xref: /freebsd/sys/dev/aacraid/aacraid_cam.c (revision 9768746b)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2002-2010 Adaptec, Inc.
5  * Copyright (c) 2010-2012 PMC-Sierra, Inc.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 /*
34  * CAM front-end for communicating with non-DASD devices
35  */
36 
37 #include "opt_aacraid.h"
38 
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/sysctl.h>
43 #include <sys/lock.h>
44 #include <sys/malloc.h>
45 #include <sys/module.h>
46 #include <sys/mutex.h>
47 
48 #include <cam/cam.h>
49 #include <cam/cam_ccb.h>
50 #include <cam/cam_debug.h>
51 #include <cam/cam_periph.h>
52 #include <cam/cam_sim.h>
53 #include <cam/cam_xpt_sim.h>
54 #include <cam/scsi/scsi_all.h>
55 #include <cam/scsi/scsi_message.h>
56 
57 #include <sys/bus.h>
58 #include <sys/conf.h>
59 #include <sys/disk.h>
60 
61 #include <machine/md_var.h>
62 #include <machine/bus.h>
63 #include <sys/rman.h>
64 
65 #include <vm/vm.h>
66 #include <vm/pmap.h>
67 
68 #include <dev/aacraid/aacraid_reg.h>
69 #include <sys/aac_ioctl.h>
70 #include <dev/aacraid/aacraid_debug.h>
71 #include <dev/aacraid/aacraid_var.h>
72 #include <dev/aacraid/aacraid_endian.h>
73 
74 #ifndef	CAM_NEW_TRAN_CODE
75 #define	CAM_NEW_TRAN_CODE	1
76 #endif
77 
78 #ifndef SVPD_SUPPORTED_PAGE_LIST
79 struct scsi_vpd_supported_page_list
80 {
81 	u_int8_t device;
82 	u_int8_t page_code;
83 #define	SVPD_SUPPORTED_PAGE_LIST 0x00
84 	u_int8_t reserved;
85 	u_int8_t length;	/* number of VPD entries */
86 #define	SVPD_SUPPORTED_PAGES_SIZE	251
87 	u_int8_t list[SVPD_SUPPORTED_PAGES_SIZE];
88 };
89 #endif
90 
91 /************************** Version Compatibility *************************/
92 #define	aac_sim_alloc				cam_sim_alloc
93 
94 struct aac_cam {
95 	device_t		dev;
96 	struct aac_sim		*inf;
97 	struct cam_sim		*sim;
98 	struct cam_path		*path;
99 };
100 
101 static int aac_cam_probe(device_t dev);
102 static int aac_cam_attach(device_t dev);
103 static int aac_cam_detach(device_t dev);
104 static void aac_cam_action(struct cam_sim *, union ccb *);
105 static void aac_cam_poll(struct cam_sim *);
106 static void aac_cam_complete(struct aac_command *);
107 static void aac_container_complete(struct aac_command *);
108 static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel,
109 	uint32_t target_id);
110 static void aac_set_scsi_error(struct aac_softc *sc, union ccb *ccb,
111 	u_int8_t status, u_int8_t key, u_int8_t asc, u_int8_t ascq);
112 static int aac_load_map_command_sg(struct aac_softc *, struct aac_command *);
113 static u_int64_t aac_eval_blockno(u_int8_t *);
114 static void aac_container_rw_command(struct cam_sim *, union ccb *, u_int8_t *);
115 static void aac_container_special_command(struct cam_sim *, union ccb *,
116 	u_int8_t *);
117 static void aac_passthrough_command(struct cam_sim *, union ccb *);
118 
119 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
120 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
121 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
122 
123 static device_method_t	aacraid_pass_methods[] = {
124 	DEVMETHOD(device_probe,		aac_cam_probe),
125 	DEVMETHOD(device_attach,	aac_cam_attach),
126 	DEVMETHOD(device_detach,	aac_cam_detach),
127 	{ 0, 0 }
128 };
129 
130 static driver_t	aacraid_pass_driver = {
131 	"aacraidp",
132 	aacraid_pass_methods,
133 	sizeof(struct aac_cam)
134 };
135 
136 DRIVER_MODULE(aacraidp, aacraid, aacraid_pass_driver, 0, 0);
137 MODULE_DEPEND(aacraidp, cam, 1, 1, 1);
138 
139 MALLOC_DEFINE(M_AACRAIDCAM, "aacraidcam", "AACRAID CAM info");
140 
141 static void
142 aac_set_scsi_error(struct aac_softc *sc, union ccb *ccb, u_int8_t status,
143 	u_int8_t key, u_int8_t asc, u_int8_t ascq)
144 {
145 	struct scsi_sense_data_fixed *sense =
146 		(struct scsi_sense_data_fixed *)&ccb->csio.sense_data;
147 
148 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "Error %d!", status);
149 
150 	ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
151 	ccb->csio.scsi_status = status;
152 	if (status == SCSI_STATUS_CHECK_COND) {
153 		ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
154 		bzero(&ccb->csio.sense_data, ccb->csio.sense_len);
155 		ccb->csio.sense_data.error_code =
156 			SSD_CURRENT_ERROR | SSD_ERRCODE_VALID;
157 		sense->flags = key;
158 		if (ccb->csio.sense_len >= 14) {
159 			sense->extra_len = 6;
160 			sense->add_sense_code = asc;
161 			sense->add_sense_code_qual = ascq;
162 		}
163 	}
164 }
165 
166 static void
167 aac_cam_rescan(struct aac_softc *sc, uint32_t channel, uint32_t target_id)
168 {
169 	union ccb *ccb;
170 	struct aac_sim *sim;
171 	struct aac_cam *camsc;
172 
173 	if (target_id == AAC_CAM_TARGET_WILDCARD)
174 		target_id = CAM_TARGET_WILDCARD;
175 
176 	TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) {
177 		camsc = sim->aac_cam;
178 		if (camsc == NULL || camsc->inf == NULL ||
179 		    camsc->inf->BusNumber != channel)
180 			continue;
181 
182 		ccb = xpt_alloc_ccb_nowait();
183 		if (ccb == NULL) {
184 			device_printf(sc->aac_dev,
185 			    "Cannot allocate ccb for bus rescan.\n");
186 			return;
187 		}
188 
189 		if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
190 		    cam_sim_path(camsc->sim),
191 		    target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
192 			xpt_free_ccb(ccb);
193 			device_printf(sc->aac_dev,
194 			    "Cannot create path for bus rescan.\n");
195 			return;
196 		}
197 		xpt_rescan(ccb);
198 		break;
199 	}
200 }
201 
202 static void
203 aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
204 {
205 	union ccb *ccb;
206 	struct aac_cam *camsc;
207 
208 	switch (event->ev_type) {
209 	case AAC_EVENT_CMFREE:
210 		ccb = arg;
211 		camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
212 		free(event, M_AACRAIDCAM);
213 		xpt_release_simq(camsc->sim, 1);
214 		ccb->ccb_h.status = CAM_REQUEUE_REQ;
215 		xpt_done(ccb);
216 		break;
217 	default:
218 		device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
219 		    event->ev_type);
220 		break;
221 	}
222 
223 	return;
224 }
225 
226 static int
227 aac_cam_probe(device_t dev)
228 {
229 	struct aac_cam *camsc;
230 
231 	camsc = (struct aac_cam *)device_get_softc(dev);
232 	if (!camsc->inf)
233 		return (0);
234 	fwprintf(camsc->inf->aac_sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
235 	return (0);
236 }
237 
238 static int
239 aac_cam_detach(device_t dev)
240 {
241 	struct aac_softc *sc;
242 	struct aac_cam *camsc;
243 
244 	camsc = (struct aac_cam *)device_get_softc(dev);
245 	if (!camsc->inf)
246 		return (0);
247 	sc = camsc->inf->aac_sc;
248 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
249 	camsc->inf->aac_cam = NULL;
250 
251 	mtx_lock(&sc->aac_io_lock);
252 
253 	xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
254 	xpt_free_path(camsc->path);
255 	xpt_bus_deregister(cam_sim_path(camsc->sim));
256 	cam_sim_free(camsc->sim, /*free_devq*/TRUE);
257 
258 	sc->cam_rescan_cb = NULL;
259 
260 	mtx_unlock(&sc->aac_io_lock);
261 
262 	return (0);
263 }
264 
265 /*
266  * Register the driver as a CAM SIM
267  */
268 static int
269 aac_cam_attach(device_t dev)
270 {
271 	struct cam_devq *devq;
272 	struct cam_sim *sim;
273 	struct cam_path *path;
274 	struct aac_cam *camsc;
275 	struct aac_sim *inf;
276 
277 	camsc = (struct aac_cam *)device_get_softc(dev);
278 	inf = (struct aac_sim *)device_get_ivars(dev);
279 	if (!inf)
280 		return (EIO);
281 	fwprintf(inf->aac_sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
282 	camsc->inf = inf;
283 	camsc->inf->aac_cam = camsc;
284 
285 	devq = cam_simq_alloc(inf->TargetsPerBus);
286 	if (devq == NULL)
287 		return (EIO);
288 
289 	sim = aac_sim_alloc(aac_cam_action, aac_cam_poll, "aacraidp", camsc,
290 	    device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
291 	if (sim == NULL) {
292 		cam_simq_free(devq);
293 		return (EIO);
294 	}
295 
296 	/* Since every bus has it's own sim, every bus 'appears' as bus 0 */
297 	mtx_lock(&inf->aac_sc->aac_io_lock);
298 	if (aac_xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
299 		cam_sim_free(sim, TRUE);
300 		mtx_unlock(&inf->aac_sc->aac_io_lock);
301 		return (EIO);
302 	}
303 
304 	if (xpt_create_path(&path, NULL, cam_sim_path(sim),
305 	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
306 		xpt_bus_deregister(cam_sim_path(sim));
307 		cam_sim_free(sim, TRUE);
308 		mtx_unlock(&inf->aac_sc->aac_io_lock);
309 		return (EIO);
310 	}
311 
312 	inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
313 	mtx_unlock(&inf->aac_sc->aac_io_lock);
314 
315 	camsc->sim = sim;
316 	camsc->path = path;
317 
318 	return (0);
319 }
320 
321 static u_int64_t
322 aac_eval_blockno(u_int8_t *cmdp)
323 {
324 	u_int64_t blockno;
325 
326 	switch (cmdp[0]) {
327 	case READ_6:
328 	case WRITE_6:
329 		blockno = scsi_3btoul(((struct scsi_rw_6 *)cmdp)->addr);
330 		break;
331 	case READ_10:
332 	case WRITE_10:
333 		blockno = scsi_4btoul(((struct scsi_rw_10 *)cmdp)->addr);
334 		break;
335 	case READ_12:
336 	case WRITE_12:
337 		blockno = scsi_4btoul(((struct scsi_rw_12 *)cmdp)->addr);
338 		break;
339 	case READ_16:
340 	case WRITE_16:
341 		blockno = scsi_8btou64(((struct scsi_rw_16 *)cmdp)->addr);
342 		break;
343 	default:
344 		blockno = 0;
345 		break;
346 	}
347 	return(blockno);
348 }
349 
350 static void
351 aac_container_rw_command(struct cam_sim *sim, union ccb *ccb, u_int8_t *cmdp)
352 {
353 	struct	aac_cam *camsc;
354 	struct	aac_softc *sc;
355 	struct	aac_command *cm;
356 	struct	aac_fib *fib;
357 	u_int64_t blockno;
358 
359 	camsc = (struct aac_cam *)cam_sim_softc(sim);
360 	sc = camsc->inf->aac_sc;
361 	mtx_assert(&sc->aac_io_lock, MA_OWNED);
362 
363 	if (aacraid_alloc_command(sc, &cm)) {
364 		struct aac_event *event;
365 
366 		xpt_freeze_simq(sim, 1);
367 		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
368 		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
369 		event = malloc(sizeof(struct aac_event), M_AACRAIDCAM,
370 		    M_NOWAIT | M_ZERO);
371 		if (event == NULL) {
372 			device_printf(sc->aac_dev,
373 			    "Warning, out of memory for event\n");
374 			return;
375 		}
376 		event->ev_callback = aac_cam_event;
377 		event->ev_arg = ccb;
378 		event->ev_type = AAC_EVENT_CMFREE;
379 		aacraid_add_event(sc, event);
380 		return;
381 	}
382 
383 	fib = cm->cm_fib;
384 	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
385 	case CAM_DIR_IN:
386 		cm->cm_flags |= AAC_CMD_DATAIN;
387 		break;
388 	case CAM_DIR_OUT:
389 		cm->cm_flags |= AAC_CMD_DATAOUT;
390 		break;
391 	case CAM_DIR_NONE:
392 		break;
393 	default:
394 		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
395 		break;
396 	}
397 
398 	blockno = aac_eval_blockno(cmdp);
399 
400 	cm->cm_complete = aac_container_complete;
401 	cm->cm_ccb = ccb;
402 	cm->cm_timestamp = time_uptime;
403 	cm->cm_data = (void *)ccb->csio.data_ptr;
404 	cm->cm_datalen = ccb->csio.dxfer_len;
405 
406 	fib->Header.Size = sizeof(struct aac_fib_header);
407 	fib->Header.XferState =
408 		AAC_FIBSTATE_HOSTOWNED   |
409 		AAC_FIBSTATE_INITIALISED |
410 		AAC_FIBSTATE_EMPTY	 |
411 		AAC_FIBSTATE_FROMHOST	 |
412 		AAC_FIBSTATE_REXPECTED   |
413 		AAC_FIBSTATE_NORM	 |
414 		AAC_FIBSTATE_ASYNC	 |
415 		AAC_FIBSTATE_FAST_RESPONSE;
416 
417 	if (sc->flags & AAC_FLAGS_NEW_COMM_TYPE2) {
418 		struct aac_raw_io2 *raw;
419 		/* NOTE: LE conversion handled at aacraid_map_command_sg() */
420 		raw = (struct aac_raw_io2 *)&fib->data[0];
421 		bzero(raw, sizeof(struct aac_raw_io2));
422 		fib->Header.Command = RawIo2;
423 		raw->strtBlkLow = (u_int32_t)blockno;
424 		raw->strtBlkHigh = (u_int32_t)(blockno >> 32);
425 		raw->byteCnt = cm->cm_datalen;
426 		raw->ldNum = ccb->ccb_h.target_id;
427 		fib->Header.Size += sizeof(struct aac_raw_io2);
428 		cm->cm_sgtable = (struct aac_sg_table *)raw->sge;
429 		if (cm->cm_flags & AAC_CMD_DATAIN)
430 			raw->flags = RIO2_IO_TYPE_READ | RIO2_SG_FORMAT_IEEE1212;
431 		else
432 			raw->flags = RIO2_IO_TYPE_WRITE | RIO2_SG_FORMAT_IEEE1212;
433 	} else if (sc->flags & AAC_FLAGS_RAW_IO) {
434 		struct aac_raw_io *raw;
435 		/* NOTE: LE conversion handled at aacraid_map_command_sg() */
436 		raw = (struct aac_raw_io *)&fib->data[0];
437 		bzero(raw, sizeof(struct aac_raw_io));
438 		fib->Header.Command = RawIo;
439 		raw->BlockNumber = blockno;
440 		raw->ByteCount = cm->cm_datalen;
441 		raw->ContainerId = ccb->ccb_h.target_id;
442 		fib->Header.Size += sizeof(struct aac_raw_io);
443 		cm->cm_sgtable = (struct aac_sg_table *)
444 			&raw->SgMapRaw;
445 		if (cm->cm_flags & AAC_CMD_DATAIN)
446 			raw->Flags = 1;
447 	} else if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) {
448 		fib->Header.Command = ContainerCommand;
449 		if (cm->cm_flags & AAC_CMD_DATAIN) {
450 			struct aac_blockread *br;
451 			br = (struct aac_blockread *)&fib->data[0];
452 			br->Command = VM_CtBlockRead;
453 			br->ContainerId = ccb->ccb_h.target_id;
454 			br->BlockNumber = blockno;
455 			br->ByteCount = cm->cm_datalen;
456 			aac_blockread_tole(br);
457 			fib->Header.Size += sizeof(struct aac_blockread);
458 			cm->cm_sgtable = &br->SgMap;
459 		} else {
460 			struct aac_blockwrite *bw;
461 			bw = (struct aac_blockwrite *)&fib->data[0];
462 			bw->Command = VM_CtBlockWrite;
463 			bw->ContainerId = ccb->ccb_h.target_id;
464 			bw->BlockNumber = blockno;
465 			bw->ByteCount = cm->cm_datalen;
466 			bw->Stable = CUNSTABLE;
467 			aac_blockwrite_tole(bw);
468 			fib->Header.Size += sizeof(struct aac_blockwrite);
469 			cm->cm_sgtable = &bw->SgMap;
470 		}
471 	} else {
472 		fib->Header.Command = ContainerCommand64;
473 		if (cm->cm_flags & AAC_CMD_DATAIN) {
474 			struct aac_blockread64 *br;
475 			br = (struct aac_blockread64 *)&fib->data[0];
476 			br->Command = VM_CtHostRead64;
477 			br->ContainerId = ccb->ccb_h.target_id;
478 			br->SectorCount = cm->cm_datalen/AAC_BLOCK_SIZE;
479 			br->BlockNumber = blockno;
480 			br->Pad = 0;
481 			br->Flags = 0;
482 			aac_blockread64_tole(br);
483 			fib->Header.Size += sizeof(struct aac_blockread64);
484 			cm->cm_sgtable = (struct aac_sg_table *)&br->SgMap64;
485 		} else {
486 			struct aac_blockwrite64 *bw;
487 			bw = (struct aac_blockwrite64 *)&fib->data[0];
488 			bw->Command = VM_CtHostWrite64;
489 			bw->ContainerId = ccb->ccb_h.target_id;
490 			bw->SectorCount = cm->cm_datalen/AAC_BLOCK_SIZE;
491 			bw->BlockNumber = blockno;
492 			bw->Pad = 0;
493 			bw->Flags = 0;
494 			aac_blockwrite64_tole(bw);
495 			fib->Header.Size += sizeof(struct aac_blockwrite64);
496 			cm->cm_sgtable = (struct aac_sg_table *)&bw->SgMap64;
497 		}
498 	}
499 	aac_enqueue_ready(cm);
500 	aacraid_startio(cm->cm_sc);
501 }
502 
503 static void
504 aac_container_special_command(struct cam_sim *sim, union ccb *ccb,
505 	u_int8_t *cmdp)
506 {
507 	struct	aac_cam *camsc;
508 	struct	aac_softc *sc;
509 	struct	aac_container *co;
510 
511 	camsc = (struct aac_cam *)cam_sim_softc(sim);
512 	sc = camsc->inf->aac_sc;
513 	mtx_assert(&sc->aac_io_lock, MA_OWNED);
514 
515 	TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
516 		fwprintf(sc, HBA_FLAGS_DBG_ERROR_B, "found container %d search for %d", co->co_mntobj.ObjectId, ccb->ccb_h.target_id);
517 		if (co->co_mntobj.ObjectId == ccb->ccb_h.target_id)
518 			break;
519 	}
520 	if (co == NULL || ccb->ccb_h.target_lun != 0) {
521 		fwprintf(sc, HBA_FLAGS_DBG_ERROR_B,
522 			"Container not present: cmd 0x%x id %d lun %d len %d",
523 			*cmdp, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
524 			ccb->csio.dxfer_len);
525 		ccb->ccb_h.status = CAM_DEV_NOT_THERE;
526 		xpt_done(ccb);
527 		return;
528 	}
529 
530 	if (ccb->csio.dxfer_len)
531 		bzero(ccb->csio.data_ptr, ccb->csio.dxfer_len);
532 
533 	switch (*cmdp) {
534 	case INQUIRY:
535 	{
536 		struct scsi_inquiry *inq = (struct scsi_inquiry *)cmdp;
537 
538 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
539 		"Container INQUIRY id %d lun %d len %d VPD 0x%x Page 0x%x",
540 			ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
541 			ccb->csio.dxfer_len, inq->byte2, inq->page_code);
542 		if (!(inq->byte2 & SI_EVPD)) {
543 			struct scsi_inquiry_data *p =
544 				(struct scsi_inquiry_data *)ccb->csio.data_ptr;
545 			if (inq->page_code != 0) {
546 				aac_set_scsi_error(sc, ccb,
547 					SCSI_STATUS_CHECK_COND,
548 					SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x00);
549 				xpt_done(ccb);
550 				return;
551 			}
552 			p->device = T_DIRECT;
553 			p->version = SCSI_REV_SPC2;
554 			p->response_format = 2;
555 			if (ccb->csio.dxfer_len >= 36) {
556 				p->additional_length = 31;
557 				p->flags = SID_WBus16|SID_Sync|SID_CmdQue;
558 				/* OEM Vendor defines */
559 				strncpy(p->vendor, "Adaptec ", sizeof(p->vendor));
560 				strncpy(p->product, "Array           ",
561 				    sizeof(p->product));
562 				strncpy(p->revision, "V1.0",
563 				    sizeof(p->revision));
564 			}
565 		} else {
566 			if (inq->page_code == SVPD_SUPPORTED_PAGE_LIST) {
567 				struct scsi_vpd_supported_page_list *p =
568 					(struct scsi_vpd_supported_page_list *)
569 					ccb->csio.data_ptr;
570 				p->device = T_DIRECT;
571 				p->page_code = SVPD_SUPPORTED_PAGE_LIST;
572 				p->length = 2;
573 				p->list[0] = SVPD_SUPPORTED_PAGE_LIST;
574 				p->list[1] = SVPD_UNIT_SERIAL_NUMBER;
575 			} else if (inq->page_code == SVPD_UNIT_SERIAL_NUMBER) {
576 				struct scsi_vpd_unit_serial_number *p =
577 					(struct scsi_vpd_unit_serial_number *)
578 					ccb->csio.data_ptr;
579 				p->device = T_DIRECT;
580 				p->page_code = SVPD_UNIT_SERIAL_NUMBER;
581 				p->length = sprintf((char *)p->serial_num,
582 					"%08X%02X", co->co_uid,
583 					ccb->ccb_h.target_id);
584 			} else {
585 				aac_set_scsi_error(sc, ccb,
586 					SCSI_STATUS_CHECK_COND,
587 					SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x00);
588 				xpt_done(ccb);
589 				return;
590 			}
591 		}
592 		ccb->ccb_h.status = CAM_REQ_CMP;
593 		break;
594 	}
595 
596 	case REPORT_LUNS:
597 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
598 		"Container REPORT_LUNS id %d lun %d len %d",
599 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
600 		ccb->csio.dxfer_len);
601 		ccb->ccb_h.status = CAM_REQ_CMP;
602 		break;
603 
604 	case START_STOP:
605 	{
606 		struct scsi_start_stop_unit *ss =
607 			(struct scsi_start_stop_unit *)cmdp;
608 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
609 		"Container START_STOP id %d lun %d len %d",
610 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
611 		ccb->csio.dxfer_len);
612 		if (sc->aac_support_opt2 & AAC_SUPPORTED_POWER_MANAGEMENT) {
613 			struct aac_command *cm;
614 			struct aac_fib *fib;
615 			struct aac_cnt_config *ccfg;
616 
617 			if (aacraid_alloc_command(sc, &cm)) {
618 				struct aac_event *event;
619 
620 				xpt_freeze_simq(sim, 1);
621 				ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
622 				ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
623 				event = malloc(sizeof(struct aac_event), M_AACRAIDCAM,
624 					M_NOWAIT | M_ZERO);
625 				if (event == NULL) {
626 					device_printf(sc->aac_dev,
627 						"Warning, out of memory for event\n");
628 					return;
629 				}
630 				event->ev_callback = aac_cam_event;
631 				event->ev_arg = ccb;
632 				event->ev_type = AAC_EVENT_CMFREE;
633 				aacraid_add_event(sc, event);
634 				return;
635 			}
636 
637 			fib = cm->cm_fib;
638 			cm->cm_timestamp = time_uptime;
639 			cm->cm_datalen = 0;
640 
641 			fib->Header.Size =
642 				sizeof(struct aac_fib_header) + sizeof(struct aac_cnt_config);
643 			fib->Header.XferState =
644 				AAC_FIBSTATE_HOSTOWNED   |
645 				AAC_FIBSTATE_INITIALISED |
646 				AAC_FIBSTATE_EMPTY	 |
647 				AAC_FIBSTATE_FROMHOST	 |
648 				AAC_FIBSTATE_REXPECTED   |
649 				AAC_FIBSTATE_NORM	 |
650 				AAC_FIBSTATE_ASYNC	 |
651 				AAC_FIBSTATE_FAST_RESPONSE;
652 			fib->Header.Command = ContainerCommand;
653 
654 			/* Start unit */
655 			ccfg = (struct aac_cnt_config *)&fib->data[0];
656 			bzero(ccfg, sizeof (*ccfg) - CT_PACKET_SIZE);
657 			ccfg->Command = VM_ContainerConfig;
658 			ccfg->CTCommand.command = CT_PM_DRIVER_SUPPORT;
659 			ccfg->CTCommand.param[0] = (ss->how & SSS_START ?
660 				AAC_PM_DRIVERSUP_START_UNIT :
661 				AAC_PM_DRIVERSUP_STOP_UNIT);
662 			ccfg->CTCommand.param[1] = co->co_mntobj.ObjectId;
663 			ccfg->CTCommand.param[2] = 0;	/* 1 - immediate */
664 			aac_cnt_config_tole(ccfg);
665 
666 			if (aacraid_wait_command(cm) != 0 ||
667 				le32toh(*(u_int32_t *)&fib->data[0]) != 0) {
668 				printf("Power Management: Error start/stop container %d\n",
669 				co->co_mntobj.ObjectId);
670 			}
671 			aacraid_release_command(cm);
672 		}
673 		ccb->ccb_h.status = CAM_REQ_CMP;
674 		break;
675 	}
676 
677 	case TEST_UNIT_READY:
678 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
679 		"Container TEST_UNIT_READY id %d lun %d len %d",
680 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
681 		ccb->csio.dxfer_len);
682 		ccb->ccb_h.status = CAM_REQ_CMP;
683 		break;
684 
685 	case REQUEST_SENSE:
686 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
687 		"Container REQUEST_SENSE id %d lun %d len %d",
688 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
689 		ccb->csio.dxfer_len);
690 		ccb->ccb_h.status = CAM_REQ_CMP;
691 		break;
692 
693 	case READ_CAPACITY:
694 	{
695 		struct scsi_read_capacity_data *p =
696 			(struct scsi_read_capacity_data *)ccb->csio.data_ptr;
697 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
698 		"Container READ_CAPACITY id %d lun %d len %d",
699 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
700 		ccb->csio.dxfer_len);
701 		scsi_ulto4b(co->co_mntobj.ObjExtension.BlockDevice.BlockSize, p->length);
702 		/* check if greater than 2TB */
703 		if (co->co_mntobj.CapacityHigh) {
704 			if (sc->flags & AAC_FLAGS_LBA_64BIT)
705 				scsi_ulto4b(0xffffffff, p->addr);
706 		} else {
707 			scsi_ulto4b(co->co_mntobj.Capacity-1, p->addr);
708 		}
709 		ccb->ccb_h.status = CAM_REQ_CMP;
710 		break;
711 	}
712 
713 	case SERVICE_ACTION_IN:
714 	{
715 		struct scsi_read_capacity_data_long *p =
716 			(struct scsi_read_capacity_data_long *)
717 			ccb->csio.data_ptr;
718 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
719 		"Container SERVICE_ACTION_IN id %d lun %d len %d",
720 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
721 		ccb->csio.dxfer_len);
722 		if (((struct scsi_read_capacity_16 *)cmdp)->service_action !=
723 			SRC16_SERVICE_ACTION) {
724 			aac_set_scsi_error(sc, ccb, SCSI_STATUS_CHECK_COND,
725 				SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x00);
726 			xpt_done(ccb);
727 			return;
728 		}
729 		scsi_ulto4b(co->co_mntobj.ObjExtension.BlockDevice.BlockSize, p->length);
730 		scsi_ulto4b(co->co_mntobj.CapacityHigh, p->addr);
731 		scsi_ulto4b(co->co_mntobj.Capacity-1, &p->addr[4]);
732 
733 		if (ccb->csio.dxfer_len >= 14) {
734 			u_int32_t mapping = co->co_mntobj.ObjExtension.BlockDevice.bdLgclPhysMap;
735 			p->prot_lbppbe = 0;
736 			while (mapping > 1) {
737 				mapping >>= 1;
738 				p->prot_lbppbe++;
739 			}
740 			p->prot_lbppbe &= 0x0f;
741 		}
742 
743 		ccb->ccb_h.status = CAM_REQ_CMP;
744 		break;
745 	}
746 
747 	case MODE_SENSE_6:
748 	{
749 		struct scsi_mode_sense_6 *msp =(struct scsi_mode_sense_6 *)cmdp;
750 		struct ms6_data {
751 			struct scsi_mode_hdr_6 hd;
752 			struct scsi_mode_block_descr bd;
753 			char pages;
754 		} *p = (struct ms6_data *)ccb->csio.data_ptr;
755 		char *pagep;
756 		int return_all_pages = FALSE;
757 
758 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
759 		"Container MODE_SENSE id %d lun %d len %d page %d",
760 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
761 		ccb->csio.dxfer_len, msp->page);
762 		p->hd.datalen = sizeof(struct scsi_mode_hdr_6) - 1;
763 		if (co->co_mntobj.ContentState & AAC_FSCS_READONLY)
764 			p->hd.dev_specific = 0x80;	/* WP */
765 		p->hd.dev_specific |= 0x10;	/* DPOFUA */
766 		if (msp->byte2 & SMS_DBD) {
767 			p->hd.block_descr_len = 0;
768 		} else {
769 			p->hd.block_descr_len =
770 				sizeof(struct scsi_mode_block_descr);
771 			p->hd.datalen += p->hd.block_descr_len;
772 			scsi_ulto3b(co->co_mntobj.ObjExtension.BlockDevice.BlockSize, p->bd.block_len);
773 			if (co->co_mntobj.Capacity > 0xffffff ||
774 				co->co_mntobj.CapacityHigh) {
775 				p->bd.num_blocks[0] = 0xff;
776 				p->bd.num_blocks[1] = 0xff;
777 				p->bd.num_blocks[2] = 0xff;
778 			} else {
779 				p->bd.num_blocks[0] = (u_int8_t)
780 					(co->co_mntobj.Capacity >> 16);
781 				p->bd.num_blocks[1] = (u_int8_t)
782 					(co->co_mntobj.Capacity >> 8);
783 				p->bd.num_blocks[2] = (u_int8_t)
784 					(co->co_mntobj.Capacity);
785 			}
786 		}
787 		pagep = &p->pages;
788 		switch (msp->page & SMS_PAGE_CODE) {
789 		case SMS_ALL_PAGES_PAGE:
790 			return_all_pages = TRUE;
791 		case SMS_CONTROL_MODE_PAGE:
792 		{
793 			struct scsi_control_page *cp =
794 				(struct scsi_control_page *)pagep;
795 
796 			if (ccb->csio.dxfer_len <= p->hd.datalen + 8) {
797 				aac_set_scsi_error(sc, ccb,
798 					SCSI_STATUS_CHECK_COND,
799 					SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x00);
800 				xpt_done(ccb);
801 				return;
802 			}
803 			cp->page_code = SMS_CONTROL_MODE_PAGE;
804 			cp->page_length = 6;
805 			p->hd.datalen += 8;
806 			pagep += 8;
807 			if (!return_all_pages)
808 				break;
809 		}
810 		case SMS_VENDOR_SPECIFIC_PAGE:
811 			break;
812 		default:
813 			aac_set_scsi_error(sc, ccb, SCSI_STATUS_CHECK_COND,
814 				SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x00);
815 			xpt_done(ccb);
816 			return;
817 		}
818 		ccb->ccb_h.status = CAM_REQ_CMP;
819 		break;
820 	}
821 
822 	case SYNCHRONIZE_CACHE:
823 		fwprintf(sc, HBA_FLAGS_DBG_COMM_B,
824 		"Container SYNCHRONIZE_CACHE id %d lun %d len %d",
825 		ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
826 		ccb->csio.dxfer_len);
827 		ccb->ccb_h.status = CAM_REQ_CMP;
828 		break;
829 
830 	default:
831 		fwprintf(sc, HBA_FLAGS_DBG_ERROR_B,
832 		"Container unsupp. cmd 0x%x id %d lun %d len %d",
833 		*cmdp, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
834 		ccb->csio.dxfer_len);
835 		ccb->ccb_h.status = CAM_REQ_CMP; /*CAM_REQ_INVALID*/
836 		break;
837 	}
838 	xpt_done(ccb);
839 }
840 
841 static void
842 aac_passthrough_command(struct cam_sim *sim, union ccb *ccb)
843 {
844 	struct	aac_cam *camsc;
845 	struct	aac_softc *sc;
846 	struct	aac_command *cm;
847 	struct	aac_fib *fib;
848 	struct	aac_srb *srb;
849 
850 	camsc = (struct aac_cam *)cam_sim_softc(sim);
851 	sc = camsc->inf->aac_sc;
852 	mtx_assert(&sc->aac_io_lock, MA_OWNED);
853 
854 	if (aacraid_alloc_command(sc, &cm)) {
855 		struct aac_event *event;
856 
857 		xpt_freeze_simq(sim, 1);
858 		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
859 		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
860 		event = malloc(sizeof(struct aac_event), M_AACRAIDCAM,
861 		    M_NOWAIT | M_ZERO);
862 		if (event == NULL) {
863 			device_printf(sc->aac_dev,
864 			    "Warning, out of memory for event\n");
865 			return;
866 		}
867 		event->ev_callback = aac_cam_event;
868 		event->ev_arg = ccb;
869 		event->ev_type = AAC_EVENT_CMFREE;
870 		aacraid_add_event(sc, event);
871 		return;
872 	}
873 
874 	fib = cm->cm_fib;
875 	switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
876 	case CAM_DIR_IN:
877 		cm->cm_flags |= AAC_CMD_DATAIN;
878 		break;
879 	case CAM_DIR_OUT:
880 		cm->cm_flags |= AAC_CMD_DATAOUT;
881 		break;
882 	case CAM_DIR_NONE:
883 		break;
884 	default:
885 		cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
886 		break;
887 	}
888 
889 	srb = (struct aac_srb *)&fib->data[0];
890 	srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
891 	if (cm->cm_flags & (AAC_CMD_DATAIN|AAC_CMD_DATAOUT))
892 		srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
893 	if (cm->cm_flags & AAC_CMD_DATAIN)
894 		srb->flags = AAC_SRB_FLAGS_DATA_IN;
895 	else if (cm->cm_flags & AAC_CMD_DATAOUT)
896 		srb->flags = AAC_SRB_FLAGS_DATA_OUT;
897 	else
898 		srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
899 
900 	/*
901 	 * Copy the CDB into the SRB.  It's only 6-16 bytes,
902 	 * so a copy is not too expensive.
903 	 */
904 	srb->cdb_len = ccb->csio.cdb_len;
905 	if (ccb->ccb_h.flags & CAM_CDB_POINTER)
906 		bcopy(ccb->csio.cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
907 			srb->cdb_len);
908 	else
909 		bcopy(ccb->csio.cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
910 			srb->cdb_len);
911 
912 	/* Set command */
913 	fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
914 		ScsiPortCommandU64 : ScsiPortCommand;
915 	fib->Header.Size = sizeof(struct aac_fib_header) +
916 			sizeof(struct aac_srb);
917 
918 	/* Map the s/g list */
919 	cm->cm_sgtable = &srb->sg_map;
920 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
921 		/*
922 		 * Arrange things so that the S/G
923 		 * map will get set up automagically
924 		 */
925 		cm->cm_data = (void *)ccb->csio.data_ptr;
926 		cm->cm_datalen = ccb->csio.dxfer_len;
927 		srb->data_len = ccb->csio.dxfer_len;
928 	} else {
929 		cm->cm_data = NULL;
930 		cm->cm_datalen = 0;
931 		srb->data_len = 0;
932 	}
933 
934 	srb->bus = camsc->inf->BusNumber - 1; /* Bus no. rel. to the card */
935 	srb->target = ccb->ccb_h.target_id;
936 	srb->lun = ccb->ccb_h.target_lun;
937 	srb->timeout = ccb->ccb_h.timeout;	/* XXX */
938 	srb->retry_limit = 0;
939 	aac_srb_tole(srb);
940 
941 	cm->cm_complete = aac_cam_complete;
942 	cm->cm_ccb = ccb;
943 	cm->cm_timestamp = time_uptime;
944 
945 	fib->Header.XferState =
946 			AAC_FIBSTATE_HOSTOWNED	|
947 			AAC_FIBSTATE_INITIALISED	|
948 			AAC_FIBSTATE_FROMHOST	|
949 			AAC_FIBSTATE_REXPECTED	|
950 			AAC_FIBSTATE_NORM	|
951 			AAC_FIBSTATE_ASYNC	 |
952 			AAC_FIBSTATE_FAST_RESPONSE;
953 
954 	aac_enqueue_ready(cm);
955 	aacraid_startio(cm->cm_sc);
956 }
957 
958 static void
959 aac_cam_action(struct cam_sim *sim, union ccb *ccb)
960 {
961 	struct	aac_cam *camsc;
962 	struct	aac_softc *sc;
963 
964 	camsc = (struct aac_cam *)cam_sim_softc(sim);
965 	sc = camsc->inf->aac_sc;
966 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
967 	mtx_assert(&sc->aac_io_lock, MA_OWNED);
968 
969 	/* Synchronous ops, and ops that don't require communication with the
970 	 * controller */
971 	switch(ccb->ccb_h.func_code) {
972 	case XPT_SCSI_IO:
973 		/* This is handled down below */
974 		break;
975 	case XPT_CALC_GEOMETRY:
976 	{
977 		struct ccb_calc_geometry *ccg;
978 		u_int32_t size_mb;
979 		u_int32_t secs_per_cylinder;
980 
981 		ccg = &ccb->ccg;
982 		size_mb = ccg->volume_size /
983 		    ((1024L * 1024L) / ccg->block_size);
984 		if (size_mb >= (2 * 1024)) {		/* 2GB */
985 			ccg->heads = 255;
986 			ccg->secs_per_track = 63;
987 		} else if (size_mb >= (1 * 1024)) {	/* 1GB */
988 			ccg->heads = 128;
989 			ccg->secs_per_track = 32;
990 		} else {
991 			ccg->heads = 64;
992 			ccg->secs_per_track = 32;
993 		}
994 		secs_per_cylinder = ccg->heads * ccg->secs_per_track;
995 		ccg->cylinders = ccg->volume_size / secs_per_cylinder;
996 
997 		ccb->ccb_h.status = CAM_REQ_CMP;
998 		xpt_done(ccb);
999 		return;
1000 	}
1001 	case XPT_PATH_INQ:
1002 	{
1003 		struct ccb_pathinq *cpi = &ccb->cpi;
1004 
1005 		cpi->version_num = 1;
1006 		cpi->target_sprt = 0;
1007 		cpi->hba_eng_cnt = 0;
1008 		cpi->max_target = camsc->inf->TargetsPerBus - 1;
1009 		cpi->max_lun = 7;	/* Per the controller spec */
1010 		cpi->initiator_id = camsc->inf->InitiatorBusId;
1011 		cpi->bus_id = camsc->inf->BusNumber;
1012 		cpi->maxio = AAC_MAXIO_SIZE(sc);
1013 
1014 		/*
1015 		 * Resetting via the passthrough or parallel bus scan
1016 		 * causes problems.
1017 		 */
1018 		cpi->hba_misc = PIM_NOBUSRESET;
1019 		cpi->hba_inquiry = PI_TAG_ABLE;
1020 		cpi->base_transfer_speed = 300000;
1021 #ifdef CAM_NEW_TRAN_CODE
1022 		cpi->hba_misc |= PIM_SEQSCAN;
1023 		cpi->protocol = PROTO_SCSI;
1024 		cpi->transport = XPORT_SAS;
1025 		cpi->transport_version = 0;
1026 		cpi->protocol_version = SCSI_REV_SPC2;
1027 #endif
1028 		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1029 		strlcpy(cpi->hba_vid, "PMC-Sierra", HBA_IDLEN);
1030 		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1031 		cpi->unit_number = cam_sim_unit(sim);
1032 		ccb->ccb_h.status = CAM_REQ_CMP;
1033 		xpt_done(ccb);
1034 		return;
1035 	}
1036 	case XPT_GET_TRAN_SETTINGS:
1037 	{
1038 #ifdef CAM_NEW_TRAN_CODE
1039 		struct ccb_trans_settings_scsi *scsi =
1040 			&ccb->cts.proto_specific.scsi;
1041 		struct ccb_trans_settings_spi *spi =
1042 			&ccb->cts.xport_specific.spi;
1043 		ccb->cts.protocol = PROTO_SCSI;
1044 		ccb->cts.protocol_version = SCSI_REV_SPC2;
1045 		ccb->cts.transport = XPORT_SAS;
1046 		ccb->cts.transport_version = 0;
1047 		scsi->valid = CTS_SCSI_VALID_TQ;
1048 		scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
1049 		spi->valid |= CTS_SPI_VALID_DISC;
1050 		spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
1051 #else
1052 		ccb->cts.flags = ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
1053 		ccb->cts.valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
1054 #endif
1055 		ccb->ccb_h.status = CAM_REQ_CMP;
1056 		xpt_done(ccb);
1057 		return;
1058 	}
1059 	case XPT_SET_TRAN_SETTINGS:
1060 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1061 		xpt_done(ccb);
1062 		return;
1063 	case XPT_RESET_BUS:
1064 		if (!(sc->flags & AAC_FLAGS_CAM_NORESET) &&
1065 			camsc->inf->BusType != CONTAINER_BUS) {
1066 			ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
1067 		} else {
1068 			ccb->ccb_h.status = CAM_REQ_CMP;
1069 		}
1070 		xpt_done(ccb);
1071 		return;
1072 	case XPT_RESET_DEV:
1073 		ccb->ccb_h.status = CAM_REQ_CMP;
1074 		xpt_done(ccb);
1075 		return;
1076 	case XPT_ABORT:
1077 		ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
1078 		xpt_done(ccb);
1079 		return;
1080 	case XPT_TERM_IO:
1081 		ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
1082 		xpt_done(ccb);
1083 		return;
1084 	default:
1085 		device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
1086 		    ccb->ccb_h.func_code);
1087 		ccb->ccb_h.status = CAM_PROVIDE_FAIL;
1088 		xpt_done(ccb);
1089 		return;
1090 	}
1091 
1092 	/* Async ops that require communcation with the controller */
1093 	if (camsc->inf->BusType == CONTAINER_BUS) {
1094 		u_int8_t *cmdp;
1095 
1096 		if (ccb->ccb_h.flags & CAM_CDB_POINTER)
1097 			cmdp = ccb->csio.cdb_io.cdb_ptr;
1098 		else
1099 			cmdp = &ccb->csio.cdb_io.cdb_bytes[0];
1100 
1101 		if (*cmdp==READ_6 || *cmdp==WRITE_6 || *cmdp==READ_10 ||
1102 			*cmdp==WRITE_10 || *cmdp==READ_12 || *cmdp==WRITE_12 ||
1103 			*cmdp==READ_16 || *cmdp==WRITE_16)
1104 			aac_container_rw_command(sim, ccb, cmdp);
1105 		else
1106 			aac_container_special_command(sim, ccb, cmdp);
1107 	} else {
1108 		aac_passthrough_command(sim, ccb);
1109 	}
1110 }
1111 
1112 static void
1113 aac_cam_poll(struct cam_sim *sim)
1114 {
1115 	/*
1116 	 * Pinging the interrupt routine isn't very safe, nor is it
1117 	 * really necessary.  Do nothing.
1118 	 */
1119 }
1120 
1121 static void
1122 aac_container_complete(struct aac_command *cm)
1123 {
1124 	union	ccb *ccb;
1125 	u_int32_t status;
1126 
1127 	fwprintf(cm->cm_sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1128 	ccb = cm->cm_ccb;
1129 	status = le32toh(((u_int32_t *)cm->cm_fib->data)[0]);
1130 
1131 	if (cm->cm_flags & AAC_CMD_RESET) {
1132 		ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
1133 	} else if (status == ST_OK) {
1134 		ccb->ccb_h.status = CAM_REQ_CMP;
1135 	} else if (status == ST_NOT_READY) {
1136 		ccb->ccb_h.status = CAM_BUSY;
1137 	} else {
1138 		ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1139 	}
1140 
1141 	aacraid_release_command(cm);
1142 	xpt_done(ccb);
1143 }
1144 
1145 static void
1146 aac_cam_complete(struct aac_command *cm)
1147 {
1148 	union	ccb *ccb;
1149 	struct 	aac_srb_response *srbr;
1150 	struct	aac_softc *sc;
1151 
1152 	sc = cm->cm_sc;
1153 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1154 	ccb = cm->cm_ccb;
1155 	srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
1156 	aac_srb_response_toh(srbr);
1157 
1158 	if (cm->cm_flags & AAC_CMD_FASTRESP) {
1159 		/* fast response */
1160 		srbr->srb_status = CAM_REQ_CMP;
1161 		srbr->scsi_status = SCSI_STATUS_OK;
1162 		srbr->sense_len = 0;
1163 	}
1164 
1165 	if (cm->cm_flags & AAC_CMD_RESET) {
1166 		ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
1167 	} else if (srbr->fib_status != 0) {
1168 		device_printf(sc->aac_dev, "Passthru FIB failed!\n");
1169 		ccb->ccb_h.status = CAM_REQ_ABORTED;
1170 	} else {
1171 		/*
1172 		 * The SRB error codes just happen to match the CAM error
1173 		 * codes.  How convenient!
1174 		 */
1175 		ccb->ccb_h.status = srbr->srb_status;
1176 
1177 		/* Take care of SCSI_IO ops. */
1178 		if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
1179 			u_int8_t command, device;
1180 
1181 			ccb->csio.scsi_status = srbr->scsi_status;
1182 
1183 			/* Take care of autosense */
1184 			if (srbr->sense_len) {
1185 				int sense_len, scsi_sense_len;
1186 
1187 				scsi_sense_len = sizeof(struct scsi_sense_data);
1188 				bzero(&ccb->csio.sense_data, scsi_sense_len);
1189 				sense_len = (srbr->sense_len >
1190 				    scsi_sense_len) ? scsi_sense_len :
1191 				    srbr->sense_len;
1192 				bcopy(&srbr->sense[0], &ccb->csio.sense_data,
1193 				    sense_len);
1194 				ccb->csio.sense_len = sense_len;
1195 				ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
1196 				// scsi_sense_print(&ccb->csio);
1197 			}
1198 
1199 			/* If this is an inquiry command, fake things out */
1200 			if (ccb->ccb_h.flags & CAM_CDB_POINTER)
1201 				command = ccb->csio.cdb_io.cdb_ptr[0];
1202 			else
1203 				command = ccb->csio.cdb_io.cdb_bytes[0];
1204 
1205 			if (command == INQUIRY) {
1206 				/* Ignore Data Overrun errors on INQUIRY */
1207 				if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1208 				    CAM_DATA_RUN_ERR)
1209 					ccb->ccb_h.status = (ccb->ccb_h.status &
1210 					    ~CAM_STATUS_MASK) | CAM_REQ_CMP;
1211 
1212 				if (ccb->ccb_h.status == CAM_REQ_CMP) {
1213 				  device = ccb->csio.data_ptr[0] & 0x1f;
1214 				  /*
1215 				   * We want DASD and PROC devices to only be
1216 				   * visible through the pass device.
1217 				   */
1218 				  if ((device == T_DIRECT &&
1219 				    !(sc->aac_feature_bits & AAC_SUPPL_SUPPORTED_JBOD)) ||
1220 				    (device == T_PROCESSOR))
1221 				    ccb->csio.data_ptr[0] =
1222 				  	((device & 0xe0) | T_NODEVICE);
1223 
1224 				  /* handle phys. components of a log. drive */
1225 				  if (ccb->csio.data_ptr[0] & 0x20) {
1226 					if (sc->hint_flags & 8) {
1227 					  /* expose phys. device (daXX) */
1228 					  ccb->csio.data_ptr[0] &= 0xdf;
1229 					} else {
1230 					  /* phys. device only visible through pass device (passXX) */
1231 					  ccb->csio.data_ptr[0] |= 0x10;
1232 					}
1233 				  }
1234 				} else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
1235 				  ccb->ccb_h.target_lun != 0) {
1236 				  /* fix for INQUIRYs on Lun>0 */
1237 				  ccb->ccb_h.status = CAM_DEV_NOT_THERE;
1238 				}
1239 			}
1240 		}
1241 	}
1242 
1243 	aacraid_release_command(cm);
1244 	xpt_done(ccb);
1245 }
1246 
1247 static u_int32_t
1248 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
1249 {
1250 	struct aac_command *cm;
1251 	struct aac_fib *fib;
1252 	struct aac_softc *sc;
1253 	struct aac_cam *camsc;
1254 	struct aac_vmioctl *vmi;
1255 	struct aac_resetbus *rbc;
1256 	u_int32_t rval;
1257 
1258 	camsc = (struct aac_cam *)cam_sim_softc(sim);
1259 	sc = camsc->inf->aac_sc;
1260 
1261 	if (sc == NULL) {
1262 		printf("aac: Null sc?\n");
1263 		return (CAM_REQ_ABORTED);
1264 	}
1265 
1266 	if (aacraid_alloc_command(sc, &cm)) {
1267 		struct aac_event *event;
1268 
1269 		xpt_freeze_simq(sim, 1);
1270 		ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1271 		ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
1272 		event = malloc(sizeof(struct aac_event), M_AACRAIDCAM,
1273 			M_NOWAIT | M_ZERO);
1274 		if (event == NULL) {
1275 			device_printf(sc->aac_dev,
1276 				"Warning, out of memory for event\n");
1277 			return (CAM_REQ_ABORTED);
1278 		}
1279 		event->ev_callback = aac_cam_event;
1280 		event->ev_arg = ccb;
1281 		event->ev_type = AAC_EVENT_CMFREE;
1282 		aacraid_add_event(sc, event);
1283 		return (CAM_REQ_ABORTED);
1284 	}
1285 
1286 	fib = cm->cm_fib;
1287 	cm->cm_timestamp = time_uptime;
1288 	cm->cm_datalen = 0;
1289 
1290 	fib->Header.Size =
1291 		sizeof(struct aac_fib_header) + sizeof(struct aac_vmioctl);
1292 	fib->Header.XferState =
1293 		AAC_FIBSTATE_HOSTOWNED   |
1294 		AAC_FIBSTATE_INITIALISED |
1295 		AAC_FIBSTATE_EMPTY	 |
1296 		AAC_FIBSTATE_FROMHOST	 |
1297 		AAC_FIBSTATE_REXPECTED   |
1298 		AAC_FIBSTATE_NORM	 |
1299 		AAC_FIBSTATE_ASYNC	 |
1300 		AAC_FIBSTATE_FAST_RESPONSE;
1301 	fib->Header.Command = ContainerCommand;
1302 
1303 	vmi = (struct aac_vmioctl *)&fib->data[0];
1304 	bzero(vmi, sizeof(struct aac_vmioctl));
1305 
1306 	vmi->Command = VM_Ioctl;
1307 	vmi->ObjType = FT_DRIVE;
1308 	vmi->MethId = sc->scsi_method_id;
1309 	vmi->ObjId = 0;
1310 	vmi->IoctlCmd = ResetBus;
1311 
1312 	rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
1313 	rbc->BusNumber = camsc->inf->BusNumber - 1;
1314 	aac_vmioctl_tole(vmi);
1315 
1316 	if (aacraid_wait_command(cm) != 0) {
1317 		device_printf(sc->aac_dev,"Error sending ResetBus command\n");
1318 		rval = CAM_REQ_ABORTED;
1319 	} else {
1320 		rval = CAM_REQ_CMP;
1321 	}
1322 	aacraid_release_command(cm);
1323 	return (rval);
1324 }
1325 
1326 static u_int32_t
1327 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
1328 {
1329 	return (CAM_UA_ABORT);
1330 }
1331 
1332 static u_int32_t
1333 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
1334 {
1335 	return (CAM_UA_TERMIO);
1336 }
1337 
1338 static int
1339 aac_load_map_command_sg(struct aac_softc *sc, struct aac_command *cm)
1340 {
1341 	int error;
1342 
1343 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1344 	error = bus_dmamap_load(sc->aac_buffer_dmat,
1345 				cm->cm_datamap, cm->cm_data, cm->cm_datalen,
1346 				aacraid_map_command_sg, cm, 0);
1347 	if (error == EINPROGRESS) {
1348 		fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "freezing queue\n");
1349 		sc->flags |= AAC_QUEUE_FRZN;
1350 		error = 0;
1351 	} else if (error != 0) {
1352 		panic("aac_load_map_command_sg: unexpected error %d from "
1353 	     		"busdma", error);
1354 	}
1355 	return(error);
1356 }
1357 
1358 /*
1359  * Start as much queued I/O as possible on the controller
1360  */
1361 void
1362 aacraid_startio(struct aac_softc *sc)
1363 {
1364 	struct aac_command *cm;
1365 
1366 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
1367 
1368 	for (;;) {
1369 		if (sc->aac_state & AAC_STATE_RESET) {
1370 			fwprintf(sc, HBA_FLAGS_DBG_ERROR_B, "AAC_STATE_RESET");
1371 			break;
1372 		}
1373 		/*
1374 		 * This flag might be set if the card is out of resources.
1375 		 * Checking it here prevents an infinite loop of deferrals.
1376 		 */
1377 		if (sc->flags & AAC_QUEUE_FRZN) {
1378 			fwprintf(sc, HBA_FLAGS_DBG_ERROR_B, "AAC_QUEUE_FRZN");
1379 			break;
1380 		}
1381 
1382 		/*
1383 		 * Try to get a command that's been put off for lack of
1384 		 * resources
1385 		 */
1386 		if ((sc->flags & AAC_FLAGS_SYNC_MODE) && sc->aac_sync_cm)
1387 			break;
1388 		cm = aac_dequeue_ready(sc);
1389 
1390 		/* nothing to do? */
1391 		if (cm == NULL)
1392 			break;
1393 
1394 		/* don't map more than once */
1395 		if (cm->cm_flags & AAC_CMD_MAPPED)
1396 			panic("aac: command %p already mapped", cm);
1397 
1398 		/*
1399 		 * Set up the command to go to the controller.  If there are no
1400 		 * data buffers associated with the command then it can bypass
1401 		 * busdma.
1402 		 */
1403 		if (cm->cm_datalen)
1404 			aac_load_map_command_sg(sc, cm);
1405 		else
1406 			aacraid_map_command_sg(cm, NULL, 0, 0);
1407 	}
1408 }
1409