d744817b312e959d652104d954aac5a0ae12a8ed
[dragonfly.git] / 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: head/sys/dev/hptrr/hptrr_osm_bsd.c 313554 2017-02-10 15:18:41Z pfg $
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 HIM *hpt_match(device_t dev)
42 {
43         PCI_ID pci_id;
44         int i;
45         HIM *him;
46
47         /* Some of supported chips are used not only by HPT. */
48         if (pci_get_vendor(dev) != 0x1103 && !attach_generic)
49                 return (NULL);
50         for (him = him_list; him; him = him->next) {
51                 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
52                         if ((pci_get_vendor(dev) == pci_id.vid) &&
53                                 (pci_get_device(dev) == pci_id.did)){
54                                 return (him);
55                         }
56                 }
57         }
58         return (NULL);
59 }
60
61 static int hpt_probe(device_t dev)
62 {
63         HIM *him;
64
65         him = hpt_match(dev);
66         if (him != NULL) {
67                 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
68                         pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
69                             ));
70                 device_set_desc(dev, him->name);
71                 return (BUS_PROBE_DEFAULT);
72         }
73
74         return (ENXIO);
75 }
76
77 static int hpt_attach(device_t dev)
78 {
79         PHBA hba = (PHBA)device_get_softc(dev);
80         HIM *him;
81         PCI_ID pci_id;
82         HPT_UINT size;
83         PVBUS vbus;
84         PVBUS_EXT vbus_ext;
85
86         KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
87
88         him = hpt_match(dev);
89         hba->ext_type = EXT_TYPE_HBA;
90         hba->ldm_adapter.him = him;
91
92         pci_enable_busmaster(dev);
93
94         pci_id.vid = pci_get_vendor(dev);
95         pci_id.did = pci_get_device(dev);
96         pci_id.rev = pci_get_revid(dev);
97
98         size = him->get_adapter_size(&pci_id);
99         hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
100
101         hba->pcidev = dev;
102         hba->pciaddr.tree = 0;
103         hba->pciaddr.bus = pci_get_bus(dev);
104         hba->pciaddr.device = pci_get_slot(dev);
105         hba->pciaddr.function = pci_get_function(dev);
106
107         if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
108                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
109                 return ENXIO;
110         }
111
112         os_printk("adapter at PCI %d:%d:%d, IRQ %d",
113                 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
114
115         if (!ldm_register_adapter(&hba->ldm_adapter)) {
116                 size = ldm_get_vbus_size();
117                 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK |
118                     M_ZERO);
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 **)kmalloc(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                         kfree(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_assert_vbus_locked(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                 return -1;
311         }
312
313         pCmd->type = CMD_TYPE_FLUSH;
314         pCmd->flags.hard_flush = 1;
315         pCmd->target = vd;
316         pCmd->done = hpt_flush_done;
317         done = 0;
318         pCmd->priv = &done;
319
320         ldm_queue_cmd(pCmd);
321
322         if (!done) {
323                 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
324                         ldm_reset_vbus(vd->vbus);
325                 }
326         }
327
328         KdPrint(("flush result %d", pCmd->Result));
329
330         if (pCmd->Result!=RETURN_SUCCESS)
331                 result = -1;
332
333         ldm_free_cmds(pCmd);
334
335         return result;
336 }
337
338 static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
339 static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
340 {
341         PVBUS     vbus = (PVBUS)vbus_ext->vbus;
342         PHBA hba;
343         int i;
344
345         KdPrint(("hpt_shutdown_vbus"));
346
347         /* stop all ctl tasks and disable the worker taskqueue */
348         hpt_stop_tasks(vbus_ext);
349         hpt_lock_vbus(vbus_ext);
350         vbus_ext->worker.ta_context = NULL;
351
352         /* flush devices */
353         for (i=0; i<osm_max_targets; i++) {
354                 PVDEV vd = ldm_find_target(vbus, i);
355                 if (vd) {
356                         /* retry once */
357                         if (hpt_flush_vdev(vbus_ext, vd))
358                                 hpt_flush_vdev(vbus_ext, vd);
359                 }
360         }
361
362         ldm_shutdown(vbus);
363         hpt_unlock_vbus(vbus_ext);
364
365         ldm_release_vbus(vbus);
366
367         for (hba=vbus_ext->hba_list; hba; hba=hba->next)
368                 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
369
370         hpt_free_mem(vbus_ext);
371
372         while ((hba=vbus_ext->hba_list)) {
373                 vbus_ext->hba_list = hba->next;
374                 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
375         }
376
377         callout_stop_sync(&vbus_ext->timer);
378         lockuninit(&vbus_ext->lock);
379         kfree(vbus_ext, M_DEVBUF);
380         KdPrint(("hpt_shutdown_vbus done"));
381 }
382
383 static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
384 {
385         OSM_TASK *tasks;
386
387         tasks = vbus_ext->tasks;
388         vbus_ext->tasks = NULL;
389
390         while (tasks) {
391                 OSM_TASK *t = tasks;
392                 tasks = t->next;
393                 t->next = NULL;
394                 t->func(vbus_ext->vbus, t->data);
395         }
396 }
397
398 static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
399 {
400         if(vbus_ext){
401                 hpt_lock_vbus(vbus_ext);
402                 __hpt_do_tasks(vbus_ext);
403                 hpt_unlock_vbus(vbus_ext);
404         }
405 }
406
407 static void hpt_action(struct cam_sim *sim, union ccb *ccb);
408 static void hpt_poll(struct cam_sim *sim);
409 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
410 static void hpt_pci_intr(void *arg);
411
412 static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
413 {
414         POS_CMDEXT p = vbus_ext->cmdext_list;
415         if (p)
416                 vbus_ext->cmdext_list = p->next;
417         return p;
418 }
419
420 static __inline void cmdext_put(POS_CMDEXT p)
421 {
422         p->next = p->vbus_ext->cmdext_list;
423         p->vbus_ext->cmdext_list = p;
424 }
425
426 static void hpt_timeout(void *arg)
427 {
428         PCOMMAND pCmd = (PCOMMAND)arg;
429         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
430
431         KdPrint(("pCmd %p timeout", pCmd));
432
433         ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
434 }
435
436 static void os_cmddone(PCOMMAND pCmd)
437 {
438         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
439         union ccb *ccb = ext->ccb;
440
441         KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
442
443         callout_stop(&ext->timeout);
444
445         switch(pCmd->Result) {
446         case RETURN_SUCCESS:
447                 ccb->ccb_h.status = CAM_REQ_CMP;
448                 break;
449         case RETURN_BAD_DEVICE:
450                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
451                 break;
452         case RETURN_DEVICE_BUSY:
453                 ccb->ccb_h.status = CAM_BUSY;
454                 break;
455         case RETURN_INVALID_REQUEST:
456                 ccb->ccb_h.status = CAM_REQ_INVALID;
457                 break;
458         case RETURN_SELECTION_TIMEOUT:
459                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
460                 break;
461         case RETURN_RETRY:
462                 ccb->ccb_h.status = CAM_BUSY;
463                 break;
464         default:
465                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
466                 break;
467         }
468
469         if (pCmd->flags.data_in) {
470                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
471         }
472         else if (pCmd->flags.data_out) {
473                 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
474         }
475
476         bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
477
478         cmdext_put(ext);
479         ldm_free_cmds(pCmd);
480         xpt_done(ccb);
481 }
482
483 static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
484 {
485         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
486         union ccb *ccb = ext->ccb;
487
488         if(logical)     {
489                 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
490                 pSg->size = ccb->csio.dxfer_len;
491                 pSg->eot = 1;
492                 return TRUE;
493         }
494
495         /* since we have provided physical sg, nobody will ask us to build physical sg */
496         HPT_ASSERT(0);
497         return FALSE;
498 }
499
500 static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
501 {
502         PCOMMAND pCmd = (PCOMMAND)arg;
503         POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
504         PSG psg = pCmd->psg;
505         int idx;
506
507         HPT_ASSERT(pCmd->flags.physical_sg);
508
509         if (error)
510                 panic("busdma error");
511
512         HPT_ASSERT(nsegs<=os_max_sg_descriptors);
513
514         if (nsegs != 0) {
515                 for (idx = 0; idx < nsegs; idx++, psg++) {
516                         psg->addr.bus = segs[idx].ds_addr;
517                         psg->size = segs[idx].ds_len;
518                         psg->eot = 0;
519                 }
520                         psg[-1].eot = 1;
521
522                 if (pCmd->flags.data_in) {
523                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
524                             BUS_DMASYNC_PREREAD);
525                 }
526                 else if (pCmd->flags.data_out) {
527                         bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map,
528                             BUS_DMASYNC_PREWRITE);
529                 }
530         }
531         callout_reset(&ext->timeout, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
532         ldm_queue_cmd(pCmd);
533 }
534
535 static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
536 {
537         PVBUS vbus = (PVBUS)vbus_ext->vbus;
538         PVDEV vd;
539         PCOMMAND pCmd;
540         POS_CMDEXT ext;
541         HPT_U8 *cdb;
542
543         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
544                 cdb = ccb->csio.cdb_io.cdb_ptr;
545         else
546                 cdb = ccb->csio.cdb_io.cdb_bytes;
547
548         KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
549                 ccb,
550                 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
551                 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
552         ));
553
554         /* ccb->ccb_h.path_id is not our bus id - don't check it */
555         if (ccb->ccb_h.target_lun != 0 ||
556                 ccb->ccb_h.target_id >= osm_max_targets ||
557                 (ccb->ccb_h.flags & CAM_CDB_PHYS))
558         {
559                 ccb->ccb_h.status = CAM_TID_INVALID;
560                 xpt_done(ccb);
561                 return;
562         }
563
564         vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
565
566         if (!vd) {
567                 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
568                 xpt_done(ccb);
569                 return;
570         }
571
572         switch (cdb[0]) {
573         case TEST_UNIT_READY:
574         case START_STOP_UNIT:
575         case SYNCHRONIZE_CACHE:
576                 ccb->ccb_h.status = CAM_REQ_CMP;
577                 break;
578
579         case INQUIRY:
580                 {
581                         PINQUIRYDATA inquiryData;
582                         memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
583                         inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
584
585                         inquiryData->AdditionalLength = 31;
586                         inquiryData->CommandQueue = 1;
587                         memcpy(&inquiryData->VendorId, "HPT     ", 8);
588                         memcpy(&inquiryData->ProductId, "DISK 0_0        ", 16);
589
590                         if (vd->target_id / 10) {
591                                 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
592                                 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
593                         }
594                         else
595                                 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
596
597                         memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
598
599                         ccb->ccb_h.status = CAM_REQ_CMP;
600                 }
601                 break;
602
603         case READ_CAPACITY:
604         {
605                 HPT_U8 *rbuf = ccb->csio.data_ptr;
606                 HPT_U32 cap;
607
608                 if (vd->capacity>0xfffffffful)
609                         cap = 0xfffffffful;
610                 else
611                         cap = vd->capacity - 1;
612
613                 rbuf[0] = (HPT_U8)(cap>>24);
614                 rbuf[1] = (HPT_U8)(cap>>16);
615                 rbuf[2] = (HPT_U8)(cap>>8);
616                 rbuf[3] = (HPT_U8)cap;
617                 rbuf[4] = 0;
618                 rbuf[5] = 0;
619                 rbuf[6] = 2;
620                 rbuf[7] = 0;
621
622                 ccb->ccb_h.status = CAM_REQ_CMP;
623                 break;
624         }
625
626         case SERVICE_ACTION_IN:
627         {
628                 HPT_U8 *rbuf = ccb->csio.data_ptr;
629                 HPT_U64 cap = vd->capacity - 1;
630
631                 rbuf[0] = (HPT_U8)(cap>>56);
632                 rbuf[1] = (HPT_U8)(cap>>48);
633                 rbuf[2] = (HPT_U8)(cap>>40);
634                 rbuf[3] = (HPT_U8)(cap>>32);
635                 rbuf[4] = (HPT_U8)(cap>>24);
636                 rbuf[5] = (HPT_U8)(cap>>16);
637                 rbuf[6] = (HPT_U8)(cap>>8);
638                 rbuf[7] = (HPT_U8)cap;
639                 rbuf[8] = 0;
640                 rbuf[9] = 0;
641                 rbuf[10] = 2;
642                 rbuf[11] = 0;
643
644                 ccb->ccb_h.status = CAM_REQ_CMP;
645                 break;
646         }
647
648         case READ_6:
649         case READ_10:
650         case READ_16:
651         case WRITE_6:
652         case WRITE_10:
653         case WRITE_16:
654         case 0x13:
655         case 0x2f:
656         {
657                 int error;
658
659                 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
660                 if(!pCmd){
661                         KdPrint(("Failed to allocate command!"));
662                         ccb->ccb_h.status = CAM_BUSY;
663                         break;
664                 }
665
666                 switch (cdb[0]) {
667                 case READ_6:
668                 case WRITE_6:
669                 case 0x13:
670                         pCmd->uCmd.Ide.Lba =  ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
671                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
672                         break;
673                 case READ_16:
674                 case WRITE_16:
675                 {
676                         HPT_U64 block =
677                                 ((HPT_U64)cdb[2]<<56) |
678                                 ((HPT_U64)cdb[3]<<48) |
679                                 ((HPT_U64)cdb[4]<<40) |
680                                 ((HPT_U64)cdb[5]<<32) |
681                                 ((HPT_U64)cdb[6]<<24) |
682                                 ((HPT_U64)cdb[7]<<16) |
683                                 ((HPT_U64)cdb[8]<<8) |
684                                 ((HPT_U64)cdb[9]);
685                         pCmd->uCmd.Ide.Lba = block;
686                         pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
687                         break;
688                 }
689
690                 default:
691                         pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
692                         pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
693                         break;
694                 }
695
696                 switch (cdb[0]) {
697                 case READ_6:
698                 case READ_10:
699                 case READ_16:
700                         pCmd->flags.data_in = 1;
701                         break;
702                 case WRITE_6:
703                 case WRITE_10:
704                 case WRITE_16:
705                         pCmd->flags.data_out = 1;
706                         break;
707                 }
708                 pCmd->priv = ext = cmdext_get(vbus_ext);
709                 HPT_ASSERT(ext);
710                 ext->ccb = ccb;
711                 pCmd->target = vd;
712                 pCmd->done = os_cmddone;
713                 pCmd->buildsgl = os_buildsgl;
714                 pCmd->psg = ext->psg;
715                 pCmd->flags.physical_sg = 1;
716                 error = bus_dmamap_load_ccb(vbus_ext->io_dmat,
717                                         ext->dma_map,
718                                         ccb,
719                                         hpt_io_dmamap_callback, pCmd,
720                                         BUS_DMA_WAITOK
721                                         );
722                 KdPrint(("bus_dmamap_load return %d", error));
723                 if (error && error!=EINPROGRESS) {
724                         os_printk("bus_dmamap_load error %d", error);
725                         cmdext_put(ext);
726                         ldm_free_cmds(pCmd);
727                         ccb->ccb_h.status = CAM_REQ_CMP_ERR;
728                         xpt_done(ccb);
729                 }
730                 return;
731         }
732
733         default:
734                 ccb->ccb_h.status = CAM_REQ_INVALID;
735                 break;
736         }
737
738         xpt_done(ccb);
739         return;
740 }
741
742 static void hpt_action(struct cam_sim *sim, union ccb *ccb)
743 {
744         PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
745
746         KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
747
748         hpt_assert_vbus_locked(vbus_ext);
749         switch (ccb->ccb_h.func_code) {
750
751         case XPT_SCSI_IO:
752                 hpt_scsi_io(vbus_ext, ccb);
753                 return;
754
755         case XPT_RESET_BUS:
756                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
757                 break;
758
759         case XPT_GET_TRAN_SETTINGS:
760         case XPT_SET_TRAN_SETTINGS:
761                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
762                 break;
763
764         case XPT_CALC_GEOMETRY:
765                 cam_calc_geometry(&ccb->ccg, 1);
766                 break;
767
768         case XPT_PATH_INQ:
769         {
770                 struct ccb_pathinq *cpi = &ccb->cpi;
771
772                 cpi->version_num = 1;
773                 cpi->hba_inquiry = PI_SDTR_ABLE;
774                 cpi->target_sprt = 0;
775                 cpi->hba_misc = PIM_NOBUSRESET;
776                 cpi->hba_eng_cnt = 0;
777                 cpi->max_target = osm_max_targets;
778                 cpi->max_lun = 0;
779                 cpi->unit_number = cam_sim_unit(sim);
780                 cpi->bus_id = cam_sim_bus(sim);
781                 cpi->initiator_id = osm_max_targets;
782                 cpi->base_transfer_speed = 3300;
783
784                 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
785                 strlcpy(cpi->hba_vid, "HPT   ", HBA_IDLEN);
786                 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
787                 cpi->transport = XPORT_SPI;
788                 cpi->transport_version = 2;
789                 cpi->protocol = PROTO_SCSI;
790                 cpi->protocol_version = SCSI_REV_2;
791                 cpi->maxio = HPTRR_DFLTPHYS;
792                 cpi->ccb_h.status = CAM_REQ_CMP;
793                 break;
794         }
795
796         default:
797                 ccb->ccb_h.status = CAM_REQ_INVALID;
798                 break;
799         }
800
801         xpt_done(ccb);
802         return;
803 }
804
805 static void hpt_pci_intr(void *arg)
806 {
807         PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
808         hpt_lock_vbus(vbus_ext);
809         ldm_intr((PVBUS)vbus_ext->vbus);
810         hpt_unlock_vbus(vbus_ext);
811 }
812
813 static void hpt_poll(struct cam_sim *sim)
814 {
815         PVBUS_EXT vbus_ext = cam_sim_softc(sim);
816         hpt_assert_vbus_locked(vbus_ext);
817         ldm_intr((PVBUS)vbus_ext->vbus);
818 }
819
820 static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
821 {
822         KdPrint(("hpt_async"));
823 }
824
825 static int hpt_shutdown(device_t dev)
826 {
827         KdPrint(("hpt_shutdown(dev=%p)", dev));
828         return 0;
829 }
830
831 static int hpt_detach(device_t dev)
832 {
833         /* we don't allow the driver to be unloaded. */
834         return EBUSY;
835 }
836
837 static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
838 {
839         arg->ioctl_cmnd = NULL;
840         wakeup(arg);
841 }
842
843 static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
844 {
845         ioctl_args->result = -1;
846         ioctl_args->done = hpt_ioctl_done;
847         ioctl_args->ioctl_cmnd = (void *)1;
848
849         hpt_lock_vbus(vbus_ext);
850         ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
851
852         while (ioctl_args->ioctl_cmnd) {
853                 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
854                         break;
855                 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
856                 __hpt_do_tasks(vbus_ext);
857         }
858
859         /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
860
861         hpt_unlock_vbus(vbus_ext);
862 }
863
864 static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
865 {
866         PVBUS vbus;
867         PVBUS_EXT vbus_ext;
868
869         ldm_for_each_vbus(vbus, vbus_ext) {
870                 __hpt_do_ioctl(vbus_ext, ioctl_args);
871                 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
872                         return;
873         }
874 }
875
876 #define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
877         IOCTL_ARG arg;\
878         arg.dwIoControlCode = code;\
879         arg.lpInBuffer = inbuf;\
880         arg.lpOutBuffer = outbuf;\
881         arg.nInBufferSize = insize;\
882         arg.nOutBufferSize = outsize;\
883         arg.lpBytesReturned = NULL;\
884         hpt_do_ioctl(&arg);\
885         arg.result;\
886 })
887
888 #define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
889
890 static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
891 {
892         int i;
893         HPT_U32 count = nMaxCount-1;
894
895         if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
896                         &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
897                 return -1;
898
899         nMaxCount = (int)pIds[0];
900         for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
901         return nMaxCount;
902 }
903
904 static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
905 {
906         return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
907                                 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
908 }
909
910 /* not belong to this file logically, but we want to use ioctl interface */
911 static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
912 {
913         LOGICAL_DEVICE_INFO_V3 devinfo;
914         int i, result;
915         DEVICEID param[2] = { id, 0 };
916
917         if (hpt_get_device_info_v3(id, &devinfo))
918                 return -1;
919
920         if (devinfo.Type!=LDT_ARRAY)
921                 return -1;
922
923         if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
924                 param[1] = AS_REBUILD_ABORT;
925         else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
926                 param[1] = AS_VERIFY_ABORT;
927         else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
928                 param[1] = AS_INITIALIZE_ABORT;
929         else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
930                 param[1] = AS_TRANSFORM_ABORT;
931         else
932                 return -1;
933
934         KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
935         result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
936                                 param, sizeof(param), NULL, 0);
937
938         for (i=0; i<devinfo.u.array.nDisk; i++)
939                 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
940                         __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
941
942         return result;
943 }
944
945 static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
946 {
947         DEVICEID ids[32];
948         int i, count;
949
950         count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
951
952         for (i=0; i<count; i++)
953                 __hpt_stop_tasks(vbus_ext, ids[i]);
954 }
955
956 static  d_open_t        hpt_open;
957 static  d_close_t       hpt_close;
958 static  d_ioctl_t       hpt_ioctl;
959 static  int             hpt_rescan_bus(void);
960 static  void            hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb);
961
962 static struct dev_ops hpt_ops = {
963         { driver_name, 0, D_MPSAFE },
964         .d_open =       hpt_open,
965         .d_close =      hpt_close,
966         .d_ioctl =      hpt_ioctl,
967 };
968
969 static struct intr_config_hook hpt_ich;
970
971 /*
972  * hpt_final_init will be called after all hpt_attach.
973  */
974 static void hpt_final_init(void *dummy)
975 {
976         int       i;
977         PVBUS_EXT vbus_ext;
978         PVBUS vbus;
979         PHBA hba;
980
981         /* Clear the config hook */
982         config_intrhook_disestablish(&hpt_ich);
983
984         /* allocate memory */
985         i = 0;
986         ldm_for_each_vbus(vbus, vbus_ext) {
987                 if (hpt_alloc_mem(vbus_ext)) {
988                         os_printk("out of memory");
989                         return;
990                 }
991                 i++;
992         }
993
994         if (!i) {
995                 if (bootverbose)
996                         os_printk("no controller detected.");
997                 return;
998         }
999
1000         /* initializing hardware */
1001         ldm_for_each_vbus(vbus, vbus_ext) {
1002                 /* make timer available here */
1003                 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1004                 callout_init_lk(&vbus_ext->timer, &vbus_ext->lock);
1005                 if (hpt_init_vbus(vbus_ext)) {
1006                         os_printk("fail to initialize hardware");
1007                         break; /* FIXME */
1008                 }
1009         }
1010
1011         /* register CAM interface */
1012         ldm_for_each_vbus(vbus, vbus_ext) {
1013                 struct cam_devq *devq;
1014                 struct ccb_setasync *ccb;
1015
1016                 if (bus_dma_tag_create(NULL,/* parent */
1017                                 4,      /* alignment */
1018                                 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1019                                 BUS_SPACE_MAXADDR,      /* lowaddr */
1020                                 BUS_SPACE_MAXADDR,      /* highaddr */
1021                                 NULL, NULL,             /* filter, filterarg */
1022                                 PAGE_SIZE * (os_max_sg_descriptors-1),  /* maxsize */
1023                                 os_max_sg_descriptors,  /* nsegments */
1024                                 0x10000,        /* maxsegsize */
1025                                 BUS_DMA_WAITOK,         /* flags */
1026                                 &vbus_ext->io_dmat      /* tag */))
1027                 {
1028                         return ;
1029                 }
1030
1031                 for (i=0; i<os_max_queue_comm; i++) {
1032                         POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1033                         if (!ext) {
1034                                 os_printk("Can't alloc cmdext(%d)", i);
1035                                 return ;
1036                         }
1037                         ext->vbus_ext = vbus_ext;
1038                         ext->next = vbus_ext->cmdext_list;
1039                         vbus_ext->cmdext_list = ext;
1040
1041                         if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1042                                 os_printk("Can't create dma map(%d)", i);
1043                                 return ;
1044                         }
1045                         callout_init_lk(&ext->timeout, &vbus_ext->lock);
1046                 }
1047
1048                 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1049                         os_printk("cam_simq_alloc failed");
1050                         return ;
1051                 }
1052
1053                 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1054                                 vbus_ext, 0, &vbus_ext->lock, os_max_queue_comm,
1055                                 /*tagged*/8,  devq);
1056                 cam_simq_release(devq);
1057
1058                 if (!vbus_ext->sim) {
1059                         os_printk("cam_sim_alloc failed");
1060                         return ;
1061                 }
1062
1063                 hpt_lock_vbus(vbus_ext);
1064                 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1065                         os_printk("xpt_bus_register failed");
1066                         cam_sim_free(vbus_ext->sim);
1067                         hpt_unlock_vbus(vbus_ext);
1068                         vbus_ext->sim = NULL;
1069                         return ;
1070                 }
1071
1072                 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1073                                 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1074                                 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1075                 {
1076                         os_printk("xpt_create_path failed");
1077                         xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1078                         cam_sim_free(vbus_ext->sim);
1079                         hpt_unlock_vbus(vbus_ext);
1080                         vbus_ext->sim = NULL;
1081                         return ;
1082                 }
1083                 hpt_unlock_vbus(vbus_ext);
1084
1085                 ccb = &xpt_alloc_ccb()->csa;
1086                 xpt_setup_ccb(&ccb->ccb_h, vbus_ext->path, /*priority*/5);
1087                 ccb->ccb_h.func_code = XPT_SASYNC_CB;
1088                 ccb->event_enable = AC_LOST_DEVICE;
1089                 ccb->callback = hpt_async;
1090                 ccb->callback_arg = vbus_ext;
1091                 xpt_action((union ccb *)ccb);
1092                 xpt_free_ccb(&ccb->ccb_h);
1093
1094                 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1095                         int rid = 0;
1096                         if ((hba->irq_res = bus_alloc_resource_any(hba->pcidev,
1097                                 SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1098                         {
1099                                 os_printk("can't allocate interrupt");
1100                                 return ;
1101                         }
1102
1103                         if (bus_setup_intr(hba->pcidev, hba->irq_res, INTR_MPSAFE,
1104                                 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1105                         {
1106                                 os_printk("can't set up interrupt");
1107                                 return ;
1108                         }
1109                         hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1110                 }
1111
1112                 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1113                                                                         hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1114                 if (!vbus_ext->shutdown_eh)
1115                         os_printk("Shutdown event registration failed");
1116         }
1117
1118         ldm_for_each_vbus(vbus, vbus_ext) {
1119                 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1120                 if (vbus_ext->tasks)
1121                         TASK_ENQUEUE(&vbus_ext->worker);
1122         }
1123
1124         make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1125             S_IRUSR | S_IWUSR, "%s", driver_name);
1126 }
1127
1128 #if defined(KLD_MODULE)
1129
1130 typedef struct driverlink *driverlink_t;
1131 struct driverlink {
1132         kobj_class_t    driver;
1133         TAILQ_ENTRY(driverlink) link;   /* list of drivers in devclass */
1134 };
1135
1136 typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1137
1138 struct devclass {
1139         TAILQ_ENTRY(devclass) link;
1140         devclass_t      parent;         /* parent in devclass hierarchy */
1141         driver_list_t   drivers;     /* bus devclasses store drivers for bus */
1142         char            *name;
1143         device_t        *devices;       /* array of devices indexed by unit */
1144         int             maxunit;        /* size of devices array */
1145 };
1146
1147 static void override_kernel_driver(void)
1148 {
1149         driverlink_t dl, dlfirst;
1150         driver_t *tmpdriver;
1151         devclass_t dc = devclass_find("pci");
1152
1153         if (dc){
1154                 dlfirst = TAILQ_FIRST(&dc->drivers);
1155                 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1156                         if(strcmp(dl->driver->name, driver_name) == 0) {
1157                                 tmpdriver=dl->driver;
1158                                 dl->driver=dlfirst->driver;
1159                                 dlfirst->driver=tmpdriver;
1160                                 break;
1161                         }
1162                 }
1163         }
1164 }
1165
1166 #else
1167 #define override_kernel_driver()
1168 #endif
1169
1170 static void hpt_init(void *dummy)
1171 {
1172         if (bootverbose)
1173                 os_printk("%s %s", driver_name_long, driver_ver);
1174
1175         override_kernel_driver();
1176         init_config();
1177
1178         hpt_ich.ich_func = hpt_final_init;
1179         hpt_ich.ich_arg = NULL;
1180         hpt_ich.ich_desc = "hptrr";
1181         if (config_intrhook_establish(&hpt_ich) != 0) {
1182                 kprintf("%s: cannot establish configuration hook\n",
1183                     driver_name_long);
1184         }
1185
1186 }
1187 SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1188
1189 /*
1190  * CAM driver interface
1191  */
1192 static device_method_t driver_methods[] = {
1193         /* Device interface */
1194         DEVMETHOD(device_probe,         hpt_probe),
1195         DEVMETHOD(device_attach,        hpt_attach),
1196         DEVMETHOD(device_detach,        hpt_detach),
1197         DEVMETHOD(device_shutdown,      hpt_shutdown),
1198         DEVMETHOD_END
1199 };
1200
1201 static driver_t hpt_pci_driver = {
1202         driver_name,
1203         driver_methods,
1204         sizeof(HBA)
1205 };
1206
1207 static devclass_t       hpt_devclass;
1208
1209 #ifndef TARGETNAME
1210 #error "no TARGETNAME found"
1211 #endif
1212
1213 /* use this to make TARGETNAME be expanded */
1214 #define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1215 #define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1216 #define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
1217 __DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
1218 __MODULE_VERSION(TARGETNAME, 1);
1219 __MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1220
1221 static int hpt_open(struct dev_open_args *ap)
1222 {
1223         return 0;
1224 }
1225
1226 static int hpt_close(struct dev_close_args *ap)
1227 {
1228         return 0;
1229 }
1230
1231 static int hpt_ioctl(struct dev_ioctl_args *ap)
1232 {
1233         u_long cmd = ap->a_cmd;
1234         caddr_t data = ap->a_data;
1235         PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1236         IOCTL_ARG ioctl_args;
1237         HPT_U32 bytesReturned;
1238
1239         switch (cmd){
1240         case HPT_DO_IOCONTROL:
1241         {
1242                 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1243                         KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1244                                 piop->dwIoControlCode,
1245                                 piop->lpInBuffer,
1246                                 piop->nInBufferSize,
1247                                 piop->lpOutBuffer,
1248                                 piop->nOutBufferSize));
1249
1250                 memset(&ioctl_args, 0, sizeof(ioctl_args));
1251
1252                 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1253                 ioctl_args.nInBufferSize = piop->nInBufferSize;
1254                 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1255                 ioctl_args.lpBytesReturned = &bytesReturned;
1256
1257                 if (ioctl_args.nInBufferSize) {
1258                         ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1259                         if (!ioctl_args.lpInBuffer)
1260                                 goto invalid;
1261                         if (copyin((void*)piop->lpInBuffer,
1262                                         ioctl_args.lpInBuffer, piop->nInBufferSize))
1263                                 goto invalid;
1264                 }
1265
1266                 if (ioctl_args.nOutBufferSize) {
1267                         ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1268                         if (!ioctl_args.lpOutBuffer)
1269                                 goto invalid;
1270                 }
1271
1272                 hpt_do_ioctl(&ioctl_args);
1273
1274                 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1275                         if (piop->nOutBufferSize) {
1276                                 if (copyout(ioctl_args.lpOutBuffer,
1277                                         (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1278                                         goto invalid;
1279                         }
1280                         if (piop->lpBytesReturned) {
1281                                 if (copyout(&bytesReturned,
1282                                         (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1283                                         goto invalid;
1284                         }
1285                         if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1286                         if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1287                         return 0;
1288                 }
1289 invalid:
1290                 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1291                 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1292                 return EFAULT;
1293         }
1294         return EFAULT;
1295         }
1296
1297         case HPT_SCAN_BUS:
1298         {
1299                 return hpt_rescan_bus();
1300         }
1301         default:
1302                 KdPrint(("invalid command!"));
1303                 return EFAULT;
1304         }
1305
1306 }
1307
1308 static void     hpt_rescan_callback(struct cam_periph *periph, union ccb *ccb)
1309 {
1310         xpt_free_path(ccb->ccb_h.path);
1311         xpt_free_ccb(&ccb->ccb_h);
1312 }
1313
1314 static int      hpt_rescan_bus(void)
1315 {
1316         union ccb                       *ccb;
1317         PVBUS                           vbus;
1318         PVBUS_EXT                       vbus_ext;
1319
1320         ldm_for_each_vbus(vbus, vbus_ext) {
1321                 if ((ccb = xpt_alloc_ccb()) == NULL)
1322                         return(ENOMEM);
1323                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1324                     cam_sim_path(vbus_ext->sim),
1325                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1326                         xpt_free_ccb(&ccb->ccb_h);
1327                         return(EIO);
1328                 }
1329
1330                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
1331                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1332                 ccb->ccb_h.cbfcnp = hpt_rescan_callback;
1333                 ccb->crcn.flags = CAM_FLAG_NONE;
1334                 xpt_action(ccb); /* scan is now in progress */
1335         }
1336
1337         return(0);
1338 }