sys/dev/raid/hpt27xx/osm_bsd.c

   1 /*-
   2  * Copyright (c) 2011 HighPoint Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/dev/hpt27xx/osm_bsd.c,v 1.1 2011/12/28 23:26:58 delphij Exp $
  27  */
  28
  29 #include <dev/raid/hpt27xx/hpt27xx_config.h>
  30
  31 #include <dev/raid/hpt27xx/os_bsd.h>
  32 #include <dev/raid/hpt27xx/hptintf.h>
  33
  34 static int hpt_probe(device_t dev)
  35 {
  36         PCI_ID pci_id;
  37         HIM *him;
  38         int i;
  39         PHBA hba;
  40
  41         for (him = him_list; him; him = him->next) {
  42                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
  43                         if (him->get_controller_count)
  44                                 him->get_controller_count(&pci_id,0,0);
  45                         if ((pci_get_vendor(dev) == pci_id.vid) &&
  46                                 (pci_get_device(dev) == pci_id.did)){
  47                                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
  48                                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
  49                                 ));
  50                                 device_set_desc(dev, him->name);
  51                                 hba = (PHBA)device_get_softc(dev);
  52                                 memset(hba, 0, sizeof(HBA));
  53                                 hba->ext_type = EXT_TYPE_HBA;
  54                                 hba->ldm_adapter.him = him;
  55                                 return 0;
  56                         }
  57                 }
  58         }
  59
  60         return (ENXIO);
  61 }
  62
  63 static int hpt_attach(device_t dev)
  64 {
  65         PHBA hba = (PHBA)device_get_softc(dev);
  66         HIM *him = hba->ldm_adapter.him;
  67         PCI_ID pci_id;
  68         HPT_UINT size;
  69         PVBUS vbus;
  70         PVBUS_EXT vbus_ext;
  71
  72         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
  73
  74         pci_enable_busmaster(dev);
  75
  76         pci_id.vid = pci_get_vendor(dev);
  77         pci_id.did = pci_get_device(dev);
  78         pci_id.rev = pci_get_revid(dev);
  79         pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
  80
  81         size = him->get_adapter_size(&pci_id);
  82         hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
  83         if (!hba->ldm_adapter.him_handle)
  84                 return ENXIO;
  85
  86         hba->pcidev = dev;
  87         hba->pciaddr.tree = 0;
  88         hba->pciaddr.bus = pci_get_bus(dev);
  89         hba->pciaddr.device = pci_get_slot(dev);
  90         hba->pciaddr.function = pci_get_function(dev);
  91
  92         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
  93                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
  94                 return -1;
  95         }
  96
  97         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
  98                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
  99
 100         if (!ldm_register_adapter(&hba->ldm_adapter)) {
 101                 size = ldm_get_vbus_size();
 102                 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
 103                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 104                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 105                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 106                 ldm_register_adapter(&hba->ldm_adapter);
 107         }
 108
 109         ldm_for_each_vbus(vbus, vbus_ext) {
 110                 if (hba->ldm_adapter.vbus==vbus) {
 111                         hba->vbus_ext = vbus_ext;
 112                         hba->next = vbus_ext->hba_list;
 113                         vbus_ext->hba_list = hba;
 114                         break;
 115                 }
 116         }
 117         return 0;
 118 }
 119
 120 /*
 121  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 122  * but there are some problems currently (alignment, etc).
 123  */
 124 static __inline void *__get_free_pages(int order)
 125 {
 126         /* don't use low memory - other devices may get starved */
 127         return contigmalloc(PAGE_SIZE<<order,
 128                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 129 }
 130
 131 static __inline void free_pages(void *p, int order)
 132 {
 133         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 134 }
 135
 136 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 137 {
 138         PHBA hba;
 139         struct freelist *f;
 140         HPT_UINT i;
 141         void **p;
 142
 143         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 144                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 145
 146         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 147
 148         for (f=vbus_ext->freelist_head; f; f=f->next) {
 149                 KdPrint(("%s: %d*%d=%d bytes",
 150                         f->tag, f->count, f->size, f->count*f->size));
 151                 for (i=0; i<f->count; i++) {
 152                         p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
 153                         if (!p) return (ENXIO);
 154                         *p = f->head;
 155                         f->head = p;
 156                 }
 157         }
 158
 159         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 160                 int order, size, j;
 161
 162                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 163
 164                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 165
 166                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 167                         f->tag, f->count, f->size, f->count*f->size, order));
 168                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 169
 170                 for (i=0; i<f->count;) {
 171                         p = (void **)__get_free_pages(order);
 172                         if (!p) return -1;
 173                         for (j = size/f->size; j && i<f->count; i++,j--) {
 174                                 *p = f->head;
 175                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 176                                 f->head = p;
 177                                 p = (void **)((unsigned long)p + f->size);
 178                         }
 179                 }
 180         }
 181
 182         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 183
 184         for (i=0; i<os_max_cache_pages; i++) {
 185                 p = (void **)__get_free_pages(0);
 186                 if (!p) return -1;
 187                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 188                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 189         }
 190
 191         return 0;
 192 }
 193
 194 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 195 {
 196         struct freelist *f;
 197         void *p;
 198         int i;
 199         BUS_ADDRESS bus;
 200
 201         for (f=vbus_ext->freelist_head; f; f=f->next) {
 202 #if DBG
 203                 if (f->count!=f->reserved_count) {
 204                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 205                 }
 206 #endif
 207                 while ((p=freelist_get(f)))
 208                         kfree(p, M_DEVBUF);
 209         }
 210
 211         for (i=0; i<os_max_cache_pages; i++) {
 212                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 213                 HPT_ASSERT(p);
 214                 free_pages(p, 0);
 215         }
 216
 217         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 218                 int order, size;
 219 #if DBG
 220                 if (f->count!=f->reserved_count) {
 221                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 222                 }
 223 #endif
 224                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 225
 226                 while ((p=freelist_get_dma(f, &bus))) {
 227                         if (order)
 228                                 free_pages(p, order);
 229                         else {
 230                         /* can't free immediately since other blocks in this page may still be in the list */
 231                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 232                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 233                         }
 234                 }
 235         }
 236
 237         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 238                 free_pages(p, 0);
 239 }
 240
 241 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 242 {
 243         PHBA hba;
 244
 245         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 246                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 247                         KdPrint(("fail to initialize %p", hba));
 248                         return -1;
 249                 }
 250
 251         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 252         return 0;
 253 }
 254
 255 static void hpt_flush_done(PCOMMAND pCmd)
 256 {
 257         PVDEV vd = pCmd->target;
 258
 259         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 260                 vd = vd->u.array.transform->target;
 261                 HPT_ASSERT(vd);
 262                 pCmd->target = vd;
 263                 pCmd->Result = RETURN_PENDING;
 264                 vdev_queue_cmd(pCmd);
 265                 return;
 266         }
 267
 268         *(int *)pCmd->priv = 1;
 269         wakeup(pCmd);
 270 }
 271
 272 /*
 273  * flush a vdev (without retry).
 274  */
 275 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 276 {
 277         PCOMMAND pCmd;
 278         int result = 0, done;
 279         HPT_UINT count;
 280
 281         KdPrint(("flusing dev %p", vd));
 282
 283         hpt_lock_vbus(vbus_ext);
 284
 285         if (mIsArray(vd->type) && vd->u.array.transform)
 286                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 287                                         vd->u.array.transform->target->cmds_per_request);
 288         else
 289                 count = vd->cmds_per_request;
 290
 291         pCmd = ldm_alloc_cmds(vd->vbus, count);
 292
 293         if (!pCmd) {
 294                 hpt_unlock_vbus(vbus_ext);
 295                 return -1;
 296         }
 297
 298         pCmd->type = CMD_TYPE_FLUSH;
 299         pCmd->flags.hard_flush = 1;
 300         pCmd->target = vd;
 301         pCmd->done = hpt_flush_done;
 302         done = 0;
 303         pCmd->priv = &done;
 304
 305         ldm_queue_cmd(pCmd);
 306
 307         if (!done) {
 308                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
 309                         ldm_reset_vbus(vd->vbus);
 310                 }
 311         }
 312
 313         KdPrint(("flush result %d", pCmd->Result));
 314
 315         if (pCmd->Result!=RETURN_SUCCESS)
 316                 result = -1;
 317
 318         ldm_free_cmds(pCmd);
 319
 320         hpt_unlock_vbus(vbus_ext);
 321
 322         return result;
 323 }
 324
 325 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 326 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 327 {
 328         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 329         PHBA hba;
 330         int i;
 331
 332         KdPrint(("hpt_shutdown_vbus"));
 333
 334         /* stop all ctl tasks and disable the worker taskqueue */
 335         hpt_stop_tasks(vbus_ext);
 336         vbus_ext->worker.ta_context = NULL;
 337
 338         /* flush devices */
 339         for (i=0; i<osm_max_targets; i++) {
 340                 PVDEV vd = ldm_find_target(vbus, i);
 341                 if (vd) {
 342                         /* retry once */
 343                         if (hpt_flush_vdev(vbus_ext, vd))
 344                                 hpt_flush_vdev(vbus_ext, vd);
 345                 }
 346         }
 347
 348         hpt_lock_vbus(vbus_ext);
 349         ldm_shutdown(vbus);
 350         hpt_unlock_vbus(vbus_ext);
 351
 352         ldm_release_vbus(vbus);
 353
 354         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 355                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 356
 357         hpt_free_mem(vbus_ext);
 358
 359         while ((hba=vbus_ext->hba_list)) {
 360                 vbus_ext->hba_list = hba->next;
 361                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 362         }
 363
 364         kfree(vbus_ext, M_DEVBUF);
 365         KdPrint(("hpt_shutdown_vbus done"));
 366 }
 367
 368 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 369 {
 370         OSM_TASK *tasks;
 371
 372         tasks = vbus_ext->tasks;
 373         vbus_ext->tasks = NULL;
 374
 375         while (tasks) {
 376                 OSM_TASK *t = tasks;
 377                 tasks = t->next;
 378                 t->next = NULL;
 379                 t->func(vbus_ext->vbus, t->data);
 380         }
 381 }
 382
 383 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 384 {
 385         if(vbus_ext){
 386                 hpt_lock_vbus(vbus_ext);
 387                 __hpt_do_tasks(vbus_ext);
 388                 hpt_unlock_vbus(vbus_ext);
 389         }
 390 }
 391
 392 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 393 static void hpt_poll(struct cam_sim *sim);
 394 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 395 static void hpt_pci_intr(void *arg);
 396
 397 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 398 {
 399         POS_CMDEXT p = vbus_ext->cmdext_list;
 400         if (p)
 401                 vbus_ext->cmdext_list = p->next;
 402         return p;
 403 }
 404
 405 static __inline void cmdext_put(POS_CMDEXT p)
 406 {
 407         p->next = p->vbus_ext->cmdext_list;
 408         p->vbus_ext->cmdext_list = p;
 409 }
 410
 411 static void hpt_timeout(void *arg)
 412 {
 413         PCOMMAND pCmd = (PCOMMAND)arg;
 414         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 415
 416         KdPrint(("pCmd %p timeout", pCmd));
 417
 418         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 419 }
 420
 421 static void os_cmddone(PCOMMAND pCmd)
 422 {
 423         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 424         union ccb *ccb = ext->ccb;
 425
 426         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 427
 428         callout_stop(&ccb->ccb_h.timeout_ch);
 429
 430         switch(pCmd->Result) {
 431         case RETURN_SUCCESS:
 432                 ccb->ccb_h.status = CAM_REQ_CMP;
 433                 break;
 434         case RETURN_BAD_DEVICE:
 435                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 436                 break;
 437         case RETURN_DEVICE_BUSY:
 438                 ccb->ccb_h.status = CAM_BUSY;
 439                 break;
 440         case RETURN_INVALID_REQUEST:
 441                 ccb->ccb_h.status = CAM_REQ_INVALID;
 442                 break;
 443         case RETURN_SELECTION_TIMEOUT:
 444                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 445                 break;
 446         case RETURN_RETRY:
 447                 ccb->ccb_h.status = CAM_BUSY;
 448                 break;
 449         default:
 450                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 451                 break;
 452         }
 453
 454         if (pCmd->flags.data_in) {
 455                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 456         }
 457         else if (pCmd->flags.data_out) {
 458                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 459         }
 460
 461         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 462
 463         cmdext_put(ext);
 464         ldm_free_cmds(pCmd);
 465         xpt_done(ccb);
 466 }
 467
 468 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 469 {
 470         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 471         union ccb *ccb = ext->ccb;
 472         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 473         int idx;
 474
 475         if(logical)     {
 476                 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
 477                         panic("physical address unsupported");
 478
 479                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 480                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 481                                 panic("physical address unsupported");
 482
 483                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 484                                 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
 485                                 pSg[idx].size = sgList[idx].ds_len;
 486                                 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 487                         }
 488                 }
 489                 else {
 490                         os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 491                         pSg->size = ccb->csio.dxfer_len;
 492                         pSg->eot = 1;
 493                 }
 494                 return TRUE;
 495         }
 496
 497         /* since we have provided physical sg, nobody will ask us to build physical sg */
 498         HPT_ASSERT(0);
 499         return FALSE;
 500 }
 501
 502 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 503 {
 504         PCOMMAND pCmd = (PCOMMAND)arg;
 505         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 506         PSG psg = pCmd->psg;
 507         int idx;
 508
 509         HPT_ASSERT(pCmd->flags.physical_sg);
 510
 511         if (error || nsegs == 0)
 512                 panic("busdma error");
 513
 514         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 515
 516         for (idx = 0; idx < nsegs; idx++, psg++) {
 517                 psg->addr.bus = segs[idx].ds_addr;
 518                 psg->size = segs[idx].ds_len;
 519                 psg->eot = 0;
 520         }
 521         psg[-1].eot = 1;
 522
 523         if (pCmd->flags.data_in) {
 524                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
 525         }
 526         else if (pCmd->flags.data_out) {
 527                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
 528         }
 529
 530         callout_reset(&ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 531         ldm_queue_cmd(pCmd);
 532 }
 533
 534 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 535 {
 536         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 537         PVDEV vd;
 538         PCOMMAND pCmd;
 539         POS_CMDEXT ext;
 540         HPT_U8 *cdb;
 541
 542         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 543                 cdb = ccb->csio.cdb_io.cdb_ptr;
 544         else
 545                 cdb = ccb->csio.cdb_io.cdb_bytes;
 546
 547         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 548                 ccb,
 549                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 550                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 551         ));
 552
 553         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 554         if (ccb->ccb_h.target_lun != 0 ||
 555                 ccb->ccb_h.target_id >= osm_max_targets ||
 556                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 557         {
 558                 ccb->ccb_h.status = CAM_TID_INVALID;
 559                 xpt_done(ccb);
 560                 return;
 561         }
 562
 563         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 564
 565         if (!vd) {
 566                 ccb->ccb_h.status = CAM_TID_INVALID;
 567                 xpt_done(ccb);
 568                 return;
 569         }
 570
 571         switch (cdb[0]) {
 572         case TEST_UNIT_READY:
 573         case START_STOP_UNIT:
 574         case SYNCHRONIZE_CACHE:
 575                 ccb->ccb_h.status = CAM_REQ_CMP;
 576                 break;
 577
 578         case INQUIRY:
 579                 {
 580                         PINQUIRYDATA inquiryData;
 581                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 582                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 583
 584                         inquiryData->AdditionalLength = 31;
 585                         inquiryData->CommandQueue = 1;
 586                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 587                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 588
 589                         if (vd->target_id / 10) {
 590                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 591                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 592                         }
 593                         else
 594                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 595
 596                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 597
 598                         ccb->ccb_h.status = CAM_REQ_CMP;
 599                 }
 600                 break;
 601
 602         case READ_CAPACITY:
 603         {
 604                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 605                 HPT_U32 cap;
 606
 607                 if (vd->capacity>0xfffffffful)
 608                         cap = 0xfffffffful;
 609                 else
 610                         cap = vd->capacity - 1;
 611
 612                 rbuf[0] = (HPT_U8)(cap>>24);
 613                 rbuf[1] = (HPT_U8)(cap>>16);
 614                 rbuf[2] = (HPT_U8)(cap>>8);
 615                 rbuf[3] = (HPT_U8)cap;
 616                 rbuf[4] = 0;
 617                 rbuf[5] = 0;
 618                 rbuf[6] = 2;
 619                 rbuf[7] = 0;
 620
 621                 ccb->ccb_h.status = CAM_REQ_CMP;
 622                 break;
 623         }
 624
 625         case SERVICE_ACTION_IN:
 626         {
 627                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 628                 HPT_U64 cap = vd->capacity - 1;
 629
 630                 rbuf[0] = (HPT_U8)(cap>>56);
 631                 rbuf[1] = (HPT_U8)(cap>>48);
 632                 rbuf[2] = (HPT_U8)(cap>>40);
 633                 rbuf[3] = (HPT_U8)(cap>>32);
 634                 rbuf[4] = (HPT_U8)(cap>>24);
 635                 rbuf[5] = (HPT_U8)(cap>>16);
 636                 rbuf[6] = (HPT_U8)(cap>>8);
 637                 rbuf[7] = (HPT_U8)cap;
 638                 rbuf[8] = 0;
 639                 rbuf[9] = 0;
 640                 rbuf[10] = 2;
 641                 rbuf[11] = 0;
 642
 643                 ccb->ccb_h.status = CAM_REQ_CMP;
 644                 break;
 645         }
 646
 647         case READ_6:
 648         case READ_10:
 649         case READ_16:
 650         case WRITE_6:
 651         case WRITE_10:
 652         case WRITE_16:
 653         case 0x13:
 654         case 0x2f:
 655         case 0x8f: /* VERIFY_16 */
 656         {
 657                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 658                 if(!pCmd){
 659                         KdPrint(("Failed to allocate command!"));
 660                         ccb->ccb_h.status = CAM_BUSY;
 661                         break;
 662                 }
 663
 664                 switch (cdb[0]) {
 665                 case READ_6:
 666                 case WRITE_6:
 667                 case 0x13:
 668                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 669                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 670                         break;
 671                 case READ_16:
 672                 case WRITE_16:
 673                 case 0x8f: /* VERIFY_16 */
 674                 {
 675                         HPT_U64 block =
 676                                 ((HPT_U64)cdb[2]<<56) |
 677                                 ((HPT_U64)cdb[3]<<48) |
 678                                 ((HPT_U64)cdb[4]<<40) |
 679                                 ((HPT_U64)cdb[5]<<32) |
 680                                 ((HPT_U64)cdb[6]<<24) |
 681                                 ((HPT_U64)cdb[7]<<16) |
 682                                 ((HPT_U64)cdb[8]<<8) |
 683                                 ((HPT_U64)cdb[9]);
 684                         pCmd->uCmd.Ide.Lba = block;
 685                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 686                         break;
 687                 }
 688
 689                 default:
 690                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 691                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 692                         break;
 693                 }
 694
 695                 switch (cdb[0]) {
 696                 case READ_6:
 697                 case READ_10:
 698                 case READ_16:
 699                         pCmd->flags.data_in = 1;
 700                         break;
 701                 case WRITE_6:
 702                 case WRITE_10:
 703                 case WRITE_16:
 704                         pCmd->flags.data_out = 1;
 705                         break;
 706                 }
 707                 pCmd->priv = ext = cmdext_get(vbus_ext);
 708                 HPT_ASSERT(ext);
 709                 ext->ccb = ccb;
 710                 pCmd->target = vd;
 711                 pCmd->done = os_cmddone;
 712                 pCmd->buildsgl = os_buildsgl;
 713
 714                 pCmd->psg = ext->psg;
 715
 716                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 717                         int idx;
 718                         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 719
 720                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 721                                 pCmd->flags.physical_sg = 1;
 722
 723                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 724                                 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
 725                                 pCmd->psg[idx].size = sgList[idx].ds_len;
 726                                 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 727                         }
 728
 729                         callout_reset(&ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 730                         ldm_queue_cmd(pCmd);
 731                 }
 732                 else {
 733                         int error;
 734                         pCmd->flags.physical_sg = 1;
 735                         error = bus_dmamap_load(vbus_ext->io_dmat,
 736                                                 ext->dma_map,
 737                                                 ccb->csio.data_ptr, ccb->csio.dxfer_len,
 738                                                 hpt_io_dmamap_callback, pCmd,
 739                                         BUS_DMA_WAITOK
 740                                         );
 741                         KdPrint(("bus_dmamap_load return %d", error));
 742                         if (error && error!=EINPROGRESS) {
 743                                 os_printk("bus_dmamap_load error %d", error);
 744                                 cmdext_put(ext);
 745                                 ldm_free_cmds(pCmd);
 746                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 747                                 xpt_done(ccb);
 748                         }
 749                 }
 750                 return;
 751         }
 752
 753         default:
 754                 ccb->ccb_h.status = CAM_REQ_INVALID;
 755                 break;
 756         }
 757
 758         xpt_done(ccb);
 759         return;
 760 }
 761
 762 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 763 {
 764         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 765
 766         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 767
 768         switch (ccb->ccb_h.func_code) {
 769
 770         case XPT_SCSI_IO:
 771                 hpt_lock_vbus(vbus_ext);
 772                 hpt_scsi_io(vbus_ext, ccb);
 773                 hpt_unlock_vbus(vbus_ext);
 774                 return;
 775
 776         case XPT_RESET_BUS:
 777                 hpt_lock_vbus(vbus_ext);
 778                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 779                 hpt_unlock_vbus(vbus_ext);
 780                 break;
 781
 782         case XPT_GET_TRAN_SETTINGS:
 783         case XPT_SET_TRAN_SETTINGS:
 784                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 785                 break;
 786
 787         case XPT_CALC_GEOMETRY:
 788                 ccb->ccg.heads = 255;
 789                 ccb->ccg.secs_per_track = 63;
 790                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 791                 ccb->ccb_h.status = CAM_REQ_CMP;
 792                 break;
 793
 794         case XPT_PATH_INQ:
 795         {
 796                 struct ccb_pathinq *cpi = &ccb->cpi;
 797
 798                 cpi->version_num = 1;
 799                 cpi->hba_inquiry = PI_SDTR_ABLE;
 800                 cpi->target_sprt = 0;
 801                 cpi->hba_misc = PIM_NOBUSRESET;
 802                 cpi->hba_eng_cnt = 0;
 803                 cpi->max_target = osm_max_targets;
 804                 cpi->max_lun = 0;
 805                 cpi->unit_number = cam_sim_unit(sim);
 806                 cpi->bus_id = cam_sim_bus(sim);
 807                 cpi->initiator_id = osm_max_targets;
 808                 cpi->base_transfer_speed = 3300;
 809
 810                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 811                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 812                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 813                 cpi->transport = XPORT_SPI;
 814                 cpi->transport_version = 2;
 815                 cpi->protocol = PROTO_SCSI;
 816                 cpi->protocol_version = SCSI_REV_2;
 817                 cpi->maxio = HPT27XX_DFLTPHYS;
 818                 cpi->ccb_h.status = CAM_REQ_CMP;
 819                 break;
 820         }
 821
 822         default:
 823                 ccb->ccb_h.status = CAM_REQ_INVALID;
 824                 break;
 825         }
 826
 827         xpt_done(ccb);
 828         return;
 829 }
 830
 831 static void hpt_pci_intr(void *arg)
 832 {
 833         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 834         hpt_lock_vbus(vbus_ext);
 835         ldm_intr((PVBUS)vbus_ext->vbus);
 836         hpt_unlock_vbus(vbus_ext);
 837 }
 838
 839 static void hpt_poll(struct cam_sim *sim)
 840 {
 841         hpt_pci_intr(cam_sim_softc(sim));
 842 }
 843
 844 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 845 {
 846         KdPrint(("hpt_async"));
 847 }
 848
 849 static int hpt_shutdown(device_t dev)
 850 {
 851         KdPrint(("hpt_shutdown(dev=%p)", dev));
 852         return 0;
 853 }
 854
 855 static int hpt_detach(device_t dev)
 856 {
 857         /* we don't allow the driver to be unloaded. */
 858         return EBUSY;
 859 }
 860
 861 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 862 {
 863         arg->ioctl_cmnd = NULL;
 864         wakeup(arg);
 865 }
 866
 867 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 868 {
 869         ioctl_args->result = -1;
 870         ioctl_args->done = hpt_ioctl_done;
 871         ioctl_args->ioctl_cmnd = (void *)1;
 872
 873         hpt_lock_vbus(vbus_ext);
 874         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 875
 876         while (ioctl_args->ioctl_cmnd) {
 877                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
 878                         break;
 879                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 880                 __hpt_do_tasks(vbus_ext);
 881         }
 882
 883         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 884
 885         hpt_unlock_vbus(vbus_ext);
 886 }
 887
 888 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 889 {
 890         PVBUS vbus;
 891         PVBUS_EXT vbus_ext;
 892
 893         ldm_for_each_vbus(vbus, vbus_ext) {
 894                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 895                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 896                         return;
 897         }
 898 }
 899
 900 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 901         IOCTL_ARG arg;\
 902         arg.dwIoControlCode = code;\
 903         arg.lpInBuffer = inbuf;\
 904         arg.lpOutBuffer = outbuf;\
 905         arg.nInBufferSize = insize;\
 906         arg.nOutBufferSize = outsize;\
 907         arg.lpBytesReturned = NULL;\
 908         hpt_do_ioctl(&arg);\
 909         arg.result;\
 910 })
 911
 912 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 913
 914 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 915 {
 916         int i;
 917         HPT_U32 count = nMaxCount-1;
 918
 919         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 920                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 921                 return -1;
 922
 923         nMaxCount = (int)pIds[0];
 924         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 925         return nMaxCount;
 926 }
 927
 928 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 929 {
 930         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 931                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 932 }
 933
 934 /* not belong to this file logically, but we want to use ioctl interface */
 935 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 936 {
 937         LOGICAL_DEVICE_INFO_V3 devinfo;
 938         int i, result;
 939         DEVICEID param[2] = { id, 0 };
 940
 941         if (hpt_get_device_info_v3(id, &devinfo))
 942                 return -1;
 943
 944         if (devinfo.Type!=LDT_ARRAY)
 945                 return -1;
 946
 947         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 948                 param[1] = AS_REBUILD_ABORT;
 949         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 950                 param[1] = AS_VERIFY_ABORT;
 951         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 952                 param[1] = AS_INITIALIZE_ABORT;
 953         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 954                 param[1] = AS_TRANSFORM_ABORT;
 955         else
 956                 return -1;
 957
 958         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 959         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 960                                 param, sizeof(param), 0, 0);
 961
 962         for (i=0; i<devinfo.u.array.nDisk; i++)
 963                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 964                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 965
 966         return result;
 967 }
 968
 969 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 970 {
 971         DEVICEID ids[32];
 972         int i, count;
 973
 974         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 975
 976         for (i=0; i<count; i++)
 977                 __hpt_stop_tasks(vbus_ext, ids[i]);
 978 }
 979
 980 static  d_open_t        hpt_open;
 981 static  d_close_t       hpt_close;
 982 static  d_ioctl_t       hpt_ioctl;
 983 static  void            hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
 984 static  int             hpt_rescan_bus(void);
 985
 986 static struct dev_ops hpt_ops = {
 987         { driver_name, 0, 0 },
 988         .d_open =       hpt_open,
 989         .d_close =      hpt_close,
 990         .d_ioctl =      hpt_ioctl,
 991 };
 992
 993 static struct intr_config_hook hpt_ich;
 994
 995 /*
 996  * hpt_final_init will be called after all hpt_attach.
 997  */
 998 static void hpt_final_init(void *dummy)
 999 {
1000         int       i;
1001         PVBUS_EXT vbus_ext;
1002         PVBUS vbus;
1003         PHBA hba;
1004
1005         /* Clear the config hook */
1006         config_intrhook_disestablish(&hpt_ich);
1007
1008         /* allocate memory */
1009         i = 0;
1010         ldm_for_each_vbus(vbus, vbus_ext) {
1011                 if (hpt_alloc_mem(vbus_ext)) {
1012                         os_printk("out of memory");
1013                         return;
1014                 }
1015                 i++;
1016         }
1017
1018         if (!i) {
1019                         os_printk("no controller detected.");
1020                 return;
1021         }
1022
1023         /* initializing hardware */
1024         ldm_for_each_vbus(vbus, vbus_ext) {
1025                 /* make timer available here */
1026                 callout_init(&vbus_ext->timer);
1027                 if (hpt_init_vbus(vbus_ext)) {
1028                         os_printk("fail to initialize hardware");
1029                         break; /* FIXME */
1030                 }
1031         }
1032
1033         /* register CAM interface */
1034         ldm_for_each_vbus(vbus, vbus_ext) {
1035                 struct cam_devq *devq;
1036                 struct ccb_setasync     ccb;
1037
1038                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1039                 if (bus_dma_tag_create(NULL,/* parent */
1040                                 4,      /* alignment */
1041                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1042                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1043                                 BUS_SPACE_MAXADDR,      /* highaddr */
1044                                 NULL, NULL,             /* filter, filterarg */
1045                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1046                                 os_max_sg_descriptors,  /* nsegments */
1047                                 0x10000,        /* maxsegsize */
1048                                 BUS_DMA_WAITOK,         /* flags */
1049                                 &vbus_ext->io_dmat      /* tag */))
1050                 {
1051                         return ;
1052                 }
1053
1054                 for (i=0; i<os_max_queue_comm; i++) {
1055                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1056                         if (!ext) {
1057                                 os_printk("Can't alloc cmdext(%d)", i);
1058                                 return ;
1059                         }
1060                         ext->vbus_ext = vbus_ext;
1061                         ext->next = vbus_ext->cmdext_list;
1062                         vbus_ext->cmdext_list = ext;
1063
1064                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1065                                 os_printk("Can't create dma map(%d)", i);
1066                                 return ;
1067                         }
1068                 }
1069
1070                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1071                         os_printk("cam_simq_alloc failed");
1072                         return ;
1073                 }
1074
1075                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1076                                 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8,  devq);
1077                 cam_simq_release(devq);
1078
1079                 if (!vbus_ext->sim) {
1080                         os_printk("cam_sim_alloc failed");
1081                         return ;
1082                 }
1083
1084                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1085                         os_printk("xpt_bus_register failed");
1086                         cam_sim_free(vbus_ext->sim);
1087                         vbus_ext->sim = NULL;
1088                         return ;
1089                 }
1090
1091                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1092                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1093                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1094                 {
1095                         os_printk("xpt_create_path failed");
1096                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1097                         cam_sim_free(vbus_ext->sim);
1098                         vbus_ext->sim = NULL;
1099                         return ;
1100                 }
1101
1102                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1103                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1104                 ccb.event_enable = AC_LOST_DEVICE;
1105                 ccb.callback = hpt_async;
1106                 ccb.callback_arg = vbus_ext;
1107                 xpt_action((union ccb *)&ccb);
1108
1109                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1110                         int rid = 0;
1111                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1112                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1113                         {
1114                                 os_printk("can't allocate interrupt");
1115                                 return ;
1116                         }
1117
1118                         if (bus_setup_intr(hba->pcidev, hba->irq_res, 0,
1119                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1120                         {
1121                                 os_printk("can't set up interrupt");
1122                                 return ;
1123                         }
1124                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1125
1126                 }
1127
1128                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1129                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1130                 if (!vbus_ext->shutdown_eh)
1131                         os_printk("Shutdown event registration failed");
1132         }
1133
1134         ldm_for_each_vbus(vbus, vbus_ext) {
1135                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1136                 if (vbus_ext->tasks)
1137                         TASK_ENQUEUE(&vbus_ext->worker);
1138         }
1139
1140         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1141             S_IRUSR | S_IWUSR, driver_name);
1142 }
1143
1144 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
1145
1146 typedef struct driverlink *driverlink_t;
1147 struct driverlink {
1148         kobj_class_t    driver;
1149         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1150 };
1151
1152 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1153
1154 struct devclass {
1155         TAILQ_ENTRY(devclass) link;
1156         devclass_t      parent;         /* parent in devclass hierarchy */
1157         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1158         char            *name;
1159         device_t        *devices;       /* array of devices indexed by unit */
1160         int             maxunit;        /* size of devices array */
1161 };
1162
1163 static void override_kernel_driver(void)
1164 {
1165         driverlink_t dl, dlfirst;
1166         driver_t *tmpdriver;
1167         devclass_t dc = devclass_find("pci");
1168
1169         if (dc){
1170                 dlfirst = TAILQ_FIRST(&dc->drivers);
1171                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1172                         if(strcmp(dl->driver->name, driver_name) == 0) {
1173                                 tmpdriver=dl->driver;
1174                                 dl->driver=dlfirst->driver;
1175                                 dlfirst->driver=tmpdriver;
1176                                 break;
1177                         }
1178                 }
1179         }
1180 }
1181
1182 #else
1183 #define override_kernel_driver()
1184 #endif
1185
1186 static void hpt_init(void *dummy)
1187 {
1188         if (bootverbose)
1189                 os_printk("%s %s", driver_name_long, driver_ver);
1190
1191         override_kernel_driver();
1192         init_config();
1193
1194         hpt_ich.ich_func = hpt_final_init;
1195         hpt_ich.ich_arg = NULL;
1196         hpt_ich.ich_desc = "hpt27xx";
1197         if (config_intrhook_establish(&hpt_ich) != 0) {
1198                 kprintf("%s: cannot establish configuration hook\n",
1199                     driver_name_long);
1200         }
1201
1202 }
1203 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1204
1205 /*
1206  * CAM driver interface
1207  */
1208 static device_method_t driver_methods[] = {
1209         /* Device interface */
1210         DEVMETHOD(device_probe,         hpt_probe),
1211         DEVMETHOD(device_attach,        hpt_attach),
1212         DEVMETHOD(device_detach,        hpt_detach),
1213         DEVMETHOD(device_shutdown,      hpt_shutdown),
1214         DEVMETHOD_END
1215 };
1216
1217 static driver_t hpt_pci_driver = {
1218         driver_name,
1219         driver_methods,
1220         sizeof(HBA)
1221 };
1222
1223 static devclass_t       hpt_devclass;
1224
1225 #ifndef TARGETNAME
1226 #error "no TARGETNAME found"
1227 #endif
1228
1229 /* use this to make TARGETNAME be expanded */
1230 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1231 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1232 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1233 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
1234 __MODULE_VERSION(TARGETNAME, 1);
1235 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1236
1237 typedef struct cdev * ioctl_dev_t;
1238
1239 typedef struct thread * ioctl_thread_t;
1240
1241 static int hpt_open(struct dev_open_args *ap)
1242 {
1243         return 0;
1244 }
1245
1246 static int hpt_close(struct dev_close_args *ap)
1247 {
1248         return 0;
1249 }
1250
1251 static int hpt_ioctl(struct dev_ioctl_args *ap)
1252 {
1253         u_long cmd = ap->a_cmd;
1254         caddr_t data = ap->a_data;
1255         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1256         IOCTL_ARG ioctl_args;
1257         HPT_U32 bytesReturned;
1258
1259         switch (cmd){
1260         case HPT_DO_IOCONTROL:
1261         {
1262                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1263                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1264                                 piop->dwIoControlCode,
1265                                 piop->lpInBuffer,
1266                                 piop->nInBufferSize,
1267                                 piop->lpOutBuffer,
1268                                 piop->nOutBufferSize));
1269
1270                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1271
1272                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1273                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1274                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1275                 ioctl_args.lpBytesReturned = &bytesReturned;
1276
1277                 if (ioctl_args.nInBufferSize) {
1278                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1279                         if (!ioctl_args.lpInBuffer)
1280                                 goto invalid;
1281                         if (copyin((void*)piop->lpInBuffer,
1282                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1283                                 goto invalid;
1284                 }
1285
1286                 if (ioctl_args.nOutBufferSize) {
1287                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1288                         if (!ioctl_args.lpOutBuffer)
1289                                 goto invalid;
1290                 }
1291
1292                 get_mplock();
1293
1294                 hpt_do_ioctl(&ioctl_args);
1295
1296                 rel_mplock();
1297
1298                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1299                         if (piop->nOutBufferSize) {
1300                                 if (copyout(ioctl_args.lpOutBuffer,
1301                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1302                                         goto invalid;
1303                         }
1304                         if (piop->lpBytesReturned) {
1305                                 if (copyout(&bytesReturned,
1306                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1307                                         goto invalid;
1308                         }
1309                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1310                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1311                         return 0;
1312                 }
1313 invalid:
1314                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1315                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1316                 return EFAULT;
1317         }
1318         return EFAULT;
1319         }
1320
1321         case HPT_SCAN_BUS:
1322         {
1323                 return hpt_rescan_bus();
1324         }
1325         default:
1326                 KdPrint(("invalid command!"));
1327                 return EFAULT;
1328         }
1329
1330 }
1331
1332 static int      hpt_rescan_bus(void)
1333 {
1334         struct cam_path         *path;
1335         union ccb                       *ccb;
1336         PVBUS                           vbus;
1337         PVBUS_EXT                       vbus_ext;
1338
1339         get_mplock();
1340
1341         ldm_for_each_vbus(vbus, vbus_ext) {
1342                 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vbus_ext->sim),
1343                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1344                         return(EIO);
1345                 if ((ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK)) == NULL)
1346                         return(ENOMEM);
1347                 bzero(ccb, sizeof(union ccb));
1348                 xpt_setup_ccb(&ccb->ccb_h, path, 5);
1349                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1350                 ccb->ccb_h.cbfcnp = hpt_bus_scan_cb;
1351                 ccb->crcn.flags = CAM_FLAG_NONE;
1352                 xpt_action(ccb);
1353         }
1354
1355         rel_mplock();
1356
1357         return(0);
1358 }
1359
1360 static  void    hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
1361 {
1362         if (ccb->ccb_h.status != CAM_REQ_CMP)
1363                 KdPrint(("cam_scan_callback: failure status = %x",ccb->ccb_h.status));
1364         else
1365                 KdPrint(("Scan bus successfully!"));
1366
1367         xpt_free_path(ccb->ccb_h.path);
1368         kfree(ccb, M_TEMP);
1369         return;
1370 }