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 int hpt_probe(device_t dev)
  35 {
  36         PCI_ID pci_id;
  37         HIM *him;
  38         int i;
  39         PHBA hba;
  40
  41         for (him = him_list; him; him = him->next) {
  42                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  43                         if (him->get_controller_count)
  44                                 him->get_controller_count(&pci_id,0,0);
  45                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  46                                 (pci_get_device(dev) == pci_id.did)){
  47                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  48                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  49                                 ));
  50                                 device_set_desc(dev, him->name);
  51                                 hba = (PHBA)device_get_softc(dev);
  52                                 memset(hba, 0, sizeof(HBA));
  53                                 hba->ext_type = EXT_TYPE_HBA;
  54                                 hba->ldm_adapter.him = him;
  55                                 return (BUS_PROBE_DEFAULT);
  56                         }
  57                 }
  58         }
  59
  60         return (ENXIO);
  61 }
  62
  63 static int hpt_attach(device_t dev)
  64 {
  65         PHBA hba = (PHBA)device_get_softc(dev);
  66         HIM *him = hba->ldm_adapter.him;
  67         PCI_ID pci_id;
  68         HPT_UINT size;
  69         PVBUS vbus;
  70         PVBUS_EXT vbus_ext;
  71
  72         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  73
  74 #if __FreeBSD_version >=440000
  75         pci_enable_busmaster(dev);
  76 #endif
  77
  78         pci_id.vid = pci_get_vendor(dev);
  79         pci_id.did = pci_get_device(dev);
  80         pci_id.rev = pci_get_revid(dev);
  81         pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
  82
  83         size = him->get_adapter_size(&pci_id);
  84         hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
  85         if (!hba->ldm_adapter.him_handle)
  86                 return ENXIO;
  87
  88         hba->pcidev = dev;
  89         hba->pciaddr.tree = 0;
  90         hba->pciaddr.bus = pci_get_bus(dev);
  91         hba->pciaddr.device = pci_get_slot(dev);
  92         hba->pciaddr.function = pci_get_function(dev);
  93
  94         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
  95                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
  96                 return -1;
  97         }
  98
  99         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 100                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 101
 102         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 103                 size = ldm_get_vbus_size();
 104                 vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 105                 if (!vbus_ext) {
 106                         free(hba->ldm_adapter.him_handle, M_DEVBUF);
 107                         return -1;
 108                 }
 109                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 110                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 111                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 112                 ldm_register_adapter(&hba->ldm_adapter);
 113         }
 114
 115         ldm_for_each_vbus(vbus, vbus_ext) {
 116                 if (hba->ldm_adapter.vbus==vbus) {
 117                         hba->vbus_ext = vbus_ext;
 118                         hba->next = vbus_ext->hba_list;
 119                         vbus_ext->hba_list = hba;
 120                         break;
 121                 }
 122         }
 123         return 0;
 124 }
 125
 126 /*
 127  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 128  * but there are some problems currently (alignment, etc).
 129  */
 130 static __inline void *__get_free_pages(int order)
 131 {
 132         /* don't use low memory - other devices may get starved */
 133         return contigmalloc(PAGE_SIZE<<order,
 134                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 135 }
 136
 137 static __inline void free_pages(void *p, int order)
 138 {
 139         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 140 }
 141
 142 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 143 {
 144         PHBA hba;
 145         struct freelist *f;
 146         HPT_UINT i;
 147         void **p;
 148
 149         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 150                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 151
 152         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 153
 154         for (f=vbus_ext->freelist_head; f; f=f->next) {
 155                 KdPrint(("%s: %d*%d=%d bytes",
 156                         f->tag, f->count, f->size, f->count*f->size));
 157                 for (i=0; i<f->count; i++) {
 158                         p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
 159                         if (!p) return (ENXIO);
 160                         *p = f->head;
 161                         f->head = p;
 162                 }
 163         }
 164
 165         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 166                 int order, size, j;
 167
 168                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 169
 170                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 171                         ;
 172
 173                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 174                         f->tag, f->count, f->size, f->count*f->size, order));
 175                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 176
 177                 for (i=0; i<f->count;) {
 178                         p = (void **)__get_free_pages(order);
 179                         if (!p) return -1;
 180                         for (j = size/f->size; j && i<f->count; i++,j--) {
 181                                 *p = f->head;
 182                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 183                                 f->head = p;
 184                                 p = (void **)((unsigned long)p + f->size);
 185                         }
 186                 }
 187         }
 188
 189         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 190
 191         for (i=0; i<os_max_cache_pages; i++) {
 192                 p = (void **)__get_free_pages(0);
 193                 if (!p) return -1;
 194                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 195                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 196         }
 197
 198         return 0;
 199 }
 200
 201 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 202 {
 203         struct freelist *f;
 204         void *p;
 205         int i;
 206         BUS_ADDRESS bus;
 207
 208         for (f=vbus_ext->freelist_head; f; f=f->next) {
 209 #if DBG
 210                 if (f->count!=f->reserved_count) {
 211                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 212                 }
 213 #endif
 214                 while ((p=freelist_get(f)))
 215                         free(p, M_DEVBUF);
 216         }
 217
 218         for (i=0; i<os_max_cache_pages; i++) {
 219                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 220                 HPT_ASSERT(p);
 221                 free_pages(p, 0);
 222         }
 223
 224         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 225                 int order, size;
 226 #if DBG
 227                 if (f->count!=f->reserved_count) {
 228                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 229                 }
 230 #endif
 231                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 232
 233                 while ((p=freelist_get_dma(f, &bus))) {
 234                         if (order)
 235                                 free_pages(p, order);
 236                         else {
 237                         /* can't free immediately since other blocks in this page may still be in the list */
 238                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 239                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 240                         }
 241                 }
 242         }
 243
 244         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 245                 free_pages(p, 0);
 246 }
 247
 248 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 249 {
 250         PHBA hba;
 251
 252         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 253                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 254                         KdPrint(("fail to initialize %p", hba));
 255                         return -1;
 256                 }
 257
 258         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 259         return 0;
 260 }
 261
 262 static void hpt_flush_done(PCOMMAND pCmd)
 263 {
 264         PVDEV vd = pCmd->target;
 265
 266         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 267                 vd = vd->u.array.transform->target;
 268                 HPT_ASSERT(vd);
 269                 pCmd->target = vd;
 270                 pCmd->Result = RETURN_PENDING;
 271                 vdev_queue_cmd(pCmd);
 272                 return;
 273         }
 274
 275         *(int *)pCmd->priv = 1;
 276         wakeup(pCmd);
 277 }
 278
 279 /*
 280  * flush a vdev (without retry).
 281  */
 282 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 283 {
 284         PCOMMAND pCmd;
 285         int result = 0, done;
 286         HPT_UINT count;
 287
 288         KdPrint(("flusing dev %p", vd));
 289
 290         hpt_lock_vbus(vbus_ext);
 291
 292         if (mIsArray(vd->type) && vd->u.array.transform)
 293                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 294                                         vd->u.array.transform->target->cmds_per_request);
 295         else
 296                 count = vd->cmds_per_request;
 297
 298         pCmd = ldm_alloc_cmds(vd->vbus, count);
 299
 300         if (!pCmd) {
 301                 hpt_unlock_vbus(vbus_ext);
 302                 return -1;
 303         }
 304
 305         pCmd->type = CMD_TYPE_FLUSH;
 306         pCmd->flags.hard_flush = 1;
 307         pCmd->target = vd;
 308         pCmd->done = hpt_flush_done;
 309         done = 0;
 310         pCmd->priv = &done;
 311
 312         ldm_queue_cmd(pCmd);
 313
 314         if (!done) {
 315                 while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
 316                         ldm_reset_vbus(vd->vbus);
 317                 }
 318         }
 319
 320         KdPrint(("flush result %d", pCmd->Result));
 321
 322         if (pCmd->Result!=RETURN_SUCCESS)
 323                 result = -1;
 324
 325         ldm_free_cmds(pCmd);
 326
 327         hpt_unlock_vbus(vbus_ext);
 328
 329         return result;
 330 }
 331
 332 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 333 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 334 {
 335         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 336         PHBA hba;
 337         int i;
 338
 339         KdPrint(("hpt_shutdown_vbus"));
 340
 341         /* stop all ctl tasks and disable the worker taskqueue */
 342         hpt_stop_tasks(vbus_ext);
 343         vbus_ext->worker.ta_context = 0;
 344
 345         /* flush devices */
 346         for (i=0; i<osm_max_targets; i++) {
 347                 PVDEV vd = ldm_find_target(vbus, i);
 348                 if (vd) {
 349                         /* retry once */
 350                         if (hpt_flush_vdev(vbus_ext, vd))
 351                                 hpt_flush_vdev(vbus_ext, vd);
 352                 }
 353         }
 354
 355         hpt_lock_vbus(vbus_ext);
 356         ldm_shutdown(vbus);
 357         hpt_unlock_vbus(vbus_ext);
 358
 359         ldm_release_vbus(vbus);
 360
 361         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 362                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 363
 364         hpt_free_mem(vbus_ext);
 365
 366         while ((hba=vbus_ext->hba_list)) {
 367                 vbus_ext->hba_list = hba->next;
 368                 free(hba->ldm_adapter.him_handle, M_DEVBUF);
 369         }
 370
 371         free(vbus_ext, M_DEVBUF);
 372         KdPrint(("hpt_shutdown_vbus done"));
 373 }
 374
 375 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 376 {
 377         OSM_TASK *tasks;
 378
 379         tasks = vbus_ext->tasks;
 380         vbus_ext->tasks = 0;
 381
 382         while (tasks) {
 383                 OSM_TASK *t = tasks;
 384                 tasks = t->next;
 385                 t->next = 0;
 386                 t->func(vbus_ext->vbus, t->data);
 387         }
 388 }
 389
 390 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 391 {
 392         if(vbus_ext){
 393                 hpt_lock_vbus(vbus_ext);
 394                 __hpt_do_tasks(vbus_ext);
 395                 hpt_unlock_vbus(vbus_ext);
 396         }
 397 }
 398
 399 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 400 static void hpt_poll(struct cam_sim *sim);
 401 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 402 static void hpt_pci_intr(void *arg);
 403
 404 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 405 {
 406         POS_CMDEXT p = vbus_ext->cmdext_list;
 407         if (p)
 408                 vbus_ext->cmdext_list = p->next;
 409         return p;
 410 }
 411
 412 static __inline void cmdext_put(POS_CMDEXT p)
 413 {
 414         p->next = p->vbus_ext->cmdext_list;
 415         p->vbus_ext->cmdext_list = p;
 416 }
 417
 418 static void hpt_timeout(void *arg)
 419 {
 420         PCOMMAND pCmd = (PCOMMAND)arg;
 421         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 422
 423         KdPrint(("pCmd %p timeout", pCmd));
 424
 425         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 426 }
 427
 428 static void os_cmddone(PCOMMAND pCmd)
 429 {
 430         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 431         union ccb *ccb = ext->ccb;
 432
 433         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 434
 435         untimeout(hpt_timeout, pCmd, ext->timeout_ch);
 436
 437         switch(pCmd->Result) {
 438         case RETURN_SUCCESS:
 439                 ccb->ccb_h.status = CAM_REQ_CMP;
 440                 break;
 441         case RETURN_BAD_DEVICE:
 442                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 443                 break;
 444         case RETURN_DEVICE_BUSY:
 445                 ccb->ccb_h.status = CAM_BUSY;
 446                 break;
 447         case RETURN_INVALID_REQUEST:
 448                 ccb->ccb_h.status = CAM_REQ_INVALID;
 449                 break;
 450         case RETURN_SELECTION_TIMEOUT:
 451                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 452                 break;
 453         case RETURN_RETRY:
 454                 ccb->ccb_h.status = CAM_BUSY;
 455                 break;
 456         default:
 457                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 458                 break;
 459         }
 460
 461         if (pCmd->flags.data_in) {
 462                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 463         }
 464         else if (pCmd->flags.data_out) {
 465                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 466         }
 467
 468         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 469
 470         cmdext_put(ext);
 471         ldm_free_cmds(pCmd);
 472         xpt_done(ccb);
 473 }
 474
 475 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 476 {
 477         /* since we have provided physical sg, nobody will ask us to build physical sg */
 478         HPT_ASSERT(0);
 479         return FALSE;
 480 }
 481
 482 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 483 {
 484         PCOMMAND pCmd = (PCOMMAND)arg;
 485         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 486         PSG psg = pCmd->psg;
 487         int idx;
 488
 489         HPT_ASSERT(pCmd->flags.physical_sg);
 490
 491         if (error)
 492                 panic("busdma error");
 493
 494         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 495
 496         if (nsegs != 0) {
 497                 for (idx = 0; idx < nsegs; idx++, psg++) {
 498                         psg->addr.bus = segs[idx].ds_addr;
 499                         psg->size = segs[idx].ds_len;
 500                         psg->eot = 0;
 501                 }
 502                 psg[-1].eot = 1;
 503
 504                 if (pCmd->flags.data_in) {
 505                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 506                             BUS_DMASYNC_PREREAD);
 507                 }
 508                 else if (pCmd->flags.data_out) {
 509                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 510                             BUS_DMASYNC_PREWRITE);
 511                 }
 512         }
 513         ext->timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
 514         ldm_queue_cmd(pCmd);
 515 }
 516
 517 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 518 {
 519         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 520         PVDEV vd;
 521         PCOMMAND pCmd;
 522         POS_CMDEXT ext;
 523         HPT_U8 *cdb;
 524
 525         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 526                 cdb = ccb->csio.cdb_io.cdb_ptr;
 527         else
 528                 cdb = ccb->csio.cdb_io.cdb_bytes;
 529
 530         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 531                 ccb,
 532                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 533                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 534         ));
 535
 536         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 537         if (ccb->ccb_h.target_lun != 0 ||
 538                 ccb->ccb_h.target_id >= osm_max_targets ||
 539                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 540         {
 541                 ccb->ccb_h.status = CAM_TID_INVALID;
 542                 xpt_done(ccb);
 543                 return;
 544         }
 545
 546         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 547
 548         if (!vd) {
 549                 ccb->ccb_h.status = CAM_TID_INVALID;
 550                 xpt_done(ccb);
 551                 return;
 552         }
 553
 554         switch (cdb[0]) {
 555         case TEST_UNIT_READY:
 556         case START_STOP_UNIT:
 557         case SYNCHRONIZE_CACHE:
 558                 ccb->ccb_h.status = CAM_REQ_CMP;
 559                 break;
 560
 561         case INQUIRY:
 562                 {
 563                         PINQUIRYDATA inquiryData;
 564                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 565                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 566
 567                         inquiryData->AdditionalLength = 31;
 568                         inquiryData->CommandQueue = 1;
 569                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 570                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 571
 572                         if (vd->target_id / 10) {
 573                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 574                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 575                         }
 576                         else
 577                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 578
 579                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 580
 581                         ccb->ccb_h.status = CAM_REQ_CMP;
 582                 }
 583                 break;
 584
 585         case READ_CAPACITY:
 586         {
 587                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 588                 HPT_U32 cap;
 589
 590                 if (vd->capacity>0xfffffffful)
 591                         cap = 0xfffffffful;
 592                 else
 593                         cap = vd->capacity - 1;
 594
 595                 rbuf[0] = (HPT_U8)(cap>>24);
 596                 rbuf[1] = (HPT_U8)(cap>>16);
 597                 rbuf[2] = (HPT_U8)(cap>>8);
 598                 rbuf[3] = (HPT_U8)cap;
 599                 rbuf[4] = 0;
 600                 rbuf[5] = 0;
 601                 rbuf[6] = 2;
 602                 rbuf[7] = 0;
 603
 604                 ccb->ccb_h.status = CAM_REQ_CMP;
 605                 break;
 606         }
 607
 608         case SERVICE_ACTION_IN:
 609         {
 610                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 611                 HPT_U64 cap = vd->capacity - 1;
 612
 613                 rbuf[0] = (HPT_U8)(cap>>56);
 614                 rbuf[1] = (HPT_U8)(cap>>48);
 615                 rbuf[2] = (HPT_U8)(cap>>40);
 616                 rbuf[3] = (HPT_U8)(cap>>32);
 617                 rbuf[4] = (HPT_U8)(cap>>24);
 618                 rbuf[5] = (HPT_U8)(cap>>16);
 619                 rbuf[6] = (HPT_U8)(cap>>8);
 620                 rbuf[7] = (HPT_U8)cap;
 621                 rbuf[8] = 0;
 622                 rbuf[9] = 0;
 623                 rbuf[10] = 2;
 624                 rbuf[11] = 0;
 625
 626                 ccb->ccb_h.status = CAM_REQ_CMP;
 627                 break;
 628         }
 629
 630         case READ_6:
 631         case READ_10:
 632         case READ_16:
 633         case WRITE_6:
 634         case WRITE_10:
 635         case WRITE_16:
 636         case 0x13:
 637         case 0x2f:
 638         case 0x8f: /* VERIFY_16 */
 639         {
 640                 int error;
 641                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 642                 if(!pCmd){
 643                         KdPrint(("Failed to allocate command!"));
 644                         ccb->ccb_h.status = CAM_BUSY;
 645                         break;
 646                 }
 647
 648                 switch (cdb[0]) {
 649                 case READ_6:
 650                 case WRITE_6:
 651                 case 0x13:
 652                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 653                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 654                         break;
 655                 case READ_16:
 656                 case WRITE_16:
 657                 case 0x8f: /* VERIFY_16 */
 658                 {
 659                         HPT_U64 block =
 660                                 ((HPT_U64)cdb[2]<<56) |
 661                                 ((HPT_U64)cdb[3]<<48) |
 662                                 ((HPT_U64)cdb[4]<<40) |
 663                                 ((HPT_U64)cdb[5]<<32) |
 664                                 ((HPT_U64)cdb[6]<<24) |
 665                                 ((HPT_U64)cdb[7]<<16) |
 666                                 ((HPT_U64)cdb[8]<<8) |
 667                                 ((HPT_U64)cdb[9]);
 668                         pCmd->uCmd.Ide.Lba = block;
 669                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 670                         break;
 671                 }
 672
 673                 default:
 674                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 675                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 676                         break;
 677                 }
 678
 679                 switch (cdb[0]) {
 680                 case READ_6:
 681                 case READ_10:
 682                 case READ_16:
 683                         pCmd->flags.data_in = 1;
 684                         break;
 685                 case WRITE_6:
 686                 case WRITE_10:
 687                 case WRITE_16:
 688                         pCmd->flags.data_out = 1;
 689                         break;
 690                 }
 691                 pCmd->priv = ext = cmdext_get(vbus_ext);
 692                 HPT_ASSERT(ext);
 693                 ext->ccb = ccb;
 694                 pCmd->target = vd;
 695                 pCmd->done = os_cmddone;
 696                 pCmd->buildsgl = os_buildsgl;
 697                 pCmd->psg = ext->psg;
 698                 pCmd->flags.physical_sg = 1;
 699                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 700                                         ext->dma_map, ccb,
 701                                         hpt_io_dmamap_callback, pCmd,
 702                                         BUS_DMA_WAITOK
 703                                         );
 704                 KdPrint(("bus_dmamap_load return %d", error));
 705                 if (error && error!=EINPROGRESS) {
 706                         os_printk("bus_dmamap_load error %d", error);
 707                         cmdext_put(ext);
 708                         ldm_free_cmds(pCmd);
 709                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 710                         xpt_done(ccb);
 711                 }
 712                 return;
 713         }
 714
 715         default:
 716                 ccb->ccb_h.status = CAM_REQ_INVALID;
 717                 break;
 718         }
 719
 720         xpt_done(ccb);
 721         return;
 722 }
 723
 724 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 725 {
 726         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 727
 728         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 729
 730         switch (ccb->ccb_h.func_code) {
 731
 732         case XPT_SCSI_IO:
 733                 hpt_lock_vbus(vbus_ext);
 734                 hpt_scsi_io(vbus_ext, ccb);
 735                 hpt_unlock_vbus(vbus_ext);
 736                 return;
 737
 738         case XPT_RESET_BUS:
 739                 hpt_lock_vbus(vbus_ext);
 740                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 741                 hpt_unlock_vbus(vbus_ext);
 742                 break;
 743
 744         case XPT_GET_TRAN_SETTINGS:
 745         case XPT_SET_TRAN_SETTINGS:
 746                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 747                 break;
 748
 749         case XPT_CALC_GEOMETRY:
 750                 ccb->ccg.heads = 255;
 751                 ccb->ccg.secs_per_track = 63;
 752                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 753                 ccb->ccb_h.status = CAM_REQ_CMP;
 754                 break;
 755
 756         case XPT_PATH_INQ:
 757         {
 758                 struct ccb_pathinq *cpi = &ccb->cpi;
 759
 760                 cpi->version_num = 1;
 761                 cpi->hba_inquiry = PI_SDTR_ABLE;
 762                 cpi->target_sprt = 0;
 763                 cpi->hba_misc = PIM_NOBUSRESET;
 764                 cpi->hba_eng_cnt = 0;
 765                 cpi->max_target = osm_max_targets;
 766                 cpi->max_lun = 0;
 767                 cpi->unit_number = cam_sim_unit(sim);
 768                 cpi->bus_id = cam_sim_bus(sim);
 769                 cpi->initiator_id = osm_max_targets;
 770                 cpi->base_transfer_speed = 3300;
 771
 772                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 773                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 774                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 775 #if (__FreeBSD_version >= 800000)
 776                 cpi->transport = XPORT_SPI;
 777                 cpi->transport_version = 2;
 778                 cpi->protocol = PROTO_SCSI;
 779                 cpi->protocol_version = SCSI_REV_2;
 780 #endif
 781                 cpi->ccb_h.status = CAM_REQ_CMP;
 782                 break;
 783         }
 784
 785         default:
 786                 ccb->ccb_h.status = CAM_REQ_INVALID;
 787                 break;
 788         }
 789
 790         xpt_done(ccb);
 791         return;
 792 }
 793
 794 static void hpt_pci_intr(void *arg)
 795 {
 796         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 797         hpt_lock_vbus(vbus_ext);
 798         ldm_intr((PVBUS)vbus_ext->vbus);
 799         hpt_unlock_vbus(vbus_ext);
 800 }
 801
 802 static void hpt_poll(struct cam_sim *sim)
 803 {
 804         hpt_pci_intr(cam_sim_softc(sim));
 805 }
 806
 807 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 808 {
 809         KdPrint(("hpt_async"));
 810 }
 811
 812 static int hpt_shutdown(device_t dev)
 813 {
 814         KdPrint(("hpt_shutdown(dev=%p)", dev));
 815         return 0;
 816 }
 817
 818 static int hpt_detach(device_t dev)
 819 {
 820         /* we don't allow the driver to be unloaded. */
 821         return EBUSY;
 822 }
 823
 824 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 825 {
 826         arg->ioctl_cmnd = 0;
 827         wakeup(arg);
 828 }
 829
 830 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 831 {
 832         ioctl_args->result = -1;
 833         ioctl_args->done = hpt_ioctl_done;
 834         ioctl_args->ioctl_cmnd = (void *)1;
 835
 836         hpt_lock_vbus(vbus_ext);
 837         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 838
 839         while (ioctl_args->ioctl_cmnd) {
 840                 if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
 841                         break;
 842                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 843                 __hpt_do_tasks(vbus_ext);
 844         }
 845
 846         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 847
 848         hpt_unlock_vbus(vbus_ext);
 849 }
 850
 851 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 852 {
 853         PVBUS vbus;
 854         PVBUS_EXT vbus_ext;
 855
 856         ldm_for_each_vbus(vbus, vbus_ext) {
 857                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 858                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 859                         return;
 860         }
 861 }
 862
 863 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 864         IOCTL_ARG arg;\
 865         arg.dwIoControlCode = code;\
 866         arg.lpInBuffer = inbuf;\
 867         arg.lpOutBuffer = outbuf;\
 868         arg.nInBufferSize = insize;\
 869         arg.nOutBufferSize = outsize;\
 870         arg.lpBytesReturned = 0;\
 871         hpt_do_ioctl(&arg);\
 872         arg.result;\
 873 })
 874
 875 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 876
 877 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 878 {
 879         int i;
 880         HPT_U32 count = nMaxCount-1;
 881
 882         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 883                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 884                 return -1;
 885
 886         nMaxCount = (int)pIds[0];
 887         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 888         return nMaxCount;
 889 }
 890
 891 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 892 {
 893         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 894                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 895 }
 896
 897 /* not belong to this file logically, but we want to use ioctl interface */
 898 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 899 {
 900         LOGICAL_DEVICE_INFO_V3 devinfo;
 901         int i, result;
 902         DEVICEID param[2] = { id, 0 };
 903
 904         if (hpt_get_device_info_v3(id, &devinfo))
 905                 return -1;
 906
 907         if (devinfo.Type!=LDT_ARRAY)
 908                 return -1;
 909
 910         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 911                 param[1] = AS_REBUILD_ABORT;
 912         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 913                 param[1] = AS_VERIFY_ABORT;
 914         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 915                 param[1] = AS_INITIALIZE_ABORT;
 916         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 917                 param[1] = AS_TRANSFORM_ABORT;
 918         else
 919                 return -1;
 920
 921         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 922         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 923                                 param, sizeof(param), 0, 0);
 924
 925         for (i=0; i<devinfo.u.array.nDisk; i++)
 926                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 927                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 928
 929         return result;
 930 }
 931
 932 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 933 {
 934         DEVICEID ids[32];
 935         int i, count;
 936
 937         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 938
 939         for (i=0; i<count; i++)
 940                 __hpt_stop_tasks(vbus_ext, ids[i]);
 941 }
 942
 943 static  d_open_t        hpt_open;
 944 static  d_close_t       hpt_close;
 945 static  d_ioctl_t       hpt_ioctl;
 946 static  int             hpt_rescan_bus(void);
 947
 948 static struct cdevsw hpt_cdevsw = {
 949         .d_open =       hpt_open,
 950         .d_close =      hpt_close,
 951         .d_ioctl =      hpt_ioctl,
 952         .d_name =       driver_name,
 953 #if __FreeBSD_version>=503000
 954         .d_version =    D_VERSION,
 955 #endif
 956 #if (__FreeBSD_version>=503000 && __FreeBSD_version<600034)
 957         .d_flags =      D_NEEDGIANT,
 958 #endif
 959 #if __FreeBSD_version<600034
 960 #if __FreeBSD_version>501000
 961         .d_maj =        MAJOR_AUTO,
 962 #else
 963         .d_maj = HPT_DEV_MAJOR,
 964 #endif
 965 #endif
 966 };
 967
 968 static struct intr_config_hook hpt_ich;
 969
 970 /*
 971  * hpt_final_init will be called after all hpt_attach.
 972  */
 973 static void hpt_final_init(void *dummy)
 974 {
 975         int       i,unit_number=0;
 976         PVBUS_EXT vbus_ext;
 977         PVBUS vbus;
 978         PHBA hba;
 979
 980         /* Clear the config hook */
 981         config_intrhook_disestablish(&hpt_ich);
 982
 983         /* allocate memory */
 984         i = 0;
 985         ldm_for_each_vbus(vbus, vbus_ext) {
 986                 if (hpt_alloc_mem(vbus_ext)) {
 987                         os_printk("out of memory");
 988                         return;
 989                 }
 990                 i++;
 991         }
 992
 993         if (!i) {
 994                 if (bootverbose)
 995                         os_printk("no controller detected.");
 996                 return;
 997         }
 998
 999         /* initializing hardware */
1000         ldm_for_each_vbus(vbus, vbus_ext) {
1001                 /* make timer available here */
1002                 callout_handle_init(&vbus_ext->timer);
1003                 if (hpt_init_vbus(vbus_ext)) {
1004                         os_printk("fail to initialize hardware");
1005                         break; /* FIXME */
1006                 }
1007         }
1008
1009         /* register CAM interface */
1010         ldm_for_each_vbus(vbus, vbus_ext) {
1011                 struct cam_devq *devq;
1012                 struct ccb_setasync     ccb;
1013
1014 #if (__FreeBSD_version >= 500000)
1015                 mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
1016 #endif
1017                 if (bus_dma_tag_create(NULL,/* parent */
1018                                 4,      /* alignment */
1019                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1020                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1021                                 BUS_SPACE_MAXADDR,      /* highaddr */
1022                                 NULL, NULL,             /* filter, filterarg */
1023                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1024                                 os_max_sg_descriptors,  /* nsegments */
1025                                 0x10000,        /* maxsegsize */
1026                                 BUS_DMA_WAITOK,         /* flags */
1027 #if __FreeBSD_version>502000
1028                                 busdma_lock_mutex,      /* lockfunc */
1029                                 &vbus_ext->lock,                /* lockfuncarg */
1030 #endif
1031                                 &vbus_ext->io_dmat      /* tag */))
1032                 {
1033                         return ;
1034                 }
1035
1036                 for (i=0; i<os_max_queue_comm; i++) {
1037                         POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1038                         if (!ext) {
1039                                 os_printk("Can't alloc cmdext(%d)", i);
1040                                 return ;
1041                         }
1042                         ext->vbus_ext = vbus_ext;
1043                         ext->next = vbus_ext->cmdext_list;
1044                         vbus_ext->cmdext_list = ext;
1045
1046                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1047                                 os_printk("Can't create dma map(%d)", i);
1048                                 return ;
1049                         }
1050                         callout_handle_init(&ext->timeout_ch);
1051                 }
1052
1053                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1054                         os_printk("cam_simq_alloc failed");
1055                         return ;
1056                 }
1057
1058 #if __FreeBSD_version > 700025
1059                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1060                                 vbus_ext, unit_number, &Giant, os_max_queue_comm, /*tagged*/8,  devq);
1061 #else
1062                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1063                                 vbus_ext, unit_number, os_max_queue_comm, /*tagged*/8,  devq);
1064 #endif
1065                 unit_number++;
1066                 if (!vbus_ext->sim) {
1067                         os_printk("cam_sim_alloc failed");
1068                         cam_simq_free(devq);
1069                         return ;
1070                 }
1071
1072 #if __FreeBSD_version > 700044
1073                 if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
1074 #else
1075                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1076 #endif
1077                         os_printk("xpt_bus_register failed");
1078                         cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
1079                         vbus_ext->sim = NULL;
1080                         return ;
1081                 }
1082
1083                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1084                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1085                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1086                 {
1087                         os_printk("xpt_create_path failed");
1088                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1089                         cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
1090                         vbus_ext->sim = NULL;
1091                         return ;
1092                 }
1093
1094                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1095                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1096                 ccb.event_enable = AC_LOST_DEVICE;
1097                 ccb.callback = hpt_async;
1098                 ccb.callback_arg = vbus_ext;
1099                 xpt_action((union ccb *)&ccb);
1100
1101                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1102                         int rid = 0;
1103                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1104                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1105                         {
1106                                 os_printk("can't allocate interrupt");
1107                                 return ;
1108                         }
1109
1110                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
1111 #if __FreeBSD_version > 700025
1112                                 NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
1113 #else
1114                                 hpt_pci_intr, vbus_ext, &hba->irq_handle))
1115 #endif
1116                         {
1117                                 os_printk("can't set up interrupt");
1118                                 return ;
1119                         }
1120                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1121
1122                 }
1123
1124                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1125                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1126                 if (!vbus_ext->shutdown_eh)
1127                         os_printk("Shutdown event registration failed");
1128         }
1129
1130         ldm_for_each_vbus(vbus, vbus_ext) {
1131                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1132                 if (vbus_ext->tasks)
1133                         TASK_ENQUEUE(&vbus_ext->worker);
1134         }
1135
1136         make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1137             S_IRUSR | S_IWUSR, "%s", driver_name);
1138 }
1139
1140 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
1141
1142 typedef struct driverlink *driverlink_t;
1143 struct driverlink {
1144         kobj_class_t    driver;
1145         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1146 };
1147
1148 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1149
1150 struct devclass {
1151         TAILQ_ENTRY(devclass) link;
1152         devclass_t      parent;         /* parent in devclass hierarchy */
1153         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1154         char            *name;
1155         device_t        *devices;       /* array of devices indexed by unit */
1156         int             maxunit;        /* size of devices array */
1157 };
1158
1159 static void override_kernel_driver(void)
1160 {
1161         driverlink_t dl, dlfirst;
1162         driver_t *tmpdriver;
1163         devclass_t dc = devclass_find("pci");
1164
1165         if (dc){
1166                 dlfirst = TAILQ_FIRST(&dc->drivers);
1167                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1168                         if(strcmp(dl->driver->name, driver_name) == 0) {
1169                                 tmpdriver=dl->driver;
1170                                 dl->driver=dlfirst->driver;
1171                                 dlfirst->driver=tmpdriver;
1172                                 break;
1173                         }
1174                 }
1175         }
1176 }
1177
1178 #else
1179 #define override_kernel_driver()
1180 #endif
1181
1182 static void hpt_init(void *dummy)
1183 {
1184         if (bootverbose)
1185                 os_printk("%s %s", driver_name_long, driver_ver);
1186
1187         override_kernel_driver();
1188         init_config();
1189
1190         hpt_ich.ich_func = hpt_final_init;
1191         hpt_ich.ich_arg = NULL;
1192         if (config_intrhook_establish(&hpt_ich) != 0) {
1193                 printf("%s: cannot establish configuration hook\n",
1194                     driver_name_long);
1195         }
1196
1197 }
1198 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1199
1200 /*
1201  * CAM driver interface
1202  */
1203 static device_method_t driver_methods[] = {
1204         /* Device interface */
1205         DEVMETHOD(device_probe,         hpt_probe),
1206         DEVMETHOD(device_attach,        hpt_attach),
1207         DEVMETHOD(device_detach,        hpt_detach),
1208         DEVMETHOD(device_shutdown,      hpt_shutdown),
1209         { 0, 0 }
1210 };
1211
1212 static driver_t hpt_pci_driver = {
1213         driver_name,
1214         driver_methods,
1215         sizeof(HBA)
1216 };
1217
1218 static devclass_t       hpt_devclass;
1219
1220 #ifndef TARGETNAME
1221 #error "no TARGETNAME found"
1222 #endif
1223
1224 /* use this to make TARGETNAME be expanded */
1225 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1226 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1227 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1228 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1229 __MODULE_VERSION(TARGETNAME, 1);
1230 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1231
1232 #if __FreeBSD_version>503000
1233 typedef struct cdev * ioctl_dev_t;
1234 #else
1235 typedef dev_t ioctl_dev_t;
1236 #endif
1237
1238 #if __FreeBSD_version >= 500000
1239 typedef struct thread * ioctl_thread_t;
1240 #else
1241 typedef struct proc *   ioctl_thread_t;
1242 #endif
1243
1244 static int hpt_open(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
1245 {
1246         return 0;
1247 }
1248
1249 static int hpt_close(ioctl_dev_t dev, int flags, int devtype, ioctl_thread_t td)
1250 {
1251         return 0;
1252 }
1253
1254 static int hpt_ioctl(ioctl_dev_t dev, u_long cmd, caddr_t data, int fflag, ioctl_thread_t td)
1255 {
1256         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1257         IOCTL_ARG ioctl_args;
1258         HPT_U32 bytesReturned;
1259
1260         switch (cmd){
1261         case HPT_DO_IOCONTROL:
1262         {
1263                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1264                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1265                                 piop->dwIoControlCode,
1266                                 piop->lpInBuffer,
1267                                 piop->nInBufferSize,
1268                                 piop->lpOutBuffer,
1269                                 piop->nOutBufferSize));
1270
1271                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1272
1273                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1274                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1275                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1276                 ioctl_args.lpBytesReturned = &bytesReturned;
1277
1278                 if (ioctl_args.nInBufferSize) {
1279                         ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1280                         if (!ioctl_args.lpInBuffer)
1281                                 goto invalid;
1282                         if (copyin((void*)piop->lpInBuffer,
1283                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1284                                 goto invalid;
1285                 }
1286
1287                 if (ioctl_args.nOutBufferSize) {
1288                         ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1289                         if (!ioctl_args.lpOutBuffer)
1290                                 goto invalid;
1291                 }
1292
1293 #if (__FreeBSD_version >= 500000)
1294                 mtx_lock(&Giant);
1295 #endif
1296
1297                 hpt_do_ioctl(&ioctl_args);
1298
1299 #if (__FreeBSD_version >= 500000)
1300                 mtx_unlock(&Giant);
1301 #endif
1302
1303                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1304                         if (piop->nOutBufferSize) {
1305                                 if (copyout(ioctl_args.lpOutBuffer,
1306                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1307                                         goto invalid;
1308                         }
1309                         if (piop->lpBytesReturned) {
1310                                 if (copyout(&bytesReturned,
1311                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1312                                         goto invalid;
1313                         }
1314                         if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1315                         if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1316                         return 0;
1317                 }
1318 invalid:
1319                 if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1320                 if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1321                 return EFAULT;
1322         }
1323         return EFAULT;
1324         }
1325
1326         case HPT_SCAN_BUS:
1327         {
1328                 return hpt_rescan_bus();
1329         }
1330         default:
1331                 KdPrint(("invalid command!"));
1332                 return EFAULT;
1333         }
1334
1335 }
1336
1337 static int      hpt_rescan_bus(void)
1338 {
1339         union ccb                       *ccb;
1340         PVBUS                           vbus;
1341         PVBUS_EXT                       vbus_ext;
1342
1343         mtx_lock(&Giant);
1344
1345         ldm_for_each_vbus(vbus, vbus_ext) {
1346                 if ((ccb = xpt_alloc_ccb()) == NULL)
1347                 {
1348                         return(ENOMEM);
1349                 }
1350                 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(vbus_ext->sim),
1351                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1352                 {
1353                         xpt_free_ccb(ccb);
1354                         return(EIO);
1355                 }
1356                 xpt_rescan(ccb);
1357         }
1358         mtx_unlock(&Giant);
1359         return(0);
1360 }
1361