1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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__FBSDID("$FreeBSD$");
31
32/*
33 * CAM front-end for communicating with non-DASD devices
34 */
35
36#include "opt_aac.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/kernel.h>
41#include <sys/sysctl.h>
42#include <sys/lock.h>
43#include <sys/malloc.h>
44#include <sys/module.h>
45#include <sys/mutex.h>
46
47#include <cam/cam.h>
48#include <cam/cam_ccb.h>
49#include <cam/cam_debug.h>
50#include <cam/cam_periph.h>
51#include <cam/cam_sim.h>
52#include <cam/cam_xpt_sim.h>
53#include <cam/scsi/scsi_all.h>
54#include <cam/scsi/scsi_message.h>
55
56#include <sys/bus.h>
57#include <sys/conf.h>
58#include <sys/disk.h>
59
60#include <machine/md_var.h>
61#include <machine/bus.h>
62#include <sys/rman.h>
63
64#include <vm/vm.h>
65#include <vm/pmap.h>
66
67#include <dev/aac/aacreg.h>
68#include <sys/aac_ioctl.h>
69#include <dev/aac/aacvar.h>
70
71struct aac_cam {
72	device_t		dev;
73	struct aac_sim		*inf;
74	struct cam_sim		*sim;
75	struct cam_path		*path;
76};
77
78static int aac_cam_probe(device_t dev);
79static int aac_cam_attach(device_t dev);
80static int aac_cam_detach(device_t dev);
81static void aac_cam_action(struct cam_sim *, union ccb *);
82static void aac_cam_poll(struct cam_sim *);
83static void aac_cam_complete(struct aac_command *);
84static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel,
85    uint32_t target_id);
86
87static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
88static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
89static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
90
91static devclass_t	aac_pass_devclass;
92
93static device_method_t	aac_pass_methods[] = {
94	DEVMETHOD(device_probe,		aac_cam_probe),
95	DEVMETHOD(device_attach,	aac_cam_attach),
96	DEVMETHOD(device_detach,	aac_cam_detach),
97	DEVMETHOD_END
98};
99
100static driver_t	aac_pass_driver = {
101	"aacp",
102	aac_pass_methods,
103	sizeof(struct aac_cam)
104};
105
106DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, NULL, NULL);
107MODULE_DEPEND(aacp, cam, 1, 1, 1);
108
109static MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
110
111static void
112aac_cam_rescan(struct aac_softc *sc, uint32_t channel, uint32_t target_id)
113{
114	union ccb *ccb;
115	struct aac_sim *sim;
116	struct aac_cam *camsc;
117
118	if (target_id == AAC_CAM_TARGET_WILDCARD)
119		target_id = CAM_TARGET_WILDCARD;
120
121	TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) {
122		camsc = sim->aac_cam;
123		if (camsc == NULL || camsc->inf == NULL ||
124		    camsc->inf->BusNumber != channel)
125			continue;
126
127		ccb = xpt_alloc_ccb_nowait();
128		if (ccb == NULL) {
129			device_printf(sc->aac_dev,
130			    "Cannot allocate ccb for bus rescan.\n");
131			return;
132		}
133
134		if (xpt_create_path(&ccb->ccb_h.path, NULL,
135		    cam_sim_path(camsc->sim),
136		    target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
137			xpt_free_ccb(ccb);
138			device_printf(sc->aac_dev,
139			    "Cannot create path for bus rescan.\n");
140			return;
141		}
142		xpt_rescan(ccb);
143		break;
144	}
145}
146
147
148static void
149aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
150{
151	union ccb *ccb;
152	struct aac_cam *camsc;
153
154	switch (event->ev_type) {
155	case AAC_EVENT_CMFREE:
156		ccb = arg;
157		camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
158		free(event, M_AACCAM);
159		xpt_release_simq(camsc->sim, 1);
160		ccb->ccb_h.status = CAM_REQUEUE_REQ;
161		xpt_done(ccb);
162		break;
163	default:
164		device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
165		    event->ev_type);
166		break;
167	}
168}
169
170static int
171aac_cam_probe(device_t dev)
172{
173	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
174
175	return (0);
176}
177
178static int
179aac_cam_detach(device_t dev)
180{
181	struct aac_softc *sc;
182	struct aac_cam *camsc;
183	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
184
185	camsc = (struct aac_cam *)device_get_softc(dev);
186	sc = camsc->inf->aac_sc;
187	camsc->inf->aac_cam = NULL;
188
189	mtx_lock(&sc->aac_io_lock);
190
191	xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
192	xpt_free_path(camsc->path);
193	xpt_bus_deregister(cam_sim_path(camsc->sim));
194	cam_sim_free(camsc->sim, /*free_devq*/TRUE);
195
196	sc->cam_rescan_cb = NULL;
197
198	mtx_unlock(&sc->aac_io_lock);
199
200	return (0);
201}
202
203/*
204 * Register the driver as a CAM SIM
205 */
206static int
207aac_cam_attach(device_t dev)
208{
209	struct cam_devq *devq;
210	struct cam_sim *sim;
211	struct cam_path *path;
212	struct aac_cam *camsc;
213	struct aac_sim *inf;
214
215	fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
216
217	camsc = (struct aac_cam *)device_get_softc(dev);
218	inf = (struct aac_sim *)device_get_ivars(dev);
219	camsc->inf = inf;
220	camsc->inf->aac_cam = camsc;
221
222	devq = cam_simq_alloc(inf->TargetsPerBus);
223	if (devq == NULL)
224		return (EIO);
225
226	sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
227	    device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
228	if (sim == NULL) {
229		cam_simq_free(devq);
230		return (EIO);
231	}
232
233	/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
234	mtx_lock(&inf->aac_sc->aac_io_lock);
235	if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
236		cam_sim_free(sim, TRUE);
237		mtx_unlock(&inf->aac_sc->aac_io_lock);
238		return (EIO);
239	}
240
241	if (xpt_create_path(&path, NULL, cam_sim_path(sim),
242	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
243		xpt_bus_deregister(cam_sim_path(sim));
244		cam_sim_free(sim, TRUE);
245		mtx_unlock(&inf->aac_sc->aac_io_lock);
246		return (EIO);
247	}
248	inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
249	mtx_unlock(&inf->aac_sc->aac_io_lock);
250
251	camsc->sim = sim;
252	camsc->path = path;
253
254	return (0);
255}
256
257static void
258aac_cam_action(struct cam_sim *sim, union ccb *ccb)
259{
260	struct	aac_cam *camsc;
261	struct	aac_softc *sc;
262	struct	aac_srb *srb;
263	struct	aac_fib *fib;
264	struct	aac_command *cm;
265
266	camsc = (struct aac_cam *)cam_sim_softc(sim);
267	sc = camsc->inf->aac_sc;
268	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
269
270	/* Synchronous ops, and ops that don't require communication with the
271	 * controller */
272	switch(ccb->ccb_h.func_code) {
273	case XPT_SCSI_IO:
274	case XPT_RESET_DEV:
275		/* These are handled down below */
276		break;
277	case XPT_CALC_GEOMETRY:
278	{
279		struct ccb_calc_geometry *ccg;
280		u_int32_t size_mb;
281		u_int32_t secs_per_cylinder;
282
283		ccg = &ccb->ccg;
284		size_mb = ccg->volume_size /
285		    ((1024L * 1024L) / ccg->block_size);
286		if (size_mb >= (2 * 1024)) {		/* 2GB */
287			ccg->heads = 255;
288			ccg->secs_per_track = 63;
289		} else if (size_mb >= (1 * 1024)) {	/* 1GB */
290			ccg->heads = 128;
291			ccg->secs_per_track = 32;
292		} else {
293			ccg->heads = 64;
294			ccg->secs_per_track = 32;
295		}
296		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
297		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
298
299		ccb->ccb_h.status = CAM_REQ_CMP;
300		xpt_done(ccb);
301		return;
302	}
303	case XPT_PATH_INQ:
304	{
305		struct ccb_pathinq *cpi = &ccb->cpi;
306
307		cpi->version_num = 1;
308		cpi->hba_inquiry = PI_WIDE_16;
309		cpi->target_sprt = 0;
310
311		/*
312		 * Resetting via the passthrough or parallel bus scan
313		 * causes problems.
314		 */
315		cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN;
316		cpi->hba_eng_cnt = 0;
317		cpi->max_target = camsc->inf->TargetsPerBus;
318		cpi->max_lun = 8;	/* Per the controller spec */
319		cpi->initiator_id = camsc->inf->InitiatorBusId;
320		cpi->bus_id = camsc->inf->BusNumber;
321		cpi->base_transfer_speed = 3300;
322		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
323		strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
324		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
325		cpi->unit_number = cam_sim_unit(sim);
326		cpi->transport = XPORT_SPI;
327		cpi->transport_version = 2;
328		cpi->protocol = PROTO_SCSI;
329		cpi->protocol_version = SCSI_REV_2;
330		ccb->ccb_h.status = CAM_REQ_CMP;
331		xpt_done(ccb);
332		return;
333	}
334	case XPT_GET_TRAN_SETTINGS:
335	{
336		struct ccb_trans_settings_scsi *scsi =
337			&ccb->cts.proto_specific.scsi;
338		struct ccb_trans_settings_spi *spi =
339			&ccb->cts.xport_specific.spi;
340		ccb->cts.protocol = PROTO_SCSI;
341		ccb->cts.protocol_version = SCSI_REV_2;
342		ccb->cts.transport = XPORT_SPI;
343		ccb->cts.transport_version = 2;
344		if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
345			scsi->valid = CTS_SCSI_VALID_TQ;
346			spi->valid |= CTS_SPI_VALID_DISC;
347		} else {
348			scsi->valid = 0;
349		}
350		ccb->ccb_h.status = CAM_REQ_CMP;
351		xpt_done(ccb);
352		return;
353	}
354	case XPT_SET_TRAN_SETTINGS:
355		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
356		xpt_done(ccb);
357		return;
358	case XPT_RESET_BUS:
359		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
360			ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
361		} else {
362			ccb->ccb_h.status = CAM_REQ_CMP;
363		}
364		xpt_done(ccb);
365		return;
366	case XPT_ABORT:
367		ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
368		xpt_done(ccb);
369		return;
370	case XPT_TERM_IO:
371		ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
372		xpt_done(ccb);
373		return;
374	default:
375		device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
376		    ccb->ccb_h.func_code);
377		ccb->ccb_h.status = CAM_PROVIDE_FAIL;
378		xpt_done(ccb);
379		return;
380	}
381
382	/* Async ops that require communcation with the controller */
383
384	if (aac_alloc_command(sc, &cm)) {
385		struct aac_event *event;
386
387		xpt_freeze_simq(sim, 1);
388		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
389		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
390		event = malloc(sizeof(struct aac_event), M_AACCAM,
391		    M_NOWAIT | M_ZERO);
392		if (event == NULL) {
393			device_printf(sc->aac_dev,
394			    "Warning, out of memory for event\n");
395			return;
396		}
397		event->ev_callback = aac_cam_event;
398		event->ev_arg = ccb;
399		event->ev_type = AAC_EVENT_CMFREE;
400		aac_add_event(sc, event);
401		return;
402	}
403
404	fib = cm->cm_fib;
405	srb = (struct aac_srb *)&fib->data[0];
406	cm->cm_datalen = 0;
407
408	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
409	case CAM_DIR_IN:
410		srb->flags = AAC_SRB_FLAGS_DATA_IN;
411		cm->cm_flags |= AAC_CMD_DATAIN;
412		break;
413	case CAM_DIR_OUT:
414		srb->flags = AAC_SRB_FLAGS_DATA_OUT;
415		cm->cm_flags |= AAC_CMD_DATAOUT;
416		break;
417	case CAM_DIR_NONE:
418		srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
419		break;
420	default:
421		srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
422		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
423		break;
424	}
425
426	switch(ccb->ccb_h.func_code) {
427	case XPT_SCSI_IO:
428	{
429		struct ccb_scsiio *csio = &ccb->csio;
430
431		srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
432
433		/*
434		 * Copy the CDB into the SRB.  It's only 6-16 bytes,
435		 * so a copy is not too expensive.
436		 */
437		srb->cdb_len = csio->cdb_len;
438		if (ccb->ccb_h.flags & CAM_CDB_POINTER)
439			bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
440			    srb->cdb_len);
441		else
442			bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
443			    srb->cdb_len);
444
445		/* Set command */
446		fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
447			ScsiPortCommandU64 : ScsiPortCommand;
448
449		/* Map the s/g list. XXX 32bit addresses only! */
450		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
451			switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
452			case CAM_DATA_VADDR:
453				srb->data_len = csio->dxfer_len;
454				/*
455				 * Arrange things so that the S/G
456				 * map will get set up automagically
457				 */
458				cm->cm_data = (void *)csio->data_ptr;
459				cm->cm_datalen = csio->dxfer_len;
460				cm->cm_sgtable = &srb->sg_map;
461				break;
462			case CAM_DATA_PADDR:
463				/* Send a 32bit command */
464				fib->Header.Command = ScsiPortCommand;
465				srb->sg_map.SgCount = 1;
466				srb->sg_map.SgEntry[0].SgAddress =
467				    (uint32_t)(uintptr_t)csio->data_ptr;
468				srb->sg_map.SgEntry[0].SgByteCount =
469				    csio->dxfer_len;
470				srb->data_len = csio->dxfer_len;
471				break;
472			default:
473				/* XXX Need to handle multiple s/g elements */
474				panic("aac_cam: multiple s/g elements");
475			}
476		} else {
477			srb->sg_map.SgCount = 0;
478			srb->sg_map.SgEntry[0].SgByteCount = 0;
479			srb->data_len = 0;
480		}
481
482		break;
483	}
484	case XPT_RESET_DEV:
485		if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
486			srb->function = AAC_SRB_FUNC_RESET_DEVICE;
487			break;
488		} else {
489			ccb->ccb_h.status = CAM_REQ_CMP;
490			xpt_done(ccb);
491			return;
492		}
493	default:
494		break;
495	}
496
497	srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
498	srb->target = ccb->ccb_h.target_id;
499	srb->lun = ccb->ccb_h.target_lun;
500	srb->timeout = ccb->ccb_h.timeout;	/* XXX */
501	srb->retry_limit = 0;
502
503	cm->cm_complete = aac_cam_complete;
504	cm->cm_private = ccb;
505	cm->cm_timestamp = time_uptime;
506
507	fib->Header.XferState =
508	    AAC_FIBSTATE_HOSTOWNED	|
509	    AAC_FIBSTATE_INITIALISED	|
510	    AAC_FIBSTATE_FROMHOST	|
511	    AAC_FIBSTATE_REXPECTED	|
512	    AAC_FIBSTATE_NORM;
513	fib->Header.Size = sizeof(struct aac_fib_header) +
514	    sizeof(struct aac_srb);
515
516	aac_enqueue_ready(cm);
517	aac_startio(cm->cm_sc);
518}
519
520static void
521aac_cam_poll(struct cam_sim *sim)
522{
523	/*
524	 * Pinging the interrupt routine isn't very safe, nor is it
525	 * really necessary.  Do nothing.
526	 */
527}
528
529static void
530aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb)
531{
532	struct scsi_inquiry_data *inq;
533	uint8_t *data;
534	uint8_t device, qual;
535
536	/* If this is an inquiry command, fake things out */
537	if (ccb->ccb_h.flags & CAM_CDB_POINTER)
538		data = ccb->csio.cdb_io.cdb_ptr;
539	else
540		data = ccb->csio.cdb_io.cdb_bytes;
541
542	if (data[0] != INQUIRY)
543		return;
544
545	if (ccb->ccb_h.status == CAM_REQ_CMP) {
546		inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
547		device = SID_TYPE(inq);
548		qual = SID_QUAL(inq);
549
550		/*
551		 * We want DASD and PROC devices to only be
552		 * visible through the pass device.
553		 */
554		if (((device == T_DIRECT) ||
555		    (device == T_PROCESSOR) ||
556		    (sc->flags & AAC_FLAGS_CAM_PASSONLY))) {
557			/*
558			 * Some aac(4) adapters will always report that a direct
559			 * access device is offline in response to a INQUIRY
560			 * command that does not retrieve vital product data.
561			 * Force the qualifier to connected so that upper layers
562			 * correctly recognize that a disk is present.
563			 */
564			if ((data[1] & SI_EVPD) == 0 && device == T_DIRECT &&
565			    qual == SID_QUAL_LU_OFFLINE)
566				qual = SID_QUAL_LU_CONNECTED;
567			ccb->csio.data_ptr[0] = (qual << 5) | T_NODEVICE;
568		}
569	} else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
570		ccb->ccb_h.target_lun != 0) {
571		/* fix for INQUIRYs on Lun>0 */
572		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
573	}
574}
575
576static void
577aac_cam_complete(struct aac_command *cm)
578{
579	union	ccb *ccb;
580	struct 	aac_srb_response *srbr;
581	struct	aac_softc *sc;
582	int	sense_returned;
583
584	sc = cm->cm_sc;
585	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
586	ccb = cm->cm_private;
587	srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
588
589	if (srbr->fib_status != 0) {
590		device_printf(sc->aac_dev, "Passthru FIB failed!\n");
591		ccb->ccb_h.status = CAM_REQ_ABORTED;
592	} else {
593		/*
594		 * The SRB error codes just happen to match the CAM error
595		 * codes.  How convenient!
596		 */
597		ccb->ccb_h.status = srbr->srb_status;
598
599		/* Take care of SCSI_IO ops. */
600		if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
601			ccb->csio.scsi_status = srbr->scsi_status;
602
603			/* Take care of autosense */
604			if (srbr->sense_len) {
605				sense_returned = srbr->sense_len;
606				if (sense_returned < ccb->csio.sense_len)
607					ccb->csio.sense_resid =
608					   ccb->csio.sense_len -
609					   sense_returned;
610					else
611					    ccb->csio.sense_resid = 0;
612				bzero(&ccb->csio.sense_data,
613				    sizeof(struct scsi_sense_data));
614				bcopy(&srbr->sense[0], &ccb->csio.sense_data,
615				    min(ccb->csio.sense_len, sense_returned));
616				ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
617				// scsi_sense_print(&ccb->csio);
618			}
619
620			aac_cam_fix_inquiry(sc, ccb);
621		}
622	}
623
624	aac_release_command(cm);
625	xpt_done(ccb);
626}
627
628static u_int32_t
629aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
630{
631	struct aac_fib *fib;
632	struct aac_softc *sc;
633	struct aac_cam *camsc;
634	struct aac_vmioctl *vmi;
635	struct aac_resetbus *rbc;
636	int e;
637
638	camsc = (struct aac_cam *)cam_sim_softc(sim);
639	sc = camsc->inf->aac_sc;
640
641	if (sc == NULL) {
642		printf("aac: Null sc?\n");
643		return (CAM_REQ_ABORTED);
644	}
645
646	aac_alloc_sync_fib(sc, &fib);
647
648	vmi = (struct aac_vmioctl *)&fib->data[0];
649	bzero(vmi, sizeof(struct aac_vmioctl));
650
651	vmi->Command = VM_Ioctl;
652	vmi->ObjType = FT_DRIVE;
653	vmi->MethId = sc->scsi_method_id;
654	vmi->ObjId = 0;
655	vmi->IoctlCmd = ResetBus;
656
657	rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
658	rbc->BusNumber = camsc->inf->BusNumber;
659
660	e = aac_sync_fib(sc, ContainerCommand, 0, fib,
661	    sizeof(struct aac_vmioctl));
662	if (e) {
663		device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
664		    e);
665		aac_release_sync_fib(sc);
666		return (CAM_REQ_ABORTED);
667	}
668
669	aac_release_sync_fib(sc);
670	return (CAM_REQ_CMP);
671}
672
673static u_int32_t
674aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
675{
676	return (CAM_UA_ABORT);
677}
678
679static u_int32_t
680aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
681{
682	return (CAM_UA_TERMIO);
683}
684