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 int hpt_probe(device_t dev)
  43 {
  44         PCI_ID pci_id;
  45         HIM *him;
  46         int i;
  47         PHBA hba;
  48
  49         /* Some of supported chips are used not only by HPT. */
  50         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
  51                 return (ENXIO);
  52         for (him = him_list; him; him = him->next) {
  53                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  54                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  55                                 (pci_get_device(dev) == pci_id.did)){
  56                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  57                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  58                                 ));
  59                                 device_set_desc(dev, him->name);
  60                                 hba = (PHBA)device_get_softc(dev);
  61                                 memset(hba, 0, sizeof(HBA));
  62                                 hba->ext_type = EXT_TYPE_HBA;
  63                                 hba->ldm_adapter.him = him;
  64                                 return 0;
  65                         }
  66                 }
  67         }
  68
  69         return (ENXIO);
  70 }
  71
  72 static int hpt_attach(device_t dev)
  73 {
  74         PHBA hba = (PHBA)device_get_softc(dev);
  75         HIM *him = hba->ldm_adapter.him;
  76         PCI_ID pci_id;
  77         HPT_UINT size;
  78         PVBUS vbus;
  79         PVBUS_EXT vbus_ext;
  80
  81         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  82
  83 #if __FreeBSD_version >=440000
  84         pci_enable_busmaster(dev);
  85 #endif
  86
  87         pci_id.vid = pci_get_vendor(dev);
  88         pci_id.did = pci_get_device(dev);
  89         pci_id.rev = pci_get_revid(dev);
  90
  91         size = him->get_adapter_size(&pci_id);
  92         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
  93         if (!hba->ldm_adapter.him_handle)
  94                 return ENXIO;
  95
  96         hba->pcidev = dev;
  97         hba->pciaddr.tree = 0;
  98         hba->pciaddr.bus = pci_get_bus(dev);
  99         hba->pciaddr.device = pci_get_slot(dev);
 100         hba->pciaddr.function = pci_get_function(dev);
 101
 102         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 103                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 104                 return -1;
 105         }
 106
 107         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 108                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 109
 110         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 111                 size = ldm_get_vbus_size();
 112                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 113                 if (!vbus_ext) {
 114                         free(hba->ldm_adapter.him_handle, M_DEVBUF);
 115                         return -1;
 116                 }
 117                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 118                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 119                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 120                 ldm_register_adapter(&hba->ldm_adapter);
 121         }
 122
 123         ldm_for_each_vbus(vbus, vbus_ext) {
 124                 if (hba->ldm_adapter.vbus==vbus) {
 125                         hba->vbus_ext = vbus_ext;
 126                         hba->next = vbus_ext->hba_list;
 127                         vbus_ext->hba_list = hba;
 128                         break;
 129                 }
 130         }
 131         return 0;
 132 }
 133
 134 /*
 135  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 136  * but there are some problems currently (alignment, etc).
 137  */
 138 static __inline void *__get_free_pages(int order)
 139 {
 140         /* don't use low memory - other devices may get starved */
 141         return contigmalloc(PAGE_SIZE<<order,
 142                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 143 }
 144
 145 static __inline void free_pages(void *p, int order)
 146 {
 147         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 148 }
 149
 150 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 151 {
 152         PHBA hba;
 153         struct freelist *f;
 154         HPT_UINT i;
 155         void **p;
 156
 157         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 158                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 159
 160         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 161
 162         for (f=vbus_ext->freelist_head; f; f=f->next) {
 163                 KdPrint(("%s: %d*%d=%d bytes",
 164                         f->tag, f->count, f->size, f->count*f->size));
 165                 for (i=0; i<f->count; i++) {
 166                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
 167                         if (!p) return (ENXIO);
 168                         *p = f->head;
 169                         f->head = p;
 170                 }
 171         }
 172
 173         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 174                 int order, size, j;
 175
 176                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 177
 178                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 179                         ;
 180
 181                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 182                         f->tag, f->count, f->size, f->count*f->size, order));
 183                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 184
 185                 for (i=0; i<f->count;) {
 186                         p = (void **)__get_free_pages(order);
 187                         if (!p) return -1;
 188                         for (j = size/f->size; j && i<f->count; i++,j--) {
 189                                 *p = f->head;
 190                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 191                                 f->head = p;
 192                                 p = (void **)((unsigned long)p + f->size);
 193                         }
 194                 }
 195         }
 196
 197         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 198
 199         for (i=0; i<os_max_cache_pages; i++) {
 200                 p = (void **)__get_free_pages(0);
 201                 if (!p) return -1;
 202                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 203                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 204         }
 205
 206         return 0;
 207 }
 208
 209 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 210 {
 211         struct freelist *f;
 212         void *p;
 213         int i;
 214         BUS_ADDRESS bus;
 215
 216         for (f=vbus_ext->freelist_head; f; f=f->next) {
 217 #if DBG
 218                 if (f->count!=f->reserved_count) {
 219                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 220                 }
 221 #endif
 222                 while ((p=freelist_get(f)))
 223                         free(p, M_DEVBUF);
 224         }
 225
 226         for (i=0; i<os_max_cache_pages; i++) {
 227                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 228                 HPT_ASSERT(p);
 229                 free_pages(p, 0);
 230         }
 231
 232         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 233                 int order, size;
 234 #if DBG
 235                 if (f->count!=f->reserved_count) {
 236                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 237                 }
 238 #endif
 239                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 240
 241                 while ((p=freelist_get_dma(f, &bus))) {
 242                         if (order)
 243                                 free_pages(p, order);
 244                         else {
 245                         /* can't free immediately since other blocks in this page may still be in the list */
 246                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 247                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 248                         }
 249                 }
 250         }
 251
 252         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 253                 free_pages(p, 0);
 254 }
 255
 256 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 257 {
 258         PHBA hba;
 259
 260         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 261                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 262                         KdPrint(("fail to initialize %p", hba));
 263                         return -1;
 264                 }
 265
 266         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 267         return 0;
 268 }
 269
 270 static void hpt_flush_done(PCOMMAND pCmd)
 271 {
 272         PVDEV vd = pCmd->target;
 273
 274         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 275                 vd = vd->u.array.transform->target;
 276                 HPT_ASSERT(vd);
 277                 pCmd->target = vd;
 278                 pCmd->Result = RETURN_PENDING;
 279                 vdev_queue_cmd(pCmd);
 280                 return;
 281         }
 282
 283         *(int *)pCmd->priv = 1;
 284         wakeup(pCmd);
 285 }
 286
 287 /*
 288  * flush a vdev (without retry).
 289  */
 290 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 291 {
 292         PCOMMAND pCmd;
 293         int result = 0, done;
 294         HPT_UINT count;
 295
 296         KdPrint(("flusing dev %p", vd));
 297
 298         hpt_lock_vbus(vbus_ext);
 299
 300         if (mIsArray(vd->type) && vd->u.array.transform)
 301                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 302                                         vd->u.array.transform->target->cmds_per_request);
 303         else
 304                 count = vd->cmds_per_request;
 305
 306         pCmd = ldm_alloc_cmds(vd->vbus, count);
 307
 308         if (!pCmd) {
 309                 hpt_unlock_vbus(vbus_ext);
 310                 return -1;
 311         }
 312
 313         pCmd->type = CMD_TYPE_FLUSH;
 314         pCmd->flags.hard_flush = 1;
 315         pCmd->target = vd;
 316         pCmd->done = hpt_flush_done;
 317         done = 0;
 318         pCmd->priv = &done;
 319
 320         ldm_queue_cmd(pCmd);
 321
 322         if (!done) {
 323                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
 324                         ldm_reset_vbus(vd->vbus);
 325                 }
 326         }
 327
 328         KdPrint(("flush result %d", pCmd->Result));
 329
 330         if (pCmd->Result!=RETURN_SUCCESS)
 331                 result = -1;
 332
 333         ldm_free_cmds(pCmd);
 334
 335         hpt_unlock_vbus(vbus_ext);
 336
 337         return result;
 338 }
 339
 340 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 341 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 342 {
 343         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 344         PHBA hba;
 345         int i;
 346
 347         KdPrint(("hpt_shutdown_vbus"));
 348
 349         /* stop all ctl tasks and disable the worker taskqueue */
 350         hpt_stop_tasks(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         hpt_lock_vbus(vbus_ext);
 364         ldm_shutdown(vbus);
 365         hpt_unlock_vbus(vbus_ext);
 366
 367         ldm_release_vbus(vbus);
 368
 369         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 370                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 371
 372         hpt_free_mem(vbus_ext);
 373
 374         while ((hba=vbus_ext->hba_list)) {
 375                 vbus_ext->hba_list = hba->next;
 376                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 377         }
 378
 379         free(vbus_ext, M_DEVBUF);
 380         KdPrint(("hpt_shutdown_vbus done"));
 381 }
 382
 383 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 384 {
 385         OSM_TASK *tasks;
 386
 387         tasks = vbus_ext->tasks;
 388         vbus_ext->tasks = 0;
 389
 390         while (tasks) {
 391                 OSM_TASK *t = tasks;
 392                 tasks = t->next;
 393                 t->next = 0;
 394                 t->func(vbus_ext->vbus, t->data);
 395         }
 396 }
 397
 398 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 399 {
 400         if(vbus_ext){
 401                 hpt_lock_vbus(vbus_ext);
 402                 __hpt_do_tasks(vbus_ext);
 403                 hpt_unlock_vbus(vbus_ext);
 404         }
 405 }
 406
 407 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 408 static void hpt_poll(struct cam_sim *sim);
 409 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 410 static void hpt_pci_intr(void *arg);
 411
 412 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 413 {
 414         POS_CMDEXT p = vbus_ext->cmdext_list;
 415         if (p)
 416                 vbus_ext->cmdext_list = p->next;
 417         return p;
 418 }
 419
 420 static __inline void cmdext_put(POS_CMDEXT p)
 421 {
 422         p->next = p->vbus_ext->cmdext_list;
 423         p->vbus_ext->cmdext_list = p;
 424 }
 425
 426 static void hpt_timeout(void *arg)
 427 {
 428         PCOMMAND pCmd = (PCOMMAND)arg;
 429         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 430
 431         KdPrint(("pCmd %p timeout", pCmd));
 432
 433         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 434 }
 435
 436 static void os_cmddone(PCOMMAND pCmd)
 437 {
 438         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 439         union ccb *ccb = ext->ccb;
 440
 441         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 442
 443         untimeout(hpt_timeout, pCmd, ext->timeout_ch);
 444
 445         switch(pCmd->Result) {
 446         case RETURN_SUCCESS:
 447                 ccb->ccb_h.status = CAM_REQ_CMP;
 448                 break;
 449         case RETURN_BAD_DEVICE:
 450                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 451                 break;
 452         case RETURN_DEVICE_BUSY:
 453                 ccb->ccb_h.status = CAM_BUSY;
 454                 break;
 455         case RETURN_INVALID_REQUEST:
 456                 ccb->ccb_h.status = CAM_REQ_INVALID;
 457                 break;
 458         case RETURN_SELECTION_TIMEOUT:
 459                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 460                 break;
 461         case RETURN_RETRY:
 462                 ccb->ccb_h.status = CAM_BUSY;
 463                 break;
 464         default:
 465                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 466                 break;
 467         }
 468
 469         if (pCmd->flags.data_in) {
 470                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 471         }
 472         else if (pCmd->flags.data_out) {
 473                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 474         }
 475
 476         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 477
 478         cmdext_put(ext);
 479         ldm_free_cmds(pCmd);
 480         xpt_done(ccb);
 481 }
 482
 483 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 484 {
 485
 486         /* since we have provided physical sg, nobody will ask us to build physical sg */
 487         HPT_ASSERT(0);
 488         return FALSE;
 489 }
 490
 491 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 492 {
 493         PCOMMAND pCmd = (PCOMMAND)arg;
 494         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 495         PSG psg = pCmd->psg;
 496         int idx;
 497
 498         HPT_ASSERT(pCmd->flags.physical_sg);
 499
 500         if (error)
 501                 panic("busdma error");
 502
 503         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 504
 505         if (nsegs != 0) {
 506                 for (idx = 0; idx < nsegs; idx++, psg++) {
 507                         psg->addr.bus = segs[idx].ds_addr;
 508                         psg->size = segs[idx].ds_len;
 509                         psg->eot = 0;
 510                 }
 511                         psg[-1].eot = 1;
 512
 513                 if (pCmd->flags.data_in) {
 514                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 515                             BUS_DMASYNC_PREREAD);
 516                 }
 517                 else if (pCmd->flags.data_out) {
 518                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 519                             BUS_DMASYNC_PREWRITE);
 520                 }
 521         }
 522         ext->timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
 523         ldm_queue_cmd(pCmd);
 524 }
 525
 526 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 527 {
 528         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 529         PVDEV vd;
 530         PCOMMAND pCmd;
 531         POS_CMDEXT ext;
 532         HPT_U8 *cdb;
 533
 534         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 535                 cdb = ccb->csio.cdb_io.cdb_ptr;
 536         else
 537                 cdb = ccb->csio.cdb_io.cdb_bytes;
 538
 539         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 540                 ccb,
 541                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 542                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 543         ));
 544
 545         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 546         if (ccb->ccb_h.target_lun != 0 ||
 547                 ccb->ccb_h.target_id >= osm_max_targets ||
 548                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 549         {
 550                 ccb->ccb_h.status = CAM_TID_INVALID;
 551                 xpt_done(ccb);
 552                 return;
 553         }
 554
 555         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 556
 557         if (!vd) {
 558                 ccb->ccb_h.status = CAM_TID_INVALID;
 559                 xpt_done(ccb);
 560                 return;
 561         }
 562
 563         switch (cdb[0]) {
 564         case TEST_UNIT_READY:
 565         case START_STOP_UNIT:
 566         case SYNCHRONIZE_CACHE:
 567                 ccb->ccb_h.status = CAM_REQ_CMP;
 568                 break;
 569
 570         case INQUIRY:
 571                 {
 572                         PINQUIRYDATA inquiryData;
 573                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 574                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 575
 576                         inquiryData->AdditionalLength = 31;
 577                         inquiryData->CommandQueue = 1;
 578                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 579                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 580
 581                         if (vd->target_id / 10) {
 582                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 583                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 584                         }
 585                         else
 586                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 587
 588                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 589
 590                         ccb->ccb_h.status = CAM_REQ_CMP;
 591                 }
 592                 break;
 593
 594         case READ_CAPACITY:
 595         {
 596                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 597                 HPT_U32 cap;
 598
 599                 if (vd->capacity>0xfffffffful)
 600                         cap = 0xfffffffful;
 601                 else
 602                         cap = vd->capacity - 1;
 603
 604                 rbuf[0] = (HPT_U8)(cap>>24);
 605                 rbuf[1] = (HPT_U8)(cap>>16);
 606                 rbuf[2] = (HPT_U8)(cap>>8);
 607                 rbuf[3] = (HPT_U8)cap;
 608                 rbuf[4] = 0;
 609                 rbuf[5] = 0;
 610                 rbuf[6] = 2;
 611                 rbuf[7] = 0;
 612
 613                 ccb->ccb_h.status = CAM_REQ_CMP;
 614                 break;
 615         }
 616
 617         case SERVICE_ACTION_IN:
 618         {
 619                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 620                 HPT_U64 cap = vd->capacity - 1;
 621
 622                 rbuf[0] = (HPT_U8)(cap>>56);
 623                 rbuf[1] = (HPT_U8)(cap>>48);
 624                 rbuf[2] = (HPT_U8)(cap>>40);
 625                 rbuf[3] = (HPT_U8)(cap>>32);
 626                 rbuf[4] = (HPT_U8)(cap>>24);
 627                 rbuf[5] = (HPT_U8)(cap>>16);
 628                 rbuf[6] = (HPT_U8)(cap>>8);
 629                 rbuf[7] = (HPT_U8)cap;
 630                 rbuf[8] = 0;
 631                 rbuf[9] = 0;
 632                 rbuf[10] = 2;
 633                 rbuf[11] = 0;
 634
 635                 ccb->ccb_h.status = CAM_REQ_CMP;
 636                 break;
 637         }
 638
 639         case READ_6:
 640         case READ_10:
 641         case READ_16:
 642         case WRITE_6:
 643         case WRITE_10:
 644         case WRITE_16:
 645         case 0x13:
 646         case 0x2f:
 647         {
 648                 int error;
 649
 650                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 651                 if(!pCmd){
 652                         KdPrint(("Failed to allocate command!"));
 653                         ccb->ccb_h.status = CAM_BUSY;
 654                         break;
 655                 }
 656
 657                 switch (cdb[0]) {
 658                 case READ_6:
 659                 case WRITE_6:
 660                 case 0x13:
 661                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 662                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 663                         break;
 664                 case READ_16:
 665                 case WRITE_16:
 666                 {
 667                         HPT_U64 block =
 668                                 ((HPT_U64)cdb[2]<<56) |
 669                                 ((HPT_U64)cdb[3]<<48) |
 670                                 ((HPT_U64)cdb[4]<<40) |
 671                                 ((HPT_U64)cdb[5]<<32) |
 672                                 ((HPT_U64)cdb[6]<<24) |
 673                                 ((HPT_U64)cdb[7]<<16) |
 674                                 ((HPT_U64)cdb[8]<<8) |
 675                                 ((HPT_U64)cdb[9]);
 676                         pCmd->uCmd.Ide.Lba = block;
 677                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 678                         break;
 679                 }
 680
 681                 default:
 682                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 683                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 684                         break;
 685                 }
 686
 687                 switch (cdb[0]) {
 688                 case READ_6:
 689                 case READ_10:
 690                 case READ_16:
 691                         pCmd->flags.data_in = 1;
 692                         break;
 693                 case WRITE_6:
 694                 case WRITE_10:
 695                 case WRITE_16:
 696                         pCmd->flags.data_out = 1;
 697                         break;
 698                 }
 699                 pCmd->priv = ext = cmdext_get(vbus_ext);
 700                 HPT_ASSERT(ext);
 701                 ext->ccb = ccb;
 702                 pCmd->target = vd;
 703                 pCmd->done = os_cmddone;
 704                 pCmd->buildsgl = os_buildsgl;
 705                 pCmd->psg = ext->psg;
 706                 pCmd->flags.physical_sg = 1;
 707                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 708                                         ext->dma_map,
 709                                         ccb,
 710                                         hpt_io_dmamap_callback, pCmd,
 711                                         BUS_DMA_WAITOK
 712                                         );
 713                 KdPrint(("bus_dmamap_load return %d", error));
 714                 if (error && error!=EINPROGRESS) {
 715                         os_printk("bus_dmamap_load error %d", error);
 716                         cmdext_put(ext);
 717                         ldm_free_cmds(pCmd);
 718                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 719                         xpt_done(ccb);
 720                 }
 721                 return;
 722         }
 723
 724         default:
 725                 ccb->ccb_h.status = CAM_REQ_INVALID;
 726                 break;
 727         }
 728
 729         xpt_done(ccb);
 730         return;
 731 }
 732
 733 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 734 {
 735         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 736
 737         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 738
 739         switch (ccb->ccb_h.func_code) {
 740
 741         case XPT_SCSI_IO:
 742                 hpt_lock_vbus(vbus_ext);
 743                 hpt_scsi_io(vbus_ext, ccb);
 744                 hpt_unlock_vbus(vbus_ext);
 745                 return;
 746
 747         case XPT_RESET_BUS:
 748                 hpt_lock_vbus(vbus_ext);
 749                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 750                 hpt_unlock_vbus(vbus_ext);
 751                 break;
 752
 753         case XPT_GET_TRAN_SETTINGS:
 754         case XPT_SET_TRAN_SETTINGS:
 755                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 756                 break;
 757
 758         case XPT_CALC_GEOMETRY:
 759 #if __FreeBSD_version >= 500000
 760                 cam_calc_geometry(&ccb->ccg, 1);
 761 #else
 762                 ccb->ccg.heads = 255;
 763                 ccb->ccg.secs_per_track = 63;
 764                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 765                 ccb->ccb_h.status = CAM_REQ_CMP;
 766 #endif
 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         hpt_pci_intr(cam_sim_softc(sim));
 816 }
 817
 818 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 819 {
 820         KdPrint(("hpt_async"));
 821 }
 822
 823 static int hpt_shutdown(device_t dev)
 824 {
 825         KdPrint(("hpt_shutdown(dev=%p)", dev));
 826         return 0;
 827 }
 828
 829 static int hpt_detach(device_t dev)
 830 {
 831         /* we don't allow the driver to be unloaded. */
 832         return EBUSY;
 833 }
 834
 835 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 836 {
 837         arg->ioctl_cmnd = 0;
 838         wakeup(arg);
 839 }
 840
 841 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 842 {
 843         ioctl_args->result = -1;
 844         ioctl_args->done = hpt_ioctl_done;
 845         ioctl_args->ioctl_cmnd = (void *)1;
 846
 847         hpt_lock_vbus(vbus_ext);
 848         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 849
 850         while (ioctl_args->ioctl_cmnd) {
 851                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
 852                         break;
 853                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 854                 __hpt_do_tasks(vbus_ext);
 855         }
 856
 857         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 858
 859         hpt_unlock_vbus(vbus_ext);
 860 }
 861
 862 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 863 {
 864         PVBUS vbus;
 865         PVBUS_EXT vbus_ext;
 866
 867         ldm_for_each_vbus(vbus, vbus_ext) {
 868                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 869                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 870                         return;
 871         }
 872 }
 873
 874 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 875         IOCTL_ARG arg;\
 876         arg.dwIoControlCode = code;\
 877         arg.lpInBuffer = inbuf;\
 878         arg.lpOutBuffer = outbuf;\
 879         arg.nInBufferSize = insize;\
 880         arg.nOutBufferSize = outsize;\
 881         arg.lpBytesReturned = 0;\
 882         hpt_do_ioctl(&arg);\
 883         arg.result;\
 884 })
 885
 886 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 887
 888 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 889 {
 890         int i;
 891         HPT_U32 count = nMaxCount-1;
 892
 893         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 894                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 895                 return -1;
 896
 897         nMaxCount = (int)pIds[0];
 898         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 899         return nMaxCount;
 900 }
 901
 902 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 903 {
 904         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 905                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 906 }
 907
 908 /* not belong to this file logically, but we want to use ioctl interface */
 909 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 910 {
 911         LOGICAL_DEVICE_INFO_V3 devinfo;
 912         int i, result;
 913         DEVICEID param[2] = { id, 0 };
 914
 915         if (hpt_get_device_info_v3(id, &devinfo))
 916                 return -1;
 917
 918         if (devinfo.Type!=LDT_ARRAY)
 919                 return -1;
 920
 921         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 922                 param[1] = AS_REBUILD_ABORT;
 923         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 924                 param[1] = AS_VERIFY_ABORT;
 925         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 926                 param[1] = AS_INITIALIZE_ABORT;
 927         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 928                 param[1] = AS_TRANSFORM_ABORT;
 929         else
 930                 return -1;
 931
 932         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 933         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 934                                 param, sizeof(param), 0, 0);
 935
 936         for (i=0; i<devinfo.u.array.nDisk; i++)
 937                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 938                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 939
 940         return result;
 941 }
 942
 943 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 944 {
 945         DEVICEID ids[32];
 946         int i, count;
 947
 948         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 949
 950         for (i=0; i<count; i++)
 951                 __hpt_stop_tasks(vbus_ext, ids[i]);
 952 }
 953
 954 static  d_open_t        hpt_open;
 955 static  d_close_t       hpt_close;
 956 static  d_ioctl_t       hpt_ioctl;
 957 static  int             hpt_rescan_bus(void);
 958
 959 static struct cdevsw hpt_cdevsw = {
 960         .d_open =       hpt_open,
 961         .d_close =      hpt_close,
 962         .d_ioctl =      hpt_ioctl,
 963         .d_name =       driver_name,
 964 #if __FreeBSD_version>=503000
 965         .d_version =    D_VERSION,
 966 #endif
 967 #if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
 968         .d_flags =      D_NEEDGIANT,
 969 #endif
 970 #if __FreeBSD_version<600034
 971 #if __FreeBSD_version>501000
 972         .d_maj =        MAJOR_AUTO,
 973 #else
 974         .d_maj = HPT_DEV_MAJOR,
 975 #endif
 976 #endif
 977 };
 978
 979 static struct intr_config_hook hpt_ich;
 980
 981 /*
 982  * hpt_final_init will be called after all hpt_attach.
 983  */
 984 static void hpt_final_init(void *dummy)
 985 {
 986         int       i;
 987         PVBUS_EXT vbus_ext;
 988         PVBUS vbus;
 989         PHBA hba;
 990
 991         /* Clear the config hook */
 992         config_intrhook_disestablish(&hpt_ich);
 993
 994         /* allocate memory */
 995         i = 0;
 996         ldm_for_each_vbus(vbus, vbus_ext) {
 997                 if (hpt_alloc_mem(vbus_ext)) {
 998                         os_printk("out of memory");
 999                         return;
1000                 }
1001                 i++;
1002         }
1003
1004         if (!i) {
1005                 if (bootverbose)
1006                         os_printk("no controller detected.");
1007                 return;
1008         }
1009
1010         /* initializing hardware */
1011         ldm_for_each_vbus(vbus, vbus_ext) {
1012                 /* make timer available here */
1013                 callout_handle_init(&vbus_ext->timer);
1014                 if (hpt_init_vbus(vbus_ext)) {
1015                         os_printk("fail to initialize hardware");
1016                         break; /* FIXME */
1017                 }
1018         }
1019
1020         /* register CAM interface */
1021         ldm_for_each_vbus(vbus, vbus_ext) {
1022                 struct cam_devq *devq;
1023                 struct ccb_setasync     ccb;
1024
1025 #if (__FreeBSD_version >= 500000)
1026                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
1027 #endif
1028                 if (bus_dma_tag_create(NULL,/* parent */
1029                                 4,      /* alignment */
1030                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1031                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1032                                 BUS_SPACE_MAXADDR,      /* highaddr */
1033                                 NULL, NULL,             /* filter, filterarg */
1034                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1035                                 os_max_sg_descriptors,  /* nsegments */
1036                                 0x10000,        /* maxsegsize */
1037                                 BUS_DMA_WAITOK,         /* flags */
1038 #if __FreeBSD_version>502000
1039                                 busdma_lock_mutex,      /* lockfunc */
1040                                 &vbus_ext->lock,                /* lockfuncarg */
1041 #endif
1042                                 &vbus_ext->io_dmat      /* tag */))
1043                 {
1044                         return ;
1045                 }
1046
1047                 for (i=0; i<os_max_queue_comm; i++) {
1048                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1049                         if (!ext) {
1050                                 os_printk("Can't alloc cmdext(%d)", i);
1051                                 return ;
1052                         }
1053                         ext->vbus_ext = vbus_ext;
1054                         ext->next = vbus_ext->cmdext_list;
1055                         vbus_ext->cmdext_list = ext;
1056
1057                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1058                                 os_printk("Can't create dma map(%d)", i);
1059                                 return ;
1060                         }
1061                         callout_handle_init(&ext->timeout_ch);
1062                 }
1063
1064                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1065                         os_printk("cam_simq_alloc failed");
1066                         return ;
1067                 }
1068
1069 #if __FreeBSD_version > 700025
1070                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1071                                 vbus_ext, 0, &Giant, os_max_queue_comm, /*tagged*/8,  devq);
1072 #else
1073                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1074                                 vbus_ext, 0, os_max_queue_comm, /*tagged*/8,  devq);
1075 #endif
1076
1077                 if (!vbus_ext->sim) {
1078                         os_printk("cam_sim_alloc failed");
1079                         cam_simq_free(devq);
1080                         return ;
1081                 }
1082
1083 #if __FreeBSD_version > 700044
1084                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
1085 #else
1086                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1087 #endif
1088                         os_printk("xpt_bus_register failed");
1089                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
1090                         vbus_ext->sim = NULL;
1091                         return ;
1092                 }
1093
1094                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1095                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1096                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1097                 {
1098                         os_printk("xpt_create_path failed");
1099                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1100                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
1101                         vbus_ext->sim = NULL;
1102                         return ;
1103                 }
1104
1105                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1106                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1107                 ccb.event_enable = AC_LOST_DEVICE;
1108                 ccb.callback = hpt_async;
1109                 ccb.callback_arg = vbus_ext;
1110                 xpt_action((union ccb *)&ccb);
1111
1112                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1113                         int rid = 0;
1114                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1115                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1116                         {
1117                                 os_printk("can't allocate interrupt");
1118                                 return ;
1119                         }
1120
1121                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
1122 #if __FreeBSD_version > 700025
1123                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
1124 #else
1125                                 hpt_pci_intr, vbus_ext, &hba->irq_handle))
1126 #endif
1127                         {
1128                                 os_printk("can't set up interrupt");
1129                                 return ;
1130                         }
1131                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1132                 }
1133
1134                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1135                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1136                 if (!vbus_ext->shutdown_eh)
1137                         os_printk("Shutdown event registration failed");
1138         }
1139
1140         ldm_for_each_vbus(vbus, vbus_ext) {
1141                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1142                 if (vbus_ext->tasks)
1143                         TASK_ENQUEUE(&vbus_ext->worker);
1144         }
1145
1146         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1147             S_IRUSR | S_IWUSR, "%s", driver_name);
1148 }
1149
1150 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
1151
1152 typedef struct driverlink *driverlink_t;
1153 struct driverlink {
1154         kobj_class_t    driver;
1155         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1156 };
1157
1158 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1159
1160 struct devclass {
1161         TAILQ_ENTRY(devclass) link;
1162         devclass_t      parent;         /* parent in devclass hierarchy */
1163         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1164         char            *name;
1165         device_t        *devices;       /* array of devices indexed by unit */
1166         int             maxunit;        /* size of devices array */
1167 };
1168
1169 static void override_kernel_driver(void)
1170 {
1171         driverlink_t dl, dlfirst;
1172         driver_t *tmpdriver;
1173         devclass_t dc = devclass_find("pci");
1174
1175         if (dc){
1176                 dlfirst = TAILQ_FIRST(&dc->drivers);
1177                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1178                         if(strcmp(dl->driver->name, driver_name) == 0) {
1179                                 tmpdriver=dl->driver;
1180                                 dl->driver=dlfirst->driver;
1181                                 dlfirst->driver=tmpdriver;
1182                                 break;
1183                         }
1184                 }
1185         }
1186 }
1187
1188 #else
1189 #define override_kernel_driver()
1190 #endif
1191
1192 static void hpt_init(void *dummy)
1193 {
1194         if (bootverbose)
1195                 os_printk("%s %s", driver_name_long, driver_ver);
1196
1197         override_kernel_driver();
1198         init_config();
1199
1200         hpt_ich.ich_func = hpt_final_init;
1201         hpt_ich.ich_arg = NULL;
1202         if (config_intrhook_establish(&hpt_ich) != 0) {
1203                 printf("%s: cannot establish configuration hook\n",
1204                     driver_name_long);
1205         }
1206
1207 }
1208 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1209
1210 /*
1211  * CAM driver interface
1212  */
1213 static device_method_t driver_methods[] = {
1214         /* Device interface */
1215         DEVMETHOD(device_probe,         hpt_probe),
1216         DEVMETHOD(device_attach,        hpt_attach),
1217         DEVMETHOD(device_detach,        hpt_detach),
1218         DEVMETHOD(device_shutdown,      hpt_shutdown),
1219         DEVMETHOD_END
1220 };
1221
1222 static driver_t hpt_pci_driver = {
1223         driver_name,
1224         driver_methods,
1225         sizeof(HBA)
1226 };
1227
1228 static devclass_t       hpt_devclass;
1229
1230 #ifndef TARGETNAME
1231 #error "no TARGETNAME found"
1232 #endif
1233
1234 /* use this to make TARGETNAME be expanded */
1235 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1236 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1237 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1238 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1239 __MODULE_VERSION(TARGETNAME, 1);
1240 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1241
1242 #if __FreeBSD_version>503000
1243 typedef struct cdev * ioctl_dev_t;
1244 #else
1245 typedef dev_t ioctl_dev_t;
1246 #endif
1247
1248 #if __FreeBSD_version >= 500000
1249 typedef struct thread * ioctl_thread_t;
1250 #else
1251 typedef struct proc *   ioctl_thread_t;
1252 #endif
1253
1254 static int hpt_open(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
1255 {
1256         return 0;
1257 }
1258
1259 static int hpt_close(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
1260 {
1261         return 0;
1262 }
1263
1264 static int hpt_ioctl(ioctl_dev_t dev, u_long cmd, caddr_t data, int fflag, ioctl_thread_t td)
1265 {
1266         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1267         IOCTL_ARG ioctl_args;
1268         HPT_U32 bytesReturned;
1269
1270         switch (cmd){
1271         case HPT_DO_IOCONTROL:
1272         {
1273                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1274                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1275                                 piop->dwIoControlCode,
1276                                 piop->lpInBuffer,
1277                                 piop->nInBufferSize,
1278                                 piop->lpOutBuffer,
1279                                 piop->nOutBufferSize));
1280
1281                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1282
1283                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1284                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1285                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1286                 ioctl_args.lpBytesReturned = &bytesReturned;
1287
1288                 if (ioctl_args.nInBufferSize) {
1289                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1290                         if (!ioctl_args.lpInBuffer)
1291                                 goto invalid;
1292                         if (copyin((void*)piop->lpInBuffer,
1293                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1294                                 goto invalid;
1295                 }
1296
1297                 if (ioctl_args.nOutBufferSize) {
1298                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1299                         if (!ioctl_args.lpOutBuffer)
1300                                 goto invalid;
1301                 }
1302
1303 #if (__FreeBSD_version >= 500000)
1304                 mtx_lock(&Giant);
1305 #endif
1306
1307                 hpt_do_ioctl(&ioctl_args);
1308
1309 #if (__FreeBSD_version >= 500000)
1310                 mtx_unlock(&Giant);
1311 #endif
1312
1313                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1314                         if (piop->nOutBufferSize) {
1315                                 if (copyout(ioctl_args.lpOutBuffer,
1316                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1317                                         goto invalid;
1318                         }
1319                         if (piop->lpBytesReturned) {
1320                                 if (copyout(&bytesReturned,
1321                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1322                                         goto invalid;
1323                         }
1324                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1325                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1326                         return 0;
1327                 }
1328 invalid:
1329                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1330                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1331                 return EFAULT;
1332         }
1333         return EFAULT;
1334         }
1335
1336         case HPT_SCAN_BUS:
1337         {
1338                 return hpt_rescan_bus();
1339         }
1340         default:
1341                 KdPrint(("invalid command!"));
1342                 return EFAULT;
1343         }
1344
1345 }
1346
1347 static int      hpt_rescan_bus(void)
1348 {
1349         union ccb                       *ccb;
1350         PVBUS                           vbus;
1351         PVBUS_EXT                       vbus_ext;
1352
1353 #if (__FreeBSD_version >= 500000)
1354         mtx_lock(&Giant);
1355 #endif
1356
1357         ldm_for_each_vbus(vbus, vbus_ext) {
1358                 if ((ccb = xpt_alloc_ccb()) == NULL)
1359                         return(ENOMEM);
1360                 if (xpt_create_path(&ccb->ccb_h.path, NULL,
1361                     cam_sim_path(vbus_ext->sim),
1362                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1363                         xpt_free_ccb(ccb);
1364                         return(EIO);
1365                 }
1366                 xpt_rescan(ccb);
1367         }
1368
1369 #if (__FreeBSD_version >= 500000)
1370         mtx_unlock(&Giant);
1371 #endif
1372
1373         return(0);
1374 }