xref: /freebsd/sys/dev/hpt27xx/hpt27xx_osm_bsd.c (revision 19261079)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2011 HighPoint Technologies, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #include <dev/hpt27xx/hpt27xx_config.h>
32 
33 #include <dev/hpt27xx/os_bsd.h>
34 #include <dev/hpt27xx/hptintf.h>
35 
36 static HIM *hpt_match(device_t dev, int scan)
37 {
38 	PCI_ID pci_id;
39 	HIM *him;
40 	int i;
41 
42 	for (him = him_list; him; him = him->next) {
43 		for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
44 			if (scan && him->get_controller_count)
45 				him->get_controller_count(&pci_id,0,0);
46 			if ((pci_get_vendor(dev) == pci_id.vid) &&
47 				(pci_get_device(dev) == pci_id.did)){
48 				return (him);
49 			}
50 		}
51 	}
52 	return (NULL);
53 }
54 
55 static int hpt_probe(device_t dev)
56 {
57 	HIM *him;
58 
59 	him = hpt_match(dev, 0);
60 	if (him != NULL) {
61 		KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
62 			pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
63 			));
64 		device_set_desc(dev, him->name);
65 		return (BUS_PROBE_DEFAULT);
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;
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 	him = hpt_match(dev, 1);
83 	hba->ext_type = EXT_TYPE_HBA;
84 	hba->ldm_adapter.him = him;
85 	pci_enable_busmaster(dev);
86 
87 	pci_id.vid = pci_get_vendor(dev);
88 	pci_id.did = pci_get_device(dev);
89 	pci_id.rev = pci_get_revid(dev);
90 	pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
91 
92 	size = him->get_adapter_size(&pci_id);
93 	hba->ldm_adapter.him_handle = malloc(size, M_DEVBUF, M_WAITOK);
94 	if (!hba->ldm_adapter.him_handle)
95 		return ENXIO;
96 
97 	hba->pcidev = dev;
98 	hba->pciaddr.tree = 0;
99 	hba->pciaddr.bus = pci_get_bus(dev);
100 	hba->pciaddr.device = pci_get_slot(dev);
101 	hba->pciaddr.function = pci_get_function(dev);
102 
103 	if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
104 		free(hba->ldm_adapter.him_handle, M_DEVBUF);
105 		return ENXIO;
106 	}
107 
108 	os_printk("adapter at PCI %d:%d:%d, IRQ %d",
109 		hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
110 
111 	if (!ldm_register_adapter(&hba->ldm_adapter)) {
112 		size = ldm_get_vbus_size();
113 		vbus_ext = malloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
114 		if (!vbus_ext) {
115 			free(hba->ldm_adapter.him_handle, M_DEVBUF);
116 			return ENXIO;
117 		}
118 		memset(vbus_ext, 0, sizeof(VBUS_EXT));
119 		vbus_ext->ext_type = EXT_TYPE_VBUS;
120 		ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
121 		ldm_register_adapter(&hba->ldm_adapter);
122 	}
123 
124 	ldm_for_each_vbus(vbus, vbus_ext) {
125 		if (hba->ldm_adapter.vbus==vbus) {
126 			hba->vbus_ext = vbus_ext;
127 			hba->next = vbus_ext->hba_list;
128 			vbus_ext->hba_list = hba;
129 			break;
130 		}
131 	}
132 	return 0;
133 }
134 
135 /*
136  * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
137  * but there are some problems currently (alignment, etc).
138  */
139 static __inline void *__get_free_pages(int order)
140 {
141 	/* don't use low memory - other devices may get starved */
142 	return contigmalloc(PAGE_SIZE<<order,
143 			M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
144 }
145 
146 static __inline void free_pages(void *p, int order)
147 {
148 	contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
149 }
150 
151 static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
152 {
153 	PHBA hba;
154 	struct freelist *f;
155 	HPT_UINT i;
156 	void **p;
157 
158 	for (hba = vbus_ext->hba_list; hba; hba = hba->next)
159 		hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
160 
161 	ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
162 
163 	for (f=vbus_ext->freelist_head; f; f=f->next) {
164 		KdPrint(("%s: %d*%d=%d bytes",
165 			f->tag, f->count, f->size, f->count*f->size));
166 		for (i=0; i<f->count; i++) {
167 			p = (void **)malloc(f->size, M_DEVBUF, M_WAITOK);
168 			if (!p)	return (ENXIO);
169 			*p = f->head;
170 			f->head = p;
171 		}
172 	}
173 
174 	for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
175 		int order, size, j;
176 
177 		HPT_ASSERT((f->size & (f->alignment-1))==0);
178 
179 		for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1)
180 			;
181 
182 		KdPrint(("%s: %d*%d=%d bytes, order %d",
183 			f->tag, f->count, f->size, f->count*f->size, order));
184 		HPT_ASSERT(f->alignment<=PAGE_SIZE);
185 
186 		for (i=0; i<f->count;) {
187 			p = (void **)__get_free_pages(order);
188 			if (!p) return -1;
189 			for (j = size/f->size; j && i<f->count; i++,j--) {
190 				*p = f->head;
191 				*(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
192 				f->head = p;
193 				p = (void **)((unsigned long)p + f->size);
194 			}
195 		}
196 	}
197 
198 	HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
199 
200 	for (i=0; i<os_max_cache_pages; i++) {
201 		p = (void **)__get_free_pages(0);
202 		if (!p) return -1;
203 		HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
204 		dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
205 	}
206 
207 	return 0;
208 }
209 
210 static void hpt_free_mem(PVBUS_EXT vbus_ext)
211 {
212 	struct freelist *f;
213 	void *p;
214 	int i;
215 	BUS_ADDRESS bus;
216 
217 	for (f=vbus_ext->freelist_head; f; f=f->next) {
218 #if DBG
219 		if (f->count!=f->reserved_count) {
220 			KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
221 		}
222 #endif
223 		while ((p=freelist_get(f)))
224 			free(p, M_DEVBUF);
225 	}
226 
227 	for (i=0; i<os_max_cache_pages; i++) {
228 		p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
229 		HPT_ASSERT(p);
230 		free_pages(p, 0);
231 	}
232 
233 	for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
234 		int order, size;
235 #if DBG
236 		if (f->count!=f->reserved_count) {
237 			KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
238 		}
239 #endif
240 		for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
241 
242 		while ((p=freelist_get_dma(f, &bus))) {
243 			if (order)
244 				free_pages(p, order);
245 			else {
246 			/* can't free immediately since other blocks in this page may still be in the list */
247 				if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
248 					dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
249 			}
250 		}
251 	}
252 
253 	while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
254 		free_pages(p, 0);
255 }
256 
257 static int hpt_init_vbus(PVBUS_EXT vbus_ext)
258 {
259 	PHBA hba;
260 
261 	for (hba = vbus_ext->hba_list; hba; hba = hba->next)
262 		if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
263 			KdPrint(("fail to initialize %p", hba));
264 			return -1;
265 		}
266 
267 	ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
268 	return 0;
269 }
270 
271 static void hpt_flush_done(PCOMMAND pCmd)
272 {
273 	PVDEV vd = pCmd->target;
274 
275 	if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
276 		vd = vd->u.array.transform->target;
277 		HPT_ASSERT(vd);
278 		pCmd->target = vd;
279 		pCmd->Result = RETURN_PENDING;
280 		vdev_queue_cmd(pCmd);
281 		return;
282 	}
283 
284 	*(int *)pCmd->priv = 1;
285 	wakeup(pCmd);
286 }
287 
288 /*
289  * flush a vdev (without retry).
290  */
291 static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
292 {
293 	PCOMMAND pCmd;
294 	int result = 0, done;
295 	HPT_UINT count;
296 
297 	KdPrint(("flusing dev %p", vd));
298 
299 	hpt_lock_vbus(vbus_ext);
300 
301 	if (mIsArray(vd->type) && vd->u.array.transform)
302 		count = max(vd->u.array.transform->source->cmds_per_request,
303 					vd->u.array.transform->target->cmds_per_request);
304 	else
305 		count = vd->cmds_per_request;
306 
307 	pCmd = ldm_alloc_cmds(vd->vbus, count);
308 
309 	if (!pCmd) {
310 		hpt_unlock_vbus(vbus_ext);
311 		return -1;
312 	}
313 
314 	pCmd->type = CMD_TYPE_FLUSH;
315 	pCmd->flags.hard_flush = 1;
316 	pCmd->target = vd;
317 	pCmd->done = hpt_flush_done;
318 	done = 0;
319 	pCmd->priv = &done;
320 
321 	ldm_queue_cmd(pCmd);
322 
323 	if (!done) {
324 		while (hpt_sleep(vbus_ext, pCmd, PPAUSE, "hptfls", HPT_OSM_TIMEOUT)) {
325 			ldm_reset_vbus(vd->vbus);
326 		}
327 	}
328 
329 	KdPrint(("flush result %d", pCmd->Result));
330 
331 	if (pCmd->Result!=RETURN_SUCCESS)
332 		result = -1;
333 
334 	ldm_free_cmds(pCmd);
335 
336 	hpt_unlock_vbus(vbus_ext);
337 
338 	return result;
339 }
340 
341 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
342 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
343 {
344 	PVBUS     vbus = (PVBUS)vbus_ext->vbus;
345 	PHBA hba;
346 	int i;
347 
348 	KdPrint(("hpt_shutdown_vbus"));
349 
350 	/* stop all ctl tasks and disable the worker taskqueue */
351 	hpt_stop_tasks(vbus_ext);
352 	vbus_ext->worker.ta_context = 0;
353 
354 	/* flush devices */
355 	for (i=0; i<osm_max_targets; i++) {
356 		PVDEV vd = ldm_find_target(vbus, i);
357 		if (vd) {
358 			/* retry once */
359 			if (hpt_flush_vdev(vbus_ext, vd))
360 				hpt_flush_vdev(vbus_ext, vd);
361 		}
362 	}
363 
364 	hpt_lock_vbus(vbus_ext);
365 	ldm_shutdown(vbus);
366 	hpt_unlock_vbus(vbus_ext);
367 
368 	ldm_release_vbus(vbus);
369 
370 	for (hba=vbus_ext->hba_list; hba; hba=hba->next)
371 		bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
372 
373 	hpt_free_mem(vbus_ext);
374 
375 	while ((hba=vbus_ext->hba_list)) {
376 		vbus_ext->hba_list = hba->next;
377 		free(hba->ldm_adapter.him_handle, M_DEVBUF);
378 	}
379 #if (__FreeBSD_version >= 1000510)
380 	callout_drain(&vbus_ext->timer);
381 	mtx_destroy(&vbus_ext->lock);
382 #endif
383 	free(vbus_ext, M_DEVBUF);
384 	KdPrint(("hpt_shutdown_vbus done"));
385 }
386 
387 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
388 {
389 	OSM_TASK *tasks;
390 
391 	tasks = vbus_ext->tasks;
392 	vbus_ext->tasks = 0;
393 
394 	while (tasks) {
395 		OSM_TASK *t = tasks;
396 		tasks = t->next;
397 		t->next = 0;
398 		t->func(vbus_ext->vbus, t->data);
399 	}
400 }
401 
402 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
403 {
404 	if(vbus_ext){
405 		hpt_lock_vbus(vbus_ext);
406 		__hpt_do_tasks(vbus_ext);
407 		hpt_unlock_vbus(vbus_ext);
408 	}
409 }
410 
411 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
412 static void hpt_poll(struct cam_sim *sim);
413 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
414 static void hpt_pci_intr(void *arg);
415 
416 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
417 {
418 	POS_CMDEXT p = vbus_ext->cmdext_list;
419 	if (p)
420 		vbus_ext->cmdext_list = p->next;
421 	return p;
422 }
423 
424 static __inline void cmdext_put(POS_CMDEXT p)
425 {
426 	p->next = p->vbus_ext->cmdext_list;
427 	p->vbus_ext->cmdext_list = p;
428 }
429 
430 static void hpt_timeout(void *arg)
431 {
432 	PCOMMAND pCmd = (PCOMMAND)arg;
433 	POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
434 
435 	KdPrint(("pCmd %p timeout", pCmd));
436 
437 	ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
438 }
439 
440 static void os_cmddone(PCOMMAND pCmd)
441 {
442 	POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
443 	union ccb *ccb = ext->ccb;
444 
445 	KdPrint(("<8>os_cmddone(%p, %d)", pCmd, pCmd->Result));
446 #if (__FreeBSD_version >= 1000510)
447 	callout_stop(&ext->timeout);
448 #else
449 	untimeout(hpt_timeout, pCmd, ccb->ccb_h.timeout_ch);
450 #endif
451 	switch(pCmd->Result) {
452 	case RETURN_SUCCESS:
453 		ccb->ccb_h.status = CAM_REQ_CMP;
454 		break;
455 	case RETURN_BAD_DEVICE:
456 		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
457 		break;
458 	case RETURN_DEVICE_BUSY:
459 		ccb->ccb_h.status = CAM_BUSY;
460 		break;
461 	case RETURN_INVALID_REQUEST:
462 		ccb->ccb_h.status = CAM_REQ_INVALID;
463 		break;
464 	case RETURN_SELECTION_TIMEOUT:
465 		ccb->ccb_h.status = CAM_SEL_TIMEOUT;
466 		break;
467 	case RETURN_RETRY:
468 		ccb->ccb_h.status = CAM_BUSY;
469 		break;
470 	default:
471 		ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
472 		break;
473 	}
474 
475 	if (pCmd->flags.data_in) {
476 		bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
477 	}
478 	else if (pCmd->flags.data_out) {
479 		bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
480 	}
481 
482 	bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
483 
484 	cmdext_put(ext);
485 	ldm_free_cmds(pCmd);
486 	xpt_done(ccb);
487 }
488 
489 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
490 {
491 	POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
492 	union ccb *ccb = ext->ccb;
493 #if (__FreeBSD_version >= 1000510)
494 	if(logical)	{
495 		os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
496 		pSg->size = ccb->csio.dxfer_len;
497 		pSg->eot = 1;
498 		return TRUE;
499 	}
500 #else
501 	bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
502 	int idx;
503 
504 	if(logical)	{
505 		if (ccb->ccb_h.flags & CAM_DATA_PHYS)
506 			panic("physical address unsupported");
507 
508 		if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
509 			if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
510 				panic("physical address unsupported");
511 
512 			for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
513 				os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
514 				pSg[idx].size = sgList[idx].ds_len;
515 				pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
516 			}
517 		}
518 		else {
519 			os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
520 			pSg->size = ccb->csio.dxfer_len;
521 			pSg->eot = 1;
522 		}
523 		return TRUE;
524 	}
525 #endif
526 	/* since we have provided physical sg, nobody will ask us to build physical sg */
527 	HPT_ASSERT(0);
528 	return FALSE;
529 }
530 
531 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
532 {
533 	PCOMMAND pCmd = (PCOMMAND)arg;
534 	POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
535 	PSG psg = pCmd->psg;
536 	int idx;
537 
538 	HPT_ASSERT(pCmd->flags.physical_sg);
539 
540 	if (error)
541 		panic("busdma error");
542 
543 	HPT_ASSERT(nsegs<=os_max_sg_descriptors);
544 
545 	if (nsegs != 0) {
546 		for (idx = 0; idx < nsegs; idx++, psg++) {
547 			psg->addr.bus = segs[idx].ds_addr;
548 			psg->size = segs[idx].ds_len;
549 			psg->eot = 0;
550 		}
551 		psg[-1].eot = 1;
552 
553 		if (pCmd->flags.data_in) {
554 			bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
555 			    BUS_DMASYNC_PREREAD);
556 		}
557 		else if (pCmd->flags.data_out) {
558 			bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
559 			    BUS_DMASYNC_PREWRITE);
560 		}
561 	}
562 #if (__FreeBSD_version >= 1000510)
563 	callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
564 #else
565 	ext->ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
566 #endif
567 	ldm_queue_cmd(pCmd);
568 }
569 
570 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
571 {
572 	PVBUS vbus = (PVBUS)vbus_ext->vbus;
573 	PVDEV vd;
574 	PCOMMAND pCmd;
575 	POS_CMDEXT ext;
576 	HPT_U8 *cdb;
577 
578 	if (ccb->ccb_h.flags & CAM_CDB_POINTER)
579 		cdb = ccb->csio.cdb_io.cdb_ptr;
580 	else
581 		cdb = ccb->csio.cdb_io.cdb_bytes;
582 
583 	KdPrint(("<8>hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
584 		ccb,
585 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
586 		*(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
587 	));
588 
589 	/* ccb->ccb_h.path_id is not our bus id - don't check it */
590 	if (ccb->ccb_h.target_lun != 0 ||
591 		ccb->ccb_h.target_id >= osm_max_targets ||
592 		(ccb->ccb_h.flags & CAM_CDB_PHYS))
593 	{
594 		ccb->ccb_h.status = CAM_TID_INVALID;
595 		xpt_done(ccb);
596 		return;
597 	}
598 
599 	vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
600 
601 	if (!vd) {
602 		ccb->ccb_h.status = CAM_SEL_TIMEOUT;
603 		xpt_done(ccb);
604 		return;
605 	}
606 
607 	switch (cdb[0]) {
608 	case TEST_UNIT_READY:
609 	case START_STOP_UNIT:
610 	case SYNCHRONIZE_CACHE:
611 		ccb->ccb_h.status = CAM_REQ_CMP;
612 		break;
613 
614 	case INQUIRY:
615 		{
616 			PINQUIRYDATA inquiryData;
617 			memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
618 			inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
619 
620 			inquiryData->AdditionalLength = 31;
621 			inquiryData->CommandQueue = 1;
622 			memcpy(&inquiryData->VendorId, "HPT     ", 8);
623 			memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
624 
625 			if (vd->target_id / 10) {
626 				inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
627 				inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
628 			}
629 			else
630 				inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
631 
632 			memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
633 
634 			ccb->ccb_h.status = CAM_REQ_CMP;
635 		}
636 		break;
637 
638 	case READ_CAPACITY:
639 	{
640 		HPT_U8 *rbuf = ccb->csio.data_ptr;
641 		HPT_U32 cap;
642 		HPT_U8 sector_size_shift = 0;
643 		HPT_U64 new_cap;
644 		HPT_U32 sector_size = 0;
645 
646 		if (mIsArray(vd->type))
647 			sector_size_shift = vd->u.array.sector_size_shift;
648 		else{
649 			if(vd->type == VD_RAW){
650 				sector_size = vd->u.raw.logical_sector_size;
651 			}
652 
653 			switch (sector_size) {
654 				case 0x1000:
655 					KdPrint(("set 4k setctor size in READ_CAPACITY"));
656 					sector_size_shift = 3;
657 					break;
658 				default:
659 					break;
660 			}
661 		}
662 		new_cap = vd->capacity >> sector_size_shift;
663 
664 		if (new_cap > 0xfffffffful)
665 			cap = 0xffffffff;
666 		else
667 			cap = new_cap - 1;
668 
669 		rbuf[0] = (HPT_U8)(cap>>24);
670 		rbuf[1] = (HPT_U8)(cap>>16);
671 		rbuf[2] = (HPT_U8)(cap>>8);
672 		rbuf[3] = (HPT_U8)cap;
673 		rbuf[4] = 0;
674 		rbuf[5] = 0;
675 		rbuf[6] = 2 << sector_size_shift;
676 		rbuf[7] = 0;
677 
678 		ccb->ccb_h.status = CAM_REQ_CMP;
679 		break;
680 	}
681 	case REPORT_LUNS:
682 	{
683 		HPT_U8 *rbuf = ccb->csio.data_ptr;
684 		memset(rbuf, 0, 16);
685 		rbuf[3] = 8;
686 		ccb->ccb_h.status = CAM_REQ_CMP;
687 		break;
688 	}
689 	case SERVICE_ACTION_IN:
690 	{
691 		HPT_U8 *rbuf = ccb->csio.data_ptr;
692 		HPT_U64	cap = 0;
693 		HPT_U8 sector_size_shift = 0;
694 		HPT_U32 sector_size = 0;
695 
696 		if(mIsArray(vd->type))
697 			sector_size_shift = vd->u.array.sector_size_shift;
698 		else{
699 			if(vd->type == VD_RAW){
700 				sector_size = vd->u.raw.logical_sector_size;
701 			}
702 
703 			switch (sector_size) {
704 				case 0x1000:
705 					KdPrint(("set 4k setctor size in SERVICE_ACTION_IN"));
706 					sector_size_shift = 3;
707 					break;
708 				default:
709 					break;
710 			}
711 		}
712 		cap = (vd->capacity >> sector_size_shift) - 1;
713 
714 		rbuf[0] = (HPT_U8)(cap>>56);
715 		rbuf[1] = (HPT_U8)(cap>>48);
716 		rbuf[2] = (HPT_U8)(cap>>40);
717 		rbuf[3] = (HPT_U8)(cap>>32);
718 		rbuf[4] = (HPT_U8)(cap>>24);
719 		rbuf[5] = (HPT_U8)(cap>>16);
720 		rbuf[6] = (HPT_U8)(cap>>8);
721 		rbuf[7] = (HPT_U8)cap;
722 		rbuf[8] = 0;
723 		rbuf[9] = 0;
724 		rbuf[10] = 2 << sector_size_shift;
725 		rbuf[11] = 0;
726 
727 		ccb->ccb_h.status = CAM_REQ_CMP;
728 		break;
729 	}
730 
731 	case READ_6:
732 	case READ_10:
733 	case READ_16:
734 	case WRITE_6:
735 	case WRITE_10:
736 	case WRITE_16:
737 	case 0x13:
738 	case 0x2f:
739 	case 0x8f: /* VERIFY_16 */
740 	{
741 		HPT_U8 sector_size_shift = 0;
742 		HPT_U32 sector_size = 0;
743 		pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
744 		if(!pCmd){
745 			KdPrint(("Failed to allocate command!"));
746 			ccb->ccb_h.status = CAM_BUSY;
747 			break;
748 		}
749 
750 		switch (cdb[0])	{
751 		case READ_6:
752 		case WRITE_6:
753 		case 0x13:
754 			pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
755 			pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
756 			break;
757 		case READ_16:
758 		case WRITE_16:
759 		case 0x8f: /* VERIFY_16 */
760 		{
761 			HPT_U64 block =
762 				((HPT_U64)cdb[2]<<56) |
763 				((HPT_U64)cdb[3]<<48) |
764 				((HPT_U64)cdb[4]<<40) |
765 				((HPT_U64)cdb[5]<<32) |
766 				((HPT_U64)cdb[6]<<24) |
767 				((HPT_U64)cdb[7]<<16) |
768 				((HPT_U64)cdb[8]<<8) |
769 				((HPT_U64)cdb[9]);
770 			pCmd->uCmd.Ide.Lba = block;
771 			pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
772 			break;
773 		}
774 
775 		default:
776 			pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
777 			pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
778 			break;
779 		}
780 
781 		if(mIsArray(vd->type)) {
782 			sector_size_shift = vd->u.array.sector_size_shift;
783 		}
784 		else{
785 			if(vd->type == VD_RAW){
786 				sector_size = vd->u.raw.logical_sector_size;
787 			}
788 
789 			switch (sector_size) {
790 				case 0x1000:
791 					KdPrint(("<8>resize sector size from 4k to 512"));
792 					sector_size_shift = 3;
793 					break;
794 				default:
795 					break;
796 	 		}
797 		}
798 		pCmd->uCmd.Ide.Lba <<= sector_size_shift;
799 		pCmd->uCmd.Ide.nSectors <<= sector_size_shift;
800 
801 
802 		switch (cdb[0]) {
803 		case READ_6:
804 		case READ_10:
805 		case READ_16:
806 			pCmd->flags.data_in = 1;
807 			break;
808 		case WRITE_6:
809 		case WRITE_10:
810 		case WRITE_16:
811 			pCmd->flags.data_out = 1;
812 			break;
813 		}
814 		pCmd->priv = ext = cmdext_get(vbus_ext);
815 		HPT_ASSERT(ext);
816 		ext->ccb = ccb;
817 		pCmd->target = vd;
818 		pCmd->done = os_cmddone;
819 		pCmd->buildsgl = os_buildsgl;
820 
821 		pCmd->psg = ext->psg;
822 #if (__FreeBSD_version < 1000510)
823 		if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
824 			int idx;
825 			bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
826 
827 			if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
828 				pCmd->flags.physical_sg = 1;
829 
830 			for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
831 				pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
832 				pCmd->psg[idx].size = sgList[idx].ds_len;
833 				pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
834 			}
835 
836 			ccb->ccb_h.timeout_ch = timeout(hpt_timeout, pCmd, HPT_OSM_TIMEOUT);
837 			ldm_queue_cmd(pCmd);
838 		}
839 		else
840 #endif
841 		{
842 			int error;
843 			pCmd->flags.physical_sg = 1;
844 #if (__FreeBSD_version >= 1000510)
845 			error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
846 						ext->dma_map, ccb,
847 						hpt_io_dmamap_callback, pCmd,
848 						BUS_DMA_WAITOK
849 					);
850 #else
851 			error = bus_dmamap_load(vbus_ext->io_dmat,
852 						ext->dma_map,
853 						ccb->csio.data_ptr, ccb->csio.dxfer_len,
854 						hpt_io_dmamap_callback, pCmd,
855 				    	BUS_DMA_WAITOK
856 					);
857 #endif
858 			KdPrint(("<8>bus_dmamap_load return %d", error));
859 			if (error && error!=EINPROGRESS) {
860 				os_printk("bus_dmamap_load error %d", error);
861 				cmdext_put(ext);
862 				ldm_free_cmds(pCmd);
863 				ccb->ccb_h.status = CAM_REQ_CMP_ERR;
864 				xpt_done(ccb);
865 			}
866 		}
867 		return;
868 	}
869 
870 	default:
871 		ccb->ccb_h.status = CAM_REQ_INVALID;
872 		break;
873 	}
874 
875 	xpt_done(ccb);
876 	return;
877 }
878 
879 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
880 {
881 	PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
882 
883 	KdPrint(("<8>hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
884 
885 #if (__FreeBSD_version >= 1000510)
886 	hpt_assert_vbus_locked(vbus_ext);
887 #endif
888 	switch (ccb->ccb_h.func_code) {
889 
890 #if (__FreeBSD_version < 1000510)
891 	case XPT_SCSI_IO:
892 		hpt_lock_vbus(vbus_ext);
893 		hpt_scsi_io(vbus_ext, ccb);
894 		hpt_unlock_vbus(vbus_ext);
895 		return;
896 
897 	case XPT_RESET_BUS:
898 		hpt_lock_vbus(vbus_ext);
899 		ldm_reset_vbus((PVBUS)vbus_ext->vbus);
900 		hpt_unlock_vbus(vbus_ext);
901 		break;
902 #else
903 	case XPT_SCSI_IO:
904 		hpt_scsi_io(vbus_ext, ccb);
905 		return;
906 
907 	case XPT_RESET_BUS:
908 		ldm_reset_vbus((PVBUS)vbus_ext->vbus);
909 		break;
910 #endif
911 	case XPT_GET_TRAN_SETTINGS:
912 	case XPT_SET_TRAN_SETTINGS:
913 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
914 		break;
915 
916 	case XPT_CALC_GEOMETRY:
917 		ccb->ccg.heads = 255;
918 		ccb->ccg.secs_per_track = 63;
919 		ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
920 		ccb->ccb_h.status = CAM_REQ_CMP;
921 		break;
922 
923 	case XPT_PATH_INQ:
924 	{
925 		struct ccb_pathinq *cpi = &ccb->cpi;
926 
927 		cpi->version_num = 1;
928 		cpi->hba_inquiry = PI_SDTR_ABLE;
929 		cpi->target_sprt = 0;
930 		cpi->hba_misc = PIM_NOBUSRESET;
931 		cpi->hba_eng_cnt = 0;
932 		cpi->max_target = osm_max_targets;
933 		cpi->max_lun = 0;
934 		cpi->unit_number = cam_sim_unit(sim);
935 		cpi->bus_id = cam_sim_bus(sim);
936 		cpi->initiator_id = osm_max_targets;
937 		cpi->base_transfer_speed = 3300;
938 
939 		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
940 		strlcpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
941 		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
942 		cpi->transport = XPORT_SPI;
943 		cpi->transport_version = 2;
944 		cpi->protocol = PROTO_SCSI;
945 		cpi->protocol_version = SCSI_REV_2;
946 		cpi->ccb_h.status = CAM_REQ_CMP;
947 		break;
948 	}
949 
950 	default:
951 		ccb->ccb_h.status = CAM_REQ_INVALID;
952 		break;
953 	}
954 
955 	xpt_done(ccb);
956 	return;
957 }
958 
959 static void hpt_pci_intr(void *arg)
960 {
961 	PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
962 	hpt_lock_vbus(vbus_ext);
963 	ldm_intr((PVBUS)vbus_ext->vbus);
964 	hpt_unlock_vbus(vbus_ext);
965 }
966 
967 static void hpt_poll(struct cam_sim *sim)
968 {
969 #if (__FreeBSD_version < 1000510)
970 	hpt_pci_intr(cam_sim_softc(sim));
971 #else
972 	PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
973 
974 	hpt_assert_vbus_locked(vbus_ext);
975 	ldm_intr((PVBUS)vbus_ext->vbus);
976 #endif
977 }
978 
979 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
980 {
981 	KdPrint(("<8>hpt_async"));
982 }
983 
984 static int hpt_shutdown(device_t dev)
985 {
986 	KdPrint(("hpt_shutdown(dev=%p)", dev));
987 	return 0;
988 }
989 
990 static int hpt_detach(device_t dev)
991 {
992 	/* we don't allow the driver to be unloaded. */
993 	return EBUSY;
994 }
995 
996 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
997 {
998 	arg->ioctl_cmnd = 0;
999 	wakeup(arg);
1000 }
1001 
1002 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
1003 {
1004 	ioctl_args->result = -1;
1005 	ioctl_args->done = hpt_ioctl_done;
1006 	ioctl_args->ioctl_cmnd = (void *)1;
1007 
1008 	hpt_lock_vbus(vbus_ext);
1009 	ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
1010 
1011 	while (ioctl_args->ioctl_cmnd) {
1012 		if (hpt_sleep(vbus_ext, ioctl_args, PPAUSE, "hptctl", HPT_OSM_TIMEOUT)==0)
1013 			break;
1014 		ldm_reset_vbus((PVBUS)vbus_ext->vbus);
1015 		__hpt_do_tasks(vbus_ext);
1016 	}
1017 
1018 	/* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
1019 
1020 	hpt_unlock_vbus(vbus_ext);
1021 }
1022 
1023 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
1024 {
1025 	PVBUS vbus;
1026 	PVBUS_EXT vbus_ext;
1027 
1028 	ldm_for_each_vbus(vbus, vbus_ext) {
1029 		__hpt_do_ioctl(vbus_ext, ioctl_args);
1030 		if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
1031 			return;
1032 	}
1033 }
1034 
1035 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
1036 	IOCTL_ARG arg;\
1037 	arg.dwIoControlCode = code;\
1038 	arg.lpInBuffer = inbuf;\
1039 	arg.lpOutBuffer = outbuf;\
1040 	arg.nInBufferSize = insize;\
1041 	arg.nOutBufferSize = outsize;\
1042 	arg.lpBytesReturned = 0;\
1043 	hpt_do_ioctl(&arg);\
1044 	arg.result;\
1045 })
1046 
1047 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
1048 
1049 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
1050 {
1051 	int i;
1052 	HPT_U32 count = nMaxCount-1;
1053 
1054 	if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
1055 			&count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
1056 		return -1;
1057 
1058 	nMaxCount = (int)pIds[0];
1059 	for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
1060 	return nMaxCount;
1061 }
1062 
1063 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
1064 {
1065 	return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
1066 				&id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
1067 }
1068 
1069 /* not belong to this file logically, but we want to use ioctl interface */
1070 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
1071 {
1072 	LOGICAL_DEVICE_INFO_V3 devinfo;
1073 	int i, result;
1074 	DEVICEID param[2] = { id, 0 };
1075 
1076 	if (hpt_get_device_info_v3(id, &devinfo))
1077 		return -1;
1078 
1079 	if (devinfo.Type!=LDT_ARRAY)
1080 		return -1;
1081 
1082 	if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
1083 		param[1] = AS_REBUILD_ABORT;
1084 	else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
1085 		param[1] = AS_VERIFY_ABORT;
1086 	else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
1087 		param[1] = AS_INITIALIZE_ABORT;
1088 	else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
1089 		param[1] = AS_TRANSFORM_ABORT;
1090 	else
1091 		return -1;
1092 
1093 	KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
1094 	result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
1095 				param, sizeof(param), 0, 0);
1096 
1097 	for (i=0; i<devinfo.u.array.nDisk; i++)
1098 		if (DEVICEID_VALID(devinfo.u.array.Members[i]))
1099 			__hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
1100 
1101 	return result;
1102 }
1103 
1104 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
1105 {
1106 	DEVICEID ids[32];
1107 	int i, count;
1108 
1109 	count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
1110 
1111 	for (i=0; i<count; i++)
1112 		__hpt_stop_tasks(vbus_ext, ids[i]);
1113 }
1114 
1115 static	d_open_t	hpt_open;
1116 static	d_close_t	hpt_close;
1117 static	d_ioctl_t	hpt_ioctl;
1118 static  int 		hpt_rescan_bus(void);
1119 
1120 static struct cdevsw hpt_cdevsw = {
1121 	.d_open =	hpt_open,
1122 	.d_close =	hpt_close,
1123 	.d_ioctl =	hpt_ioctl,
1124 	.d_name =	driver_name,
1125 	.d_version =	D_VERSION,
1126 };
1127 
1128 static struct intr_config_hook hpt_ich;
1129 
1130 /*
1131  * hpt_final_init will be called after all hpt_attach.
1132  */
1133 static void hpt_final_init(void *dummy)
1134 {
1135 	int       i,unit_number=0;
1136 	PVBUS_EXT vbus_ext;
1137 	PVBUS vbus;
1138 	PHBA hba;
1139 
1140 	/* Clear the config hook */
1141 	config_intrhook_disestablish(&hpt_ich);
1142 
1143 	/* allocate memory */
1144 	i = 0;
1145 	ldm_for_each_vbus(vbus, vbus_ext) {
1146 		if (hpt_alloc_mem(vbus_ext)) {
1147 			os_printk("out of memory");
1148 			return;
1149 		}
1150 		i++;
1151 	}
1152 
1153 	if (!i) {
1154 		if (bootverbose)
1155 			os_printk("no controller detected.");
1156 		return;
1157 	}
1158 
1159 	/* initializing hardware */
1160 	ldm_for_each_vbus(vbus, vbus_ext) {
1161 		/* make timer available here */
1162 		mtx_init(&vbus_ext->lock, "hptsleeplock", NULL, MTX_DEF);
1163 #if (__FreeBSD_version < 1000510)
1164 		callout_handle_init(&vbus_ext->timer);
1165 #else
1166 		callout_init_mtx(&vbus_ext->timer, &vbus_ext->lock, 0);
1167 #endif
1168 		if (hpt_init_vbus(vbus_ext)) {
1169 			os_printk("fail to initialize hardware");
1170 			break; /* FIXME */
1171 		}
1172 	}
1173 
1174 	/* register CAM interface */
1175 	ldm_for_each_vbus(vbus, vbus_ext) {
1176 		struct cam_devq *devq;
1177 		struct ccb_setasync	ccb;
1178 
1179 		if (bus_dma_tag_create(NULL,/* parent */
1180 				4,	/* alignment */
1181 				BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1182 				BUS_SPACE_MAXADDR,	/* lowaddr */
1183 				BUS_SPACE_MAXADDR, 	/* highaddr */
1184 				NULL, NULL, 		/* filter, filterarg */
1185 				PAGE_SIZE * (os_max_sg_descriptors-1),	/* maxsize */
1186 				os_max_sg_descriptors,	/* nsegments */
1187 				0x10000,	/* maxsegsize */
1188 				BUS_DMA_WAITOK,		/* flags */
1189 				busdma_lock_mutex,	/* lockfunc */
1190 				&vbus_ext->lock,		/* lockfuncarg */
1191 				&vbus_ext->io_dmat	/* tag */))
1192 		{
1193 			return ;
1194 		}
1195 
1196 		for (i=0; i<os_max_queue_comm; i++) {
1197 			POS_CMDEXT ext = (POS_CMDEXT)malloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1198 			if (!ext) {
1199 				os_printk("Can't alloc cmdext(%d)", i);
1200 				return ;
1201 			}
1202 			ext->vbus_ext = vbus_ext;
1203 			ext->next = vbus_ext->cmdext_list;
1204 			vbus_ext->cmdext_list = ext;
1205 
1206 			if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1207 				os_printk("Can't create dma map(%d)", i);
1208 				return ;
1209 			}
1210 #if (__FreeBSD_version >= 1000510)
1211 			callout_init_mtx(&ext->timeout, &vbus_ext->lock, 0);
1212 #endif
1213 		}
1214 
1215 		if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1216 			os_printk("cam_simq_alloc failed");
1217 			return ;
1218 		}
1219 #if (__FreeBSD_version >= 1000510)
1220 		vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1221 				vbus_ext, unit_number, &vbus_ext->lock, os_max_queue_comm, /*tagged*/8,  devq);
1222 
1223 #else
1224 		vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1225 				vbus_ext, unit_number, &Giant, os_max_queue_comm, /*tagged*/8,  devq);
1226 #endif
1227 		unit_number++;
1228 		if (!vbus_ext->sim) {
1229 			os_printk("cam_sim_alloc failed");
1230 			cam_simq_free(devq);
1231 			return ;
1232 		}
1233 
1234 		hpt_lock_vbus(vbus_ext);
1235 		if (xpt_bus_register(vbus_ext->sim, NULL, 0) != CAM_SUCCESS) {
1236 			hpt_unlock_vbus(vbus_ext);
1237 			os_printk("xpt_bus_register failed");
1238 			cam_sim_free(vbus_ext->sim, /*free devq*/ TRUE);
1239 			vbus_ext->sim = NULL;
1240 			return ;
1241 		}
1242 
1243 		if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1244 				cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1245 				CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1246 		{
1247 			hpt_unlock_vbus(vbus_ext);
1248 			os_printk("xpt_create_path failed");
1249 			xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1250 			cam_sim_free(vbus_ext->sim, /*free_devq*/TRUE);
1251 			vbus_ext->sim = NULL;
1252 			return ;
1253 		}
1254 
1255 		memset(&ccb, 0, sizeof(ccb));
1256 		xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1257 		ccb.ccb_h.func_code = XPT_SASYNC_CB;
1258 		ccb.event_enable = AC_LOST_DEVICE;
1259 		ccb.callback = hpt_async;
1260 		ccb.callback_arg = vbus_ext;
1261 		xpt_action((union ccb *)&ccb);
1262 		hpt_unlock_vbus(vbus_ext);
1263 
1264 		for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1265 			int rid = 0;
1266 			if ((hba->irq_res = bus_alloc_resource_any(hba->pcidev,
1267 				SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1268 			{
1269 				os_printk("can't allocate interrupt");
1270 				return ;
1271 			}
1272 #if (__FreeBSD_version >= 1000510)
1273 			if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM | INTR_MPSAFE,
1274 #else
1275 			if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_TYPE_CAM,
1276 #endif
1277 				NULL, hpt_pci_intr, vbus_ext, &hba->irq_handle))
1278 			{
1279 				os_printk("can't set up interrupt");
1280 				return ;
1281 			}
1282 			hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1283 
1284 		}
1285 
1286 		vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1287 									hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1288 		if (!vbus_ext->shutdown_eh)
1289 			os_printk("Shutdown event registration failed");
1290 	}
1291 
1292 	ldm_for_each_vbus(vbus, vbus_ext) {
1293 		TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1294 		if (vbus_ext->tasks)
1295 			TASK_ENQUEUE(&vbus_ext->worker);
1296 	}
1297 
1298 	make_dev(&hpt_cdevsw, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1299 	    S_IRUSR | S_IWUSR, "%s", driver_name);
1300 }
1301 
1302 #if defined(KLD_MODULE)
1303 
1304 typedef struct driverlink *driverlink_t;
1305 struct driverlink {
1306 	kobj_class_t	driver;
1307 	TAILQ_ENTRY(driverlink) link;	/* list of drivers in devclass */
1308 };
1309 
1310 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1311 
1312 struct devclass {
1313 	TAILQ_ENTRY(devclass) link;
1314 	devclass_t	parent;		/* parent in devclass hierarchy */
1315 	driver_list_t	drivers;     /* bus devclasses store drivers for bus */
1316 	char		*name;
1317 	device_t	*devices;	/* array of devices indexed by unit */
1318 	int		maxunit;	/* size of devices array */
1319 };
1320 
1321 static void override_kernel_driver(void)
1322 {
1323 	driverlink_t dl, dlfirst;
1324 	driver_t *tmpdriver;
1325 	devclass_t dc = devclass_find("pci");
1326 
1327 	if (dc){
1328 		dlfirst = TAILQ_FIRST(&dc->drivers);
1329 		for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1330 			if(strcmp(dl->driver->name, driver_name) == 0) {
1331 				tmpdriver=dl->driver;
1332 				dl->driver=dlfirst->driver;
1333 				dlfirst->driver=tmpdriver;
1334 				break;
1335 			}
1336 		}
1337 	}
1338 }
1339 
1340 #else
1341 #define override_kernel_driver()
1342 #endif
1343 
1344 static void hpt_init(void *dummy)
1345 {
1346 	if (bootverbose)
1347 		os_printk("%s %s", driver_name_long, driver_ver);
1348 
1349 	override_kernel_driver();
1350 	init_config();
1351 
1352 	hpt_ich.ich_func = hpt_final_init;
1353 	hpt_ich.ich_arg = NULL;
1354 	if (config_intrhook_establish(&hpt_ich) != 0) {
1355 		printf("%s: cannot establish configuration hook\n",
1356 		    driver_name_long);
1357 	}
1358 
1359 }
1360 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1361 
1362 /*
1363  * CAM driver interface
1364  */
1365 static device_method_t driver_methods[] = {
1366 	/* Device interface */
1367 	DEVMETHOD(device_probe,		hpt_probe),
1368 	DEVMETHOD(device_attach,	hpt_attach),
1369 	DEVMETHOD(device_detach,	hpt_detach),
1370 	DEVMETHOD(device_shutdown,	hpt_shutdown),
1371 	{ 0, 0 }
1372 };
1373 
1374 static driver_t hpt_pci_driver = {
1375 	driver_name,
1376 	driver_methods,
1377 	sizeof(HBA)
1378 };
1379 
1380 static devclass_t	hpt_devclass;
1381 
1382 #ifndef TARGETNAME
1383 #error "no TARGETNAME found"
1384 #endif
1385 
1386 /* use this to make TARGETNAME be expanded */
1387 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1388 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1389 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1390 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, 0, 0);
1391 __MODULE_VERSION(TARGETNAME, 1);
1392 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1393 
1394 static int hpt_open(struct cdev *dev, int flags, int devtype, struct thread *td)
1395 {
1396 	return 0;
1397 }
1398 
1399 static int hpt_close(struct cdev *dev, int flags, int devtype, struct thread *td)
1400 {
1401 	return 0;
1402 }
1403 
1404 static int hpt_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
1405 {
1406 	PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1407 	IOCTL_ARG ioctl_args;
1408 	HPT_U32 bytesReturned = 0;
1409 
1410 	switch (cmd){
1411 	case HPT_DO_IOCONTROL:
1412 	{
1413 		if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1414 			KdPrint(("<8>ioctl=%x in=%p len=%d out=%p len=%d\n",
1415 				piop->dwIoControlCode,
1416 				piop->lpInBuffer,
1417 				piop->nInBufferSize,
1418 				piop->lpOutBuffer,
1419 				piop->nOutBufferSize));
1420 
1421 		memset(&ioctl_args, 0, sizeof(ioctl_args));
1422 
1423 		ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1424 		ioctl_args.nInBufferSize = piop->nInBufferSize;
1425 		ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1426 		ioctl_args.lpBytesReturned = &bytesReturned;
1427 
1428 		if (ioctl_args.nInBufferSize) {
1429 			ioctl_args.lpInBuffer = malloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1430 			if (!ioctl_args.lpInBuffer)
1431 				goto invalid;
1432 			if (copyin((void*)piop->lpInBuffer,
1433 					ioctl_args.lpInBuffer, piop->nInBufferSize))
1434 				goto invalid;
1435 		}
1436 
1437 		if (ioctl_args.nOutBufferSize) {
1438 			ioctl_args.lpOutBuffer = malloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK | M_ZERO);
1439 			if (!ioctl_args.lpOutBuffer)
1440 				goto invalid;
1441 		}
1442 
1443 #if __FreeBSD_version < 1000510
1444 		mtx_lock(&Giant);
1445 #endif
1446 
1447 		hpt_do_ioctl(&ioctl_args);
1448 
1449 #if __FreeBSD_version < 1000510
1450 		mtx_unlock(&Giant);
1451 #endif
1452 
1453 		if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1454 			if (piop->nOutBufferSize) {
1455 				if (copyout(ioctl_args.lpOutBuffer,
1456 					(void*)piop->lpOutBuffer, piop->nOutBufferSize))
1457 					goto invalid;
1458 			}
1459 			if (piop->lpBytesReturned) {
1460 				if (copyout(&bytesReturned,
1461 					(void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1462 					goto invalid;
1463 			}
1464 			if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1465 			if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1466 			return 0;
1467 		}
1468 invalid:
1469 		if (ioctl_args.lpInBuffer) free(ioctl_args.lpInBuffer, M_DEVBUF);
1470 		if (ioctl_args.lpOutBuffer) free(ioctl_args.lpOutBuffer, M_DEVBUF);
1471 		return EFAULT;
1472 	}
1473 	return EFAULT;
1474 	}
1475 
1476 	case HPT_SCAN_BUS:
1477 	{
1478 		return hpt_rescan_bus();
1479 	}
1480 	default:
1481 		KdPrint(("invalid command!"));
1482 		return EFAULT;
1483 	}
1484 
1485 }
1486 
1487 static int	hpt_rescan_bus(void)
1488 {
1489 	union ccb			*ccb;
1490 	PVBUS 				vbus;
1491 	PVBUS_EXT			vbus_ext;
1492 #if (__FreeBSD_version < 1000510)
1493 	mtx_lock(&Giant);
1494 #endif
1495 	ldm_for_each_vbus(vbus, vbus_ext) {
1496 		if ((ccb = xpt_alloc_ccb()) == NULL)
1497 		{
1498 			return(ENOMEM);
1499 		}
1500 #if (__FreeBSD_version < 1000510)
1501 		if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(vbus_ext->sim),
1502 #else
1503 		if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(vbus_ext->sim),
1504 #endif
1505 			CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1506 		{
1507 			xpt_free_ccb(ccb);
1508 			return(EIO);
1509 		}
1510 		xpt_rescan(ccb);
1511 	}
1512 #if (__FreeBSD_version < 1000510)
1513 	mtx_unlock(&Giant);
1514 #endif
1515 	return(0);
1516 }
1517 
1518