sys/dev/hpt27xx/hpt27xx_osm_bsd.c

   1 /*-
   2  * Copyright (c) 2011 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  * $FreeBSD$
  27  */
  28
  29 #include <dev/hpt27xx/hpt27xx_config.h>
  30
  31 #include <dev/hpt27xx/os_bsd.h>
  32 #include <dev/hpt27xx/hptintf.h>
  33
  34 static HIM *hpt_match(device_t dev)
  35 {
  36         PCI_ID pci_id;
  37         HIM *him;
  38         int i;
  39
  40         for (him = him_list; him; him = him->next) {
  41                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  42                         if (him->get_controller_count)
  43                                 him->get_controller_count(&pci_id,0,0);
  44                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  45                                 (pci_get_device(dev) == pci_id.did)){
  46                                 return (him);
  47                         }
  48                 }
  49         }
  50         return (NULL);
  51 }
  52
  53 static int hpt_probe(device_t dev)
  54 {
  55         HIM *him;
  56
  57         him = hpt_match(dev);
  58         if (him != NULL) {
  59                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  60                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  61                         ));
  62                 device_set_desc(dev, him->name);
  63                 return (BUS_PROBE_DEFAULT);
  64         }
  65
  66         return (ENXIO);
  67 }
  68
  69 static int hpt_attach(device_t dev)
  70 {
  71         PHBA hba = (PHBA)device_get_softc(dev);
  72         HIM *him;
  73         PCI_ID pci_id;
  74         HPT_UINT size;
  75         PVBUS vbus;
  76         PVBUS_EXT vbus_ext;
  77
  78         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  79
  80         him = hpt_match(dev);
  81         hba->ext_type = EXT_TYPE_HBA;
  82         hba->ldm_adapter.him = him;
  83         pci_enable_busmaster(dev);
  84
  85         pci_id.vid = pci_get_vendor(dev);
  86         pci_id.did = pci_get_device(dev);
  87         pci_id.rev = pci_get_revid(dev);
  88         pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
  89
  90         size = him->get_adapter_size(&pci_id);
  91         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
  92         if (!hba->ldm_adapter.him_handle)
  93                 return ENXIO;
  94
  95         hba->pcidev = dev;
  96         hba->pciaddr.tree = 0;
  97         hba->pciaddr.bus = pci_get_bus(dev);
  98         hba->pciaddr.device = pci_get_slot(dev);
  99         hba->pciaddr.function = pci_get_function(dev);
 100
 101         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 102                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 103                 return ENXIO;
 104         }
 105
 106         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 107                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 108
 109         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 110                 size = ldm_get_vbus_size();
 111                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 112                 if (!vbus_ext) {
 113                         free(hba->ldm_adapter.him_handle, M_DEVBUF);
 114                         return ENXIO;
 115                 }
 116                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 117                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 118                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 119                 ldm_register_adapter(&hba->ldm_adapter);
 120         }
 121
 122         ldm_for_each_vbus(vbus, vbus_ext) {
 123                 if (hba->ldm_adapter.vbus==vbus) {
 124                         hba->vbus_ext = vbus_ext;
 125                         hba->next = vbus_ext->hba_list;
 126                         vbus_ext->hba_list = hba;
 127                         break;
 128                 }
 129         }
 130         return 0;
 131 }
 132
 133 /*
 134  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 135  * but there are some problems currently (alignment, etc).
 136  */
 137 static __inline void *__get_free_pages(int order)
 138 {
 139         /* don't use low memory - other devices may get starved */
 140         return contigmalloc(PAGE_SIZE<<order,
 141                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 142 }
 143
 144 static __inline void free_pages(void *p, int order)
 145 {
 146         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 147 }
 148
 149 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 150 {
 151         PHBA hba;
 152         struct freelist *f;
 153         HPT_UINT i;
 154         void **p;
 155
 156         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 157                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 158
 159         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 160
 161         for (f=vbus_ext->freelist_head; f; f=f->next) {
 162                 KdPrint(("%s: %d*%d=%d bytes",
 163                         f->tag, f->count, f->size, f->count*f->size));
 164                 for (i=0; i<f->count; i++) {
 165                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
 166                         if (!p) return (ENXIO);
 167                         *p = f->head;
 168                         f->head = p;
 169                 }
 170         }
 171
 172         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 173                 int order, size, j;
 174
 175                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 176
 177                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 178                         ;
 179
 180                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 181                         f->tag, f->count, f->size, f->count*f->size, order));
 182                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 183
 184                 for (i=0; i<f->count;) {
 185                         p = (void **)__get_free_pages(order);
 186                         if (!p) return -1;
 187                         for (j = size/f->size; j && i<f->count; i++,j--) {
 188                                 *p = f->head;
 189                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 190                                 f->head = p;
 191                                 p = (void **)((unsigned long)p + f->size);
 192                         }
 193                 }
 194         }
 195
 196         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 197
 198         for (i=0; i<os_max_cache_pages; i++) {
 199                 p = (void **)__get_free_pages(0);
 200                 if (!p) return -1;
 201                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 202                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 203         }
 204
 205         return 0;
 206 }
 207
 208 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 209 {
 210         struct freelist *f;
 211         void *p;
 212         int i;
 213         BUS_ADDRESS bus;
 214
 215         for (f=vbus_ext->freelist_head; f; f=f->next) {
 216 #if DBG
 217                 if (f->count!=f->reserved_count) {
 218                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 219                 }
 220 #endif
 221                 while ((p=freelist_get(f)))
 222                         free(p, M_DEVBUF);
 223         }
 224
 225         for (i=0; i<os_max_cache_pages; i++) {
 226                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 227                 HPT_ASSERT(p);
 228                 free_pages(p, 0);
 229         }
 230
 231         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 232                 int order, size;
 233 #if DBG
 234                 if (f->count!=f->reserved_count) {
 235                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 236                 }
 237 #endif
 238                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 239
 240                 while ((p=freelist_get_dma(f, &bus))) {
 241                         if (order)
 242                                 free_pages(p, order);
 243                         else {
 244                         /* can't free immediately since other blocks in this page may still be in the list */
 245                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 246                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 247                         }
 248                 }
 249         }
 250
 251         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 252                 free_pages(p, 0);
 253 }
 254
 255 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 256 {
 257         PHBA hba;
 258
 259         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 260                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 261                         KdPrint(("fail to initialize %p", hba));
 262                         return -1;
 263                 }
 264
 265         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 266         return 0;
 267 }
 268
 269 static void hpt_flush_done(PCOMMAND pCmd)
 270 {
 271         PVDEV vd = pCmd->target;
 272
 273         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 274                 vd = vd->u.array.transform->target;
 275                 HPT_ASSERT(vd);
 276                 pCmd->target = vd;
 277                 pCmd->Result = RETURN_PENDING;
 278                 vdev_queue_cmd(pCmd);
 279                 return;
 280         }
 281
 282         *(int *)pCmd->priv = 1;
 283         wakeup(pCmd);
 284 }
 285
 286 /*
 287  * flush a vdev (without retry).
 288  */
 289 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 290 {
 291         PCOMMAND pCmd;
 292         int result = 0, done;
 293         HPT_UINT count;
 294
 295         KdPrint(("flusing dev %p", vd));
 296
 297         hpt_lock_vbus(vbus_ext);
 298
 299         if (mIsArray(vd->type) && vd->u.array.transform)
 300                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 301                                         vd->u.array.transform->target->cmds_per_request);
 302         else
 303                 count = vd->cmds_per_request;
 304
 305         pCmd = ldm_alloc_cmds(vd->vbus, count);
 306
 307         if (!pCmd) {
 308                 hpt_unlock_vbus(vbus_ext);
 309                 return -1;
 310         }
 311
 312         pCmd->type = CMD_TYPE_FLUSH;
 313         pCmd->flags.hard_flush = 1;
 314         pCmd->target = vd;
 315         pCmd->done = hpt_flush_done;
 316         done = 0;
 317         pCmd->priv = &done;
 318
 319         ldm_queue_cmd(pCmd);
 320
 321         if (!done) {
 322                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
 323                         ldm_reset_vbus(vd->vbus);
 324                 }
 325         }
 326
 327         KdPrint(("flush result %d", pCmd->Result));
 328
 329         if (pCmd->Result!=RETURN_SUCCESS)
 330                 result = -1;
 331
 332         ldm_free_cmds(pCmd);
 333
 334         hpt_unlock_vbus(vbus_ext);
 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         vbus_ext->worker.ta_context = 0;
 351
 352         /* flush devices */
 353         for (i=0; i<osm_max_targets; i++) {
 354                 PVDEV vd = ldm_find_target(vbus, i);
 355                 if (vd) {
 356                         /* retry once */
 357                         if (hpt_flush_vdev(vbus_ext, vd))
 358                                 hpt_flush_vdev(vbus_ext, vd);
 359                 }
 360         }
 361
 362         hpt_lock_vbus(vbus_ext);
 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         free(vbus_ext, M_DEVBUF);
 379         KdPrint(("hpt_shutdown_vbus done"));
 380 }
 381
 382 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 383 {
 384         OSM_TASK *tasks;
 385
 386         tasks = vbus_ext->tasks;
 387         vbus_ext->tasks = 0;
 388
 389         while (tasks) {
 390                 OSM_TASK *t = tasks;
 391                 tasks = t->next;
 392                 t->next = 0;
 393                 t->func(vbus_ext->vbus, t->data);
 394         }
 395 }
 396
 397 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 398 {
 399         if(vbus_ext){
 400                 hpt_lock_vbus(vbus_ext);
 401                 __hpt_do_tasks(vbus_ext);
 402                 hpt_unlock_vbus(vbus_ext);
 403         }
 404 }
 405
 406 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 407 static void hpt_poll(struct cam_sim *sim);
 408 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 409 static void hpt_pci_intr(void *arg);
 410
 411 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 412 {
 413         POS_CMDEXT p = vbus_ext->cmdext_list;
 414         if (p)
 415                 vbus_ext->cmdext_list = p->next;
 416         return p;
 417 }
 418
 419 static __inline void cmdext_put(POS_CMDEXT p)
 420 {
 421         p->next = p->vbus_ext->cmdext_list;
 422         p->vbus_ext->cmdext_list = p;
 423 }
 424
 425 static void hpt_timeout(void *arg)
 426 {
 427         PCOMMAND pCmd = (PCOMMAND)arg;
 428         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 429
 430         KdPrint(("pCmd %p timeout", pCmd));
 431
 432         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 433 }
 434
 435 static void os_cmddone(PCOMMAND pCmd)
 436 {
 437         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 438         union ccb *ccb = ext->ccb;
 439
 440         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 441
 442         callout_stop(&ext->timeout);
 443
 444         switch(pCmd->Result) {
 445         case RETURN_SUCCESS:
 446                 ccb->ccb_h.status = CAM_REQ_CMP;
 447                 break;
 448         case RETURN_BAD_DEVICE:
 449                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 450                 break;
 451         case RETURN_DEVICE_BUSY:
 452                 ccb->ccb_h.status = CAM_BUSY;
 453                 break;
 454         case RETURN_INVALID_REQUEST:
 455                 ccb->ccb_h.status = CAM_REQ_INVALID;
 456                 break;
 457         case RETURN_SELECTION_TIMEOUT:
 458                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 459                 break;
 460         case RETURN_RETRY:
 461                 ccb->ccb_h.status = CAM_BUSY;
 462                 break;
 463         default:
 464                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 465                 break;
 466         }
 467
 468         if (pCmd->flags.data_in) {
 469                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 470         }
 471         else if (pCmd->flags.data_out) {
 472                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 473         }
 474
 475         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 476
 477         cmdext_put(ext);
 478         ldm_free_cmds(pCmd);
 479         xpt_done(ccb);
 480 }
 481
 482 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 483 {
 484         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 485         union ccb *ccb = ext->ccb;
 486
 487         if (logical) {
 488                 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 489                 pSg->size = ccb->csio.dxfer_len;
 490                 pSg->eot = 1;
 491                 return TRUE;
 492         }
 493
 494         /* since we have provided physical sg, nobody will ask us to build physical sg */
 495         HPT_ASSERT(0);
 496         return FALSE;
 497 }
 498
 499 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 500 {
 501         PCOMMAND pCmd = (PCOMMAND)arg;
 502         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 503         PSG psg = pCmd->psg;
 504         int idx;
 505
 506         HPT_ASSERT(pCmd->flags.physical_sg);
 507
 508         if (error)
 509                 panic("busdma error");
 510
 511         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 512
 513         if (nsegs != 0) {
 514                 for (idx = 0; idx < nsegs; idx++, psg++) {
 515                         psg->addr.bus = segs[idx].ds_addr;
 516                         psg->size = segs[idx].ds_len;
 517                         psg->eot = 0;
 518                 }
 519                 psg[-1].eot = 1;
 520
 521                 if (pCmd->flags.data_in) {
 522                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 523                             BUS_DMASYNC_PREREAD);
 524                 }
 525                 else if (pCmd->flags.data_out) {
 526                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 527                             BUS_DMASYNC_PREWRITE);
 528                 }
 529         }
 530         callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 531         ldm_queue_cmd(pCmd);
 532 }
 533
 534 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 535 {
 536         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 537         PVDEV vd;
 538         PCOMMAND pCmd;
 539         POS_CMDEXT ext;
 540         HPT_U8 *cdb;
 541
 542         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 543                 cdb = ccb->csio.cdb_io.cdb_ptr;
 544         else
 545                 cdb = ccb->csio.cdb_io.cdb_bytes;
 546
 547         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 548                 ccb,
 549                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 550                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 551         ));
 552
 553         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 554         if (ccb->ccb_h.target_lun != 0 ||
 555                 ccb->ccb_h.target_id >= osm_max_targets ||
 556                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 557         {
 558                 ccb->ccb_h.status = CAM_TID_INVALID;
 559                 xpt_done(ccb);
 560                 return;
 561         }
 562
 563         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 564
 565         if (!vd) {
 566                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 567                 xpt_done(ccb);
 568                 return;
 569         }
 570
 571         switch (cdb[0]) {
 572         case TEST_UNIT_READY:
 573         case START_STOP_UNIT:
 574         case SYNCHRONIZE_CACHE:
 575                 ccb->ccb_h.status = CAM_REQ_CMP;
 576                 break;
 577
 578         case INQUIRY:
 579                 {
 580                         PINQUIRYDATA inquiryData;
 581                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 582                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 583
 584                         inquiryData->AdditionalLength = 31;
 585                         inquiryData->CommandQueue = 1;
 586                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 587                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 588
 589                         if (vd->target_id / 10) {
 590                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 591                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 592                         }
 593                         else
 594                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 595
 596                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 597
 598                         ccb->ccb_h.status = CAM_REQ_CMP;
 599                 }
 600                 break;
 601
 602         case READ_CAPACITY:
 603         {
 604                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 605                 HPT_U32 cap;
 606
 607                 if (vd->capacity>0xfffffffful)
 608                         cap = 0xfffffffful;
 609                 else
 610                         cap = vd->capacity - 1;
 611
 612                 rbuf[0] = (HPT_U8)(cap>>24);
 613                 rbuf[1] = (HPT_U8)(cap>>16);
 614                 rbuf[2] = (HPT_U8)(cap>>8);
 615                 rbuf[3] = (HPT_U8)cap;
 616                 rbuf[4] = 0;
 617                 rbuf[5] = 0;
 618                 rbuf[6] = 2;
 619                 rbuf[7] = 0;
 620
 621                 ccb->ccb_h.status = CAM_REQ_CMP;
 622                 break;
 623         }
 624
 625         case SERVICE_ACTION_IN:
 626         {
 627                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 628                 HPT_U64 cap = vd->capacity - 1;
 629
 630                 rbuf[0] = (HPT_U8)(cap>>56);
 631                 rbuf[1] = (HPT_U8)(cap>>48);
 632                 rbuf[2] = (HPT_U8)(cap>>40);
 633                 rbuf[3] = (HPT_U8)(cap>>32);
 634                 rbuf[4] = (HPT_U8)(cap>>24);
 635                 rbuf[5] = (HPT_U8)(cap>>16);
 636                 rbuf[6] = (HPT_U8)(cap>>8);
 637                 rbuf[7] = (HPT_U8)cap;
 638                 rbuf[8] = 0;
 639                 rbuf[9] = 0;
 640                 rbuf[10] = 2;
 641                 rbuf[11] = 0;
 642
 643                 ccb->ccb_h.status = CAM_REQ_CMP;
 644                 break;
 645         }
 646
 647         case READ_6:
 648         case READ_10:
 649         case READ_16:
 650         case WRITE_6:
 651         case WRITE_10:
 652         case WRITE_16:
 653         case 0x13:
 654         case 0x2f:
 655         case 0x8f: /* VERIFY_16 */
 656         {
 657                 int error;
 658                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 659                 if(!pCmd){
 660                         KdPrint(("Failed to allocate command!"));
 661                         ccb->ccb_h.status = CAM_BUSY;
 662                         break;
 663                 }
 664
 665                 switch (cdb[0]) {
 666                 case READ_6:
 667                 case WRITE_6:
 668                 case 0x13:
 669                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 670                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 671                         break;
 672                 case READ_16:
 673                 case WRITE_16:
 674                 case 0x8f: /* VERIFY_16 */
 675                 {
 676                         HPT_U64 block =
 677                                 ((HPT_U64)cdb[2]<<56) |
 678                                 ((HPT_U64)cdb[3]<<48) |
 679                                 ((HPT_U64)cdb[4]<<40) |
 680                                 ((HPT_U64)cdb[5]<<32) |
 681                                 ((HPT_U64)cdb[6]<<24) |
 682                                 ((HPT_U64)cdb[7]<<16) |
 683                                 ((HPT_U64)cdb[8]<<8) |
 684                                 ((HPT_U64)cdb[9]);
 685                         pCmd->uCmd.Ide.Lba = block;
 686                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 687                         break;
 688                 }
 689
 690                 default:
 691                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 692                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 693                         break;
 694                 }
 695
 696                 switch (cdb[0]) {
 697                 case READ_6:
 698                 case READ_10:
 699                 case READ_16:
 700                         pCmd->flags.data_in = 1;
 701                         break;
 702                 case WRITE_6:
 703                 case WRITE_10:
 704                 case WRITE_16:
 705                         pCmd->flags.data_out = 1;
 706                         break;
 707                 }
 708                 pCmd->priv = ext = cmdext_get(vbus_ext);
 709                 HPT_ASSERT(ext);
 710                 ext->ccb = ccb;
 711                 pCmd->target = vd;
 712                 pCmd->done = os_cmddone;
 713                 pCmd->buildsgl = os_buildsgl;
 714                 pCmd->psg = ext->psg;
 715                 pCmd->flags.physical_sg = 1;
 716                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 717                                         ext->dma_map, ccb,
 718                                         hpt_io_dmamap_callback, pCmd,
 719                                         BUS_DMA_WAITOK
 720                                         );
 721                 KdPrint(("bus_dmamap_load return %d", error));
 722                 if (error && error!=EINPROGRESS) {
 723                         os_printk("bus_dmamap_load error %d", error);
 724                         cmdext_put(ext);
 725                         ldm_free_cmds(pCmd);
 726                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 727                         xpt_done(ccb);
 728                 }
 729                 return;
 730         }
 731
 732         default:
 733                 ccb->ccb_h.status = CAM_REQ_INVALID;
 734                 break;
 735         }
 736
 737         xpt_done(ccb);
 738         return;
 739 }
 740
 741 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 742 {
 743         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 744
 745         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 746
 747         hpt_assert_vbus_locked(vbus_ext);
 748         switch (ccb->ccb_h.func_code) {
 749
 750         case XPT_SCSI_IO:
 751                 hpt_scsi_io(vbus_ext, ccb);
 752                 return;
 753
 754         case XPT_RESET_BUS:
 755                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 756                 break;
 757
 758         case XPT_GET_TRAN_SETTINGS:
 759         case XPT_SET_TRAN_SETTINGS:
 760                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 761                 break;
 762
 763         case XPT_CALC_GEOMETRY:
 764                 ccb->ccg.heads = 255;
 765                 ccb->ccg.secs_per_track = 63;
 766                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 767                 ccb->ccb_h.status = CAM_REQ_CMP;
 768                 break;
 769
 770         case XPT_PATH_INQ:
 771         {
 772                 struct ccb_pathinq *cpi = &ccb->cpi;
 773
 774                 cpi->version_num = 1;
 775                 cpi->hba_inquiry = PI_SDTR_ABLE;
 776                 cpi->target_sprt = 0;
 777                 cpi->hba_misc = PIM_NOBUSRESET;
 778                 cpi->hba_eng_cnt = 0;
 779                 cpi->max_target = osm_max_targets;
 780                 cpi->max_lun = 0;
 781                 cpi->unit_number = cam_sim_unit(sim);
 782                 cpi->bus_id = cam_sim_bus(sim);
 783                 cpi->initiator_id = osm_max_targets;
 784                 cpi->base_transfer_speed = 3300;
 785
 786                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 787                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 788                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 789                 cpi->transport = XPORT_SPI;
 790                 cpi->transport_version = 2;
 791                 cpi->protocol = PROTO_SCSI;
 792                 cpi->protocol_version = SCSI_REV_2;
 793                 cpi->ccb_h.status = CAM_REQ_CMP;
 794                 break;
 795         }
 796
 797         default:
 798                 ccb->ccb_h.status = CAM_REQ_INVALID;
 799                 break;
 800         }
 801
 802         xpt_done(ccb);
 803         return;
 804 }
 805
 806 static void hpt_pci_intr(void *arg)
 807 {
 808         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 809         hpt_lock_vbus(vbus_ext);
 810         ldm_intr((PVBUS)vbus_ext->vbus);
 811         hpt_unlock_vbus(vbus_ext);
 812 }
 813
 814 static void hpt_poll(struct cam_sim *sim)
 815 {
 816         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 817
 818         hpt_assert_vbus_locked(vbus_ext);
 819         ldm_intr((PVBUS)vbus_ext->vbus);
 820 }
 821
 822 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 823 {
 824         KdPrint(("hpt_async"));
 825 }
 826
 827 static int hpt_shutdown(device_t dev)
 828 {
 829         KdPrint(("hpt_shutdown(dev=%p)", dev));
 830         return 0;
 831 }
 832
 833 static int hpt_detach(device_t dev)
 834 {
 835         /* we don't allow the driver to be unloaded. */
 836         return EBUSY;
 837 }
 838
 839 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 840 {
 841         arg->ioctl_cmnd = 0;
 842         wakeup(arg);
 843 }
 844
 845 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 846 {
 847         ioctl_args->result = -1;
 848         ioctl_args->done = hpt_ioctl_done;
 849         ioctl_args->ioctl_cmnd = (void *)1;
 850
 851         hpt_lock_vbus(vbus_ext);
 852         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 853
 854         while (ioctl_args->ioctl_cmnd) {
 855                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
 856                         break;
 857                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 858                 __hpt_do_tasks(vbus_ext);
 859         }
 860
 861         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 862
 863         hpt_unlock_vbus(vbus_ext);
 864 }
 865
 866 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 867 {
 868         PVBUS vbus;
 869         PVBUS_EXT vbus_ext;
 870
 871         ldm_for_each_vbus(vbus, vbus_ext) {
 872                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 873                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 874                         return;
 875         }
 876 }
 877
 878 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 879         IOCTL_ARG arg;\
 880         arg.dwIoControlCode = code;\
 881         arg.lpInBuffer = inbuf;\
 882         arg.lpOutBuffer = outbuf;\
 883         arg.nInBufferSize = insize;\
 884         arg.nOutBufferSize = outsize;\
 885         arg.lpBytesReturned = 0;\
 886         hpt_do_ioctl(&arg);\
 887         arg.result;\
 888 })
 889
 890 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 891
 892 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 893 {
 894         int i;
 895         HPT_U32 count = nMaxCount-1;
 896
 897         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 898                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 899                 return -1;
 900
 901         nMaxCount = (int)pIds[0];
 902         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 903         return nMaxCount;
 904 }
 905
 906 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 907 {
 908         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 909                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 910 }
 911
 912 /* not belong to this file logically, but we want to use ioctl interface */
 913 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 914 {
 915         LOGICAL_DEVICE_INFO_V3 devinfo;
 916         int i, result;
 917         DEVICEID param[2] = { id, 0 };
 918
 919         if (hpt_get_device_info_v3(id, &devinfo))
 920                 return -1;
 921
 922         if (devinfo.Type!=LDT_ARRAY)
 923                 return -1;
 924
 925         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 926                 param[1] = AS_REBUILD_ABORT;
 927         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 928                 param[1] = AS_VERIFY_ABORT;
 929         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 930                 param[1] = AS_INITIALIZE_ABORT;
 931         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 932                 param[1] = AS_TRANSFORM_ABORT;
 933         else
 934                 return -1;
 935
 936         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 937         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 938                                 param, sizeof(param), 0, 0);
 939
 940         for (i=0; i<devinfo.u.array.nDisk; i++)
 941                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 942                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 943
 944         return result;
 945 }
 946
 947 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 948 {
 949         DEVICEID ids[32];
 950         int i, count;
 951
 952         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 953
 954         for (i=0; i<count; i++)
 955                 __hpt_stop_tasks(vbus_ext, ids[i]);
 956 }
 957
 958 static  d_open_t        hpt_open;
 959 static  d_close_t       hpt_close;
 960 static  d_ioctl_t       hpt_ioctl;
 961 static  int             hpt_rescan_bus(void);
 962
 963 static struct cdevsw hpt_cdevsw = {
 964         .d_open =       hpt_open,
 965         .d_close =      hpt_close,
 966         .d_ioctl =      hpt_ioctl,
 967         .d_name =       driver_name,
 968         .d_version =    D_VERSION,
 969 };
 970
 971 static struct intr_config_hook hpt_ich;
 972
 973 /*
 974  * hpt_final_init will be called after all hpt_attach.
 975  */
 976 static void hpt_final_init(void *dummy)
 977 {
 978         int       i,unit_number=0;
 979         PVBUS_EXT vbus_ext;
 980         PVBUS vbus;
 981         PHBA hba;
 982
 983         /* Clear the config hook */
 984         config_intrhook_disestablish(&hpt_ich);
 985
 986         /* allocate memory */
 987         i = 0;
 988         ldm_for_each_vbus(vbus, vbus_ext) {
 989                 if (hpt_alloc_mem(vbus_ext)) {
 990                         os_printk("out of memory");
 991                         return;
 992                 }
 993                 i++;
 994         }
 995
 996         if (!i) {
 997                 if (bootverbose)
 998                         os_printk("no controller detected.");
 999                 return;
1000         }
1001
1002         /* initializing hardware */
1003         ldm_for_each_vbus(vbus, vbus_ext) {
1004                 /* make timer available here */
1005                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
1006                 callout_init_mtx(&vbus_ext->timer, &vbus_ext->lock, 0);
1007                 if (hpt_init_vbus(vbus_ext)) {
1008                         os_printk("fail to initialize hardware");
1009                         break; /* FIXME */
1010                 }
1011         }
1012
1013         /* register CAM interface */
1014         ldm_for_each_vbus(vbus, vbus_ext) {
1015                 struct cam_devq *devq;
1016                 struct ccb_setasync     ccb;
1017
1018                 if (bus_dma_tag_create(NULL,/* parent */
1019                                 4,      /* alignment */
1020                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1021                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1022                                 BUS_SPACE_MAXADDR,      /* highaddr */
1023                                 NULL, NULL,             /* filter, filterarg */
1024                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1025                                 os_max_sg_descriptors,  /* nsegments */
1026                                 0x10000,        /* maxsegsize */
1027                                 BUS_DMA_WAITOK,         /* flags */
1028                                 busdma_lock_mutex,      /* lockfunc */
1029                                 &vbus_ext->lock,                /* lockfuncarg */
1030                                 &vbus_ext->io_dmat      /* tag */))
1031                 {
1032                         return ;
1033                 }
1034
1035                 for (i=0; i<os_max_queue_comm; i++) {
1036                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1037                         if (!ext) {
1038                                 os_printk("Can't alloc cmdext(%d)", i);
1039                                 return ;
1040                         }
1041                         ext->vbus_ext = vbus_ext;
1042                         ext->next = vbus_ext->cmdext_list;
1043                         vbus_ext->cmdext_list = ext;
1044
1045                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1046                                 os_printk("Can't create dma map(%d)", i);
1047                                 return ;
1048                         }
1049                         callout_init_mtx(&ext->timeout, &vbus_ext->lock, 0);
1050                 }
1051
1052                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1053                         os_printk("cam_simq_alloc failed");
1054                         return ;
1055                 }
1056
1057                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1058                                 vbus_ext, unit_number, &vbus_ext->lock, os_max_queue_comm, /*tagged*/8,  devq);
1059                 unit_number++;
1060                 if (!vbus_ext->sim) {
1061                         os_printk("cam_sim_alloc failed");
1062                         cam_simq_free(devq);
1063                         return ;
1064                 }
1065
1066                 hpt_lock_vbus(vbus_ext);
1067                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
1068                         hpt_unlock_vbus(vbus_ext);
1069                         os_printk("xpt_bus_register failed");
1070                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
1071                         vbus_ext->sim = NULL;
1072                         return ;
1073                 }
1074
1075                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1076                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1077                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1078                 {
1079                         hpt_unlock_vbus(vbus_ext);
1080                         os_printk("xpt_create_path failed");
1081                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1082                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
1083                         vbus_ext->sim = NULL;
1084                         return ;
1085                 }
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                 hpt_unlock_vbus(vbus_ext);
1094
1095                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1096                         int rid = 0;
1097                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1098                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1099                         {
1100                                 os_printk("can't allocate interrupt");
1101                                 return ;
1102                         }
1103
1104                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM | INTR_MPSAFE,
1105                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
1106                         {
1107                                 os_printk("can't set up interrupt");
1108                                 return ;
1109                         }
1110                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1111
1112                 }
1113
1114                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1115                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1116                 if (!vbus_ext->shutdown_eh)
1117                         os_printk("Shutdown event registration failed");
1118         }
1119
1120         ldm_for_each_vbus(vbus, vbus_ext) {
1121                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1122                 if (vbus_ext->tasks)
1123                         TASK_ENQUEUE(&vbus_ext->worker);
1124         }
1125
1126         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1127             S_IRUSR | S_IWUSR, "%s", driver_name);
1128 }
1129
1130 #if defined(KLD_MODULE)
1131
1132 typedef struct driverlink *driverlink_t;
1133 struct driverlink {
1134         kobj_class_t    driver;
1135         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1136 };
1137
1138 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1139
1140 struct devclass {
1141         TAILQ_ENTRY(devclass) link;
1142         devclass_t      parent;         /* parent in devclass hierarchy */
1143         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1144         char            *name;
1145         device_t        *devices;       /* array of devices indexed by unit */
1146         int             maxunit;        /* size of devices array */
1147 };
1148
1149 static void override_kernel_driver(void)
1150 {
1151         driverlink_t dl, dlfirst;
1152         driver_t *tmpdriver;
1153         devclass_t dc = devclass_find("pci");
1154
1155         if (dc){
1156                 dlfirst = TAILQ_FIRST(&dc->drivers);
1157                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1158                         if(strcmp(dl->driver->name, driver_name) == 0) {
1159                                 tmpdriver=dl->driver;
1160                                 dl->driver=dlfirst->driver;
1161                                 dlfirst->driver=tmpdriver;
1162                                 break;
1163                         }
1164                 }
1165         }
1166 }
1167
1168 #else
1169 #define override_kernel_driver()
1170 #endif
1171
1172 static void hpt_init(void *dummy)
1173 {
1174         if (bootverbose)
1175                 os_printk("%s %s", driver_name_long, driver_ver);
1176
1177         override_kernel_driver();
1178         init_config();
1179
1180         hpt_ich.ich_func = hpt_final_init;
1181         hpt_ich.ich_arg = NULL;
1182         if (config_intrhook_establish(&hpt_ich) != 0) {
1183                 printf("%s: cannot establish configuration hook\n",
1184                     driver_name_long);
1185         }
1186
1187 }
1188 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1189
1190 /*
1191  * CAM driver interface
1192  */
1193 static device_method_t driver_methods[] = {
1194         /* Device interface */
1195         DEVMETHOD(device_probe,         hpt_probe),
1196         DEVMETHOD(device_attach,        hpt_attach),
1197         DEVMETHOD(device_detach,        hpt_detach),
1198         DEVMETHOD(device_shutdown,      hpt_shutdown),
1199         { 0, 0 }
1200 };
1201
1202 static driver_t hpt_pci_driver = {
1203         driver_name,
1204         driver_methods,
1205         sizeof(HBA)
1206 };
1207
1208 static devclass_t       hpt_devclass;
1209
1210 #ifndef TARGETNAME
1211 #error "no TARGETNAME found"
1212 #endif
1213
1214 /* use this to make TARGETNAME be expanded */
1215 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1216 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1217 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1218 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1219 __MODULE_VERSION(TARGETNAME, 1);
1220 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1221
1222 static int hpt_open(struct cdev *dev, int flags, int devtype, struct thread *td)
1223 {
1224         return 0;
1225 }
1226
1227 static int hpt_close(struct cdev *dev, int flags, int devtype, struct thread *td)
1228 {
1229         return 0;
1230 }
1231
1232 static int hpt_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
1233 {
1234         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1235         IOCTL_ARG ioctl_args;
1236         HPT_U32 bytesReturned;
1237
1238         switch (cmd){
1239         case HPT_DO_IOCONTROL:
1240         {
1241                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1242                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1243                                 piop->dwIoControlCode,
1244                                 piop->lpInBuffer,
1245                                 piop->nInBufferSize,
1246                                 piop->lpOutBuffer,
1247                                 piop->nOutBufferSize));
1248
1249                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1250
1251                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1252                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1253                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1254                 ioctl_args.lpBytesReturned = &bytesReturned;
1255
1256                 if (ioctl_args.nInBufferSize) {
1257                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1258                         if (!ioctl_args.lpInBuffer)
1259                                 goto invalid;
1260                         if (copyin((void*)piop->lpInBuffer,
1261                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1262                                 goto invalid;
1263                 }
1264
1265                 if (ioctl_args.nOutBufferSize) {
1266                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1267                         if (!ioctl_args.lpOutBuffer)
1268                                 goto invalid;
1269                 }
1270
1271                 hpt_do_ioctl(&ioctl_args);
1272
1273                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1274                         if (piop->nOutBufferSize) {
1275                                 if (copyout(ioctl_args.lpOutBuffer,
1276                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1277                                         goto invalid;
1278                         }
1279                         if (piop->lpBytesReturned) {
1280                                 if (copyout(&bytesReturned,
1281                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1282                                         goto invalid;
1283                         }
1284                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1285                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1286                         return 0;
1287                 }
1288 invalid:
1289                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1290                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1291                 return EFAULT;
1292         }
1293         return EFAULT;
1294         }
1295
1296         case HPT_SCAN_BUS:
1297         {
1298                 return hpt_rescan_bus();
1299         }
1300         default:
1301                 KdPrint(("invalid command!"));
1302                 return EFAULT;
1303         }
1304
1305 }
1306
1307 static int      hpt_rescan_bus(void)
1308 {
1309         union ccb                       *ccb;
1310         PVBUS                           vbus;
1311         PVBUS_EXT                       vbus_ext;
1312
1313         ldm_for_each_vbus(vbus, vbus_ext) {
1314                 if ((ccb = xpt_alloc_ccb()) == NULL)
1315                 {
1316                         return(ENOMEM);
1317                 }
1318                 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(vbus_ext->sim),
1319                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1320                 {
1321                         xpt_free_ccb(ccb);
1322                         return(EIO);
1323                 }
1324                 xpt_rescan(ccb);
1325         }
1326         return(0);
1327 }
1328