kernel: Add D_MPSAFE to the ops of mfi(4), mrsas(4) and twa(4).
[dragonfly.git] / sys / dev / raid / amr / amr_cam.c
1 /*-
2  * Copyright (c) 2000 Michael Smith
3  * Copyright (c) 2000 BSDi
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *      notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *      notice, this list of conditions and the following disclaimer in the
13  *      documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 /*-
28  * Copyright (c) 2002 Eric Moore
29  * Copyright (c) 2002 LSI Logic Corporation
30  * All rights reserved.
31  *
32  * Redistribution and use in source and binary forms, with or without
33  * modification, are permitted provided that the following conditions
34  * are met:
35  * 1. Redistributions of source code must retain the above copyright
36  *      notice, this list of conditions and the following disclaimer.
37  * 2. Redistributions in binary form must reproduce the above copyright
38  *      notice, this list of conditions and the following disclaimer in the
39  *      documentation and/or other materials provided with the distribution.
40  * 3. The party using or redistributing the source code and binary forms
41  *      agrees to the disclaimer below and the terms and conditions set forth
42  *      herein.
43  *
44  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54  * SUCH DAMAGE.
55  *
56  * $FreeBSD: src/sys/dev/amr/amr_cam.c,v 1.29 2011/11/07 06:44:47 ed Exp $
57  */
58
59 #include <sys/param.h>
60 #include <sys/systm.h>
61 #include <sys/kernel.h>
62 #include <sys/module.h>
63
64 #include <sys/bio.h>
65 #include <sys/bus.h>
66 #include <sys/conf.h>
67 #include <sys/stat.h>
68
69 #include <bus/cam/cam.h>
70 #include <bus/cam/cam_ccb.h>
71 #include <bus/cam/cam_sim.h>
72 #include <bus/cam/cam_xpt.h>
73 #include <bus/cam/cam_xpt_sim.h>
74 #include <bus/cam/cam_debug.h>
75 #include <bus/cam/scsi/scsi_all.h>
76 #include <bus/cam/scsi/scsi_message.h>
77
78 #include <dev/raid/amr/amrreg.h>
79 #include <dev/raid/amr/amrvar.h>
80
81 static int      amr_cam_probe(device_t dev);
82 static int      amr_cam_attach(device_t dev);
83 static int      amr_cam_detach(device_t dev);
84 static void     amr_cam_action(struct cam_sim *sim, union ccb *ccb);
85 static void     amr_cam_poll(struct cam_sim *sim);
86 static void     amr_cam_complete(struct amr_command *ac);
87 static int      amr_cam_command(struct amr_softc *sc, struct amr_command **acp);
88
89 static devclass_t       amr_pass_devclass;
90
91 static device_method_t  amr_pass_methods[] = {
92         DEVMETHOD(device_probe,         amr_cam_probe),
93         DEVMETHOD(device_attach,        amr_cam_attach),
94         DEVMETHOD(device_detach,        amr_cam_detach),
95         DEVMETHOD_END
96 };
97
98 static driver_t amr_pass_driver = {
99         "amrp",
100         amr_pass_methods,
101         0
102 };
103
104 DRIVER_MODULE(amrp, amr, amr_pass_driver, amr_pass_devclass, NULL, NULL);
105 MODULE_VERSION(amrp, 1);
106 MODULE_DEPEND(amrp, amr, 1, 1, 1);
107 MODULE_DEPEND(amrp, cam, 1, 1, 1);
108
109 /***********************************************************************
110  * Enqueue/dequeue functions
111  */
112 static __inline void
113 amr_enqueue_ccb(struct amr_softc *sc, union ccb *ccb)
114 {
115
116         TAILQ_INSERT_TAIL(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
117 }
118
119 static __inline void
120 amr_requeue_ccb(struct amr_softc *sc, union ccb *ccb)
121 {
122
123         TAILQ_INSERT_HEAD(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
124 }
125
126 static __inline union ccb *
127 amr_dequeue_ccb(struct amr_softc *sc)
128 {
129         union ccb       *ccb;
130
131         if ((ccb = (union ccb *)TAILQ_FIRST(&sc->amr_cam_ccbq)) != NULL)
132                 TAILQ_REMOVE(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
133         return(ccb);
134 }
135
136 static int
137 amr_cam_probe(device_t dev)
138 {
139         return (0);
140 }
141
142 /********************************************************************************
143  * Attach our 'real' SCSI channels to CAM
144  */
145 static int
146 amr_cam_attach(device_t dev)
147 {
148         struct amr_softc *sc;
149         struct cam_devq *devq;
150         int chn, error;
151
152         sc = device_get_softc(dev);
153
154         /* initialise the ccb queue */
155         TAILQ_INIT(&sc->amr_cam_ccbq);
156
157         /*
158          * Allocate a devq for all our channels combined.  This should
159          * allow for the maximum number of SCSI commands we will accept
160          * at one time. Save the pointer in the softc so we can find it later
161          * during detach.
162          */
163         if ((devq = cam_simq_alloc(AMR_MAX_SCSI_CMDS)) == NULL)
164                 return(ENOMEM);
165         sc->amr_cam_devq = devq;
166
167         /*
168          * Iterate over our channels, registering them with CAM
169          */
170         for (chn = 0; chn < sc->amr_maxchan; chn++) {
171
172                 /* allocate a sim */
173                 if ((sc->amr_cam_sim[chn] = cam_sim_alloc(amr_cam_action,
174                     amr_cam_poll, "amr", sc, device_get_unit(sc->amr_dev),
175                     &sc->amr_list_lock, 1, AMR_MAX_SCSI_CMDS, devq)) == NULL) {
176                         cam_simq_release(devq);
177                         device_printf(sc->amr_dev, "CAM SIM attach failed\n");
178                         return(ENOMEM);
179                 }
180
181                 /* register the bus ID so we can get it later */
182                 lockmgr(&sc->amr_list_lock, LK_EXCLUSIVE);
183                 error = xpt_bus_register(sc->amr_cam_sim[chn], chn);
184                 lockmgr(&sc->amr_list_lock, LK_RELEASE);
185                 if (error) {
186                         device_printf(sc->amr_dev,
187                             "CAM XPT bus registration failed\n");
188                         return(ENXIO);
189                 }
190         }
191         /*
192          * XXX we should scan the config and work out which devices are
193          * actually protected.
194          */
195         sc->amr_cam_command = amr_cam_command;
196         return(0);
197 }
198
199 /********************************************************************************
200  * Disconnect ourselves from CAM
201  */
202 static int
203 amr_cam_detach(device_t dev)
204 {
205         struct amr_softc *sc;
206         int             chn;
207
208         sc = device_get_softc(dev);
209         lockmgr(&sc->amr_list_lock, LK_EXCLUSIVE);
210         for (chn = 0; chn < sc->amr_maxchan; chn++) {
211                 /*
212                  * If a sim was allocated for this channel, free it
213                  */
214                 if (sc->amr_cam_sim[chn] != NULL) {
215                         xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn]));
216                         cam_sim_free(sc->amr_cam_sim[chn]);
217                 }
218         }
219         lockmgr(&sc->amr_list_lock, LK_RELEASE);
220
221         /* Now free the devq */
222         if (sc->amr_cam_devq != NULL)
223                 cam_simq_release(sc->amr_cam_devq);
224
225         return (0);
226 }
227
228 /***********************************************************************
229  ***********************************************************************
230                         CAM passthrough interface
231  ***********************************************************************
232  ***********************************************************************/
233
234 /***********************************************************************
235  * Handle a request for action from CAM
236  */
237 static void
238 amr_cam_action(struct cam_sim *sim, union ccb *ccb)
239 {
240         struct amr_softc        *sc = cam_sim_softc(sim);
241
242         switch(ccb->ccb_h.func_code) {
243
244         /*
245          * Perform SCSI I/O to a physical device.
246          */
247         case XPT_SCSI_IO:
248         {
249                 struct ccb_hdr          *ccbh = &ccb->ccb_h;
250                 struct ccb_scsiio       *csio = &ccb->csio;
251
252                 /* Validate the CCB */
253                 ccbh->status = CAM_REQ_INPROG;
254
255                 /* check the CDB length */
256                 if (csio->cdb_len > AMR_MAX_EXTCDB_LEN)
257                         ccbh->status = CAM_REQ_INVALID;
258
259                 if ((csio->cdb_len > AMR_MAX_CDB_LEN) &&
260                     (sc->support_ext_cdb == 0))
261                         ccbh->status = CAM_REQ_INVALID;
262
263                 /* check that the CDB pointer is not to a physical address */
264                 if ((ccbh->flags & CAM_CDB_POINTER) &&
265                     (ccbh->flags & CAM_CDB_PHYS))
266                         ccbh->status = CAM_REQ_INVALID;
267                 /*
268                  * if there is data transfer, it must be to/from a virtual
269                  * address
270                  */
271                 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
272                         if (ccbh->flags & CAM_DATA_PHYS)
273                                 /* we can't map it */
274                                 ccbh->status = CAM_REQ_INVALID;
275                         if (ccbh->flags & CAM_SCATTER_VALID)
276                                 /* we want to do the s/g setup */
277                                 ccbh->status = CAM_REQ_INVALID;
278                 }
279
280                 /*
281                  * If the command is to a LUN other than 0, fail it.
282                  * This is probably incorrect, but during testing the
283                  * firmware did not seem to respect the LUN field, and thus
284                  * devices appear echoed.
285                  */
286                 if (csio->ccb_h.target_lun != 0)
287                         ccbh->status = CAM_DEV_NOT_THERE;
288
289                 /* if we're happy with the request, queue it for attention */
290                 if (ccbh->status == CAM_REQ_INPROG) {
291
292                         /* save the channel number in the ccb */
293                         csio->ccb_h.sim_priv.entries[0].field= cam_sim_bus(sim);
294
295                         amr_enqueue_ccb(sc, ccb);
296                         amr_startio(sc);
297                         return;
298                 }
299                 break;
300         }
301
302         case XPT_CALC_GEOMETRY:
303         {
304                 cam_calc_geometry(&ccb->ccg, /*extended*/1);
305                 break;
306         }
307
308         /*
309          * Return path stats.  Some of these should probably be amended.
310          */
311         case XPT_PATH_INQ:
312         {
313                 struct ccb_pathinq        *cpi = & ccb->cpi;
314
315                 debug(3, "XPT_PATH_INQ");
316                 cpi->version_num = 1;              /* XXX??? */
317                 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
318                 cpi->target_sprt = 0;
319                 cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
320                 cpi->hba_eng_cnt = 0;
321                 cpi->max_target = AMR_MAX_TARGETS;
322                 cpi->max_lun = 0 /* AMR_MAX_LUNS*/;
323                 cpi->initiator_id = 7;            /* XXX variable? */
324                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
325                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
326                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
327                 cpi->unit_number = cam_sim_unit(sim);
328                 cpi->bus_id = cam_sim_bus(sim);
329                 cpi->base_transfer_speed = 132 * 1024;  /* XXX */
330                 cpi->transport = XPORT_SPI;
331                 cpi->transport_version = 2;
332                 cpi->protocol = PROTO_SCSI;
333                 cpi->protocol_version = SCSI_REV_2;
334                 cpi->ccb_h.status = CAM_REQ_CMP;
335
336                 break;
337         }
338
339         case XPT_RESET_BUS:
340         {
341                 struct ccb_pathinq      *cpi = & ccb->cpi;
342
343                 debug(1, "XPT_RESET_BUS");
344                 cpi->ccb_h.status = CAM_REQ_CMP;
345                 break;
346         }
347
348         case XPT_RESET_DEV:
349         {
350                 debug(1, "XPT_RESET_DEV");
351                 ccb->ccb_h.status = CAM_REQ_CMP;
352                 break;
353         }
354
355         case XPT_GET_TRAN_SETTINGS:
356         {
357                 struct ccb_trans_settings       *cts = &(ccb->cts);
358
359                 debug(3, "XPT_GET_TRAN_SETTINGS");
360
361                 struct ccb_trans_settings_scsi *scsi;
362                 struct ccb_trans_settings_spi *spi;
363
364                 scsi = &cts->proto_specific.scsi;
365                 spi = &cts->xport_specific.spi;
366
367                 cts->protocol = PROTO_SCSI;
368                 cts->protocol_version = SCSI_REV_2;
369                 cts->transport = XPORT_SPI;
370                 cts->transport_version = 2;
371
372                 if (cts->type == CTS_TYPE_USER_SETTINGS) {
373                         ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
374                         break;
375                 }
376
377                 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
378                 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT;
379                 spi->sync_period = 6;   /* 40MHz how wide is this bus? */
380                 spi->sync_offset = 31;  /* How to extract this from board? */
381
382                 spi->valid = CTS_SPI_VALID_SYNC_RATE
383                         | CTS_SPI_VALID_SYNC_OFFSET
384                         | CTS_SPI_VALID_BUS_WIDTH
385                         | CTS_SPI_VALID_DISC;
386                 scsi->valid = CTS_SCSI_VALID_TQ;
387                 ccb->ccb_h.status = CAM_REQ_CMP;
388                 break;
389         }
390
391         case XPT_SET_TRAN_SETTINGS:
392                 debug(3, "XPT_SET_TRAN_SETTINGS");
393                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
394                 break;
395
396
397         /*
398          * Reject anything else as unsupported.
399          */
400         default:
401                 /* we can't do this */
402                 ccb->ccb_h.status = CAM_REQ_INVALID;
403                 break;
404         }
405
406         KKASSERT(lockstatus(&sc->amr_list_lock, curthread) != 0);
407         xpt_done(ccb);
408 }
409
410 /***********************************************************************
411  * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI
412  * command.
413  */
414 static int
415 amr_cam_command(struct amr_softc *sc, struct amr_command **acp)
416 {
417         struct amr_command              *ac;
418         struct amr_passthrough          *ap;
419         struct amr_ext_passthrough      *aep;
420         struct ccb_scsiio               *csio;
421         int                             bus, target, error;
422
423         error = 0;
424         ac = NULL;
425         ap = NULL;
426         aep = NULL;
427
428         /* check to see if there is a ccb for us to work with */
429         if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL)
430                 goto out;
431
432         /* get bus/target, XXX validate against protected devices? */
433         bus = csio->ccb_h.sim_priv.entries[0].field;
434         target = csio->ccb_h.target_id;
435
436         /*
437          * Build a passthrough command.
438          */
439
440         /* construct command */
441         if ((ac = amr_alloccmd(sc)) == NULL) {
442                 error = ENOMEM;
443                 goto out;
444         }
445
446         /* construct passthrough */
447         if (sc->support_ext_cdb ) {
448                 aep = &ac->ac_ccb->ccb_epthru;
449                 aep->ap_timeout = 2;
450                 aep->ap_ars = 1;
451                 aep->ap_request_sense_length = 14;
452                 aep->ap_islogical = 0;
453                 aep->ap_channel = bus;
454                 aep->ap_scsi_id = target;
455                 aep->ap_logical_drive_no = csio->ccb_h.target_lun;
456                 aep->ap_cdb_length = csio->cdb_len;
457                 aep->ap_data_transfer_length = csio->dxfer_len;
458                 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
459                         bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len);
460                 } else {
461                         bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb,
462                             csio->cdb_len);
463                 }
464                 /*
465                  * we leave the data s/g list and s/g count to the map routine
466                  * later
467                  */
468
469                 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0],
470                     aep->ap_cdb_length, csio->dxfer_len, aep->ap_channel,
471                     aep->ap_scsi_id, aep->ap_logical_drive_no);
472
473         } else {
474                 ap = &ac->ac_ccb->ccb_pthru;
475                 ap->ap_timeout = 0;
476                 ap->ap_ars = 1;
477                 ap->ap_request_sense_length = 14;
478                 ap->ap_islogical = 0;
479                 ap->ap_channel = bus;
480                 ap->ap_scsi_id = target;
481                 ap->ap_logical_drive_no = csio->ccb_h.target_lun;
482                 ap->ap_cdb_length = csio->cdb_len;
483                 ap->ap_data_transfer_length = csio->dxfer_len;
484                 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
485                         bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len);
486                 } else {
487                         bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb,
488                             csio->cdb_len);
489                 }
490                 /*
491                  * we leave the data s/g list and s/g count to the map routine
492                  * later
493                  */
494
495                 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0],
496                     ap->ap_cdb_length, csio->dxfer_len, ap->ap_channel,
497                     ap->ap_scsi_id, ap->ap_logical_drive_no);
498         }
499
500         ac->ac_flags |= AMR_CMD_CCB;
501
502         ac->ac_data = csio->data_ptr;
503         ac->ac_length = csio->dxfer_len;
504         if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
505                 ac->ac_flags |= AMR_CMD_DATAIN;
506         if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
507                 ac->ac_flags |= AMR_CMD_DATAOUT;
508
509         ac->ac_private = csio;
510         ac->ac_complete = amr_cam_complete;
511         if ( sc->support_ext_cdb ) {
512                 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS;
513         } else {
514                 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
515         }
516
517 out:
518         if (error != 0) {
519                 if (ac != NULL)
520                         amr_releasecmd(ac);
521                 if (csio != NULL)
522                         /* put it back and try again later */
523                         amr_requeue_ccb(sc, (union ccb *)csio);
524         }
525         *acp = ac;
526         return(error);
527 }
528
529 /***********************************************************************
530  * Check for interrupt status
531  */
532 static void
533 amr_cam_poll(struct cam_sim *sim)
534 {
535
536         amr_done(cam_sim_softc(sim));
537 }
538
539  /**********************************************************************
540  * Handle completion of a command submitted via CAM.
541  */
542 static void
543 amr_cam_complete(struct amr_command *ac)
544 {
545         struct amr_passthrough          *ap;
546         struct amr_ext_passthrough      *aep;
547         struct ccb_scsiio               *csio;
548         struct scsi_inquiry_data        *inq;
549         int                             scsi_status, cdb0;
550 #ifdef AMR_DEBUG
551         char                            hexstr[HEX_NCPYLEN(16)];
552 #endif
553
554         ap = &ac->ac_ccb->ccb_pthru;
555         aep = &ac->ac_ccb->ccb_epthru;
556         csio = (struct ccb_scsiio *)ac->ac_private;
557         inq = (struct scsi_inquiry_data *)csio->data_ptr;
558
559         if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS)
560                 scsi_status = aep->ap_scsi_status;
561         else
562                 scsi_status = ap->ap_scsi_status;
563         debug(1, "status 0x%x  AP scsi_status 0x%x", ac->ac_status,
564             scsi_status);
565
566         /* Make sure the status is sane */
567         if ((ac->ac_status != AMR_STATUS_SUCCESS) && (scsi_status == 0)) {
568                 csio->ccb_h.status = CAM_REQ_CMP_ERR;
569                 goto out;
570         }
571
572         /*
573          * Hide disks from CAM so that they're not picked up and treated as
574          * 'normal' disks.
575          *
576          * If the configuration provides a mechanism to mark a disk a "not
577          * managed", we could add handling for that to allow disks to be
578          * selectively visible.
579          */
580
581         /* handle passthrough SCSI status */
582         switch(scsi_status) {
583         case 0: /* completed OK */
584                 if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS)
585                         cdb0 = aep->ap_cdb[0];
586                 else
587                         cdb0 = ap->ap_cdb[0];
588                 if ((cdb0 == INQUIRY) && (SID_TYPE(inq) == T_DIRECT))
589                         inq->device = (inq->device & 0xe0) | T_NODEVICE;
590                 csio->ccb_h.status = CAM_REQ_CMP;
591                 break;
592
593         case 0x02:
594                 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
595                 csio->scsi_status = SCSI_STATUS_CHECK_COND;
596                 if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS)
597                         bcopy(aep->ap_request_sense_area, &csio->sense_data,
598                             AMR_MAX_REQ_SENSE_LEN);
599                 else
600                         bcopy(ap->ap_request_sense_area, &csio->sense_data,
601                             AMR_MAX_REQ_SENSE_LEN);
602                 csio->sense_len = AMR_MAX_REQ_SENSE_LEN;
603                 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
604                 break;
605
606         case 0x08:
607                 csio->ccb_h.status = CAM_SCSI_BUSY;
608                 break;
609
610         case 0xf0:
611         case 0xf4:
612         default:
613                 /*
614                  * Non-zero LUNs are already filtered, so there's no need
615                  * to return CAM_DEV_NOT_THERE.
616                  */
617                 csio->ccb_h.status = CAM_SEL_TIMEOUT;
618                 break;
619         }
620
621 out:
622         if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
623                 debug(2, "%s\n", hexncpy(csio->data_ptr, imin(csio->dxfer_len, 16),
624                         hexstr, HEX_NCPYLEN(imin(csio->dxfer_len, 16)), " "));
625
626         lockmgr(&ac->ac_sc->amr_list_lock, LK_EXCLUSIVE);
627         xpt_done((union ccb *)csio);
628         amr_releasecmd(ac);
629         lockmgr(&ac->ac_sc->amr_list_lock, LK_RELEASE);
630 }