sys/dev/raid/hptrr/hptrr_osm_bsd.c

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