exceeded",
 292         /* C */ "Conflict error",
 293         /* D */ "Data error",
 294         /* E */ "Type error",
 295         /* F */ "Address error"
 296 };
 297
 298 /*
 299  * sbp_probe()
 300  */
 301 static int
 302 sbp_probe(device_t dev)
 303 {
 304         device_t pa;
 305
 306 SBP_DEBUG(0)
 307         kprintf("sbp_probe\n");
 308 END_DEBUG
 309
 310         pa = device_get_parent(dev);
 311         if(device_get_unit(dev) != device_get_unit(pa)){
 312                 return(ENXIO);
 313         }
 314
 315         device_set_desc(dev, "SBP-2/SCSI over FireWire");
 316
 317         if (bootverbose)
 318                 debug = bootverbose;
 319         return (0);
 320 }
 321
 322 static void
 323 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
 324 {
 325         struct fw_device *fwdev;
 326
 327         kprintf("%s:%d:%d ",
 328                 device_get_nameunit(sdev->target->sbp->fd.dev),
 329                 sdev->target->target_id,
 330                 sdev->lun_id
 331         );
 332         if (new == 2) {
 333                 return;
 334         }
 335         fwdev = sdev->target->fwdev;
 336         kprintf("ordered:%d type:%d EUI:%08x%08x node:%d "
 337                 "speed:%d maxrec:%d",
 338                 (sdev->type & 0x40) >> 6,
 339                 (sdev->type & 0x1f),
 340                 fwdev->eui.hi,
 341                 fwdev->eui.lo,
 342                 fwdev->dst,
 343                 fwdev->speed,
 344                 fwdev->maxrec
 345         );
 346         if (new)
 347                 kprintf(" new!\n");
 348         else
 349                 kprintf("\n");
 350         sbp_show_sdev_info(sdev, 2);
 351         kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
 352 }
 353
 354 static struct {
 355         int bus;
 356         int target;
 357         struct fw_eui64 eui;
 358 } wired[] = {
 359         /* Bus  Target  EUI64 */
 360 #if 0
 361         {0,     2,      {0x00018ea0, 0x01fd0154}},      /* Logitec HDD */
 362         {0,     0,      {0x00018ea6, 0x00100682}},      /* Logitec DVD */
 363         {0,     1,      {0x00d03200, 0xa412006a}},      /* Yano HDD */
 364 #endif
 365         {-1,    -1,     {0,0}}
 366 };
 367
 368 static int
 369 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 370 {
 371         int bus, i, target=-1;
 372         char w[SBP_NUM_TARGETS];
 373
 374         bzero(w, sizeof(w));
 375         bus = device_get_unit(sbp->fd.dev);
 376
 377         /* XXX wired-down configuration should be gotten from
 378                                         tunable or device hint */
 379         for (i = 0; wired[i].bus >= 0; i ++) {
 380                 if (wired[i].bus == bus) {
 381                         w[wired[i].target] = 1;
 382                         if (wired[i].eui.hi == fwdev->eui.hi &&
 383                                         wired[i].eui.lo == fwdev->eui.lo)
 384                                 target = wired[i].target;
 385                 }
 386         }
 387         if (target >= 0) {
 388                 if(target < SBP_NUM_TARGETS &&
 389                                 sbp->targets[target].fwdev == NULL)
 390                         return(target);
 391                 device_printf(sbp->fd.dev,
 392                         "target %d is not free for %08x:%08x\n",
 393                         target, fwdev->eui.hi, fwdev->eui.lo);
 394                 target = -1;
 395         }
 396         /* non-wired target */
 397         for (i = 0; i < SBP_NUM_TARGETS; i ++)
 398                 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
 399                         target = i;
 400                         break;
 401                 }
 402
 403         return target;
 404 }
 405
 406 static void
 407 sbp_alloc_lun(struct sbp_target *target)
 408 {
 409         struct crom_context cc;
 410         struct csrreg *reg;
 411         struct sbp_dev *sdev, **newluns;
 412         struct sbp_softc *sbp;
 413         int maxlun, lun, i;
 414
 415         sbp = target->sbp;
 416         crom_init_context(&cc, target->fwdev->csrrom);
 417         /* XXX shoud parse appropriate unit directories only */
 418         maxlun = -1;
 419         while (cc.depth >= 0) {
 420                 reg = crom_search_key(&cc, CROM_LUN);
 421                 if (reg == NULL)
 422                         break;
 423                 lun = reg->val & 0xffff;
 424 SBP_DEBUG(0)
 425                 kprintf("target %d lun %d found\n", target->target_id, lun);
 426 END_DEBUG
 427                 if (maxlun < lun)
 428                         maxlun = lun;
 429                 crom_next(&cc);
 430         }
 431         if (maxlun < 0)
 432                 kprintf("%s:%d no LUN found\n",
 433                     device_get_nameunit(target->sbp->fd.dev),
 434                     target->target_id);
 435
 436         maxlun ++;
 437         if (maxlun >= SBP_NUM_LUNS)
 438                 maxlun = SBP_NUM_LUNS;
 439
 440         /* Invalidiate stale devices */
 441         for (lun = 0; lun < target->num_lun; lun ++) {
 442                 sdev = target->luns[lun];
 443                 if (sdev == NULL)
 444                         continue;
 445                 sdev->flags &= ~VALID_LUN;
 446                 if (lun >= maxlun) {
 447                         /* lost device */
 448                         sbp_cam_detach_sdev(sdev);
 449                         sbp_free_sdev(sdev);
 450                 }
 451         }
 452
 453         /* Reallocate */
 454         if (maxlun != target->num_lun) {
 455                 /*
 456                  * note: krealloc() does not support M_ZERO.  We must zero
 457                  * the extended region manually.
 458                  */
 459                 newluns = krealloc(target->luns,
 460                                 sizeof(struct sbp_dev *) * maxlun,
 461                                 M_SBP, M_WAITOK);
 462
 463                 if (maxlun > target->num_lun) {
 464                         bzero(&newluns[target->num_lun],
 465                             sizeof(struct sbp_dev *) *
 466                              (maxlun - target->num_lun));
 467                 }
 468                 target->luns = newluns;
 469                 target->num_lun = maxlun;
 470         }
 471
 472         crom_init_context(&cc, target->fwdev->csrrom);
 473         while (cc.depth >= 0) {
 474                 int new = 0;
 475
 476                 reg = crom_search_key(&cc, CROM_LUN);
 477                 if (reg == NULL)
 478                         break;
 479                 lun = reg->val & 0xffff;
 480                 if (lun >= SBP_NUM_LUNS) {
 481                         kprintf("too large lun %d\n", lun);
 482                         goto next;
 483                 }
 484
 485                 sdev = target->luns[lun];
 486                 if (sdev == NULL) {
 487                         sdev = kmalloc(sizeof(struct sbp_dev),
 488                             M_SBP, M_WAITOK | M_ZERO);
 489                         target->luns[lun] = sdev;
 490                         sdev->lun_id = lun;
 491                         sdev->target = target;
 492                         STAILQ_INIT(&sdev->ocbs);
 493                         CALLOUT_INIT(&sdev->login_callout);
 494                         sdev->status = SBP_DEV_RESET;
 495                         new = 1;
 496                 }
 497                 sdev->flags |= VALID_LUN;
 498                 sdev->type = (reg->val & 0xff0000) >> 16;
 499
 500                 if (new == 0)
 501                         goto next;
 502
 503                 fwdma_malloc(sbp->fd.fc,
 504                         /* alignment */ sizeof(u_int32_t),
 505                         SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
 506                 if (sdev->dma.v_addr == NULL) {
 507                         kprintf("%s: dma space allocation failed\n",
 508                                                         __func__);
 509                         kfree(sdev, M_SBP);
 510                         target->luns[lun] = NULL;
 511                         goto next;
 512                 }
 513                 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
 514                 sdev->ocb = (struct sbp_ocb *)
 515                                 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
 516                 bzero((char *)sdev->ocb,
 517                         sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
 518
 519                 STAILQ_INIT(&sdev->free_ocbs);
 520                 for (i = 0; i < SBP_QUEUE_LEN; i++) {
 521                         struct sbp_ocb *ocb;
 522                         ocb = &sdev->ocb[i];
 523                         ocb->bus_addr = sdev->dma.bus_addr
 524                                 + SBP_LOGIN_SIZE
 525                                 + sizeof(struct sbp_ocb) * i
 526                                 + offsetof(struct sbp_ocb, orb[0]);
 527                         if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
 528                                 kprintf("sbp_attach: cannot create dmamap\n");
 529                                 /* XXX */
 530                                 goto next;
 531                         }
 532                         sbp_free_ocb(sdev, ocb);
 533                 }
 534 next:
 535                 crom_next(&cc);
 536         }
 537
 538         for (lun = 0; lun < target->num_lun; lun ++) {
 539                 sdev = target->luns[lun];
 540                 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
 541                         sbp_cam_detach_sdev(sdev);
 542                         sbp_free_sdev(sdev);
 543                         target->luns[lun] = NULL;
 544                 }
 545         }
 546 }
 547
 548 static struct sbp_target *
 549 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
 550 {
 551         int i;
 552         struct sbp_target *target;
 553         struct crom_context cc;
 554         struct csrreg *reg;
 555
 556 SBP_DEBUG(1)
 557         kprintf("sbp_alloc_target\n");
 558 END_DEBUG
 559         i = sbp_new_target(sbp, fwdev);
 560         if (i < 0) {
 561                 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
 562                 return NULL;
 563         }
 564         /* new target */
 565         target = &sbp->targets[i];
 566         target->sbp = sbp;
 567         target->fwdev = fwdev;
 568         target->target_id = i;
 569         /* XXX we may want to reload mgm port after each bus reset */
 570         /* XXX there might be multiple management agents */
 571         crom_init_context(&cc, target->fwdev->csrrom);
 572         reg = crom_search_key(&cc, CROM_MGM);
 573         if (reg == NULL || reg->val == 0) {
 574                 kprintf("NULL management address\n");
 575                 target->fwdev = NULL;
 576                 return NULL;
 577         }
 578         target->mgm_hi = 0xffff;
 579         target->mgm_lo = 0xf0000000 | (reg->val << 2);
 580         target->mgm_ocb_cur = NULL;
 581 SBP_DEBUG(1)
 582         kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo);
 583 END_DEBUG
 584         STAILQ_INIT(&target->xferlist);
 585         target->n_xfer = 0;
 586         STAILQ_INIT(&target->mgm_ocb_queue);
 587         CALLOUT_INIT(&target->mgm_ocb_timeout);
 588         CALLOUT_INIT(&target->scan_callout);
 589
 590         target->luns = NULL;
 591         target->num_lun = 0;
 592         return target;
 593 }
 594
 595 static void
 596 sbp_probe_lun(struct sbp_dev *sdev)
 597 {
 598         struct fw_device *fwdev;
 599         struct crom_context c, *cc = &c;
 600         struct csrreg *reg;
 601
 602         bzero(sdev->vendor, sizeof(sdev->vendor));
 603         bzero(sdev->product, sizeof(sdev->product));
 604
 605         fwdev = sdev->target->fwdev;
 606         crom_init_context(cc, fwdev->csrrom);
 607         /* get vendor string */
 608         crom_search_key(cc, CSRKEY_VENDOR);
 609         crom_next(cc);
 610         crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
 611         /* skip to the unit directory for SBP-2 */
 612         while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
 613                 if (reg->val == CSRVAL_T10SBP2)
 614                         break;
 615                 crom_next(cc);
 616         }
 617         /* get firmware revision */
 618         reg = crom_search_key(cc, CSRKEY_FIRM_VER);
 619         if (reg != NULL)
 620                 ksnprintf(sdev->revision, sizeof(sdev->revision),
 621                                                 "%06x", reg->val);
 622         /* get product string */
 623         crom_search_key(cc, CSRKEY_MODEL);
 624         crom_next(cc);
 625         crom_parse_text(cc, sdev->product, sizeof(sdev->product));
 626 }
 627
 628 static void
 629 sbp_login_callout(void *arg)
 630 {
 631         struct sbp_dev *sdev = (struct sbp_dev *)arg;
 632         sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
 633 }
 634
 635 static void
 636 sbp_login(struct sbp_dev *sdev)
 637 {
 638         struct timeval delta;
 639         struct timeval t;
 640         int ticks = 0;
 641
 642         microtime(&delta);
 643         timevalsub(&delta, &sdev->target->sbp->last_busreset);
 644         t.tv_sec = login_delay / 1000;
 645         t.tv_usec = (login_delay % 1000) * 1000;
 646         timevalsub(&t, &delta);
 647         if (t.tv_sec >= 0 && t.tv_usec > 0)
 648                 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
 649 SBP_DEBUG(0)
 650         kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
 651             t.tv_sec, t.tv_usec, ticks);
 652 END_DEBUG
 653         callout_reset(&sdev->login_callout, ticks,
 654                         sbp_login_callout, (void *)(sdev));
 655 }
 656
 657 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
 658         && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
 659
 660 static void
 661 sbp_probe_target(void *arg)
 662 {
 663         struct sbp_target *target = (struct sbp_target *)arg;
 664         struct sbp_softc *sbp;
 665         struct sbp_dev *sdev;
 666         struct firewire_comm *fc;
 667         int i, alive;
 668
 669         alive = SBP_FWDEV_ALIVE(target->fwdev);
 670 SBP_DEBUG(1)
 671         kprintf("sbp_probe_target %d\n", target->target_id);
 672         if (!alive)
 673                 kprintf("not alive\n");
 674 END_DEBUG
 675
 676         sbp = target->sbp;
 677         fc = target->sbp->fd.fc;
 678         sbp_alloc_lun(target);
 679
 680         /* XXX callout_stop mgm_ocb and dequeue */
 681         for (i=0; i < target->num_lun; i++) {
 682                 sdev = target->luns[i];
 683                 if (sdev == NULL)
 684                         continue;
 685                 if (alive && (sdev->status != SBP_DEV_DEAD)) {
 686                         if (sdev->path != NULL) {
 687                                 xpt_freeze_devq(sdev->path, 1);
 688                                 sdev->freeze ++;
 689                         }
 690                         sbp_probe_lun(sdev);
 691 SBP_DEBUG(0)
 692                         sbp_show_sdev_info(sdev,
 693                                         (sdev->status == SBP_DEV_RESET));
 694 END_DEBUG
 695
 696                         sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 697                         switch (sdev->status) {
 698                         case SBP_DEV_RESET:
 699                                 /* new or revived target */
 700                                 if (auto_login)
 701                                         sbp_login(sdev);
 702                                 break;
 703                         case SBP_DEV_TOATTACH:
 704                         case SBP_DEV_PROBE:
 705                         case SBP_DEV_ATTACHED:
 706                         case SBP_DEV_RETRY:
 707                         default:
 708                                 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
 709                                 break;
 710                         }
 711                 } else {
 712                         switch (sdev->status) {
 713                         case SBP_DEV_ATTACHED:
 714 SBP_DEBUG(0)
 715                                 /* the device has gone */
 716                                 sbp_show_sdev_info(sdev, 2);
 717                                 kprintf("lost target\n");
 718 END_DEBUG
 719                                 if (sdev->path) {
 720                                         xpt_freeze_devq(sdev->path, 1);
 721                                         sdev->freeze ++;
 722                                 }
 723                                 sdev->status = SBP_DEV_RETRY;
 724                                 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
 725                                 break;
 726                         case SBP_DEV_PROBE:
 727                         case SBP_DEV_TOATTACH:
 728                                 sdev->status = SBP_DEV_RESET;
 729                                 break;
 730                         case SBP_DEV_RETRY:
 731                         case SBP_DEV_RESET:
 732                         case SBP_DEV_DEAD:
 733                                 break;
 734                         }
 735                 }
 736         }
 737 }
 738
 739 static void
 740 sbp_post_busreset(void *arg)
 741 {
 742         struct sbp_softc *sbp;
 743
 744         sbp = (struct sbp_softc *)arg;
 745 SBP_DEBUG(0)
 746         kprintf("sbp_post_busreset\n");
 747 END_DEBUG
 748         if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
 749                 xpt_freeze_simq(sbp->sim, /*count*/1);
 750                 sbp->sim->flags |= SIMQ_FREEZED;
 751         }
 752         microtime(&sbp->last_busreset);
 753 }
 754
 755 static void
 756 sbp_post_explore(void *arg)
 757 {
 758         struct sbp_softc *sbp = (struct sbp_softc *)arg;
 759         struct sbp_target *target;
 760         struct fw_device *fwdev;
 761         int i, alive;
 762
 763 SBP_DEBUG(0)
 764         kprintf("sbp_post_explore\n");
 765 END_DEBUG
 766 #if 0
 767         if (sbp_cold > 0)
 768                 sbp_cold --;
 769 #endif
 770
 771 #if 0
 772         /*
 773          * XXX don't let CAM the bus rest.
 774          * CAM tries to do something with freezed (DEV_RETRY) devices.
 775          */
 776         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
 777 #endif
 778
 779         /* Gabage Collection */
 780         for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 781                 target = &sbp->targets[i];
 782                 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
 783                         if (target->fwdev == NULL || target->fwdev == fwdev)
 784                                 break;
 785                 if (fwdev == NULL) {
 786                         /* device has removed in lower driver */
 787                         sbp_cam_detach_target(target);
 788                         sbp_free_target(target);
 789                 }
 790         }
 791         /* traverse device list */
 792         STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
 793 SBP_DEBUG(0)
 794                 kprintf("sbp_post_explore: EUI:%08x%08x ",
 795                                 fwdev->eui.hi, fwdev->eui.lo);
 796                 if (fwdev->status != FWDEVATTACHED)
 797                         kprintf("not attached, state=%d.\n", fwdev->status);
 798                 else
 799                         kprintf("attached\n");
 800 END_DEBUG
 801                 alive = SBP_FWDEV_ALIVE(fwdev);
 802                 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
 803                         target = &sbp->targets[i];
 804                         if(target->fwdev == fwdev ) {
 805                                 /* known target */
 806                                 break;
 807                         }
 808                 }
 809                 if(i == SBP_NUM_TARGETS){
 810                         if (alive) {
 811                                 /* new target */
 812                                 target = sbp_alloc_target(sbp, fwdev);
 813                                 if (target == NULL)
 814                                         continue;
 815                         } else {
 816                                 continue;
 817                         }
 818                 }
 819                 sbp_probe_target((void *)target);
 820                 if (target->num_lun == 0)
 821                         sbp_free_target(target);
 822         }
 823         xpt_release_simq(sbp->sim, /*run queue*/TRUE);
 824         sbp->sim->flags &= ~SIMQ_FREEZED;
 825 }
 826
 827 #if NEED_RESPONSE
 828 static void
 829 sbp_loginres_callback(struct fw_xfer *xfer){
 830         struct sbp_dev *sdev;
 831         sdev = (struct sbp_dev *)xfer->sc;
 832 SBP_DEBUG(1)
 833         sbp_show_sdev_info(sdev, 2);
 834         kprintf("sbp_loginres_callback\n");
 835 END_DEBUG
 836         /* recycle */
 837         crit_enter();
 838         STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
 839         crit_exit();
 840         return;
 841 }
 842 #endif
 843
 844 static __inline void
 845 sbp_xfer_free(struct fw_xfer *xfer)
 846 {
 847         struct sbp_dev *sdev;
 848
 849         sdev = (struct sbp_dev *)xfer->sc;
 850         fw_xfer_unload(xfer);
 851         crit_enter();
 852         STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
 853         crit_exit();
 854 }
 855
 856 static void
 857 sbp_reset_start_callback(struct fw_xfer *xfer)
 858 {
 859         struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
 860         struct sbp_target *target = sdev->target;
 861         int i;
 862
 863         if (xfer->resp != 0) {
 864                 sbp_show_sdev_info(sdev, 2);
 865                 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp);
 866         }
 867
 868         for (i = 0; i < target->num_lun; i++) {
 869                 tsdev = target->luns[i];
 870                 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
 871                         sbp_login(tsdev);
 872         }
 873 }
 874
 875 static void
 876 sbp_reset_start(struct sbp_dev *sdev)
 877 {
 878         struct fw_xfer *xfer;
 879         struct fw_pkt *fp;
 880
 881 SBP_DEBUG(0)
 882         sbp_show_sdev_info(sdev, 2);
 883         kprintf("sbp_reset_start\n");
 884 END_DEBUG
 885
 886         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
 887         xfer->act.hand = sbp_reset_start_callback;
 888         fp = &xfer->send.hdr;
 889         fp->mode.wreqq.dest_hi = 0xffff;
 890         fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
 891         fp->mode.wreqq.data = htonl(0xf);
 892         fw_asyreq(xfer->fc, -1, xfer);
 893 }
 894
 895 static void
 896 sbp_mgm_callback(struct fw_xfer *xfer)
 897 {
 898         struct sbp_dev *sdev;
 899         int resp;
 900
 901         sdev = (struct sbp_dev *)xfer->sc;
 902
 903 SBP_DEBUG(1)
 904         sbp_show_sdev_info(sdev, 2);
 905         kprintf("sbp_mgm_callback\n");
 906 END_DEBUG
 907         resp = xfer->resp;
 908         sbp_xfer_free(xfer);
 909 #if 0
 910         if (resp != 0) {
 911                 sbp_show_sdev_info(sdev, 2);
 912                 kprintf("management ORB failed(%d) ... RESET_START\n", resp);
 913                 sbp_reset_start(sdev);
 914         }
 915 #endif
 916         return;
 917 }
 918
 919 static struct sbp_dev *
 920 sbp_next_dev(struct sbp_target *target, int lun)
 921 {
 922         struct sbp_dev **sdevp;
 923         int i;
 924
 925         for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
 926             i++, sdevp++)
 927                 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
 928                         return(*sdevp);
 929         return(NULL);
 930 }
 931
 932 #define SCAN_PRI 1
 933 static void
 934 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
 935 {
 936         struct sbp_target *target;
 937         struct sbp_dev *sdev;
 938
 939         sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
 940         target = sdev->target;
 941 SBP_DEBUG(0)
 942         sbp_show_sdev_info(sdev, 2);
 943         kprintf("sbp_cam_scan_lun\n");
 944 END_DEBUG
 945         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 946                 sdev->status = SBP_DEV_ATTACHED;
 947         } else {
 948                 sbp_show_sdev_info(sdev, 2);
 949                 kprintf("scan failed\n");
 950         }
 951         sdev = sbp_next_dev(target, sdev->lun_id + 1);
 952         if (sdev == NULL) {
 953                 kfree(ccb, M_SBP);
 954                 return;
 955         }
 956         /* reuse ccb */
 957         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 958         ccb->ccb_h.ccb_sdev_ptr = sdev;
 959         xpt_action(ccb);
 960         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 961         sdev->freeze = 1;
 962 }
 963
 964 static void
 965 sbp_cam_scan_target(void *arg)
 966 {
 967         struct sbp_target *target = (struct sbp_target *)arg;
 968         struct sbp_dev *sdev;
 969         union ccb *ccb;
 970
 971         sdev = sbp_next_dev(target, 0);
 972         if (sdev == NULL) {
 973                 kprintf("sbp_cam_scan_target: nothing to do for target%d\n",
 974                                                         target->target_id);
 975                 return;
 976         }
 977 SBP_DEBUG(0)
 978         sbp_show_sdev_info(sdev, 2);
 979         kprintf("sbp_cam_scan_target\n");
 980 END_DEBUG
 981         ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
 982         xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
 983         ccb->ccb_h.func_code = XPT_SCAN_LUN;
 984         ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
 985         ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 986         ccb->crcn.flags = CAM_FLAG_NONE;
 987         ccb->ccb_h.ccb_sdev_ptr = sdev;
 988
 989         /* The scan is in progress now. */
 990         xpt_action(ccb);
 991         xpt_release_devq(sdev->path, sdev->freeze, TRUE);
 992         sdev->freeze = 1;
 993 }
 994
 995 static __inline void
 996 sbp_scan_dev(struct sbp_dev *sdev)
 997 {
 998         sdev->status = SBP_DEV_PROBE;
 999         callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1000                         sbp_cam_scan_target, (void *)sdev->target);
1001 }
1002
1003 static void
1004 sbp_do_attach(struct fw_xfer *xfer)
1005 {
1006         struct sbp_dev *sdev;
1007         struct sbp_target *target;
1008         struct sbp_softc *sbp;
1009
1010         sdev = (struct sbp_dev *)xfer->sc;
1011         target = sdev->target;
1012         sbp = target->sbp;
1013 SBP_DEBUG(0)
1014         sbp_show_sdev_info(sdev, 2);
1015         kprintf("sbp_do_attach\n");
1016 END_DEBUG
1017         sbp_xfer_free(xfer);
1018
1019         if (sdev->path == NULL)
1020                 xpt_create_path(&sdev->path, xpt_periph,
1021                         cam_sim_path(target->sbp->sim),
1022                         target->target_id, sdev->lun_id);
1023
1024 #if 0
1025         /*
1026          * Let CAM scan the bus if we are in the boot process.
1027          * XXX xpt_scan_bus cannot detect LUN larger than 0
1028          * if LUN 0 doesn't exists.
1029          */
1030         if (sbp_cold > 0) {
1031                 sdev->status = SBP_DEV_ATTACHED;
1032                 return;
1033         }
1034 #endif
1035
1036         sbp_scan_dev(sdev);
1037         return;
1038 }
1039
1040 static void
1041 sbp_agent_reset_callback(struct fw_xfer *xfer)
1042 {
1043         struct sbp_dev *sdev;
1044
1045         sdev = (struct sbp_dev *)xfer->sc;
1046 SBP_DEBUG(1)
1047         sbp_show_sdev_info(sdev, 2);
1048         kprintf("%s\n", __func__);
1049 END_DEBUG
1050         if (xfer->resp != 0) {
1051                 sbp_show_sdev_info(sdev, 2);
1052                 kprintf("%s: resp=%d\n", __func__, xfer->resp);
1053         }
1054
1055         sbp_xfer_free(xfer);
1056         if (sdev->path) {
1057                 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1058                 sdev->freeze = 0;
1059         }
1060 }
1061
1062 static void
1063 sbp_agent_reset(struct sbp_dev *sdev)
1064 {
1065         struct fw_xfer *xfer;
1066         struct fw_pkt *fp;
1067
1068 SBP_DEBUG(0)
1069         sbp_show_sdev_info(sdev, 2);
1070         kprintf("sbp_agent_reset\n");
1071 END_DEBUG
1072         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1073         if (xfer == NULL)
1074                 return;
1075         if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1076                 xfer->act.hand = sbp_agent_reset_callback;
1077         else
1078                 xfer->act.hand = sbp_do_attach;
1079         fp = &xfer->send.hdr;
1080         fp->mode.wreqq.data = htonl(0xf);
1081         fw_asyreq(xfer->fc, -1, xfer);
1082         sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1083 }
1084
1085 static void
1086 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1087 {
1088         struct sbp_dev *sdev;
1089
1090         sdev = (struct sbp_dev *)xfer->sc;
1091 SBP_DEBUG(1)
1092         sbp_show_sdev_info(sdev, 2);
1093         kprintf("sbp_busy_timeout_callback\n");
1094 END_DEBUG
1095         sbp_xfer_free(xfer);
1096         sbp_agent_reset(sdev);
1097 }
1098
1099 static void
1100 sbp_busy_timeout(struct sbp_dev *sdev)
1101 {
1102         struct fw_pkt *fp;
1103         struct fw_xfer *xfer;
1104 SBP_DEBUG(0)
1105         sbp_show_sdev_info(sdev, 2);
1106         kprintf("sbp_busy_timeout\n");
1107 END_DEBUG
1108         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1109
1110         xfer->act.hand = sbp_busy_timeout_callback;
1111         fp = &xfer->send.hdr;
1112         fp->mode.wreqq.dest_hi = 0xffff;
1113         fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1114         fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1115         fw_asyreq(xfer->fc, -1, xfer);
1116 }
1117
1118 static void
1119 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1120 {
1121         struct sbp_dev *sdev;
1122         sdev = (struct sbp_dev *)xfer->sc;
1123
1124 SBP_DEBUG(1)
1125         sbp_show_sdev_info(sdev, 2);
1126         kprintf("%s\n", __func__);
1127 END_DEBUG
1128         if (xfer->resp != 0) {
1129                 /* XXX */
1130                 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1131         }
1132         sbp_xfer_free(xfer);
1133         sdev->flags &= ~ORB_POINTER_ACTIVE;
1134
1135         if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1136                 struct sbp_ocb *ocb;
1137
1138                 sdev->flags &= ~ORB_POINTER_NEED;
1139                 ocb = STAILQ_FIRST(&sdev->ocbs);
1140                 if (ocb != NULL)
1141                         sbp_orb_pointer(sdev, ocb);
1142         }
1143         return;
1144 }
1145
1146 static void
1147 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1148 {
1149         struct fw_xfer *xfer;
1150         struct fw_pkt *fp;
1151 SBP_DEBUG(1)
1152         sbp_show_sdev_info(sdev, 2);
1153         kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1154 END_DEBUG
1155
1156         if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1157 SBP_DEBUG(0)
1158                 kprintf("%s: orb pointer active\n", __func__);
1159 END_DEBUG
1160                 sdev->flags |= ORB_POINTER_NEED;
1161                 return;
1162         }
1163
1164         sdev->flags |= ORB_POINTER_ACTIVE;
1165         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1166         if (xfer == NULL)
1167                 return;
1168         xfer->act.hand = sbp_orb_pointer_callback;
1169
1170         fp = &xfer->send.hdr;
1171         fp->mode.wreqb.len = 8;
1172         fp->mode.wreqb.extcode = 0;
1173         xfer->send.payload[0] =
1174                 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1175         xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1176
1177         if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1178                         sbp_xfer_free(xfer);
1179                         ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1180                         xpt_done(ocb->ccb);
1181         }
1182 }
1183
1184 #if 0
1185 static void
1186 sbp_cmd_callback(struct fw_xfer *xfer)
1187 {
1188 SBP_DEBUG(1)
1189         struct sbp_dev *sdev;
1190         sdev = (struct sbp_dev *)xfer->sc;
1191         sbp_show_sdev_info(sdev, 2);
1192         kprintf("sbp_cmd_callback\n");
1193 END_DEBUG
1194         if (xfer->resp != 0) {
1195                 /* XXX */
1196                 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1197         }
1198         sbp_xfer_free(xfer);
1199         return;
1200 }
1201
1202 static void
1203 sbp_doorbell(struct sbp_dev *sdev)
1204 {
1205         struct fw_xfer *xfer;
1206         struct fw_pkt *fp;
1207 SBP_DEBUG(1)
1208         sbp_show_sdev_info(sdev, 2);
1209         kprintf("sbp_doorbell\n");
1210 END_DEBUG
1211
1212         xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1213         if (xfer == NULL)
1214                 return;
1215         xfer->act.hand = sbp_cmd_callback;
1216         fp = (struct fw_pkt *)xfer->send.buf;
1217         fp->mode.wreqq.data = htonl(0xf);
1218         fw_asyreq(xfer->fc, -1, xfer);
1219 }
1220 #endif
1221
1222 static struct fw_xfer *
1223 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1224 {
1225         struct fw_xfer *xfer;
1226         struct fw_pkt *fp;
1227         struct sbp_target *target;
1228         int new = 0;
1229
1230         target = sdev->target;
1231         crit_enter();
1232         xfer = STAILQ_FIRST(&target->xferlist);
1233         if (xfer == NULL) {
1234                 if (target->n_xfer > 5 /* XXX */) {
1235                         kprintf("sbp: no more xfer for this target\n");
1236                         crit_exit();
1237                         return(NULL);
1238                 }
1239                 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1240                 if(xfer == NULL){
1241                         kprintf("sbp: fw_xfer_alloc_buf failed\n");
1242                         crit_exit();
1243                         return NULL;
1244                 }
1245                 target->n_xfer ++;
1246                 if (debug)
1247                         kprintf("sbp: alloc %d xfer\n", target->n_xfer);
1248                 new = 1;
1249         } else {
1250                 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1251         }
1252         crit_exit();
1253
1254         microtime(&xfer->tv);
1255
1256         if (new) {
1257                 xfer->recv.pay_len = 0;
1258                 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1259                 xfer->fc = sdev->target->sbp->fd.fc;
1260                 xfer->retry_req = fw_asybusy;
1261         }
1262
1263         if (tcode == FWTCODE_WREQB)
1264                 xfer->send.pay_len = 8;
1265         else
1266                 xfer->send.pay_len = 0;
1267
1268         xfer->sc = (caddr_t)sdev;
1269         fp = &xfer->send.hdr;
1270         fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1271         fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1272         fp->mode.wreqq.tlrt = 0;
1273         fp->mode.wreqq.tcode = tcode;
1274         fp->mode.wreqq.pri = 0;
1275         fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1276
1277         return xfer;
1278
1279 }
1280
1281 static void
1282 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1283 {
1284         struct fw_xfer *xfer;
1285         struct fw_pkt *fp;
1286         struct sbp_ocb *ocb;
1287         struct sbp_target *target;
1288         int nid;
1289
1290         target = sdev->target;
1291         nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1292
1293         crit_enter();
1294         if (func == ORB_FUN_RUNQUEUE) {
1295                 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1296                 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1297                         crit_exit();
1298                         return;
1299                 }
1300                 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1301                 goto start;
1302         }
1303         if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1304                 crit_exit();
1305                 /* XXX */
1306                 return;
1307         }
1308         ocb->flags = OCB_ACT_MGM;
1309         ocb->sdev = sdev;
1310
1311         bzero((void *)ocb->orb, sizeof(ocb->orb));
1312         ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1313         ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1314
1315 SBP_DEBUG(0)
1316         sbp_show_sdev_info(sdev, 2);
1317         kprintf("%s\n", orb_fun_name[(func>>16)&0xf]);
1318 END_DEBUG
1319         switch (func) {
1320         case ORB_FUN_LGI:
1321                 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1322                 ocb->orb[2] = htonl(nid << 16);
1323                 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1324                 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1325                 if (ex_login)
1326                         ocb->orb[4] |= htonl(ORB_EXV);
1327                 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1328                 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1329                 break;
1330         case ORB_FUN_ATA:
1331                 ocb->orb[0] = htonl((0 << 16) | 0);
1332                 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1333                 /* fall through */
1334         case ORB_FUN_RCN:
1335         case ORB_FUN_LGO:
1336         case ORB_FUN_LUR:
1337         case ORB_FUN_RST:
1338         case ORB_FUN_ATS:
1339                 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1340                 break;
1341         }
1342
1343         if (target->mgm_ocb_cur != NULL) {
1344                 /* there is a standing ORB */
1345                 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1346                 crit_exit();
1347                 return;
1348         }
1349 start:
1350         target->mgm_ocb_cur = ocb;
1351         crit_exit();
1352
1353         callout_reset(&target->mgm_ocb_timeout, 5*hz,
1354                                 sbp_mgm_timeout, (caddr_t)ocb);
1355         xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1356         if(xfer == NULL){
1357                 return;
1358         }
1359         xfer->act.hand = sbp_mgm_callback;
1360
1361         fp = &xfer->send.hdr;
1362         fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1363         fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1364         fp->mode.wreqb.len = 8;
1365         fp->mode.wreqb.extcode = 0;
1366         xfer->send.payload[0] = htonl(nid << 16);
1367         xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1368 SBP_DEBUG(0)
1369         sbp_show_sdev_info(sdev, 2);
1370         kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1371 END_DEBUG
1372
1373         fw_asyreq(xfer->fc, -1, xfer);
1374 }
1375
1376 static void
1377 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1378 {
1379         struct ccb_scsiio *csio;
1380
1381         csio = &ocb->ccb->csio;
1382         kprintf("%s:%d:%d XPT_SCSI_IO: "
1383                 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1384                 ", flags: 0x%02x, "
1385                 "%db cmd/%db data/%db sense\n",
1386                 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1387                 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1388                 csio->cdb_io.cdb_bytes[0],
1389                 csio->cdb_io.cdb_bytes[1],
1390                 csio->cdb_io.cdb_bytes[2],
1391                 csio->cdb_io.cdb_bytes[3],
1392                 csio->cdb_io.cdb_bytes[4],
1393                 csio->cdb_io.cdb_bytes[5],
1394                 csio->cdb_io.cdb_bytes[6],
1395                 csio->cdb_io.cdb_bytes[7],
1396                 csio->cdb_io.cdb_bytes[8],
1397                 csio->cdb_io.cdb_bytes[9],
1398                 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1399                 csio->cdb_len, csio->dxfer_len,
1400                 csio->sense_len);
1401 }
1402
1403 static void
1404 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1405 {
1406         struct sbp_cmd_status *sbp_cmd_status;
1407         struct scsi_sense_data *sense;
1408
1409         sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1410         sense = &ocb->ccb->csio.sense_data;
1411
1412 SBP_DEBUG(0)
1413         sbp_print_scsi_cmd(ocb);
1414         /* XXX need decode status */
1415         sbp_show_sdev_info(ocb->sdev, 2);
1416         kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1417                 sbp_cmd_status->status,
1418                 sbp_cmd_status->sfmt,
1419                 sbp_cmd_status->valid,
1420                 sbp_cmd_status->s_key,
1421                 sbp_cmd_status->s_code,
1422                 sbp_cmd_status->s_qlfr,
1423                 sbp_status->len
1424         );
1425 END_DEBUG
1426
1427         switch (sbp_cmd_status->status) {
1428         case SCSI_STATUS_CHECK_COND:
1429         case SCSI_STATUS_BUSY:
1430         case SCSI_STATUS_CMD_TERMINATED:
1431                 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1432                         sense->error_code = SSD_CURRENT_ERROR;
1433                 }else{
1434                         sense->error_code = SSD_DEFERRED_ERROR;
1435                 }
1436                 if(sbp_cmd_status->valid)
1437                         sense->error_code |= SSD_ERRCODE_VALID;
1438                 sense->flags = sbp_cmd_status->s_key;
1439                 if(sbp_cmd_status->mark)
1440                         sense->flags |= SSD_FILEMARK;
1441                 if(sbp_cmd_status->eom)
1442                         sense->flags |= SSD_EOM;
1443                 if(sbp_cmd_status->ill_len)
1444                         sense->flags |= SSD_ILI;
1445
1446                 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1447
1448                 if (sbp_status->len <= 1)
1449                         /* XXX not scsi status. shouldn't be happened */
1450                         sense->extra_len = 0;
1451                 else if (sbp_status->len <= 4)
1452                         /* add_sense_code(_qual), info, cmd_spec_info */
1453                         sense->extra_len = 6;
1454                 else
1455                         /* fru, sense_key_spec */
1456                         sense->extra_len = 10;
1457
1458                 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1459
1460                 sense->add_sense_code = sbp_cmd_status->s_code;
1461                 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1462                 sense->fru = sbp_cmd_status->fru;
1463
1464                 bcopy(&sbp_cmd_status->s_keydep[0],
1465                     &sense->sense_key_spec[0], 3);
1466
1467                 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1468                 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1469                                                         | CAM_AUTOSNS_VALID;
1470 /*
1471 {
1472                 u_int8_t j, *tmp;
1473                 tmp = sense;
1474                 for( j = 0 ; j < 32 ; j+=8){
1475                         kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1476                                 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1477                                 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1478                 }
1479
1480 }
1481 */
1482                 break;
1483         default:
1484                 sbp_show_sdev_info(ocb->sdev, 2);
1485                 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n",
1486                                                 sbp_cmd_status->status);
1487         }
1488 }
1489
1490 static void
1491 sbp_fix_inq_data(struct sbp_ocb *ocb)
1492 {
1493         union ccb *ccb;
1494         struct sbp_dev *sdev;
1495         struct scsi_inquiry_data *inq;
1496
1497         ccb = ocb->ccb;
1498         sdev = ocb->sdev;
1499
1500         if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1501                 return;
1502 SBP_DEBUG(1)
1503         sbp_show_sdev_info(sdev, 2);
1504         kprintf("sbp_fix_inq_data\n");
1505 END_DEBUG
1506         inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1507         switch (SID_TYPE(inq)) {
1508         case T_DIRECT:
1509 #if 0
1510                 /*
1511                  * XXX Convert Direct Access device to RBC.
1512                  * I've never seen FireWire DA devices which support READ_6.
1513                  */
1514                 if (SID_TYPE(inq) == T_DIRECT)
1515                         inq->device |= T_RBC; /*  T_DIRECT == 0 */
1516 #endif
1517                 /* fall through */
1518         case T_RBC:
1519                 /* enable tagged queuing */
1520                 if (sbp_tags)
1521                         inq->flags |= SID_CmdQue;
1522                 else
1523                         inq->flags &= ~SID_CmdQue;
1524                 /*
1525                  * Override vendor/product/revision information.
1526                  * Some devices sometimes return strange strings.
1527                  */
1528 #if 1
1529                 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1530                 bcopy(sdev->product, inq->product, sizeof(inq->product));
1531                 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1532 #endif
1533                 break;
1534         }
1535 }
1536
1537 static void
1538 sbp_recv1(struct fw_xfer *xfer)
1539 {
1540         struct fw_pkt *rfp;
1541 #if NEED_RESPONSE
1542         struct fw_pkt *sfp;
1543 #endif
1544         struct sbp_softc *sbp;
1545         struct sbp_dev *sdev;
1546         struct sbp_ocb *ocb;
1547         struct sbp_login_res *login_res = NULL;
1548         struct sbp_status *sbp_status;
1549         struct sbp_target *target;
1550         int     orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1551         u_int32_t addr;
1552 /*
1553         u_int32_t *ld;
1554         ld = xfer->recv.buf;
1555 kprintf("sbp %x %d %d %08x %08x %08x %08x\n",
1556                         xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1557 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1558 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1559 */
1560         sbp = (struct sbp_softc *)xfer->sc;
1561         if (xfer->resp != 0){
1562                 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1563                 goto done0;
1564         }
1565         if (xfer->recv.payload == NULL){
1566                 kprintf("sbp_recv: xfer->recv.payload == NULL\n");
1567                 goto done0;
1568         }
1569         rfp = &xfer->recv.hdr;
1570         if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1571                 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1572                 goto done0;
1573         }
1574         sbp_status = (struct sbp_status *)xfer->recv.payload;
1575         addr = rfp->mode.wreqb.dest_lo;
1576 SBP_DEBUG(2)
1577         kprintf("received address 0x%x\n", addr);
1578 END_DEBUG
1579         t = SBP_ADDR2TRG(addr);
1580         if (t >= SBP_NUM_TARGETS) {
1581                 device_printf(sbp->fd.dev,
1582                         "sbp_recv1: invalid target %d\n", t);
1583                 goto done0;
1584         }
1585         target = &sbp->targets[t];
1586         l = SBP_ADDR2LUN(addr);
1587         if (l >= target->num_lun || target->luns[l] == NULL) {
1588                 device_printf(sbp->fd.dev,
1589                         "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1590                 goto done0;
1591         }
1592         sdev = target->luns[l];
1593
1594         ocb = NULL;
1595         switch (sbp_status->src) {
1596         case 0:
1597         case 1:
1598                 /* check mgm_ocb_cur first */
1599                 ocb  = target->mgm_ocb_cur;
1600                 if (ocb != NULL) {
1601                         if (OCB_MATCH(ocb, sbp_status)) {
1602                                 callout_stop(&target->mgm_ocb_timeout);
1603                                 target->mgm_ocb_cur = NULL;
1604                                 break;
1605                         }
1606                 }
1607                 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1608                 if (ocb == NULL) {
1609                         sbp_show_sdev_info(sdev, 2);
1610                         kprintf("No ocb(%x) on the queue\n",
1611                                         ntohl(sbp_status->orb_lo));
1612                 }
1613                 break;
1614         case 2:
1615                 /* unsolicit */
1616                 sbp_show_sdev_info(sdev, 2);
1617                 kprintf("unsolicit status received\n");
1618                 break;
1619         default:
1620                 sbp_show_sdev_info(sdev, 2);
1621                 kprintf("unknown sbp_status->src\n");
1622         }
1623
1624         status_valid0 = (sbp_status->src < 2
1625                         && sbp_status->resp == ORB_RES_CMPL
1626                         && sbp_status->dead == 0);
1627         status_valid = (status_valid0 && sbp_status->status == 0);
1628
1629         if (!status_valid0 || debug > 2){
1630                 int status;
1631 SBP_DEBUG(0)
1632                 sbp_show_sdev_info(sdev, 2);
1633                 kprintf("ORB status src:%x resp:%x dead:%x"
1634                                 " len:%x stat:%x orb:%x%08x\n",
1635                         sbp_status->src, sbp_status->resp, sbp_status->dead,
1636                         sbp_status->len, sbp_status->status,
1637                         ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1638 END_DEBUG
1639                 sbp_show_sdev_info(sdev, 2);
1640                 status = sbp_status->status;
1641                 switch(sbp_status->resp) {
1642                 case 0:
1643                         if (status > MAX_ORB_STATUS0)
1644                                 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1645                         else
1646                                 kprintf("%s\n", orb_status0[status]);
1647                         break;
1648                 case 1:
1649                         kprintf("Obj: %s, Error: %s\n",
1650                                 orb_status1_object[(status>>6) & 3],
1651                                 orb_status1_serial_bus_error[status & 0xf]);
1652                         break;
1653                 case 2:
1654                         kprintf("Illegal request\n");
1655                         break;
1656                 case 3:
1657                         kprintf("Vendor dependent\n");
1658                         break;
1659                 default:
1660                         kprintf("unknown respose code %d\n", sbp_status->resp);
1661                 }
1662         }
1663
1664         /* we have to reset the fetch agent if it's dead */
1665         if (sbp_status->dead) {
1666                 if (sdev->path) {
1667                         xpt_freeze_devq(sdev->path, 1);
1668                         sdev->freeze ++;
1669                 }
1670                 reset_agent = 1;
1671         }
1672
1673         if (ocb == NULL)
1674                 goto done;
1675
1676         switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1677         case ORB_FMT_NOP:
1678                 break;
1679         case ORB_FMT_VED:
1680                 break;
1681         case ORB_FMT_STD:
1682                 switch(ocb->flags) {
1683                 case OCB_ACT_MGM:
1684                         orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1685                         reset_agent = 0;
1686                         switch(orb_fun) {
1687                         case ORB_FUN_LGI:
1688                                 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1689                                 login_res = sdev->login;
1690                                 login_res->len = ntohs(login_res->len);
1691                                 login_res->id = ntohs(login_res->id);
1692                                 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1693                                 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1694                                 if (status_valid) {
1695 SBP_DEBUG(0)
1696 sbp_show_sdev_info(sdev, 2);
1697 kprintf("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));
1698 END_DEBUG
1699                                         sbp_busy_timeout(sdev);
1700                                 } else {
1701                                         /* forgot logout? */
1702                                         sbp_show_sdev_info(sdev, 2);
1703                                         kprintf("login failed\n");
1704                                         sdev->status = SBP_DEV_RESET;
1705                                 }
1706                                 break;
1707                         case ORB_FUN_RCN:
1708                                 login_res = sdev->login;
1709                                 if (status_valid) {
1710 SBP_DEBUG(0)
1711 sbp_show_sdev_info(sdev, 2);
1712 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1713 END_DEBUG
1714 #if 1
1715                                         if (sdev->status == SBP_DEV_ATTACHED)
1716                                                 sbp_scan_dev(sdev);
1717                                         else
1718                                                 sbp_agent_reset(sdev);
1719 #else
1720                                         sdev->status = SBP_DEV_ATTACHED;
1721                                         sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1722 #endif
1723                                 } else {
1724                                         /* reconnection hold time exceed? */
1725 SBP_DEBUG(0)
1726                                         sbp_show_sdev_info(sdev, 2);
1727                                         kprintf("reconnect failed\n");
1728 END_DEBUG
1729                                         sbp_login(sdev);
1730                                 }
1731                                 break;
1732                         case ORB_FUN_LGO:
1733                                 sdev->status = SBP_DEV_RESET;
1734                                 break;
1735                         case ORB_FUN_RST:
1736                                 sbp_busy_timeout(sdev);
1737                                 break;
1738                         case ORB_FUN_LUR:
1739                         case ORB_FUN_ATA:
1740                         case ORB_FUN_ATS:
1741                                 sbp_agent_reset(sdev);
1742                                 break;
1743                         default:
1744                                 sbp_show_sdev_info(sdev, 2);
1745                                 kprintf("unknown function %d\n", orb_fun);
1746                                 break;
1747                         }
1748                         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1749                         break;
1750                 case OCB_ACT_CMD:
1751                         sdev->timeout = 0;
1752                         if(ocb->ccb != NULL){
1753                                 union ccb *ccb;
1754 /*
1755                                 u_int32_t *ld;
1756                                 ld = ocb->ccb->csio.data_ptr;
1757                                 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1758                                         kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1759                                 else
1760                                         kprintf("ptr NULL\n");
1761 kprintf("len %d\n", sbp_status->len);
1762 */
1763                                 ccb = ocb->ccb;
1764                                 if(sbp_status->len > 1){
1765                                         sbp_scsi_status(sbp_status, ocb);
1766                                 }else{
1767                                         if(sbp_status->resp != ORB_RES_CMPL){
1768                                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1769                                         }else{
1770                                                 ccb->ccb_h.status = CAM_REQ_CMP;
1771                                         }
1772                                 }
1773                                 /* fix up inq data */
1774                                 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1775                                         sbp_fix_inq_data(ocb);
1776                                 xpt_done(ccb);
1777                         }
1778                         break;
1779                 default:
1780                         break;
1781                 }
1782         }
1783
1784         sbp_free_ocb(sdev, ocb);
1785 done:
1786         if (reset_agent)
1787                 sbp_agent_reset(sdev);
1788
1789 done0:
1790         xfer->recv.pay_len = SBP_RECV_LEN;
1791 /* The received packet is usually small enough to be stored within
1792  * the buffer. In that case, the controller return ack_complete and
1793  * no respose is necessary.
1794  *
1795  * XXX fwohci.c and firewire.c should inform event_code such as
1796  * ack_complete or ack_pending to upper driver.
1797  */
1798 #if NEED_RESPONSE
1799         xfer->send.off = 0;
1800         sfp = (struct fw_pkt *)xfer->send.buf;
1801         sfp->mode.wres.dst = rfp->mode.wreqb.src;
1802         xfer->dst = sfp->mode.wres.dst;
1803         xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1804         xfer->act.hand = sbp_loginres_callback;
1805         xfer->retry_req = fw_asybusy;
1806
1807         sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1808         sfp->mode.wres.tcode = FWTCODE_WRES;
1809         sfp->mode.wres.rtcode = 0;
1810         sfp->mode.wres.pri = 0;
1811
1812         fw_asyreq(xfer->fc, -1, xfer);
1813 #else
1814         /* recycle */
1815         STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1816 #endif
1817
1818         return;
1819
1820 }
1821
1822 static void
1823 sbp_recv(struct fw_xfer *xfer)
1824 {
1825         crit_enter();
1826         sbp_recv1(xfer);
1827         crit_exit();
1828 }
1829 /*
1830  * sbp_attach()
1831  */
1832 static int
1833 sbp_attach(device_t dev)
1834 {
1835         struct sbp_softc *sbp;
1836         struct cam_devq *devq;
1837         struct fw_xfer *xfer;
1838         int i, error;
1839
1840 SBP_DEBUG(0)
1841         kprintf("sbp_attach (cold=%d)\n", cold);
1842 END_DEBUG
1843
1844 #if 0
1845         if (cold)
1846                 sbp_cold ++;
1847 #endif
1848         sbp = ((struct sbp_softc *)device_get_softc(dev));
1849         bzero(sbp, sizeof(struct sbp_softc));
1850         sbp->fd.dev = dev;
1851         sbp->fd.fc = device_get_ivars(dev);
1852
1853         if (max_speed < 0)
1854                 max_speed = sbp->fd.fc->speed;
1855
1856         error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1857                                 /* XXX shoud be 4 for sane backend? */
1858                                 /*alignment*/1,
1859                                 /*boundary*/0,
1860                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1861                                 /*highaddr*/BUS_SPACE_MAXADDR,
1862                                 /*filter*/NULL, /*filterarg*/NULL,
1863                                 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1864                                 /*maxsegsz*/SBP_SEG_MAX,
1865                                 /*flags*/BUS_DMA_ALLOCNOW,
1866 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1867                                 /*lockfunc*/busdma_lock_mutex,
1868                                 /*lockarg*/&Giant,
1869 #endif
1870                                 &sbp->dmat);
1871         if (error != 0) {
1872                 kprintf("sbp_attach: Could not allocate DMA tag "
1873                         "- error %d\n", error);
1874                         return (ENOMEM);
1875         }
1876
1877         devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1878         if (devq == NULL)
1879                 return (ENXIO);
1880
1881         for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1882                 sbp->targets[i].fwdev = NULL;
1883                 sbp->targets[i].luns = NULL;
1884         }
1885
1886         sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1887                                  device_get_unit(dev),
1888                                  /*untagged*/ 1,
1889                                  /*tagged*/ SBP_QUEUE_LEN - 1,
1890                                  devq);
1891         cam_simq_release(devq);
1892         if (sbp->sim == NULL)
1893                 return (ENXIO);
1894
1895         if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1896                 goto fail;
1897
1898         if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1899             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1900                 xpt_bus_deregister(cam_sim_path(sbp->sim));
1901                 goto fail;
1902         }
1903
1904         /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1905         sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1906         sbp->fwb.end = sbp->fwb.start + 0xffff;
1907         sbp->fwb.act_type = FWACT_XFER;
1908         /* pre-allocate xfer */
1909         STAILQ_INIT(&sbp->fwb.xferlist);
1910         for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1911                 xfer = fw_xfer_alloc_buf(M_SBP,
1912                         /* send */0,
1913                         /* recv */SBP_RECV_LEN);
1914                 xfer->act.hand = sbp_recv;
1915 #if NEED_RESPONSE
1916                 xfer->fc = sbp->fd.fc;
1917 #endif
1918                 xfer->sc = (caddr_t)sbp;
1919                 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1920         }
1921         fw_bindadd(sbp->fd.fc, &sbp->fwb);
1922
1923         sbp->fd.post_busreset = sbp_post_busreset;
1924         sbp->fd.post_explore = sbp_post_explore;
1925
1926         if (sbp->fd.fc->status != -1) {
1927                 crit_enter();
1928                 sbp_post_busreset((void *)sbp);
1929                 sbp_post_explore((void *)sbp);
1930                 crit_exit();
1931         }
1932         xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1933
1934         return (0);
1935 fail:
1936         cam_sim_free(sbp->sim);
1937         return (ENXIO);
1938 }
1939
1940 static int
1941 sbp_logout_all(struct sbp_softc *sbp)
1942 {
1943         struct sbp_target *target;
1944         struct sbp_dev *sdev;
1945         int i, j;
1946
1947 SBP_DEBUG(0)
1948         kprintf("sbp_logout_all\n");
1949 END_DEBUG
1950         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1951                 target = &sbp->targets[i];
1952                 if (target->luns == NULL)
1953                         continue;
1954                 for (j = 0; j < target->num_lun; j++) {
1955                         sdev = target->luns[j];
1956                         if (sdev == NULL)
1957                                 continue;
1958                         callout_stop(&sdev->login_callout);
1959                         if (sdev->status >= SBP_DEV_TOATTACH &&
1960                                         sdev->status <= SBP_DEV_ATTACHED)
1961                                 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1962                 }
1963         }
1964
1965         return 0;
1966 }
1967
1968 static int
1969 sbp_shutdown(device_t dev)
1970 {
1971         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1972
1973         sbp_logout_all(sbp);
1974         return (0);
1975 }
1976
1977 static void
1978 sbp_free_sdev(struct sbp_dev *sdev)
1979 {
1980         int i;
1981
1982         if (sdev == NULL)
1983                 return;
1984         for (i = 0; i < SBP_QUEUE_LEN; i++)
1985                 bus_dmamap_destroy(sdev->target->sbp->dmat,
1986                     sdev->ocb[i].dmamap);
1987         fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
1988         kfree(sdev, M_SBP);
1989 }
1990
1991 static void
1992 sbp_free_target(struct sbp_target *target)
1993 {
1994         struct sbp_softc *sbp;
1995         struct fw_xfer *xfer, *next;
1996         int i;
1997
1998         if (target->luns == NULL)
1999                 return;
2000         callout_stop(&target->mgm_ocb_timeout);
2001         sbp = target->sbp;
2002         for (i = 0; i < target->num_lun; i++)
2003                 sbp_free_sdev(target->luns[i]);
2004
2005         for (xfer = STAILQ_FIRST(&target->xferlist);
2006                         xfer != NULL; xfer = next) {
2007                 next = STAILQ_NEXT(xfer, link);
2008                 fw_xfer_free_buf(xfer);
2009         }
2010         STAILQ_INIT(&target->xferlist);
2011         kfree(target->luns, M_SBP);
2012         target->num_lun = 0;
2013         target->luns = NULL;
2014         target->fwdev = NULL;
2015 }
2016
2017 static int
2018 sbp_detach(device_t dev)
2019 {
2020         struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2021         struct firewire_comm *fc = sbp->fd.fc;
2022         struct fw_xfer *xfer, *next;
2023         int i;
2024
2025 SBP_DEBUG(0)
2026         kprintf("sbp_detach\n");
2027 END_DEBUG
2028
2029         for (i = 0; i < SBP_NUM_TARGETS; i ++)
2030                 sbp_cam_detach_target(&sbp->targets[i]);
2031         xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2032         xpt_free_path(sbp->path);
2033         xpt_bus_deregister(cam_sim_path(sbp->sim));
2034         cam_sim_free(sbp->sim);
2035
2036         sbp_logout_all(sbp);
2037
2038         /* XXX wait for logout completion */
2039         tsleep(&i, FWPRI, "sbpdtc", hz/2);
2040
2041         for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2042                 sbp_free_target(&sbp->targets[i]);
2043
2044         for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2045                                 xfer != NULL; xfer = next) {
2046                 next = STAILQ_NEXT(xfer, link);
2047                 fw_xfer_free_buf(xfer);
2048         }
2049         STAILQ_INIT(&sbp->fwb.xferlist);
2050         fw_bindremove(fc, &sbp->fwb);
2051
2052         bus_dma_tag_destroy(sbp->dmat);
2053
2054         return (0);
2055 }
2056
2057 static void
2058 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2059 {
2060         if (sdev == NULL)
2061                 return;
2062         if (sdev->status == SBP_DEV_DEAD)
2063                 return;
2064         if (sdev->status == SBP_DEV_RESET)
2065                 return;
2066         if (sdev->path) {
2067                 xpt_release_devq(sdev->path,
2068                                  sdev->freeze, TRUE);
2069                 sdev->freeze = 0;
2070                 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2071                 xpt_free_path(sdev->path);
2072                 sdev->path = NULL;
2073         }
2074         sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2075 }
2076
2077 static void
2078 sbp_cam_detach_target(struct sbp_target *target)
2079 {
2080         int i;
2081
2082         if (target->luns != NULL) {
2083 SBP_DEBUG(0)
2084                 kprintf("sbp_detach_target %d\n", target->target_id);
2085 END_DEBUG
2086                 callout_stop(&target->scan_callout);
2087                 for (i = 0; i < target->num_lun; i++)
2088                         sbp_cam_detach_sdev(target->luns[i]);
2089         }
2090 }
2091
2092 static void
2093 sbp_target_reset(struct sbp_dev *sdev, int method)
2094 {
2095         int i;
2096         struct sbp_target *target = sdev->target;
2097         struct sbp_dev *tsdev;
2098
2099         for (i = 0; i < target->num_lun; i++) {
2100                 tsdev = target->luns[i];
2101                 if (tsdev == NULL)
2102                         continue;
2103                 if (tsdev->status == SBP_DEV_DEAD)
2104                         continue;
2105                 if (tsdev->status == SBP_DEV_RESET)
2106                         continue;
2107                 xpt_freeze_devq(tsdev->path, 1);
2108                 tsdev->freeze ++;
2109                 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2110                 if (method == 2)
2111                         tsdev->status = SBP_DEV_LOGIN;
2112         }
2113         switch(method) {
2114         case 1:
2115                 kprintf("target reset\n");
2116                 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2117                 break;
2118         case 2:
2119                 kprintf("reset start\n");
2120                 sbp_reset_start(sdev);
2121                 break;
2122         }
2123
2124 }
2125
2126 static void
2127 sbp_mgm_timeout(void *arg)
2128 {
2129         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2130         struct sbp_dev *sdev = ocb->sdev;
2131         struct sbp_target *target = sdev->target;
2132
2133         sbp_show_sdev_info(sdev, 2);
2134         kprintf("request timeout(mgm orb:0x%08x) ... ",
2135             (u_int32_t)ocb->bus_addr);
2136         target->mgm_ocb_cur = NULL;
2137         sbp_free_ocb(sdev, ocb);
2138 #if 0
2139         /* XXX */
2140         kprintf("run next request\n");
2141         sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2142 #endif
2143 #if 1
2144         kprintf("reset start\n");
2145         sbp_reset_start(sdev);
2146 #endif
2147 }
2148
2149 static void
2150 sbp_timeout(void *arg)
2151 {
2152         struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2153         struct sbp_dev *sdev = ocb->sdev;
2154
2155         sbp_show_sdev_info(sdev, 2);
2156         kprintf("request timeout(cmd orb:0x%08x) ... ",
2157             (u_int32_t)ocb->bus_addr);
2158
2159         sdev->timeout ++;
2160         switch(sdev->timeout) {
2161         case 1:
2162                 kprintf("agent reset\n");
2163                 xpt_freeze_devq(sdev->path, 1);
2164                 sdev->freeze ++;
2165                 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2166                 sbp_agent_reset(sdev);
2167                 break;
2168         case 2:
2169         case 3:
2170                 sbp_target_reset(sdev, sdev->timeout - 1);
2171                 break;
2172 #if 0
2173         default:
2174                 /* XXX give up */
2175                 sbp_cam_detach_target(target);
2176                 if (target->luns != NULL)
2177                         kfree(target->luns, M_SBP);
2178                 target->num_lun = 0;
2179                 target->luns = NULL;
2180                 target->fwdev = NULL;
2181 #endif
2182         }
2183 }
2184
2185 static void
2186 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2187 {
2188
2189         struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2190         struct sbp_target *target = NULL;
2191         struct sbp_dev *sdev = NULL;
2192
2193         /* target:lun -> sdev mapping */
2194         if (sbp != NULL
2195                         && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2196                         && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2197                 target = &sbp->targets[ccb->ccb_h.target_id];
2198                 if (target->fwdev != NULL
2199                                 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2200                                 && ccb->ccb_h.target_lun < target->num_lun) {
2201                         sdev = target->luns[ccb->ccb_h.target_lun];
2202                         if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2203                                 sdev->status != SBP_DEV_PROBE)
2204                                 sdev = NULL;
2205                 }
2206         }
2207
2208 SBP_DEBUG(1)
2209         if (sdev == NULL)
2210                 kprintf("invalid target %d lun %d\n",
2211                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2212 END_DEBUG
2213
2214         switch (ccb->ccb_h.func_code) {
2215         case XPT_SCSI_IO:
2216         case XPT_RESET_DEV:
2217         case XPT_GET_TRAN_SETTINGS:
2218         case XPT_SET_TRAN_SETTINGS:
2219         case XPT_CALC_GEOMETRY:
2220                 if (sdev == NULL) {
2221 SBP_DEBUG(1)
2222                         kprintf("%s:%d:%d:func_code 0x%04x: "
2223                                 "Invalid target (target needed)\n",
2224                                 device_get_nameunit(sbp->fd.dev),
2225                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2226                                 ccb->ccb_h.func_code);
2227 END_DEBUG
2228
2229                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2230                         xpt_done(ccb);
2231                         return;
2232                 }
2233                 break;
2234         case XPT_PATH_INQ:
2235         case XPT_NOOP:
2236                 /* The opcodes sometimes aimed at a target (sc is valid),
2237                  * sometimes aimed at the SIM (sc is invalid and target is
2238                  * CAM_TARGET_WILDCARD)
2239                  */
2240                 if (sbp == NULL &&
2241                         ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2242 SBP_DEBUG(0)
2243                         kprintf("%s:%d:%d func_code 0x%04x: "
2244                                 "Invalid target (no wildcard)\n",
2245                                 device_get_nameunit(sbp->fd.dev),
2246                                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2247                                 ccb->ccb_h.func_code);
2248 END_DEBUG
2249                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2250                         xpt_done(ccb);
2251                         return;
2252                 }
2253                 break;
2254         default:
2255                 /* XXX Hm, we should check the input parameters */
2256                 break;
2257         }
2258
2259         switch (ccb->ccb_h.func_code) {
2260         case XPT_SCSI_IO:
2261         {
2262                 struct ccb_scsiio *csio;
2263                 struct sbp_ocb *ocb;
2264                 int speed;
2265                 void *cdb;
2266
2267                 csio = &ccb->csio;
2268
2269 SBP_DEBUG(2)
2270                 kprintf("%s:%d:%d XPT_SCSI_IO: "
2271                         "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2272                         ", flags: 0x%02x, "
2273                         "%db cmd/%db data/%db sense\n",
2274                         device_get_nameunit(sbp->fd.dev),
2275                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2276                         csio->cdb_io.cdb_bytes[0],
2277                         csio->cdb_io.cdb_bytes[1],
2278                         csio->cdb_io.cdb_bytes[2],
2279                         csio->cdb_io.cdb_bytes[3],
2280                         csio->cdb_io.cdb_bytes[4],
2281                         csio->cdb_io.cdb_bytes[5],
2282                         csio->cdb_io.cdb_bytes[6],
2283                         csio->cdb_io.cdb_bytes[7],
2284                         csio->cdb_io.cdb_bytes[8],
2285                         csio->cdb_io.cdb_bytes[9],
2286                         ccb->ccb_h.flags & CAM_DIR_MASK,
2287                         csio->cdb_len, csio->dxfer_len,
2288                         csio->sense_len);
2289 END_DEBUG
2290                 if(sdev == NULL){
2291                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2292                         xpt_done(ccb);
2293                         return;
2294                 }
2295 #if 0
2296                 /* if we are in probe stage, pass only probe commands */
2297                 if (sdev->status == SBP_DEV_PROBE) {
2298                         char *name;
2299                         name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2300                         kprintf("probe stage, periph name: %s\n", name);
2301                         if (strcmp(name, "probe") != 0) {
2302                                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2303                                 xpt_done(ccb);
2304                                 return;
2305                         }
2306                 }
2307 #endif
2308                 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2309                         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2310                         xpt_done(ccb);
2311                         return;
2312                 }
2313
2314                 ocb->flags = OCB_ACT_CMD;
2315                 ocb->sdev = sdev;
2316                 ocb->ccb = ccb;
2317                 ccb->ccb_h.ccb_sdev_ptr = sdev;
2318                 ocb->orb[0] = htonl(1 << 31);
2319                 ocb->orb[1] = 0;
2320                 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2321                 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2322                 speed = min(target->fwdev->speed, max_speed);
2323                 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2324                                                 | ORB_CMD_MAXP(speed + 7));
2325                 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2326                         ocb->orb[4] |= htonl(ORB_CMD_IN);
2327                 }
2328
2329                 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2330                         kprintf("sbp: CAM_SCATTER_VALID\n");
2331                 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2332                         kprintf("sbp: CAM_DATA_PHYS\n");
2333
2334                 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2335                         cdb = (void *)csio->cdb_io.cdb_ptr;
2336                 else
2337                         cdb = (void *)&csio->cdb_io.cdb_bytes;
2338                 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2339 /*
2340 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2341 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2342 */
2343                 if (ccb->csio.dxfer_len > 0) {
2344                         int error;
2345
2346                         crit_enter();
2347                         error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2348                                         /*dma map*/ocb->dmamap,
2349                                         ccb->csio.data_ptr,
2350                                         ccb->csio.dxfer_len,
2351                                         sbp_execute_ocb,
2352                                         ocb,
2353                                         /*flags*/0);
2354                         crit_exit();
2355                         if (error)
2356                                 kprintf("sbp: bus_dmamap_load error %d\n", error);
2357                 } else
2358                         sbp_execute_ocb(ocb, NULL, 0, 0);
2359                 break;
2360         }
2361         case XPT_CALC_GEOMETRY:
2362         {
2363                 struct ccb_calc_geometry *ccg;
2364 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2365                 u_int32_t size_mb;
2366                 u_int32_t secs_per_cylinder;
2367                 int extended = 1;
2368 #endif
2369
2370                 ccg = &ccb->ccg;
2371                 if (ccg->block_size == 0) {
2372                         kprintf("sbp_action1: block_size is 0.\n");
2373                         ccb->ccb_h.status = CAM_REQ_INVALID;
2374                         xpt_done(ccb);
2375                         break;
2376                 }
2377 SBP_DEBUG(1)
2378                 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: Volume size = %ju\n",
2379                         device_get_nameunit(sbp->fd.dev),
2380                         cam_sim_path(sbp->sim),
2381                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2382                         (uintmax_t)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                 kprintf("%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                 kprintf("%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                 cpi->transport = XPORT_SPI;     /* XX should have a FireWire */
2441                 cpi->transport_version = 2;
2442                 cpi->protocol = PROTO_SCSI;
2443                 cpi->protocol_version = SCSI_REV_2;
2444
2445                 cpi->ccb_h.status = CAM_REQ_CMP;
2446                 xpt_done(ccb);
2447                 break;
2448         }
2449         case XPT_GET_TRAN_SETTINGS:
2450         {
2451                 struct ccb_trans_settings *cts = &ccb->cts;
2452                 struct ccb_trans_settings_scsi *scsi =
2453                     &cts->proto_specific.scsi;
2454                 struct ccb_trans_settings_spi *spi =
2455                     &cts->xport_specific.spi;
2456
2457                 cts->protocol = PROTO_SCSI;
2458                 cts->protocol_version = SCSI_REV_2;
2459                 cts->transport = XPORT_SPI;     /* should have a FireWire */
2460                 cts->transport_version = 2;
2461                 spi->valid = CTS_SPI_VALID_DISC;
2462                 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2463                 scsi->valid = CTS_SCSI_VALID_TQ;
2464                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2465 SBP_DEBUG(1)
2466                 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2467                         device_get_nameunit(sbp->fd.dev),
2468                         ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2469 END_DEBUG
2470                 cts->ccb_h.status = CAM_REQ_CMP;
2471                 xpt_done(ccb);
2472                 break;
2473         }
2474         case XPT_ABORT:
2475                 ccb->ccb_h.status = CAM_UA_ABORT;
2476                 xpt_done(ccb);
2477                 break;
2478         case XPT_SET_TRAN_SETTINGS:
2479                 /* XXX */
2480         default:
2481                 ccb->ccb_h.status = CAM_REQ_INVALID;
2482                 xpt_done(ccb);
2483                 break;
2484         }
2485         return;
2486 }
2487
2488 static void
2489 sbp_action(struct cam_sim *sim, union ccb *ccb)
2490 {
2491         crit_enter();
2492         sbp_action1(sim, ccb);
2493         crit_exit();
2494 }
2495
2496 static void
2497 sbp_execute_ocb(void *arg,  bus_dma_segment_t *segments, int seg, int error)
2498 {
2499         int i;
2500         struct sbp_ocb *ocb;
2501         struct sbp_ocb *prev;
2502         bus_dma_segment_t *s;
2503
2504         if (error)
2505                 kprintf("sbp_execute_ocb: error=%d\n", error);
2506
2507         ocb = (struct sbp_ocb *)arg;
2508
2509 SBP_DEBUG(2)
2510         kprintf("sbp_execute_ocb: seg %d", seg);
2511         for (i = 0; i < seg; i++)
2512 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2513                 kprintf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2514 #else
2515                 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2516                                         (uintmax_t)segments[i].ds_len);
2517 #endif
2518         kprintf("\n");
2519 END_DEBUG
2520
2521         if (seg == 1) {
2522                 /* direct pointer */
2523                 s = &segments[0];
2524                 if (s->ds_len > SBP_SEG_MAX)
2525                         panic("ds_len > SBP_SEG_MAX, fix busdma code");
2526                 ocb->orb[3] = htonl(s->ds_addr);
2527                 ocb->orb[4] |= htonl(s->ds_len);
2528         } else if(seg > 1) {
2529                 /* page table */
2530                 for (i = 0; i < seg; i++) {
2531                         s = &segments[i];
2532 SBP_DEBUG(0)
2533                         /* XXX LSI Logic "< 16 byte" bug might be hit */
2534                         if (s->ds_len < 16)
2535                                 kprintf("sbp_execute_ocb: warning, "
2536 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2537                                         "segment length(%d) is less than 16."
2538 #else
2539                                         "segment length(%zd) is less than 16."
2540 #endif
2541                                         "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2542 END_DEBUG
2543                         if (s->ds_len > SBP_SEG_MAX)
2544                                 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2545                         ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2546                         ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2547                 }
2548                 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2549         }
2550
2551         if (seg > 0)
2552                 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2553                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2554                         BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2555         prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2556         fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2557         if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2558                 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2559                 sbp_orb_pointer(ocb->sdev, ocb);
2560         }
2561 }
2562
2563 static void
2564 sbp_poll(struct cam_sim *sim)
2565 {
2566         struct sbp_softc *sbp;
2567         struct firewire_comm *fc;
2568
2569         sbp = (struct sbp_softc *)sim->softc;
2570         fc = sbp->fd.fc;
2571
2572         fc->poll(fc, 0, -1);
2573
2574         return;
2575 }
2576
2577 static struct sbp_ocb *
2578 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2579 {
2580         struct sbp_ocb *ocb;
2581         struct sbp_ocb *next;
2582         int order = 0;
2583         int flags;
2584
2585         crit_enter();
2586
2587 SBP_DEBUG(1)
2588         sbp_show_sdev_info(sdev, 2);
2589         kprintf("%s: 0x%08x src %d\n",
2590             __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2591 END_DEBUG
2592         for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2593                 next = STAILQ_NEXT(ocb, ocb);
2594                 flags = ocb->flags;
2595                 if (OCB_MATCH(ocb, sbp_status)) {
2596                         /* found */
2597                         STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2598                         if (ocb->ccb != NULL)
2599                                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2600                         if (ntohl(ocb->orb[4]) & 0xffff) {
2601                                 bus_dmamap_sync(sdev->target->sbp->dmat,
2602                                         ocb->dmamap,
2603                                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2604                                         BUS_DMASYNC_POSTREAD :
2605                                         BUS_DMASYNC_POSTWRITE);
2606                                 bus_dmamap_unload(sdev->target->sbp->dmat,
2607                                         ocb->dmamap);
2608                         }
2609                         if (sbp_status->src == SRC_NO_NEXT) {
2610                                 if (next != NULL)
2611                                         sbp_orb_pointer(sdev, next);
2612                                 else if (order > 0) {
2613                                         /*
2614                                          * Unordered execution
2615                                          * We need to send pointer for
2616                                          * next ORB
2617                                          */
2618                                         sdev->flags |= ORB_LINK_DEAD;
2619                                 }
2620                         }
2621                         break;
2622                 } else
2623                         order ++;
2624         }
2625         crit_exit();
2626 SBP_DEBUG(0)
2627         if (ocb && order > 0) {
2628                 sbp_show_sdev_info(sdev, 2);
2629                 kprintf("unordered execution order:%d\n", order);
2630         }
2631 END_DEBUG
2632         return (ocb);
2633 }
2634
2635 static struct sbp_ocb *
2636 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2637 {
2638         struct sbp_ocb *prev;
2639
2640         crit_enter();
2641
2642 SBP_DEBUG(1)
2643         sbp_show_sdev_info(sdev, 2);
2644 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2645         kprintf("%s: 0x%08x\n", __func__, ocb->bus_addr);
2646 #else
2647         kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2648 #endif
2649 END_DEBUG
2650         prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2651         STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2652
2653         if (ocb->ccb != NULL)
2654                 callout_reset(&ocb->ccb->ccb_h.timeout_ch,
2655                     (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb);
2656
2657         if (prev != NULL) {
2658 SBP_DEBUG(2)
2659 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2660                 kprintf("linking chain 0x%x -> 0x%x\n",
2661                     prev->bus_addr, ocb->bus_addr);
2662 #else
2663                 kprintf("linking chain 0x%jx -> 0x%jx\n",
2664                     (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2665 #endif
2666 END_DEBUG
2667                 prev->orb[1] = htonl(ocb->bus_addr);
2668                 prev->orb[0] = 0;
2669         }
2670         crit_exit();
2671
2672         return prev;
2673 }
2674
2675 static struct sbp_ocb *
2676 sbp_get_ocb(struct sbp_dev *sdev)
2677 {
2678         struct sbp_ocb *ocb;
2679
2680         crit_enter();
2681         ocb = STAILQ_FIRST(&sdev->free_ocbs);
2682         if (ocb == NULL) {
2683                 kprintf("ocb shortage!!!\n");
2684                 return NULL;
2685         }
2686         STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2687         crit_exit();
2688         ocb->ccb = NULL;
2689         return (ocb);
2690 }
2691
2692 static void
2693 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2694 {
2695         ocb->flags = 0;
2696         ocb->ccb = NULL;
2697         STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2698 }
2699
2700 static void
2701 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2702 {
2703         struct sbp_dev *sdev;
2704
2705         sdev = ocb->sdev;
2706 SBP_DEBUG(0)
2707         sbp_show_sdev_info(sdev, 2);
2708 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2709         kprintf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2710 #else
2711         kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2712 #endif
2713 END_DEBUG
2714 SBP_DEBUG(1)
2715         if (ocb->ccb != NULL)
2716                 sbp_print_scsi_cmd(ocb);
2717 END_DEBUG
2718         if (ntohl(ocb->orb[4]) & 0xffff) {
2719                 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2720                         (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2721                         BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2722                 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2723         }
2724         if (ocb->ccb != NULL) {
2725                 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2726                 ocb->ccb->ccb_h.status = status;
2727                 xpt_done(ocb->ccb);
2728         }
2729         sbp_free_ocb(sdev, ocb);
2730 }
2731
2732 static void
2733 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2734 {
2735         struct sbp_ocb *ocb, *next;
2736         STAILQ_HEAD(, sbp_ocb) temp;
2737
2738         crit_enter();
2739         bcopy(&sdev->ocbs, &temp, sizeof(temp));
2740         STAILQ_INIT(&sdev->ocbs);
2741         for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2742                 next = STAILQ_NEXT(ocb, ocb);
2743                 sbp_abort_ocb(ocb, status);
2744         }
2745         crit_exit();
2746 }
2747
2748 static devclass_t sbp_devclass;
2749
2750 /*
2751  * Because sbp is a static device that always exists under any attached
2752  * firewire device, and not scanned by the firewire device, we need an
2753  * identify function to install the device.  For our sanity we want
2754  * the sbp device to have the same unit number as the fireweire device.
2755  */
2756
2757 static device_method_t sbp_methods[] = {
2758         /* device interface */
2759         DEVMETHOD(device_identify,      bus_generic_identify_sameunit),
2760         DEVMETHOD(device_probe,         sbp_probe),
2761         DEVMETHOD(device_attach,        sbp_attach),
2762         DEVMETHOD(device_detach,        sbp_detach),
2763         DEVMETHOD(device_shutdown,      sbp_shutdown),
2764
2765         { 0, 0 }
2766 };
2767
2768 static driver_t sbp_driver = {
2769         "sbp",
2770         sbp_methods,
2771         sizeof(struct sbp_softc),
2772 };
2773
2774 DECLARE_DUMMY_MODULE(sbp);
2775 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2776 MODULE_VERSION(sbp, 1);
2777 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2778 MODULE_DEPEND(sbp, cam, 1, 1, 1);