sys/dev/raid/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: src/sys/dev/hpt27xx/osm_bsd.c,v 1.1 2011/12/28 23:26:58 delphij Exp $
  27  */
  28
  29 #include <dev/raid/hpt27xx/hpt27xx_config.h>
  30
  31 #include <dev/raid/hpt27xx/os_bsd.h>
  32 #include <dev/raid/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 0;
  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         pci_enable_busmaster(dev);
  75
  76         pci_id.vid = pci_get_vendor(dev);
  77         pci_id.did = pci_get_device(dev);
  78         pci_id.rev = pci_get_revid(dev);
  79         pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
  80
  81         size = him->get_adapter_size(&pci_id);
  82         hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
  83         if (!hba->ldm_adapter.him_handle)
  84                 return ENXIO;
  85
  86         hba->pcidev = dev;
  87         hba->pciaddr.tree = 0;
  88         hba->pciaddr.bus = pci_get_bus(dev);
  89         hba->pciaddr.device = pci_get_slot(dev);
  90         hba->pciaddr.function = pci_get_function(dev);
  91
  92         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
  93                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
  94                 return -1;
  95         }
  96
  97         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
  98                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
  99
 100         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 101                 size = ldm_get_vbus_size();
 102                 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 103                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 104                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 105                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 106                 ldm_register_adapter(&hba->ldm_adapter);
 107         }
 108
 109         ldm_for_each_vbus(vbus, vbus_ext) {
 110                 if (hba->ldm_adapter.vbus==vbus) {
 111                         hba->vbus_ext = vbus_ext;
 112                         hba->next = vbus_ext->hba_list;
 113                         vbus_ext->hba_list = hba;
 114                         break;
 115                 }
 116         }
 117         return 0;
 118 }
 119
 120 /*
 121  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 122  * but there are some problems currently (alignment, etc).
 123  */
 124 static __inline void *__get_free_pages(int order)
 125 {
 126         /* don't use low memory - other devices may get starved */
 127         return contigmalloc(PAGE_SIZE<<order,
 128                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 129 }
 130
 131 static __inline void free_pages(void *p, int order)
 132 {
 133         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 134 }
 135
 136 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 137 {
 138         PHBA hba;
 139         struct freelist *f;
 140         HPT_UINT i;
 141         void **p;
 142
 143         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 144                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 145
 146         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 147
 148         for (f=vbus_ext->freelist_head; f; f=f->next) {
 149                 KdPrint(("%s: %d*%d=%d bytes",
 150                         f->tag, f->count, f->size, f->count*f->size));
 151                 for (i=0; i<f->count; i++) {
 152                         p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
 153                         if (!p) return (ENXIO);
 154                         *p = f->head;
 155                         f->head = p;
 156                 }
 157         }
 158
 159         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 160                 int order, size, j;
 161
 162                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 163
 164                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 165
 166                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 167                         f->tag, f->count, f->size, f->count*f->size, order));
 168                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 169
 170                 for (i=0; i<f->count;) {
 171                         p = (void **)__get_free_pages(order);
 172                         if (!p) return -1;
 173                         for (j = size/f->size; j && i<f->count; i++,j--) {
 174                                 *p = f->head;
 175                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 176                                 f->head = p;
 177                                 p = (void **)((unsigned long)p + f->size);
 178                         }
 179                 }
 180         }
 181
 182         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 183
 184         for (i=0; i<os_max_cache_pages; i++) {
 185                 p = (void **)__get_free_pages(0);
 186                 if (!p) return -1;
 187                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 188                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 189         }
 190
 191         return 0;
 192 }
 193
 194 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 195 {
 196         struct freelist *f;
 197         void *p;
 198         int i;
 199         BUS_ADDRESS bus;
 200
 201         for (f=vbus_ext->freelist_head; f; f=f->next) {
 202 #if DBG
 203                 if (f->count!=f->reserved_count) {
 204                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 205                 }
 206 #endif
 207                 while ((p=freelist_get(f)))
 208                         kfree(p, M_DEVBUF);
 209         }
 210
 211         for (i=0; i<os_max_cache_pages; i++) {
 212                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 213                 HPT_ASSERT(p);
 214                 free_pages(p, 0);
 215         }
 216
 217         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 218                 int order, size;
 219 #if DBG
 220                 if (f->count!=f->reserved_count) {
 221                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 222                 }
 223 #endif
 224                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 225
 226                 while ((p=freelist_get_dma(f, &bus))) {
 227                         if (order)
 228                                 free_pages(p, order);
 229                         else {
 230                         /* can't free immediately since other blocks in this page may still be in the list */
 231                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 232                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 233                         }
 234                 }
 235         }
 236
 237         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 238                 free_pages(p, 0);
 239 }
 240
 241 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 242 {
 243         PHBA hba;
 244
 245         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 246                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 247                         KdPrint(("fail to initialize %p", hba));
 248                         return -1;
 249                 }
 250
 251         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 252         return 0;
 253 }
 254
 255 static void hpt_flush_done(PCOMMAND pCmd)
 256 {
 257         PVDEV vd = pCmd->target;
 258
 259         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 260                 vd = vd->u.array.transform->target;
 261                 HPT_ASSERT(vd);
 262                 pCmd->target = vd;
 263                 pCmd->Result = RETURN_PENDING;
 264                 vdev_queue_cmd(pCmd);
 265                 return;
 266         }
 267
 268         *(int *)pCmd->priv = 1;
 269         wakeup(pCmd);
 270 }
 271
 272 /*
 273  * flush a vdev (without retry).
 274  */
 275 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 276 {
 277         PCOMMAND pCmd;
 278         int result = 0, done;
 279         HPT_UINT count;
 280
 281         KdPrint(("flusing dev %p", vd));
 282
 283         hpt_lock_vbus(vbus_ext);
 284
 285         if (mIsArray(vd->type) && vd->u.array.transform)
 286                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 287                                         vd->u.array.transform->target->cmds_per_request);
 288         else
 289                 count = vd->cmds_per_request;
 290
 291         pCmd = ldm_alloc_cmds(vd->vbus, count);
 292
 293         if (!pCmd) {
 294                 hpt_unlock_vbus(vbus_ext);
 295                 return -1;
 296         }
 297
 298         pCmd->type = CMD_TYPE_FLUSH;
 299         pCmd->flags.hard_flush = 1;
 300         pCmd->target = vd;
 301         pCmd->done = hpt_flush_done;
 302         done = 0;
 303         pCmd->priv = &done;
 304
 305         ldm_queue_cmd(pCmd);
 306
 307         if (!done) {
 308                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
 309                         ldm_reset_vbus(vd->vbus);
 310                 }
 311         }
 312
 313         KdPrint(("flush result %d", pCmd->Result));
 314
 315         if (pCmd->Result!=RETURN_SUCCESS)
 316                 result = -1;
 317
 318         ldm_free_cmds(pCmd);
 319
 320         hpt_unlock_vbus(vbus_ext);
 321
 322         return result;
 323 }
 324
 325 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 326 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 327 {
 328         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 329         PHBA hba;
 330         int i;
 331
 332         KdPrint(("hpt_shutdown_vbus"));
 333
 334         /* stop all ctl tasks and disable the worker taskqueue */
 335         hpt_stop_tasks(vbus_ext);
 336         vbus_ext->worker.ta_context = NULL;
 337
 338         /* flush devices */
 339         for (i=0; i<osm_max_targets; i++) {
 340                 PVDEV vd = ldm_find_target(vbus, i);
 341                 if (vd) {
 342                         /* retry once */
 343                         if (hpt_flush_vdev(vbus_ext, vd))
 344                                 hpt_flush_vdev(vbus_ext, vd);
 345                 }
 346         }
 347
 348         hpt_lock_vbus(vbus_ext);
 349         ldm_shutdown(vbus);
 350         hpt_unlock_vbus(vbus_ext);
 351
 352         ldm_release_vbus(vbus);
 353
 354         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 355                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 356
 357         hpt_free_mem(vbus_ext);
 358
 359         while ((hba=vbus_ext->hba_list)) {
 360                 vbus_ext->hba_list = hba->next;
 361                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 362         }
 363
 364         kfree(vbus_ext, M_DEVBUF);
 365         KdPrint(("hpt_shutdown_vbus done"));
 366 }
 367
 368 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 369 {
 370         OSM_TASK *tasks;
 371
 372         tasks = vbus_ext->tasks;
 373         vbus_ext->tasks = NULL;
 374
 375         while (tasks) {
 376                 OSM_TASK *t = tasks;
 377                 tasks = t->next;
 378                 t->next = NULL;
 379                 t->func(vbus_ext->vbus, t->data);
 380         }
 381 }
 382
 383 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 384 {
 385         if(vbus_ext){
 386                 hpt_lock_vbus(vbus_ext);
 387                 __hpt_do_tasks(vbus_ext);
 388                 hpt_unlock_vbus(vbus_ext);
 389         }
 390 }
 391
 392 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 393 static void hpt_poll(struct cam_sim *sim);
 394 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 395 static void hpt_pci_intr(void *arg);
 396
 397 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 398 {
 399         POS_CMDEXT p = vbus_ext->cmdext_list;
 400         if (p)
 401                 vbus_ext->cmdext_list = p->next;
 402         return p;
 403 }
 404
 405 static __inline void cmdext_put(POS_CMDEXT p)
 406 {
 407         p->next = p->vbus_ext->cmdext_list;
 408         p->vbus_ext->cmdext_list = p;
 409 }
 410
 411 static void hpt_timeout(void *arg)
 412 {
 413         PCOMMAND pCmd = (PCOMMAND)arg;
 414         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 415
 416         KdPrint(("pCmd %p timeout", pCmd));
 417
 418         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 419 }
 420
 421 static void os_cmddone(PCOMMAND pCmd)
 422 {
 423         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 424         union ccb *ccb = ext->ccb;
 425
 426         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 427
 428         callout_stop(ccb->ccb_h.timeout_ch);
 429
 430         switch(pCmd->Result) {
 431         case RETURN_SUCCESS:
 432                 ccb->ccb_h.status = CAM_REQ_CMP;
 433                 break;
 434         case RETURN_BAD_DEVICE:
 435                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 436                 break;
 437         case RETURN_DEVICE_BUSY:
 438                 ccb->ccb_h.status = CAM_BUSY;
 439                 break;
 440         case RETURN_INVALID_REQUEST:
 441                 ccb->ccb_h.status = CAM_REQ_INVALID;
 442                 break;
 443         case RETURN_SELECTION_TIMEOUT:
 444                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 445                 break;
 446         case RETURN_RETRY:
 447                 ccb->ccb_h.status = CAM_BUSY;
 448                 break;
 449         default:
 450                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 451                 break;
 452         }
 453
 454         if (pCmd->flags.data_in) {
 455                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 456         }
 457         else if (pCmd->flags.data_out) {
 458                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 459         }
 460
 461         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 462
 463         cmdext_put(ext);
 464         ldm_free_cmds(pCmd);
 465         xpt_done(ccb);
 466 }
 467
 468 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 469 {
 470         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 471         union ccb *ccb = ext->ccb;
 472         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 473         int idx;
 474
 475         if(logical)     {
 476                 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
 477                         panic("physical address unsupported");
 478
 479                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 480                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 481                                 panic("physical address unsupported");
 482
 483                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 484                                 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
 485                                 pSg[idx].size = sgList[idx].ds_len;
 486                                 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 487                         }
 488                 }
 489                 else {
 490                         os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 491                         pSg->size = ccb->csio.dxfer_len;
 492                         pSg->eot = 1;
 493                 }
 494                 return TRUE;
 495         }
 496
 497         /* since we have provided physical sg, nobody will ask us to build physical sg */
 498         HPT_ASSERT(0);
 499         return FALSE;
 500 }
 501
 502 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 503 {
 504         PCOMMAND pCmd = (PCOMMAND)arg;
 505         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 506         PSG psg = pCmd->psg;
 507         int idx;
 508
 509         HPT_ASSERT(pCmd->flags.physical_sg);
 510
 511         if (error || nsegs == 0)
 512                 panic("busdma error");
 513
 514         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 515
 516         for (idx = 0; idx < nsegs; idx++, psg++) {
 517                 psg->addr.bus = segs[idx].ds_addr;
 518                 psg->size = segs[idx].ds_len;
 519                 psg->eot = 0;
 520         }
 521         psg[-1].eot = 1;
 522
 523         if (pCmd->flags.data_in) {
 524                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
 525         }
 526         else if (pCmd->flags.data_out) {
 527                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
 528         }
 529
 530         callout_reset(ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT,
 531                       hpt_timeout, pCmd);
 532         ldm_queue_cmd(pCmd);
 533 }
 534
 535 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 536 {
 537         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 538         PVDEV vd;
 539         PCOMMAND pCmd;
 540         POS_CMDEXT ext;
 541         HPT_U8 *cdb;
 542
 543         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 544                 cdb = ccb->csio.cdb_io.cdb_ptr;
 545         else
 546                 cdb = ccb->csio.cdb_io.cdb_bytes;
 547
 548         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 549                 ccb,
 550                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 551                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 552         ));
 553
 554         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 555         if (ccb->ccb_h.target_lun != 0 ||
 556                 ccb->ccb_h.target_id >= osm_max_targets ||
 557                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 558         {
 559                 ccb->ccb_h.status = CAM_TID_INVALID;
 560                 xpt_done(ccb);
 561                 return;
 562         }
 563
 564         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 565
 566         if (!vd) {
 567                 ccb->ccb_h.status = CAM_TID_INVALID;
 568                 xpt_done(ccb);
 569                 return;
 570         }
 571
 572         switch (cdb[0]) {
 573         case TEST_UNIT_READY:
 574         case START_STOP_UNIT:
 575         case SYNCHRONIZE_CACHE:
 576                 ccb->ccb_h.status = CAM_REQ_CMP;
 577                 break;
 578
 579         case INQUIRY:
 580                 {
 581                         PINQUIRYDATA inquiryData;
 582                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 583                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 584
 585                         inquiryData->AdditionalLength = 31;
 586                         inquiryData->CommandQueue = 1;
 587                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 588                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 589
 590                         if (vd->target_id / 10) {
 591                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 592                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 593                         }
 594                         else
 595                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 596
 597                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 598
 599                         ccb->ccb_h.status = CAM_REQ_CMP;
 600                 }
 601                 break;
 602
 603         case READ_CAPACITY:
 604         {
 605                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 606                 HPT_U32 cap;
 607
 608                 if (vd->capacity>0xfffffffful)
 609                         cap = 0xfffffffful;
 610                 else
 611                         cap = vd->capacity - 1;
 612
 613                 rbuf[0] = (HPT_U8)(cap>>24);
 614                 rbuf[1] = (HPT_U8)(cap>>16);
 615                 rbuf[2] = (HPT_U8)(cap>>8);
 616                 rbuf[3] = (HPT_U8)cap;
 617                 rbuf[4] = 0;
 618                 rbuf[5] = 0;
 619                 rbuf[6] = 2;
 620                 rbuf[7] = 0;
 621
 622                 ccb->ccb_h.status = CAM_REQ_CMP;
 623                 break;
 624         }
 625
 626         case SERVICE_ACTION_IN:
 627         {
 628                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 629                 HPT_U64 cap = vd->capacity - 1;
 630
 631                 rbuf[0] = (HPT_U8)(cap>>56);
 632                 rbuf[1] = (HPT_U8)(cap>>48);
 633                 rbuf[2] = (HPT_U8)(cap>>40);
 634                 rbuf[3] = (HPT_U8)(cap>>32);
 635                 rbuf[4] = (HPT_U8)(cap>>24);
 636                 rbuf[5] = (HPT_U8)(cap>>16);
 637                 rbuf[6] = (HPT_U8)(cap>>8);
 638                 rbuf[7] = (HPT_U8)cap;
 639                 rbuf[8] = 0;
 640                 rbuf[9] = 0;
 641                 rbuf[10] = 2;
 642                 rbuf[11] = 0;
 643
 644                 ccb->ccb_h.status = CAM_REQ_CMP;
 645                 break;
 646         }
 647
 648         case READ_6:
 649         case READ_10:
 650         case READ_16:
 651         case WRITE_6:
 652         case WRITE_10:
 653         case WRITE_16:
 654         case 0x13:
 655         case 0x2f:
 656         case 0x8f: /* VERIFY_16 */
 657         {
 658                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 659                 if(!pCmd){
 660                         KdPrint(("Failed to allocate command!"));
 661                         ccb->ccb_h.status = CAM_BUSY;
 662                         break;
 663                 }
 664
 665                 switch (cdb[0]) {
 666                 case READ_6:
 667                 case WRITE_6:
 668                 case 0x13:
 669                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 670                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 671                         break;
 672                 case READ_16:
 673                 case WRITE_16:
 674                 case 0x8f: /* VERIFY_16 */
 675                 {
 676                         HPT_U64 block =
 677                                 ((HPT_U64)cdb[2]<<56) |
 678                                 ((HPT_U64)cdb[3]<<48) |
 679                                 ((HPT_U64)cdb[4]<<40) |
 680                                 ((HPT_U64)cdb[5]<<32) |
 681                                 ((HPT_U64)cdb[6]<<24) |
 682                                 ((HPT_U64)cdb[7]<<16) |
 683                                 ((HPT_U64)cdb[8]<<8) |
 684                                 ((HPT_U64)cdb[9]);
 685                         pCmd->uCmd.Ide.Lba = block;
 686                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 687                         break;
 688                 }
 689
 690                 default:
 691                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 692                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 693                         break;
 694                 }
 695
 696                 switch (cdb[0]) {
 697                 case READ_6:
 698                 case READ_10:
 699                 case READ_16:
 700                         pCmd->flags.data_in = 1;
 701                         break;
 702                 case WRITE_6:
 703                 case WRITE_10:
 704                 case WRITE_16:
 705                         pCmd->flags.data_out = 1;
 706                         break;
 707                 }
 708                 pCmd->priv = ext = cmdext_get(vbus_ext);
 709                 HPT_ASSERT(ext);
 710                 ext->ccb = ccb;
 711                 pCmd->target = vd;
 712                 pCmd->done = os_cmddone;
 713                 pCmd->buildsgl = os_buildsgl;
 714
 715                 pCmd->psg = ext->psg;
 716
 717                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 718                         int idx;
 719                         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 720
 721                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 722                                 pCmd->flags.physical_sg = 1;
 723
 724                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 725                                 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
 726                                 pCmd->psg[idx].size = sgList[idx].ds_len;
 727                                 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 728                         }
 729
 730                         callout_reset(ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT,
 731                                       hpt_timeout, pCmd);
 732                         ldm_queue_cmd(pCmd);
 733                 }
 734                 else {
 735                         int error;
 736                         pCmd->flags.physical_sg = 1;
 737                         error = bus_dmamap_load(vbus_ext->io_dmat,
 738                                                 ext->dma_map,
 739                                                 ccb->csio.data_ptr, ccb->csio.dxfer_len,
 740                                                 hpt_io_dmamap_callback, pCmd,
 741                                         BUS_DMA_WAITOK
 742                                         );
 743                         KdPrint(("bus_dmamap_load return %d", error));
 744                         if (error && error!=EINPROGRESS) {
 745                                 os_printk("bus_dmamap_load error %d", error);
 746                                 cmdext_put(ext);
 747                                 ldm_free_cmds(pCmd);
 748                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 749                                 xpt_done(ccb);
 750                         }
 751                 }
 752                 return;
 753         }
 754
 755         default:
 756                 ccb->ccb_h.status = CAM_REQ_INVALID;
 757                 break;
 758         }
 759
 760         xpt_done(ccb);
 761         return;
 762 }
 763
 764 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 765 {
 766         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 767
 768         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 769
 770         switch (ccb->ccb_h.func_code) {
 771
 772         case XPT_SCSI_IO:
 773                 hpt_lock_vbus(vbus_ext);
 774                 hpt_scsi_io(vbus_ext, ccb);
 775                 hpt_unlock_vbus(vbus_ext);
 776                 return;
 777
 778         case XPT_RESET_BUS:
 779                 hpt_lock_vbus(vbus_ext);
 780                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 781                 hpt_unlock_vbus(vbus_ext);
 782                 break;
 783
 784         case XPT_GET_TRAN_SETTINGS:
 785         case XPT_SET_TRAN_SETTINGS:
 786                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 787                 break;
 788
 789         case XPT_CALC_GEOMETRY:
 790                 ccb->ccg.heads = 255;
 791                 ccb->ccg.secs_per_track = 63;
 792                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 793                 ccb->ccb_h.status = CAM_REQ_CMP;
 794                 break;
 795
 796         case XPT_PATH_INQ:
 797         {
 798                 struct ccb_pathinq *cpi = &ccb->cpi;
 799
 800                 cpi->version_num = 1;
 801                 cpi->hba_inquiry = PI_SDTR_ABLE;
 802                 cpi->target_sprt = 0;
 803                 cpi->hba_misc = PIM_NOBUSRESET;
 804                 cpi->hba_eng_cnt = 0;
 805                 cpi->max_target = osm_max_targets;
 806                 cpi->max_lun = 0;
 807                 cpi->unit_number = cam_sim_unit(sim);
 808                 cpi->bus_id = cam_sim_bus(sim);
 809                 cpi->initiator_id = osm_max_targets;
 810                 cpi->base_transfer_speed = 3300;
 811
 812                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 813                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 814                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 815                 cpi->transport = XPORT_SPI;
 816                 cpi->transport_version = 2;
 817                 cpi->protocol = PROTO_SCSI;
 818                 cpi->protocol_version = SCSI_REV_2;
 819                 cpi->maxio = HPT27XX_DFLTPHYS;
 820                 cpi->ccb_h.status = CAM_REQ_CMP;
 821                 break;
 822         }
 823
 824         default:
 825                 ccb->ccb_h.status = CAM_REQ_INVALID;
 826                 break;
 827         }
 828
 829         xpt_done(ccb);
 830         return;
 831 }
 832
 833 static void hpt_pci_intr(void *arg)
 834 {
 835         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 836         hpt_lock_vbus(vbus_ext);
 837         ldm_intr((PVBUS)vbus_ext->vbus);
 838         hpt_unlock_vbus(vbus_ext);
 839 }
 840
 841 static void hpt_poll(struct cam_sim *sim)
 842 {
 843         hpt_pci_intr(cam_sim_softc(sim));
 844 }
 845
 846 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 847 {
 848         KdPrint(("hpt_async"));
 849 }
 850
 851 static int hpt_shutdown(device_t dev)
 852 {
 853         KdPrint(("hpt_shutdown(dev=%p)", dev));
 854         return 0;
 855 }
 856
 857 static int hpt_detach(device_t dev)
 858 {
 859         /* we don't allow the driver to be unloaded. */
 860         return EBUSY;
 861 }
 862
 863 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 864 {
 865         arg->ioctl_cmnd = NULL;
 866         wakeup(arg);
 867 }
 868
 869 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 870 {
 871         ioctl_args->result = -1;
 872         ioctl_args->done = hpt_ioctl_done;
 873         ioctl_args->ioctl_cmnd = (void *)1;
 874
 875         hpt_lock_vbus(vbus_ext);
 876         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 877
 878         while (ioctl_args->ioctl_cmnd) {
 879                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
 880                         break;
 881                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 882                 __hpt_do_tasks(vbus_ext);
 883         }
 884
 885         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 886
 887         hpt_unlock_vbus(vbus_ext);
 888 }
 889
 890 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 891 {
 892         PVBUS vbus;
 893         PVBUS_EXT vbus_ext;
 894
 895         ldm_for_each_vbus(vbus, vbus_ext) {
 896                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 897                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 898                         return;
 899         }
 900 }
 901
 902 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 903         IOCTL_ARG arg;\
 904         arg.dwIoControlCode = code;\
 905         arg.lpInBuffer = inbuf;\
 906         arg.lpOutBuffer = outbuf;\
 907         arg.nInBufferSize = insize;\
 908         arg.nOutBufferSize = outsize;\
 909         arg.lpBytesReturned = NULL;\
 910         hpt_do_ioctl(&arg);\
 911         arg.result;\
 912 })
 913
 914 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 915
 916 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 917 {
 918         int i;
 919         HPT_U32 count = nMaxCount-1;
 920
 921         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 922                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 923                 return -1;
 924
 925         nMaxCount = (int)pIds[0];
 926         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 927         return nMaxCount;
 928 }
 929
 930 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 931 {
 932         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 933                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 934 }
 935
 936 /* not belong to this file logically, but we want to use ioctl interface */
 937 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 938 {
 939         LOGICAL_DEVICE_INFO_V3 devinfo;
 940         int i, result;
 941         DEVICEID param[2] = { id, 0 };
 942
 943         if (hpt_get_device_info_v3(id, &devinfo))
 944                 return -1;
 945
 946         if (devinfo.Type!=LDT_ARRAY)
 947                 return -1;
 948
 949         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 950                 param[1] = AS_REBUILD_ABORT;
 951         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 952                 param[1] = AS_VERIFY_ABORT;
 953         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 954                 param[1] = AS_INITIALIZE_ABORT;
 955         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 956                 param[1] = AS_TRANSFORM_ABORT;
 957         else
 958                 return -1;
 959
 960         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 961         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 962                                 param, sizeof(param), 0, 0);
 963
 964         for (i=0; i<devinfo.u.array.nDisk; i++)
 965                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 966                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 967
 968         return result;
 969 }
 970
 971 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 972 {
 973         DEVICEID ids[32];
 974         int i, count;
 975
 976         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 977
 978         for (i=0; i<count; i++)
 979                 __hpt_stop_tasks(vbus_ext, ids[i]);
 980 }
 981
 982 static  d_open_t        hpt_open;
 983 static  d_close_t       hpt_close;
 984 static  d_ioctl_t       hpt_ioctl;
 985 static  void            hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
 986 static  int             hpt_rescan_bus(void);
 987
 988 static struct dev_ops hpt_ops = {
 989         { driver_name, 0, 0 },
 990         .d_open =       hpt_open,
 991         .d_close =      hpt_close,
 992         .d_ioctl =      hpt_ioctl,
 993 };
 994
 995 static struct intr_config_hook hpt_ich;
 996
 997 /*
 998  * hpt_final_init will be called after all hpt_attach.
 999  */
1000 static void hpt_final_init(void *dummy)
1001 {
1002         int       i;
1003         PVBUS_EXT vbus_ext;
1004         PVBUS vbus;
1005         PHBA hba;
1006
1007         /* Clear the config hook */
1008         config_intrhook_disestablish(&hpt_ich);
1009
1010         /* allocate memory */
1011         i = 0;
1012         ldm_for_each_vbus(vbus, vbus_ext) {
1013                 if (hpt_alloc_mem(vbus_ext)) {
1014                         os_printk("out of memory");
1015                         return;
1016                 }
1017                 i++;
1018         }
1019
1020         if (!i) {
1021                         os_printk("no controller detected.");
1022                 return;
1023         }
1024
1025         /* initializing hardware */
1026         ldm_for_each_vbus(vbus, vbus_ext) {
1027                 /* make timer available here */
1028                 callout_init(&vbus_ext->timer);
1029                 if (hpt_init_vbus(vbus_ext)) {
1030                         os_printk("fail to initialize hardware");
1031                         break; /* FIXME */
1032                 }
1033         }
1034
1035         /* register CAM interface */
1036         ldm_for_each_vbus(vbus, vbus_ext) {
1037                 struct cam_devq *devq;
1038                 struct ccb_setasync *ccb;
1039
1040                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1041                 if (bus_dma_tag_create(NULL,/* parent */
1042                                 4,      /* alignment */
1043                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1044                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1045                                 BUS_SPACE_MAXADDR,      /* highaddr */
1046                                 NULL, NULL,             /* filter, filterarg */
1047                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1048                                 os_max_sg_descriptors,  /* nsegments */
1049                                 0x10000,        /* maxsegsize */
1050                                 BUS_DMA_WAITOK,         /* flags */
1051                                 &vbus_ext->io_dmat      /* tag */))
1052                 {
1053                         return ;
1054                 }
1055
1056                 for (i=0; i<os_max_queue_comm; i++) {
1057                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1058                         if (!ext) {
1059                                 os_printk("Can't alloc cmdext(%d)", i);
1060                                 return ;
1061                         }
1062                         ext->vbus_ext = vbus_ext;
1063                         ext->next = vbus_ext->cmdext_list;
1064                         vbus_ext->cmdext_list = ext;
1065
1066                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1067                                 os_printk("Can't create dma map(%d)", i);
1068                                 return ;
1069                         }
1070                 }
1071
1072                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1073                         os_printk("cam_simq_alloc failed");
1074                         return ;
1075                 }
1076
1077                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1078                                 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8,  devq);
1079                 cam_simq_release(devq);
1080
1081                 if (!vbus_ext->sim) {
1082                         os_printk("cam_sim_alloc failed");
1083                         return ;
1084                 }
1085
1086                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1087                         os_printk("xpt_bus_register failed");
1088                         cam_sim_free(vbus_ext->sim);
1089                         vbus_ext->sim = NULL;
1090                         return ;
1091                 }
1092
1093                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1094                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1095                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1096                 {
1097                         os_printk("xpt_create_path failed");
1098                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1099                         cam_sim_free(vbus_ext->sim);
1100                         vbus_ext->sim = NULL;
1101                         return ;
1102                 }
1103
1104                 ccb = &xpt_alloc_ccb()->csa;
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                 xpt_free_ccb(&ccb->ccb_h);
1112
1113                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1114                         int rid = 0;
1115                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1116                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1117                         {
1118                                 os_printk("can't allocate interrupt");
1119                                 return ;
1120                         }
1121
1122                         if (bus_setup_intr(hba->pcidev, hba->irq_res, 0,
1123                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1124                         {
1125                                 os_printk("can't set up interrupt");
1126                                 return ;
1127                         }
1128                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1129
1130                 }
1131
1132                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1133                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1134                 if (!vbus_ext->shutdown_eh)
1135                         os_printk("Shutdown event registration failed");
1136         }
1137
1138         ldm_for_each_vbus(vbus, vbus_ext) {
1139                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1140                 if (vbus_ext->tasks)
1141                         TASK_ENQUEUE(&vbus_ext->worker);
1142         }
1143
1144         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1145             S_IRUSR | S_IWUSR, driver_name);
1146 }
1147
1148 #if defined(KLD_MODULE)
1149
1150 typedef struct driverlink *driverlink_t;
1151 struct driverlink {
1152         kobj_class_t    driver;
1153         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1154 };
1155
1156 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1157
1158 struct devclass {
1159         TAILQ_ENTRY(devclass) link;
1160         devclass_t      parent;         /* parent in devclass hierarchy */
1161         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1162         char            *name;
1163         device_t        *devices;       /* array of devices indexed by unit */
1164         int             maxunit;        /* size of devices array */
1165 };
1166
1167 static void override_kernel_driver(void)
1168 {
1169         driverlink_t dl, dlfirst;
1170         driver_t *tmpdriver;
1171         devclass_t dc = devclass_find("pci");
1172
1173         if (dc){
1174                 dlfirst = TAILQ_FIRST(&dc->drivers);
1175                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1176                         if(strcmp(dl->driver->name, driver_name) == 0) {
1177                                 tmpdriver=dl->driver;
1178                                 dl->driver=dlfirst->driver;
1179                                 dlfirst->driver=tmpdriver;
1180                                 break;
1181                         }
1182                 }
1183         }
1184 }
1185
1186 #else
1187 #define override_kernel_driver()
1188 #endif
1189
1190 static void hpt_init(void *dummy)
1191 {
1192         if (bootverbose)
1193                 os_printk("%s %s", driver_name_long, driver_ver);
1194
1195         override_kernel_driver();
1196         init_config();
1197
1198         hpt_ich.ich_func = hpt_final_init;
1199         hpt_ich.ich_arg = NULL;
1200         hpt_ich.ich_desc = "hpt27xx";
1201         if (config_intrhook_establish(&hpt_ich) != 0) {
1202                 kprintf("%s: cannot establish configuration hook\n",
1203                     driver_name_long);
1204         }
1205
1206 }
1207 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1208
1209 /*
1210  * CAM driver interface
1211  */
1212 static device_method_t driver_methods[] = {
1213         /* Device interface */
1214         DEVMETHOD(device_probe,         hpt_probe),
1215         DEVMETHOD(device_attach,        hpt_attach),
1216         DEVMETHOD(device_detach,        hpt_detach),
1217         DEVMETHOD(device_shutdown,      hpt_shutdown),
1218         DEVMETHOD_END
1219 };
1220
1221 static driver_t hpt_pci_driver = {
1222         driver_name,
1223         driver_methods,
1224         sizeof(HBA)
1225 };
1226
1227 static devclass_t       hpt_devclass;
1228
1229 #ifndef TARGETNAME
1230 #error "no TARGETNAME found"
1231 #endif
1232
1233 /* use this to make TARGETNAME be expanded */
1234 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1235 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1236 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1237 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
1238 __MODULE_VERSION(TARGETNAME, 1);
1239 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1240
1241 typedef struct cdev * ioctl_dev_t;
1242
1243 typedef struct thread * ioctl_thread_t;
1244
1245 static int hpt_open(struct dev_open_args *ap)
1246 {
1247         return 0;
1248 }
1249
1250 static int hpt_close(struct dev_close_args *ap)
1251 {
1252         return 0;
1253 }
1254
1255 static int hpt_ioctl(struct dev_ioctl_args *ap)
1256 {
1257         u_long cmd = ap->a_cmd;
1258         caddr_t data = ap->a_data;
1259         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1260         IOCTL_ARG ioctl_args;
1261         HPT_U32 bytesReturned;
1262
1263         switch (cmd){
1264         case HPT_DO_IOCONTROL:
1265         {
1266                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1267                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1268                                 piop->dwIoControlCode,
1269                                 piop->lpInBuffer,
1270                                 piop->nInBufferSize,
1271                                 piop->lpOutBuffer,
1272                                 piop->nOutBufferSize));
1273
1274                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1275
1276                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1277                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1278                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1279                 ioctl_args.lpBytesReturned = &bytesReturned;
1280
1281                 if (ioctl_args.nInBufferSize) {
1282                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1283                         if (!ioctl_args.lpInBuffer)
1284                                 goto invalid;
1285                         if (copyin((void*)piop->lpInBuffer,
1286                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1287                                 goto invalid;
1288                 }
1289
1290                 if (ioctl_args.nOutBufferSize) {
1291                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1292                         if (!ioctl_args.lpOutBuffer)
1293                                 goto invalid;
1294                 }
1295
1296                 get_mplock();
1297
1298                 hpt_do_ioctl(&ioctl_args);
1299
1300                 rel_mplock();
1301
1302                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1303                         if (piop->nOutBufferSize) {
1304                                 if (copyout(ioctl_args.lpOutBuffer,
1305                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1306                                         goto invalid;
1307                         }
1308                         if (piop->lpBytesReturned) {
1309                                 if (copyout(&bytesReturned,
1310                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1311                                         goto invalid;
1312                         }
1313                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1314                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1315                         return 0;
1316                 }
1317 invalid:
1318                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1319                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1320                 return EFAULT;
1321         }
1322         return EFAULT;
1323         }
1324
1325         case HPT_SCAN_BUS:
1326         {
1327                 return hpt_rescan_bus();
1328         }
1329         default:
1330                 KdPrint(("invalid command!"));
1331                 return EFAULT;
1332         }
1333
1334 }
1335
1336 static int      hpt_rescan_bus(void)
1337 {
1338         struct cam_path         *path;
1339         union ccb                       *ccb;
1340         PVBUS                           vbus;
1341         PVBUS_EXT                       vbus_ext;
1342
1343         get_mplock();
1344
1345         ldm_for_each_vbus(vbus, vbus_ext) {
1346                 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vbus_ext->sim),
1347                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1348                         rel_mplock();
1349                         return(EIO);
1350                 }
1351                 ccb = xpt_alloc_ccb();
1352                 bzero(ccb, sizeof(union ccb));
1353                 xpt_setup_ccb(&ccb->ccb_h, path, 5);
1354                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1355                 ccb->ccb_h.cbfcnp = hpt_bus_scan_cb;
1356                 ccb->crcn.flags = CAM_FLAG_NONE;
1357                 xpt_action(ccb);
1358         }
1359
1360         rel_mplock();
1361
1362         return(0);
1363 }
1364
1365 static  void    hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
1366 {
1367         if (ccb->ccb_h.status != CAM_REQ_CMP)
1368                 KdPrint(("cam_scan_callback: failure status = %x",ccb->ccb_h.status));
1369         else
1370                 KdPrint(("Scan bus successfully!"));
1371
1372         xpt_free_path(ccb->ccb_h.path);
1373         xpt_free_ccb(&ccb->ccb_h);
1374 }