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                 if (!vbus_ext) {
 104                         kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 105                         return -1;
 106                 }
 107                 memset(vbus_ext, 0, sizeof(VBUS_EXT));
 108                 vbus_ext->ext_type = EXT_TYPE_VBUS;
 109                 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
 110                 ldm_register_adapter(&hba->ldm_adapter);
 111         }
 112
 113         ldm_for_each_vbus(vbus, vbus_ext) {
 114                 if (hba->ldm_adapter.vbus==vbus) {
 115                         hba->vbus_ext = vbus_ext;
 116                         hba->next = vbus_ext->hba_list;
 117                         vbus_ext->hba_list = hba;
 118                         break;
 119                 }
 120         }
 121         return 0;
 122 }
 123
 124 /*
 125  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
 126  * but there are some problems currently (alignment, etc).
 127  */
 128 static __inline void *__get_free_pages(int order)
 129 {
 130         /* don't use low memory - other devices may get starved */
 131         return contigmalloc(PAGE_SIZE<<order,
 132                         M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
 133 }
 134
 135 static __inline void free_pages(void *p, int order)
 136 {
 137         contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
 138 }
 139
 140 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
 141 {
 142         PHBA hba;
 143         struct freelist *f;
 144         HPT_UINT i;
 145         void **p;
 146
 147         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 148                 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
 149
 150         ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
 151
 152         for (f=vbus_ext->freelist_head; f; f=f->next) {
 153                 KdPrint(("%s: %d*%d=%d bytes",
 154                         f->tag, f->count, f->size, f->count*f->size));
 155                 for (i=0; i<f->count; i++) {
 156                         p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
 157                         if (!p) return (ENXIO);
 158                         *p = f->head;
 159                         f->head = p;
 160                 }
 161         }
 162
 163         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 164                 int order, size, j;
 165
 166                 HPT_ASSERT((f->size & (f->alignment-1))==0);
 167
 168                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 169
 170                 KdPrint(("%s: %d*%d=%d bytes, order %d",
 171                         f->tag, f->count, f->size, f->count*f->size, order));
 172                 HPT_ASSERT(f->alignment<=PAGE_SIZE);
 173
 174                 for (i=0; i<f->count;) {
 175                         p = (void **)__get_free_pages(order);
 176                         if (!p) return -1;
 177                         for (j = size/f->size; j && i<f->count; i++,j--) {
 178                                 *p = f->head;
 179                                 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
 180                                 f->head = p;
 181                                 p = (void **)((unsigned long)p + f->size);
 182                         }
 183                 }
 184         }
 185
 186         HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
 187
 188         for (i=0; i<os_max_cache_pages; i++) {
 189                 p = (void **)__get_free_pages(0);
 190                 if (!p) return -1;
 191                 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
 192                 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
 193         }
 194
 195         return 0;
 196 }
 197
 198 static void hpt_free_mem(PVBUS_EXT vbus_ext)
 199 {
 200         struct freelist *f;
 201         void *p;
 202         int i;
 203         BUS_ADDRESS bus;
 204
 205         for (f=vbus_ext->freelist_head; f; f=f->next) {
 206 #if DBG
 207                 if (f->count!=f->reserved_count) {
 208                         KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 209                 }
 210 #endif
 211                 while ((p=freelist_get(f)))
 212                         kfree(p, M_DEVBUF);
 213         }
 214
 215         for (i=0; i<os_max_cache_pages; i++) {
 216                 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
 217                 HPT_ASSERT(p);
 218                 free_pages(p, 0);
 219         }
 220
 221         for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
 222                 int order, size;
 223 #if DBG
 224                 if (f->count!=f->reserved_count) {
 225                         KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
 226                 }
 227 #endif
 228                 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
 229
 230                 while ((p=freelist_get_dma(f, &bus))) {
 231                         if (order)
 232                                 free_pages(p, order);
 233                         else {
 234                         /* can't free immediately since other blocks in this page may still be in the list */
 235                                 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
 236                                         dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
 237                         }
 238                 }
 239         }
 240
 241         while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
 242                 free_pages(p, 0);
 243 }
 244
 245 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
 246 {
 247         PHBA hba;
 248
 249         for (hba = vbus_ext->hba_list; hba; hba = hba->next)
 250                 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
 251                         KdPrint(("fail to initialize %p", hba));
 252                         return -1;
 253                 }
 254
 255         ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
 256         return 0;
 257 }
 258
 259 static void hpt_flush_done(PCOMMAND pCmd)
 260 {
 261         PVDEV vd = pCmd->target;
 262
 263         if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
 264                 vd = vd->u.array.transform->target;
 265                 HPT_ASSERT(vd);
 266                 pCmd->target = vd;
 267                 pCmd->Result = RETURN_PENDING;
 268                 vdev_queue_cmd(pCmd);
 269                 return;
 270         }
 271
 272         *(int *)pCmd->priv = 1;
 273         wakeup(pCmd);
 274 }
 275
 276 /*
 277  * flush a vdev (without retry).
 278  */
 279 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
 280 {
 281         PCOMMAND pCmd;
 282         int result = 0, done;
 283         HPT_UINT count;
 284
 285         KdPrint(("flusing dev %p", vd));
 286
 287         hpt_lock_vbus(vbus_ext);
 288
 289         if (mIsArray(vd->type) && vd->u.array.transform)
 290                 count = MAX(vd->u.array.transform->source->cmds_per_request,
 291                                         vd->u.array.transform->target->cmds_per_request);
 292         else
 293                 count = vd->cmds_per_request;
 294
 295         pCmd = ldm_alloc_cmds(vd->vbus, count);
 296
 297         if (!pCmd) {
 298                 hpt_unlock_vbus(vbus_ext);
 299                 return -1;
 300         }
 301
 302         pCmd->type = CMD_TYPE_FLUSH;
 303         pCmd->flags.hard_flush = 1;
 304         pCmd->target = vd;
 305         pCmd->done = hpt_flush_done;
 306         done = 0;
 307         pCmd->priv = &done;
 308
 309         ldm_queue_cmd(pCmd);
 310
 311         if (!done) {
 312                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
 313                         ldm_reset_vbus(vd->vbus);
 314                 }
 315         }
 316
 317         KdPrint(("flush result %d", pCmd->Result));
 318
 319         if (pCmd->Result!=RETURN_SUCCESS)
 320                 result = -1;
 321
 322         ldm_free_cmds(pCmd);
 323
 324         hpt_unlock_vbus(vbus_ext);
 325
 326         return result;
 327 }
 328
 329 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
 330 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
 331 {
 332         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
 333         PHBA hba;
 334         int i;
 335
 336         KdPrint(("hpt_shutdown_vbus"));
 337
 338         /* stop all ctl tasks and disable the worker taskqueue */
 339         hpt_stop_tasks(vbus_ext);
 340         vbus_ext->worker.ta_context = NULL;
 341
 342         /* flush devices */
 343         for (i=0; i<osm_max_targets; i++) {
 344                 PVDEV vd = ldm_find_target(vbus, i);
 345                 if (vd) {
 346                         /* retry once */
 347                         if (hpt_flush_vdev(vbus_ext, vd))
 348                                 hpt_flush_vdev(vbus_ext, vd);
 349                 }
 350         }
 351
 352         hpt_lock_vbus(vbus_ext);
 353         ldm_shutdown(vbus);
 354         hpt_unlock_vbus(vbus_ext);
 355
 356         ldm_release_vbus(vbus);
 357
 358         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
 359                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
 360
 361         hpt_free_mem(vbus_ext);
 362
 363         while ((hba=vbus_ext->hba_list)) {
 364                 vbus_ext->hba_list = hba->next;
 365                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
 366         }
 367
 368         kfree(vbus_ext, M_DEVBUF);
 369         KdPrint(("hpt_shutdown_vbus done"));
 370 }
 371
 372 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
 373 {
 374         OSM_TASK *tasks;
 375
 376         tasks = vbus_ext->tasks;
 377         vbus_ext->tasks = NULL;
 378
 379         while (tasks) {
 380                 OSM_TASK *t = tasks;
 381                 tasks = t->next;
 382                 t->next = NULL;
 383                 t->func(vbus_ext->vbus, t->data);
 384         }
 385 }
 386
 387 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
 388 {
 389         if(vbus_ext){
 390                 hpt_lock_vbus(vbus_ext);
 391                 __hpt_do_tasks(vbus_ext);
 392                 hpt_unlock_vbus(vbus_ext);
 393         }
 394 }
 395
 396 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
 397 static void hpt_poll(struct cam_sim *sim);
 398 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
 399 static void hpt_pci_intr(void *arg);
 400
 401 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
 402 {
 403         POS_CMDEXT p = vbus_ext->cmdext_list;
 404         if (p)
 405                 vbus_ext->cmdext_list = p->next;
 406         return p;
 407 }
 408
 409 static __inline void cmdext_put(POS_CMDEXT p)
 410 {
 411         p->next = p->vbus_ext->cmdext_list;
 412         p->vbus_ext->cmdext_list = p;
 413 }
 414
 415 static void hpt_timeout(void *arg)
 416 {
 417         PCOMMAND pCmd = (PCOMMAND)arg;
 418         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 419
 420         KdPrint(("pCmd %p timeout", pCmd));
 421
 422         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
 423 }
 424
 425 static void os_cmddone(PCOMMAND pCmd)
 426 {
 427         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 428         union ccb *ccb = ext->ccb;
 429
 430         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
 431
 432         callout_stop(&ccb->ccb_h.timeout_ch);
 433
 434         switch(pCmd->Result) {
 435         case RETURN_SUCCESS:
 436                 ccb->ccb_h.status = CAM_REQ_CMP;
 437                 break;
 438         case RETURN_BAD_DEVICE:
 439                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 440                 break;
 441         case RETURN_DEVICE_BUSY:
 442                 ccb->ccb_h.status = CAM_BUSY;
 443                 break;
 444         case RETURN_INVALID_REQUEST:
 445                 ccb->ccb_h.status = CAM_REQ_INVALID;
 446                 break;
 447         case RETURN_SELECTION_TIMEOUT:
 448                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 449                 break;
 450         case RETURN_RETRY:
 451                 ccb->ccb_h.status = CAM_BUSY;
 452                 break;
 453         default:
 454                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
 455                 break;
 456         }
 457
 458         if (pCmd->flags.data_in) {
 459                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
 460         }
 461         else if (pCmd->flags.data_out) {
 462                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
 463         }
 464
 465         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
 466
 467         cmdext_put(ext);
 468         ldm_free_cmds(pCmd);
 469         xpt_done(ccb);
 470 }
 471
 472 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
 473 {
 474         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 475         union ccb *ccb = ext->ccb;
 476         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 477         int idx;
 478
 479         if(logical)     {
 480                 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
 481                         panic("physical address unsupported");
 482
 483                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 484                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 485                                 panic("physical address unsupported");
 486
 487                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 488                                 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
 489                                 pSg[idx].size = sgList[idx].ds_len;
 490                                 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 491                         }
 492                 }
 493                 else {
 494                         os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
 495                         pSg->size = ccb->csio.dxfer_len;
 496                         pSg->eot = 1;
 497                 }
 498                 return TRUE;
 499         }
 500
 501         /* since we have provided physical sg, nobody will ask us to build physical sg */
 502         HPT_ASSERT(0);
 503         return FALSE;
 504 }
 505
 506 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 507 {
 508         PCOMMAND pCmd = (PCOMMAND)arg;
 509         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
 510         PSG psg = pCmd->psg;
 511         int idx;
 512
 513         HPT_ASSERT(pCmd->flags.physical_sg);
 514
 515         if (error || nsegs == 0)
 516                 panic("busdma error");
 517
 518         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
 519
 520         for (idx = 0; idx < nsegs; idx++, psg++) {
 521                 psg->addr.bus = segs[idx].ds_addr;
 522                 psg->size = segs[idx].ds_len;
 523                 psg->eot = 0;
 524         }
 525         psg[-1].eot = 1;
 526
 527         if (pCmd->flags.data_in) {
 528                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
 529         }
 530         else if (pCmd->flags.data_out) {
 531                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
 532         }
 533
 534         callout_reset(&ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 535         ldm_queue_cmd(pCmd);
 536 }
 537
 538 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
 539 {
 540         PVBUS vbus = (PVBUS)vbus_ext->vbus;
 541         PVDEV vd;
 542         PCOMMAND pCmd;
 543         POS_CMDEXT ext;
 544         HPT_U8 *cdb;
 545
 546         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 547                 cdb = ccb->csio.cdb_io.cdb_ptr;
 548         else
 549                 cdb = ccb->csio.cdb_io.cdb_bytes;
 550
 551         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
 552                 ccb,
 553                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
 554                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
 555         ));
 556
 557         /* ccb->ccb_h.path_id is not our bus id - don't check it */
 558         if (ccb->ccb_h.target_lun != 0 ||
 559                 ccb->ccb_h.target_id >= osm_max_targets ||
 560                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
 561         {
 562                 ccb->ccb_h.status = CAM_TID_INVALID;
 563                 xpt_done(ccb);
 564                 return;
 565         }
 566
 567         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
 568
 569         if (!vd) {
 570                 ccb->ccb_h.status = CAM_TID_INVALID;
 571                 xpt_done(ccb);
 572                 return;
 573         }
 574
 575         switch (cdb[0]) {
 576         case TEST_UNIT_READY:
 577         case START_STOP_UNIT:
 578         case SYNCHRONIZE_CACHE:
 579                 ccb->ccb_h.status = CAM_REQ_CMP;
 580                 break;
 581
 582         case INQUIRY:
 583                 {
 584                         PINQUIRYDATA inquiryData;
 585                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
 586                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
 587
 588                         inquiryData->AdditionalLength = 31;
 589                         inquiryData->CommandQueue = 1;
 590                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
 591                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
 592
 593                         if (vd->target_id / 10) {
 594                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
 595                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
 596                         }
 597                         else
 598                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
 599
 600                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
 601
 602                         ccb->ccb_h.status = CAM_REQ_CMP;
 603                 }
 604                 break;
 605
 606         case READ_CAPACITY:
 607         {
 608                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 609                 HPT_U32 cap;
 610
 611                 if (vd->capacity>0xfffffffful)
 612                         cap = 0xfffffffful;
 613                 else
 614                         cap = vd->capacity - 1;
 615
 616                 rbuf[0] = (HPT_U8)(cap>>24);
 617                 rbuf[1] = (HPT_U8)(cap>>16);
 618                 rbuf[2] = (HPT_U8)(cap>>8);
 619                 rbuf[3] = (HPT_U8)cap;
 620                 rbuf[4] = 0;
 621                 rbuf[5] = 0;
 622                 rbuf[6] = 2;
 623                 rbuf[7] = 0;
 624
 625                 ccb->ccb_h.status = CAM_REQ_CMP;
 626                 break;
 627         }
 628
 629         case SERVICE_ACTION_IN:
 630         {
 631                 HPT_U8 *rbuf = ccb->csio.data_ptr;
 632                 HPT_U64 cap = vd->capacity - 1;
 633
 634                 rbuf[0] = (HPT_U8)(cap>>56);
 635                 rbuf[1] = (HPT_U8)(cap>>48);
 636                 rbuf[2] = (HPT_U8)(cap>>40);
 637                 rbuf[3] = (HPT_U8)(cap>>32);
 638                 rbuf[4] = (HPT_U8)(cap>>24);
 639                 rbuf[5] = (HPT_U8)(cap>>16);
 640                 rbuf[6] = (HPT_U8)(cap>>8);
 641                 rbuf[7] = (HPT_U8)cap;
 642                 rbuf[8] = 0;
 643                 rbuf[9] = 0;
 644                 rbuf[10] = 2;
 645                 rbuf[11] = 0;
 646
 647                 ccb->ccb_h.status = CAM_REQ_CMP;
 648                 break;
 649         }
 650
 651         case READ_6:
 652         case READ_10:
 653         case READ_16:
 654         case WRITE_6:
 655         case WRITE_10:
 656         case WRITE_16:
 657         case 0x13:
 658         case 0x2f:
 659         case 0x8f: /* VERIFY_16 */
 660         {
 661                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
 662                 if(!pCmd){
 663                         KdPrint(("Failed to allocate command!"));
 664                         ccb->ccb_h.status = CAM_BUSY;
 665                         break;
 666                 }
 667
 668                 switch (cdb[0]) {
 669                 case READ_6:
 670                 case WRITE_6:
 671                 case 0x13:
 672                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
 673                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
 674                         break;
 675                 case READ_16:
 676                 case WRITE_16:
 677                 case 0x8f: /* VERIFY_16 */
 678                 {
 679                         HPT_U64 block =
 680                                 ((HPT_U64)cdb[2]<<56) |
 681                                 ((HPT_U64)cdb[3]<<48) |
 682                                 ((HPT_U64)cdb[4]<<40) |
 683                                 ((HPT_U64)cdb[5]<<32) |
 684                                 ((HPT_U64)cdb[6]<<24) |
 685                                 ((HPT_U64)cdb[7]<<16) |
 686                                 ((HPT_U64)cdb[8]<<8) |
 687                                 ((HPT_U64)cdb[9]);
 688                         pCmd->uCmd.Ide.Lba = block;
 689                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
 690                         break;
 691                 }
 692
 693                 default:
 694                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
 695                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
 696                         break;
 697                 }
 698
 699                 switch (cdb[0]) {
 700                 case READ_6:
 701                 case READ_10:
 702                 case READ_16:
 703                         pCmd->flags.data_in = 1;
 704                         break;
 705                 case WRITE_6:
 706                 case WRITE_10:
 707                 case WRITE_16:
 708                         pCmd->flags.data_out = 1;
 709                         break;
 710                 }
 711                 pCmd->priv = ext = cmdext_get(vbus_ext);
 712                 HPT_ASSERT(ext);
 713                 ext->ccb = ccb;
 714                 pCmd->target = vd;
 715                 pCmd->done = os_cmddone;
 716                 pCmd->buildsgl = os_buildsgl;
 717
 718                 pCmd->psg = ext->psg;
 719
 720                 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
 721                         int idx;
 722                         bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
 723
 724                         if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
 725                                 pCmd->flags.physical_sg = 1;
 726
 727                         for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
 728                                 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
 729                                 pCmd->psg[idx].size = sgList[idx].ds_len;
 730                                 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
 731                         }
 732
 733                         callout_reset(&ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
 734                         ldm_queue_cmd(pCmd);
 735                 }
 736                 else {
 737                         int error;
 738                         pCmd->flags.physical_sg = 1;
 739                         error = bus_dmamap_load(vbus_ext->io_dmat,
 740                                                 ext->dma_map,
 741                                                 ccb->csio.data_ptr, ccb->csio.dxfer_len,
 742                                                 hpt_io_dmamap_callback, pCmd,
 743                                         BUS_DMA_WAITOK
 744                                         );
 745                         KdPrint(("bus_dmamap_load return %d", error));
 746                         if (error && error!=EINPROGRESS) {
 747                                 os_printk("bus_dmamap_load error %d", error);
 748                                 cmdext_put(ext);
 749                                 ldm_free_cmds(pCmd);
 750                                 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 751                                 xpt_done(ccb);
 752                         }
 753                 }
 754                 return;
 755         }
 756
 757         default:
 758                 ccb->ccb_h.status = CAM_REQ_INVALID;
 759                 break;
 760         }
 761
 762         xpt_done(ccb);
 763         return;
 764 }
 765
 766 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
 767 {
 768         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
 769
 770         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
 771
 772         switch (ccb->ccb_h.func_code) {
 773
 774         case XPT_SCSI_IO:
 775                 hpt_lock_vbus(vbus_ext);
 776                 hpt_scsi_io(vbus_ext, ccb);
 777                 hpt_unlock_vbus(vbus_ext);
 778                 return;
 779
 780         case XPT_RESET_BUS:
 781                 hpt_lock_vbus(vbus_ext);
 782                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 783                 hpt_unlock_vbus(vbus_ext);
 784                 break;
 785
 786         case XPT_GET_TRAN_SETTINGS:
 787         case XPT_SET_TRAN_SETTINGS:
 788                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 789                 break;
 790
 791         case XPT_CALC_GEOMETRY:
 792                 ccb->ccg.heads = 255;
 793                 ccb->ccg.secs_per_track = 63;
 794                 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
 795                 ccb->ccb_h.status = CAM_REQ_CMP;
 796                 break;
 797
 798         case XPT_PATH_INQ:
 799         {
 800                 struct ccb_pathinq *cpi = &ccb->cpi;
 801
 802                 cpi->version_num = 1;
 803                 cpi->hba_inquiry = PI_SDTR_ABLE;
 804                 cpi->target_sprt = 0;
 805                 cpi->hba_misc = PIM_NOBUSRESET;
 806                 cpi->hba_eng_cnt = 0;
 807                 cpi->max_target = osm_max_targets;
 808                 cpi->max_lun = 0;
 809                 cpi->unit_number = cam_sim_unit(sim);
 810                 cpi->bus_id = cam_sim_bus(sim);
 811                 cpi->initiator_id = osm_max_targets;
 812                 cpi->base_transfer_speed = 3300;
 813
 814                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 815                 strncpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
 816                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 817                 cpi->transport = XPORT_SPI;
 818                 cpi->transport_version = 2;
 819                 cpi->protocol = PROTO_SCSI;
 820                 cpi->protocol_version = SCSI_REV_2;
 821                 cpi->maxio = HPT27XX_DFLTPHYS;
 822                 cpi->ccb_h.status = CAM_REQ_CMP;
 823                 break;
 824         }
 825
 826         default:
 827                 ccb->ccb_h.status = CAM_REQ_INVALID;
 828                 break;
 829         }
 830
 831         xpt_done(ccb);
 832         return;
 833 }
 834
 835 static void hpt_pci_intr(void *arg)
 836 {
 837         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
 838         hpt_lock_vbus(vbus_ext);
 839         ldm_intr((PVBUS)vbus_ext->vbus);
 840         hpt_unlock_vbus(vbus_ext);
 841 }
 842
 843 static void hpt_poll(struct cam_sim *sim)
 844 {
 845         hpt_pci_intr(cam_sim_softc(sim));
 846 }
 847
 848 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
 849 {
 850         KdPrint(("hpt_async"));
 851 }
 852
 853 static int hpt_shutdown(device_t dev)
 854 {
 855         KdPrint(("hpt_shutdown(dev=%p)", dev));
 856         return 0;
 857 }
 858
 859 static int hpt_detach(device_t dev)
 860 {
 861         /* we don't allow the driver to be unloaded. */
 862         return EBUSY;
 863 }
 864
 865 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
 866 {
 867         arg->ioctl_cmnd = NULL;
 868         wakeup(arg);
 869 }
 870
 871 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
 872 {
 873         ioctl_args->result = -1;
 874         ioctl_args->done = hpt_ioctl_done;
 875         ioctl_args->ioctl_cmnd = (void *)1;
 876
 877         hpt_lock_vbus(vbus_ext);
 878         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
 879
 880         while (ioctl_args->ioctl_cmnd) {
 881                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
 882                         break;
 883                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
 884                 __hpt_do_tasks(vbus_ext);
 885         }
 886
 887         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
 888
 889         hpt_unlock_vbus(vbus_ext);
 890 }
 891
 892 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
 893 {
 894         PVBUS vbus;
 895         PVBUS_EXT vbus_ext;
 896
 897         ldm_for_each_vbus(vbus, vbus_ext) {
 898                 __hpt_do_ioctl(vbus_ext, ioctl_args);
 899                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
 900                         return;
 901         }
 902 }
 903
 904 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
 905         IOCTL_ARG arg;\
 906         arg.dwIoControlCode = code;\
 907         arg.lpInBuffer = inbuf;\
 908         arg.lpOutBuffer = outbuf;\
 909         arg.nInBufferSize = insize;\
 910         arg.nOutBufferSize = outsize;\
 911         arg.lpBytesReturned = NULL;\
 912         hpt_do_ioctl(&arg);\
 913         arg.result;\
 914 })
 915
 916 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
 917
 918 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
 919 {
 920         int i;
 921         HPT_U32 count = nMaxCount-1;
 922
 923         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
 924                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
 925                 return -1;
 926
 927         nMaxCount = (int)pIds[0];
 928         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
 929         return nMaxCount;
 930 }
 931
 932 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
 933 {
 934         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
 935                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
 936 }
 937
 938 /* not belong to this file logically, but we want to use ioctl interface */
 939 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
 940 {
 941         LOGICAL_DEVICE_INFO_V3 devinfo;
 942         int i, result;
 943         DEVICEID param[2] = { id, 0 };
 944
 945         if (hpt_get_device_info_v3(id, &devinfo))
 946                 return -1;
 947
 948         if (devinfo.Type!=LDT_ARRAY)
 949                 return -1;
 950
 951         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
 952                 param[1] = AS_REBUILD_ABORT;
 953         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
 954                 param[1] = AS_VERIFY_ABORT;
 955         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
 956                 param[1] = AS_INITIALIZE_ABORT;
 957         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
 958                 param[1] = AS_TRANSFORM_ABORT;
 959         else
 960                 return -1;
 961
 962         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
 963         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
 964                                 param, sizeof(param), 0, 0);
 965
 966         for (i=0; i<devinfo.u.array.nDisk; i++)
 967                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
 968                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
 969
 970         return result;
 971 }
 972
 973 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
 974 {
 975         DEVICEID ids[32];
 976         int i, count;
 977
 978         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
 979
 980         for (i=0; i<count; i++)
 981                 __hpt_stop_tasks(vbus_ext, ids[i]);
 982 }
 983
 984 static  d_open_t        hpt_open;
 985 static  d_close_t       hpt_close;
 986 static  d_ioctl_t       hpt_ioctl;
 987 static  void            hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
 988 static  int             hpt_rescan_bus(void);
 989
 990 static struct dev_ops hpt_ops = {
 991         { driver_name, 0, 0 },
 992         .d_open =       hpt_open,
 993         .d_close =      hpt_close,
 994         .d_ioctl =      hpt_ioctl,
 995 };
 996
 997 static struct intr_config_hook hpt_ich;
 998
 999 /*
1000  * hpt_final_init will be called after all hpt_attach.
1001  */
1002 static void hpt_final_init(void *dummy)
1003 {
1004         int       i;
1005         PVBUS_EXT vbus_ext;
1006         PVBUS vbus;
1007         PHBA hba;
1008
1009         /* Clear the config hook */
1010         config_intrhook_disestablish(&hpt_ich);
1011
1012         /* allocate memory */
1013         i = 0;
1014         ldm_for_each_vbus(vbus, vbus_ext) {
1015                 if (hpt_alloc_mem(vbus_ext)) {
1016                         os_printk("out of memory");
1017                         return;
1018                 }
1019                 i++;
1020         }
1021
1022         if (!i) {
1023                         os_printk("no controller detected.");
1024                 return;
1025         }
1026
1027         /* initializing hardware */
1028         ldm_for_each_vbus(vbus, vbus_ext) {
1029                 /* make timer available here */
1030                 callout_init(&vbus_ext->timer);
1031                 if (hpt_init_vbus(vbus_ext)) {
1032                         os_printk("fail to initialize hardware");
1033                         break; /* FIXME */
1034                 }
1035         }
1036
1037         /* register CAM interface */
1038         ldm_for_each_vbus(vbus, vbus_ext) {
1039                 struct cam_devq *devq;
1040                 struct ccb_setasync     ccb;
1041
1042                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1043                 if (bus_dma_tag_create(NULL,/* parent */
1044                                 4,      /* alignment */
1045                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1046                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1047                                 BUS_SPACE_MAXADDR,      /* highaddr */
1048                                 NULL, NULL,             /* filter, filterarg */
1049                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1050                                 os_max_sg_descriptors,  /* nsegments */
1051                                 0x10000,        /* maxsegsize */
1052                                 BUS_DMA_WAITOK,         /* flags */
1053                                 &vbus_ext->io_dmat      /* tag */))
1054                 {
1055                         return ;
1056                 }
1057
1058                 for (i=0; i<os_max_queue_comm; i++) {
1059                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1060                         if (!ext) {
1061                                 os_printk("Can't alloc cmdext(%d)", i);
1062                                 return ;
1063                         }
1064                         ext->vbus_ext = vbus_ext;
1065                         ext->next = vbus_ext->cmdext_list;
1066                         vbus_ext->cmdext_list = ext;
1067
1068                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1069                                 os_printk("Can't create dma map(%d)", i);
1070                                 return ;
1071                         }
1072                 }
1073
1074                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1075                         os_printk("cam_simq_alloc failed");
1076                         return ;
1077                 }
1078
1079                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1080                                 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8,  devq);
1081
1082                 if (!vbus_ext->sim) {
1083                         os_printk("cam_sim_alloc failed");
1084                         cam_simq_release(devq);
1085                         return ;
1086                 }
1087                 cam_simq_release(devq);
1088
1089                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1090                         os_printk("xpt_bus_register failed");
1091                         cam_sim_free(vbus_ext->sim);
1092                         vbus_ext->sim = NULL;
1093                         return ;
1094                 }
1095
1096                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1097                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1098                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1099                 {
1100                         os_printk("xpt_create_path failed");
1101                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1102                         cam_sim_free(vbus_ext->sim);
1103                         vbus_ext->sim = NULL;
1104                         return ;
1105                 }
1106
1107                 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1108                 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1109                 ccb.event_enable = AC_LOST_DEVICE;
1110                 ccb.callback = hpt_async;
1111                 ccb.callback_arg = vbus_ext;
1112                 xpt_action((union ccb *)&ccb);
1113
1114                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1115                         int rid = 0;
1116                         if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1117                                 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1118                         {
1119                                 os_printk("can't allocate interrupt");
1120                                 return ;
1121                         }
1122
1123                         if (bus_setup_intr(hba->pcidev, hba->irq_res, 0,
1124                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1125                         {
1126                                 os_printk("can't set up interrupt");
1127                                 return ;
1128                         }
1129                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1130
1131                 }
1132
1133                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1134                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1135                 if (!vbus_ext->shutdown_eh)
1136                         os_printk("Shutdown event registration failed");
1137         }
1138
1139         ldm_for_each_vbus(vbus, vbus_ext) {
1140                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1141                 if (vbus_ext->tasks)
1142                         TASK_ENQUEUE(&vbus_ext->worker);
1143         }
1144
1145         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1146             S_IRUSR | S_IWUSR, driver_name);
1147 }
1148
1149 #if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
1150
1151 typedef struct driverlink *driverlink_t;
1152 struct driverlink {
1153         kobj_class_t    driver;
1154         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1155 };
1156
1157 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1158
1159 struct devclass {
1160         TAILQ_ENTRY(devclass) link;
1161         devclass_t      parent;         /* parent in devclass hierarchy */
1162         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1163         char            *name;
1164         device_t        *devices;       /* array of devices indexed by unit */
1165         int             maxunit;        /* size of devices array */
1166 };
1167
1168 static void override_kernel_driver(void)
1169 {
1170         driverlink_t dl, dlfirst;
1171         driver_t *tmpdriver;
1172         devclass_t dc = devclass_find("pci");
1173
1174         if (dc){
1175                 dlfirst = TAILQ_FIRST(&dc->drivers);
1176                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1177                         if(strcmp(dl->driver->name, driver_name) == 0) {
1178                                 tmpdriver=dl->driver;
1179                                 dl->driver=dlfirst->driver;
1180                                 dlfirst->driver=tmpdriver;
1181                                 break;
1182                         }
1183                 }
1184         }
1185 }
1186
1187 #else
1188 #define override_kernel_driver()
1189 #endif
1190
1191 static void hpt_init(void *dummy)
1192 {
1193                 os_printk("%s %s", driver_name_long, driver_ver);
1194
1195         override_kernel_driver();
1196         init_config();
1197
1198         hpt_ich.ich_func = hpt_final_init;
1199         hpt_ich.ich_arg = NULL;
1200         if (config_intrhook_establish(&hpt_ich) != 0) {
1201                 kprintf("%s: cannot establish configuration hook\n",
1202                     driver_name_long);
1203         }
1204
1205 }
1206 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1207
1208 /*
1209  * CAM driver interface
1210  */
1211 static device_method_t driver_methods[] = {
1212         /* Device interface */
1213         DEVMETHOD(device_probe,         hpt_probe),
1214         DEVMETHOD(device_attach,        hpt_attach),
1215         DEVMETHOD(device_detach,        hpt_detach),
1216         DEVMETHOD(device_shutdown,      hpt_shutdown),
1217         { 0, 0 }
1218 };
1219
1220 static driver_t hpt_pci_driver = {
1221         driver_name,
1222         driver_methods,
1223         sizeof(HBA)
1224 };
1225
1226 static devclass_t       hpt_devclass;
1227
1228 #ifndef TARGETNAME
1229 #error "no TARGETNAME found"
1230 #endif
1231
1232 /* use this to make TARGETNAME be expanded */
1233 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1234 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1235 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1236 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
1237 __MODULE_VERSION(TARGETNAME, 1);
1238 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1239
1240 typedef struct cdev * ioctl_dev_t;
1241
1242 typedef struct thread * ioctl_thread_t;
1243
1244 static int hpt_open(struct dev_open_args *ap)
1245 {
1246         return 0;
1247 }
1248
1249 static int hpt_close(struct dev_close_args *ap)
1250 {
1251         return 0;
1252 }
1253
1254 static int hpt_ioctl(struct dev_ioctl_args *ap)
1255 {
1256         u_long cmd = ap->a_cmd;
1257         caddr_t data = ap->a_data;
1258         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1259         IOCTL_ARG ioctl_args;
1260         HPT_U32 bytesReturned;
1261
1262         switch (cmd){
1263         case HPT_DO_IOCONTROL:
1264         {
1265                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1266                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1267                                 piop->dwIoControlCode,
1268                                 piop->lpInBuffer,
1269                                 piop->nInBufferSize,
1270                                 piop->lpOutBuffer,
1271                                 piop->nOutBufferSize));
1272
1273                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1274
1275                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1276                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1277                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1278                 ioctl_args.lpBytesReturned = &bytesReturned;
1279
1280                 if (ioctl_args.nInBufferSize) {
1281                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1282                         if (!ioctl_args.lpInBuffer)
1283                                 goto invalid;
1284                         if (copyin((void*)piop->lpInBuffer,
1285                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1286                                 goto invalid;
1287                 }
1288
1289                 if (ioctl_args.nOutBufferSize) {
1290                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1291                         if (!ioctl_args.lpOutBuffer)
1292                                 goto invalid;
1293                 }
1294
1295                 get_mplock();
1296
1297                 hpt_do_ioctl(&ioctl_args);
1298
1299                 rel_mplock();
1300
1301                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1302                         if (piop->nOutBufferSize) {
1303                                 if (copyout(ioctl_args.lpOutBuffer,
1304                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1305                                         goto invalid;
1306                         }
1307                         if (piop->lpBytesReturned) {
1308                                 if (copyout(&bytesReturned,
1309                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1310                                         goto invalid;
1311                         }
1312                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1313                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1314                         return 0;
1315                 }
1316 invalid:
1317                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1318                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1319                 return EFAULT;
1320         }
1321         return EFAULT;
1322         }
1323
1324         case HPT_SCAN_BUS:
1325         {
1326                 return hpt_rescan_bus();
1327         }
1328         default:
1329                 KdPrint(("invalid command!"));
1330                 return EFAULT;
1331         }
1332
1333 }
1334
1335 static int      hpt_rescan_bus(void)
1336 {
1337         struct cam_path         *path;
1338         union ccb                       *ccb;
1339         PVBUS                           vbus;
1340         PVBUS_EXT                       vbus_ext;
1341
1342         get_mplock();
1343
1344         ldm_for_each_vbus(vbus, vbus_ext) {
1345                 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vbus_ext->sim),
1346                         CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1347                         return(EIO);
1348                 if ((ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK)) == NULL)
1349                         return(ENOMEM);
1350                 bzero(ccb, sizeof(union ccb));
1351                 xpt_setup_ccb(&ccb->ccb_h, path, 5);
1352                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1353                 ccb->ccb_h.cbfcnp = hpt_bus_scan_cb;
1354                 ccb->crcn.flags = CAM_FLAG_NONE;
1355                 xpt_action(ccb);
1356         }
1357
1358         rel_mplock();
1359
1360         return(0);
1361 }
1362
1363 static  void    hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
1364 {
1365         if (ccb->ccb_h.status != CAM_REQ_CMP)
1366                 KdPrint(("cam_scan_callback: failure status = %x",ccb->ccb_h.status));
1367         else
1368                 KdPrint(("Scan bus successfully!"));
1369
1370         xpt_free_path(ccb->ccb_h.path);
1371         kfree(ccb, M_TEMP);
1372         return;
1373 }