drm/linux: Add down_write_killable()
[dragonfly.git] / sys / dev / raid / aac / aac_cam.c
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  * $FreeBSD: head/sys/dev/aac/aac_cam.c 251115 2013-05-30 00:11:22Z marius $
27  */
28
29 /*
30  * CAM front-end for communicating with non-DASD devices
31  */
32
33 #include "opt_aac.h"
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/lock.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
41
42 #include <bus/cam/cam.h>
43 #include <bus/cam/cam_ccb.h>
44 #include <bus/cam/cam_debug.h>
45 #include <bus/cam/cam_periph.h>
46 #include <bus/cam/cam_sim.h>
47 #include <bus/cam/cam_xpt_periph.h>
48 #include <bus/cam/cam_xpt_sim.h>
49 #include <bus/cam/scsi/scsi_all.h>
50 #include <bus/cam/scsi/scsi_message.h>
51
52 #include <sys/bus.h>
53 #include <sys/conf.h>
54 #include <sys/disk.h>
55
56 #include <machine/md_var.h>
57 #include <sys/rman.h>
58
59 #include <vm/vm.h>
60 #include <vm/pmap.h>
61
62 #include <dev/raid/aac/aacreg.h>
63 #include <dev/raid/aac/aac_ioctl.h>
64 #include <dev/raid/aac/aacvar.h>
65
66 struct aac_cam {
67         device_t                dev;
68         struct aac_sim          *inf;
69         struct cam_sim          *sim;
70         struct cam_path         *path;
71 };
72
73 static int aac_cam_probe(device_t dev);
74 static int aac_cam_attach(device_t dev);
75 static int aac_cam_detach(device_t dev);
76 static void aac_cam_action(struct cam_sim *, union ccb *);
77 static void aac_cam_poll(struct cam_sim *);
78 static void aac_cam_complete(struct aac_command *);
79 static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel,
80     uint32_t target_id);
81 static void aac_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
82
83 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
84 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
85 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
86
87 static devclass_t       aac_pass_devclass;
88
89 static 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
96 static driver_t aac_pass_driver = {
97         "aacp",
98         aac_pass_methods,
99         sizeof(struct aac_cam)
100 };
101
102 DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, NULL, NULL);
103 MODULE_DEPEND(aacp, cam, 1, 1, 1);
104
105 static MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
106
107 static void
108 aac_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();
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, xpt_periph,
131                     cam_sim_path(camsc->sim),
132                     target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
133                         xpt_free_ccb(&ccb->ccb_h);
134                         device_printf(sc->aac_dev,
135                             "Cannot create path for bus rescan.\n");
136                         return;
137                 }
138                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
139                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
140                 ccb->ccb_h.cbfcnp = aac_bus_scan_cb;
141                 ccb->crcn.flags = CAM_FLAG_NONE;
142                 xpt_action(ccb);
143                 break;
144         }
145 }
146
147 static void
148 aac_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
149 {
150         if (ccb->ccb_h.status != CAM_REQ_CMP)
151                 kprintf("cam_scan_callback: failure status = %x\n",
152                         ccb->ccb_h.status);
153
154         xpt_free_path(ccb->ccb_h.path);
155         xpt_free_ccb(&ccb->ccb_h);
156 }
157
158 static void
159 aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
160 {
161         union ccb *ccb;
162         struct aac_cam *camsc;
163
164         switch (event->ev_type) {
165         case AAC_EVENT_CMFREE:
166                 ccb = arg;
167                 camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
168                 kfree(event, M_AACCAM);
169                 xpt_release_simq(camsc->sim, 1);
170                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
171                 xpt_done(ccb);
172                 break;
173         default:
174                 device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
175                     event->ev_type);
176                 break;
177         }
178
179         return;
180 }
181
182 static int
183 aac_cam_probe(device_t dev)
184 {
185         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
186
187         return (0);
188 }
189
190 static int
191 aac_cam_detach(device_t dev)
192 {
193         struct aac_softc *sc;
194         struct aac_cam *camsc;
195         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
196
197         camsc = (struct aac_cam *)device_get_softc(dev);
198         sc = camsc->inf->aac_sc;
199         camsc->inf->aac_cam = NULL;
200
201         lockmgr(&sc->aac_io_lock, LK_EXCLUSIVE);
202
203         xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
204         xpt_free_path(camsc->path);
205         xpt_bus_deregister(cam_sim_path(camsc->sim));
206         cam_sim_free(camsc->sim);
207
208         sc->cam_rescan_cb = NULL;
209
210         lockmgr(&sc->aac_io_lock, LK_RELEASE);
211
212         return (0);
213 }
214
215 /*
216  * Register the driver as a CAM SIM
217  */
218 static int
219 aac_cam_attach(device_t dev)
220 {
221         struct cam_devq *devq;
222         struct cam_sim *sim;
223         struct cam_path *path;
224         struct aac_cam *camsc;
225         struct aac_sim *inf;
226
227         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
228
229         camsc = (struct aac_cam *)device_get_softc(dev);
230         inf = (struct aac_sim *)device_get_ivars(dev);
231         camsc->inf = inf;
232         camsc->inf->aac_cam = camsc;
233
234         devq = cam_simq_alloc(inf->TargetsPerBus);
235         if (devq == NULL)
236                 return (EIO);
237
238         sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
239             device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
240         cam_simq_release(devq);
241         if (sim == NULL)
242                 return (EIO);
243
244         /* Since every bus has it's own sim, every bus 'appears' as bus 0 */
245         lockmgr(&inf->aac_sc->aac_io_lock, LK_EXCLUSIVE);
246         if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
247                 cam_sim_free(sim);
248                 lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
249                 return (EIO);
250         }
251
252         if (xpt_create_path(&path, NULL, cam_sim_path(sim),
253             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
254                 xpt_bus_deregister(cam_sim_path(sim));
255                 cam_sim_free(sim);
256                 lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
257                 return (EIO);
258         }
259         inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
260         lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
261
262         camsc->sim = sim;
263         camsc->path = path;
264
265         return (0);
266 }
267
268 static void
269 aac_cam_action(struct cam_sim *sim, union ccb *ccb)
270 {
271         struct  aac_cam *camsc;
272         struct  aac_softc *sc;
273         struct  aac_srb *srb;
274         struct  aac_fib *fib;
275         struct  aac_command *cm;
276
277         camsc = (struct aac_cam *)cam_sim_softc(sim);
278         sc = camsc->inf->aac_sc;
279         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
280
281         /* Synchronous ops, and ops that don't require communication with the
282          * controller */
283         switch(ccb->ccb_h.func_code) {
284         case XPT_SCSI_IO:
285         case XPT_RESET_DEV:
286                 /* These are handled down below */
287                 break;
288         case XPT_CALC_GEOMETRY:
289         {
290                 struct ccb_calc_geometry *ccg;
291                 u_int32_t size_mb;
292                 u_int32_t secs_per_cylinder;
293
294                 ccg = &ccb->ccg;
295                 size_mb = ccg->volume_size /
296                     ((1024L * 1024L) / ccg->block_size);
297                 if (size_mb >= (2 * 1024)) {            /* 2GB */
298                         ccg->heads = 255;
299                         ccg->secs_per_track = 63;
300                 } else if (size_mb >= (1 * 1024)) {     /* 1GB */
301                         ccg->heads = 128;
302                         ccg->secs_per_track = 32;
303                 } else {
304                         ccg->heads = 64;
305                         ccg->secs_per_track = 32;
306                 }
307                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
308                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
309
310                 ccb->ccb_h.status = CAM_REQ_CMP;
311                 xpt_done(ccb);
312                 return;
313         }
314         case XPT_PATH_INQ:
315         {
316                 struct ccb_pathinq *cpi = &ccb->cpi;
317
318                 cpi->version_num = 1;
319                 cpi->hba_inquiry = PI_WIDE_16;
320                 cpi->target_sprt = 0;
321
322                 /*
323                  * Resetting via the passthrough or parallel bus scan
324                  * causes problems.
325                  */
326                 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN;
327                 cpi->hba_eng_cnt = 0;
328                 cpi->max_target = camsc->inf->TargetsPerBus;
329                 cpi->max_lun = 8;       /* Per the controller spec */
330                 cpi->initiator_id = camsc->inf->InitiatorBusId;
331                 cpi->bus_id = camsc->inf->BusNumber;
332                 cpi->base_transfer_speed = 3300;
333                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
334                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
335                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
336                 cpi->unit_number = cam_sim_unit(sim);
337                 cpi->transport = XPORT_SPI;
338                 cpi->transport_version = 2;
339                 cpi->protocol = PROTO_SCSI;
340                 cpi->protocol_version = SCSI_REV_2;
341                 ccb->ccb_h.status = CAM_REQ_CMP;
342                 xpt_done(ccb);
343                 return;
344         }
345         case XPT_GET_TRAN_SETTINGS:
346         {
347                 struct ccb_trans_settings_scsi *scsi =
348                         &ccb->cts.proto_specific.scsi;
349                 struct ccb_trans_settings_spi *spi =
350                         &ccb->cts.xport_specific.spi;
351                 ccb->cts.protocol = PROTO_SCSI;
352                 ccb->cts.protocol_version = SCSI_REV_2;
353                 ccb->cts.transport = XPORT_SPI;
354                 ccb->cts.transport_version = 2;
355                 if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
356                         scsi->valid = CTS_SCSI_VALID_TQ;
357                         spi->valid |= CTS_SPI_VALID_DISC;
358                 } else {
359                         scsi->valid = 0;
360                 }
361                 ccb->ccb_h.status = CAM_REQ_CMP;
362                 xpt_done(ccb);
363                 return;
364         }
365         case XPT_SET_TRAN_SETTINGS:
366                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
367                 xpt_done(ccb);
368                 return;
369         case XPT_RESET_BUS:
370                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
371                         ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
372                 } else {
373                         ccb->ccb_h.status = CAM_REQ_CMP;
374                 }
375                 xpt_done(ccb);
376                 return;
377         case XPT_ABORT:
378                 ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
379                 xpt_done(ccb);
380                 return;
381         case XPT_TERM_IO:
382                 ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
383                 xpt_done(ccb);
384                 return;
385         default:
386                 device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
387                     ccb->ccb_h.func_code);
388                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
389                 xpt_done(ccb);
390                 return;
391         }
392
393         /* Async ops that require communcation with the controller */
394
395         if (aac_alloc_command(sc, &cm)) {
396                 struct aac_event *event;
397
398                 xpt_freeze_simq(sim, 1);
399                 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
400                 ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
401                 event = kmalloc(sizeof(struct aac_event), M_AACCAM,
402                                 M_INTWAIT | M_ZERO);
403                 event->ev_callback = aac_cam_event;
404                 event->ev_arg = ccb;
405                 event->ev_type = AAC_EVENT_CMFREE;
406                 aac_add_event(sc, event);
407                 return;
408         }
409
410         fib = cm->cm_fib;
411         srb = (struct aac_srb *)&fib->data[0];
412         cm->cm_datalen = 0;
413
414         switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
415         case CAM_DIR_IN:
416                 srb->flags = AAC_SRB_FLAGS_DATA_IN;
417                 cm->cm_flags |= AAC_CMD_DATAIN;
418                 break;
419         case CAM_DIR_OUT:
420                 srb->flags = AAC_SRB_FLAGS_DATA_OUT;
421                 cm->cm_flags |= AAC_CMD_DATAOUT;
422                 break;
423         case CAM_DIR_NONE:
424                 srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
425                 break;
426         default:
427                 srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
428                 cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
429                 break;
430         }
431
432         switch(ccb->ccb_h.func_code) {
433         case XPT_SCSI_IO:
434         {
435                 struct ccb_scsiio *csio = &ccb->csio;
436
437                 srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
438
439                 /*
440                  * Copy the CDB into the SRB.  It's only 6-16 bytes,
441                  * so a copy is not too expensive.
442                  */
443                 srb->cdb_len = csio->cdb_len;
444                 if (ccb->ccb_h.flags & CAM_CDB_POINTER)
445                         bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
446                             srb->cdb_len);
447                 else
448                         bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
449                             srb->cdb_len);
450
451                 /* Set command */
452                 fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
453                         ScsiPortCommandU64 : ScsiPortCommand;
454
455                 /* Map the s/g list. XXX 32bit addresses only! */
456                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
457                         if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
458                                 srb->data_len = csio->dxfer_len;
459                                 if (ccb->ccb_h.flags & CAM_DATA_PHYS) {
460                                         /* Send a 32bit command */
461                                         fib->Header.Command = ScsiPortCommand;
462                                         srb->sg_map.SgCount = 1;
463                                         srb->sg_map.SgEntry[0].SgAddress =
464                                             (uint32_t)(uintptr_t)csio->data_ptr;
465                                         srb->sg_map.SgEntry[0].SgByteCount =
466                                             csio->dxfer_len;
467                                 } else {
468                                         /*
469                                          * Arrange things so that the S/G
470                                          * map will get set up automagically
471                                          */
472                                         cm->cm_data = (void *)csio->data_ptr;
473                                         cm->cm_datalen = csio->dxfer_len;
474                                         cm->cm_sgtable = &srb->sg_map;
475                                 }
476                         } else {
477                                 /* XXX Need to handle multiple s/g elements */
478                                 panic("aac_cam: multiple s/g elements");
479                         }
480                 } else {
481                         srb->sg_map.SgCount = 0;
482                         srb->sg_map.SgEntry[0].SgByteCount = 0;
483                         srb->data_len = 0;
484                 }
485
486                 break;
487         }
488         case XPT_RESET_DEV:
489                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
490                         srb->function = AAC_SRB_FUNC_RESET_DEVICE;
491                         break;
492                 } else {
493                         ccb->ccb_h.status = CAM_REQ_CMP;
494                         xpt_done(ccb);
495                         return;
496                 }
497         default:
498                 break;
499         }
500
501         srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
502         srb->target = ccb->ccb_h.target_id;
503         srb->lun = ccb->ccb_h.target_lun;
504         srb->timeout = ccb->ccb_h.timeout;      /* XXX */
505         srb->retry_limit = 0;
506
507         cm->cm_complete = aac_cam_complete;
508         cm->cm_private = ccb;
509         cm->cm_timestamp = time_uptime;
510
511         fib->Header.XferState =
512             AAC_FIBSTATE_HOSTOWNED      |
513             AAC_FIBSTATE_INITIALISED    |
514             AAC_FIBSTATE_FROMHOST       |
515             AAC_FIBSTATE_REXPECTED      |
516             AAC_FIBSTATE_NORM;
517         fib->Header.Size = sizeof(struct aac_fib_header) +
518             sizeof(struct aac_srb);
519
520         aac_enqueue_ready(cm);
521         aac_startio(cm->cm_sc);
522
523         return;
524 }
525
526 static void
527 aac_cam_poll(struct cam_sim *sim)
528 {
529         /*
530          * Pinging the interrupt routine isn't very safe, nor is it
531          * really necessary.  Do nothing.
532          */
533 }
534
535 static void
536 aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb)
537 {
538         struct scsi_inquiry_data *inq;
539         uint8_t *data;
540         uint8_t device, qual;
541
542         /* If this is an inquiry command, fake things out */
543         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
544                 data = ccb->csio.cdb_io.cdb_ptr;
545         else
546                 data = ccb->csio.cdb_io.cdb_bytes;
547
548         if (data[0] != INQUIRY)
549                 return;
550
551         if (ccb->ccb_h.status == CAM_REQ_CMP) {
552                 inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
553                 device = SID_TYPE(inq);
554                 qual = SID_QUAL(inq);
555
556                 /*
557                  * We want DASD and PROC devices to only be
558                  * visible through the pass device.
559                  */
560                 if (((device == T_DIRECT) ||
561                     (device == T_PROCESSOR) ||
562                     (sc->flags & AAC_FLAGS_CAM_PASSONLY))) {
563                         /*
564                          * Some aac(4) adapters will always report that a direct
565                          * access device is offline in response to a INQUIRY
566                          * command that does not retreive vital product data.
567                          * Force the qualifier to connected so that upper layers
568                          * correctly recognize that a disk is present.
569                          */
570                         if ((data[1] & SI_EVPD) == 0 && device == T_DIRECT &&
571                             qual == SID_QUAL_LU_OFFLINE)
572                                 qual = SID_QUAL_LU_CONNECTED;
573                         ccb->csio.data_ptr[0] = (qual << 5) | T_NODEVICE;
574                 }
575         } else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
576                 ccb->ccb_h.target_lun != 0) {
577                 /* fix for INQUIRYs on Lun>0 */
578                 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
579         }
580 }
581
582 static void
583 aac_cam_complete(struct aac_command *cm)
584 {
585         union   ccb *ccb;
586         struct  aac_srb_response *srbr;
587         struct  aac_softc *sc;
588         int     sense_returned;
589
590         sc = cm->cm_sc;
591         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
592         ccb = cm->cm_private;
593         srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
594
595         if (srbr->fib_status != 0) {
596                 device_printf(sc->aac_dev, "Passthru FIB failed!\n");
597                 ccb->ccb_h.status = CAM_REQ_ABORTED;
598         } else {
599                 /*
600                  * The SRB error codes just happen to match the CAM error
601                  * codes.  How convienient!
602                  */
603                 ccb->ccb_h.status = srbr->srb_status;
604
605                 /* Take care of SCSI_IO ops. */
606                 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
607                         ccb->csio.scsi_status = srbr->scsi_status;
608
609                         /* Take care of autosense */
610                         if (srbr->sense_len) {
611                                 sense_returned = srbr->sense_len;
612                                 if (sense_returned < ccb->csio.sense_len)
613                                         ccb->csio.sense_resid =
614                                            ccb->csio.sense_len -
615                                            sense_returned;
616                                         else
617                                             ccb->csio.sense_resid = 0;
618                                 bzero(&ccb->csio.sense_data,
619                                     sizeof(struct scsi_sense_data));
620                                 bcopy(&srbr->sense[0], &ccb->csio.sense_data,
621                                     min(ccb->csio.sense_len, sense_returned));
622                                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
623                                 // scsi_sense_print(&ccb->csio);
624                         }
625
626                         aac_cam_fix_inquiry(sc, ccb);
627                 }
628         }
629
630         aac_release_command(cm);
631         xpt_done(ccb);
632
633         return;
634 }
635
636 static u_int32_t
637 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
638 {
639         struct aac_fib *fib;
640         struct aac_softc *sc;
641         struct aac_cam *camsc;
642         struct aac_vmioctl *vmi;
643         struct aac_resetbus *rbc;
644         int e;
645
646         camsc = (struct aac_cam *)cam_sim_softc(sim);
647         sc = camsc->inf->aac_sc;
648
649         if (sc == NULL) {
650                 kprintf("aac: Null sc?\n");
651                 return (CAM_REQ_ABORTED);
652         }
653
654         aac_alloc_sync_fib(sc, &fib);
655
656         vmi = (struct aac_vmioctl *)&fib->data[0];
657         bzero(vmi, sizeof(struct aac_vmioctl));
658
659         vmi->Command = VM_Ioctl;
660         vmi->ObjType = FT_DRIVE;
661         vmi->MethId = sc->scsi_method_id;
662         vmi->ObjId = 0;
663         vmi->IoctlCmd = ResetBus;
664
665         rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
666         rbc->BusNumber = camsc->inf->BusNumber;
667
668         e = aac_sync_fib(sc, ContainerCommand, 0, fib,
669             sizeof(struct aac_vmioctl));
670         if (e) {
671                 device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
672                     e);
673                 aac_release_sync_fib(sc);
674                 return (CAM_REQ_ABORTED);
675         }
676
677         aac_release_sync_fib(sc);
678         return (CAM_REQ_CMP);
679 }
680
681 static u_int32_t
682 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
683 {
684         return (CAM_UA_ABORT);
685 }
686
687 static u_int32_t
688 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
689 {
690         return (CAM_UA_TERMIO);
691 }