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hpt27xx(4): Use NULL for pointers.
[dragonfly.git] / sys / dev / raid / hpt27xx / osm_bsd.c
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0f74dae5
SW		 1/*-
2 * Copyright (c) 2011 HighPoint Technologies, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/dev/hpt27xx/osm_bsd.c,v 1.1 2011/12/28 23:26:58 delphij Exp $
27 */
28
29#include <dev/raid/hpt27xx/hpt27xx_config.h>
30
31#include <dev/raid/hpt27xx/os_bsd.h>
32#include <dev/raid/hpt27xx/hptintf.h>
33
34static int hpt_probe(device_t dev)
35{
36 PCI_ID pci_id;
37 HIM *him;
38 int i;
39 PHBA hba;
40
41 for (him = him_list; him; him = him->next) {
42 for (i=0; him->get_supported_device_id(i, &pci_id); i++) {
43 if (him->get_controller_count)
44 him->get_controller_count(&pci_id,0,0);
45 if ((pci_get_vendor(dev) == pci_id.vid) &&
46 (pci_get_device(dev) == pci_id.did)){
47 KdPrint(("hpt_probe: adapter at PCI %d:%d:%d, IRQ %d",
48 pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev), pci_get_irq(dev)
49 ));
50 device_set_desc(dev, him->name);
51 hba = (PHBA)device_get_softc(dev);
52 memset(hba, 0, sizeof(HBA));
53 hba->ext_type = EXT_TYPE_HBA;
54 hba->ldm_adapter.him = him;
55 return 0;
56 }
57 }
58 }
59
60 return (ENXIO);
61}
62
63static int hpt_attach(device_t dev)
64{
65 PHBA hba = (PHBA)device_get_softc(dev);
66 HIM *him = hba->ldm_adapter.him;
67 PCI_ID pci_id;
68 HPT_UINT size;
69 PVBUS vbus;
70 PVBUS_EXT vbus_ext;
71
72 KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
73
74 pci_enable_busmaster(dev);
75
76 pci_id.vid = pci_get_vendor(dev);
77 pci_id.did = pci_get_device(dev);
78 pci_id.rev = pci_get_revid(dev);
79 pci_id.subsys = (HPT_U32)(pci_get_subdevice(dev)) << 16 | pci_get_subvendor(dev);
80
81 size = him->get_adapter_size(&pci_id);
82 hba->ldm_adapter.him_handle = kmalloc(size, M_DEVBUF, M_WAITOK);
83 if (!hba->ldm_adapter.him_handle)
84 return ENXIO;
85
86 hba->pcidev = dev;
87 hba->pciaddr.tree = 0;
88 hba->pciaddr.bus = pci_get_bus(dev);
89 hba->pciaddr.device = pci_get_slot(dev);
90 hba->pciaddr.function = pci_get_function(dev);
91
92 if (!him->create_adapter(&pci_id, hba->pciaddr, hba->ldm_adapter.him_handle, hba)) {
93 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
94 return -1;
95 }
96
97 os_printk("adapter at PCI %d:%d:%d, IRQ %d",
98 hba->pciaddr.bus, hba->pciaddr.device, hba->pciaddr.function, pci_get_irq(dev));
99
100 if (!ldm_register_adapter(&hba->ldm_adapter)) {
101 size = ldm_get_vbus_size();
102 vbus_ext = kmalloc(sizeof(VBUS_EXT) + size, M_DEVBUF, M_WAITOK);
103 if (!vbus_ext) {
104 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
105 return -1;
106 }
107 memset(vbus_ext, 0, sizeof(VBUS_EXT));
108 vbus_ext->ext_type = EXT_TYPE_VBUS;
109 ldm_create_vbus((PVBUS)vbus_ext->vbus, vbus_ext);
110 ldm_register_adapter(&hba->ldm_adapter);
111 }
112
113 ldm_for_each_vbus(vbus, vbus_ext) {
114 if (hba->ldm_adapter.vbus==vbus) {
115 hba->vbus_ext = vbus_ext;
116 hba->next = vbus_ext->hba_list;
117 vbus_ext->hba_list = hba;
118 break;
119 }
120 }
121 return 0;
122}
123
124/*
125 * Maybe we'd better to use the bus_dmamem_alloc to alloc DMA memory,
126 * but there are some problems currently (alignment, etc).
127 */
128static __inline void *__get_free_pages(int order)
129{
130 /* don't use low memory - other devices may get starved */
131 return contigmalloc(PAGE_SIZE<<order,
132 M_DEVBUF, M_WAITOK, BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, PAGE_SIZE, 0);
133}
134
135static __inline void free_pages(void *p, int order)
136{
137 contigfree(p, PAGE_SIZE<<order, M_DEVBUF);
138}
139
140static int hpt_alloc_mem(PVBUS_EXT vbus_ext)
141{
142 PHBA hba;
143 struct freelist *f;
144 HPT_UINT i;
145 void **p;
146
147 for (hba = vbus_ext->hba_list; hba; hba = hba->next)
148 hba->ldm_adapter.him->get_meminfo(hba->ldm_adapter.him_handle);
149
150 ldm_get_mem_info((PVBUS)vbus_ext->vbus, 0);
151
152 for (f=vbus_ext->freelist_head; f; f=f->next) {
153 KdPrint(("%s: %d*%d=%d bytes",
154 f->tag, f->count, f->size, f->count*f->size));
155 for (i=0; i<f->count; i++) {
156 p = (void **)kmalloc(f->size, M_DEVBUF, M_WAITOK);
157 if (!p) return (ENXIO);
158 *p = f->head;
159 f->head = p;
160 }
161 }
162
163 for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
164 int order, size, j;
165
166 HPT_ASSERT((f->size & (f->alignment-1))==0);
167
168 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
169
170 KdPrint(("%s: %d*%d=%d bytes, order %d",
171 f->tag, f->count, f->size, f->count*f->size, order));
172 HPT_ASSERT(f->alignment<=PAGE_SIZE);
173
174 for (i=0; i<f->count;) {
175 p = (void **)__get_free_pages(order);
176 if (!p) return -1;
177 for (j = size/f->size; j && i<f->count; i++,j--) {
178 *p = f->head;
179 *(BUS_ADDRESS *)(p+1) = (BUS_ADDRESS)vtophys(p);
180 f->head = p;
181 p = (void **)((unsigned long)p + f->size);
182 }
183 }
184 }
185
186 HPT_ASSERT(PAGE_SIZE==DMAPOOL_PAGE_SIZE);
187
188 for (i=0; i<os_max_cache_pages; i++) {
189 p = (void **)__get_free_pages(0);
190 if (!p) return -1;
191 HPT_ASSERT(((HPT_UPTR)p & (DMAPOOL_PAGE_SIZE-1))==0);
192 dmapool_put_page((PVBUS)vbus_ext->vbus, p, (BUS_ADDRESS)vtophys(p));
193 }
194
195 return 0;
196}
197
198static void hpt_free_mem(PVBUS_EXT vbus_ext)
199{
200 struct freelist *f;
201 void *p;
202 int i;
203 BUS_ADDRESS bus;
204
205 for (f=vbus_ext->freelist_head; f; f=f->next) {
206#if DBG
207 if (f->count!=f->reserved_count) {
208 KdPrint(("memory leak for freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
209 }
210#endif
211 while ((p=freelist_get(f)))
212 kfree(p, M_DEVBUF);
213 }
214
215 for (i=0; i<os_max_cache_pages; i++) {
216 p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus);
217 HPT_ASSERT(p);
218 free_pages(p, 0);
219 }
220
221 for (f=vbus_ext->freelist_dma_head; f; f=f->next) {
222 int order, size;
223#if DBG
224 if (f->count!=f->reserved_count) {
225 KdPrint(("memory leak for dma freelist %s (%d/%d)", f->tag, f->count, f->reserved_count));
226 }
227#endif
228 for (order=0, size=PAGE_SIZE; size<f->size; order++, size<<=1) ;
229
230 while ((p=freelist_get_dma(f, &bus))) {
231 if (order)
232 free_pages(p, order);
233 else {
234 /* can't free immediately since other blocks in this page may still be in the list */
235 if (((HPT_UPTR)p & (PAGE_SIZE-1))==0)
236 dmapool_put_page((PVBUS)vbus_ext->vbus, p, bus);
237 }
238 }
239 }
240
241 while ((p = dmapool_get_page((PVBUS)vbus_ext->vbus, &bus)))
242 free_pages(p, 0);
243}
244
245static int hpt_init_vbus(PVBUS_EXT vbus_ext)
246{
247 PHBA hba;
248
249 for (hba = vbus_ext->hba_list; hba; hba = hba->next)
250 if (!hba->ldm_adapter.him->initialize(hba->ldm_adapter.him_handle)) {
251 KdPrint(("fail to initialize %p", hba));
252 return -1;
253 }
254
255 ldm_initialize_vbus((PVBUS)vbus_ext->vbus, &vbus_ext->hba_list->ldm_adapter);
256 return 0;
257}
258
259static void hpt_flush_done(PCOMMAND pCmd)
260{
261 PVDEV vd = pCmd->target;
262
263 if (mIsArray(vd->type) && vd->u.array.transform && vd!=vd->u.array.transform->target) {
264 vd = vd->u.array.transform->target;
265 HPT_ASSERT(vd);
266 pCmd->target = vd;
267 pCmd->Result = RETURN_PENDING;
268 vdev_queue_cmd(pCmd);
269 return;
270 }
271
272 *(int *)pCmd->priv = 1;
273 wakeup(pCmd);
274}
275
276/*
277 * flush a vdev (without retry).
278 */
279static int hpt_flush_vdev(PVBUS_EXT vbus_ext, PVDEV vd)
280{
281 PCOMMAND pCmd;
282 int result = 0, done;
283 HPT_UINT count;
284
285 KdPrint(("flusing dev %p", vd));
286
287 hpt_lock_vbus(vbus_ext);
288
289 if (mIsArray(vd->type) && vd->u.array.transform)
290 count = MAX(vd->u.array.transform->source->cmds_per_request,
291 vd->u.array.transform->target->cmds_per_request);
292 else
293 count = vd->cmds_per_request;
294
295 pCmd = ldm_alloc_cmds(vd->vbus, count);
296
297 if (!pCmd) {
298 hpt_unlock_vbus(vbus_ext);
299 return -1;
300 }
301
302 pCmd->type = CMD_TYPE_FLUSH;
303 pCmd->flags.hard_flush = 1;
304 pCmd->target = vd;
305 pCmd->done = hpt_flush_done;
306 done = 0;
307 pCmd->priv = &done;
308
309 ldm_queue_cmd(pCmd);
310
311 if (!done) {
312 while (hpt_sleep(vbus_ext, pCmd, 0, "hptfls", HPT_OSM_TIMEOUT)) {
313 ldm_reset_vbus(vd->vbus);
314 }
315 }
316
317 KdPrint(("flush result %d", pCmd->Result));
318
319 if (pCmd->Result!=RETURN_SUCCESS)
320 result = -1;
321
322 ldm_free_cmds(pCmd);
323
324 hpt_unlock_vbus(vbus_ext);
325
326 return result;
327}
328
329static void hpt_stop_tasks(PVBUS_EXT vbus_ext);
330static void hpt_shutdown_vbus(PVBUS_EXT vbus_ext, int howto)
331{
332 PVBUS vbus = (PVBUS)vbus_ext->vbus;
333 PHBA hba;
334 int i;
335
336 KdPrint(("hpt_shutdown_vbus"));
337
338 /* stop all ctl tasks and disable the worker taskqueue */
339 hpt_stop_tasks(vbus_ext);
340 vbus_ext->worker.ta_context = 0;
341
342 /* flush devices */
343 for (i=0; i<osm_max_targets; i++) {
344 PVDEV vd = ldm_find_target(vbus, i);
345 if (vd) {
346 /* retry once */
347 if (hpt_flush_vdev(vbus_ext, vd))
348 hpt_flush_vdev(vbus_ext, vd);
349 }
350 }
351
352 hpt_lock_vbus(vbus_ext);
353 ldm_shutdown(vbus);
354 hpt_unlock_vbus(vbus_ext);
355
356 ldm_release_vbus(vbus);
357
358 for (hba=vbus_ext->hba_list; hba; hba=hba->next)
359 bus_teardown_intr(hba->pcidev, hba->irq_res, hba->irq_handle);
360
361 hpt_free_mem(vbus_ext);
362
363 while ((hba=vbus_ext->hba_list)) {
364 vbus_ext->hba_list = hba->next;
365 kfree(hba->ldm_adapter.him_handle, M_DEVBUF);
366 }
367
368 kfree(vbus_ext, M_DEVBUF);
369 KdPrint(("hpt_shutdown_vbus done"));
370}
371
372static void __hpt_do_tasks(PVBUS_EXT vbus_ext)
373{
374 OSM_TASK *tasks;
375
376 tasks = vbus_ext->tasks;
377 vbus_ext->tasks = 0;
378
379 while (tasks) {
380 OSM_TASK *t = tasks;
381 tasks = t->next;
382 t->next = 0;
383 t->func(vbus_ext->vbus, t->data);
384 }
385}
386
387static void hpt_do_tasks(PVBUS_EXT vbus_ext, int pending)
388{
389 if(vbus_ext){
390 hpt_lock_vbus(vbus_ext);
391 __hpt_do_tasks(vbus_ext);
392 hpt_unlock_vbus(vbus_ext);
393 }
394}
395
396static void hpt_action(struct cam_sim *sim, union ccb *ccb);
397static void hpt_poll(struct cam_sim *sim);
398static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg);
399static void hpt_pci_intr(void *arg);
400
401static __inline POS_CMDEXT cmdext_get(PVBUS_EXT vbus_ext)
402{
403 POS_CMDEXT p = vbus_ext->cmdext_list;
404 if (p)
405 vbus_ext->cmdext_list = p->next;
406 return p;
407}
408
409static __inline void cmdext_put(POS_CMDEXT p)
410{
411 p->next = p->vbus_ext->cmdext_list;
412 p->vbus_ext->cmdext_list = p;
413}
414
415static void hpt_timeout(void *arg)
416{
417 PCOMMAND pCmd = (PCOMMAND)arg;
418 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
419
420 KdPrint(("pCmd %p timeout", pCmd));
421
422 ldm_reset_vbus((PVBUS)ext->vbus_ext->vbus);
423}
424
425static void os_cmddone(PCOMMAND pCmd)
426{
427 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
428 union ccb *ccb = ext->ccb;
429
430 KdPrint(("os_cmddone(%p, %d)", pCmd, pCmd->Result));
431
432 callout_stop(&ccb->ccb_h.timeout_ch);
433
434 switch(pCmd->Result) {
435 case RETURN_SUCCESS:
436 ccb->ccb_h.status = CAM_REQ_CMP;
437 break;
438 case RETURN_BAD_DEVICE:
439 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
440 break;
441 case RETURN_DEVICE_BUSY:
442 ccb->ccb_h.status = CAM_BUSY;
443 break;
444 case RETURN_INVALID_REQUEST:
445 ccb->ccb_h.status = CAM_REQ_INVALID;
446 break;
447 case RETURN_SELECTION_TIMEOUT:
448 ccb->ccb_h.status = CAM_SEL_TIMEOUT;
449 break;
450 case RETURN_RETRY:
451 ccb->ccb_h.status = CAM_BUSY;
452 break;
453 default:
454 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
455 break;
456 }
457
458 if (pCmd->flags.data_in) {
459 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTREAD);
460 }
461 else if (pCmd->flags.data_out) {
462 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_POSTWRITE);
463 }
464
465 bus_dmamap_unload(ext->vbus_ext->io_dmat, ext->dma_map);
466
467 cmdext_put(ext);
468 ldm_free_cmds(pCmd);
469 xpt_done(ccb);
470}
471
472static int os_buildsgl(PCOMMAND pCmd, PSG pSg, int logical)
473{
474 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
475 union ccb *ccb = ext->ccb;
476 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
477 int idx;
478
479 if(logical) {
480 if (ccb->ccb_h.flags & CAM_DATA_PHYS)
481 panic("physical address unsupported");
482
483 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
484 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
485 panic("physical address unsupported");
486
487 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
488 os_set_sgptr(&pSg[idx], (HPT_U8 *)(HPT_UPTR)sgList[idx].ds_addr);
489 pSg[idx].size = sgList[idx].ds_len;
490 pSg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
491 }
492 }
493 else {
494 os_set_sgptr(pSg, (HPT_U8 *)ccb->csio.data_ptr);
495 pSg->size = ccb->csio.dxfer_len;
496 pSg->eot = 1;
497 }
498 return TRUE;
499 }
500
501 /* since we have provided physical sg, nobody will ask us to build physical sg */
502 HPT_ASSERT(0);
503 return FALSE;
504}
505
506static void hpt_io_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
507{
508 PCOMMAND pCmd = (PCOMMAND)arg;
509 POS_CMDEXT ext = (POS_CMDEXT)pCmd->priv;
510 PSG psg = pCmd->psg;
511 int idx;
512
513 HPT_ASSERT(pCmd->flags.physical_sg);
514
515 if (error || nsegs == 0)
516 panic("busdma error");
517
518 HPT_ASSERT(nsegs<=os_max_sg_descriptors);
519
520 for (idx = 0; idx < nsegs; idx++, psg++) {
521 psg->addr.bus = segs[idx].ds_addr;
522 psg->size = segs[idx].ds_len;
523 psg->eot = 0;
524 }
525 psg[-1].eot = 1;
526
527 if (pCmd->flags.data_in) {
528 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREREAD);
529 }
530 else if (pCmd->flags.data_out) {
531 bus_dmamap_sync(ext->vbus_ext->io_dmat, ext->dma_map, BUS_DMASYNC_PREWRITE);
532 }
533
534 callout_reset(&ext->ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
535 ldm_queue_cmd(pCmd);
536}
537
538static void hpt_scsi_io(PVBUS_EXT vbus_ext, union ccb *ccb)
539{
540 PVBUS vbus = (PVBUS)vbus_ext->vbus;
541 PVDEV vd;
542 PCOMMAND pCmd;
543 POS_CMDEXT ext;
544 HPT_U8 *cdb;
545
546 if (ccb->ccb_h.flags & CAM_CDB_POINTER)
547 cdb = ccb->csio.cdb_io.cdb_ptr;
548 else
549 cdb = ccb->csio.cdb_io.cdb_bytes;
550
551 KdPrint(("hpt_scsi_io: ccb %x id %d lun %d cdb %x-%x-%x",
552 ccb,
553 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
554 *(HPT_U32 *)&cdb[0], *(HPT_U32 *)&cdb[4], *(HPT_U32 *)&cdb[8]
555 ));
556
557 /* ccb->ccb_h.path_id is not our bus id - don't check it */
558 if (ccb->ccb_h.target_lun != 0 ||
559 ccb->ccb_h.target_id >= osm_max_targets ||
560 (ccb->ccb_h.flags & CAM_CDB_PHYS))
561 {
562 ccb->ccb_h.status = CAM_TID_INVALID;
563 xpt_done(ccb);
564 return;
565 }
566
567 vd = ldm_find_target(vbus, ccb->ccb_h.target_id);
568
569 if (!vd) {
570 ccb->ccb_h.status = CAM_TID_INVALID;
571 xpt_done(ccb);
572 return;
573 }
574
575 switch (cdb[0]) {
576 case TEST_UNIT_READY:
577 case START_STOP_UNIT:
578 case SYNCHRONIZE_CACHE:
579 ccb->ccb_h.status = CAM_REQ_CMP;
580 break;
581
582 case INQUIRY:
583 {
584 PINQUIRYDATA inquiryData;
585 memset(ccb->csio.data_ptr, 0, ccb->csio.dxfer_len);
586 inquiryData = (PINQUIRYDATA)ccb->csio.data_ptr;
587
588 inquiryData->AdditionalLength = 31;
589 inquiryData->CommandQueue = 1;
590 memcpy(&inquiryData->VendorId, "HPT ", 8);
591 memcpy(&inquiryData->ProductId, "DISK 0_0 ", 16);
592
593 if (vd->target_id / 10) {
594 inquiryData->ProductId[7] = (vd->target_id % 100) / 10 + '0';
595 inquiryData->ProductId[8] = (vd->target_id % 100) % 10 + '0';
596 }
597 else
598 inquiryData->ProductId[7] = (vd->target_id % 100) % 10 + '0';
599
600 memcpy(&inquiryData->ProductRevisionLevel, "4.00", 4);
601
602 ccb->ccb_h.status = CAM_REQ_CMP;
603 }
604 break;
605
606 case READ_CAPACITY:
607 {
608 HPT_U8 *rbuf = ccb->csio.data_ptr;
609 HPT_U32 cap;
610
611 if (vd->capacity>0xfffffffful)
612 cap = 0xfffffffful;
613 else
614 cap = vd->capacity - 1;
615
616 rbuf[0] = (HPT_U8)(cap>>24);
617 rbuf[1] = (HPT_U8)(cap>>16);
618 rbuf[2] = (HPT_U8)(cap>>8);
619 rbuf[3] = (HPT_U8)cap;
620 rbuf[4] = 0;
621 rbuf[5] = 0;
622 rbuf[6] = 2;
623 rbuf[7] = 0;
624
625 ccb->ccb_h.status = CAM_REQ_CMP;
626 break;
627 }
628
629 case SERVICE_ACTION_IN:
630 {
631 HPT_U8 *rbuf = ccb->csio.data_ptr;
632 HPT_U64 cap = vd->capacity - 1;
633
634 rbuf[0] = (HPT_U8)(cap>>56);
635 rbuf[1] = (HPT_U8)(cap>>48);
636 rbuf[2] = (HPT_U8)(cap>>40);
637 rbuf[3] = (HPT_U8)(cap>>32);
638 rbuf[4] = (HPT_U8)(cap>>24);
639 rbuf[5] = (HPT_U8)(cap>>16);
640 rbuf[6] = (HPT_U8)(cap>>8);
641 rbuf[7] = (HPT_U8)cap;
642 rbuf[8] = 0;
643 rbuf[9] = 0;
644 rbuf[10] = 2;
645 rbuf[11] = 0;
646
647 ccb->ccb_h.status = CAM_REQ_CMP;
648 break;
649 }
650
651 case READ_6:
652 case READ_10:
653 case READ_16:
654 case WRITE_6:
655 case WRITE_10:
656 case WRITE_16:
657 case 0x13:
658 case 0x2f:
659 case 0x8f: /* VERIFY_16 */
660 {
661 pCmd = ldm_alloc_cmds(vbus, vd->cmds_per_request);
662 if(!pCmd){
663 KdPrint(("Failed to allocate command!"));
664 ccb->ccb_h.status = CAM_BUSY;
665 break;
666 }
667
668 switch (cdb[0]) {
669 case READ_6:
670 case WRITE_6:
671 case 0x13:
672 pCmd->uCmd.Ide.Lba = ((HPT_U32)cdb[1] << 16) | ((HPT_U32)cdb[2] << 8) | (HPT_U32)cdb[3];
673 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[4];
674 break;
675 case READ_16:
676 case WRITE_16:
677 case 0x8f: /* VERIFY_16 */
678 {
679 HPT_U64 block =
680 ((HPT_U64)cdb[2]<<56) |
681 ((HPT_U64)cdb[3]<<48) |
682 ((HPT_U64)cdb[4]<<40) |
683 ((HPT_U64)cdb[5]<<32) |
684 ((HPT_U64)cdb[6]<<24) |
685 ((HPT_U64)cdb[7]<<16) |
686 ((HPT_U64)cdb[8]<<8) |
687 ((HPT_U64)cdb[9]);
688 pCmd->uCmd.Ide.Lba = block;
689 pCmd->uCmd.Ide.nSectors = (HPT_U16)cdb[13] | ((HPT_U16)cdb[12]<<8);
690 break;
691 }
692
693 default:
694 pCmd->uCmd.Ide.Lba = (HPT_U32)cdb[5] | ((HPT_U32)cdb[4] << 8) | ((HPT_U32)cdb[3] << 16) | ((HPT_U32)cdb[2] << 24);
695 pCmd->uCmd.Ide.nSectors = (HPT_U16) cdb[8] | ((HPT_U16)cdb[7]<<8);
696 break;
697 }
698
699 switch (cdb[0]) {
700 case READ_6:
701 case READ_10:
702 case READ_16:
703 pCmd->flags.data_in = 1;
704 break;
705 case WRITE_6:
706 case WRITE_10:
707 case WRITE_16:
708 pCmd->flags.data_out = 1;
709 break;
710 }
711 pCmd->priv = ext = cmdext_get(vbus_ext);
712 HPT_ASSERT(ext);
713 ext->ccb = ccb;
714 pCmd->target = vd;
715 pCmd->done = os_cmddone;
716 pCmd->buildsgl = os_buildsgl;
717
718 pCmd->psg = ext->psg;
719
720 if (ccb->ccb_h.flags & CAM_SCATTER_VALID) {
721 int idx;
722 bus_dma_segment_t *sgList = (bus_dma_segment_t *)ccb->csio.data_ptr;
723
724 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS)
725 pCmd->flags.physical_sg = 1;
726
727 for (idx = 0; idx < ccb->csio.sglist_cnt; idx++) {
728 pCmd->psg[idx].addr.bus = sgList[idx].ds_addr;
729 pCmd->psg[idx].size = sgList[idx].ds_len;
730 pCmd->psg[idx].eot = (idx==ccb->csio.sglist_cnt-1)? 1 : 0;
731 }
732
733 callout_reset(&ccb->ccb_h.timeout_ch, HPT_OSM_TIMEOUT, hpt_timeout, pCmd);
734 ldm_queue_cmd(pCmd);
735 }
736 else {
737 int error;
738 pCmd->flags.physical_sg = 1;
739 error = bus_dmamap_load(vbus_ext->io_dmat,
740 ext->dma_map,
741 ccb->csio.data_ptr, ccb->csio.dxfer_len,
742 hpt_io_dmamap_callback, pCmd,
743 BUS_DMA_WAITOK
744 );
745 KdPrint(("bus_dmamap_load return %d", error));
746 if (error && error!=EINPROGRESS) {
747 os_printk("bus_dmamap_load error %d", error);
748 cmdext_put(ext);
749 ldm_free_cmds(pCmd);
750 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
751 xpt_done(ccb);
752 }
753 }
754 return;
755 }
756
757 default:
758 ccb->ccb_h.status = CAM_REQ_INVALID;
759 break;
760 }
761
762 xpt_done(ccb);
763 return;
764}
765
766static void hpt_action(struct cam_sim *sim, union ccb *ccb)
767{
768 PVBUS_EXT vbus_ext = (PVBUS_EXT)cam_sim_softc(sim);
769
770 KdPrint(("hpt_action(fn=%d, id=%d)", ccb->ccb_h.func_code, ccb->ccb_h.target_id));
771
772 switch (ccb->ccb_h.func_code) {
773
774 case XPT_SCSI_IO:
775 hpt_lock_vbus(vbus_ext);
776 hpt_scsi_io(vbus_ext, ccb);
777 hpt_unlock_vbus(vbus_ext);
778 return;
779
780 case XPT_RESET_BUS:
781 hpt_lock_vbus(vbus_ext);
782 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
783 hpt_unlock_vbus(vbus_ext);
784 break;
785
786 case XPT_GET_TRAN_SETTINGS:
787 case XPT_SET_TRAN_SETTINGS:
788 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
789 break;
790
791 case XPT_CALC_GEOMETRY:
792 ccb->ccg.heads = 255;
793 ccb->ccg.secs_per_track = 63;
794 ccb->ccg.cylinders = ccb->ccg.volume_size / (ccb->ccg.heads * ccb->ccg.secs_per_track);
795 ccb->ccb_h.status = CAM_REQ_CMP;
796 break;
797
798 case XPT_PATH_INQ:
799 {
800 struct ccb_pathinq *cpi = &ccb->cpi;
801
802 cpi->version_num = 1;
803 cpi->hba_inquiry = PI_SDTR_ABLE;
804 cpi->target_sprt = 0;
805 cpi->hba_misc = PIM_NOBUSRESET;
806 cpi->hba_eng_cnt = 0;
807 cpi->max_target = osm_max_targets;
808 cpi->max_lun = 0;
809 cpi->unit_number = cam_sim_unit(sim);
810 cpi->bus_id = cam_sim_bus(sim);
811 cpi->initiator_id = osm_max_targets;
812 cpi->base_transfer_speed = 3300;
813
814 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
815 strncpy(cpi->hba_vid, "HPT ", HBA_IDLEN);
816 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
817 cpi->transport = XPORT_SPI;
818 cpi->transport_version = 2;
819 cpi->protocol = PROTO_SCSI;
820 cpi->protocol_version = SCSI_REV_2;
821 cpi->maxio = HPT27XX_DFLTPHYS;
822 cpi->ccb_h.status = CAM_REQ_CMP;
823 break;
824 }
825
826 default:
827 ccb->ccb_h.status = CAM_REQ_INVALID;
828 break;
829 }
830
831 xpt_done(ccb);
832 return;
833}
834
835static void hpt_pci_intr(void *arg)
836{
837 PVBUS_EXT vbus_ext = (PVBUS_EXT)arg;
838 hpt_lock_vbus(vbus_ext);
839 ldm_intr((PVBUS)vbus_ext->vbus);
840 hpt_unlock_vbus(vbus_ext);
841}
842
843static void hpt_poll(struct cam_sim *sim)
844{
845 hpt_pci_intr(cam_sim_softc(sim));
846}
847
848static void hpt_async(void * callback_arg, u_int32_t code, struct cam_path * path, void * arg)
849{
850 KdPrint(("hpt_async"));
851}
852
853static int hpt_shutdown(device_t dev)
854{
855 KdPrint(("hpt_shutdown(dev=%p)", dev));
856 return 0;
857}
858
859static int hpt_detach(device_t dev)
860{
861 /* we don't allow the driver to be unloaded. */
862 return EBUSY;
863}
864
865static void hpt_ioctl_done(struct _IOCTL_ARG *arg)
866{
867 arg->ioctl_cmnd = 0;
868 wakeup(arg);
869}
870
871static void __hpt_do_ioctl(PVBUS_EXT vbus_ext, IOCTL_ARG *ioctl_args)
872{
873 ioctl_args->result = -1;
874 ioctl_args->done = hpt_ioctl_done;
875 ioctl_args->ioctl_cmnd = (void *)1;
876
877 hpt_lock_vbus(vbus_ext);
878 ldm_ioctl((PVBUS)vbus_ext->vbus, ioctl_args);
879
880 while (ioctl_args->ioctl_cmnd) {
881 if (hpt_sleep(vbus_ext, ioctl_args, 0, "hptctl", HPT_OSM_TIMEOUT)==0)
882 break;
883 ldm_reset_vbus((PVBUS)vbus_ext->vbus);
884 __hpt_do_tasks(vbus_ext);
885 }
886
887 /* KdPrint(("ioctl %x result %d", ioctl_args->dwIoControlCode, ioctl_args->result)); */
888
889 hpt_unlock_vbus(vbus_ext);
890}
891
892static void hpt_do_ioctl(IOCTL_ARG *ioctl_args)
893{
894 PVBUS vbus;
895 PVBUS_EXT vbus_ext;
896
897 ldm_for_each_vbus(vbus, vbus_ext) {
898 __hpt_do_ioctl(vbus_ext, ioctl_args);
899 if (ioctl_args->result!=HPT_IOCTL_RESULT_WRONG_VBUS)
900 return;
901 }
902}
903
904#define HPT_DO_IOCTL(code, inbuf, insize, outbuf, outsize) ({\
905 IOCTL_ARG arg;\
906 arg.dwIoControlCode = code;\
907 arg.lpInBuffer = inbuf;\
908 arg.lpOutBuffer = outbuf;\
909 arg.nInBufferSize = insize;\
910 arg.nOutBufferSize = outsize;\
911 arg.lpBytesReturned = 0;\
912 hpt_do_ioctl(&arg);\
913 arg.result;\
914})
915
916#define DEVICEID_VALID(id) ((id) && ((HPT_U32)(id)!=0xffffffff))
917
918static int hpt_get_logical_devices(DEVICEID * pIds, int nMaxCount)
919{
920 int i;
921 HPT_U32 count = nMaxCount-1;
922
923 if (HPT_DO_IOCTL(HPT_IOCTL_GET_LOGICAL_DEVICES,
924 &count, sizeof(HPT_U32), pIds, sizeof(DEVICEID)*nMaxCount))
925 return -1;
926
927 nMaxCount = (int)pIds[0];
928 for (i=0; i<nMaxCount; i++) pIds[i] = pIds[i+1];
929 return nMaxCount;
930}
931
932static int hpt_get_device_info_v3(DEVICEID id, PLOGICAL_DEVICE_INFO_V3 pInfo)
933{
934 return HPT_DO_IOCTL(HPT_IOCTL_GET_DEVICE_INFO_V3,
935 &id, sizeof(DEVICEID), pInfo, sizeof(LOGICAL_DEVICE_INFO_V3));
936}
937
938/* not belong to this file logically, but we want to use ioctl interface */
939static int __hpt_stop_tasks(PVBUS_EXT vbus_ext, DEVICEID id)
940{
941 LOGICAL_DEVICE_INFO_V3 devinfo;
942 int i, result;
943 DEVICEID param[2] = { id, 0 };
944
945 if (hpt_get_device_info_v3(id, &devinfo))
946 return -1;
947
948 if (devinfo.Type!=LDT_ARRAY)
949 return -1;
950
951 if (devinfo.u.array.Flags & ARRAY_FLAG_REBUILDING)
952 param[1] = AS_REBUILD_ABORT;
953 else if (devinfo.u.array.Flags & ARRAY_FLAG_VERIFYING)
954 param[1] = AS_VERIFY_ABORT;
955 else if (devinfo.u.array.Flags & ARRAY_FLAG_INITIALIZING)
956 param[1] = AS_INITIALIZE_ABORT;
957 else if (devinfo.u.array.Flags & ARRAY_FLAG_TRANSFORMING)
958 param[1] = AS_TRANSFORM_ABORT;
959 else
960 return -1;
961
962 KdPrint(("SET_ARRAY_STATE(%x, %d)", param[0], param[1]));
963 result = HPT_DO_IOCTL(HPT_IOCTL_SET_ARRAY_STATE,
964 param, sizeof(param), 0, 0);
965
966 for (i=0; i<devinfo.u.array.nDisk; i++)
967 if (DEVICEID_VALID(devinfo.u.array.Members[i]))
968 __hpt_stop_tasks(vbus_ext, devinfo.u.array.Members[i]);
969
970 return result;
971}
972
973static void hpt_stop_tasks(PVBUS_EXT vbus_ext)
974{
975 DEVICEID ids[32];
976 int i, count;
977
978 count = hpt_get_logical_devices((DEVICEID *)&ids, sizeof(ids)/sizeof(ids[0]));
979
980 for (i=0; i<count; i++)
981 __hpt_stop_tasks(vbus_ext, ids[i]);
982}
983
984static d_open_t hpt_open;
985static d_close_t hpt_close;
986static d_ioctl_t hpt_ioctl;
987static void hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
988static int hpt_rescan_bus(void);
989
990static struct dev_ops hpt_ops = {
991 { driver_name, 0, 0 },
992 .d_open = hpt_open,
993 .d_close = hpt_close,
994 .d_ioctl = hpt_ioctl,
995};
996
997static struct intr_config_hook hpt_ich;
998
999/*
1000 * hpt_final_init will be called after all hpt_attach.
1001 */
1002static void hpt_final_init(void *dummy)
1003{
1004 int i;
1005 PVBUS_EXT vbus_ext;
1006 PVBUS vbus;
1007 PHBA hba;
1008
1009 /* Clear the config hook */
1010 config_intrhook_disestablish(&hpt_ich);
1011
1012 /* allocate memory */
1013 i = 0;
1014 ldm_for_each_vbus(vbus, vbus_ext) {
1015 if (hpt_alloc_mem(vbus_ext)) {
1016 os_printk("out of memory");
1017 return;
1018 }
1019 i++;
1020 }
1021
1022 if (!i) {
1023 os_printk("no controller detected.");
1024 return;
1025 }
1026
1027 /* initializing hardware */
1028 ldm_for_each_vbus(vbus, vbus_ext) {
1029 /* make timer available here */
1030 callout_init(&vbus_ext->timer);
1031 if (hpt_init_vbus(vbus_ext)) {
1032 os_printk("fail to initialize hardware");
1033 break; /* FIXME */
1034 }
1035 }
1036
1037 /* register CAM interface */
1038 ldm_for_each_vbus(vbus, vbus_ext) {
1039 struct cam_devq *devq;
1040 struct ccb_setasync ccb;
1041
1042 lockinit(&vbus_ext->lock, "hptsleeplock", 0, LK_CANRECURSE);
1043 if (bus_dma_tag_create(NULL,/* parent */
1044 4, /* alignment */
1045 BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
1046 BUS_SPACE_MAXADDR, /* lowaddr */
1047 BUS_SPACE_MAXADDR, /* highaddr */
1048 NULL, NULL, /* filter, filterarg */
1049 PAGE_SIZE * (os_max_sg_descriptors-1), /* maxsize */
1050 os_max_sg_descriptors, /* nsegments */
1051 0x10000, /* maxsegsize */
1052 BUS_DMA_WAITOK, /* flags */
1053 &vbus_ext->io_dmat /* tag */))
1054 {
1055 return ;
1056 }
1057
1058 for (i=0; i<os_max_queue_comm; i++) {
1059 POS_CMDEXT ext = (POS_CMDEXT)kmalloc(sizeof(OS_CMDEXT), M_DEVBUF, M_WAITOK);
1060 if (!ext) {
1061 os_printk("Can't alloc cmdext(%d)", i);
1062 return ;
1063 }
1064 ext->vbus_ext = vbus_ext;
1065 ext->next = vbus_ext->cmdext_list;
1066 vbus_ext->cmdext_list = ext;
1067
1068 if (bus_dmamap_create(vbus_ext->io_dmat, 0, &ext->dma_map)) {
1069 os_printk("Can't create dma map(%d)", i);
1070 return ;
1071 }
1072 }
1073
1074 if ((devq = cam_simq_alloc(os_max_queue_comm)) == NULL) {
1075 os_printk("cam_simq_alloc failed");
1076 return ;
1077 }
1078
1079 vbus_ext->sim = cam_sim_alloc(hpt_action, hpt_poll, driver_name,
1080 vbus_ext, 0, &sim_mplock, os_max_queue_comm, /*tagged*/8, devq);
1081
1082 if (!vbus_ext->sim) {
1083 os_printk("cam_sim_alloc failed");
1084 cam_simq_release(devq);
1085 return ;
1086 }
1087 cam_simq_release(devq);
1088
1089 if (xpt_bus_register(vbus_ext->sim, 0) != CAM_SUCCESS) {
1090 os_printk("xpt_bus_register failed");
1091 cam_sim_free(vbus_ext->sim);
1092 vbus_ext->sim = NULL;
1093 return ;
1094 }
1095
1096 if (xpt_create_path(&vbus_ext->path, /*periph */ NULL,
1097 cam_sim_path(vbus_ext->sim), CAM_TARGET_WILDCARD,
1098 CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1099 {
1100 os_printk("xpt_create_path failed");
1101 xpt_bus_deregister(cam_sim_path(vbus_ext->sim));
1102 cam_sim_free(vbus_ext->sim);
1103 vbus_ext->sim = NULL;
1104 return ;
1105 }
1106
1107 xpt_setup_ccb(&ccb.ccb_h, vbus_ext->path, /*priority*/5);
1108 ccb.ccb_h.func_code = XPT_SASYNC_CB;
1109 ccb.event_enable = AC_LOST_DEVICE;
1110 ccb.callback = hpt_async;
1111 ccb.callback_arg = vbus_ext;
1112 xpt_action((union ccb *)&ccb);
1113
1114 for (hba = vbus_ext->hba_list; hba; hba = hba->next) {
1115 int rid = 0;
1116 if ((hba->irq_res = bus_alloc_resource(hba->pcidev,
1117 SYS_RES_IRQ, &rid, 0, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL)
1118 {
1119 os_printk("can't allocate interrupt");
1120 return ;
1121 }
1122
1123 if (bus_setup_intr(hba->pcidev, hba->irq_res, 0,
1124 hpt_pci_intr, vbus_ext, &hba->irq_handle, NULL))
1125 {
1126 os_printk("can't set up interrupt");
1127 return ;
1128 }
1129 hba->ldm_adapter.him->intr_control(hba->ldm_adapter.him_handle, HPT_TRUE);
1130
1131 }
1132
1133 vbus_ext->shutdown_eh = EVENTHANDLER_REGISTER(shutdown_final,
1134 hpt_shutdown_vbus, vbus_ext, SHUTDOWN_PRI_DEFAULT);
1135 if (!vbus_ext->shutdown_eh)
1136 os_printk("Shutdown event registration failed");
1137 }
1138
1139 ldm_for_each_vbus(vbus, vbus_ext) {
1140 TASK_INIT(&vbus_ext->worker, 0, (task_fn_t *)hpt_do_tasks, vbus_ext);
1141 if (vbus_ext->tasks)
1142 TASK_ENQUEUE(&vbus_ext->worker);
1143 }
1144
1145 make_dev(&hpt_ops, DRIVER_MINOR, UID_ROOT, GID_OPERATOR,
1146 S_IRUSR | S_IWUSR, driver_name);
1147}
1148
1149#if defined(KLD_MODULE) && (__FreeBSD_version >= 503000)
1150
1151typedef struct driverlink *driverlink_t;
1152struct driverlink {
1153 kobj_class_t driver;
1154 TAILQ_ENTRY(driverlink) link; /* list of drivers in devclass */
1155};
1156
1157typedef TAILQ_HEAD(driver_list, driverlink) driver_list_t;
1158
1159struct devclass {
1160 TAILQ_ENTRY(devclass) link;
1161 devclass_t parent; /* parent in devclass hierarchy */
1162 driver_list_t drivers; /* bus devclasses store drivers for bus */
1163 char *name;
1164 device_t *devices; /* array of devices indexed by unit */
1165 int maxunit; /* size of devices array */
1166};
1167
1168static void override_kernel_driver(void)
1169{
1170 driverlink_t dl, dlfirst;
1171 driver_t *tmpdriver;
1172 devclass_t dc = devclass_find("pci");
1173
1174 if (dc){
1175 dlfirst = TAILQ_FIRST(&dc->drivers);
1176 for (dl = dlfirst; dl; dl = TAILQ_NEXT(dl, link)) {
1177 if(strcmp(dl->driver->name, driver_name) == 0) {
1178 tmpdriver=dl->driver;
1179 dl->driver=dlfirst->driver;
1180 dlfirst->driver=tmpdriver;
1181 break;
1182 }
1183 }
1184 }
1185}
1186
1187#else
1188#define override_kernel_driver()
1189#endif
1190
1191static void hpt_init(void *dummy)
1192{
1193 os_printk("%s %s", driver_name_long, driver_ver);
1194
1195 override_kernel_driver();
1196 init_config();
1197
1198 hpt_ich.ich_func = hpt_final_init;
1199 hpt_ich.ich_arg = NULL;
1200 if (config_intrhook_establish(&hpt_ich) != 0) {
1201 kprintf("%s: cannot establish configuration hook\n",
1202 driver_name_long);
1203 }
1204
1205}
1206SYSINIT(hptinit, SI_SUB_CONFIGURE, SI_ORDER_FIRST, hpt_init, NULL);
1207
1208/*
1209 * CAM driver interface
1210 */
1211static device_method_t driver_methods[] = {
1212 /* Device interface */
1213 DEVMETHOD(device_probe, hpt_probe),
1214 DEVMETHOD(device_attach, hpt_attach),
1215 DEVMETHOD(device_detach, hpt_detach),
1216 DEVMETHOD(device_shutdown, hpt_shutdown),
1217 { 0, 0 }
1218};
1219
1220static driver_t hpt_pci_driver = {
1221 driver_name,
1222 driver_methods,
1223 sizeof(HBA)
1224};
1225
1226static devclass_t hpt_devclass;
1227
1228#ifndef TARGETNAME
1229#error "no TARGETNAME found"
1230#endif
1231
1232/* use this to make TARGETNAME be expanded */
1233#define __DRIVER_MODULE(p1, p2, p3, p4, p5, p6) DRIVER_MODULE(p1, p2, p3, p4, p5, p6)
1234#define __MODULE_VERSION(p1, p2) MODULE_VERSION(p1, p2)
1235#define __MODULE_DEPEND(p1, p2, p3, p4, p5) MODULE_DEPEND(p1, p2, p3, p4, p5)
0978195f 1236__DRIVER_MODULE(TARGETNAME, pci, hpt_pci_driver, hpt_devclass, NULL, NULL);
0f74dae5
SW		 1237__MODULE_VERSION(TARGETNAME, 1);
1238__MODULE_DEPEND(TARGETNAME, cam, 1, 1, 1);
1239
1240typedef struct cdev * ioctl_dev_t;
1241
1242typedef struct thread * ioctl_thread_t;
1243
1244static int hpt_open(struct dev_open_args *ap)
1245{
1246 return 0;
1247}
1248
1249static int hpt_close(struct dev_close_args *ap)
1250{
1251 return 0;
1252}
1253
1254static int hpt_ioctl(struct dev_ioctl_args *ap)
1255{
1256 u_long cmd = ap->a_cmd;
1257 caddr_t data = ap->a_data;
1258 PHPT_IOCTL_PARAM piop=(PHPT_IOCTL_PARAM)data;
1259 IOCTL_ARG ioctl_args;
1260 HPT_U32 bytesReturned;
1261
1262 switch (cmd){
1263 case HPT_DO_IOCONTROL:
1264 {
1265 if (piop->Magic == HPT_IOCTL_MAGIC || piop->Magic == HPT_IOCTL_MAGIC32) {
1266 KdPrint(("ioctl=%x in=%p len=%d out=%p len=%d\n",
1267 piop->dwIoControlCode,
1268 piop->lpInBuffer,
1269 piop->nInBufferSize,
1270 piop->lpOutBuffer,
1271 piop->nOutBufferSize));
1272
1273 memset(&ioctl_args, 0, sizeof(ioctl_args));
1274
1275 ioctl_args.dwIoControlCode = piop->dwIoControlCode;
1276 ioctl_args.nInBufferSize = piop->nInBufferSize;
1277 ioctl_args.nOutBufferSize = piop->nOutBufferSize;
1278 ioctl_args.lpBytesReturned = &bytesReturned;
1279
1280 if (ioctl_args.nInBufferSize) {
1281 ioctl_args.lpInBuffer = kmalloc(ioctl_args.nInBufferSize, M_DEVBUF, M_WAITOK);
1282 if (!ioctl_args.lpInBuffer)
1283 goto invalid;
1284 if (copyin((void*)piop->lpInBuffer,
1285 ioctl_args.lpInBuffer, piop->nInBufferSize))
1286 goto invalid;
1287 }
1288
1289 if (ioctl_args.nOutBufferSize) {
1290 ioctl_args.lpOutBuffer = kmalloc(ioctl_args.nOutBufferSize, M_DEVBUF, M_WAITOK);
1291 if (!ioctl_args.lpOutBuffer)
1292 goto invalid;
1293 }
1294
1295 get_mplock();
1296
1297 hpt_do_ioctl(&ioctl_args);
1298
1299 rel_mplock();
1300
1301 if (ioctl_args.result==HPT_IOCTL_RESULT_OK) {
1302 if (piop->nOutBufferSize) {
1303 if (copyout(ioctl_args.lpOutBuffer,
1304 (void*)piop->lpOutBuffer, piop->nOutBufferSize))
1305 goto invalid;
1306 }
1307 if (piop->lpBytesReturned) {
1308 if (copyout(&bytesReturned,
1309 (void*)piop->lpBytesReturned, sizeof(HPT_U32)))
1310 goto invalid;
1311 }
1312 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1313 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1314 return 0;
1315 }
1316invalid:
1317 if (ioctl_args.lpInBuffer) kfree(ioctl_args.lpInBuffer, M_DEVBUF);
1318 if (ioctl_args.lpOutBuffer) kfree(ioctl_args.lpOutBuffer, M_DEVBUF);
1319 return EFAULT;
1320 }
1321 return EFAULT;
1322 }
1323
1324 case HPT_SCAN_BUS:
1325 {
1326 return hpt_rescan_bus();
1327 }
1328 default:
1329 KdPrint(("invalid command!"));
1330 return EFAULT;
1331 }
1332
1333}
1334
1335static int hpt_rescan_bus(void)
1336{
1337 struct cam_path *path;
1338 union ccb *ccb;
1339 PVBUS vbus;
1340 PVBUS_EXT vbus_ext;
1341
1342 get_mplock();
1343
1344 ldm_for_each_vbus(vbus, vbus_ext) {
1345 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vbus_ext->sim),
1346 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
1347 return(EIO);
1348 if ((ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK)) == NULL)
1349 return(ENOMEM);
1350 bzero(ccb, sizeof(union ccb));
1351 xpt_setup_ccb(&ccb->ccb_h, path, 5);
1352 ccb->ccb_h.func_code = XPT_SCAN_BUS;
1353 ccb->ccb_h.cbfcnp = hpt_bus_scan_cb;
1354 ccb->crcn.flags = CAM_FLAG_NONE;
1355 xpt_action(ccb);
1356 }
1357
1358 rel_mplock();
1359
1360 return(0);
1361}
1362
1363static void hpt_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
1364{
1365 if (ccb->ccb_h.status != CAM_REQ_CMP)
1366 KdPrint(("cam_scan_callback: failure status = %x",ccb->ccb_h.status));
1367 else
1368 KdPrint(("Scan bus successfully!"));
1369
1370 xpt_free_path(ccb->ccb_h.path);
1371 kfree(ccb, M_TEMP);
1372 return;
1373}
DragonFly Project GIT Source repo