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: head/sys/dev/hptrr/hptrr_osm_bsd.c 313554 2017-02-10 15:18:41Z pfg $
  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 HIM *hpt_match(device_t dev)
  42 {
  43         PCI_ID pci_id;
  44         int i;
  45         HIM *him;
  46
  47         /* Some of supported chips are used not only by HPT. */
  48         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
  49                 return (NULL);
  50         for (him = him_list; him; him = him->next) {
  51                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  52                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  53                                 (pci_get_device(dev) == pci_id.did)){
  54                                 return (him);
  55                         }
  56                 }
  57         }
  58         return (NULL);
  59 }
  60
  61 static int hpt_probe(device_t dev)
  62 {
  63         HIM *him;
  64
  65         him = hpt_match(dev);
  66         if (him != NULL) {
  67                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  68                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  69                             ));
  70                 device_set_desc(dev, him->name);
  71                 return (BUS_PROBE_DEFAULT);
  72         }
  73
  74         return (ENXIO);
  75 }
  76
  77 static int hpt_attach(device_t dev)
  78 {
  79         PHBA hba = (PHBA)device_get_softc(dev);
  80         HIM *him;
  81         PCI_ID pci_id;
  82         HPT_UINT size;
  83         PVBUS vbus;
  84         PVBUS_EXT vbus_ext;
  85
  86         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  87
  88         him = hpt_match(dev);
  89         hba->ext_type = EXT_TYPE_HBA;
  90         hba->ldm_adapter.him = him;
  91
  92         pci_enable_busmaster(dev);
  93
  94         pci_id.vid = pci_get_vendor(dev);
  95         pci_id.did = pci_get_device(dev);
  96         pci_id.rev = pci_get_revid(dev);
  97
  98         size = him->get_adapter_size(&pci_id);
  99         hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
 100
 101         hba->pcidev = dev;
 102         hba->pciaddr.tree = 0;
 103         hba->pciaddr.bus = pci_get_bus(dev);
 104         hba->pciaddr.device = pci_get_slot(dev);
 105         hba->pciaddr.function = pci_get_function(dev);
 106
 107         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
 108                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 109                 return ENXIO;
 110         }
 111
 112         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
 113                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
 114
 115         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 116                 size = ldm_get_vbus_size();
 117                 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK |
 118                     M_ZERO);
 119                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 120                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 121                 ldm_register_adapter(&hba->ldm_adapter);
 122         }
 123
 124         ldm_for_each_vbus(vbus, vbus_ext) {
 125                 if (hba->ldm_adapter.vbus==vbus) {
 126                         hba->vbus_ext = vbus_ext;
 127                         hba->next = vbus_ext->hba_list;
 128                         vbus_ext->hba_list = hba;
 129                         break;
 130                 }
 131         }
 132         return 0;
 133 }
 134
 135 /*
 136  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 137  * but there are some problems currently (alignment, etc).
 138  */
 139 static __inline void *__get_free_pages(int order)
 140 {
 141         /* don't use low memory - other devices may get starved */
 142         return contigmalloc(PAGE_SIZE<<order,
 143                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 144 }
 145
 146 static __inline void free_pages(void *p, int order)
 147 {
 148         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 149 }
 150
 151 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 152 {
 153         PHBA hba;
 154         struct freelist *f;
 155         HPT_UINT i;
 156         void **p;
 157
 158         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 159                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 160
 161         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 162
 163         for (f=vbus_ext->freelist_head; f; f=f->next) {
 164                 KdPrint(("%s: %d*%d=%d bytes",
 165                         f->tag, f->count, f->size, f->count*f->size));
 166                 for (i=0; i<f->count; i++) {
 167                         p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
 168                         if (!p) return (ENXIO);
 169                         *p = f->head;
 170                         f->head = p;
 171                 }
 172         }
 173
 174         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 175                 int order, size, j;
 176
 177                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 178
 179                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
 180                         ;
 181
 182                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 183                         f->tag, f->count, f->size, f->count*f->size, order));
 184                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 185
 186                 for (i=0; i<f->count;) {
 187                         p = (void **)__get_free_pages(order);
 188                         if (!p) return -1;
 189                         for (j = size/f->size; j && i<f->count; i++,j--) {
 190                                 *p = f->head;
 191                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 192                                 f->head = p;
 193                                 p = (void **)((unsigned long)p + f->size);
 194                         }
 195                 }
 196         }
 197
 198         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 199
 200         for (i=0; i<os_max_cache_pages; i++) {
 201                 p = (void **)__get_free_pages(0);
 202                 if (!p) return -1;
 203                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 204                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 205         }
 206
 207         return 0;
 208 }
 209
 210 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 211 {
 212         struct freelist *f;
 213         void *p;
 214         int i;
 215         BUS_ADDRESS bus;
 216
 217         for (f=vbus_ext->freelist_head; f; f=f->next) {
 218 #if DBG
 219                 if (f->count!=f->reserved_count) {
 220                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 221                 }
 222 #endif
 223                 while ((p=freelist_get(f)))
 224                         kfree(p, M_DEVBUF);
 225         }
 226
 227         for (i=0; i<os_max_cache_pages; i++) {
 228                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 229                 HPT_ASSERT(p);
 230                 free_pages(p, 0);
 231         }
 232
 233         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 234                 int order, size;
 235 #if DBG
 236                 if (f->count!=f->reserved_count) {
 237                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 238                 }
 239 #endif
 240                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 241
 242                 while ((p=freelist_get_dma(f, &bus))) {
 243                         if (order)
 244                                 free_pages(p, order);
 245                         else {
 246                         /* can't free immediately since other blocks in this page may still be in the list */
 247                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 248                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 249                         }
 250                 }
 251         }
 252
 253         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 254                 free_pages(p, 0);
 255 }
 256
 257 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 258 {
 259         PHBA hba;
 260
 261         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 262                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 263                         KdPrint(("fail to initialize %p", hba));
 264                         return -1;
 265                 }
 266
 267         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 268         return 0;
 269 }
 270
 271 static void hpt_flush_done(PCOMMAND pCmd)
 272 {
 273         PVDEV vd = pCmd->target;
 274
 275         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 276                 vd = vd->u.array.transform->target;
 277                 HPT_ASSERT(vd);
 278                 pCmd->target = vd;
 279                 pCmd->Result = RETURN_PENDING;
 280                 vdev_queue_cmd(pCmd);
 281                 return;
 282         }
 283
 284         *(int *)pCmd->priv = 1;
 285         wakeup(pCmd);
 286 }
 287
 288 /*
 289  * flush a vdev (without retry).
 290  */
 291 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 292 {
 293         PCOMMAND pCmd;
 294         int result = 0, done;
 295         HPT_UINT count;
 296
 297         KdPrint(("flusing dev %p", vd));
 298
 299         hpt_assert_vbus_locked(vbus_ext);
 300
 301         if (mIsArray(vd->type) && vd->u.array.transform)
 302                 count = max(vd->u.array.transform->source->cmds_per_request,
 303                                         vd->u.array.transform->target->cmds_per_request);
 304         else
 305                 count = vd->cmds_per_request;
 306
 307         pCmd = ldm_alloc_cmds(vd->vbus, count);
 308
 309         if (!pCmd) {
 310                 return -1;
 311         }
 312
 313         pCmd->type = CMD_TYPE_FLUSH;
 314         pCmd->flags.hard_flush = 1;
 315         pCmd->target = vd;
 316         pCmd->done = hpt_flush_done;
 317         done = 0;
 318         pCmd->priv = &done;
 319
 320         ldm_queue_cmd(pCmd);
 321
 322         if (!done) {
 323                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
 324                         ldm_reset_vbus(vd->vbus);
 325                 }
 326         }
 327
 328         KdPrint(("flush result %d", pCmd->Result));
 329
 330         if (pCmd->Result!=RETURN_SUCCESS)
 331                 result = -1;
 332
 333         ldm_free_cmds(pCmd);
 334
 335         return result;
 336 }
 337
 338 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 339 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 340 {
 341         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 342         PHBA hba;
 343         int i;
 344
 345         KdPrint(("hpt_shutdown_vbus"));
 346
 347         /* stop all ctl tasks and disable the worker taskqueue */
 348         hpt_stop_tasks(vbus_ext);
 349         hpt_lock_vbus(vbus_ext);
 350         vbus_ext->worker.ta_context = NULL;
 351
 352         /* flush devices */
 353         for (i=0; i<osm_max_targets; i++) {
 354                 PVDEV vd = ldm_find_target(vbus, i);
 355                 if (vd) {
 356                         /* retry once */
 357                         if (hpt_flush_vdev(vbus_ext, vd))
 358                                 hpt_flush_vdev(vbus_ext, vd);
 359                 }
 360         }
 361
 362         ldm_shutdown(vbus);
 363         hpt_unlock_vbus(vbus_ext);
 364
 365         ldm_release_vbus(vbus);
 366
 367         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 368                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 369
 370         hpt_free_mem(vbus_ext);
 371
 372         while ((hba=vbus_ext->hba_list)) {
 373                 vbus_ext->hba_list = hba->next;
 374                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 375         }
 376
 377         callout_terminate(&vbus_ext->timer);
 378         lockuninit(&vbus_ext->lock);
 379         kfree(vbus_ext, M_DEVBUF);
 380         KdPrint(("hpt_shutdown_vbus done"));
 381 }
 382
 383 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 384 {
 385         OSM_TASK *tasks;
 386
 387         tasks = vbus_ext->tasks;
 388         vbus_ext->tasks = NULL;
 389
 390         while (tasks) {
 391                 OSM_TASK *t = tasks;
 392                 tasks = t->next;
 393                 t->next = NULL;
 394                 t->func(vbus_ext->vbus, t->data);
 395         }
 396 }
 397
 398 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 399 {
 400         if(vbus_ext){
 401                 hpt_lock_vbus(vbus_ext);
 402                 __hpt_do_tasks(vbus_ext);
 403                 hpt_unlock_vbus(vbus_ext);
 404         }
 405 }
 406
 407 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 408 static void hpt_poll(struct cam_sim *sim);
 409 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 410 static void hpt_pci_intr(void *arg);
 411
 412 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 413 {
 414         POS_CMDEXT p = vbus_ext->cmdext_list;
 415         if (p)
 416                 vbus_ext->cmdext_list = p->next;
 417         return p;
 418 }
 419
 420 static __inline void cmdext_put(POS_CMDEXT p)
 421 {
 422         p->next = p->vbus_ext->cmdext_list;
 423         p->vbus_ext->cmdext_list = p;
 424 }
 425
 426 static void hpt_timeout(void *arg)
 427 {
 428         PCOMMAND pCmd = (PCOMMAND)arg;
 429         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 430
 431         KdPrint(("pCmd %p timeout", pCmd));
 432
 433         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 434 }
 435
 436 static void os_cmddone(PCOMMAND pCmd)
 437 {
 438         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 439         union ccb *ccb = ext->ccb;
 440
 441         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 442
 443         callout_stop(&ext->timeout);
 444
 445         switch(pCmd->Result) {
 446         case RETURN_SUCCESS:
 447                 ccb->ccb_h.status = CAM_REQ_CMP;
 448                 break;
 449         case RETURN_BAD_DEVICE:
 450                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 451                 break;
 452         case RETURN_DEVICE_BUSY:
 453                 ccb->ccb_h.status = CAM_BUSY;
 454                 break;
 455         case RETURN_INVALID_REQUEST:
 456                 ccb->ccb_h.status = CAM_REQ_INVALID;
 457                 break;
 458         case RETURN_SELECTION_TIMEOUT:
 459                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 460                 break;
 461         case RETURN_RETRY:
 462                 ccb->ccb_h.status = CAM_BUSY;
 463                 break;
 464         default:
 465                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 466                 break;
 467         }
 468
 469         if (pCmd->flags.data_in) {
 470                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 471         }
 472         else if (pCmd->flags.data_out) {
 473                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 474         }
 475
 476         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 477
 478         cmdext_put(ext);
 479         ldm_free_cmds(pCmd);
 480         xpt_done(ccb);
 481 }
 482
 483 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 484 {
 485         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 486         union ccb *ccb = ext->ccb;
 487
 488         if(logical)     {
 489                 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 490                 pSg->size = ccb->csio.dxfer_len;
 491                 pSg->eot = 1;
 492                 return TRUE;
 493         }
 494
 495         /* since we have provided physical sg, nobody will ask us to build physical sg */
 496         HPT_ASSERT(0);
 497         return FALSE;
 498 }
 499
 500 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 501 {
 502         PCOMMAND pCmd = (PCOMMAND)arg;
 503         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 504         PSG psg = pCmd->psg;
 505         int idx;
 506
 507         HPT_ASSERT(pCmd->flags.physical_sg);
 508
 509         if (error)
 510                 panic("busdma error");
 511
 512         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 513
 514         if (nsegs != 0) {
 515                 for (idx = 0; idx < nsegs; idx++, psg++) {
 516                         psg->addr.bus = segs[idx].ds_addr;
 517                         psg->size = segs[idx].ds_len;
 518                         psg->eot = 0;
 519                 }
 520                         psg[-1].eot = 1;
 521
 522                 if (pCmd->flags.data_in) {
 523                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 524                             BUS_DMASYNC_PREREAD);
 525                 }
 526                 else if (pCmd->flags.data_out) {
 527                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
 528                             BUS_DMASYNC_PREWRITE);
 529                 }
 530         }
 531         callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, 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_SEL_TIMEOUT;
 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         {
 657                 int error;
 658
 659                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 660                 if(!pCmd){
 661                         KdPrint(("Failed to allocate command!"));
 662                         ccb->ccb_h.status = CAM_BUSY;
 663                         break;
 664                 }
 665
 666                 switch (cdb[0]) {
 667                 case READ_6:
 668                 case WRITE_6:
 669                 case 0x13:
 670                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 671                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 672                         break;
 673                 case READ_16:
 674                 case WRITE_16:
 675                 {
 676                         HPT_U64 block =
 677                                 ((HPT_U64)cdb[2]<<56) |
 678                                 ((HPT_U64)cdb[3]<<48) |
 679                                 ((HPT_U64)cdb[4]<<40) |
 680                                 ((HPT_U64)cdb[5]<<32) |
 681                                 ((HPT_U64)cdb[6]<<24) |
 682                                 ((HPT_U64)cdb[7]<<16) |
 683                                 ((HPT_U64)cdb[8]<<8) |
 684                                 ((HPT_U64)cdb[9]);
 685                         pCmd->uCmd.Ide.Lba = block;
 686                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 687                         break;
 688                 }
 689
 690                 default:
 691                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 692                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 693                         break;
 694                 }
 695
 696                 switch (cdb[0]) {
 697                 case READ_6:
 698                 case READ_10:
 699                 case READ_16:
 700                         pCmd->flags.data_in = 1;
 701                         break;
 702                 case WRITE_6:
 703                 case WRITE_10:
 704                 case WRITE_16:
 705                         pCmd->flags.data_out = 1;
 706                         break;
 707                 }
 708                 pCmd->priv = ext = cmdext_get(vbus_ext);
 709                 HPT_ASSERT(ext);
 710                 ext->ccb = ccb;
 711                 pCmd->target = vd;
 712                 pCmd->done = os_cmddone;
 713                 pCmd->buildsgl = os_buildsgl;
 714                 pCmd->psg = ext->psg;
 715                 pCmd->flags.physical_sg = 1;
 716                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
 717                                         ext->dma_map,
 718                                         ccb,
 719                                         hpt_io_dmamap_callback, pCmd,
 720                                         BUS_DMA_WAITOK
 721                                         );
 722                 KdPrint(("bus_dmamap_load return %d", error));
 723                 if (error && error!=EINPROGRESS) {
 724                         os_printk("bus_dmamap_load error %d", error);
 725                         cmdext_put(ext);
 726                         ldm_free_cmds(pCmd);
 727                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 728                         xpt_done(ccb);
 729                 }
 730                 return;
 731         }
 732
 733         default:
 734                 ccb->ccb_h.status = CAM_REQ_INVALID;
 735                 break;
 736         }
 737
 738         xpt_done(ccb);
 739         return;
 740 }
 741
 742 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 743 {
 744         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 745
 746         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 747
 748         hpt_assert_vbus_locked(vbus_ext);
 749         switch (ccb->ccb_h.func_code) {
 750
 751         case XPT_SCSI_IO:
 752                 hpt_scsi_io(vbus_ext, ccb);
 753                 return;
 754
 755         case XPT_RESET_BUS:
 756                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 757                 break;
 758
 759         case XPT_GET_TRAN_SETTINGS:
 760         case XPT_SET_TRAN_SETTINGS:
 761                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 762                 break;
 763
 764         case XPT_CALC_GEOMETRY:
 765                 cam_calc_geometry(&ccb->ccg, 1);
 766                 break;
 767
 768         case XPT_PATH_INQ:
 769         {
 770                 struct ccb_pathinq *cpi = &ccb->cpi;
 771
 772                 cpi->version_num = 1;
 773                 cpi->hba_inquiry = PI_SDTR_ABLE;
 774                 cpi->target_sprt = 0;
 775                 cpi->hba_misc = PIM_NOBUSRESET;
 776                 cpi->hba_eng_cnt = 0;
 777                 cpi->max_target = osm_max_targets;
 778                 cpi->max_lun = 0;
 779                 cpi->unit_number = cam_sim_unit(sim);
 780                 cpi->bus_id = cam_sim_bus(sim);
 781                 cpi->initiator_id = osm_max_targets;
 782                 cpi->base_transfer_speed = 3300;
 783
 784                 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 785                 strlcpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 786                 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 787                 cpi->transport = XPORT_SPI;
 788                 cpi->transport_version = 2;
 789                 cpi->protocol = PROTO_SCSI;
 790                 cpi->protocol_version = SCSI_REV_2;
 791                 cpi->maxio = HPTRR_DFLTPHYS;
 792                 cpi->ccb_h.status = CAM_REQ_CMP;
 793                 break;
 794         }
 795
 796         default:
 797                 ccb->ccb_h.status = CAM_REQ_INVALID;
 798                 break;
 799         }
 800
 801         xpt_done(ccb);
 802         return;
 803 }
 804
 805 static void hpt_pci_intr(void *arg)
 806 {
 807         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 808         hpt_lock_vbus(vbus_ext);
 809         ldm_intr((PVBUS)vbus_ext->vbus);
 810         hpt_unlock_vbus(vbus_ext);
 811 }
 812
 813 static void hpt_poll(struct cam_sim *sim)
 814 {
 815         PVBUS_EXT vbus_ext = cam_sim_softc(sim);
 816         hpt_assert_vbus_locked(vbus_ext);
 817         ldm_intr((PVBUS)vbus_ext->vbus);
 818 }
 819
 820 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 821 {
 822         KdPrint(("hpt_async"));
 823 }
 824
 825 static int hpt_shutdown(device_t dev)
 826 {
 827         KdPrint(("hpt_shutdown(dev=%p)", dev));
 828         return 0;
 829 }
 830
 831 static int hpt_detach(device_t dev)
 832 {
 833         /* we don't allow the driver to be unloaded. */
 834         return EBUSY;
 835 }
 836
 837 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 838 {
 839         arg->ioctl_cmnd = NULL;
 840         wakeup(arg);
 841 }
 842
 843 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 844 {
 845         ioctl_args->result = -1;
 846         ioctl_args->done = hpt_ioctl_done;
 847         ioctl_args->ioctl_cmnd = (void *)1;
 848
 849         hpt_lock_vbus(vbus_ext);
 850         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 851
 852         while (ioctl_args->ioctl_cmnd) {
 853                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
 854                         break;
 855                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 856                 __hpt_do_tasks(vbus_ext);
 857         }
 858
 859         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 860
 861         hpt_unlock_vbus(vbus_ext);
 862 }
 863
 864 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 865 {
 866         PVBUS vbus;
 867         PVBUS_EXT vbus_ext;
 868
 869         ldm_for_each_vbus(vbus, vbus_ext) {
 870                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 871                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 872                         return;
 873         }
 874 }
 875
 876 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 877         IOCTL_ARG arg;\
 878         arg.dwIoControlCode = code;\
 879         arg.lpInBuffer = inbuf;\
 880         arg.lpOutBuffer = outbuf;\
 881         arg.nInBufferSize = insize;\
 882         arg.nOutBufferSize = outsize;\
 883         arg.lpBytesReturned = NULL;\
 884         hpt_do_ioctl(&arg);\
 885         arg.result;\
 886 })
 887
 888 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 889
 890 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 891 {
 892         int i;
 893         HPT_U32 count = nMaxCount-1;
 894
 895         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 896                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 897                 return -1;
 898
 899         nMaxCount = (int)pIds[0];
 900         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 901         return nMaxCount;
 902 }
 903
 904 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 905 {
 906         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 907                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 908 }
 909
 910 /* not belong to this file logically, but we want to use ioctl interface */
 911 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 912 {
 913         LOGICAL_DEVICE_INFO_V3 devinfo;
 914         int i, result;
 915         DEVICEID param[2] = { id, 0 };
 916
 917         if (hpt_get_device_info_v3(id, &devinfo))
 918                 return -1;
 919
 920         if (devinfo.Type!=LDT_ARRAY)
 921                 return -1;
 922
 923         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 924                 param[1] = AS_REBUILD_ABORT;
 925         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 926                 param[1] = AS_VERIFY_ABORT;
 927         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 928                 param[1] = AS_INITIALIZE_ABORT;
 929         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 930                 param[1] = AS_TRANSFORM_ABORT;
 931         else
 932                 return -1;
 933
 934         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 935         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 936                                 param, sizeof(param), NULL, 0);
 937
 938         for (i=0; i<devinfo.u.array.nDisk; i++)
 939                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 940                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 941
 942         return result;
 943 }
 944
 945 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 946 {
 947         DEVICEID ids[32];
 948         int i, count;
 949
 950         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 951
 952         for (i=0; i<count; i++)
 953                 __hpt_stop_tasks(vbus_ext, ids[i]);
 954 }
 955
 956 static  d_open_t        hpt_open;
 957 static  d_close_t       hpt_close;
 958 static  d_ioctl_t       hpt_ioctl;
 959 static  int             hpt_rescan_bus(void);
 960 static  void            hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb);
 961
 962 static struct dev_ops hpt_ops = {
 963         { driver_name, 0, D_MPSAFE },
 964         .d_open =       hpt_open,
 965         .d_close =      hpt_close,
 966         .d_ioctl =      hpt_ioctl,
 967 };
 968
 969 static struct intr_config_hook hpt_ich;
 970
 971 /*
 972  * hpt_final_init will be called after all hpt_attach.
 973  */
 974 static void hpt_final_init(void *dummy)
 975 {
 976         int       i;
 977         PVBUS_EXT vbus_ext;
 978         PVBUS vbus;
 979         PHBA hba;
 980
 981         /* Clear the config hook */
 982         config_intrhook_disestablish(&hpt_ich);
 983
 984         /* allocate memory */
 985         i = 0;
 986         ldm_for_each_vbus(vbus, vbus_ext) {
 987                 if (hpt_alloc_mem(vbus_ext)) {
 988                         os_printk("out of memory");
 989                         return;
 990                 }
 991                 i++;
 992         }
 993
 994         if (!i) {
 995                 if (bootverbose)
 996                         os_printk("no controller detected.");
 997                 return;
 998         }
 999
1000         /* initializing hardware */
1001         ldm_for_each_vbus(vbus, vbus_ext) {
1002                 /* make timer available here */
1003                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1004                 callout_init_lk(&vbus_ext->timer, &vbus_ext->lock);
1005                 if (hpt_init_vbus(vbus_ext)) {
1006                         os_printk("fail to initialize hardware");
1007                         break; /* FIXME */
1008                 }
1009         }
1010
1011         /* register CAM interface */
1012         ldm_for_each_vbus(vbus, vbus_ext) {
1013                 struct cam_devq *devq;
1014                 struct ccb_setasync *ccb;
1015
1016                 if (bus_dma_tag_create(NULL,/* parent */
1017                                 4,      /* alignment */
1018                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1019                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1020                                 BUS_SPACE_MAXADDR,      /* highaddr */
1021                                 NULL, NULL,             /* filter, filterarg */
1022                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1023                                 os_max_sg_descriptors,  /* nsegments */
1024                                 0x10000,        /* maxsegsize */
1025                                 BUS_DMA_WAITOK,         /* flags */
1026                                 &vbus_ext->io_dmat      /* tag */))
1027                 {
1028                         return ;
1029                 }
1030
1031                 for (i=0; i<os_max_queue_comm; i++) {
1032                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1033                         if (!ext) {
1034                                 os_printk("Can't alloc cmdext(%d)", i);
1035                                 return ;
1036                         }
1037                         ext->vbus_ext = vbus_ext;
1038                         ext->next = vbus_ext->cmdext_list;
1039                         vbus_ext->cmdext_list = ext;
1040
1041                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1042                                 os_printk("Can't create dma map(%d)", i);
1043                                 return ;
1044                         }
1045                         callout_init_lk(&ext->timeout, &vbus_ext->lock);
1046                 }
1047
1048                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1049                         os_printk("cam_simq_alloc failed");
1050                         return ;
1051                 }
1052
1053                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1054                                 vbus_ext, 0, &vbus_ext->lock, os_max_queue_comm,
1055                                 /*tagged*/8,  devq);
1056                 cam_simq_release(devq);
1057
1058                 if (!vbus_ext->sim) {
1059                         os_printk("cam_sim_alloc failed");
1060                         return ;
1061                 }
1062
1063                 hpt_lock_vbus(vbus_ext);
1064                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1065                         os_printk("xpt_bus_register failed");
1066                         cam_sim_free(vbus_ext->sim);
1067                         hpt_unlock_vbus(vbus_ext);
1068                         vbus_ext->sim = NULL;
1069                         return ;
1070                 }
1071
1072                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1073                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1074                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1075                 {
1076                         os_printk("xpt_create_path failed");
1077                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1078                         cam_sim_free(vbus_ext->sim);
1079                         hpt_unlock_vbus(vbus_ext);
1080                         vbus_ext->sim = NULL;
1081                         return ;
1082                 }
1083                 hpt_unlock_vbus(vbus_ext);
1084
1085                 ccb = &xpt_alloc_ccb()->csa;
1086                 xpt_setup_ccb(&ccb->ccb_h, vbus_ext->path, /*priority*/5);
1087                 ccb->ccb_h.func_code = XPT_SASYNC_CB;
1088                 ccb->event_enable = AC_LOST_DEVICE;
1089                 ccb->callback = hpt_async;
1090                 ccb->callback_arg = vbus_ext;
1091                 xpt_action((union ccb *)ccb);
1092                 xpt_free_ccb(&ccb->ccb_h);
1093
1094                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1095                         int rid = 0;
1096                         if ((hba->irq_res = bus_alloc_resource_any(hba->pcidev,
1097                                 SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1098                         {
1099                                 os_printk("can't allocate interrupt");
1100                                 return ;
1101                         }
1102
1103                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_MPSAFE,
1104                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1105                         {
1106                                 os_printk("can't set up interrupt");
1107                                 return ;
1108                         }
1109                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1110                 }
1111
1112                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1113                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1114                 if (!vbus_ext->shutdown_eh)
1115                         os_printk("Shutdown event registration failed");
1116         }
1117
1118         ldm_for_each_vbus(vbus, vbus_ext) {
1119                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1120                 if (vbus_ext->tasks)
1121                         TASK_ENQUEUE(&vbus_ext->worker);
1122         }
1123
1124         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1125             S_IRUSR | S_IWUSR, "%s", driver_name);
1126 }
1127
1128 #if defined(KLD_MODULE)
1129
1130 typedef struct driverlink *driverlink_t;
1131 struct driverlink {
1132         kobj_class_t    driver;
1133         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1134 };
1135
1136 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1137
1138 struct devclass {
1139         TAILQ_ENTRY(devclass) link;
1140         devclass_t      parent;         /* parent in devclass hierarchy */
1141         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1142         char            *name;
1143         device_t        *devices;       /* array of devices indexed by unit */
1144         int             maxunit;        /* size of devices array */
1145 };
1146
1147 static void override_kernel_driver(void)
1148 {
1149         driverlink_t dl, dlfirst;
1150         driver_t *tmpdriver;
1151         devclass_t dc = devclass_find("pci");
1152
1153         if (dc){
1154                 dlfirst = TAILQ_FIRST(&dc->drivers);
1155                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1156                         if(strcmp(dl->driver->name, driver_name) == 0) {
1157                                 tmpdriver=dl->driver;
1158                                 dl->driver=dlfirst->driver;
1159                                 dlfirst->driver=tmpdriver;
1160                                 break;
1161                         }
1162                 }
1163         }
1164 }
1165
1166 #else
1167 #define override_kernel_driver()
1168 #endif
1169
1170 static void hpt_init(void *dummy)
1171 {
1172         if (bootverbose)
1173                 os_printk("%s %s", driver_name_long, driver_ver);
1174
1175         override_kernel_driver();
1176         init_config();
1177
1178         hpt_ich.ich_func = hpt_final_init;
1179         hpt_ich.ich_arg = NULL;
1180         hpt_ich.ich_desc = "hptrr";
1181         if (config_intrhook_establish(&hpt_ich) != 0) {
1182                 kprintf("%s: cannot establish configuration hook\n",
1183                     driver_name_long);
1184         }
1185
1186 }
1187 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1188
1189 /*
1190  * CAM driver interface
1191  */
1192 static device_method_t driver_methods[] = {
1193         /* Device interface */
1194         DEVMETHOD(device_probe,         hpt_probe),
1195         DEVMETHOD(device_attach,        hpt_attach),
1196         DEVMETHOD(device_detach,        hpt_detach),
1197         DEVMETHOD(device_shutdown,      hpt_shutdown),
1198         DEVMETHOD_END
1199 };
1200
1201 static driver_t hpt_pci_driver = {
1202         driver_name,
1203         driver_methods,
1204         sizeof(HBA)
1205 };
1206
1207 static devclass_t       hpt_devclass;
1208
1209 #ifndef TARGETNAME
1210 #error "no TARGETNAME found"
1211 #endif
1212
1213 /* use this to make TARGETNAME be expanded */
1214 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1215 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1216 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1217 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
1218 __MODULE_VERSION(TARGETNAME, 1);
1219 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1220
1221 static int hpt_open(struct dev_open_args *ap)
1222 {
1223         return 0;
1224 }
1225
1226 static int hpt_close(struct dev_close_args *ap)
1227 {
1228         return 0;
1229 }
1230
1231 static int hpt_ioctl(struct dev_ioctl_args *ap)
1232 {
1233         u_long cmd = ap->a_cmd;
1234         caddr_t data = ap->a_data;
1235         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1236         IOCTL_ARG ioctl_args;
1237         HPT_U32 bytesReturned;
1238
1239         switch (cmd){
1240         case HPT_DO_IOCONTROL:
1241         {
1242                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1243                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1244                                 piop->dwIoControlCode,
1245                                 piop->lpInBuffer,
1246                                 piop->nInBufferSize,
1247                                 piop->lpOutBuffer,
1248                                 piop->nOutBufferSize));
1249
1250                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1251
1252                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1253                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1254                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1255                 ioctl_args.lpBytesReturned = &bytesReturned;
1256
1257                 if (ioctl_args.nInBufferSize) {
1258                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1259                         if (!ioctl_args.lpInBuffer)
1260                                 goto invalid;
1261                         if (copyin((void*)piop->lpInBuffer,
1262                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1263                                 goto invalid;
1264                 }
1265
1266                 if (ioctl_args.nOutBufferSize) {
1267                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1268                         if (!ioctl_args.lpOutBuffer)
1269                                 goto invalid;
1270                 }
1271
1272                 hpt_do_ioctl(&ioctl_args);
1273
1274                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1275                         if (piop->nOutBufferSize) {
1276                                 if (copyout(ioctl_args.lpOutBuffer,
1277                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1278                                         goto invalid;
1279                         }
1280                         if (piop->lpBytesReturned) {
1281                                 if (copyout(&bytesReturned,
1282                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1283                                         goto invalid;
1284                         }
1285                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1286                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1287                         return 0;
1288                 }
1289 invalid:
1290                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1291                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1292                 return EFAULT;
1293         }
1294         return EFAULT;
1295         }
1296
1297         case HPT_SCAN_BUS:
1298         {
1299                 return hpt_rescan_bus();
1300         }
1301         default:
1302                 KdPrint(("invalid command!"));
1303                 return EFAULT;
1304         }
1305
1306 }
1307
1308 static void     hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb)
1309 {
1310         xpt_free_path(ccb->ccb_h.path);
1311         xpt_free_ccb(&ccb->ccb_h);
1312 }
1313
1314 static int      hpt_rescan_bus(void)
1315 {
1316         union ccb                       *ccb;
1317         PVBUS                           vbus;
1318         PVBUS_EXT                       vbus_ext;
1319
1320         ldm_for_each_vbus(vbus, vbus_ext) {
1321                 if ((ccb = xpt_alloc_ccb()) == NULL)
1322                         return(ENOMEM);
1323                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1324                     cam_sim_path(vbus_ext->sim),
1325                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1326                         xpt_free_ccb(&ccb->ccb_h);
1327                         return(EIO);
1328                 }
1329
1330                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
1331                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1332                 ccb->ccb_h.cbfcnp = hpt_rescan_callback;
1333                 ccb->crcn.flags = CAM_FLAG_NONE;
1334                 xpt_action(ccb); /* scan is now in progress */
1335         }
1336
1337         return(0);
1338 }