1/*-
2 * Copyright (c) 2002 Adaptec, 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
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30/*
31 * CAM front-end for communicating with non-DASD devices
32 */
33
34#include "opt_aac.h"
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/kernel.h>
39#include <sys/sysctl.h>
40#include <sys/lock.h>
41#include <sys/malloc.h>
42#include <sys/module.h>
43#include <sys/mutex.h>
44
45#include <cam/cam.h>
46#include <cam/cam_ccb.h>
47#include <cam/cam_debug.h>
48#include <cam/cam_periph.h>
49#include <cam/cam_sim.h>
50#include <cam/cam_xpt_sim.h>
51#include <cam/scsi/scsi_all.h>
52#include <cam/scsi/scsi_message.h>
53
54#include <sys/bus.h>
55#include <sys/conf.h>
56#include <sys/disk.h>
57
58#include <machine/md_var.h>
59#include <machine/bus.h>
60#include <sys/rman.h>
61
62#include <vm/vm.h>
63#include <vm/pmap.h>
64
65#include <dev/aac/aacreg.h>
66#include <sys/aac_ioctl.h>
67#include <dev/aac/aacvar.h>
68
69struct aac_cam {
70	device_t		dev;
71	struct aac_sim		*inf;
72	struct cam_sim		*sim;
73	struct cam_path		*path;
74};
75
76static int aac_cam_probe(device_t dev);
77static int aac_cam_attach(device_t dev);
78static int aac_cam_detach(device_t dev);
79static void aac_cam_action(struct cam_sim *, union ccb *);
80static void aac_cam_poll(struct cam_sim *);
81static void aac_cam_complete(struct aac_command *);
82static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel,
83    uint32_t target_id);
84
85static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
86static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
87static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
88
89static devclass_t	aac_pass_devclass;
90
91static device_method_t	aac_pass_methods[] = {
92	DEVMETHOD(device_probe,		aac_cam_probe),
93	DEVMETHOD(device_attach,	aac_cam_attach),
94	DEVMETHOD(device_detach,	aac_cam_detach),
95	DEVMETHOD_END
96};
97
98static driver_t	aac_pass_driver = {
99	"aacp",
100	aac_pass_methods,
101	sizeof(struct aac_cam)
102};
103
104DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, NULL, NULL);
105MODULE_DEPEND(aacp, cam, 1, 1, 1);
106
107static MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
108
109static void
110aac_cam_rescan(struct aac_softc *sc, uint32_t channel, uint32_t target_id)
111{
112	union ccb *ccb;
113	struct aac_sim *sim;
114	struct aac_cam *camsc;
115
116	if (target_id == AAC_CAM_TARGET_WILDCARD)
117		target_id = CAM_TARGET_WILDCARD;
118
119	TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) {
120		camsc = sim->aac_cam;
121		if (camsc == NULL || camsc->inf == NULL ||
122		    camsc->inf->BusNumber != channel)
123			continue;
124
125		ccb = xpt_alloc_ccb_nowait();
126		if (ccb == NULL) {
127			device_printf(sc->aac_dev,
128			    "Cannot allocate ccb for bus rescan.\n");
129			return;
130		}
131
132		if (xpt_create_path(&ccb->ccb_h.path, NULL,
133		    cam_sim_path(camsc->sim),
134		    target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
135			xpt_free_ccb(ccb);
136			device_printf(sc->aac_dev,
137			    "Cannot create path for bus rescan.\n");
138			return;
139		}
140		xpt_rescan(ccb);
141		break;
142	}
143}
144
145
146static void
147aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
148{
149	union ccb *ccb;
150	struct aac_cam *camsc;
151
152	switch (event->ev_type) {
153	case AAC_EVENT_CMFREE:
154		ccb = arg;
155		camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
156		free(event, M_AACCAM);
157		xpt_release_simq(camsc->sim, 1);
158		ccb->ccb_h.status = CAM_REQUEUE_REQ;
159		xpt_done(ccb);
160		break;
161	default:
162		device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
163		    event->ev_type);
164		break;
165	}
166}
167
168static int
169aac_cam_probe(device_t dev)
170{
171	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
172
173	return (0);
174}
175
176static int
177aac_cam_detach(device_t dev)
178{
179	struct aac_softc *sc;
180	struct aac_cam *camsc;
181	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
182
183	camsc = (struct aac_cam *)device_get_softc(dev);
184	sc = camsc->inf->aac_sc;
185	camsc->inf->aac_cam = NULL;
186
187	mtx_lock(&sc->aac_io_lock);
188
189	xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
190	xpt_free_path(camsc->path);
191	xpt_bus_deregister(cam_sim_path(camsc->sim));
192	cam_sim_free(camsc->sim, /*free_devq*/TRUE);
193
194	sc->cam_rescan_cb = NULL;
195
196	mtx_unlock(&sc->aac_io_lock);
197
198	return (0);
199}
200
201/*
202 * Register the driver as a CAM SIM
203 */
204static int
205aac_cam_attach(device_t dev)
206{
207	struct cam_devq *devq;
208	struct cam_sim *sim;
209	struct cam_path *path;
210	struct aac_cam *camsc;
211	struct aac_sim *inf;
212
213	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
214
215	camsc = (struct aac_cam *)device_get_softc(dev);
216	inf = (struct aac_sim *)device_get_ivars(dev);
217	camsc->inf = inf;
218	camsc->inf->aac_cam = camsc;
219
220	devq = cam_simq_alloc(inf->TargetsPerBus);
221	if (devq == NULL)
222		return (EIO);
223
224	sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
225	    device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
226	if (sim == NULL) {
227		cam_simq_free(devq);
228		return (EIO);
229	}
230
231	/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
232	mtx_lock(&inf->aac_sc->aac_io_lock);
233	if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
234		cam_sim_free(sim, TRUE);
235		mtx_unlock(&inf->aac_sc->aac_io_lock);
236		return (EIO);
237	}
238
239	if (xpt_create_path(&path, NULL, cam_sim_path(sim),
240	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
241		xpt_bus_deregister(cam_sim_path(sim));
242		cam_sim_free(sim, TRUE);
243		mtx_unlock(&inf->aac_sc->aac_io_lock);
244		return (EIO);
245	}
246	inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
247	mtx_unlock(&inf->aac_sc->aac_io_lock);
248
249	camsc->sim = sim;
250	camsc->path = path;
251
252	return (0);
253}
254
255static void
256aac_cam_action(struct cam_sim *sim, union ccb *ccb)
257{
258	struct	aac_cam *camsc;
259	struct	aac_softc *sc;
260	struct	aac_srb *srb;
261	struct	aac_fib *fib;
262	struct	aac_command *cm;
263
264	camsc = (struct aac_cam *)cam_sim_softc(sim);
265	sc = camsc->inf->aac_sc;
266	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
267
268	/* Synchronous ops, and ops that don't require communication with the
269	 * controller */
270	switch(ccb->ccb_h.func_code) {
271	case XPT_SCSI_IO:
272	case XPT_RESET_DEV:
273		/* These are handled down below */
274		break;
275	case XPT_CALC_GEOMETRY:
276	{
277		struct ccb_calc_geometry *ccg;
278		u_int32_t size_mb;
279		u_int32_t secs_per_cylinder;
280
281		ccg = &ccb->ccg;
282		size_mb = ccg->volume_size /
283		    ((1024L * 1024L) / ccg->block_size);
284		if (size_mb >= (2 * 1024)) {		/* 2GB */
285			ccg->heads = 255;
286			ccg->secs_per_track = 63;
287		} else if (size_mb >= (1 * 1024)) {	/* 1GB */
288			ccg->heads = 128;
289			ccg->secs_per_track = 32;
290		} else {
291			ccg->heads = 64;
292			ccg->secs_per_track = 32;
293		}
294		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
295		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
296
297		ccb->ccb_h.status = CAM_REQ_CMP;
298		xpt_done(ccb);
299		return;
300	}
301	case XPT_PATH_INQ:
302	{
303		struct ccb_pathinq *cpi = &ccb->cpi;
304
305		cpi->version_num = 1;
306		cpi->hba_inquiry = PI_WIDE_16;
307		cpi->target_sprt = 0;
308
309		/*
310		 * Resetting via the passthrough or parallel bus scan
311		 * causes problems.
312		 */
313		cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN;
314		cpi->hba_eng_cnt = 0;
315		cpi->max_target = camsc->inf->TargetsPerBus;
316		cpi->max_lun = 8;	/* Per the controller spec */
317		cpi->initiator_id = camsc->inf->InitiatorBusId;
318		cpi->bus_id = camsc->inf->BusNumber;
319		cpi->base_transfer_speed = 3300;
320		strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
321		strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
322		strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
323		cpi->unit_number = cam_sim_unit(sim);
324		cpi->transport = XPORT_SPI;
325		cpi->transport_version = 2;
326		cpi->protocol = PROTO_SCSI;
327		cpi->protocol_version = SCSI_REV_2;
328		ccb->ccb_h.status = CAM_REQ_CMP;
329		xpt_done(ccb);
330		return;
331	}
332	case XPT_GET_TRAN_SETTINGS:
333	{
334		struct ccb_trans_settings_scsi *scsi =
335			&ccb->cts.proto_specific.scsi;
336		struct ccb_trans_settings_spi *spi =
337			&ccb->cts.xport_specific.spi;
338		ccb->cts.protocol = PROTO_SCSI;
339		ccb->cts.protocol_version = SCSI_REV_2;
340		ccb->cts.transport = XPORT_SPI;
341		ccb->cts.transport_version = 2;
342		if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
343			scsi->valid = CTS_SCSI_VALID_TQ;
344			spi->valid |= CTS_SPI_VALID_DISC;
345		} else {
346			scsi->valid = 0;
347		}
348		ccb->ccb_h.status = CAM_REQ_CMP;
349		xpt_done(ccb);
350		return;
351	}
352	case XPT_SET_TRAN_SETTINGS:
353		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
354		xpt_done(ccb);
355		return;
356	case XPT_RESET_BUS:
357		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
358			ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
359		} else {
360			ccb->ccb_h.status = CAM_REQ_CMP;
361		}
362		xpt_done(ccb);
363		return;
364	case XPT_ABORT:
365		ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
366		xpt_done(ccb);
367		return;
368	case XPT_TERM_IO:
369		ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
370		xpt_done(ccb);
371		return;
372	default:
373		device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
374		    ccb->ccb_h.func_code);
375		ccb->ccb_h.status = CAM_PROVIDE_FAIL;
376		xpt_done(ccb);
377		return;
378	}
379
380	/* Async ops that require communcation with the controller */
381
382	if (aac_alloc_command(sc, &cm)) {
383		struct aac_event *event;
384
385		xpt_freeze_simq(sim, 1);
386		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
387		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
388		event = malloc(sizeof(struct aac_event), M_AACCAM,
389		    M_NOWAIT | M_ZERO);
390		if (event == NULL) {
391			device_printf(sc->aac_dev,
392			    "Warning, out of memory for event\n");
393			return;
394		}
395		event->ev_callback = aac_cam_event;
396		event->ev_arg = ccb;
397		event->ev_type = AAC_EVENT_CMFREE;
398		aac_add_event(sc, event);
399		return;
400	}
401
402	fib = cm->cm_fib;
403	srb = (struct aac_srb *)&fib->data[0];
404	cm->cm_datalen = 0;
405
406	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
407	case CAM_DIR_IN:
408		srb->flags = AAC_SRB_FLAGS_DATA_IN;
409		cm->cm_flags |= AAC_CMD_DATAIN;
410		break;
411	case CAM_DIR_OUT:
412		srb->flags = AAC_SRB_FLAGS_DATA_OUT;
413		cm->cm_flags |= AAC_CMD_DATAOUT;
414		break;
415	case CAM_DIR_NONE:
416		srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
417		break;
418	default:
419		srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
420		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
421		break;
422	}
423
424	switch(ccb->ccb_h.func_code) {
425	case XPT_SCSI_IO:
426	{
427		struct ccb_scsiio *csio = &ccb->csio;
428
429		srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
430
431		/*
432		 * Copy the CDB into the SRB.  It's only 6-16 bytes,
433		 * so a copy is not too expensive.
434		 */
435		srb->cdb_len = csio->cdb_len;
436		if (ccb->ccb_h.flags & CAM_CDB_POINTER)
437			bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
438			    srb->cdb_len);
439		else
440			bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
441			    srb->cdb_len);
442
443		/* Set command */
444		fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
445			ScsiPortCommandU64 : ScsiPortCommand;
446
447		/* Map the s/g list. XXX 32bit addresses only! */
448		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
449			switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
450			case CAM_DATA_VADDR:
451				srb->data_len = csio->dxfer_len;
452				/*
453				 * Arrange things so that the S/G
454				 * map will get set up automagically
455				 */
456				cm->cm_data = (void *)csio->data_ptr;
457				cm->cm_datalen = csio->dxfer_len;
458				cm->cm_sgtable = &srb->sg_map;
459				break;
460			case CAM_DATA_PADDR:
461				/* Send a 32bit command */
462				fib->Header.Command = ScsiPortCommand;
463				srb->sg_map.SgCount = 1;
464				srb->sg_map.SgEntry[0].SgAddress =
465				    (uint32_t)(uintptr_t)csio->data_ptr;
466				srb->sg_map.SgEntry[0].SgByteCount =
467				    csio->dxfer_len;
468				srb->data_len = csio->dxfer_len;
469				break;
470			default:
471				/* XXX Need to handle multiple s/g elements */
472				panic("aac_cam: multiple s/g elements");
473			}
474		} else {
475			srb->sg_map.SgCount = 0;
476			srb->sg_map.SgEntry[0].SgByteCount = 0;
477			srb->data_len = 0;
478		}
479
480		break;
481	}
482	case XPT_RESET_DEV:
483		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
484			srb->function = AAC_SRB_FUNC_RESET_DEVICE;
485			break;
486		} else {
487			ccb->ccb_h.status = CAM_REQ_CMP;
488			xpt_done(ccb);
489			return;
490		}
491	default:
492		break;
493	}
494
495	srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
496	srb->target = ccb->ccb_h.target_id;
497	srb->lun = ccb->ccb_h.target_lun;
498	srb->timeout = ccb->ccb_h.timeout;	/* XXX */
499	srb->retry_limit = 0;
500
501	cm->cm_complete = aac_cam_complete;
502	cm->cm_private = ccb;
503	cm->cm_timestamp = time_uptime;
504
505	fib->Header.XferState =
506	    AAC_FIBSTATE_HOSTOWNED	|
507	    AAC_FIBSTATE_INITIALISED	|
508	    AAC_FIBSTATE_FROMHOST	|
509	    AAC_FIBSTATE_REXPECTED	|
510	    AAC_FIBSTATE_NORM;
511	fib->Header.Size = sizeof(struct aac_fib_header) +
512	    sizeof(struct aac_srb);
513
514	aac_enqueue_ready(cm);
515	aac_startio(cm->cm_sc);
516}
517
518static void
519aac_cam_poll(struct cam_sim *sim)
520{
521	/*
522	 * Pinging the interrupt routine isn't very safe, nor is it
523	 * really necessary.  Do nothing.
524	 */
525}
526
527static void
528aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb)
529{
530	struct scsi_inquiry_data *inq;
531	uint8_t *data;
532	uint8_t device, qual;
533
534	/* If this is an inquiry command, fake things out */
535	if (ccb->ccb_h.flags & CAM_CDB_POINTER)
536		data = ccb->csio.cdb_io.cdb_ptr;
537	else
538		data = ccb->csio.cdb_io.cdb_bytes;
539
540	if (data[0] != INQUIRY)
541		return;
542
543	if (ccb->ccb_h.status == CAM_REQ_CMP) {
544		inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
545		device = SID_TYPE(inq);
546		qual = SID_QUAL(inq);
547
548		/*
549		 * We want DASD and PROC devices to only be
550		 * visible through the pass device.
551		 */
552		if (((device == T_DIRECT) ||
553		    (device == T_PROCESSOR) ||
554		    (sc->flags & AAC_FLAGS_CAM_PASSONLY))) {
555			/*
556			 * Some aac(4) adapters will always report that a direct
557			 * access device is offline in response to a INQUIRY
558			 * command that does not retreive vital product data.
559			 * Force the qualifier to connected so that upper layers
560			 * correctly recognize that a disk is present.
561			 */
562			if ((data[1] & SI_EVPD) == 0 && device == T_DIRECT &&
563			    qual == SID_QUAL_LU_OFFLINE)
564				qual = SID_QUAL_LU_CONNECTED;
565			ccb->csio.data_ptr[0] = (qual << 5) | T_NODEVICE;
566		}
567	} else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
568		ccb->ccb_h.target_lun != 0) {
569		/* fix for INQUIRYs on Lun>0 */
570		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
571	}
572}
573
574static void
575aac_cam_complete(struct aac_command *cm)
576{
577	union	ccb *ccb;
578	struct 	aac_srb_response *srbr;
579	struct	aac_softc *sc;
580	int	sense_returned;
581
582	sc = cm->cm_sc;
583	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
584	ccb = cm->cm_private;
585	srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
586
587	if (srbr->fib_status != 0) {
588		device_printf(sc->aac_dev, "Passthru FIB failed!\n");
589		ccb->ccb_h.status = CAM_REQ_ABORTED;
590	} else {
591		/*
592		 * The SRB error codes just happen to match the CAM error
593		 * codes.  How convienient!
594		 */
595		ccb->ccb_h.status = srbr->srb_status;
596
597		/* Take care of SCSI_IO ops. */
598		if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
599			ccb->csio.scsi_status = srbr->scsi_status;
600
601			/* Take care of autosense */
602			if (srbr->sense_len) {
603				sense_returned = srbr->sense_len;
604				if (sense_returned < ccb->csio.sense_len)
605					ccb->csio.sense_resid =
606					   ccb->csio.sense_len -
607					   sense_returned;
608					else
609					    ccb->csio.sense_resid = 0;
610				bzero(&ccb->csio.sense_data,
611				    sizeof(struct scsi_sense_data));
612				bcopy(&srbr->sense[0], &ccb->csio.sense_data,
613				    min(ccb->csio.sense_len, sense_returned));
614				ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
615				// scsi_sense_print(&ccb->csio);
616			}
617
618			aac_cam_fix_inquiry(sc, ccb);
619		}
620	}
621
622	aac_release_command(cm);
623	xpt_done(ccb);
624}
625
626static u_int32_t
627aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
628{
629	struct aac_fib *fib;
630	struct aac_softc *sc;
631	struct aac_cam *camsc;
632	struct aac_vmioctl *vmi;
633	struct aac_resetbus *rbc;
634	int e;
635
636	camsc = (struct aac_cam *)cam_sim_softc(sim);
637	sc = camsc->inf->aac_sc;
638
639	if (sc == NULL) {
640		printf("aac: Null sc?\n");
641		return (CAM_REQ_ABORTED);
642	}
643
644	aac_alloc_sync_fib(sc, &fib);
645
646	vmi = (struct aac_vmioctl *)&fib->data[0];
647	bzero(vmi, sizeof(struct aac_vmioctl));
648
649	vmi->Command = VM_Ioctl;
650	vmi->ObjType = FT_DRIVE;
651	vmi->MethId = sc->scsi_method_id;
652	vmi->ObjId = 0;
653	vmi->IoctlCmd = ResetBus;
654
655	rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
656	rbc->BusNumber = camsc->inf->BusNumber;
657
658	e = aac_sync_fib(sc, ContainerCommand, 0, fib,
659	    sizeof(struct aac_vmioctl));
660	if (e) {
661		device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
662		    e);
663		aac_release_sync_fib(sc);
664		return (CAM_REQ_ABORTED);
665	}
666
667	aac_release_sync_fib(sc);
668	return (CAM_REQ_CMP);
669}
670
671static u_int32_t
672aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
673{
674	return (CAM_UA_ABORT);
675}
676
677static u_int32_t
678aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
679{
680	return (CAM_UA_TERMIO);
681}
682