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
57#include <sys/cdefs.h>
58__FBSDID("$FreeBSD: head/sys/dev/amr/amr_cam.c 163896 2006-11-02 00:54:38Z mjacob $");
59
60#include <sys/param.h>
61#include <sys/systm.h>
62#include <sys/malloc.h>
63#include <sys/kernel.h>
64
65#include <sys/bio.h>
66#include <sys/bus.h>
67#include <sys/conf.h>
68#include <sys/stat.h>
69
70#include <cam/cam.h>
71#include <cam/cam_ccb.h>
72#include <cam/cam_sim.h>
73#include <cam/cam_xpt.h>
74#include <cam/cam_xpt_sim.h>
75#include <cam/cam_debug.h>
76#include <cam/scsi/scsi_all.h>
77#include <cam/scsi/scsi_message.h>
78
79#include <machine/resource.h>
80#include <machine/bus.h>
81
82#include <dev/amr/amrreg.h>
83#include <dev/amr/amrvar.h>
84
85static void amr_cam_action(struct cam_sim *sim, union ccb *ccb);
86static void amr_cam_poll(struct cam_sim *sim);
87static void amr_cam_complete(struct amr_command *ac);
88static void amr_cam_complete_extcdb(struct amr_command *ac);
89
90
91/********************************************************************************
92 * Enqueue/dequeue functions
93 */
94static __inline void
95amr_enqueue_ccb(struct amr_softc *sc, union ccb *ccb)
96{
97
98 TAILQ_INSERT_TAIL(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
99}
100
101static __inline void
102amr_requeue_ccb(struct amr_softc *sc, union ccb *ccb)
103{
104
105 TAILQ_INSERT_HEAD(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
106}
107
108static __inline union ccb *
109amr_dequeue_ccb(struct amr_softc *sc)
110{
111 union ccb *ccb;
112
113 if ((ccb = (union ccb *)TAILQ_FIRST(&sc->amr_cam_ccbq)) != NULL)
114 TAILQ_REMOVE(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
115 return(ccb);
116}
117
118/********************************************************************************
119 * Attach our 'real' SCSI channels to CAM
120 */
121int
122amr_cam_attach(struct amr_softc *sc)
123{
124 struct cam_devq *devq;
125 int chn;
126
127 /* initialise the ccb queue */
128 TAILQ_INIT(&sc->amr_cam_ccbq);
129
130 /*
131 * Allocate a devq for all our channels combined. This should
132 * allow for the maximum number of SCSI commands we will accept
133 * at one time. Save the pointer in the softc so we can find it later
134 * during detach.
135 */
136 if ((devq = cam_simq_alloc(AMR_MAX_SCSI_CMDS)) == NULL)
137 return(ENOMEM);
138 sc->amr_cam_devq = devq;
139
140 /*
141 * Iterate over our channels, registering them with CAM
142 */
143 for (chn = 0; chn < sc->amr_maxchan; chn++) {
144
145 /* allocate a sim */
146 if ((sc->amr_cam_sim[chn] = cam_sim_alloc(amr_cam_action,
147 amr_cam_poll,
148 "amr",
149 sc,
150 device_get_unit(sc->amr_dev),
151 1,
152 AMR_MAX_SCSI_CMDS,
153 devq)) == NULL) {
154 cam_simq_free(devq);
155 device_printf(sc->amr_dev, "CAM SIM attach failed\n");
156 return(ENOMEM);
157 }
158
159 /* register the bus ID so we can get it later */
160 if (xpt_bus_register(sc->amr_cam_sim[chn], chn)) {
161 device_printf(sc->amr_dev, "CAM XPT bus registration failed\n");
162 return(ENXIO);
163 }
164 }
165 /*
166 * XXX we should scan the config and work out which devices are actually
167 * protected.
168 */
169 return(0);
170}
171
172/********************************************************************************
173 * Disconnect ourselves from CAM
174 */
175void
176amr_cam_detach(struct amr_softc *sc)
177{
178 int chn;
179
180 for (chn = 0; chn < sc->amr_maxchan; chn++) {
181
182 /*
183 * If a sim was allocated for this channel, free it
184 */
185 if (sc->amr_cam_sim[chn] != NULL) {
186 xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn]));
187 cam_sim_free(sc->amr_cam_sim[chn], FALSE);
188 }
189 }
190
191 /* Now free the devq */
192 if (sc->amr_cam_devq != NULL)
193 cam_simq_free(sc->amr_cam_devq);
194}
195
196/********************************************************************************
197 ********************************************************************************
198 CAM passthrough interface
199 ********************************************************************************
200 ********************************************************************************/
201
202/********************************************************************************
203 * Handle a request for action from CAM
204 */
205static void
206amr_cam_action(struct cam_sim *sim, union ccb *ccb)
207{
208 struct amr_softc *sc = cam_sim_softc(sim);
209
210 switch(ccb->ccb_h.func_code) {
211
212 /*
213 * Perform SCSI I/O to a physical device.
214 */
215 case XPT_SCSI_IO:
216 {
217 struct ccb_hdr *ccbh = &ccb->ccb_h;
218 struct ccb_scsiio *csio = &ccb->csio;
219
220 /* Validate the CCB */
221 ccbh->status = CAM_REQ_INPROG;
222
223 /* check the CDB length */
224 if (csio->cdb_len > AMR_MAX_EXTCDB_LEN)
225 ccbh->status = CAM_REQ_CMP_ERR;
226
227 if ((csio->cdb_len > AMR_MAX_CDB_LEN) && (sc->support_ext_cdb == 0 ))
228 ccbh->status = CAM_REQ_CMP_ERR;
229
230 /* check that the CDB pointer is not to a physical address */
231 if ((ccbh->flags & CAM_CDB_POINTER) && (ccbh->flags & CAM_CDB_PHYS))
232 ccbh->status = CAM_REQ_CMP_ERR;
233
234 /* if there is data transfer, it must be to/from a virtual address */
235 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
236 if (ccbh->flags & CAM_DATA_PHYS) /* we can't map it */
237 ccbh->status = CAM_REQ_CMP_ERR;
238 if (ccbh->flags & CAM_SCATTER_VALID) /* we want to do the s/g setup */
239 ccbh->status = CAM_REQ_CMP_ERR;
240 }
241
242 /*
243 * If the command is to a LUN other than 0, fail it.
244 * This is probably incorrect, but during testing the firmware did not
245 * seem to respect the LUN field, and thus devices appear echoed.
246 */
247 if (csio->ccb_h.target_lun != 0)
248 ccbh->status = CAM_REQ_CMP_ERR;
249
250 /* if we're happy with the request, queue it for attention */
251 if (ccbh->status == CAM_REQ_INPROG) {
252
253 /* save the channel number in the ccb */
254 csio->ccb_h.sim_priv.entries[0].field = cam_sim_bus(sim);
255
256 mtx_lock(&sc->amr_list_lock);
257 amr_enqueue_ccb(sc, ccb);
258 amr_startio(sc);
259 mtx_unlock(&sc->amr_list_lock);
260 return;
261 }
262 break;
263 }
264
265 case XPT_CALC_GEOMETRY:
266 {
267 cam_calc_geometry(&ccb->ccg, /*extended*/1);
268 break;
269 }
270
271 /*
272 * Return path stats. Some of these should probably be
273 * amended.
274 */
275 case XPT_PATH_INQ:
276 {
277 struct ccb_pathinq *cpi = & ccb->cpi;
278
279 debug(3, "XPT_PATH_INQ");
280 cpi->version_num = 1; /* XXX??? */
281 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
282 cpi->target_sprt = 0;
283 cpi->hba_misc = PIM_NOBUSRESET;
284 cpi->hba_eng_cnt = 0;
285 cpi->max_target = AMR_MAX_TARGETS;
286 cpi->max_lun = 0 /* AMR_MAX_LUNS*/;
287 cpi->initiator_id = 7; /* XXX variable? */
288 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
289 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
290 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
291 cpi->unit_number = cam_sim_unit(sim);
292 cpi->bus_id = cam_sim_bus(sim);
293 cpi->base_transfer_speed = 132 * 1024; /* XXX get from controller? */
294 cpi->transport = XPORT_SPI;
295 cpi->transport_version = 2;
296 cpi->protocol = PROTO_SCSI;
297 cpi->protocol_version = SCSI_REV_2;
298 cpi->ccb_h.status = CAM_REQ_CMP;
299
300 break;
301 }
302
303 case XPT_RESET_BUS:
304 {
305 struct ccb_pathinq *cpi = & ccb->cpi;
306
307 debug(1, "XPT_RESET_BUS");
308 cpi->ccb_h.status = CAM_REQ_CMP;
309 break;
310 }
311
312 case XPT_RESET_DEV:
313 {
314 debug(1, "XPT_RESET_DEV");
315 ccb->ccb_h.status = CAM_REQ_CMP;
316 break;
317 }
318
319 case XPT_GET_TRAN_SETTINGS:
320 {
321 struct ccb_trans_settings *cts = &(ccb->cts);
322
323 debug(3, "XPT_GET_TRAN_SETTINGS");
324
325 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
326 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
327
328 cts->protocol = PROTO_SCSI;
329 cts->protocol_version = SCSI_REV_2;
330 cts->transport = XPORT_SPI;
331 cts->transport_version = 2;
332
333 if (cts->type == CTS_TYPE_USER_SETTINGS) {
334 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
335 break;
336 }
337
338 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
339 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT;
340 spi->sync_period = 6; /* 40MHz how wide is this bus? */
341 spi->sync_offset = 31; /* How to extract this from board? */
342
343 spi->valid = CTS_SPI_VALID_SYNC_RATE
344 | CTS_SPI_VALID_SYNC_OFFSET
345 | CTS_SPI_VALID_BUS_WIDTH
346 | CTS_SPI_VALID_DISC;
347 scsi->valid = CTS_SCSI_VALID_TQ;
348 ccb->ccb_h.status = CAM_REQ_CMP;
349 break;
350 }
351
352 case XPT_SET_TRAN_SETTINGS:
353 debug(3, "XPT_SET_TRAN_SETTINGS");
354 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
355 break;
356
357
358 /*
359 * Reject anything else as unsupported.
360 */
361 default:
362 /* we can't do this */
363 ccb->ccb_h.status = CAM_REQ_INVALID;
364 break;
365 }
366 xpt_done(ccb);
367}
368
369/********************************************************************************
370 * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI command.
371 */
372int
373amr_cam_command(struct amr_softc *sc, struct amr_command **acp)
374{
375 struct amr_command *ac;
376 struct amr_passthrough *ap;
377 struct amr_ext_passthrough *aep;
378 struct ccb_scsiio *csio;
379 int bus, target, error;
380
381 error = 0;
382 ac = NULL;
383 ap = NULL;
384 aep = NULL;
385
386 /* check to see if there is a ccb for us to work with */
387 if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL)
388 goto out;
389
390 /* get bus/target, XXX validate against protected devices? */
391 bus = csio->ccb_h.sim_priv.entries[0].field;
392 target = csio->ccb_h.target_id;
393
394 /*
395 * Build a passthrough command.
396 */
397
398 /* construct passthrough */
399 if (sc->support_ext_cdb ) {
400 if ((aep = malloc(sizeof(*aep), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
401 error = ENOMEM;
402 goto out;
403 }
404 aep->ap_timeout = 2;
405 aep->ap_ars = 1;
406 aep->ap_request_sense_length = 14;
407 aep->ap_islogical = 0;
408 aep->ap_channel = bus;
409 aep->ap_scsi_id = target;
410 aep->ap_logical_drive_no = csio->ccb_h.target_lun;
411 aep->ap_cdb_length = csio->cdb_len;
412 aep->ap_data_transfer_length = csio->dxfer_len;
413 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
414 bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len);
415 } else {
416 bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb, csio->cdb_len);
417 }
418 /* we leave the data s/g list and s/g count to the map routine later */
419
420 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0], aep->ap_cdb_length, csio->dxfer_len,
421 aep->ap_channel, aep->ap_scsi_id, aep->ap_logical_drive_no);
422
423 } else {
424 if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
425 error = ENOMEM;
426 goto out;
427 }
428 ap->ap_timeout = 0;
429 ap->ap_ars = 1;
430 ap->ap_request_sense_length = 14;
431 ap->ap_islogical = 0;
432 ap->ap_channel = bus;
433 ap->ap_scsi_id = target;
434 ap->ap_logical_drive_no = csio->ccb_h.target_lun;
435 ap->ap_cdb_length = csio->cdb_len;
436 ap->ap_data_transfer_length = csio->dxfer_len;
437 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
438 bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len);
439 } else {
440 bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb, csio->cdb_len);
441 }
442 /* we leave the data s/g list and s/g count to the map routine later */
443
444 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0], ap->ap_cdb_length, csio->dxfer_len,
445 ap->ap_channel, ap->ap_scsi_id, ap->ap_logical_drive_no);
446 }
447
448 /* construct command */
449 if ((ac = amr_alloccmd(sc)) == NULL) {
450 error = ENOMEM;
451 goto out;
452 }
453
454 ac->ac_flags |= AMR_CMD_DATAOUT | AMR_CMD_DATAIN;
455
456 ac->ac_ccb_data = csio->data_ptr;
457 ac->ac_ccb_length = csio->dxfer_len;
458 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
459 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
460 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
461 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
462
463 ac->ac_private = csio;
464 if ( sc->support_ext_cdb ) {
465 ac->ac_data = aep;
466 ac->ac_length = sizeof(*aep);
467 ac->ac_complete = amr_cam_complete_extcdb;
468 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS;
469 if (AMR_IS_SG64(sc))
470 ac->ac_flags |= AMR_CMD_SG64;
471 } else {
472 ac->ac_data = ap;
473 ac->ac_length = sizeof(*ap);
474 ac->ac_complete = amr_cam_complete;
475 if (AMR_IS_SG64(sc)) {
476 ac->ac_mailbox.mb_command = AMR_CMD_PASS_64;
477 ac->ac_flags |= AMR_CMD_SG64;
478 } else
479 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
480 }
481
482out:
483 if (error != 0) {
484 if (ac != NULL)
485 amr_releasecmd(ac);
486 if (ap != NULL)
487 free(ap, M_DEVBUF);
488 if (aep != NULL)
489 free(aep, M_DEVBUF);
490 if (csio != NULL) /* put it back and try again later */
491 amr_requeue_ccb(sc, (union ccb *)csio);
492 }
493 *acp = ac;
494 return(error);
495}
496
497/********************************************************************************
498 * Check for interrupt status
499 */
500static void
501amr_cam_poll(struct cam_sim *sim)
502{
503
504 amr_done(cam_sim_softc(sim));
505}
506
507 /********************************************************************************
508 * Handle completion of a command submitted via CAM.
509 */
510static void
511amr_cam_complete(struct amr_command *ac)
512{
513 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
514 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private;
515 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr;
516
517 /* XXX note that we're ignoring ac->ac_status - good idea? */
518
519 debug(1, "status 0x%x AP scsi_status 0x%x", ac->ac_status, ap->ap_scsi_status);
520
521 /*
522 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks.
523 *
524 * If the configuration provides a mechanism to mark a disk a "not managed", we
525 * could add handling for that to allow disks to be selectively visible.
526 */
527
528 if ((ap->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) {
529 bzero(csio->data_ptr, csio->dxfer_len);
530 if (ap->ap_scsi_status == 0xf0) {
531 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
532 } else {
533 csio->ccb_h.status = CAM_DEV_NOT_THERE;
534 }
535 } else {
536
537 /* handle passthrough SCSI status */
538 switch(ap->ap_scsi_status) {
539 case 0: /* completed OK */
540 csio->ccb_h.status = CAM_REQ_CMP;
541 break;
542
543 case 0x02:
544 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
545 csio->scsi_status = SCSI_STATUS_CHECK_COND;
546 bcopy(ap->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN);
547 csio->sense_len = AMR_MAX_REQ_SENSE_LEN;
548 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
549 break;
550
551 case 0x08:
552 csio->ccb_h.status = CAM_SCSI_BUSY;
553 break;
554
555 case 0xf0:
556 case 0xf4:
557 default:
558 csio->ccb_h.status = CAM_REQ_CMP_ERR;
559 break;
560 }
561 }
562 free(ap, M_DEVBUF);
563 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
564 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " ");
565 xpt_done((union ccb *)csio);
566 amr_releasecmd(ac);
567}
568
569/********************************************************************************
570 * Handle completion of a command submitted via CAM.
571 * Completion for extended cdb
572 */
573static void
574amr_cam_complete_extcdb(struct amr_command *ac)
575{
576 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
577 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private;
578 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr;
579
580 /* XXX note that we're ignoring ac->ac_status - good idea? */
581
582 debug(1, "status 0x%x AEP scsi_status 0x%x", ac->ac_status, aep->ap_scsi_status);
583
584 /*
585 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks.
586 *
587 * If the configuration provides a mechanism to mark a disk a "not managed", we
588 * could add handling for that to allow disks to be selectively visible.
589 */
590
591 if ((aep->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) {
592 bzero(csio->data_ptr, csio->dxfer_len);
593 if (aep->ap_scsi_status == 0xf0) {
594 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
595 } else {
596 csio->ccb_h.status = CAM_DEV_NOT_THERE;
597 }
598 } else {
599
600 /* handle passthrough SCSI status */
601 switch(aep->ap_scsi_status) {
602 case 0: /* completed OK */
603 csio->ccb_h.status = CAM_REQ_CMP;
604 break;
605
606 case 0x02:
607 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
608 csio->scsi_status = SCSI_STATUS_CHECK_COND;
609 bcopy(aep->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN);
610 csio->sense_len = AMR_MAX_REQ_SENSE_LEN;
611 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
612 break;
613
614 case 0x08:
615 csio->ccb_h.status = CAM_SCSI_BUSY;
616 break;
617
618 case 0xf0:
619 case 0xf4:
620 default:
621 csio->ccb_h.status = CAM_REQ_CMP_ERR;
622 break;
623 }
624 }
625 free(aep, M_DEVBUF);
626 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
627 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " ");
628 xpt_done((union ccb *)csio);
629 amr_releasecmd(ac);
630}
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
57#include <sys/cdefs.h>
58__FBSDID("$FreeBSD: head/sys/dev/amr/amr_cam.c 163896 2006-11-02 00:54:38Z mjacob $");
59
60#include <sys/param.h>
61#include <sys/systm.h>
62#include <sys/malloc.h>
63#include <sys/kernel.h>
64
65#include <sys/bio.h>
66#include <sys/bus.h>
67#include <sys/conf.h>
68#include <sys/stat.h>
69
70#include <cam/cam.h>
71#include <cam/cam_ccb.h>
72#include <cam/cam_sim.h>
73#include <cam/cam_xpt.h>
74#include <cam/cam_xpt_sim.h>
75#include <cam/cam_debug.h>
76#include <cam/scsi/scsi_all.h>
77#include <cam/scsi/scsi_message.h>
78
79#include <machine/resource.h>
80#include <machine/bus.h>
81
82#include <dev/amr/amrreg.h>
83#include <dev/amr/amrvar.h>
84
85static void amr_cam_action(struct cam_sim *sim, union ccb *ccb);
86static void amr_cam_poll(struct cam_sim *sim);
87static void amr_cam_complete(struct amr_command *ac);
88static void amr_cam_complete_extcdb(struct amr_command *ac);
89
90
91/********************************************************************************
92 * Enqueue/dequeue functions
93 */
94static __inline void
95amr_enqueue_ccb(struct amr_softc *sc, union ccb *ccb)
96{
97
98 TAILQ_INSERT_TAIL(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
99}
100
101static __inline void
102amr_requeue_ccb(struct amr_softc *sc, union ccb *ccb)
103{
104
105 TAILQ_INSERT_HEAD(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
106}
107
108static __inline union ccb *
109amr_dequeue_ccb(struct amr_softc *sc)
110{
111 union ccb *ccb;
112
113 if ((ccb = (union ccb *)TAILQ_FIRST(&sc->amr_cam_ccbq)) != NULL)
114 TAILQ_REMOVE(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe);
115 return(ccb);
116}
117
118/********************************************************************************
119 * Attach our 'real' SCSI channels to CAM
120 */
121int
122amr_cam_attach(struct amr_softc *sc)
123{
124 struct cam_devq *devq;
125 int chn;
126
127 /* initialise the ccb queue */
128 TAILQ_INIT(&sc->amr_cam_ccbq);
129
130 /*
131 * Allocate a devq for all our channels combined. This should
132 * allow for the maximum number of SCSI commands we will accept
133 * at one time. Save the pointer in the softc so we can find it later
134 * during detach.
135 */
136 if ((devq = cam_simq_alloc(AMR_MAX_SCSI_CMDS)) == NULL)
137 return(ENOMEM);
138 sc->amr_cam_devq = devq;
139
140 /*
141 * Iterate over our channels, registering them with CAM
142 */
143 for (chn = 0; chn < sc->amr_maxchan; chn++) {
144
145 /* allocate a sim */
146 if ((sc->amr_cam_sim[chn] = cam_sim_alloc(amr_cam_action,
147 amr_cam_poll,
148 "amr",
149 sc,
150 device_get_unit(sc->amr_dev),
151 1,
152 AMR_MAX_SCSI_CMDS,
153 devq)) == NULL) {
154 cam_simq_free(devq);
155 device_printf(sc->amr_dev, "CAM SIM attach failed\n");
156 return(ENOMEM);
157 }
158
159 /* register the bus ID so we can get it later */
160 if (xpt_bus_register(sc->amr_cam_sim[chn], chn)) {
161 device_printf(sc->amr_dev, "CAM XPT bus registration failed\n");
162 return(ENXIO);
163 }
164 }
165 /*
166 * XXX we should scan the config and work out which devices are actually
167 * protected.
168 */
169 return(0);
170}
171
172/********************************************************************************
173 * Disconnect ourselves from CAM
174 */
175void
176amr_cam_detach(struct amr_softc *sc)
177{
178 int chn;
179
180 for (chn = 0; chn < sc->amr_maxchan; chn++) {
181
182 /*
183 * If a sim was allocated for this channel, free it
184 */
185 if (sc->amr_cam_sim[chn] != NULL) {
186 xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn]));
187 cam_sim_free(sc->amr_cam_sim[chn], FALSE);
188 }
189 }
190
191 /* Now free the devq */
192 if (sc->amr_cam_devq != NULL)
193 cam_simq_free(sc->amr_cam_devq);
194}
195
196/********************************************************************************
197 ********************************************************************************
198 CAM passthrough interface
199 ********************************************************************************
200 ********************************************************************************/
201
202/********************************************************************************
203 * Handle a request for action from CAM
204 */
205static void
206amr_cam_action(struct cam_sim *sim, union ccb *ccb)
207{
208 struct amr_softc *sc = cam_sim_softc(sim);
209
210 switch(ccb->ccb_h.func_code) {
211
212 /*
213 * Perform SCSI I/O to a physical device.
214 */
215 case XPT_SCSI_IO:
216 {
217 struct ccb_hdr *ccbh = &ccb->ccb_h;
218 struct ccb_scsiio *csio = &ccb->csio;
219
220 /* Validate the CCB */
221 ccbh->status = CAM_REQ_INPROG;
222
223 /* check the CDB length */
224 if (csio->cdb_len > AMR_MAX_EXTCDB_LEN)
225 ccbh->status = CAM_REQ_CMP_ERR;
226
227 if ((csio->cdb_len > AMR_MAX_CDB_LEN) && (sc->support_ext_cdb == 0 ))
228 ccbh->status = CAM_REQ_CMP_ERR;
229
230 /* check that the CDB pointer is not to a physical address */
231 if ((ccbh->flags & CAM_CDB_POINTER) && (ccbh->flags & CAM_CDB_PHYS))
232 ccbh->status = CAM_REQ_CMP_ERR;
233
234 /* if there is data transfer, it must be to/from a virtual address */
235 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
236 if (ccbh->flags & CAM_DATA_PHYS) /* we can't map it */
237 ccbh->status = CAM_REQ_CMP_ERR;
238 if (ccbh->flags & CAM_SCATTER_VALID) /* we want to do the s/g setup */
239 ccbh->status = CAM_REQ_CMP_ERR;
240 }
241
242 /*
243 * If the command is to a LUN other than 0, fail it.
244 * This is probably incorrect, but during testing the firmware did not
245 * seem to respect the LUN field, and thus devices appear echoed.
246 */
247 if (csio->ccb_h.target_lun != 0)
248 ccbh->status = CAM_REQ_CMP_ERR;
249
250 /* if we're happy with the request, queue it for attention */
251 if (ccbh->status == CAM_REQ_INPROG) {
252
253 /* save the channel number in the ccb */
254 csio->ccb_h.sim_priv.entries[0].field = cam_sim_bus(sim);
255
256 mtx_lock(&sc->amr_list_lock);
257 amr_enqueue_ccb(sc, ccb);
258 amr_startio(sc);
259 mtx_unlock(&sc->amr_list_lock);
260 return;
261 }
262 break;
263 }
264
265 case XPT_CALC_GEOMETRY:
266 {
267 cam_calc_geometry(&ccb->ccg, /*extended*/1);
268 break;
269 }
270
271 /*
272 * Return path stats. Some of these should probably be
273 * amended.
274 */
275 case XPT_PATH_INQ:
276 {
277 struct ccb_pathinq *cpi = & ccb->cpi;
278
279 debug(3, "XPT_PATH_INQ");
280 cpi->version_num = 1; /* XXX??? */
281 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
282 cpi->target_sprt = 0;
283 cpi->hba_misc = PIM_NOBUSRESET;
284 cpi->hba_eng_cnt = 0;
285 cpi->max_target = AMR_MAX_TARGETS;
286 cpi->max_lun = 0 /* AMR_MAX_LUNS*/;
287 cpi->initiator_id = 7; /* XXX variable? */
288 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
289 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
290 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
291 cpi->unit_number = cam_sim_unit(sim);
292 cpi->bus_id = cam_sim_bus(sim);
293 cpi->base_transfer_speed = 132 * 1024; /* XXX get from controller? */
294 cpi->transport = XPORT_SPI;
295 cpi->transport_version = 2;
296 cpi->protocol = PROTO_SCSI;
297 cpi->protocol_version = SCSI_REV_2;
298 cpi->ccb_h.status = CAM_REQ_CMP;
299
300 break;
301 }
302
303 case XPT_RESET_BUS:
304 {
305 struct ccb_pathinq *cpi = & ccb->cpi;
306
307 debug(1, "XPT_RESET_BUS");
308 cpi->ccb_h.status = CAM_REQ_CMP;
309 break;
310 }
311
312 case XPT_RESET_DEV:
313 {
314 debug(1, "XPT_RESET_DEV");
315 ccb->ccb_h.status = CAM_REQ_CMP;
316 break;
317 }
318
319 case XPT_GET_TRAN_SETTINGS:
320 {
321 struct ccb_trans_settings *cts = &(ccb->cts);
322
323 debug(3, "XPT_GET_TRAN_SETTINGS");
324
325 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
326 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
327
328 cts->protocol = PROTO_SCSI;
329 cts->protocol_version = SCSI_REV_2;
330 cts->transport = XPORT_SPI;
331 cts->transport_version = 2;
332
333 if (cts->type == CTS_TYPE_USER_SETTINGS) {
334 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
335 break;
336 }
337
338 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
339 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT;
340 spi->sync_period = 6; /* 40MHz how wide is this bus? */
341 spi->sync_offset = 31; /* How to extract this from board? */
342
343 spi->valid = CTS_SPI_VALID_SYNC_RATE
344 | CTS_SPI_VALID_SYNC_OFFSET
345 | CTS_SPI_VALID_BUS_WIDTH
346 | CTS_SPI_VALID_DISC;
347 scsi->valid = CTS_SCSI_VALID_TQ;
348 ccb->ccb_h.status = CAM_REQ_CMP;
349 break;
350 }
351
352 case XPT_SET_TRAN_SETTINGS:
353 debug(3, "XPT_SET_TRAN_SETTINGS");
354 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
355 break;
356
357
358 /*
359 * Reject anything else as unsupported.
360 */
361 default:
362 /* we can't do this */
363 ccb->ccb_h.status = CAM_REQ_INVALID;
364 break;
365 }
366 xpt_done(ccb);
367}
368
369/********************************************************************************
370 * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI command.
371 */
372int
373amr_cam_command(struct amr_softc *sc, struct amr_command **acp)
374{
375 struct amr_command *ac;
376 struct amr_passthrough *ap;
377 struct amr_ext_passthrough *aep;
378 struct ccb_scsiio *csio;
379 int bus, target, error;
380
381 error = 0;
382 ac = NULL;
383 ap = NULL;
384 aep = NULL;
385
386 /* check to see if there is a ccb for us to work with */
387 if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL)
388 goto out;
389
390 /* get bus/target, XXX validate against protected devices? */
391 bus = csio->ccb_h.sim_priv.entries[0].field;
392 target = csio->ccb_h.target_id;
393
394 /*
395 * Build a passthrough command.
396 */
397
398 /* construct passthrough */
399 if (sc->support_ext_cdb ) {
400 if ((aep = malloc(sizeof(*aep), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
401 error = ENOMEM;
402 goto out;
403 }
404 aep->ap_timeout = 2;
405 aep->ap_ars = 1;
406 aep->ap_request_sense_length = 14;
407 aep->ap_islogical = 0;
408 aep->ap_channel = bus;
409 aep->ap_scsi_id = target;
410 aep->ap_logical_drive_no = csio->ccb_h.target_lun;
411 aep->ap_cdb_length = csio->cdb_len;
412 aep->ap_data_transfer_length = csio->dxfer_len;
413 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
414 bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len);
415 } else {
416 bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb, csio->cdb_len);
417 }
418 /* we leave the data s/g list and s/g count to the map routine later */
419
420 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0], aep->ap_cdb_length, csio->dxfer_len,
421 aep->ap_channel, aep->ap_scsi_id, aep->ap_logical_drive_no);
422
423 } else {
424 if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
425 error = ENOMEM;
426 goto out;
427 }
428 ap->ap_timeout = 0;
429 ap->ap_ars = 1;
430 ap->ap_request_sense_length = 14;
431 ap->ap_islogical = 0;
432 ap->ap_channel = bus;
433 ap->ap_scsi_id = target;
434 ap->ap_logical_drive_no = csio->ccb_h.target_lun;
435 ap->ap_cdb_length = csio->cdb_len;
436 ap->ap_data_transfer_length = csio->dxfer_len;
437 if (csio->ccb_h.flags & CAM_CDB_POINTER) {
438 bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len);
439 } else {
440 bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb, csio->cdb_len);
441 }
442 /* we leave the data s/g list and s/g count to the map routine later */
443
444 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0], ap->ap_cdb_length, csio->dxfer_len,
445 ap->ap_channel, ap->ap_scsi_id, ap->ap_logical_drive_no);
446 }
447
448 /* construct command */
449 if ((ac = amr_alloccmd(sc)) == NULL) {
450 error = ENOMEM;
451 goto out;
452 }
453
454 ac->ac_flags |= AMR_CMD_DATAOUT | AMR_CMD_DATAIN;
455
456 ac->ac_ccb_data = csio->data_ptr;
457 ac->ac_ccb_length = csio->dxfer_len;
458 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
459 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
460 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
461 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
462
463 ac->ac_private = csio;
464 if ( sc->support_ext_cdb ) {
465 ac->ac_data = aep;
466 ac->ac_length = sizeof(*aep);
467 ac->ac_complete = amr_cam_complete_extcdb;
468 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS;
469 if (AMR_IS_SG64(sc))
470 ac->ac_flags |= AMR_CMD_SG64;
471 } else {
472 ac->ac_data = ap;
473 ac->ac_length = sizeof(*ap);
474 ac->ac_complete = amr_cam_complete;
475 if (AMR_IS_SG64(sc)) {
476 ac->ac_mailbox.mb_command = AMR_CMD_PASS_64;
477 ac->ac_flags |= AMR_CMD_SG64;
478 } else
479 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
480 }
481
482out:
483 if (error != 0) {
484 if (ac != NULL)
485 amr_releasecmd(ac);
486 if (ap != NULL)
487 free(ap, M_DEVBUF);
488 if (aep != NULL)
489 free(aep, M_DEVBUF);
490 if (csio != NULL) /* put it back and try again later */
491 amr_requeue_ccb(sc, (union ccb *)csio);
492 }
493 *acp = ac;
494 return(error);
495}
496
497/********************************************************************************
498 * Check for interrupt status
499 */
500static void
501amr_cam_poll(struct cam_sim *sim)
502{
503
504 amr_done(cam_sim_softc(sim));
505}
506
507 /********************************************************************************
508 * Handle completion of a command submitted via CAM.
509 */
510static void
511amr_cam_complete(struct amr_command *ac)
512{
513 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
514 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private;
515 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr;
516
517 /* XXX note that we're ignoring ac->ac_status - good idea? */
518
519 debug(1, "status 0x%x AP scsi_status 0x%x", ac->ac_status, ap->ap_scsi_status);
520
521 /*
522 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks.
523 *
524 * If the configuration provides a mechanism to mark a disk a "not managed", we
525 * could add handling for that to allow disks to be selectively visible.
526 */
527
528 if ((ap->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) {
529 bzero(csio->data_ptr, csio->dxfer_len);
530 if (ap->ap_scsi_status == 0xf0) {
531 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
532 } else {
533 csio->ccb_h.status = CAM_DEV_NOT_THERE;
534 }
535 } else {
536
537 /* handle passthrough SCSI status */
538 switch(ap->ap_scsi_status) {
539 case 0: /* completed OK */
540 csio->ccb_h.status = CAM_REQ_CMP;
541 break;
542
543 case 0x02:
544 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
545 csio->scsi_status = SCSI_STATUS_CHECK_COND;
546 bcopy(ap->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN);
547 csio->sense_len = AMR_MAX_REQ_SENSE_LEN;
548 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
549 break;
550
551 case 0x08:
552 csio->ccb_h.status = CAM_SCSI_BUSY;
553 break;
554
555 case 0xf0:
556 case 0xf4:
557 default:
558 csio->ccb_h.status = CAM_REQ_CMP_ERR;
559 break;
560 }
561 }
562 free(ap, M_DEVBUF);
563 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
564 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " ");
565 xpt_done((union ccb *)csio);
566 amr_releasecmd(ac);
567}
568
569/********************************************************************************
570 * Handle completion of a command submitted via CAM.
571 * Completion for extended cdb
572 */
573static void
574amr_cam_complete_extcdb(struct amr_command *ac)
575{
576 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
577 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private;
578 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr;
579
580 /* XXX note that we're ignoring ac->ac_status - good idea? */
581
582 debug(1, "status 0x%x AEP scsi_status 0x%x", ac->ac_status, aep->ap_scsi_status);
583
584 /*
585 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks.
586 *
587 * If the configuration provides a mechanism to mark a disk a "not managed", we
588 * could add handling for that to allow disks to be selectively visible.
589 */
590
591 if ((aep->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) {
592 bzero(csio->data_ptr, csio->dxfer_len);
593 if (aep->ap_scsi_status == 0xf0) {
594 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
595 } else {
596 csio->ccb_h.status = CAM_DEV_NOT_THERE;
597 }
598 } else {
599
600 /* handle passthrough SCSI status */
601 switch(aep->ap_scsi_status) {
602 case 0: /* completed OK */
603 csio->ccb_h.status = CAM_REQ_CMP;
604 break;
605
606 case 0x02:
607 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
608 csio->scsi_status = SCSI_STATUS_CHECK_COND;
609 bcopy(aep->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN);
610 csio->sense_len = AMR_MAX_REQ_SENSE_LEN;
611 csio->ccb_h.status |= CAM_AUTOSNS_VALID;
612 break;
613
614 case 0x08:
615 csio->ccb_h.status = CAM_SCSI_BUSY;
616 break;
617
618 case 0xf0:
619 case 0xf4:
620 default:
621 csio->ccb_h.status = CAM_REQ_CMP_ERR;
622 break;
623 }
624 }
625 free(aep, M_DEVBUF);
626 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
627 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " ");
628 xpt_done((union ccb *)csio);
629 amr_releasecmd(ac);
630}