sys/dev/raid/hptrr/hptrr_osm_bsd.c

   1 /*
   2  * Copyright (c) HighPoint Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/dev/hptrr/hptrr_osm_bsd.c,v 1.10 2012/06/17 02:46:27 eadler Exp $
  27  */
  28
  29 #include <dev/raid/hptrr/hptrr_config.h>
  30 /* $Id: osm_bsd.c,v 1.27 2007/11/22 07:35:49 gmm Exp $
  31  *
  32  * HighPoint RAID Driver for FreeBSD
  33  * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
  34  */
  35 #include <dev/raid/hptrr/os_bsd.h>
  36 #include <dev/raid/hptrr/hptintf.h>
  37
  38 static int attach_generic = 0;
  39 TUNABLE_INT("hw.hptrr.attach_generic", &attach_generic);
  40
  41 static int hpt_probe(device_t dev)
  42 {
  43         PCI_ID pci_id;
  44         HIM *him;
  45         int i;
  46         PHBA hba;
  47
  48         /* Some of supported chips are used not only by HPT. */
  49         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
  50                 return (ENXIO);
  51         for (him = him_list; him; him = him->next) {
  52                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  53                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  54                                 (pci_get_device(dev) == pci_id.did)){
  55                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  56                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  57                                 ));
  58                                 device_set_desc(dev, him->name);
  59                                 hba = (PHBA)device_get_softc(dev);
  60                                 memset(hba, 0, sizeof(HBA));
  61                                 hba->ext_type = EXT_TYPE_HBA;
  62                                 hba->ldm_adapter.him = him;
  63                                 return 0;
  64                         }
  65                 }
  66         }
  67
  68         return (ENXIO);
  69 }
  70
  71 static int hpt_attach(device_t dev)
  72 {
  73         PHBA hba = (PHBA)device_get_softc(dev);
  74         HIM *him = hba->ldm_adapter.him;
  75         PCI_ID pci_id;
  76         HPT_UINT size;
  77         PVBUS vbus;
  78         PVBUS_EXT vbus_ext;
  79
  80         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  81
  82         pci_enable_busmaster(dev);
  83
  84         pci_id.vid = pci_get_vendor(dev);
  85         pci_id.did = pci_get_device(dev);
  86         pci_id.rev = pci_get_revid(dev);
  87
  88         size = him->get_adapter_size(&pci_id);
  89         hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
  90         if (!hba->ldm_adapter.him_handle)
  91                 return ENXIO;
  92
  93         hba->pcidev = dev;
  94         hba->pciaddr.tree = 0;
  95         hba->pciaddr.bus = pci_get_bus(dev);
  96         hba->pciaddr.device = pci_get_slot(dev);
  97         hba->pciaddr.function = pci_get_function(dev);
  98
  99         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 100                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 101                 return -1;
 102         }
 103
 104         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 105                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 106
 107         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 108                 size = ldm_get_vbus_size();
 109                 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 110                 if (!vbus_ext) {
 111                         kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 112                         return -1;
 113                 }
 114                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 115                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 116                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 117                 ldm_register_adapter(&hba->ldm_adapter);
 118         }
 119
 120         ldm_for_each_vbus(vbus, vbus_ext) {
 121                 if (hba->ldm_adapter.vbus==vbus) {
 122                         hba->vbus_ext = vbus_ext;
 123                         hba->next = vbus_ext->hba_list;
 124                         vbus_ext->hba_list = hba;
 125                         break;
 126                 }
 127         }
 128         return 0;
 129 }
 130
 131 /*
 132  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 133  * but there are some problems currently (alignment, etc).
 134  */
 135 static __inline void *__get_free_pages(int order)
 136 {
 137         /* don't use low memory - other devices may get starved */
 138         return contigmalloc(PAGE_SIZE<<order,
 139                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 140 }
 141
 142 static __inline void free_pages(void *p, int order)
 143 {
 144         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 145 }
 146
 147 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 148 {
 149         PHBA hba;
 150         struct freelist *f;
 151         HPT_UINT i;
 152         void **p;
 153
 154         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 155                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 156
 157         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 158
 159         for (f=vbus_ext->freelist_head; f; f=f->next) {
 160                 KdPrint(("%s: %d*%d=%d bytes",
 161                         f->tag, f->count, f->size, f->count*f->size));
 162                 for (i=0; i<f->count; i++) {
 163                         p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
 164                         if (!p) return (ENXIO);
 165                         *p = f->head;
 166                         f->head = p;
 167                 }
 168         }
 169
 170         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 171                 int order, size, j;
 172
 173                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 174
 175                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 176
 177                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 178                         f->tag, f->count, f->size, f->count*f->size, order));
 179                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 180
 181                 for (i=0; i<f->count;) {
 182                         p = (void **)__get_free_pages(order);
 183                         if (!p) return -1;
 184                         for (j = size/f->size; j && i<f->count; i++,j--) {
 185                                 *p = f->head;
 186                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 187                                 f->head = p;
 188                                 p = (void **)((unsigned long)p + f->size);
 189                         }
 190                 }
 191         }
 192
 193         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 194
 195         for (i=0; i<os_max_cache_pages; i++) {
 196                 p = (void **)__get_free_pages(0);
 197                 if (!p) return -1;
 198                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 199                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 200         }
 201
 202         return 0;
 203 }
 204
 205 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 206 {
 207         struct freelist *f;
 208         void *p;
 209         int i;
 210         BUS_ADDRESS bus;
 211
 212         for (f=vbus_ext->freelist_head; f; f=f->next) {
 213 #if DBG
 214                 if (f->count!=f->reserved_count) {
 215                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 216                 }
 217 #endif
 218                 while ((p=freelist_get(f)))
 219                         kfree(p, M_DEVBUF);
 220         }
 221
 222         for (i=0; i<os_max_cache_pages; i++) {
 223                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 224                 HPT_ASSERT(p);
 225                 free_pages(p, 0);
 226         }
 227
 228         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 229                 int order, size;
 230 #if DBG
 231                 if (f->count!=f->reserved_count) {
 232                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 233                 }
 234 #endif
 235                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 236
 237                 while ((p=freelist_get_dma(f, &bus))) {
 238                         if (order)
 239                                 free_pages(p, order);
 240                         else {
 241                         /* can't free immediately since other blocks in this page may still be in the list */
 242                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 243                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 244                         }
 245                 }
 246         }
 247
 248         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 249                 free_pages(p, 0);
 250 }
 251
 252 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 253 {
 254         PHBA hba;
 255
 256         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 257                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 258                         KdPrint(("fail to initialize %p", hba));
 259                         return -1;
 260                 }
 261
 262         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 263         return 0;
 264 }
 265
 266 static void hpt_flush_done(PCOMMAND pCmd)
 267 {
 268         PVDEV vd = pCmd->target;
 269
 270         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 271                 vd = vd->u.array.transform->target;
 272                 HPT_ASSERT(vd);
 273                 pCmd->target = vd;
 274                 pCmd->Result = RETURN_PENDING;
 275                 vdev_queue_cmd(pCmd);
 276                 return;
 277         }
 278
 279         *(int *)pCmd->priv = 1;
 280         wakeup(pCmd);
 281 }
 282
 283 /*
 284  * flush a vdev (without retry).
 285  */
 286 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 287 {
 288         PCOMMAND pCmd;
 289         int result = 0, done;
 290         HPT_UINT count;
 291
 292         KdPrint(("flusing dev %p", vd));
 293
 294         hpt_lock_vbus(vbus_ext);
 295
 296         if (mIsArray(vd->type) && vd->u.array.transform)
 297                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 298                                         vd->u.array.transform->target->cmds_per_request);
 299         else
 300                 count = vd->cmds_per_request;
 301
 302         pCmd = ldm_alloc_cmds(vd->vbus, count);
 303
 304         if (!pCmd) {
 305                 hpt_unlock_vbus(vbus_ext);
 306                 return -1;
 307         }
 308
 309         pCmd->type = CMD_TYPE_FLUSH;
 310         pCmd->flags.hard_flush = 1;
 311         pCmd->target = vd;
 312         pCmd->done = hpt_flush_done;
 313         done = 0;
 314         pCmd->priv = &done;
 315
 316         ldm_queue_cmd(pCmd);
 317
 318         if (!done) {
 319                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
 320                         ldm_reset_vbus(vd->vbus);
 321                 }
 322         }
 323
 324         KdPrint(("flush result %d", pCmd->Result));
 325
 326         if (pCmd->Result!=RETURN_SUCCESS)
 327                 result = -1;
 328
 329         ldm_free_cmds(pCmd);
 330
 331         hpt_unlock_vbus(vbus_ext);
 332
 333         return result;
 334 }
 335
 336 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 337 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 338 {
 339         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 340         PHBA hba;
 341         int i;
 342
 343         KdPrint(("hpt_shutdown_vbus"));
 344
 345         /* stop all ctl tasks and disable the worker taskqueue */
 346         hpt_stop_tasks(vbus_ext);
 347         vbus_ext->worker.ta_context = 0;
 348
 349         /* flush devices */
 350         for (i=0; i<osm_max_targets; i++) {
 351                 PVDEV vd = ldm_find_target(vbus, i);
 352                 if (vd) {
 353                         /* retry once */
 354                         if (hpt_flush_vdev(vbus_ext, vd))
 355                                 hpt_flush_vdev(vbus_ext, vd);
 356                 }
 357         }
 358
 359         hpt_lock_vbus(vbus_ext);
 360         ldm_shutdown(vbus);
 361         hpt_unlock_vbus(vbus_ext);
 362
 363         ldm_release_vbus(vbus);
 364
 365         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 366                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 367
 368         hpt_free_mem(vbus_ext);
 369
 370         while ((hba=vbus_ext->hba_list)) {
 371                 vbus_ext->hba_list = hba->next;
 372                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 373         }
 374
 375         kfree(vbus_ext, M_DEVBUF);
 376         KdPrint(("hpt_shutdown_vbus done"));
 377 }
 378
 379 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 380 {
 381         OSM_TASK *tasks;
 382
 383         tasks = vbus_ext->tasks;
 384         vbus_ext->tasks = 0;
 385
 386         while (tasks) {
 387                 OSM_TASK *t = tasks;
 388                 tasks = t->next;
 389                 t->next = 0;
 390                 t->func(vbus_ext->vbus, t->data);
 391         }
 392 }
 393
 394 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 395 {
 396         if(vbus_ext){
 397                 hpt_lock_vbus(vbus_ext);
 398                 __hpt_do_tasks(vbus_ext);
 399                 hpt_unlock_vbus(vbus_ext);
 400         }
 401 }
 402
 403 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 404 static void hpt_poll(struct cam_sim *sim);
 405 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 406 static void hpt_pci_intr(void *arg);
 407
 408 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 409 {
 410         POS_CMDEXT p = vbus_ext->cmdext_list;
 411         if (p)
 412                 vbus_ext->cmdext_list = p->next;
 413         return p;
 414 }
 415
 416 static __inline void cmdext_put(POS_CMDEXT p)
 417 {
 418         p->next = p->vbus_ext->cmdext_list;
 419         p->vbus_ext->cmdext_list = p;
 420 }
 421
 422 static void hpt_timeout(void *arg)
 423 {
 424         PCOMMAND pCmd = (PCOMMAND)arg;
 425         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 426
 427         KdPrint(("pCmd %p timeout", pCmd));
 428
 429         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 430 }
 431
 432 static void os_cmddone(PCOMMAND pCmd)
 433 {
 434         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 435         union ccb *ccb = ext->ccb;
 436
 437         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 438
 439         callout_stop(&ccb->ccb_h.timeout_ch);
 440
 441         switch(pCmd->Result) {
 442         case RETURN_SUCCESS:
 443                 ccb->ccb_h.status = CAM_REQ_CMP;
 444                 break;
 445         case RETURN_BAD_DEVICE:
 446                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 447                 break;
 448         case RETURN_DEVICE_BUSY:
 449                 ccb->ccb_h.status = CAM_BUSY;
 450                 break;
 451         case RETURN_INVALID_REQUEST:
 452                 ccb->ccb_h.status = CAM_REQ_INVALID;
 453                 break;
 454         case RETURN_SELECTION_TIMEOUT:
 455                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 456                 break;
 457         case RETURN_RETRY:
 458                 ccb->ccb_h.status = CAM_BUSY;
 459                 break;
 460         default:
 461                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 462                 break;
 463         }
 464
 465         if (pCmd->flags.data_in) {
 466                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 467         }
 468         else if (pCmd->flags.data_out) {
 469                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 470         }
 471
 472         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 473
 474         cmdext_put(ext);
 475         ldm_free_cmds(pCmd);
 476         xpt_done(ccb);
 477 }
 478
 479 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 480 {
 481         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 482         union ccb *ccb = ext->ccb;
 483         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 484         int idx;
 485
 486         if(logical)     {
 487                 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
 488                         panic("physical address unsupported");
 489
 490                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 491                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 492                                 panic("physical address unsupported");
 493
 494                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 495                                 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
 496                                 pSg[idx].size = sgList[idx].ds_len;
 497                                 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 498                         }
 499                 }
 500                 else {
 501                         os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 502                         pSg->size = ccb->csio.dxfer_len;
 503                         pSg->eot = 1;
 504                 }
 505                 return TRUE;
 506         }
 507
 508         /* since we have provided physical sg, nobody will ask us to build physical sg */
 509         HPT_ASSERT(0);
 510         return FALSE;
 511 }
 512
 513 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 514 {
 515         PCOMMAND pCmd = (PCOMMAND)arg;
 516         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 517         PSG psg = pCmd->psg;
 518         int idx;
 519
 520         HPT_ASSERT(pCmd->flags.physical_sg);
 521
 522         if (error || nsegs == 0)
 523                 panic("busdma error");
 524
 525         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 526
 527         for (idx = 0; idx < nsegs; idx++, psg++) {
 528                 psg->addr.bus = segs[idx].ds_addr;
 529                 psg->size = segs[idx].ds_len;
 530                 psg->eot = 0;
 531         }
 532         psg[-1].eot = 1;
 533
 534         if (pCmd->flags.data_in) {
 535                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
 536         }
 537         else if (pCmd->flags.data_out) {
 538                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
 539         }
 540
 541         callout_reset(&ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 542         ldm_queue_cmd(pCmd);
 543 }
 544
 545 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 546 {
 547         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 548         PVDEV vd;
 549         PCOMMAND pCmd;
 550         POS_CMDEXT ext;
 551         HPT_U8 *cdb;
 552
 553         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 554                 cdb = ccb->csio.cdb_io.cdb_ptr;
 555         else
 556                 cdb = ccb->csio.cdb_io.cdb_bytes;
 557
 558         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 559                 ccb,
 560                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 561                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 562         ));
 563
 564         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 565         if (ccb->ccb_h.target_lun != 0 ||
 566                 ccb->ccb_h.target_id >= osm_max_targets ||
 567                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 568         {
 569                 ccb->ccb_h.status = CAM_TID_INVALID;
 570                 xpt_done(ccb);
 571                 return;
 572         }
 573
 574         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 575
 576         if (!vd) {
 577                 ccb->ccb_h.status = CAM_TID_INVALID;
 578                 xpt_done(ccb);
 579                 return;
 580         }
 581
 582         switch (cdb[0]) {
 583         case TEST_UNIT_READY:
 584         case START_STOP_UNIT:
 585         case SYNCHRONIZE_CACHE:
 586                 ccb->ccb_h.status = CAM_REQ_CMP;
 587                 break;
 588
 589         case INQUIRY:
 590                 {
 591                         PINQUIRYDATA inquiryData;
 592                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 593                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 594
 595                         inquiryData->AdditionalLength = 31;
 596                         inquiryData->CommandQueue = 1;
 597                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 598                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 599
 600                         if (vd->target_id / 10) {
 601                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 602                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 603                         }
 604                         else
 605                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 606
 607                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 608
 609                         ccb->ccb_h.status = CAM_REQ_CMP;
 610                 }
 611                 break;
 612
 613         case READ_CAPACITY:
 614         {
 615                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 616                 HPT_U32 cap;
 617
 618                 if (vd->capacity>0xfffffffful)
 619                         cap = 0xfffffffful;
 620                 else
 621                         cap = vd->capacity - 1;
 622
 623                 rbuf[0] = (HPT_U8)(cap>>24);
 624                 rbuf[1] = (HPT_U8)(cap>>16);
 625                 rbuf[2] = (HPT_U8)(cap>>8);
 626                 rbuf[3] = (HPT_U8)cap;
 627                 rbuf[4] = 0;
 628                 rbuf[5] = 0;
 629                 rbuf[6] = 2;
 630                 rbuf[7] = 0;
 631
 632                 ccb->ccb_h.status = CAM_REQ_CMP;
 633                 break;
 634         }
 635
 636         case SERVICE_ACTION_IN:
 637         {
 638                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 639                 HPT_U64 cap = vd->capacity - 1;
 640
 641                 rbuf[0] = (HPT_U8)(cap>>56);
 642                 rbuf[1] = (HPT_U8)(cap>>48);
 643                 rbuf[2] = (HPT_U8)(cap>>40);
 644                 rbuf[3] = (HPT_U8)(cap>>32);
 645                 rbuf[4] = (HPT_U8)(cap>>24);
 646                 rbuf[5] = (HPT_U8)(cap>>16);
 647                 rbuf[6] = (HPT_U8)(cap>>8);
 648                 rbuf[7] = (HPT_U8)cap;
 649                 rbuf[8] = 0;
 650                 rbuf[9] = 0;
 651                 rbuf[10] = 2;
 652                 rbuf[11] = 0;
 653
 654                 ccb->ccb_h.status = CAM_REQ_CMP;
 655                 break;
 656         }
 657
 658         case READ_6:
 659         case READ_10:
 660         case READ_16:
 661         case WRITE_6:
 662         case WRITE_10:
 663         case WRITE_16:
 664         case 0x13:
 665         case 0x2f:
 666         {
 667                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 668                 if(!pCmd){
 669                         KdPrint(("Failed to allocate command!"));
 670                         ccb->ccb_h.status = CAM_BUSY;
 671                         break;
 672                 }
 673
 674                 switch (cdb[0]) {
 675                 case READ_6:
 676                 case WRITE_6:
 677                 case 0x13:
 678                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 679                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 680                         break;
 681                 case READ_16:
 682                 case WRITE_16:
 683                 {
 684                         HPT_U64 block =
 685                                 ((HPT_U64)cdb[2]<<56) |
 686                                 ((HPT_U64)cdb[3]<<48) |
 687                                 ((HPT_U64)cdb[4]<<40) |
 688                                 ((HPT_U64)cdb[5]<<32) |
 689                                 ((HPT_U64)cdb[6]<<24) |
 690                                 ((HPT_U64)cdb[7]<<16) |
 691                                 ((HPT_U64)cdb[8]<<8) |
 692                                 ((HPT_U64)cdb[9]);
 693                         pCmd->uCmd.Ide.Lba = block;
 694                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 695                         break;
 696                 }
 697
 698                 default:
 699                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 700                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 701                         break;
 702                 }
 703
 704                 switch (cdb[0]) {
 705                 case READ_6:
 706                 case READ_10:
 707                 case READ_16:
 708                         pCmd->flags.data_in = 1;
 709                         break;
 710                 case WRITE_6:
 711                 case WRITE_10:
 712                 case WRITE_16:
 713                         pCmd->flags.data_out = 1;
 714                         break;
 715                 }
 716                 pCmd->priv = ext = cmdext_get(vbus_ext);
 717                 HPT_ASSERT(ext);
 718                 ext->ccb = ccb;
 719                 pCmd->target = vd;
 720                 pCmd->done = os_cmddone;
 721                 pCmd->buildsgl = os_buildsgl;
 722
 723                 pCmd->psg = ext->psg;
 724
 725                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 726                         int idx;
 727                         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 728
 729                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 730                                 pCmd->flags.physical_sg = 1;
 731
 732                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 733                                 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
 734                                 pCmd->psg[idx].size = sgList[idx].ds_len;
 735                                 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 736                         }
 737
 738                         callout_reset(&ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 739                         ldm_queue_cmd(pCmd);
 740                 }
 741                 else {
 742                         int error;
 743                         pCmd->flags.physical_sg = 1;
 744                         error = bus_dmamap_load(vbus_ext->io_dmat,
 745                                                 ext->dma_map,
 746                                                 ccb->csio.data_ptr, ccb->csio.dxfer_len,
 747                                                 hpt_io_dmamap_callback, pCmd,
 748                                         BUS_DMA_WAITOK
 749                                         );
 750                         KdPrint(("bus_dmamap_load return %d", error));
 751                         if (error && error!=EINPROGRESS) {
 752                                 os_printk("bus_dmamap_load error %d", error);
 753                                 cmdext_put(ext);
 754                                 ldm_free_cmds(pCmd);
 755                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 756                                 xpt_done(ccb);
 757                         }
 758                 }
 759                 return;
 760         }
 761
 762         default:
 763                 ccb->ccb_h.status = CAM_REQ_INVALID;
 764                 break;
 765         }
 766
 767         xpt_done(ccb);
 768         return;
 769 }
 770
 771 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 772 {
 773         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 774
 775         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 776
 777         switch (ccb->ccb_h.func_code) {
 778
 779         case XPT_SCSI_IO:
 780                 hpt_lock_vbus(vbus_ext);
 781                 hpt_scsi_io(vbus_ext, ccb);
 782                 hpt_unlock_vbus(vbus_ext);
 783                 return;
 784
 785         case XPT_RESET_BUS:
 786                 hpt_lock_vbus(vbus_ext);
 787                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 788                 hpt_unlock_vbus(vbus_ext);
 789                 break;
 790
 791         case XPT_GET_TRAN_SETTINGS:
 792         case XPT_SET_TRAN_SETTINGS:
 793                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 794                 break;
 795
 796         case XPT_CALC_GEOMETRY:
 797                 cam_calc_geometry(&ccb->ccg, 1);
 798                 break;
 799
 800         case XPT_PATH_INQ:
 801         {
 802                 struct ccb_pathinq *cpi = &ccb->cpi;
 803
 804                 cpi->version_num = 1;
 805                 cpi->hba_inquiry = PI_SDTR_ABLE;
 806                 cpi->target_sprt = 0;
 807                 cpi->hba_misc = PIM_NOBUSRESET;
 808                 cpi->hba_eng_cnt = 0;
 809                 cpi->max_target = osm_max_targets;
 810                 cpi->max_lun = 0;
 811                 cpi->unit_number = cam_sim_unit(sim);
 812                 cpi->bus_id = cam_sim_bus(sim);
 813                 cpi->initiator_id = osm_max_targets;
 814                 cpi->base_transfer_speed = 3300;
 815
 816                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 817                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 818                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 819                 cpi->transport = XPORT_SPI;
 820                 cpi->transport_version = 2;
 821                 cpi->protocol = PROTO_SCSI;
 822                 cpi->protocol_version = SCSI_REV_2;
 823                 cpi->maxio = HPTRR_DFLTPHYS;
 824                 cpi->ccb_h.status = CAM_REQ_CMP;
 825                 break;
 826         }
 827
 828         default:
 829                 ccb->ccb_h.status = CAM_REQ_INVALID;
 830                 break;
 831         }
 832
 833         xpt_done(ccb);
 834         return;
 835 }
 836
 837 static void hpt_pci_intr(void *arg)
 838 {
 839         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 840         hpt_lock_vbus(vbus_ext);
 841         ldm_intr((PVBUS)vbus_ext->vbus);
 842         hpt_unlock_vbus(vbus_ext);
 843 }
 844
 845 static void hpt_poll(struct cam_sim *sim)
 846 {
 847         hpt_pci_intr(cam_sim_softc(sim));
 848 }
 849
 850 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 851 {
 852         KdPrint(("hpt_async"));
 853 }
 854
 855 static int hpt_shutdown(device_t dev)
 856 {
 857         KdPrint(("hpt_shutdown(dev=%p)", dev));
 858         return 0;
 859 }
 860
 861 static int hpt_detach(device_t dev)
 862 {
 863         /* we don't allow the driver to be unloaded. */
 864         return EBUSY;
 865 }
 866
 867 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 868 {
 869         arg->ioctl_cmnd = 0;
 870         wakeup(arg);
 871 }
 872
 873 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 874 {
 875         ioctl_args->result = -1;
 876         ioctl_args->done = hpt_ioctl_done;
 877         ioctl_args->ioctl_cmnd = (void *)1;
 878
 879         hpt_lock_vbus(vbus_ext);
 880         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 881
 882         while (ioctl_args->ioctl_cmnd) {
 883                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
 884                         break;
 885                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 886                 __hpt_do_tasks(vbus_ext);
 887         }
 888
 889         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 890
 891         hpt_unlock_vbus(vbus_ext);
 892 }
 893
 894 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 895 {
 896         PVBUS vbus;
 897         PVBUS_EXT vbus_ext;
 898
 899         ldm_for_each_vbus(vbus, vbus_ext) {
 900                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 901                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 902                         return;
 903         }
 904 }
 905
 906 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 907         IOCTL_ARG arg;\
 908         arg.dwIoControlCode = code;\
 909         arg.lpInBuffer = inbuf;\
 910         arg.lpOutBuffer = outbuf;\
 911         arg.nInBufferSize = insize;\
 912         arg.nOutBufferSize = outsize;\
 913         arg.lpBytesReturned = 0;\
 914         hpt_do_ioctl(&arg);\
 915         arg.result;\
 916 })
 917
 918 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 919
 920 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 921 {
 922         int i;
 923         HPT_U32 count = nMaxCount-1;
 924
 925         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 926                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 927                 return -1;
 928
 929         nMaxCount = (int)pIds[0];
 930         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 931         return nMaxCount;
 932 }
 933
 934 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 935 {
 936         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 937                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 938 }
 939
 940 /* not belong to this file logically, but we want to use ioctl interface */
 941 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 942 {
 943         LOGICAL_DEVICE_INFO_V3 devinfo;
 944         int i, result;
 945         DEVICEID param[2] = { id, 0 };
 946
 947         if (hpt_get_device_info_v3(id, &devinfo))
 948                 return -1;
 949
 950         if (devinfo.Type!=LDT_ARRAY)
 951                 return -1;
 952
 953         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 954                 param[1] = AS_REBUILD_ABORT;
 955         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 956                 param[1] = AS_VERIFY_ABORT;
 957         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 958                 param[1] = AS_INITIALIZE_ABORT;
 959         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 960                 param[1] = AS_TRANSFORM_ABORT;
 961         else
 962                 return -1;
 963
 964         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 965         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 966                                 param, sizeof(param), 0, 0);
 967
 968         for (i=0; i<devinfo.u.array.nDisk; i++)
 969                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 970                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 971
 972         return result;
 973 }
 974
 975 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 976 {
 977         DEVICEID ids[32];
 978         int i, count;
 979
 980         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 981
 982         for (i=0; i<count; i++)
 983                 __hpt_stop_tasks(vbus_ext, ids[i]);
 984 }
 985
 986 static  d_open_t        hpt_open;
 987 static  d_close_t       hpt_close;
 988 static  d_ioctl_t       hpt_ioctl;
 989 static  int             hpt_rescan_bus(void);
 990 static  void            hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb);
 991
 992 static struct dev_ops hpt_ops = {
 993         { driver_name, 0, 0 },
 994         .d_open =       hpt_open,
 995         .d_close =      hpt_close,
 996         .d_ioctl =      hpt_ioctl,
 997 };
 998
 999 static struct intr_config_hook hpt_ich;
1000
1001 /*
1002  * hpt_final_init will be called after all hpt_attach.
1003  */
1004 static void hpt_final_init(void *dummy)
1005 {
1006         int       i;
1007         PVBUS_EXT vbus_ext;
1008         PVBUS vbus;
1009         PHBA hba;
1010
1011         /* Clear the config hook */
1012         config_intrhook_disestablish(&hpt_ich);
1013
1014         /* allocate memory */
1015         i = 0;
1016         ldm_for_each_vbus(vbus, vbus_ext) {
1017                 if (hpt_alloc_mem(vbus_ext)) {
1018                         os_printk("out of memory");
1019                         return;
1020                 }
1021                 i++;
1022         }
1023
1024         if (!i) {
1025                 if (bootverbose)
1026                         os_printk("no controller detected.");
1027                 return;
1028         }
1029
1030         /* initializing hardware */
1031         ldm_for_each_vbus(vbus, vbus_ext) {
1032                 /* make timer available here */
1033                 callout_init(&vbus_ext->timer);
1034                 if (hpt_init_vbus(vbus_ext)) {
1035                         os_printk("fail to initialize hardware");
1036                         break; /* FIXME */
1037                 }
1038         }
1039
1040         /* register CAM interface */
1041         ldm_for_each_vbus(vbus, vbus_ext) {
1042                 struct cam_devq *devq;
1043                 struct ccb_setasync     ccb;
1044
1045                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1046                 if (bus_dma_tag_create(NULL,/* parent */
1047                                 4,      /* alignment */
1048                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1049                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1050                                 BUS_SPACE_MAXADDR,      /* highaddr */
1051                                 NULL, NULL,             /* filter, filterarg */
1052                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1053                                 os_max_sg_descriptors,  /* nsegments */
1054                                 0x10000,        /* maxsegsize */
1055                                 BUS_DMA_WAITOK,         /* flags */
1056                                 &vbus_ext->io_dmat      /* tag */))
1057                 {
1058                         return ;
1059                 }
1060
1061                 for (i=0; i<os_max_queue_comm; i++) {
1062                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1063                         if (!ext) {
1064                                 os_printk("Can't alloc cmdext(%d)", i);
1065                                 return ;
1066                         }
1067                         ext->vbus_ext = vbus_ext;
1068                         ext->next = vbus_ext->cmdext_list;
1069                         vbus_ext->cmdext_list = ext;
1070
1071                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1072                                 os_printk("Can't create dma map(%d)", i);
1073                                 return ;
1074                         }
1075                 }
1076
1077                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1078                         os_printk("cam_simq_alloc failed");
1079                         return ;
1080                 }
1081
1082                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1083                                 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8,  devq);
1084
1085                 if (!vbus_ext->sim) {
1086                         os_printk("cam_sim_alloc failed");
1087                         cam_simq_release(devq);
1088                         return ;
1089                 }
1090                 cam_simq_release(devq);
1091
1092                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1093                         os_printk("xpt_bus_register failed");
1094                         cam_sim_free(vbus_ext->sim);
1095                         vbus_ext->sim = NULL;
1096                         return ;
1097                 }
1098
1099                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1100                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1101                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1102                 {
1103                         os_printk("xpt_create_path failed");
1104                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1105                         cam_sim_free(vbus_ext->sim);
1106                         vbus_ext->sim = NULL;
1107                         return ;
1108                 }
1109
1110                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1111                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1112                 ccb.event_enable = AC_LOST_DEVICE;
1113                 ccb.callback = hpt_async;
1114                 ccb.callback_arg = vbus_ext;
1115                 xpt_action((union ccb *)&ccb);
1116
1117                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1118                         int rid = 0;
1119                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1120                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1121                         {
1122                                 os_printk("can't allocate interrupt");
1123                                 return ;
1124                         }
1125
1126                         if (bus_setup_intr(hba->pcidev, hba->irq_res, 0,
1127                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1128                         {
1129                                 os_printk("can't set up interrupt");
1130                                 return ;
1131                         }
1132                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1133                 }
1134
1135                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1136                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1137                 if (!vbus_ext->shutdown_eh)
1138                         os_printk("Shutdown event registration failed");
1139         }
1140
1141         ldm_for_each_vbus(vbus, vbus_ext) {
1142                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1143                 if (vbus_ext->tasks)
1144                         TASK_ENQUEUE(&vbus_ext->worker);
1145         }
1146
1147         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1148             S_IRUSR | S_IWUSR, "%s", driver_name);
1149 }
1150
1151 #if defined(KLD_MODULE)
1152
1153 typedef struct driverlink *driverlink_t;
1154 struct driverlink {
1155         kobj_class_t    driver;
1156         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1157 };
1158
1159 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1160
1161 struct devclass {
1162         TAILQ_ENTRY(devclass) link;
1163         devclass_t      parent;         /* parent in devclass hierarchy */
1164         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1165         char            *name;
1166         device_t        *devices;       /* array of devices indexed by unit */
1167         int             maxunit;        /* size of devices array */
1168 };
1169
1170 static void override_kernel_driver(void)
1171 {
1172         driverlink_t dl, dlfirst;
1173         driver_t *tmpdriver;
1174         devclass_t dc = devclass_find("pci");
1175
1176         if (dc){
1177                 dlfirst = TAILQ_FIRST(&dc->drivers);
1178                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1179                         if(strcmp(dl->driver->name, driver_name) == 0) {
1180                                 tmpdriver=dl->driver;
1181                                 dl->driver=dlfirst->driver;
1182                                 dlfirst->driver=tmpdriver;
1183                                 break;
1184                         }
1185                 }
1186         }
1187 }
1188
1189 #else
1190 #define override_kernel_driver()
1191 #endif
1192
1193 static void hpt_init(void *dummy)
1194 {
1195         if (bootverbose)
1196                 os_printk("%s %s", driver_name_long, driver_ver);
1197
1198         override_kernel_driver();
1199         init_config();
1200
1201         hpt_ich.ich_func = hpt_final_init;
1202         hpt_ich.ich_arg = NULL;
1203         if (config_intrhook_establish(&hpt_ich) != 0) {
1204                 kprintf("%s: cannot establish configuration hook\n",
1205                     driver_name_long);
1206         }
1207
1208 }
1209 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1210
1211 /*
1212  * CAM driver interface
1213  */
1214 static device_method_t driver_methods[] = {
1215         /* Device interface */
1216         DEVMETHOD(device_probe,         hpt_probe),
1217         DEVMETHOD(device_attach,        hpt_attach),
1218         DEVMETHOD(device_detach,        hpt_detach),
1219         DEVMETHOD(device_shutdown,      hpt_shutdown),
1220         { 0, 0 }
1221 };
1222
1223 static driver_t hpt_pci_driver = {
1224         driver_name,
1225         driver_methods,
1226         sizeof(HBA)
1227 };
1228
1229 static devclass_t       hpt_devclass;
1230
1231 #ifndef TARGETNAME
1232 #error "no TARGETNAME found"
1233 #endif
1234
1235 /* use this to make TARGETNAME be expanded */
1236 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1237 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1238 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1239 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1240 __MODULE_VERSION(TARGETNAME, 1);
1241 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1242
1243 typedef struct cdev * ioctl_dev_t;
1244
1245 typedef struct thread * ioctl_thread_t;
1246
1247 static int hpt_open(struct dev_open_args *ap)
1248 {
1249         return 0;
1250 }
1251
1252 static int hpt_close(struct dev_close_args *ap)
1253 {
1254         return 0;
1255 }
1256
1257 static int hpt_ioctl(struct dev_ioctl_args *ap)
1258 {
1259         u_long cmd = ap->a_cmd;
1260         caddr_t data = ap->a_data;
1261         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1262         IOCTL_ARG ioctl_args;
1263         HPT_U32 bytesReturned;
1264
1265         switch (cmd){
1266         case HPT_DO_IOCONTROL:
1267         {
1268                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1269                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1270                                 piop->dwIoControlCode,
1271                                 piop->lpInBuffer,
1272                                 piop->nInBufferSize,
1273                                 piop->lpOutBuffer,
1274                                 piop->nOutBufferSize));
1275
1276                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1277
1278                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1279                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1280                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1281                 ioctl_args.lpBytesReturned = &bytesReturned;
1282
1283                 if (ioctl_args.nInBufferSize) {
1284                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1285                         if (!ioctl_args.lpInBuffer)
1286                                 goto invalid;
1287                         if (copyin((void*)piop->lpInBuffer,
1288                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1289                                 goto invalid;
1290                 }
1291
1292                 if (ioctl_args.nOutBufferSize) {
1293                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1294                         if (!ioctl_args.lpOutBuffer)
1295                                 goto invalid;
1296                 }
1297
1298                 get_mplock();
1299
1300                 hpt_do_ioctl(&ioctl_args);
1301
1302                 rel_mplock();
1303
1304                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1305                         if (piop->nOutBufferSize) {
1306                                 if (copyout(ioctl_args.lpOutBuffer,
1307                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1308                                         goto invalid;
1309                         }
1310                         if (piop->lpBytesReturned) {
1311                                 if (copyout(&bytesReturned,
1312                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1313                                         goto invalid;
1314                         }
1315                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1316                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1317                         return 0;
1318                 }
1319 invalid:
1320                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1321                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1322                 return EFAULT;
1323         }
1324         return EFAULT;
1325         }
1326
1327         case HPT_SCAN_BUS:
1328         {
1329                 return hpt_rescan_bus();
1330         }
1331         default:
1332                 KdPrint(("invalid command!"));
1333                 return EFAULT;
1334         }
1335
1336 }
1337
1338 static void     hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb)
1339 {
1340         xpt_free_path(ccb->ccb_h.path);
1341         xpt_free_ccb(ccb);
1342 }
1343
1344 static int      hpt_rescan_bus(void)
1345 {
1346         union ccb                       *ccb;
1347         PVBUS                           vbus;
1348         PVBUS_EXT                       vbus_ext;
1349
1350         get_mplock();
1351
1352         ldm_for_each_vbus(vbus, vbus_ext) {
1353                 if ((ccb = xpt_alloc_ccb()) == NULL)
1354                         return(ENOMEM);
1355                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1356                     cam_sim_path(vbus_ext->sim),
1357                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1358                         xpt_free_ccb(ccb);
1359                         return(EIO);
1360                 }
1361
1362                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
1363                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1364                 ccb->ccb_h.cbfcnp = hpt_rescan_callback;
1365                 ccb->crcn.flags = CAM_FLAG_NONE;
1366                 xpt_action(ccb); /* scan is now in progress */
1367         }
1368
1369         return(0);
1370 }