sys/dev/hptrr/hptrr_osm_bsd.c

   1 /*
   2  * Copyright (c) HighPoint Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <dev/hptrr/hptrr_config.h>
  31 /* $Id: osm_bsd.c,v 1.27 2007/11/22 07:35:49 gmm Exp $
  32  *
  33  * HighPoint RAID Driver for FreeBSD
  34  * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
  35  */
  36 #include <dev/hptrr/os_bsd.h>
  37 #include <dev/hptrr/hptintf.h>
  38
  39 static int attach_generic = 0;
  40 TUNABLE_INT("hw.hptrr.attach_generic", &attach_generic);
  41
  42 static HIM *hpt_match(device_t dev)
  43 {
  44         PCI_ID pci_id;
  45         int i;
  46         HIM *him;
  47
  48         /* Some of supported chips are used not only by HPT. */
  49         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
  50                 return (NULL);
  51         for (him = him_list; him; him = him->next) {
  52                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  53                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  54                                 (pci_get_device(dev) == pci_id.did)){
  55                                 return (him);
  56                         }
  57                 }
  58         }
  59         return (NULL);
  60 }
  61
  62 static int hpt_probe(device_t dev)
  63 {
  64         HIM *him;
  65
  66         him = hpt_match(dev);
  67         if (him != NULL) {
  68                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  69                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  70                             ));
  71                 device_set_desc(dev, him->name);
  72                 return (BUS_PROBE_DEFAULT);
  73         }
  74
  75         return (ENXIO);
  76 }
  77
  78 static int hpt_attach(device_t dev)
  79 {
  80         PHBA hba = (PHBA)device_get_softc(dev);
  81         HIM *him;
  82         PCI_ID pci_id;
  83         HPT_UINT size;
  84         PVBUS vbus;
  85         PVBUS_EXT vbus_ext;
  86
  87         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  88
  89         him = hpt_match(dev);
  90         hba->ext_type = EXT_TYPE_HBA;
  91         hba->ldm_adapter.him = him;
  92
  93         pci_enable_busmaster(dev);
  94
  95         pci_id.vid = pci_get_vendor(dev);
  96         pci_id.did = pci_get_device(dev);
  97         pci_id.rev = pci_get_revid(dev);
  98
  99         size = him->get_adapter_size(&pci_id);
 100         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
 101
 102         hba->pcidev = dev;
 103         hba->pciaddr.tree = 0;
 104         hba->pciaddr.bus = pci_get_bus(dev);
 105         hba->pciaddr.device = pci_get_slot(dev);
 106         hba->pciaddr.function = pci_get_function(dev);
 107
 108         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 109                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 110                 return ENXIO;
 111         }
 112
 113         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 114                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 115
 116         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 117                 size = ldm_get_vbus_size();
 118                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK |
 119                     M_ZERO);
 120                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 121                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 122                 ldm_register_adapter(&hba->ldm_adapter);
 123         }
 124
 125         ldm_for_each_vbus(vbus, vbus_ext) {
 126                 if (hba->ldm_adapter.vbus==vbus) {
 127                         hba->vbus_ext = vbus_ext;
 128                         hba->next = vbus_ext->hba_list;
 129                         vbus_ext->hba_list = hba;
 130                         break;
 131                 }
 132         }
 133         return 0;
 134 }
 135
 136 /*
 137  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 138  * but there are some problems currently (alignment, etc).
 139  */
 140 static __inline void *__get_free_pages(int order)
 141 {
 142         /* don't use low memory - other devices may get starved */
 143         return contigmalloc(PAGE_SIZE<<order,
 144                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 145 }
 146
 147 static __inline void free_pages(void *p, int order)
 148 {
 149         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 150 }
 151
 152 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 153 {
 154         PHBA hba;
 155         struct freelist *f;
 156         HPT_UINT i;
 157         void **p;
 158
 159         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 160                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 161
 162         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 163
 164         for (f=vbus_ext->freelist_head; f; f=f->next) {
 165                 KdPrint(("%s: %d*%d=%d bytes",
 166                         f->tag, f->count, f->size, f->count*f->size));
 167                 for (i=0; i<f->count; i++) {
 168                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
 169                         if (!p) return (ENXIO);
 170                         *p = f->head;
 171                         f->head = p;
 172                 }
 173         }
 174
 175         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 176                 int order, size, j;
 177
 178                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 179
 180                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 181                         ;
 182
 183                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 184                         f->tag, f->count, f->size, f->count*f->size, order));
 185                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 186
 187                 for (i=0; i<f->count;) {
 188                         p = (void **)__get_free_pages(order);
 189                         if (!p) return -1;
 190                         for (j = size/f->size; j && i<f->count; i++,j--) {
 191                                 *p = f->head;
 192                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 193                                 f->head = p;
 194                                 p = (void **)((unsigned long)p + f->size);
 195                         }
 196                 }
 197         }
 198
 199         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 200
 201         for (i=0; i<os_max_cache_pages; i++) {
 202                 p = (void **)__get_free_pages(0);
 203                 if (!p) return -1;
 204                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 205                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 206         }
 207
 208         return 0;
 209 }
 210
 211 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 212 {
 213         struct freelist *f;
 214         void *p;
 215         int i;
 216         BUS_ADDRESS bus;
 217
 218         for (f=vbus_ext->freelist_head; f; f=f->next) {
 219 #if DBG
 220                 if (f->count!=f->reserved_count) {
 221                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 222                 }
 223 #endif
 224                 while ((p=freelist_get(f)))
 225                         free(p, M_DEVBUF);
 226         }
 227
 228         for (i=0; i<os_max_cache_pages; i++) {
 229                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 230                 HPT_ASSERT(p);
 231                 free_pages(p, 0);
 232         }
 233
 234         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 235                 int order, size;
 236 #if DBG
 237                 if (f->count!=f->reserved_count) {
 238                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 239                 }
 240 #endif
 241                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 242
 243                 while ((p=freelist_get_dma(f, &bus))) {
 244                         if (order)
 245                                 free_pages(p, order);
 246                         else {
 247                         /* can't free immediately since other blocks in this page may still be in the list */
 248                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 249                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 250                         }
 251                 }
 252         }
 253
 254         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 255                 free_pages(p, 0);
 256 }
 257
 258 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 259 {
 260         PHBA hba;
 261
 262         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 263                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 264                         KdPrint(("fail to initialize %p", hba));
 265                         return -1;
 266                 }
 267
 268         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 269         return 0;
 270 }
 271
 272 static void hpt_flush_done(PCOMMAND pCmd)
 273 {
 274         PVDEV vd = pCmd->target;
 275
 276         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 277                 vd = vd->u.array.transform->target;
 278                 HPT_ASSERT(vd);
 279                 pCmd->target = vd;
 280                 pCmd->Result = RETURN_PENDING;
 281                 vdev_queue_cmd(pCmd);
 282                 return;
 283         }
 284
 285         *(int *)pCmd->priv = 1;
 286         wakeup(pCmd);
 287 }
 288
 289 /*
 290  * flush a vdev (without retry).
 291  */
 292 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 293 {
 294         PCOMMAND pCmd;
 295         int result = 0, done;
 296         HPT_UINT count;
 297
 298         KdPrint(("flusing dev %p", vd));
 299
 300         hpt_assert_vbus_locked(vbus_ext);
 301
 302         if (mIsArray(vd->type) && vd->u.array.transform)
 303                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 304                                         vd->u.array.transform->target->cmds_per_request);
 305         else
 306                 count = vd->cmds_per_request;
 307
 308         pCmd = ldm_alloc_cmds(vd->vbus, count);
 309
 310         if (!pCmd) {
 311                 return -1;
 312         }
 313
 314         pCmd->type = CMD_TYPE_FLUSH;
 315         pCmd->flags.hard_flush = 1;
 316         pCmd->target = vd;
 317         pCmd->done = hpt_flush_done;
 318         done = 0;
 319         pCmd->priv = &done;
 320
 321         ldm_queue_cmd(pCmd);
 322
 323         if (!done) {
 324                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
 325                         ldm_reset_vbus(vd->vbus);
 326                 }
 327         }
 328
 329         KdPrint(("flush result %d", pCmd->Result));
 330
 331         if (pCmd->Result!=RETURN_SUCCESS)
 332                 result = -1;
 333
 334         ldm_free_cmds(pCmd);
 335
 336         return result;
 337 }
 338
 339 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 340 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 341 {
 342         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 343         PHBA hba;
 344         int i;
 345
 346         KdPrint(("hpt_shutdown_vbus"));
 347
 348         /* stop all ctl tasks and disable the worker taskqueue */
 349         hpt_stop_tasks(vbus_ext);
 350         hpt_lock_vbus(vbus_ext);
 351         vbus_ext->worker.ta_context = 0;
 352
 353         /* flush devices */
 354         for (i=0; i<osm_max_targets; i++) {
 355                 PVDEV vd = ldm_find_target(vbus, i);
 356                 if (vd) {
 357                         /* retry once */
 358                         if (hpt_flush_vdev(vbus_ext, vd))
 359                                 hpt_flush_vdev(vbus_ext, vd);
 360                 }
 361         }
 362
 363         ldm_shutdown(vbus);
 364         hpt_unlock_vbus(vbus_ext);
 365
 366         ldm_release_vbus(vbus);
 367
 368         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 369                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 370
 371         hpt_free_mem(vbus_ext);
 372
 373         while ((hba=vbus_ext->hba_list)) {
 374                 vbus_ext->hba_list = hba->next;
 375                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 376         }
 377
 378         callout_drain(&vbus_ext->timer);
 379         mtx_destroy(&vbus_ext->lock);
 380         free(vbus_ext, M_DEVBUF);
 381         KdPrint(("hpt_shutdown_vbus done"));
 382 }
 383
 384 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 385 {
 386         OSM_TASK *tasks;
 387
 388         tasks = vbus_ext->tasks;
 389         vbus_ext->tasks = 0;
 390
 391         while (tasks) {
 392                 OSM_TASK *t = tasks;
 393                 tasks = t->next;
 394                 t->next = 0;
 395                 t->func(vbus_ext->vbus, t->data);
 396         }
 397 }
 398
 399 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 400 {
 401         if(vbus_ext){
 402                 hpt_lock_vbus(vbus_ext);
 403                 __hpt_do_tasks(vbus_ext);
 404                 hpt_unlock_vbus(vbus_ext);
 405         }
 406 }
 407
 408 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 409 static void hpt_poll(struct cam_sim *sim);
 410 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 411 static void hpt_pci_intr(void *arg);
 412
 413 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 414 {
 415         POS_CMDEXT p = vbus_ext->cmdext_list;
 416         if (p)
 417                 vbus_ext->cmdext_list = p->next;
 418         return p;
 419 }
 420
 421 static __inline void cmdext_put(POS_CMDEXT p)
 422 {
 423         p->next = p->vbus_ext->cmdext_list;
 424         p->vbus_ext->cmdext_list = p;
 425 }
 426
 427 static void hpt_timeout(void *arg)
 428 {
 429         PCOMMAND pCmd = (PCOMMAND)arg;
 430         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 431
 432         KdPrint(("pCmd %p timeout", pCmd));
 433
 434         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 435 }
 436
 437 static void os_cmddone(PCOMMAND pCmd)
 438 {
 439         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 440         union ccb *ccb = ext->ccb;
 441
 442         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 443
 444         callout_stop(&ext->timeout);
 445
 446         switch(pCmd->Result) {
 447         case RETURN_SUCCESS:
 448                 ccb->ccb_h.status = CAM_REQ_CMP;
 449                 break;
 450         case RETURN_BAD_DEVICE:
 451                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 452                 break;
 453         case RETURN_DEVICE_BUSY:
 454                 ccb->ccb_h.status = CAM_BUSY;
 455                 break;
 456         case RETURN_INVALID_REQUEST:
 457                 ccb->ccb_h.status = CAM_REQ_INVALID;
 458                 break;
 459         case RETURN_SELECTION_TIMEOUT:
 460                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 461                 break;
 462         case RETURN_RETRY:
 463                 ccb->ccb_h.status = CAM_BUSY;
 464                 break;
 465         default:
 466                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 467                 break;
 468         }
 469
 470         if (pCmd->flags.data_in) {
 471                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 472         }
 473         else if (pCmd->flags.data_out) {
 474                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 475         }
 476
 477         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 478
 479         cmdext_put(ext);
 480         ldm_free_cmds(pCmd);
 481         xpt_done(ccb);
 482 }
 483
 484 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 485 {
 486         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 487         union ccb *ccb = ext->ccb;
 488
 489         if (logical) {
 490                 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 491                 pSg->size = ccb->csio.dxfer_len;
 492                 pSg->eot = 1;
 493                 return TRUE;
 494         }
 495
 496         /* since we have provided physical sg, nobody will ask us to build physical sg */
 497         HPT_ASSERT(0);
 498         return FALSE;
 499 }
 500
 501 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 502 {
 503         PCOMMAND pCmd = (PCOMMAND)arg;
 504         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 505         PSG psg = pCmd->psg;
 506         int idx;
 507
 508         HPT_ASSERT(pCmd->flags.physical_sg);
 509
 510         if (error)
 511                 panic("busdma error");
 512
 513         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 514
 515         if (nsegs != 0) {
 516                 for (idx = 0; idx < nsegs; idx++, psg++) {
 517                         psg->addr.bus = segs[idx].ds_addr;
 518                         psg->size = segs[idx].ds_len;
 519                         psg->eot = 0;
 520                 }
 521                         psg[-1].eot = 1;
 522
 523                 if (pCmd->flags.data_in) {
 524                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 525                             BUS_DMASYNC_PREREAD);
 526                 }
 527                 else if (pCmd->flags.data_out) {
 528                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 529                             BUS_DMASYNC_PREWRITE);
 530                 }
 531         }
 532         callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 533         ldm_queue_cmd(pCmd);
 534 }
 535
 536 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 537 {
 538         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 539         PVDEV vd;
 540         PCOMMAND pCmd;
 541         POS_CMDEXT ext;
 542         HPT_U8 *cdb;
 543
 544         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 545                 cdb = ccb->csio.cdb_io.cdb_ptr;
 546         else
 547                 cdb = ccb->csio.cdb_io.cdb_bytes;
 548
 549         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 550                 ccb,
 551                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 552                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 553         ));
 554
 555         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 556         if (ccb->ccb_h.target_lun != 0 ||
 557                 ccb->ccb_h.target_id >= osm_max_targets ||
 558                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 559         {
 560                 ccb->ccb_h.status = CAM_TID_INVALID;
 561                 xpt_done(ccb);
 562                 return;
 563         }
 564
 565         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 566
 567         if (!vd) {
 568                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 569                 xpt_done(ccb);
 570                 return;
 571         }
 572
 573         switch (cdb[0]) {
 574         case TEST_UNIT_READY:
 575         case START_STOP_UNIT:
 576         case SYNCHRONIZE_CACHE:
 577                 ccb->ccb_h.status = CAM_REQ_CMP;
 578                 break;
 579
 580         case INQUIRY:
 581                 {
 582                         PINQUIRYDATA inquiryData;
 583                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 584                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 585
 586                         inquiryData->AdditionalLength = 31;
 587                         inquiryData->CommandQueue = 1;
 588                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 589                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 590
 591                         if (vd->target_id / 10) {
 592                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 593                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 594                         }
 595                         else
 596                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 597
 598                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 599
 600                         ccb->ccb_h.status = CAM_REQ_CMP;
 601                 }
 602                 break;
 603
 604         case READ_CAPACITY:
 605         {
 606                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 607                 HPT_U32 cap;
 608
 609                 if (vd->capacity>0xfffffffful)
 610                         cap = 0xfffffffful;
 611                 else
 612                         cap = vd->capacity - 1;
 613
 614                 rbuf[0] = (HPT_U8)(cap>>24);
 615                 rbuf[1] = (HPT_U8)(cap>>16);
 616                 rbuf[2] = (HPT_U8)(cap>>8);
 617                 rbuf[3] = (HPT_U8)cap;
 618                 rbuf[4] = 0;
 619                 rbuf[5] = 0;
 620                 rbuf[6] = 2;
 621                 rbuf[7] = 0;
 622
 623                 ccb->ccb_h.status = CAM_REQ_CMP;
 624                 break;
 625         }
 626
 627         case SERVICE_ACTION_IN:
 628         {
 629                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 630                 HPT_U64 cap = vd->capacity - 1;
 631
 632                 rbuf[0] = (HPT_U8)(cap>>56);
 633                 rbuf[1] = (HPT_U8)(cap>>48);
 634                 rbuf[2] = (HPT_U8)(cap>>40);
 635                 rbuf[3] = (HPT_U8)(cap>>32);
 636                 rbuf[4] = (HPT_U8)(cap>>24);
 637                 rbuf[5] = (HPT_U8)(cap>>16);
 638                 rbuf[6] = (HPT_U8)(cap>>8);
 639                 rbuf[7] = (HPT_U8)cap;
 640                 rbuf[8] = 0;
 641                 rbuf[9] = 0;
 642                 rbuf[10] = 2;
 643                 rbuf[11] = 0;
 644
 645                 ccb->ccb_h.status = CAM_REQ_CMP;
 646                 break;
 647         }
 648
 649         case READ_6:
 650         case READ_10:
 651         case READ_16:
 652         case WRITE_6:
 653         case WRITE_10:
 654         case WRITE_16:
 655         case 0x13:
 656         case 0x2f:
 657         {
 658                 int error;
 659
 660                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 661                 if(!pCmd){
 662                         KdPrint(("Failed to allocate command!"));
 663                         ccb->ccb_h.status = CAM_BUSY;
 664                         break;
 665                 }
 666
 667                 switch (cdb[0]) {
 668                 case READ_6:
 669                 case WRITE_6:
 670                 case 0x13:
 671                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 672                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 673                         break;
 674                 case READ_16:
 675                 case WRITE_16:
 676                 {
 677                         HPT_U64 block =
 678                                 ((HPT_U64)cdb[2]<<56) |
 679                                 ((HPT_U64)cdb[3]<<48) |
 680                                 ((HPT_U64)cdb[4]<<40) |
 681                                 ((HPT_U64)cdb[5]<<32) |
 682                                 ((HPT_U64)cdb[6]<<24) |
 683                                 ((HPT_U64)cdb[7]<<16) |
 684                                 ((HPT_U64)cdb[8]<<8) |
 685                                 ((HPT_U64)cdb[9]);
 686                         pCmd->uCmd.Ide.Lba = block;
 687                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 688                         break;
 689                 }
 690
 691                 default:
 692                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 693                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 694                         break;
 695                 }
 696
 697                 switch (cdb[0]) {
 698                 case READ_6:
 699                 case READ_10:
 700                 case READ_16:
 701                         pCmd->flags.data_in = 1;
 702                         break;
 703                 case WRITE_6:
 704                 case WRITE_10:
 705                 case WRITE_16:
 706                         pCmd->flags.data_out = 1;
 707                         break;
 708                 }
 709                 pCmd->priv = ext = cmdext_get(vbus_ext);
 710                 HPT_ASSERT(ext);
 711                 ext->ccb = ccb;
 712                 pCmd->target = vd;
 713                 pCmd->done = os_cmddone;
 714                 pCmd->buildsgl = os_buildsgl;
 715                 pCmd->psg = ext->psg;
 716                 pCmd->flags.physical_sg = 1;
 717                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 718                                         ext->dma_map,
 719                                         ccb,
 720                                         hpt_io_dmamap_callback, pCmd,
 721                                         BUS_DMA_WAITOK
 722                                         );
 723                 KdPrint(("bus_dmamap_load return %d", error));
 724                 if (error && error!=EINPROGRESS) {
 725                         os_printk("bus_dmamap_load error %d", error);
 726                         cmdext_put(ext);
 727                         ldm_free_cmds(pCmd);
 728                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 729                         xpt_done(ccb);
 730                 }
 731                 return;
 732         }
 733
 734         default:
 735                 ccb->ccb_h.status = CAM_REQ_INVALID;
 736                 break;
 737         }
 738
 739         xpt_done(ccb);
 740         return;
 741 }
 742
 743 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 744 {
 745         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 746
 747         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 748
 749         hpt_assert_vbus_locked(vbus_ext);
 750         switch (ccb->ccb_h.func_code) {
 751
 752         case XPT_SCSI_IO:
 753                 hpt_scsi_io(vbus_ext, ccb);
 754                 return;
 755
 756         case XPT_RESET_BUS:
 757                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 758                 break;
 759
 760         case XPT_GET_TRAN_SETTINGS:
 761         case XPT_SET_TRAN_SETTINGS:
 762                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 763                 break;
 764
 765         case XPT_CALC_GEOMETRY:
 766                 cam_calc_geometry(&ccb->ccg, 1);
 767                 break;
 768
 769         case XPT_PATH_INQ:
 770         {
 771                 struct ccb_pathinq *cpi = &ccb->cpi;
 772
 773                 cpi->version_num = 1;
 774                 cpi->hba_inquiry = PI_SDTR_ABLE;
 775                 cpi->target_sprt = 0;
 776                 cpi->hba_misc = PIM_NOBUSRESET;
 777                 cpi->hba_eng_cnt = 0;
 778                 cpi->max_target = osm_max_targets;
 779                 cpi->max_lun = 0;
 780                 cpi->unit_number = cam_sim_unit(sim);
 781                 cpi->bus_id = cam_sim_bus(sim);
 782                 cpi->initiator_id = osm_max_targets;
 783                 cpi->base_transfer_speed = 3300;
 784
 785                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 786                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 787                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 788                 cpi->transport = XPORT_SPI;
 789                 cpi->transport_version = 2;
 790                 cpi->protocol = PROTO_SCSI;
 791                 cpi->protocol_version = SCSI_REV_2;
 792                 cpi->ccb_h.status = CAM_REQ_CMP;
 793                 break;
 794         }
 795
 796         default:
 797                 ccb->ccb_h.status = CAM_REQ_INVALID;
 798                 break;
 799         }
 800
 801         xpt_done(ccb);
 802         return;
 803 }
 804
 805 static void hpt_pci_intr(void *arg)
 806 {
 807         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 808         hpt_lock_vbus(vbus_ext);
 809         ldm_intr((PVBUS)vbus_ext->vbus);
 810         hpt_unlock_vbus(vbus_ext);
 811 }
 812
 813 static void hpt_poll(struct cam_sim *sim)
 814 {
 815         PVBUS_EXT vbus_ext = cam_sim_softc(sim);
 816         hpt_assert_vbus_locked(vbus_ext);
 817         ldm_intr((PVBUS)vbus_ext->vbus);
 818 }
 819
 820 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 821 {
 822         KdPrint(("hpt_async"));
 823 }
 824
 825 static int hpt_shutdown(device_t dev)
 826 {
 827         KdPrint(("hpt_shutdown(dev=%p)", dev));
 828         return 0;
 829 }
 830
 831 static int hpt_detach(device_t dev)
 832 {
 833         /* we don't allow the driver to be unloaded. */
 834         return EBUSY;
 835 }
 836
 837 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 838 {
 839         arg->ioctl_cmnd = 0;
 840         wakeup(arg);
 841 }
 842
 843 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 844 {
 845         ioctl_args->result = -1;
 846         ioctl_args->done = hpt_ioctl_done;
 847         ioctl_args->ioctl_cmnd = (void *)1;
 848
 849         hpt_lock_vbus(vbus_ext);
 850         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 851
 852         while (ioctl_args->ioctl_cmnd) {
 853                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
 854                         break;
 855                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 856                 __hpt_do_tasks(vbus_ext);
 857         }
 858
 859         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 860
 861         hpt_unlock_vbus(vbus_ext);
 862 }
 863
 864 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 865 {
 866         PVBUS vbus;
 867         PVBUS_EXT vbus_ext;
 868
 869         ldm_for_each_vbus(vbus, vbus_ext) {
 870                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 871                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 872                         return;
 873         }
 874 }
 875
 876 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 877         IOCTL_ARG arg;\
 878         arg.dwIoControlCode = code;\
 879         arg.lpInBuffer = inbuf;\
 880         arg.lpOutBuffer = outbuf;\
 881         arg.nInBufferSize = insize;\
 882         arg.nOutBufferSize = outsize;\
 883         arg.lpBytesReturned = 0;\
 884         hpt_do_ioctl(&arg);\
 885         arg.result;\
 886 })
 887
 888 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 889
 890 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 891 {
 892         int i;
 893         HPT_U32 count = nMaxCount-1;
 894
 895         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 896                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 897                 return -1;
 898
 899         nMaxCount = (int)pIds[0];
 900         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 901         return nMaxCount;
 902 }
 903
 904 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 905 {
 906         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 907                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 908 }
 909
 910 /* not belong to this file logically, but we want to use ioctl interface */
 911 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 912 {
 913         LOGICAL_DEVICE_INFO_V3 devinfo;
 914         int i, result;
 915         DEVICEID param[2] = { id, 0 };
 916
 917         if (hpt_get_device_info_v3(id, &devinfo))
 918                 return -1;
 919
 920         if (devinfo.Type!=LDT_ARRAY)
 921                 return -1;
 922
 923         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 924                 param[1] = AS_REBUILD_ABORT;
 925         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 926                 param[1] = AS_VERIFY_ABORT;
 927         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 928                 param[1] = AS_INITIALIZE_ABORT;
 929         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 930                 param[1] = AS_TRANSFORM_ABORT;
 931         else
 932                 return -1;
 933
 934         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 935         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 936                                 param, sizeof(param), 0, 0);
 937
 938         for (i=0; i<devinfo.u.array.nDisk; i++)
 939                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 940                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 941
 942         return result;
 943 }
 944
 945 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 946 {
 947         DEVICEID ids[32];
 948         int i, count;
 949
 950         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 951
 952         for (i=0; i<count; i++)
 953                 __hpt_stop_tasks(vbus_ext, ids[i]);
 954 }
 955
 956 static  d_open_t        hpt_open;
 957 static  d_close_t       hpt_close;
 958 static  d_ioctl_t       hpt_ioctl;
 959 static  int             hpt_rescan_bus(void);
 960
 961 static struct cdevsw hpt_cdevsw = {
 962         .d_open =       hpt_open,
 963         .d_close =      hpt_close,
 964         .d_ioctl =      hpt_ioctl,
 965         .d_name =       driver_name,
 966         .d_version =    D_VERSION,
 967 };
 968
 969 static struct intr_config_hook hpt_ich;
 970
 971 /*
 972  * hpt_final_init will be called after all hpt_attach.
 973  */
 974 static void hpt_final_init(void *dummy)
 975 {
 976         int       i;
 977         PVBUS_EXT vbus_ext;
 978         PVBUS vbus;
 979         PHBA hba;
 980
 981         /* Clear the config hook */
 982         config_intrhook_disestablish(&hpt_ich);
 983
 984         /* allocate memory */
 985         i = 0;
 986         ldm_for_each_vbus(vbus, vbus_ext) {
 987                 if (hpt_alloc_mem(vbus_ext)) {
 988                         os_printk("out of memory");
 989                         return;
 990                 }
 991                 i++;
 992         }
 993
 994         if (!i) {
 995                 if (bootverbose)
 996                         os_printk("no controller detected.");
 997                 return;
 998         }
 999
1000         /* initializing hardware */
1001         ldm_for_each_vbus(vbus, vbus_ext) {
1002                 /* make timer available here */
1003                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
1004                 callout_init_mtx(&vbus_ext->timer, &vbus_ext->lock, 0);
1005                 if (hpt_init_vbus(vbus_ext)) {
1006                         os_printk("fail to initialize hardware");
1007                         break; /* FIXME */
1008                 }
1009         }
1010
1011         /* register CAM interface */
1012         ldm_for_each_vbus(vbus, vbus_ext) {
1013                 struct cam_devq *devq;
1014                 struct ccb_setasync     ccb;
1015
1016                 if (bus_dma_tag_create(NULL,/* parent */
1017                                 4,      /* alignment */
1018                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1019                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1020                                 BUS_SPACE_MAXADDR,      /* highaddr */
1021                                 NULL, NULL,             /* filter, filterarg */
1022                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1023                                 os_max_sg_descriptors,  /* nsegments */
1024                                 0x10000,        /* maxsegsize */
1025                                 BUS_DMA_WAITOK,         /* flags */
1026                                 busdma_lock_mutex,      /* lockfunc */
1027                                 &vbus_ext->lock,                /* lockfuncarg */
1028                                 &vbus_ext->io_dmat      /* tag */))
1029                 {
1030                         return ;
1031                 }
1032
1033                 for (i=0; i<os_max_queue_comm; i++) {
1034                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1035                         if (!ext) {
1036                                 os_printk("Can't alloc cmdext(%d)", i);
1037                                 return ;
1038                         }
1039                         ext->vbus_ext = vbus_ext;
1040                         ext->next = vbus_ext->cmdext_list;
1041                         vbus_ext->cmdext_list = ext;
1042
1043                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1044                                 os_printk("Can't create dma map(%d)", i);
1045                                 return ;
1046                         }
1047                         callout_init_mtx(&ext->timeout, &vbus_ext->lock, 0);
1048                 }
1049
1050                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1051                         os_printk("cam_simq_alloc failed");
1052                         return ;
1053                 }
1054
1055                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1056                                 vbus_ext, 0, &vbus_ext->lock, os_max_queue_comm,
1057                                 /*tagged*/8,  devq);
1058
1059                 if (!vbus_ext->sim) {
1060                         os_printk("cam_sim_alloc failed");
1061                         cam_simq_free(devq);
1062                         return ;
1063                 }
1064
1065                 hpt_lock_vbus(vbus_ext);
1066                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
1067                         os_printk("xpt_bus_register failed");
1068                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
1069                         hpt_unlock_vbus(vbus_ext);
1070                         vbus_ext->sim = NULL;
1071                         return ;
1072                 }
1073
1074                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1075                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1076                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1077                 {
1078                         os_printk("xpt_create_path failed");
1079                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1080                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
1081                         hpt_unlock_vbus(vbus_ext);
1082                         vbus_ext->sim = NULL;
1083                         return ;
1084                 }
1085                 hpt_unlock_vbus(vbus_ext);
1086
1087                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1088                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1089                 ccb.event_enable = AC_LOST_DEVICE;
1090                 ccb.callback = hpt_async;
1091                 ccb.callback_arg = vbus_ext;
1092                 xpt_action((union ccb *)&ccb);
1093
1094                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1095                         int rid = 0;
1096                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1097                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1098                         {
1099                                 os_printk("can't allocate interrupt");
1100                                 return ;
1101                         }
1102
1103                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM | INTR_MPSAFE,
1104                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
1105                         {
1106                                 os_printk("can't set up interrupt");
1107                                 return ;
1108                         }
1109                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1110                 }
1111
1112                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1113                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1114                 if (!vbus_ext->shutdown_eh)
1115                         os_printk("Shutdown event registration failed");
1116         }
1117
1118         ldm_for_each_vbus(vbus, vbus_ext) {
1119                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1120                 if (vbus_ext->tasks)
1121                         TASK_ENQUEUE(&vbus_ext->worker);
1122         }
1123
1124         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1125             S_IRUSR | S_IWUSR, "%s", driver_name);
1126 }
1127
1128 #if defined(KLD_MODULE)
1129
1130 typedef struct driverlink *driverlink_t;
1131 struct driverlink {
1132         kobj_class_t    driver;
1133         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1134 };
1135
1136 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1137
1138 struct devclass {
1139         TAILQ_ENTRY(devclass) link;
1140         devclass_t      parent;         /* parent in devclass hierarchy */
1141         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1142         char            *name;
1143         device_t        *devices;       /* array of devices indexed by unit */
1144         int             maxunit;        /* size of devices array */
1145 };
1146
1147 static void override_kernel_driver(void)
1148 {
1149         driverlink_t dl, dlfirst;
1150         driver_t *tmpdriver;
1151         devclass_t dc = devclass_find("pci");
1152
1153         if (dc){
1154                 dlfirst = TAILQ_FIRST(&dc->drivers);
1155                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1156                         if(strcmp(dl->driver->name, driver_name) == 0) {
1157                                 tmpdriver=dl->driver;
1158                                 dl->driver=dlfirst->driver;
1159                                 dlfirst->driver=tmpdriver;
1160                                 break;
1161                         }
1162                 }
1163         }
1164 }
1165
1166 #else
1167 #define override_kernel_driver()
1168 #endif
1169
1170 static void hpt_init(void *dummy)
1171 {
1172         if (bootverbose)
1173                 os_printk("%s %s", driver_name_long, driver_ver);
1174
1175         override_kernel_driver();
1176         init_config();
1177
1178         hpt_ich.ich_func = hpt_final_init;
1179         hpt_ich.ich_arg = NULL;
1180         if (config_intrhook_establish(&hpt_ich) != 0) {
1181                 printf("%s: cannot establish configuration hook\n",
1182                     driver_name_long);
1183         }
1184
1185 }
1186 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1187
1188 /*
1189  * CAM driver interface
1190  */
1191 static device_method_t driver_methods[] = {
1192         /* Device interface */
1193         DEVMETHOD(device_probe,         hpt_probe),
1194         DEVMETHOD(device_attach,        hpt_attach),
1195         DEVMETHOD(device_detach,        hpt_detach),
1196         DEVMETHOD(device_shutdown,      hpt_shutdown),
1197         DEVMETHOD_END
1198 };
1199
1200 static driver_t hpt_pci_driver = {
1201         driver_name,
1202         driver_methods,
1203         sizeof(HBA)
1204 };
1205
1206 static devclass_t       hpt_devclass;
1207
1208 #ifndef TARGETNAME
1209 #error "no TARGETNAME found"
1210 #endif
1211
1212 /* use this to make TARGETNAME be expanded */
1213 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1214 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1215 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1216 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1217 __MODULE_VERSION(TARGETNAME, 1);
1218 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1219
1220 static int hpt_open(struct cdev *dev, int flags, int devtype, struct thread *td)
1221 {
1222         return 0;
1223 }
1224
1225 static int hpt_close(struct cdev *dev, int flags, int devtype, struct thread *td)
1226 {
1227         return 0;
1228 }
1229
1230 static int hpt_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
1231 {
1232         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1233         IOCTL_ARG ioctl_args;
1234         HPT_U32 bytesReturned = 0;
1235
1236         switch (cmd){
1237         case HPT_DO_IOCONTROL:
1238         {
1239                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1240                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1241                                 piop->dwIoControlCode,
1242                                 piop->lpInBuffer,
1243                                 piop->nInBufferSize,
1244                                 piop->lpOutBuffer,
1245                                 piop->nOutBufferSize));
1246
1247                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1248
1249                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1250                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1251                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1252                 ioctl_args.lpBytesReturned = &bytesReturned;
1253
1254                 if (ioctl_args.nInBufferSize) {
1255                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1256                         if (!ioctl_args.lpInBuffer)
1257                                 goto invalid;
1258                         if (copyin((void*)piop->lpInBuffer,
1259                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1260                                 goto invalid;
1261                 }
1262
1263                 if (ioctl_args.nOutBufferSize) {
1264                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK | M_ZERO);
1265                         if (!ioctl_args.lpOutBuffer)
1266                                 goto invalid;
1267                 }
1268
1269                 hpt_do_ioctl(&ioctl_args);
1270
1271                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1272                         if (piop->nOutBufferSize) {
1273                                 if (copyout(ioctl_args.lpOutBuffer,
1274                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1275                                         goto invalid;
1276                         }
1277                         if (piop->lpBytesReturned) {
1278                                 if (copyout(&bytesReturned,
1279                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1280                                         goto invalid;
1281                         }
1282                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1283                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1284                         return 0;
1285                 }
1286 invalid:
1287                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1288                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1289                 return EFAULT;
1290         }
1291         return EFAULT;
1292         }
1293
1294         case HPT_SCAN_BUS:
1295         {
1296                 return hpt_rescan_bus();
1297         }
1298         default:
1299                 KdPrint(("invalid command!"));
1300                 return EFAULT;
1301         }
1302
1303 }
1304
1305 static int      hpt_rescan_bus(void)
1306 {
1307         union ccb                       *ccb;
1308         PVBUS                           vbus;
1309         PVBUS_EXT                       vbus_ext;
1310
1311         ldm_for_each_vbus(vbus, vbus_ext) {
1312                 if ((ccb = xpt_alloc_ccb()) == NULL)
1313                         return(ENOMEM);
1314                 if (xpt_create_path(&ccb->ccb_h.path, NULL,
1315                     cam_sim_path(vbus_ext->sim),
1316                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1317                         xpt_free_ccb(ccb);
1318                         return(EIO);
1319                 }
1320                 xpt_rescan(ccb);
1321         }
1322
1323         return(0);
1324 }