1 /* 2 * Copyright (c) HighPoint Technologies, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/hptrr/hptrr_osm_bsd.c,v 1.10 2012/06/17 02:46:27 eadler Exp $ 27 */ 28 29 #include <dev/raid/hptrr/hptrr_config.h> 30 /* $Id: osm_bsd.c,v 1.27 2007/11/22 07:35:49 gmm Exp $ 31 * 32 * HighPoint RAID Driver for FreeBSD 33 * Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved. 34 */ 35 #include <dev/raid/hptrr/os_bsd.h> 36 #include <dev/raid/hptrr/hptintf.h> 37 38 static int attach_generic = 0; 39 TUNABLE_INT("hw.hptrr.attach_generic", &attach_generic); 40 41 static int hpt_probe(device_t dev) 42 { 43 PCI_ID pci_id; 44 HIM *him; 45 int i; 46 PHBA hba; 47 48 /* Some of supported chips are used not only by HPT. */ 49 if (pci_get_vendor(dev) != 0x1103 && !attach_generic) 50 return (ENXIO); 51 for (him = him_list; him; him = him->next) { 52 for (i=0; him->get_supported_device_id(i, &pci_id); i++) { 53 if ((pci_get_vendor(dev) == pci_id.vid) && 54 (pci_get_device(dev) == pci_id.did)){ 55 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d", 56 pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev) 57 )); 58 device_set_desc(dev, him->name); 59 hba = (PHBA)device_get_softc(dev); 60 memset(hba, 0, sizeof(HBA)); 61 hba->ext_type = EXT_TYPE_HBA; 62 hba->ldm_adapter.him = him; 63 return 0; 64 } 65 } 66 } 67 68 return (ENXIO); 69 } 70 71 static int hpt_attach(device_t dev) 72 { 73 PHBA hba = (PHBA)device_get_softc(dev); 74 HIM *him = hba->ldm_adapter.him; 75 PCI_ID pci_id; 76 HPT_UINT size; 77 PVBUS vbus; 78 PVBUS_EXT vbus_ext; 79 80 KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev))); 81 82 pci_enable_busmaster(dev); 83 84 pci_id.vid = pci_get_vendor(dev); 85 pci_id.did = pci_get_device(dev); 86 pci_id.rev = pci_get_revid(dev); 87 88 size = him->get_adapter_size(&pci_id); 89 hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK); 90 if (!hba->ldm_adapter.him_handle) 91 return ENXIO; 92 93 hba->pcidev = dev; 94 hba->pciaddr.tree = 0; 95 hba->pciaddr.bus = pci_get_bus(dev); 96 hba->pciaddr.device = pci_get_slot(dev); 97 hba->pciaddr.function = pci_get_function(dev); 98 99 if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) { 100 kfree(hba->ldm_adapter.him_handle, M_DEVBUF); 101 return -1; 102 } 103 104 os_printk("adapter at PCI %d:%d:%d, IRQ %d", 105 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev)); 106 107 if (!ldm_register_adapter(&hba->ldm_adapter)) { 108 size = ldm_get_vbus_size(); 109 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK); 110 if (!vbus_ext) { 111 kfree(hba->ldm_adapter.him_handle, M_DEVBUF); 112 return -1; 113 } 114 memset(vbus_ext, 0, sizeof(VBUS_EXT)); 115 vbus_ext->ext_type = EXT_TYPE_VBUS; 116 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext); 117 ldm_register_adapter(&hba->ldm_adapter); 118 } 119 120 ldm_for_each_vbus(vbus, vbus_ext) { 121 if (hba->ldm_adapter.vbus==vbus) { 122 hba->vbus_ext = vbus_ext; 123 hba->next = vbus_ext->hba_list; 124 vbus_ext->hba_list = hba; 125 break; 126 } 127 } 128 return 0; 129 } 130 131 /* 132 * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory, 133 * but there are some problems currently (alignment, etc). 134 */ 135 static __inline void *__get_free_pages(int order) 136 { 137 /* don't use low memory - other devices may get starved */ 138 return contigmalloc(PAGE_SIZE<<order, 139 M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0); 140 } 141 142 static __inline void free_pages(void *p, int order) 143 { 144 contigfree(p, PAGE_SIZE<<order, M_DEVBUF); 145 } 146 147 static int hpt_alloc_mem(PVBUS_EXT vbus_ext) 148 { 149 PHBA hba; 150 struct freelist *f; 151 HPT_UINT i; 152 void **p; 153 154 for (hba = vbus_ext->hba_list; hba; hba = hba->next) 155 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle); 156 157 ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0); 158 159 for (f=vbus_ext->freelist_head; f; f=f->next) { 160 KdPrint(("%s: %d*%d=%d bytes", 161 f->tag, f->count, f->size, f->count*f->size)); 162 for (i=0; i<f->count; i++) { 163 p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK); 164 if (!p) return (ENXIO); 165 *p = f->head; 166 f->head = p; 167 } 168 } 169 170 for (f=vbus_ext->freelist_dma_head; f; f=f->next) { 171 int order, size, j; 172 173 HPT_ASSERT((f->size & (f->alignment-1))==0); 174 175 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ; 176 177 KdPrint(("%s: %d*%d=%d bytes, order %d", 178 f->tag, f->count, f->size, f->count*f->size, order)); 179 HPT_ASSERT(f->alignment<=PAGE_SIZE); 180 181 for (i=0; i<f->count;) { 182 p = (void **)__get_free_pages(order); 183 if (!p) return -1; 184 for (j = size/f->size; j && i<f->count; i++,j--) { 185 *p = f->head; 186 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p); 187 f->head = p; 188 p = (void **)((unsigned long)p + f->size); 189 } 190 } 191 } 192 193 HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE); 194 195 for (i=0; i<os_max_cache_pages; i++) { 196 p = (void **)__get_free_pages(0); 197 if (!p) return -1; 198 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0); 199 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p)); 200 } 201 202 return 0; 203 } 204 205 static void hpt_free_mem(PVBUS_EXT vbus_ext) 206 { 207 struct freelist *f; 208 void *p; 209 int i; 210 BUS_ADDRESS bus; 211 212 for (f=vbus_ext->freelist_head; f; f=f->next) { 213 #if DBG 214 if (f->count!=f->reserved_count) { 215 KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count)); 216 } 217 #endif 218 while ((p=freelist_get(f))) 219 kfree(p, M_DEVBUF); 220 } 221 222 for (i=0; i<os_max_cache_pages; i++) { 223 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus); 224 HPT_ASSERT(p); 225 free_pages(p, 0); 226 } 227 228 for (f=vbus_ext->freelist_dma_head; f; f=f->next) { 229 int order, size; 230 #if DBG 231 if (f->count!=f->reserved_count) { 232 KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count)); 233 } 234 #endif 235 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ; 236 237 while ((p=freelist_get_dma(f, &bus))) { 238 if (order) 239 free_pages(p, order); 240 else { 241 /* can't free immediately since other blocks in this page may still be in the list */ 242 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0) 243 dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus); 244 } 245 } 246 } 247 248 while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus))) 249 free_pages(p, 0); 250 } 251 252 static int hpt_init_vbus(PVBUS_EXT vbus_ext) 253 { 254 PHBA hba; 255 256 for (hba = vbus_ext->hba_list; hba; hba = hba->next) 257 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) { 258 KdPrint(("fail to initialize %p", hba)); 259 return -1; 260 } 261 262 ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter); 263 return 0; 264 } 265 266 static void hpt_flush_done(PCOMMAND pCmd) 267 { 268 PVDEV vd = pCmd->target; 269 270 if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) { 271 vd = vd->u.array.transform->target; 272 HPT_ASSERT(vd); 273 pCmd->target = vd; 274 pCmd->Result = RETURN_PENDING; 275 vdev_queue_cmd(pCmd); 276 return; 277 } 278 279 *(int *)pCmd->priv = 1; 280 wakeup(pCmd); 281 } 282 283 /* 284 * flush a vdev (without retry). 285 */ 286 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd) 287 { 288 PCOMMAND pCmd; 289 int result = 0, done; 290 HPT_UINT count; 291 292 KdPrint(("flusing dev %p", vd)); 293 294 hpt_lock_vbus(vbus_ext); 295 296 if (mIsArray(vd->type) && vd->u.array.transform) 297 count = MAX(vd->u.array.transform->source->cmds_per_request, 298 vd->u.array.transform->target->cmds_per_request); 299 else 300 count = vd->cmds_per_request; 301 302 pCmd = ldm_alloc_cmds(vd->vbus, count); 303 304 if (!pCmd) { 305 hpt_unlock_vbus(vbus_ext); 306 return -1; 307 } 308 309 pCmd->type = CMD_TYPE_FLUSH; 310 pCmd->flags.hard_flush = 1; 311 pCmd->target = vd; 312 pCmd->done = hpt_flush_done; 313 done = 0; 314 pCmd->priv = &done; 315 316 ldm_queue_cmd(pCmd); 317 318 if (!done) { 319 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) { 320 ldm_reset_vbus(vd->vbus); 321 } 322 } 323 324 KdPrint(("flush result %d", pCmd->Result)); 325 326 if (pCmd->Result!=RETURN_SUCCESS) 327 result = -1; 328 329 ldm_free_cmds(pCmd); 330 331 hpt_unlock_vbus(vbus_ext); 332 333 return result; 334 } 335 336 static void hpt_stop_tasks(PVBUS_EXT vbus_ext); 337 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto) 338 { 339 PVBUS vbus = (PVBUS)vbus_ext->vbus; 340 PHBA hba; 341 int i; 342 343 KdPrint(("hpt_shutdown_vbus")); 344 345 /* stop all ctl tasks and disable the worker taskqueue */ 346 hpt_stop_tasks(vbus_ext); 347 vbus_ext->worker.ta_context = 0; 348 349 /* flush devices */ 350 for (i=0; i<osm_max_targets; i++) { 351 PVDEV vd = ldm_find_target(vbus, i); 352 if (vd) { 353 /* retry once */ 354 if (hpt_flush_vdev(vbus_ext, vd)) 355 hpt_flush_vdev(vbus_ext, vd); 356 } 357 } 358 359 hpt_lock_vbus(vbus_ext); 360 ldm_shutdown(vbus); 361 hpt_unlock_vbus(vbus_ext); 362 363 ldm_release_vbus(vbus); 364 365 for (hba=vbus_ext->hba_list; hba; hba=hba->next) 366 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle); 367 368 hpt_free_mem(vbus_ext); 369 370 while ((hba=vbus_ext->hba_list)) { 371 vbus_ext->hba_list = hba->next; 372 kfree(hba->ldm_adapter.him_handle, M_DEVBUF); 373 } 374 375 kfree(vbus_ext, M_DEVBUF); 376 KdPrint(("hpt_shutdown_vbus done")); 377 } 378 379 static void __hpt_do_tasks(PVBUS_EXT vbus_ext) 380 { 381 OSM_TASK *tasks; 382 383 tasks = vbus_ext->tasks; 384 vbus_ext->tasks = 0; 385 386 while (tasks) { 387 OSM_TASK *t = tasks; 388 tasks = t->next; 389 t->next = 0; 390 t->func(vbus_ext->vbus, t->data); 391 } 392 } 393 394 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending) 395 { 396 if(vbus_ext){ 397 hpt_lock_vbus(vbus_ext); 398 __hpt_do_tasks(vbus_ext); 399 hpt_unlock_vbus(vbus_ext); 400 } 401 } 402 403 static void hpt_action(struct cam_sim *sim, union ccb *ccb); 404 static void hpt_poll(struct cam_sim *sim); 405 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg); 406 static void hpt_pci_intr(void *arg); 407 408 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext) 409 { 410 POS_CMDEXT p = vbus_ext->cmdext_list; 411 if (p) 412 vbus_ext->cmdext_list = p->next; 413 return p; 414 } 415 416 static __inline void cmdext_put(POS_CMDEXT p) 417 { 418 p->next = p->vbus_ext->cmdext_list; 419 p->vbus_ext->cmdext_list = p; 420 } 421 422 static void hpt_timeout(void *arg) 423 { 424 PCOMMAND pCmd = (PCOMMAND)arg; 425 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv; 426 427 KdPrint(("pCmd %p timeout", pCmd)); 428 429 ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus); 430 } 431 432 static void os_cmddone(PCOMMAND pCmd) 433 { 434 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv; 435 union ccb *ccb = ext->ccb; 436 437 KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result)); 438 439 callout_stop(&ccb->ccb_h.timeout_ch); 440 441 switch(pCmd->Result) { 442 case RETURN_SUCCESS: 443 ccb->ccb_h.status = CAM_REQ_CMP; 444 break; 445 case RETURN_BAD_DEVICE: 446 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 447 break; 448 case RETURN_DEVICE_BUSY: 449 ccb->ccb_h.status = CAM_BUSY; 450 break; 451 case RETURN_INVALID_REQUEST: 452 ccb->ccb_h.status = CAM_REQ_INVALID; 453 break; 454 case RETURN_SELECTION_TIMEOUT: 455 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 456 break; 457 case RETURN_RETRY: 458 ccb->ccb_h.status = CAM_BUSY; 459 break; 460 default: 461 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; 462 break; 463 } 464 465 if (pCmd->flags.data_in) { 466 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD); 467 } 468 else if (pCmd->flags.data_out) { 469 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE); 470 } 471 472 bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map); 473 474 cmdext_put(ext); 475 ldm_free_cmds(pCmd); 476 xpt_done(ccb); 477 } 478 479 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical) 480 { 481 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv; 482 union ccb *ccb = ext->ccb; 483 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr; 484 int idx; 485 486 if(logical) { 487 if (ccb->ccb_h.flags & CAM_DATA_PHYS) 488 panic("physical address unsupported"); 489 490 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) { 491 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) 492 panic("physical address unsupported"); 493 494 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) { 495 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr); 496 pSg[idx].size = sgList[idx].ds_len; 497 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0; 498 } 499 } 500 else { 501 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr); 502 pSg->size = ccb->csio.dxfer_len; 503 pSg->eot = 1; 504 } 505 return TRUE; 506 } 507 508 /* since we have provided physical sg, nobody will ask us to build physical sg */ 509 HPT_ASSERT(0); 510 return FALSE; 511 } 512 513 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 514 { 515 PCOMMAND pCmd = (PCOMMAND)arg; 516 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv; 517 PSG psg = pCmd->psg; 518 int idx; 519 520 HPT_ASSERT(pCmd->flags.physical_sg); 521 522 if (error || nsegs == 0) 523 panic("busdma error"); 524 525 HPT_ASSERT(nsegs<=os_max_sg_descriptors); 526 527 for (idx = 0; idx < nsegs; idx++, psg++) { 528 psg->addr.bus = segs[idx].ds_addr; 529 psg->size = segs[idx].ds_len; 530 psg->eot = 0; 531 } 532 psg[-1].eot = 1; 533 534 if (pCmd->flags.data_in) { 535 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD); 536 } 537 else if (pCmd->flags.data_out) { 538 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE); 539 } 540 541 callout_reset(&ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd); 542 ldm_queue_cmd(pCmd); 543 } 544 545 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb) 546 { 547 PVBUS vbus = (PVBUS)vbus_ext->vbus; 548 PVDEV vd; 549 PCOMMAND pCmd; 550 POS_CMDEXT ext; 551 HPT_U8 *cdb; 552 553 if (ccb->ccb_h.flags & CAM_CDB_POINTER) 554 cdb = ccb->csio.cdb_io.cdb_ptr; 555 else 556 cdb = ccb->csio.cdb_io.cdb_bytes; 557 558 KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x", 559 ccb, 560 ccb->ccb_h.target_id, ccb->ccb_h.target_lun, 561 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8] 562 )); 563 564 /* ccb->ccb_h.path_id is not our bus id - don't check it */ 565 if (ccb->ccb_h.target_lun != 0 || 566 ccb->ccb_h.target_id >= osm_max_targets || 567 (ccb->ccb_h.flags & CAM_CDB_PHYS)) 568 { 569 ccb->ccb_h.status = CAM_TID_INVALID; 570 xpt_done(ccb); 571 return; 572 } 573 574 vd = ldm_find_target(vbus, ccb->ccb_h.target_id); 575 576 if (!vd) { 577 ccb->ccb_h.status = CAM_TID_INVALID; 578 xpt_done(ccb); 579 return; 580 } 581 582 switch (cdb[0]) { 583 case TEST_UNIT_READY: 584 case START_STOP_UNIT: 585 case SYNCHRONIZE_CACHE: 586 ccb->ccb_h.status = CAM_REQ_CMP; 587 break; 588 589 case INQUIRY: 590 { 591 PINQUIRYDATA inquiryData; 592 memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len); 593 inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr; 594 595 inquiryData->AdditionalLength = 31; 596 inquiryData->CommandQueue = 1; 597 memcpy(&inquiryData->VendorId, "HPT ", 8); 598 memcpy(&inquiryData->ProductId, "DISK 0_0 ", 16); 599 600 if (vd->target_id / 10) { 601 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0'; 602 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0'; 603 } 604 else 605 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0'; 606 607 memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4); 608 609 ccb->ccb_h.status = CAM_REQ_CMP; 610 } 611 break; 612 613 case READ_CAPACITY: 614 { 615 HPT_U8 *rbuf = ccb->csio.data_ptr; 616 HPT_U32 cap; 617 618 if (vd->capacity>0xfffffffful) 619 cap = 0xfffffffful; 620 else 621 cap = vd->capacity - 1; 622 623 rbuf[0] = (HPT_U8)(cap>>24); 624 rbuf[1] = (HPT_U8)(cap>>16); 625 rbuf[2] = (HPT_U8)(cap>>8); 626 rbuf[3] = (HPT_U8)cap; 627 rbuf[4] = 0; 628 rbuf[5] = 0; 629 rbuf[6] = 2; 630 rbuf[7] = 0; 631 632 ccb->ccb_h.status = CAM_REQ_CMP; 633 break; 634 } 635 636 case SERVICE_ACTION_IN: 637 { 638 HPT_U8 *rbuf = ccb->csio.data_ptr; 639 HPT_U64 cap = vd->capacity - 1; 640 641 rbuf[0] = (HPT_U8)(cap>>56); 642 rbuf[1] = (HPT_U8)(cap>>48); 643 rbuf[2] = (HPT_U8)(cap>>40); 644 rbuf[3] = (HPT_U8)(cap>>32); 645 rbuf[4] = (HPT_U8)(cap>>24); 646 rbuf[5] = (HPT_U8)(cap>>16); 647 rbuf[6] = (HPT_U8)(cap>>8); 648 rbuf[7] = (HPT_U8)cap; 649 rbuf[8] = 0; 650 rbuf[9] = 0; 651 rbuf[10] = 2; 652 rbuf[11] = 0; 653 654 ccb->ccb_h.status = CAM_REQ_CMP; 655 break; 656 } 657 658 case READ_6: 659 case READ_10: 660 case READ_16: 661 case WRITE_6: 662 case WRITE_10: 663 case WRITE_16: 664 case 0x13: 665 case 0x2f: 666 { 667 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request); 668 if(!pCmd){ 669 KdPrint(("Failed to allocate command!")); 670 ccb->ccb_h.status = CAM_BUSY; 671 break; 672 } 673 674 switch (cdb[0]) { 675 case READ_6: 676 case WRITE_6: 677 case 0x13: 678 pCmd->uCmd.Ide.Lba = ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3]; 679 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4]; 680 break; 681 case READ_16: 682 case WRITE_16: 683 { 684 HPT_U64 block = 685 ((HPT_U64)cdb[2]<<56) | 686 ((HPT_U64)cdb[3]<<48) | 687 ((HPT_U64)cdb[4]<<40) | 688 ((HPT_U64)cdb[5]<<32) | 689 ((HPT_U64)cdb[6]<<24) | 690 ((HPT_U64)cdb[7]<<16) | 691 ((HPT_U64)cdb[8]<<8) | 692 ((HPT_U64)cdb[9]); 693 pCmd->uCmd.Ide.Lba = block; 694 pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8); 695 break; 696 } 697 698 default: 699 pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24); 700 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8); 701 break; 702 } 703 704 switch (cdb[0]) { 705 case READ_6: 706 case READ_10: 707 case READ_16: 708 pCmd->flags.data_in = 1; 709 break; 710 case WRITE_6: 711 case WRITE_10: 712 case WRITE_16: 713 pCmd->flags.data_out = 1; 714 break; 715 } 716 pCmd->priv = ext = cmdext_get(vbus_ext); 717 HPT_ASSERT(ext); 718 ext->ccb = ccb; 719 pCmd->target = vd; 720 pCmd->done = os_cmddone; 721 pCmd->buildsgl = os_buildsgl; 722 723 pCmd->psg = ext->psg; 724 725 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) { 726 int idx; 727 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr; 728 729 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) 730 pCmd->flags.physical_sg = 1; 731 732 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) { 733 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr; 734 pCmd->psg[idx].size = sgList[idx].ds_len; 735 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0; 736 } 737 738 callout_reset(&ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd); 739 ldm_queue_cmd(pCmd); 740 } 741 else { 742 int error; 743 pCmd->flags.physical_sg = 1; 744 error = bus_dmamap_load(vbus_ext->io_dmat, 745 ext->dma_map, 746 ccb->csio.data_ptr, ccb->csio.dxfer_len, 747 hpt_io_dmamap_callback, pCmd, 748 BUS_DMA_WAITOK 749 ); 750 KdPrint(("bus_dmamap_load return %d", error)); 751 if (error && error!=EINPROGRESS) { 752 os_printk("bus_dmamap_load error %d", error); 753 cmdext_put(ext); 754 ldm_free_cmds(pCmd); 755 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 756 xpt_done(ccb); 757 } 758 } 759 return; 760 } 761 762 default: 763 ccb->ccb_h.status = CAM_REQ_INVALID; 764 break; 765 } 766 767 xpt_done(ccb); 768 return; 769 } 770 771 static void hpt_action(struct cam_sim *sim, union ccb *ccb) 772 { 773 PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim); 774 775 KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id)); 776 777 switch (ccb->ccb_h.func_code) { 778 779 case XPT_SCSI_IO: 780 hpt_lock_vbus(vbus_ext); 781 hpt_scsi_io(vbus_ext, ccb); 782 hpt_unlock_vbus(vbus_ext); 783 return; 784 785 case XPT_RESET_BUS: 786 hpt_lock_vbus(vbus_ext); 787 ldm_reset_vbus((PVBUS)vbus_ext->vbus); 788 hpt_unlock_vbus(vbus_ext); 789 break; 790 791 case XPT_GET_TRAN_SETTINGS: 792 case XPT_SET_TRAN_SETTINGS: 793 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 794 break; 795 796 case XPT_CALC_GEOMETRY: 797 cam_calc_geometry(&ccb->ccg, 1); 798 break; 799 800 case XPT_PATH_INQ: 801 { 802 struct ccb_pathinq *cpi = &ccb->cpi; 803 804 cpi->version_num = 1; 805 cpi->hba_inquiry = PI_SDTR_ABLE; 806 cpi->target_sprt = 0; 807 cpi->hba_misc = PIM_NOBUSRESET; 808 cpi->hba_eng_cnt = 0; 809 cpi->max_target = osm_max_targets; 810 cpi->max_lun = 0; 811 cpi->unit_number = cam_sim_unit(sim); 812 cpi->bus_id = cam_sim_bus(sim); 813 cpi->initiator_id = osm_max_targets; 814 cpi->base_transfer_speed = 3300; 815 816 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 817 strncpy(cpi->hba_vid, "HPT ", HBA_IDLEN); 818 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 819 cpi->transport = XPORT_SPI; 820 cpi->transport_version = 2; 821 cpi->protocol = PROTO_SCSI; 822 cpi->protocol_version = SCSI_REV_2; 823 cpi->maxio = HPTRR_DFLTPHYS; 824 cpi->ccb_h.status = CAM_REQ_CMP; 825 break; 826 } 827 828 default: 829 ccb->ccb_h.status = CAM_REQ_INVALID; 830 break; 831 } 832 833 xpt_done(ccb); 834 return; 835 } 836 837 static void hpt_pci_intr(void *arg) 838 { 839 PVBUS_EXT vbus_ext = (PVBUS_EXT)arg; 840 hpt_lock_vbus(vbus_ext); 841 ldm_intr((PVBUS)vbus_ext->vbus); 842 hpt_unlock_vbus(vbus_ext); 843 } 844 845 static void hpt_poll(struct cam_sim *sim) 846 { 847 hpt_pci_intr(cam_sim_softc(sim)); 848 } 849 850 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg) 851 { 852 KdPrint(("hpt_async")); 853 } 854 855 static int hpt_shutdown(device_t dev) 856 { 857 KdPrint(("hpt_shutdown(dev=%p)", dev)); 858 return 0; 859 } 860 861 static int hpt_detach(device_t dev) 862 { 863 /* we don't allow the driver to be unloaded. */ 864 return EBUSY; 865 } 866 867 static void hpt_ioctl_done(struct _IOCTL_ARG *arg) 868 { 869 arg->ioctl_cmnd = 0; 870 wakeup(arg); 871 } 872 873 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args) 874 { 875 ioctl_args->result = -1; 876 ioctl_args->done = hpt_ioctl_done; 877 ioctl_args->ioctl_cmnd = (void *)1; 878 879 hpt_lock_vbus(vbus_ext); 880 ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args); 881 882 while (ioctl_args->ioctl_cmnd) { 883 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0) 884 break; 885 ldm_reset_vbus((PVBUS)vbus_ext->vbus); 886 __hpt_do_tasks(vbus_ext); 887 } 888 889 /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */ 890 891 hpt_unlock_vbus(vbus_ext); 892 } 893 894 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args) 895 { 896 PVBUS vbus; 897 PVBUS_EXT vbus_ext; 898 899 ldm_for_each_vbus(vbus, vbus_ext) { 900 __hpt_do_ioctl(vbus_ext, ioctl_args); 901 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS) 902 return; 903 } 904 } 905 906 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\ 907 IOCTL_ARG arg;\ 908 arg.dwIoControlCode = code;\ 909 arg.lpInBuffer = inbuf;\ 910 arg.lpOutBuffer = outbuf;\ 911 arg.nInBufferSize = insize;\ 912 arg.nOutBufferSize = outsize;\ 913 arg.lpBytesReturned = 0;\ 914 hpt_do_ioctl(&arg);\ 915 arg.result;\ 916 }) 917 918 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff)) 919 920 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount) 921 { 922 int i; 923 HPT_U32 count = nMaxCount-1; 924 925 if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES, 926 &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount)) 927 return -1; 928 929 nMaxCount = (int)pIds[0]; 930 for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1]; 931 return nMaxCount; 932 } 933 934 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo) 935 { 936 return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3, 937 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3)); 938 } 939 940 /* not belong to this file logically, but we want to use ioctl interface */ 941 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id) 942 { 943 LOGICAL_DEVICE_INFO_V3 devinfo; 944 int i, result; 945 DEVICEID param[2] = { id, 0 }; 946 947 if (hpt_get_device_info_v3(id, &devinfo)) 948 return -1; 949 950 if (devinfo.Type!=LDT_ARRAY) 951 return -1; 952 953 if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING) 954 param[1] = AS_REBUILD_ABORT; 955 else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING) 956 param[1] = AS_VERIFY_ABORT; 957 else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING) 958 param[1] = AS_INITIALIZE_ABORT; 959 else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING) 960 param[1] = AS_TRANSFORM_ABORT; 961 else 962 return -1; 963 964 KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1])); 965 result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE, 966 param, sizeof(param), 0, 0); 967 968 for (i=0; i<devinfo.u.array.nDisk; i++) 969 if (DEVICEID_VALID(devinfo.u.array.Members[i])) 970 __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]); 971 972 return result; 973 } 974 975 static void hpt_stop_tasks(PVBUS_EXT vbus_ext) 976 { 977 DEVICEID ids[32]; 978 int i, count; 979 980 count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0])); 981 982 for (i=0; i<count; i++) 983 __hpt_stop_tasks(vbus_ext, ids[i]); 984 } 985 986 static d_open_t hpt_open; 987 static d_close_t hpt_close; 988 static d_ioctl_t hpt_ioctl; 989 static int hpt_rescan_bus(void); 990 static void hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb); 991 992 static struct dev_ops hpt_ops = { 993 { driver_name, 0, 0 }, 994 .d_open = hpt_open, 995 .d_close = hpt_close, 996 .d_ioctl = hpt_ioctl, 997 }; 998 999 static struct intr_config_hook hpt_ich; 1000 1001 /* 1002 * hpt_final_init will be called after all hpt_attach. 1003 */ 1004 static void hpt_final_init(void *dummy) 1005 { 1006 int i; 1007 PVBUS_EXT vbus_ext; 1008 PVBUS vbus; 1009 PHBA hba; 1010 1011 /* Clear the config hook */ 1012 config_intrhook_disestablish(&hpt_ich); 1013 1014 /* allocate memory */ 1015 i = 0; 1016 ldm_for_each_vbus(vbus, vbus_ext) { 1017 if (hpt_alloc_mem(vbus_ext)) { 1018 os_printk("out of memory"); 1019 return; 1020 } 1021 i++; 1022 } 1023 1024 if (!i) { 1025 if (bootverbose) 1026 os_printk("no controller detected."); 1027 return; 1028 } 1029 1030 /* initializing hardware */ 1031 ldm_for_each_vbus(vbus, vbus_ext) { 1032 /* make timer available here */ 1033 callout_init(&vbus_ext->timer); 1034 if (hpt_init_vbus(vbus_ext)) { 1035 os_printk("fail to initialize hardware"); 1036 break; /* FIXME */ 1037 } 1038 } 1039 1040 /* register CAM interface */ 1041 ldm_for_each_vbus(vbus, vbus_ext) { 1042 struct cam_devq *devq; 1043 struct ccb_setasync ccb; 1044 1045 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE); 1046 if (bus_dma_tag_create(NULL,/* parent */ 1047 4, /* alignment */ 1048 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */ 1049 BUS_SPACE_MAXADDR, /* lowaddr */ 1050 BUS_SPACE_MAXADDR, /* highaddr */ 1051 NULL, NULL, /* filter, filterarg */ 1052 PAGE_SIZE * (os_max_sg_descriptors-1), /* maxsize */ 1053 os_max_sg_descriptors, /* nsegments */ 1054 0x10000, /* maxsegsize */ 1055 BUS_DMA_WAITOK, /* flags */ 1056 &vbus_ext->io_dmat /* tag */)) 1057 { 1058 return ; 1059 } 1060 1061 for (i=0; i<os_max_queue_comm; i++) { 1062 POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK); 1063 if (!ext) { 1064 os_printk("Can't alloc cmdext(%d)", i); 1065 return ; 1066 } 1067 ext->vbus_ext = vbus_ext; 1068 ext->next = vbus_ext->cmdext_list; 1069 vbus_ext->cmdext_list = ext; 1070 1071 if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) { 1072 os_printk("Can't create dma map(%d)", i); 1073 return ; 1074 } 1075 } 1076 1077 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) { 1078 os_printk("cam_simq_alloc failed"); 1079 return ; 1080 } 1081 1082 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name, 1083 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8, devq); 1084 1085 if (!vbus_ext->sim) { 1086 os_printk("cam_sim_alloc failed"); 1087 cam_simq_release(devq); 1088 return ; 1089 } 1090 cam_simq_release(devq); 1091 1092 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) { 1093 os_printk("xpt_bus_register failed"); 1094 cam_sim_free(vbus_ext->sim); 1095 vbus_ext->sim = NULL; 1096 return ; 1097 } 1098 1099 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL, 1100 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD, 1101 CAM_LUN_WILDCARD) != CAM_REQ_CMP) 1102 { 1103 os_printk("xpt_create_path failed"); 1104 xpt_bus_deregister(cam_sim_path(vbus_ext->sim)); 1105 cam_sim_free(vbus_ext->sim); 1106 vbus_ext->sim = NULL; 1107 return ; 1108 } 1109 1110 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5); 1111 ccb.ccb_h.func_code = XPT_SASYNC_CB; 1112 ccb.event_enable = AC_LOST_DEVICE; 1113 ccb.callback = hpt_async; 1114 ccb.callback_arg = vbus_ext; 1115 xpt_action((union ccb *)&ccb); 1116 1117 for (hba = vbus_ext->hba_list; hba; hba = hba->next) { 1118 int rid = 0; 1119 if ((hba->irq_res = bus_alloc_resource(hba->pcidev, 1120 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) 1121 { 1122 os_printk("can't allocate interrupt"); 1123 return ; 1124 } 1125 1126 if (bus_setup_intr(hba->pcidev, hba->irq_res, 0, 1127 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL)) 1128 { 1129 os_printk("can't set up interrupt"); 1130 return ; 1131 } 1132 hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE); 1133 } 1134 1135 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final, 1136 hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT); 1137 if (!vbus_ext->shutdown_eh) 1138 os_printk("Shutdown event registration failed"); 1139 } 1140 1141 ldm_for_each_vbus(vbus, vbus_ext) { 1142 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext); 1143 if (vbus_ext->tasks) 1144 TASK_ENQUEUE(&vbus_ext->worker); 1145 } 1146 1147 make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR, 1148 S_IRUSR | S_IWUSR, "%s", driver_name); 1149 } 1150 1151 #if defined(KLD_MODULE) 1152 1153 typedef struct driverlink *driverlink_t; 1154 struct driverlink { 1155 kobj_class_t driver; 1156 TAILQ_ENTRY(driverlink) link; /* list of drivers in devclass */ 1157 }; 1158 1159 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t; 1160 1161 struct devclass { 1162 TAILQ_ENTRY(devclass) link; 1163 devclass_t parent; /* parent in devclass hierarchy */ 1164 driver_list_t drivers; /* bus devclasses store drivers for bus */ 1165 char *name; 1166 device_t *devices; /* array of devices indexed by unit */ 1167 int maxunit; /* size of devices array */ 1168 }; 1169 1170 static void override_kernel_driver(void) 1171 { 1172 driverlink_t dl, dlfirst; 1173 driver_t *tmpdriver; 1174 devclass_t dc = devclass_find("pci"); 1175 1176 if (dc){ 1177 dlfirst = TAILQ_FIRST(&dc->drivers); 1178 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) { 1179 if(strcmp(dl->driver->name, driver_name) == 0) { 1180 tmpdriver=dl->driver; 1181 dl->driver=dlfirst->driver; 1182 dlfirst->driver=tmpdriver; 1183 break; 1184 } 1185 } 1186 } 1187 } 1188 1189 #else 1190 #define override_kernel_driver() 1191 #endif 1192 1193 static void hpt_init(void *dummy) 1194 { 1195 if (bootverbose) 1196 os_printk("%s %s", driver_name_long, driver_ver); 1197 1198 override_kernel_driver(); 1199 init_config(); 1200 1201 hpt_ich.ich_func = hpt_final_init; 1202 hpt_ich.ich_arg = NULL; 1203 if (config_intrhook_establish(&hpt_ich) != 0) { 1204 kprintf("%s: cannot establish configuration hook\n", 1205 driver_name_long); 1206 } 1207 1208 } 1209 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL); 1210 1211 /* 1212 * CAM driver interface 1213 */ 1214 static device_method_t driver_methods[] = { 1215 /* Device interface */ 1216 DEVMETHOD(device_probe, hpt_probe), 1217 DEVMETHOD(device_attach, hpt_attach), 1218 DEVMETHOD(device_detach, hpt_detach), 1219 DEVMETHOD(device_shutdown, hpt_shutdown), 1220 { 0, 0 } 1221 }; 1222 1223 static driver_t hpt_pci_driver = { 1224 driver_name, 1225 driver_methods, 1226 sizeof(HBA) 1227 }; 1228 1229 static devclass_t hpt_devclass; 1230 1231 #ifndef TARGETNAME 1232 #error "no TARGETNAME found" 1233 #endif 1234 1235 /* use this to make TARGETNAME be expanded */ 1236 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6) 1237 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2) 1238 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5) 1239 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0); 1240 __MODULE_VERSION(TARGETNAME, 1); 1241 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1); 1242 1243 typedef struct cdev * ioctl_dev_t; 1244 1245 typedef struct thread * ioctl_thread_t; 1246 1247 static int hpt_open(struct dev_open_args *ap) 1248 { 1249 return 0; 1250 } 1251 1252 static int hpt_close(struct dev_close_args *ap) 1253 { 1254 return 0; 1255 } 1256 1257 static int hpt_ioctl(struct dev_ioctl_args *ap) 1258 { 1259 u_long cmd = ap->a_cmd; 1260 caddr_t data = ap->a_data; 1261 PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data; 1262 IOCTL_ARG ioctl_args; 1263 HPT_U32 bytesReturned; 1264 1265 switch (cmd){ 1266 case HPT_DO_IOCONTROL: 1267 { 1268 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) { 1269 KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n", 1270 piop->dwIoControlCode, 1271 piop->lpInBuffer, 1272 piop->nInBufferSize, 1273 piop->lpOutBuffer, 1274 piop->nOutBufferSize)); 1275 1276 memset(&ioctl_args, 0, sizeof(ioctl_args)); 1277 1278 ioctl_args.dwIoControlCode = piop->dwIoControlCode; 1279 ioctl_args.nInBufferSize = piop->nInBufferSize; 1280 ioctl_args.nOutBufferSize = piop->nOutBufferSize; 1281 ioctl_args.lpBytesReturned = &bytesReturned; 1282 1283 if (ioctl_args.nInBufferSize) { 1284 ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK); 1285 if (!ioctl_args.lpInBuffer) 1286 goto invalid; 1287 if (copyin((void*)piop->lpInBuffer, 1288 ioctl_args.lpInBuffer, piop->nInBufferSize)) 1289 goto invalid; 1290 } 1291 1292 if (ioctl_args.nOutBufferSize) { 1293 ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK); 1294 if (!ioctl_args.lpOutBuffer) 1295 goto invalid; 1296 } 1297 1298 get_mplock(); 1299 1300 hpt_do_ioctl(&ioctl_args); 1301 1302 rel_mplock(); 1303 1304 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) { 1305 if (piop->nOutBufferSize) { 1306 if (copyout(ioctl_args.lpOutBuffer, 1307 (void*)piop->lpOutBuffer, piop->nOutBufferSize)) 1308 goto invalid; 1309 } 1310 if (piop->lpBytesReturned) { 1311 if (copyout(&bytesReturned, 1312 (void*)piop->lpBytesReturned, sizeof(HPT_U32))) 1313 goto invalid; 1314 } 1315 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF); 1316 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF); 1317 return 0; 1318 } 1319 invalid: 1320 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF); 1321 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF); 1322 return EFAULT; 1323 } 1324 return EFAULT; 1325 } 1326 1327 case HPT_SCAN_BUS: 1328 { 1329 return hpt_rescan_bus(); 1330 } 1331 default: 1332 KdPrint(("invalid command!")); 1333 return EFAULT; 1334 } 1335 1336 } 1337 1338 static void hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb) 1339 { 1340 xpt_free_path(ccb->ccb_h.path); 1341 xpt_free_ccb(ccb); 1342 } 1343 1344 static int hpt_rescan_bus(void) 1345 { 1346 union ccb *ccb; 1347 PVBUS vbus; 1348 PVBUS_EXT vbus_ext; 1349 1350 get_mplock(); 1351 1352 ldm_for_each_vbus(vbus, vbus_ext) { 1353 if ((ccb = xpt_alloc_ccb()) == NULL) 1354 return(ENOMEM); 1355 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, 1356 cam_sim_path(vbus_ext->sim), 1357 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 1358 xpt_free_ccb(ccb); 1359 return(EIO); 1360 } 1361 1362 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/); 1363 ccb->ccb_h.func_code = XPT_SCAN_BUS; 1364 ccb->ccb_h.cbfcnp = hpt_rescan_callback; 1365 ccb->crcn.flags = CAM_FLAG_NONE; 1366 xpt_action(ccb); /* scan is now in progress */ 1367 } 1368 1369 return(0); 1370 } 1371