1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2002 Adaptec, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
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 device_method_t	aac_pass_methods[] = {
90	DEVMETHOD(device_probe,		aac_cam_probe),
91	DEVMETHOD(device_attach,	aac_cam_attach),
92	DEVMETHOD(device_detach,	aac_cam_detach),
93	DEVMETHOD_END
94};
95
96static driver_t	aac_pass_driver = {
97	"aacp",
98	aac_pass_methods,
99	sizeof(struct aac_cam)
100};
101
102DRIVER_MODULE(aacp, aac, aac_pass_driver, NULL, NULL);
103MODULE_DEPEND(aacp, cam, 1, 1, 1);
104
105static MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
106
107static void
108aac_cam_rescan(struct aac_softc *sc, uint32_t channel, uint32_t target_id)
109{
110	union ccb *ccb;
111	struct aac_sim *sim;
112	struct aac_cam *camsc;
113
114	if (target_id == AAC_CAM_TARGET_WILDCARD)
115		target_id = CAM_TARGET_WILDCARD;
116
117	TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) {
118		camsc = sim->aac_cam;
119		if (camsc == NULL || camsc->inf == NULL ||
120		    camsc->inf->BusNumber != channel)
121			continue;
122
123		ccb = xpt_alloc_ccb_nowait();
124		if (ccb == NULL) {
125			device_printf(sc->aac_dev,
126			    "Cannot allocate ccb for bus rescan.\n");
127			return;
128		}
129
130		if (xpt_create_path(&ccb->ccb_h.path, NULL,
131		    cam_sim_path(camsc->sim),
132		    target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
133			xpt_free_ccb(ccb);
134			device_printf(sc->aac_dev,
135			    "Cannot create path for bus rescan.\n");
136			return;
137		}
138		xpt_rescan(ccb);
139		break;
140	}
141}
142
143static void
144aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
145{
146	union ccb *ccb;
147	struct aac_cam *camsc;
148
149	switch (event->ev_type) {
150	case AAC_EVENT_CMFREE:
151		ccb = arg;
152		camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
153		free(event, M_AACCAM);
154		xpt_release_simq(camsc->sim, 1);
155		ccb->ccb_h.status = CAM_REQUEUE_REQ;
156		xpt_done(ccb);
157		break;
158	default:
159		device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
160		    event->ev_type);
161		break;
162	}
163}
164
165static int
166aac_cam_probe(device_t dev)
167{
168	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
169
170	return (0);
171}
172
173static int
174aac_cam_detach(device_t dev)
175{
176	struct aac_softc *sc;
177	struct aac_cam *camsc;
178	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
179
180	camsc = (struct aac_cam *)device_get_softc(dev);
181	sc = camsc->inf->aac_sc;
182	camsc->inf->aac_cam = NULL;
183
184	mtx_lock(&sc->aac_io_lock);
185
186	xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
187	xpt_free_path(camsc->path);
188	xpt_bus_deregister(cam_sim_path(camsc->sim));
189	cam_sim_free(camsc->sim, /*free_devq*/TRUE);
190
191	sc->cam_rescan_cb = NULL;
192
193	mtx_unlock(&sc->aac_io_lock);
194
195	return (0);
196}
197
198/*
199 * Register the driver as a CAM SIM
200 */
201static int
202aac_cam_attach(device_t dev)
203{
204	struct cam_devq *devq;
205	struct cam_sim *sim;
206	struct cam_path *path;
207	struct aac_cam *camsc;
208	struct aac_sim *inf;
209
210	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
211
212	camsc = (struct aac_cam *)device_get_softc(dev);
213	inf = (struct aac_sim *)device_get_ivars(dev);
214	camsc->inf = inf;
215	camsc->inf->aac_cam = camsc;
216
217	devq = cam_simq_alloc(inf->TargetsPerBus);
218	if (devq == NULL)
219		return (EIO);
220
221	sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
222	    device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
223	if (sim == NULL) {
224		cam_simq_free(devq);
225		return (EIO);
226	}
227
228	/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
229	mtx_lock(&inf->aac_sc->aac_io_lock);
230	if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
231		cam_sim_free(sim, TRUE);
232		mtx_unlock(&inf->aac_sc->aac_io_lock);
233		return (EIO);
234	}
235
236	if (xpt_create_path(&path, NULL, cam_sim_path(sim),
237	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
238		xpt_bus_deregister(cam_sim_path(sim));
239		cam_sim_free(sim, TRUE);
240		mtx_unlock(&inf->aac_sc->aac_io_lock);
241		return (EIO);
242	}
243	inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
244	mtx_unlock(&inf->aac_sc->aac_io_lock);
245
246	camsc->sim = sim;
247	camsc->path = path;
248
249	return (0);
250}
251
252static void
253aac_cam_action(struct cam_sim *sim, union ccb *ccb)
254{
255	struct	aac_cam *camsc;
256	struct	aac_softc *sc;
257	struct	aac_srb *srb;
258	struct	aac_fib *fib;
259	struct	aac_command *cm;
260
261	camsc = (struct aac_cam *)cam_sim_softc(sim);
262	sc = camsc->inf->aac_sc;
263	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
264
265	/* Synchronous ops, and ops that don't require communication with the
266	 * controller */
267	switch(ccb->ccb_h.func_code) {
268	case XPT_SCSI_IO:
269	case XPT_RESET_DEV:
270		/* These are handled down below */
271		break;
272	case XPT_CALC_GEOMETRY:
273	{
274		struct ccb_calc_geometry *ccg;
275		u_int32_t size_mb;
276		u_int32_t secs_per_cylinder;
277
278		ccg = &ccb->ccg;
279		size_mb = ccg->volume_size /
280		    ((1024L * 1024L) / ccg->block_size);
281		if (size_mb >= (2 * 1024)) {		/* 2GB */
282			ccg->heads = 255;
283			ccg->secs_per_track = 63;
284		} else if (size_mb >= (1 * 1024)) {	/* 1GB */
285			ccg->heads = 128;
286			ccg->secs_per_track = 32;
287		} else {
288			ccg->heads = 64;
289			ccg->secs_per_track = 32;
290		}
291		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
292		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
293
294		ccb->ccb_h.status = CAM_REQ_CMP;
295		xpt_done(ccb);
296		return;
297	}
298	case XPT_PATH_INQ:
299	{
300		struct ccb_pathinq *cpi = &ccb->cpi;
301
302		cpi->version_num = 1;
303		cpi->hba_inquiry = PI_WIDE_16;
304		cpi->target_sprt = 0;
305
306		/*
307		 * Resetting via the passthrough or parallel bus scan
308		 * causes problems.
309		 */
310		cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN;
311		cpi->hba_eng_cnt = 0;
312		cpi->max_target = camsc->inf->TargetsPerBus;
313		cpi->max_lun = 8;	/* Per the controller spec */
314		cpi->initiator_id = camsc->inf->InitiatorBusId;
315		cpi->bus_id = camsc->inf->BusNumber;
316		cpi->base_transfer_speed = 3300;
317		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
318		strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
319		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
320		cpi->unit_number = cam_sim_unit(sim);
321		cpi->transport = XPORT_SPI;
322		cpi->transport_version = 2;
323		cpi->protocol = PROTO_SCSI;
324		cpi->protocol_version = SCSI_REV_2;
325		ccb->ccb_h.status = CAM_REQ_CMP;
326		xpt_done(ccb);
327		return;
328	}
329	case XPT_GET_TRAN_SETTINGS:
330	{
331		struct ccb_trans_settings_scsi *scsi =
332			&ccb->cts.proto_specific.scsi;
333		struct ccb_trans_settings_spi *spi =
334			&ccb->cts.xport_specific.spi;
335		ccb->cts.protocol = PROTO_SCSI;
336		ccb->cts.protocol_version = SCSI_REV_2;
337		ccb->cts.transport = XPORT_SPI;
338		ccb->cts.transport_version = 2;
339		if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
340			scsi->valid = CTS_SCSI_VALID_TQ;
341			spi->valid |= CTS_SPI_VALID_DISC;
342		} else {
343			scsi->valid = 0;
344		}
345		ccb->ccb_h.status = CAM_REQ_CMP;
346		xpt_done(ccb);
347		return;
348	}
349	case XPT_SET_TRAN_SETTINGS:
350		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
351		xpt_done(ccb);
352		return;
353	case XPT_RESET_BUS:
354		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
355			ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
356		} else {
357			ccb->ccb_h.status = CAM_REQ_CMP;
358		}
359		xpt_done(ccb);
360		return;
361	case XPT_ABORT:
362		ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
363		xpt_done(ccb);
364		return;
365	case XPT_TERM_IO:
366		ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
367		xpt_done(ccb);
368		return;
369	default:
370		device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
371		    ccb->ccb_h.func_code);
372		ccb->ccb_h.status = CAM_PROVIDE_FAIL;
373		xpt_done(ccb);
374		return;
375	}
376
377	/* Async ops that require communcation with the controller */
378
379	if (aac_alloc_command(sc, &cm)) {
380		struct aac_event *event;
381
382		xpt_freeze_simq(sim, 1);
383		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
384		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
385		event = malloc(sizeof(struct aac_event), M_AACCAM,
386		    M_NOWAIT | M_ZERO);
387		if (event == NULL) {
388			device_printf(sc->aac_dev,
389			    "Warning, out of memory for event\n");
390			return;
391		}
392		event->ev_callback = aac_cam_event;
393		event->ev_arg = ccb;
394		event->ev_type = AAC_EVENT_CMFREE;
395		aac_add_event(sc, event);
396		return;
397	}
398
399	fib = cm->cm_fib;
400	srb = (struct aac_srb *)&fib->data[0];
401	cm->cm_datalen = 0;
402
403	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
404	case CAM_DIR_IN:
405		srb->flags = AAC_SRB_FLAGS_DATA_IN;
406		cm->cm_flags |= AAC_CMD_DATAIN;
407		break;
408	case CAM_DIR_OUT:
409		srb->flags = AAC_SRB_FLAGS_DATA_OUT;
410		cm->cm_flags |= AAC_CMD_DATAOUT;
411		break;
412	case CAM_DIR_NONE:
413		srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
414		break;
415	default:
416		srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
417		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
418		break;
419	}
420
421	switch(ccb->ccb_h.func_code) {
422	case XPT_SCSI_IO:
423	{
424		struct ccb_scsiio *csio = &ccb->csio;
425
426		srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
427
428		/*
429		 * Copy the CDB into the SRB.  It's only 6-16 bytes,
430		 * so a copy is not too expensive.
431		 */
432		srb->cdb_len = csio->cdb_len;
433		if (ccb->ccb_h.flags & CAM_CDB_POINTER)
434			bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
435			    srb->cdb_len);
436		else
437			bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
438			    srb->cdb_len);
439
440		/* Set command */
441		fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
442			ScsiPortCommandU64 : ScsiPortCommand;
443
444		/* Map the s/g list. XXX 32bit addresses only! */
445		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
446			switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
447			case CAM_DATA_VADDR:
448				srb->data_len = csio->dxfer_len;
449				/*
450				 * Arrange things so that the S/G
451				 * map will get set up automagically
452				 */
453				cm->cm_data = (void *)csio->data_ptr;
454				cm->cm_datalen = csio->dxfer_len;
455				cm->cm_sgtable = &srb->sg_map;
456				break;
457			case CAM_DATA_PADDR:
458				/* Send a 32bit command */
459				fib->Header.Command = ScsiPortCommand;
460				srb->sg_map.SgCount = 1;
461				srb->sg_map.SgEntry[0].SgAddress =
462				    (uint32_t)(uintptr_t)csio->data_ptr;
463				srb->sg_map.SgEntry[0].SgByteCount =
464				    csio->dxfer_len;
465				srb->data_len = csio->dxfer_len;
466				break;
467			default:
468				/* XXX Need to handle multiple s/g elements */
469				panic("aac_cam: multiple s/g elements");
470			}
471		} else {
472			srb->sg_map.SgCount = 0;
473			srb->sg_map.SgEntry[0].SgByteCount = 0;
474			srb->data_len = 0;
475		}
476
477		break;
478	}
479	case XPT_RESET_DEV:
480		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
481			srb->function = AAC_SRB_FUNC_RESET_DEVICE;
482			break;
483		} else {
484			ccb->ccb_h.status = CAM_REQ_CMP;
485			xpt_done(ccb);
486			return;
487		}
488	default:
489		break;
490	}
491
492	srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
493	srb->target = ccb->ccb_h.target_id;
494	srb->lun = ccb->ccb_h.target_lun;
495	srb->timeout = ccb->ccb_h.timeout;	/* XXX */
496	srb->retry_limit = 0;
497
498	cm->cm_complete = aac_cam_complete;
499	cm->cm_private = ccb;
500	cm->cm_timestamp = time_uptime;
501
502	fib->Header.XferState =
503	    AAC_FIBSTATE_HOSTOWNED	|
504	    AAC_FIBSTATE_INITIALISED	|
505	    AAC_FIBSTATE_FROMHOST	|
506	    AAC_FIBSTATE_REXPECTED	|
507	    AAC_FIBSTATE_NORM;
508	fib->Header.Size = sizeof(struct aac_fib_header) +
509	    sizeof(struct aac_srb);
510
511	aac_enqueue_ready(cm);
512	aac_startio(cm->cm_sc);
513}
514
515static void
516aac_cam_poll(struct cam_sim *sim)
517{
518	/*
519	 * Pinging the interrupt routine isn't very safe, nor is it
520	 * really necessary.  Do nothing.
521	 */
522}
523
524static void
525aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb)
526{
527	struct scsi_inquiry_data *inq;
528	uint8_t *data;
529	uint8_t device, qual;
530
531	/* If this is an inquiry command, fake things out */
532	if (ccb->ccb_h.flags & CAM_CDB_POINTER)
533		data = ccb->csio.cdb_io.cdb_ptr;
534	else
535		data = ccb->csio.cdb_io.cdb_bytes;
536
537	if (data[0] != INQUIRY)
538		return;
539
540	if (ccb->ccb_h.status == CAM_REQ_CMP) {
541		inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
542		device = SID_TYPE(inq);
543		qual = SID_QUAL(inq);
544
545		/*
546		 * We want DASD and PROC devices to only be
547		 * visible through the pass device.
548		 */
549		if (((device == T_DIRECT) ||
550		    (device == T_PROCESSOR) ||
551		    (sc->flags & AAC_FLAGS_CAM_PASSONLY))) {
552			/*
553			 * Some aac(4) adapters will always report that a direct
554			 * access device is offline in response to a INQUIRY
555			 * command that does not retrieve vital product data.
556			 * Force the qualifier to connected so that upper layers
557			 * correctly recognize that a disk is present.
558			 */
559			if ((data[1] & SI_EVPD) == 0 && device == T_DIRECT &&
560			    qual == SID_QUAL_LU_OFFLINE)
561				qual = SID_QUAL_LU_CONNECTED;
562			ccb->csio.data_ptr[0] = (qual << 5) | T_NODEVICE;
563		}
564	} else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
565		ccb->ccb_h.target_lun != 0) {
566		/* fix for INQUIRYs on Lun>0 */
567		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
568	}
569}
570
571static void
572aac_cam_complete(struct aac_command *cm)
573{
574	union	ccb *ccb;
575	struct 	aac_srb_response *srbr;
576	struct	aac_softc *sc;
577	int	sense_returned;
578
579	sc = cm->cm_sc;
580	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
581	ccb = cm->cm_private;
582	srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
583
584	if (srbr->fib_status != 0) {
585		device_printf(sc->aac_dev, "Passthru FIB failed!\n");
586		ccb->ccb_h.status = CAM_REQ_ABORTED;
587	} else {
588		/*
589		 * The SRB error codes just happen to match the CAM error
590		 * codes.  How convenient!
591		 */
592		ccb->ccb_h.status = srbr->srb_status;
593
594		/* Take care of SCSI_IO ops. */
595		if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
596			ccb->csio.scsi_status = srbr->scsi_status;
597
598			/* Take care of autosense */
599			if (srbr->sense_len) {
600				sense_returned = srbr->sense_len;
601				if (sense_returned < ccb->csio.sense_len)
602					ccb->csio.sense_resid =
603					   ccb->csio.sense_len -
604					   sense_returned;
605					else
606					    ccb->csio.sense_resid = 0;
607				bzero(&ccb->csio.sense_data,
608				    sizeof(struct scsi_sense_data));
609				bcopy(&srbr->sense[0], &ccb->csio.sense_data,
610				    min(ccb->csio.sense_len, sense_returned));
611				ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
612				// scsi_sense_print(&ccb->csio);
613			}
614
615			aac_cam_fix_inquiry(sc, ccb);
616		}
617	}
618
619	aac_release_command(cm);
620	xpt_done(ccb);
621}
622
623static u_int32_t
624aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
625{
626	struct aac_fib *fib;
627	struct aac_softc *sc;
628	struct aac_cam *camsc;
629	struct aac_vmioctl *vmi;
630	struct aac_resetbus *rbc;
631	int e;
632
633	camsc = (struct aac_cam *)cam_sim_softc(sim);
634	sc = camsc->inf->aac_sc;
635
636	if (sc == NULL) {
637		printf("aac: Null sc?\n");
638		return (CAM_REQ_ABORTED);
639	}
640
641	aac_alloc_sync_fib(sc, &fib);
642
643	vmi = (struct aac_vmioctl *)&fib->data[0];
644	bzero(vmi, sizeof(struct aac_vmioctl));
645
646	vmi->Command = VM_Ioctl;
647	vmi->ObjType = FT_DRIVE;
648	vmi->MethId = sc->scsi_method_id;
649	vmi->ObjId = 0;
650	vmi->IoctlCmd = ResetBus;
651
652	rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
653	rbc->BusNumber = camsc->inf->BusNumber;
654
655	e = aac_sync_fib(sc, ContainerCommand, 0, fib,
656	    sizeof(struct aac_vmioctl));
657	if (e) {
658		device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
659		    e);
660		aac_release_sync_fib(sc);
661		return (CAM_REQ_ABORTED);
662	}
663
664	aac_release_sync_fib(sc);
665	return (CAM_REQ_CMP);
666}
667
668static u_int32_t
669aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
670{
671	return (CAM_UA_ABORT);
672}
673
674static u_int32_t
675aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
676{
677	return (CAM_UA_TERMIO);
678}
679