xref: /freebsd/sys/dev/mpt/mpt.c (revision 9fd69f37d28cfd7438cac3eeb45fe9dd46b4d7dd)
1 /*-
2  * Generic routines for LSI Fusion adapters.
3  * FreeBSD Version.
4  *
5  * Copyright (c) 2000, 2001 by Greg Ansley
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice immediately at the beginning of the file, without modification,
12  *    this list of conditions, and the following disclaimer.
13  * 2. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 /*-
29  * Copyright (c) 2002, 2006 by Matthew Jacob
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 are
34  * 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 at minimum a disclaimer
38  *    substantially similar to the "NO WARRANTY" disclaimer below
39  *    ("Disclaimer") and any redistribution must be conditioned upon including
40  *    a substantially similar Disclaimer requirement for further binary
41  *    redistribution.
42  * 3. Neither the names of the above listed copyright holders nor the names
43  *    of any contributors may be used to endorse or promote products derived
44  *    from this software without specific prior written permission.
45  *
46  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
47  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
50  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
51  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
52  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
53  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
54  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
56  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57  *
58  * Support from Chris Ellsworth in order to make SAS adapters work
59  * is gratefully acknowledged.
60  *
61  *
62  * Support from LSI-Logic has also gone a great deal toward making this a
63  * workable subsystem and is gratefully acknowledged.
64  */
65 /*-
66  * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
67  * Copyright (c) 2005, WHEEL Sp. z o.o.
68  * Copyright (c) 2004, 2005 Justin T. Gibbs
69  * All rights reserved.
70  *
71  * Redistribution and use in source and binary forms, with or without
72  * modification, are permitted provided that the following conditions are
73  * met:
74  * 1. Redistributions of source code must retain the above copyright
75  *    notice, this list of conditions and the following disclaimer.
76  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
77  *    substantially similar to the "NO WARRANTY" disclaimer below
78  *    ("Disclaimer") and any redistribution must be conditioned upon including
79  *    a substantially similar Disclaimer requirement for further binary
80  *    redistribution.
81  * 3. Neither the names of the above listed copyright holders nor the names
82  *    of any contributors may be used to endorse or promote products derived
83  *    from this software without specific prior written permission.
84  *
85  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
86  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
87  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
88  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
89  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
90  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
91  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
92  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
93  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
94  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
95  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
96  */
97 
98 #include <sys/cdefs.h>
99 __FBSDID("$FreeBSD$");
100 
101 #include <dev/mpt/mpt.h>
102 #include <dev/mpt/mpt_cam.h> /* XXX For static handler registration */
103 #include <dev/mpt/mpt_raid.h> /* XXX For static handler registration */
104 
105 #include <dev/mpt/mpilib/mpi.h>
106 #include <dev/mpt/mpilib/mpi_ioc.h>
107 #include <dev/mpt/mpilib/mpi_fc.h>
108 #include <dev/mpt/mpilib/mpi_targ.h>
109 
110 #include <sys/sysctl.h>
111 
112 #define MPT_MAX_TRYS 3
113 #define MPT_MAX_WAIT 300000
114 
115 static int maxwait_ack = 0;
116 static int maxwait_int = 0;
117 static int maxwait_state = 0;
118 
119 static TAILQ_HEAD(, mpt_softc)	mpt_tailq = TAILQ_HEAD_INITIALIZER(mpt_tailq);
120 mpt_reply_handler_t *mpt_reply_handlers[MPT_NUM_REPLY_HANDLERS];
121 
122 static mpt_reply_handler_t mpt_default_reply_handler;
123 static mpt_reply_handler_t mpt_config_reply_handler;
124 static mpt_reply_handler_t mpt_handshake_reply_handler;
125 static mpt_reply_handler_t mpt_event_reply_handler;
126 static void mpt_send_event_ack(struct mpt_softc *mpt, request_t *ack_req,
127 			       MSG_EVENT_NOTIFY_REPLY *msg, uint32_t context);
128 static int mpt_send_event_request(struct mpt_softc *mpt, int onoff);
129 static int mpt_soft_reset(struct mpt_softc *mpt);
130 static void mpt_hard_reset(struct mpt_softc *mpt);
131 static int mpt_configure_ioc(struct mpt_softc *mpt, int, int);
132 static int mpt_enable_ioc(struct mpt_softc *mpt, int);
133 
134 /************************* Personality Module Support *************************/
135 /*
136  * We include one extra entry that is guaranteed to be NULL
137  * to simplify our itterator.
138  */
139 static struct mpt_personality *mpt_personalities[MPT_MAX_PERSONALITIES + 1];
140 static __inline struct mpt_personality*
141 	mpt_pers_find(struct mpt_softc *, u_int);
142 static __inline struct mpt_personality*
143 	mpt_pers_find_reverse(struct mpt_softc *, u_int);
144 
145 static __inline struct mpt_personality *
146 mpt_pers_find(struct mpt_softc *mpt, u_int start_at)
147 {
148 	KASSERT(start_at <= MPT_MAX_PERSONALITIES,
149 		("mpt_pers_find: starting position out of range\n"));
150 
151 	while (start_at < MPT_MAX_PERSONALITIES
152 	    && (mpt->mpt_pers_mask & (0x1 << start_at)) == 0) {
153 		start_at++;
154 	}
155 	return (mpt_personalities[start_at]);
156 }
157 
158 /*
159  * Used infrequently, so no need to optimize like a forward
160  * traversal where we use the MAX+1 is guaranteed to be NULL
161  * trick.
162  */
163 static __inline struct mpt_personality *
164 mpt_pers_find_reverse(struct mpt_softc *mpt, u_int start_at)
165 {
166 	while (start_at < MPT_MAX_PERSONALITIES
167 	    && (mpt->mpt_pers_mask & (0x1 << start_at)) == 0) {
168 		start_at--;
169 	}
170 	if (start_at < MPT_MAX_PERSONALITIES)
171 		return (mpt_personalities[start_at]);
172 	return (NULL);
173 }
174 
175 #define MPT_PERS_FOREACH(mpt, pers)				\
176 	for (pers = mpt_pers_find(mpt, /*start_at*/0);		\
177 	     pers != NULL;					\
178 	     pers = mpt_pers_find(mpt, /*start_at*/pers->id+1))
179 
180 #define MPT_PERS_FOREACH_REVERSE(mpt, pers)				\
181 	for (pers = mpt_pers_find_reverse(mpt, MPT_MAX_PERSONALITIES-1);\
182 	     pers != NULL;						\
183 	     pers = mpt_pers_find_reverse(mpt, /*start_at*/pers->id-1))
184 
185 static mpt_load_handler_t      mpt_stdload;
186 static mpt_probe_handler_t     mpt_stdprobe;
187 static mpt_attach_handler_t    mpt_stdattach;
188 static mpt_enable_handler_t    mpt_stdenable;
189 static mpt_ready_handler_t     mpt_stdready;
190 static mpt_event_handler_t     mpt_stdevent;
191 static mpt_reset_handler_t     mpt_stdreset;
192 static mpt_shutdown_handler_t  mpt_stdshutdown;
193 static mpt_detach_handler_t    mpt_stddetach;
194 static mpt_unload_handler_t    mpt_stdunload;
195 static struct mpt_personality mpt_default_personality =
196 {
197 	.load		= mpt_stdload,
198 	.probe		= mpt_stdprobe,
199 	.attach		= mpt_stdattach,
200 	.enable		= mpt_stdenable,
201 	.ready		= mpt_stdready,
202 	.event		= mpt_stdevent,
203 	.reset		= mpt_stdreset,
204 	.shutdown	= mpt_stdshutdown,
205 	.detach		= mpt_stddetach,
206 	.unload		= mpt_stdunload
207 };
208 
209 static mpt_load_handler_t      mpt_core_load;
210 static mpt_attach_handler_t    mpt_core_attach;
211 static mpt_enable_handler_t    mpt_core_enable;
212 static mpt_reset_handler_t     mpt_core_ioc_reset;
213 static mpt_event_handler_t     mpt_core_event;
214 static mpt_shutdown_handler_t  mpt_core_shutdown;
215 static mpt_shutdown_handler_t  mpt_core_detach;
216 static mpt_unload_handler_t    mpt_core_unload;
217 static struct mpt_personality mpt_core_personality =
218 {
219 	.name		= "mpt_core",
220 	.load		= mpt_core_load,
221 //	.attach		= mpt_core_attach,
222 //	.enable		= mpt_core_enable,
223 	.event		= mpt_core_event,
224 	.reset		= mpt_core_ioc_reset,
225 	.shutdown	= mpt_core_shutdown,
226 	.detach		= mpt_core_detach,
227 	.unload		= mpt_core_unload,
228 };
229 
230 /*
231  * Manual declaration so that DECLARE_MPT_PERSONALITY doesn't need
232  * ordering information.  We want the core to always register FIRST.
233  * other modules are set to SI_ORDER_SECOND.
234  */
235 static moduledata_t mpt_core_mod = {
236 	"mpt_core", mpt_modevent, &mpt_core_personality
237 };
238 DECLARE_MODULE(mpt_core, mpt_core_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
239 MODULE_VERSION(mpt_core, 1);
240 
241 #define MPT_PERS_ATTACHED(pers, mpt) ((mpt)->mpt_pers_mask & (0x1 << pers->id))
242 
243 int
244 mpt_modevent(module_t mod, int type, void *data)
245 {
246 	struct mpt_personality *pers;
247 	int error;
248 
249 	pers = (struct mpt_personality *)data;
250 
251 	error = 0;
252 	switch (type) {
253 	case MOD_LOAD:
254 	{
255 		mpt_load_handler_t **def_handler;
256 		mpt_load_handler_t **pers_handler;
257 		int i;
258 
259 		for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
260 			if (mpt_personalities[i] == NULL)
261 				break;
262 		}
263 		if (i >= MPT_MAX_PERSONALITIES) {
264 			error = ENOMEM;
265 			break;
266 		}
267 		pers->id = i;
268 		mpt_personalities[i] = pers;
269 
270 		/* Install standard/noop handlers for any NULL entries. */
271 		def_handler = MPT_PERS_FIRST_HANDLER(&mpt_default_personality);
272 		pers_handler = MPT_PERS_FIRST_HANDLER(pers);
273 		while (pers_handler <= MPT_PERS_LAST_HANDLER(pers)) {
274 			if (*pers_handler == NULL)
275 				*pers_handler = *def_handler;
276 			pers_handler++;
277 			def_handler++;
278 		}
279 
280 		error = (pers->load(pers));
281 		if (error != 0)
282 			mpt_personalities[i] = NULL;
283 		break;
284 	}
285 	case MOD_SHUTDOWN:
286 		break;
287 #if __FreeBSD_version >= 500000
288 	case MOD_QUIESCE:
289 		break;
290 #endif
291 	case MOD_UNLOAD:
292 		error = pers->unload(pers);
293 		mpt_personalities[pers->id] = NULL;
294 		break;
295 	default:
296 		error = EINVAL;
297 		break;
298 	}
299 	return (error);
300 }
301 
302 int
303 mpt_stdload(struct mpt_personality *pers)
304 {
305 	/* Load is always successfull. */
306 	return (0);
307 }
308 
309 int
310 mpt_stdprobe(struct mpt_softc *mpt)
311 {
312 	/* Probe is always successfull. */
313 	return (0);
314 }
315 
316 int
317 mpt_stdattach(struct mpt_softc *mpt)
318 {
319 	/* Attach is always successfull. */
320 	return (0);
321 }
322 
323 int
324 mpt_stdenable(struct mpt_softc *mpt)
325 {
326 	/* Enable is always successfull. */
327 	return (0);
328 }
329 
330 void
331 mpt_stdready(struct mpt_softc *mpt)
332 {
333 }
334 
335 
336 int
337 mpt_stdevent(struct mpt_softc *mpt, request_t *req, MSG_EVENT_NOTIFY_REPLY *msg)
338 {
339 	mpt_lprt(mpt, MPT_PRT_DEBUG, "mpt_stdevent: 0x%x\n", msg->Event & 0xFF);
340 	/* Event was not for us. */
341 	return (0);
342 }
343 
344 void
345 mpt_stdreset(struct mpt_softc *mpt, int type)
346 {
347 }
348 
349 void
350 mpt_stdshutdown(struct mpt_softc *mpt)
351 {
352 }
353 
354 void
355 mpt_stddetach(struct mpt_softc *mpt)
356 {
357 }
358 
359 int
360 mpt_stdunload(struct mpt_personality *pers)
361 {
362 	/* Unload is always successfull. */
363 	return (0);
364 }
365 
366 /*
367  * Post driver attachment, we may want to perform some global actions.
368  * Here is the hook to do so.
369  */
370 
371 static void
372 mpt_postattach(void *unused)
373 {
374 	struct mpt_softc *mpt;
375 	struct mpt_personality *pers;
376 
377 	TAILQ_FOREACH(mpt, &mpt_tailq, links) {
378 		MPT_PERS_FOREACH(mpt, pers)
379 			pers->ready(mpt);
380 	}
381 }
382 SYSINIT(mptdev, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE, mpt_postattach, NULL);
383 
384 
385 /******************************* Bus DMA Support ******************************/
386 void
387 mpt_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error)
388 {
389 	struct mpt_map_info *map_info;
390 
391 	map_info = (struct mpt_map_info *)arg;
392 	map_info->error = error;
393 	map_info->phys = segs->ds_addr;
394 }
395 
396 /**************************** Reply/Event Handling ****************************/
397 int
398 mpt_register_handler(struct mpt_softc *mpt, mpt_handler_type type,
399 		     mpt_handler_t handler, uint32_t *phandler_id)
400 {
401 
402 	switch (type) {
403 	case MPT_HANDLER_REPLY:
404 	{
405 		u_int cbi;
406 		u_int free_cbi;
407 
408 		if (phandler_id == NULL)
409 			return (EINVAL);
410 
411 		free_cbi = MPT_HANDLER_ID_NONE;
412 		for (cbi = 0; cbi < MPT_NUM_REPLY_HANDLERS; cbi++) {
413 			/*
414 			 * If the same handler is registered multiple
415 			 * times, don't error out.  Just return the
416 			 * index of the original registration.
417 			 */
418 			if (mpt_reply_handlers[cbi] == handler.reply_handler) {
419 				*phandler_id = MPT_CBI_TO_HID(cbi);
420 				return (0);
421 			}
422 
423 			/*
424 			 * Fill from the front in the hope that
425 			 * all registered handlers consume only a
426 			 * single cache line.
427 			 *
428 			 * We don't break on the first empty slot so
429 			 * that the full table is checked to see if
430 			 * this handler was previously registered.
431 			 */
432 			if (free_cbi == MPT_HANDLER_ID_NONE &&
433 			    (mpt_reply_handlers[cbi]
434 			  == mpt_default_reply_handler))
435 				free_cbi = cbi;
436 		}
437 		if (free_cbi == MPT_HANDLER_ID_NONE) {
438 			return (ENOMEM);
439 		}
440 		mpt_reply_handlers[free_cbi] = handler.reply_handler;
441 		*phandler_id = MPT_CBI_TO_HID(free_cbi);
442 		break;
443 	}
444 	default:
445 		mpt_prt(mpt, "mpt_register_handler unknown type %d\n", type);
446 		return (EINVAL);
447 	}
448 	return (0);
449 }
450 
451 int
452 mpt_deregister_handler(struct mpt_softc *mpt, mpt_handler_type type,
453 		       mpt_handler_t handler, uint32_t handler_id)
454 {
455 
456 	switch (type) {
457 	case MPT_HANDLER_REPLY:
458 	{
459 		u_int cbi;
460 
461 		cbi = MPT_CBI(handler_id);
462 		if (cbi >= MPT_NUM_REPLY_HANDLERS
463 		 || mpt_reply_handlers[cbi] != handler.reply_handler)
464 			return (ENOENT);
465 		mpt_reply_handlers[cbi] = mpt_default_reply_handler;
466 		break;
467 	}
468 	default:
469 		mpt_prt(mpt, "mpt_deregister_handler unknown type %d\n", type);
470 		return (EINVAL);
471 	}
472 	return (0);
473 }
474 
475 static int
476 mpt_default_reply_handler(struct mpt_softc *mpt, request_t *req,
477 	uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
478 {
479 	mpt_prt(mpt,
480 	    "Default Handler Called: req=%p:%u reply_descriptor=%x frame=%p\n",
481 	    req, req->serno, reply_desc, reply_frame);
482 
483 	if (reply_frame != NULL)
484 		mpt_dump_reply_frame(mpt, reply_frame);
485 
486 	mpt_prt(mpt, "Reply Frame Ignored\n");
487 
488 	return (/*free_reply*/TRUE);
489 }
490 
491 static int
492 mpt_config_reply_handler(struct mpt_softc *mpt, request_t *req,
493  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
494 {
495 	if (req != NULL) {
496 
497 		if (reply_frame != NULL) {
498 			MSG_CONFIG *cfgp;
499 			MSG_CONFIG_REPLY *reply;
500 
501 			cfgp = (MSG_CONFIG *)req->req_vbuf;
502 			reply = (MSG_CONFIG_REPLY *)reply_frame;
503 			req->IOCStatus = le16toh(reply_frame->IOCStatus);
504 			bcopy(&reply->Header, &cfgp->Header,
505 			      sizeof(cfgp->Header));
506 			cfgp->ExtPageLength = reply->ExtPageLength;
507 			cfgp->ExtPageType = reply->ExtPageType;
508 		}
509 		req->state &= ~REQ_STATE_QUEUED;
510 		req->state |= REQ_STATE_DONE;
511 		TAILQ_REMOVE(&mpt->request_pending_list, req, links);
512 		if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
513 			wakeup(req);
514 		} else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
515 			/*
516 			 * Whew- we can free this request (late completion)
517 			 */
518 			mpt_free_request(mpt, req);
519 		}
520 	}
521 
522 	return (TRUE);
523 }
524 
525 static int
526 mpt_handshake_reply_handler(struct mpt_softc *mpt, request_t *req,
527  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
528 {
529 	/* Nothing to be done. */
530 	return (TRUE);
531 }
532 
533 static int
534 mpt_event_reply_handler(struct mpt_softc *mpt, request_t *req,
535     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
536 {
537 	int free_reply;
538 
539 	KASSERT(reply_frame != NULL, ("null reply in mpt_event_reply_handler"));
540 	KASSERT(req != NULL, ("null request in mpt_event_reply_handler"));
541 
542 	free_reply = TRUE;
543 	switch (reply_frame->Function) {
544 	case MPI_FUNCTION_EVENT_NOTIFICATION:
545 	{
546 		MSG_EVENT_NOTIFY_REPLY *msg;
547 		struct mpt_personality *pers;
548 		u_int handled;
549 
550 		handled = 0;
551 		msg = (MSG_EVENT_NOTIFY_REPLY *)reply_frame;
552 		msg->EventDataLength = le16toh(msg->EventDataLength);
553 		msg->IOCStatus = le16toh(msg->IOCStatus);
554 		msg->IOCLogInfo = le32toh(msg->IOCLogInfo);
555 		msg->Event = le32toh(msg->Event);
556 		MPT_PERS_FOREACH(mpt, pers)
557 			handled += pers->event(mpt, req, msg);
558 
559 		if (handled == 0 && mpt->mpt_pers_mask == 0) {
560 			mpt_lprt(mpt, MPT_PRT_INFO,
561 				"No Handlers For Any Event Notify Frames. "
562 				"Event %#x (ACK %sequired).\n",
563 				msg->Event, msg->AckRequired? "r" : "not r");
564 		} else if (handled == 0) {
565 			mpt_lprt(mpt,
566 				msg->AckRequired? MPT_PRT_WARN : MPT_PRT_INFO,
567 				"Unhandled Event Notify Frame. Event %#x "
568 				"(ACK %sequired).\n",
569 				msg->Event, msg->AckRequired? "r" : "not r");
570 		}
571 
572 		if (msg->AckRequired) {
573 			request_t *ack_req;
574 			uint32_t context;
575 
576 			context = req->index | MPT_REPLY_HANDLER_EVENTS;
577 			ack_req = mpt_get_request(mpt, FALSE);
578 			if (ack_req == NULL) {
579 				struct mpt_evtf_record *evtf;
580 
581 				evtf = (struct mpt_evtf_record *)reply_frame;
582 				evtf->context = context;
583 				LIST_INSERT_HEAD(&mpt->ack_frames, evtf, links);
584 				free_reply = FALSE;
585 				break;
586 			}
587 			mpt_send_event_ack(mpt, ack_req, msg, context);
588 			/*
589 			 * Don't check for CONTINUATION_REPLY here
590 			 */
591 			return (free_reply);
592 		}
593 		break;
594 	}
595 	case MPI_FUNCTION_PORT_ENABLE:
596 		mpt_lprt(mpt, MPT_PRT_DEBUG , "enable port reply\n");
597 		break;
598 	case MPI_FUNCTION_EVENT_ACK:
599 		break;
600 	default:
601 		mpt_prt(mpt, "unknown event function: %x\n",
602 			reply_frame->Function);
603 		break;
604 	}
605 
606 	/*
607 	 * I'm not sure that this continuation stuff works as it should.
608 	 *
609 	 * I've had FC async events occur that free the frame up because
610 	 * the continuation bit isn't set, and then additional async events
611 	 * then occur using the same context. As you might imagine, this
612 	 * leads to Very Bad Thing.
613 	 *
614 	 *  Let's just be safe for now and not free them up until we figure
615 	 * out what's actually happening here.
616 	 */
617 #if	0
618 	if ((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0) {
619 		TAILQ_REMOVE(&mpt->request_pending_list, req, links);
620 		mpt_free_request(mpt, req);
621 		mpt_prt(mpt, "event_reply %x for req %p:%u NOT a continuation",
622 		    reply_frame->Function, req, req->serno);
623 		if (reply_frame->Function == MPI_FUNCTION_EVENT_NOTIFICATION) {
624 			MSG_EVENT_NOTIFY_REPLY *msg =
625 			    (MSG_EVENT_NOTIFY_REPLY *)reply_frame;
626 			mpt_prtc(mpt, " Event=0x%x AckReq=%d",
627 			    msg->Event, msg->AckRequired);
628 		}
629 	} else {
630 		mpt_prt(mpt, "event_reply %x for %p:%u IS a continuation",
631 		    reply_frame->Function, req, req->serno);
632 		if (reply_frame->Function == MPI_FUNCTION_EVENT_NOTIFICATION) {
633 			MSG_EVENT_NOTIFY_REPLY *msg =
634 			    (MSG_EVENT_NOTIFY_REPLY *)reply_frame;
635 			mpt_prtc(mpt, " Event=0x%x AckReq=%d",
636 			    msg->Event, msg->AckRequired);
637 		}
638 		mpt_prtc(mpt, "\n");
639 	}
640 #endif
641 	return (free_reply);
642 }
643 
644 /*
645  * Process an asynchronous event from the IOC.
646  */
647 static int
648 mpt_core_event(struct mpt_softc *mpt, request_t *req,
649 	       MSG_EVENT_NOTIFY_REPLY *msg)
650 {
651 	mpt_lprt(mpt, MPT_PRT_DEBUG, "mpt_core_event: 0x%x\n",
652                  msg->Event & 0xFF);
653 	switch(msg->Event & 0xFF) {
654 	case MPI_EVENT_NONE:
655 		break;
656 	case MPI_EVENT_LOG_DATA:
657 	{
658 		int i;
659 
660 		/* Some error occured that LSI wants logged */
661 		mpt_prt(mpt, "EvtLogData: IOCLogInfo: 0x%08x\n",
662 			msg->IOCLogInfo);
663 		mpt_prt(mpt, "\tEvtLogData: Event Data:");
664 		for (i = 0; i < msg->EventDataLength; i++)
665 			mpt_prtc(mpt, "  %08x", msg->Data[i]);
666 		mpt_prtc(mpt, "\n");
667 		break;
668 	}
669 	case MPI_EVENT_EVENT_CHANGE:
670 		/*
671 		 * This is just an acknowledgement
672 		 * of our mpt_send_event_request.
673 		 */
674 		break;
675 	case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
676 		break;
677 	default:
678 		return (0);
679 		break;
680 	}
681 	return (1);
682 }
683 
684 static void
685 mpt_send_event_ack(struct mpt_softc *mpt, request_t *ack_req,
686 		   MSG_EVENT_NOTIFY_REPLY *msg, uint32_t context)
687 {
688 	MSG_EVENT_ACK *ackp;
689 
690 	ackp = (MSG_EVENT_ACK *)ack_req->req_vbuf;
691 	memset(ackp, 0, sizeof (*ackp));
692 	ackp->Function = MPI_FUNCTION_EVENT_ACK;
693 	ackp->Event = htole32(msg->Event);
694 	ackp->EventContext = htole32(msg->EventContext);
695 	ackp->MsgContext = htole32(context);
696 	mpt_check_doorbell(mpt);
697 	mpt_send_cmd(mpt, ack_req);
698 }
699 
700 /***************************** Interrupt Handling *****************************/
701 void
702 mpt_intr(void *arg)
703 {
704 	struct mpt_softc *mpt;
705 	uint32_t reply_desc;
706 	int ntrips = 0;
707 
708 	mpt = (struct mpt_softc *)arg;
709 	mpt_lprt(mpt, MPT_PRT_DEBUG2, "enter mpt_intr\n");
710 	MPT_LOCK_ASSERT(mpt);
711 
712 	while ((reply_desc = mpt_pop_reply_queue(mpt)) != MPT_REPLY_EMPTY) {
713 		request_t	  *req;
714 		MSG_DEFAULT_REPLY *reply_frame;
715 		uint32_t	   reply_baddr;
716 		uint32_t           ctxt_idx;
717 		u_int		   cb_index;
718 		u_int		   req_index;
719 		int		   free_rf;
720 
721 		req = NULL;
722 		reply_frame = NULL;
723 		reply_baddr = 0;
724 		if ((reply_desc & MPI_ADDRESS_REPLY_A_BIT) != 0) {
725 			u_int offset;
726 			/*
727 			 * Insure that the reply frame is coherent.
728 			 */
729 			reply_baddr = MPT_REPLY_BADDR(reply_desc);
730 			offset = reply_baddr - (mpt->reply_phys & 0xFFFFFFFF);
731 			bus_dmamap_sync_range(mpt->reply_dmat,
732 			    mpt->reply_dmap, offset, MPT_REPLY_SIZE,
733 			    BUS_DMASYNC_POSTREAD);
734 			reply_frame = MPT_REPLY_OTOV(mpt, offset);
735 			ctxt_idx = le32toh(reply_frame->MsgContext);
736 		} else {
737 			uint32_t type;
738 
739 			type = MPI_GET_CONTEXT_REPLY_TYPE(reply_desc);
740 			ctxt_idx = reply_desc;
741 			mpt_lprt(mpt, MPT_PRT_DEBUG1, "Context Reply: 0x%08x\n",
742 				    reply_desc);
743 
744 			switch (type) {
745 			case MPI_CONTEXT_REPLY_TYPE_SCSI_INIT:
746 				ctxt_idx &= MPI_CONTEXT_REPLY_CONTEXT_MASK;
747 				break;
748 			case MPI_CONTEXT_REPLY_TYPE_SCSI_TARGET:
749 				ctxt_idx = GET_IO_INDEX(reply_desc);
750 				if (mpt->tgt_cmd_ptrs == NULL) {
751 					mpt_prt(mpt,
752 					    "mpt_intr: no target cmd ptrs\n");
753 					reply_desc = MPT_REPLY_EMPTY;
754 					break;
755 				}
756 				if (ctxt_idx >= mpt->tgt_cmds_allocated) {
757 					mpt_prt(mpt,
758 					    "mpt_intr: bad tgt cmd ctxt %u\n",
759 					    ctxt_idx);
760 					reply_desc = MPT_REPLY_EMPTY;
761 					ntrips = 1000;
762 					break;
763 				}
764 				req = mpt->tgt_cmd_ptrs[ctxt_idx];
765 				if (req == NULL) {
766 					mpt_prt(mpt, "no request backpointer "
767 					    "at index %u", ctxt_idx);
768 					reply_desc = MPT_REPLY_EMPTY;
769 					ntrips = 1000;
770 					break;
771 				}
772 				/*
773 				 * Reformulate ctxt_idx to be just as if
774 				 * it were another type of context reply
775 				 * so the code below will find the request
776 				 * via indexing into the pool.
777 				 */
778 				ctxt_idx =
779 				    req->index | mpt->scsi_tgt_handler_id;
780 				req = NULL;
781 				break;
782 			case MPI_CONTEXT_REPLY_TYPE_LAN:
783 				mpt_prt(mpt, "LAN CONTEXT REPLY: 0x%08x\n",
784 				    reply_desc);
785 				reply_desc = MPT_REPLY_EMPTY;
786 				break;
787 			default:
788 				mpt_prt(mpt, "Context Reply 0x%08x?\n", type);
789 				reply_desc = MPT_REPLY_EMPTY;
790 				break;
791 			}
792 			if (reply_desc == MPT_REPLY_EMPTY) {
793 				if (ntrips++ > 1000) {
794 					break;
795 				}
796 				continue;
797 			}
798 		}
799 
800 		cb_index = MPT_CONTEXT_TO_CBI(ctxt_idx);
801 		req_index = MPT_CONTEXT_TO_REQI(ctxt_idx);
802 		if (req_index < MPT_MAX_REQUESTS(mpt)) {
803 			req = &mpt->request_pool[req_index];
804 		} else {
805 			mpt_prt(mpt, "WARN: mpt_intr index == %d (reply_desc =="
806 			    " 0x%x)\n", req_index, reply_desc);
807 		}
808 
809 		free_rf = mpt_reply_handlers[cb_index](mpt, req,
810 		    reply_desc, reply_frame);
811 
812 		if (reply_frame != NULL && free_rf) {
813 			mpt_free_reply(mpt, reply_baddr);
814 		}
815 
816 		/*
817 		 * If we got ourselves disabled, don't get stuck in a loop
818 		 */
819 		if (mpt->disabled) {
820 			mpt_disable_ints(mpt);
821 			break;
822 		}
823 		if (ntrips++ > 1000) {
824 			break;
825 		}
826 	}
827 	mpt_lprt(mpt, MPT_PRT_DEBUG2, "exit mpt_intr\n");
828 }
829 
830 /******************************* Error Recovery *******************************/
831 void
832 mpt_complete_request_chain(struct mpt_softc *mpt, struct req_queue *chain,
833 			    u_int iocstatus)
834 {
835 	MSG_DEFAULT_REPLY  ioc_status_frame;
836 	request_t	  *req;
837 
838 	memset(&ioc_status_frame, 0, sizeof(ioc_status_frame));
839 	ioc_status_frame.MsgLength = roundup2(sizeof(ioc_status_frame), 4);
840 	ioc_status_frame.IOCStatus = iocstatus;
841 	while((req = TAILQ_FIRST(chain)) != NULL) {
842 		MSG_REQUEST_HEADER *msg_hdr;
843 		u_int		    cb_index;
844 
845 		TAILQ_REMOVE(chain, req, links);
846 		msg_hdr = (MSG_REQUEST_HEADER *)req->req_vbuf;
847 		ioc_status_frame.Function = msg_hdr->Function;
848 		ioc_status_frame.MsgContext = msg_hdr->MsgContext;
849 		cb_index = MPT_CONTEXT_TO_CBI(le32toh(msg_hdr->MsgContext));
850 		mpt_reply_handlers[cb_index](mpt, req, msg_hdr->MsgContext,
851 		    &ioc_status_frame);
852 	}
853 }
854 
855 /********************************* Diagnostics ********************************/
856 /*
857  * Perform a diagnostic dump of a reply frame.
858  */
859 void
860 mpt_dump_reply_frame(struct mpt_softc *mpt, MSG_DEFAULT_REPLY *reply_frame)
861 {
862 	mpt_prt(mpt, "Address Reply:\n");
863 	mpt_print_reply(reply_frame);
864 }
865 
866 /******************************* Doorbell Access ******************************/
867 static __inline uint32_t mpt_rd_db(struct mpt_softc *mpt);
868 static __inline  uint32_t mpt_rd_intr(struct mpt_softc *mpt);
869 
870 static __inline uint32_t
871 mpt_rd_db(struct mpt_softc *mpt)
872 {
873 	return mpt_read(mpt, MPT_OFFSET_DOORBELL);
874 }
875 
876 static __inline uint32_t
877 mpt_rd_intr(struct mpt_softc *mpt)
878 {
879 	return mpt_read(mpt, MPT_OFFSET_INTR_STATUS);
880 }
881 
882 /* Busy wait for a door bell to be read by IOC */
883 static int
884 mpt_wait_db_ack(struct mpt_softc *mpt)
885 {
886 	int i;
887 	for (i=0; i < MPT_MAX_WAIT; i++) {
888 		if (!MPT_DB_IS_BUSY(mpt_rd_intr(mpt))) {
889 			maxwait_ack = i > maxwait_ack ? i : maxwait_ack;
890 			return (MPT_OK);
891 		}
892 		DELAY(200);
893 	}
894 	return (MPT_FAIL);
895 }
896 
897 /* Busy wait for a door bell interrupt */
898 static int
899 mpt_wait_db_int(struct mpt_softc *mpt)
900 {
901 	int i;
902 	for (i = 0; i < MPT_MAX_WAIT; i++) {
903 		if (MPT_DB_INTR(mpt_rd_intr(mpt))) {
904 			maxwait_int = i > maxwait_int ? i : maxwait_int;
905 			return MPT_OK;
906 		}
907 		DELAY(100);
908 	}
909 	return (MPT_FAIL);
910 }
911 
912 /* Wait for IOC to transition to a give state */
913 void
914 mpt_check_doorbell(struct mpt_softc *mpt)
915 {
916 	uint32_t db = mpt_rd_db(mpt);
917 	if (MPT_STATE(db) != MPT_DB_STATE_RUNNING) {
918 		mpt_prt(mpt, "Device not running\n");
919 		mpt_print_db(db);
920 	}
921 }
922 
923 /* Wait for IOC to transition to a give state */
924 static int
925 mpt_wait_state(struct mpt_softc *mpt, enum DB_STATE_BITS state)
926 {
927 	int i;
928 
929 	for (i = 0; i < MPT_MAX_WAIT; i++) {
930 		uint32_t db = mpt_rd_db(mpt);
931 		if (MPT_STATE(db) == state) {
932 			maxwait_state = i > maxwait_state ? i : maxwait_state;
933 			return (MPT_OK);
934 		}
935 		DELAY(100);
936 	}
937 	return (MPT_FAIL);
938 }
939 
940 
941 /************************* Intialization/Configuration ************************/
942 static int mpt_download_fw(struct mpt_softc *mpt);
943 
944 /* Issue the reset COMMAND to the IOC */
945 static int
946 mpt_soft_reset(struct mpt_softc *mpt)
947 {
948 	mpt_lprt(mpt, MPT_PRT_DEBUG, "soft reset\n");
949 
950 	/* Have to use hard reset if we are not in Running state */
951 	if (MPT_STATE(mpt_rd_db(mpt)) != MPT_DB_STATE_RUNNING) {
952 		mpt_prt(mpt, "soft reset failed: device not running\n");
953 		return (MPT_FAIL);
954 	}
955 
956 	/* If door bell is in use we don't have a chance of getting
957 	 * a word in since the IOC probably crashed in message
958 	 * processing. So don't waste our time.
959 	 */
960 	if (MPT_DB_IS_IN_USE(mpt_rd_db(mpt))) {
961 		mpt_prt(mpt, "soft reset failed: doorbell wedged\n");
962 		return (MPT_FAIL);
963 	}
964 
965 	/* Send the reset request to the IOC */
966 	mpt_write(mpt, MPT_OFFSET_DOORBELL,
967 	    MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET << MPI_DOORBELL_FUNCTION_SHIFT);
968 	if (mpt_wait_db_ack(mpt) != MPT_OK) {
969 		mpt_prt(mpt, "soft reset failed: ack timeout\n");
970 		return (MPT_FAIL);
971 	}
972 
973 	/* Wait for the IOC to reload and come out of reset state */
974 	if (mpt_wait_state(mpt, MPT_DB_STATE_READY) != MPT_OK) {
975 		mpt_prt(mpt, "soft reset failed: device did not restart\n");
976 		return (MPT_FAIL);
977 	}
978 
979 	return MPT_OK;
980 }
981 
982 static int
983 mpt_enable_diag_mode(struct mpt_softc *mpt)
984 {
985 	int try;
986 
987 	try = 20;
988 	while (--try) {
989 
990 		if ((mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC) & MPI_DIAG_DRWE) != 0)
991 			break;
992 
993 		/* Enable diagnostic registers */
994 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, 0xFF);
995 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_1ST_KEY_VALUE);
996 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_2ND_KEY_VALUE);
997 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_3RD_KEY_VALUE);
998 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_4TH_KEY_VALUE);
999 		mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_5TH_KEY_VALUE);
1000 
1001 		DELAY(100000);
1002 	}
1003 	if (try == 0)
1004 		return (EIO);
1005 	return (0);
1006 }
1007 
1008 static void
1009 mpt_disable_diag_mode(struct mpt_softc *mpt)
1010 {
1011 	mpt_write(mpt, MPT_OFFSET_SEQUENCE, 0xFFFFFFFF);
1012 }
1013 
1014 /* This is a magic diagnostic reset that resets all the ARM
1015  * processors in the chip.
1016  */
1017 static void
1018 mpt_hard_reset(struct mpt_softc *mpt)
1019 {
1020 	int error;
1021 	int wait;
1022 	uint32_t diagreg;
1023 
1024 	mpt_lprt(mpt, MPT_PRT_DEBUG, "hard reset\n");
1025 
1026 	error = mpt_enable_diag_mode(mpt);
1027 	if (error) {
1028 		mpt_prt(mpt, "WARNING - Could not enter diagnostic mode !\n");
1029 		mpt_prt(mpt, "Trying to reset anyway.\n");
1030 	}
1031 
1032 	diagreg = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
1033 
1034 	/*
1035 	 * This appears to be a workaround required for some
1036 	 * firmware or hardware revs.
1037 	 */
1038 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, diagreg | MPI_DIAG_DISABLE_ARM);
1039 	DELAY(1000);
1040 
1041 	/* Diag. port is now active so we can now hit the reset bit */
1042 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, diagreg | MPI_DIAG_RESET_ADAPTER);
1043 
1044         /*
1045          * Ensure that the reset has finished.  We delay 1ms
1046          * prior to reading the register to make sure the chip
1047          * has sufficiently completed its reset to handle register
1048          * accesses.
1049          */
1050 	wait = 5000;
1051 	do {
1052 		DELAY(1000);
1053 		diagreg = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
1054 	} while (--wait && (diagreg & MPI_DIAG_RESET_ADAPTER) == 0);
1055 
1056 	if (wait == 0) {
1057 		mpt_prt(mpt, "WARNING - Failed hard reset! "
1058 			"Trying to initialize anyway.\n");
1059 	}
1060 
1061 	/*
1062 	 * If we have firmware to download, it must be loaded before
1063 	 * the controller will become operational.  Do so now.
1064 	 */
1065 	if (mpt->fw_image != NULL) {
1066 
1067 		error = mpt_download_fw(mpt);
1068 
1069 		if (error) {
1070 			mpt_prt(mpt, "WARNING - Firmware Download Failed!\n");
1071 			mpt_prt(mpt, "Trying to initialize anyway.\n");
1072 		}
1073 	}
1074 
1075 	/*
1076 	 * Reseting the controller should have disabled write
1077 	 * access to the diagnostic registers, but disable
1078 	 * manually to be sure.
1079 	 */
1080 	mpt_disable_diag_mode(mpt);
1081 }
1082 
1083 static void
1084 mpt_core_ioc_reset(struct mpt_softc *mpt, int type)
1085 {
1086 	/*
1087 	 * Complete all pending requests with a status
1088 	 * appropriate for an IOC reset.
1089 	 */
1090 	mpt_complete_request_chain(mpt, &mpt->request_pending_list,
1091 				   MPI_IOCSTATUS_INVALID_STATE);
1092 }
1093 
1094 
1095 /*
1096  * Reset the IOC when needed. Try software command first then if needed
1097  * poke at the magic diagnostic reset. Note that a hard reset resets
1098  * *both* IOCs on dual function chips (FC929 && LSI1030) as well as
1099  * fouls up the PCI configuration registers.
1100  */
1101 int
1102 mpt_reset(struct mpt_softc *mpt, int reinit)
1103 {
1104 	struct	mpt_personality *pers;
1105 	int	ret;
1106 	int	retry_cnt = 0;
1107 
1108 	/*
1109 	 * Try a soft reset. If that fails, get out the big hammer.
1110 	 */
1111  again:
1112 	if ((ret = mpt_soft_reset(mpt)) != MPT_OK) {
1113 		int	cnt;
1114 		for (cnt = 0; cnt < 5; cnt++) {
1115 			/* Failed; do a hard reset */
1116 			mpt_hard_reset(mpt);
1117 
1118 			/*
1119 			 * Wait for the IOC to reload
1120 			 * and come out of reset state
1121 			 */
1122 			ret = mpt_wait_state(mpt, MPT_DB_STATE_READY);
1123 			if (ret == MPT_OK) {
1124 				break;
1125 			}
1126 			/*
1127 			 * Okay- try to check again...
1128 			 */
1129 			ret = mpt_wait_state(mpt, MPT_DB_STATE_READY);
1130 			if (ret == MPT_OK) {
1131 				break;
1132 			}
1133 			mpt_prt(mpt, "mpt_reset: failed hard reset (%d:%d)\n",
1134 			    retry_cnt, cnt);
1135 		}
1136 	}
1137 
1138 	if (retry_cnt == 0) {
1139 		/*
1140 		 * Invoke reset handlers.  We bump the reset count so
1141 		 * that mpt_wait_req() understands that regardless of
1142 		 * the specified wait condition, it should stop its wait.
1143 		 */
1144 		mpt->reset_cnt++;
1145 		MPT_PERS_FOREACH(mpt, pers)
1146 			pers->reset(mpt, ret);
1147 	}
1148 
1149 	if (reinit) {
1150 		ret = mpt_enable_ioc(mpt, 1);
1151 		if (ret == MPT_OK) {
1152 			mpt_enable_ints(mpt);
1153 		}
1154 	}
1155 	if (ret != MPT_OK && retry_cnt++ < 2) {
1156 		goto again;
1157 	}
1158 	return ret;
1159 }
1160 
1161 /* Return a command buffer to the free queue */
1162 void
1163 mpt_free_request(struct mpt_softc *mpt, request_t *req)
1164 {
1165 	request_t *nxt;
1166 	struct mpt_evtf_record *record;
1167 	uint32_t reply_baddr;
1168 
1169 	if (req == NULL || req != &mpt->request_pool[req->index]) {
1170 		panic("mpt_free_request bad req ptr\n");
1171 		return;
1172 	}
1173 	if ((nxt = req->chain) != NULL) {
1174 		req->chain = NULL;
1175 		mpt_free_request(mpt, nxt);	/* NB: recursion */
1176 	}
1177 	KASSERT(req->state != REQ_STATE_FREE, ("freeing free request"));
1178 	KASSERT(!(req->state & REQ_STATE_LOCKED), ("freeing locked request"));
1179 	MPT_LOCK_ASSERT(mpt);
1180 	KASSERT(mpt_req_on_free_list(mpt, req) == 0,
1181 	    ("mpt_free_request: req %p:%u func %x already on freelist",
1182 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1183 	KASSERT(mpt_req_on_pending_list(mpt, req) == 0,
1184 	    ("mpt_free_request: req %p:%u func %x on pending list",
1185 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1186 #ifdef	INVARIANTS
1187 	mpt_req_not_spcl(mpt, req, "mpt_free_request", __LINE__);
1188 #endif
1189 
1190 	req->ccb = NULL;
1191 	if (LIST_EMPTY(&mpt->ack_frames)) {
1192 		/*
1193 		 * Insert free ones at the tail
1194 		 */
1195 		req->serno = 0;
1196 		req->state = REQ_STATE_FREE;
1197 #ifdef	INVARIANTS
1198 		memset(req->req_vbuf, 0xff, sizeof (MSG_REQUEST_HEADER));
1199 #endif
1200 		TAILQ_INSERT_TAIL(&mpt->request_free_list, req, links);
1201 		if (mpt->getreqwaiter != 0) {
1202 			mpt->getreqwaiter = 0;
1203 			wakeup(&mpt->request_free_list);
1204 		}
1205 		return;
1206 	}
1207 
1208 	/*
1209 	 * Process an ack frame deferred due to resource shortage.
1210 	 */
1211 	record = LIST_FIRST(&mpt->ack_frames);
1212 	LIST_REMOVE(record, links);
1213 	req->state = REQ_STATE_ALLOCATED;
1214 	mpt_assign_serno(mpt, req);
1215 	mpt_send_event_ack(mpt, req, &record->reply, record->context);
1216 	reply_baddr = (uint32_t)((uint8_t *)record - mpt->reply)
1217 		    + (mpt->reply_phys & 0xFFFFFFFF);
1218 	mpt_free_reply(mpt, reply_baddr);
1219 }
1220 
1221 /* Get a command buffer from the free queue */
1222 request_t *
1223 mpt_get_request(struct mpt_softc *mpt, int sleep_ok)
1224 {
1225 	request_t *req;
1226 
1227 retry:
1228 	MPT_LOCK_ASSERT(mpt);
1229 	req = TAILQ_FIRST(&mpt->request_free_list);
1230 	if (req != NULL) {
1231 		KASSERT(req == &mpt->request_pool[req->index],
1232 		    ("mpt_get_request: corrupted request free list\n"));
1233 		KASSERT(req->state == REQ_STATE_FREE,
1234 		    ("req %p:%u not free on free list %x index %d function %x",
1235 		    req, req->serno, req->state, req->index,
1236 		    ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1237 		TAILQ_REMOVE(&mpt->request_free_list, req, links);
1238 		req->state = REQ_STATE_ALLOCATED;
1239 		req->chain = NULL;
1240 		mpt_assign_serno(mpt, req);
1241 	} else if (sleep_ok != 0) {
1242 		mpt->getreqwaiter = 1;
1243 		mpt_sleep(mpt, &mpt->request_free_list, PUSER, "mptgreq", 0);
1244 		goto retry;
1245 	}
1246 	return (req);
1247 }
1248 
1249 /* Pass the command to the IOC */
1250 void
1251 mpt_send_cmd(struct mpt_softc *mpt, request_t *req)
1252 {
1253 	if (mpt->verbose > MPT_PRT_DEBUG2) {
1254 		mpt_dump_request(mpt, req);
1255 	}
1256 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1257 	    BUS_DMASYNC_PREWRITE);
1258 	req->state |= REQ_STATE_QUEUED;
1259 	KASSERT(mpt_req_on_free_list(mpt, req) == 0,
1260 	    ("req %p:%u func %x on freelist list in mpt_send_cmd",
1261 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1262 	KASSERT(mpt_req_on_pending_list(mpt, req) == 0,
1263 	    ("req %p:%u func %x already on pending list in mpt_send_cmd",
1264 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1265 	TAILQ_INSERT_HEAD(&mpt->request_pending_list, req, links);
1266 	mpt_write(mpt, MPT_OFFSET_REQUEST_Q, (uint32_t) req->req_pbuf);
1267 }
1268 
1269 /*
1270  * Wait for a request to complete.
1271  *
1272  * Inputs:
1273  *	mpt		softc of controller executing request
1274  *	req		request to wait for
1275  *	sleep_ok	nonzero implies may sleep in this context
1276  *	time_ms		timeout in ms.  0 implies no timeout.
1277  *
1278  * Return Values:
1279  *	0		Request completed
1280  *	non-0		Timeout fired before request completion.
1281  */
1282 int
1283 mpt_wait_req(struct mpt_softc *mpt, request_t *req,
1284 	     mpt_req_state_t state, mpt_req_state_t mask,
1285 	     int sleep_ok, int time_ms)
1286 {
1287 	int   error;
1288 	int   timeout;
1289 	u_int saved_cnt;
1290 
1291 	/*
1292 	 * timeout is in ms.  0 indicates infinite wait.
1293 	 * Convert to ticks or 500us units depending on
1294 	 * our sleep mode.
1295 	 */
1296 	if (sleep_ok != 0) {
1297 		timeout = (time_ms * hz) / 1000;
1298 	} else {
1299 		timeout = time_ms * 2;
1300 	}
1301 	req->state |= REQ_STATE_NEED_WAKEUP;
1302 	mask &= ~REQ_STATE_NEED_WAKEUP;
1303 	saved_cnt = mpt->reset_cnt;
1304 	while ((req->state & mask) != state && mpt->reset_cnt == saved_cnt) {
1305 		if (sleep_ok != 0) {
1306 			error = mpt_sleep(mpt, req, PUSER, "mptreq", timeout);
1307 			if (error == EWOULDBLOCK) {
1308 				timeout = 0;
1309 				break;
1310 			}
1311 		} else {
1312 			if (time_ms != 0 && --timeout == 0) {
1313 				break;
1314 			}
1315 			DELAY(500);
1316 			mpt_intr(mpt);
1317 		}
1318 	}
1319 	req->state &= ~REQ_STATE_NEED_WAKEUP;
1320 	if (mpt->reset_cnt != saved_cnt) {
1321 		return (EIO);
1322 	}
1323 	if (time_ms && timeout <= 0) {
1324 		MSG_REQUEST_HEADER *msg_hdr = req->req_vbuf;
1325 		req->state |= REQ_STATE_TIMEDOUT;
1326 		mpt_prt(mpt, "mpt_wait_req(%x) timed out\n", msg_hdr->Function);
1327 		return (ETIMEDOUT);
1328 	}
1329 	return (0);
1330 }
1331 
1332 /*
1333  * Send a command to the IOC via the handshake register.
1334  *
1335  * Only done at initialization time and for certain unusual
1336  * commands such as device/bus reset as specified by LSI.
1337  */
1338 int
1339 mpt_send_handshake_cmd(struct mpt_softc *mpt, size_t len, void *cmd)
1340 {
1341 	int i;
1342 	uint32_t data, *data32;
1343 
1344 	/* Check condition of the IOC */
1345 	data = mpt_rd_db(mpt);
1346 	if ((MPT_STATE(data) != MPT_DB_STATE_READY
1347 	  && MPT_STATE(data) != MPT_DB_STATE_RUNNING
1348 	  && MPT_STATE(data) != MPT_DB_STATE_FAULT)
1349 	 || MPT_DB_IS_IN_USE(data)) {
1350 		mpt_prt(mpt, "handshake aborted - invalid doorbell state\n");
1351 		mpt_print_db(data);
1352 		return (EBUSY);
1353 	}
1354 
1355 	/* We move things in 32 bit chunks */
1356 	len = (len + 3) >> 2;
1357 	data32 = cmd;
1358 
1359 	/* Clear any left over pending doorbell interrupts */
1360 	if (MPT_DB_INTR(mpt_rd_intr(mpt)))
1361 		mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1362 
1363 	/*
1364 	 * Tell the handshake reg. we are going to send a command
1365          * and how long it is going to be.
1366 	 */
1367 	data = (MPI_FUNCTION_HANDSHAKE << MPI_DOORBELL_FUNCTION_SHIFT) |
1368 	    (len << MPI_DOORBELL_ADD_DWORDS_SHIFT);
1369 	mpt_write(mpt, MPT_OFFSET_DOORBELL, data);
1370 
1371 	/* Wait for the chip to notice */
1372 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1373 		mpt_prt(mpt, "mpt_send_handshake_cmd: db ignored\n");
1374 		return (ETIMEDOUT);
1375 	}
1376 
1377 	/* Clear the interrupt */
1378 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1379 
1380 	if (mpt_wait_db_ack(mpt) != MPT_OK) {
1381 		mpt_prt(mpt, "mpt_send_handshake_cmd: db ack timed out\n");
1382 		return (ETIMEDOUT);
1383 	}
1384 
1385 	/* Send the command */
1386 	for (i = 0; i < len; i++) {
1387 		mpt_write(mpt, MPT_OFFSET_DOORBELL, htole32(*data32++));
1388 		if (mpt_wait_db_ack(mpt) != MPT_OK) {
1389 			mpt_prt(mpt,
1390 			    "mpt_send_handshake_cmd: timeout @ index %d\n", i);
1391 			return (ETIMEDOUT);
1392 		}
1393 	}
1394 	return MPT_OK;
1395 }
1396 
1397 /* Get the response from the handshake register */
1398 int
1399 mpt_recv_handshake_reply(struct mpt_softc *mpt, size_t reply_len, void *reply)
1400 {
1401 	int left, reply_left;
1402 	u_int16_t *data16;
1403 	uint32_t data;
1404 	MSG_DEFAULT_REPLY *hdr;
1405 
1406 	/* We move things out in 16 bit chunks */
1407 	reply_len >>= 1;
1408 	data16 = (u_int16_t *)reply;
1409 
1410 	hdr = (MSG_DEFAULT_REPLY *)reply;
1411 
1412 	/* Get first word */
1413 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1414 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout1\n");
1415 		return ETIMEDOUT;
1416 	}
1417 	data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1418 	*data16++ = le16toh(data & MPT_DB_DATA_MASK);
1419 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1420 
1421 	/* Get Second Word */
1422 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1423 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout2\n");
1424 		return ETIMEDOUT;
1425 	}
1426 	data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1427 	*data16++ = le16toh(data & MPT_DB_DATA_MASK);
1428 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1429 
1430 	/*
1431 	 * With the second word, we can now look at the length.
1432 	 * Warn about a reply that's too short (except for IOC FACTS REPLY)
1433 	 */
1434 	if ((reply_len >> 1) != hdr->MsgLength &&
1435 	    (hdr->Function != MPI_FUNCTION_IOC_FACTS)){
1436 #if __FreeBSD_version >= 500000
1437 		mpt_prt(mpt, "reply length does not match message length: "
1438 			"got %x; expected %zx for function %x\n",
1439 			hdr->MsgLength << 2, reply_len << 1, hdr->Function);
1440 #else
1441 		mpt_prt(mpt, "reply length does not match message length: "
1442 			"got %x; expected %x for function %x\n",
1443 			hdr->MsgLength << 2, reply_len << 1, hdr->Function);
1444 #endif
1445 	}
1446 
1447 	/* Get rest of the reply; but don't overflow the provided buffer */
1448 	left = (hdr->MsgLength << 1) - 2;
1449 	reply_left =  reply_len - 2;
1450 	while (left--) {
1451 		u_int16_t datum;
1452 
1453 		if (mpt_wait_db_int(mpt) != MPT_OK) {
1454 			mpt_prt(mpt, "mpt_recv_handshake_cmd timeout3\n");
1455 			return ETIMEDOUT;
1456 		}
1457 		data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1458 		datum = le16toh(data & MPT_DB_DATA_MASK);
1459 
1460 		if (reply_left-- > 0)
1461 			*data16++ = datum;
1462 
1463 		mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1464 	}
1465 
1466 	/* One more wait & clear at the end */
1467 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1468 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout4\n");
1469 		return ETIMEDOUT;
1470 	}
1471 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1472 
1473 	if ((hdr->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1474 		if (mpt->verbose >= MPT_PRT_TRACE)
1475 			mpt_print_reply(hdr);
1476 		return (MPT_FAIL | hdr->IOCStatus);
1477 	}
1478 
1479 	return (0);
1480 }
1481 
1482 static int
1483 mpt_get_iocfacts(struct mpt_softc *mpt, MSG_IOC_FACTS_REPLY *freplp)
1484 {
1485 	MSG_IOC_FACTS f_req;
1486 	int error;
1487 
1488 	memset(&f_req, 0, sizeof f_req);
1489 	f_req.Function = MPI_FUNCTION_IOC_FACTS;
1490 	f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1491 	error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
1492 	if (error) {
1493 		return(error);
1494 	}
1495 	error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
1496 	return (error);
1497 }
1498 
1499 static int
1500 mpt_get_portfacts(struct mpt_softc *mpt, U8 port, MSG_PORT_FACTS_REPLY *freplp)
1501 {
1502 	MSG_PORT_FACTS f_req;
1503 	int error;
1504 
1505 	memset(&f_req, 0, sizeof f_req);
1506 	f_req.Function = MPI_FUNCTION_PORT_FACTS;
1507 	f_req.PortNumber = port;
1508 	f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1509 	error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
1510 	if (error) {
1511 		return(error);
1512 	}
1513 	error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
1514 	return (error);
1515 }
1516 
1517 /*
1518  * Send the initialization request. This is where we specify how many
1519  * SCSI busses and how many devices per bus we wish to emulate.
1520  * This is also the command that specifies the max size of the reply
1521  * frames from the IOC that we will be allocating.
1522  */
1523 static int
1524 mpt_send_ioc_init(struct mpt_softc *mpt, uint32_t who)
1525 {
1526 	int error = 0;
1527 	MSG_IOC_INIT init;
1528 	MSG_IOC_INIT_REPLY reply;
1529 
1530 	memset(&init, 0, sizeof init);
1531 	init.WhoInit = who;
1532 	init.Function = MPI_FUNCTION_IOC_INIT;
1533 	init.MaxDevices = 0;	/* at least 256 devices per bus */
1534 	init.MaxBuses = 16;	/* at least 16 busses */
1535 
1536 	init.MsgVersion = htole16(MPI_VERSION);
1537 	init.HeaderVersion = htole16(MPI_HEADER_VERSION);
1538 	init.ReplyFrameSize = htole16(MPT_REPLY_SIZE);
1539 	init.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1540 
1541 	if ((error = mpt_send_handshake_cmd(mpt, sizeof init, &init)) != 0) {
1542 		return(error);
1543 	}
1544 
1545 	error = mpt_recv_handshake_reply(mpt, sizeof reply, &reply);
1546 	return (error);
1547 }
1548 
1549 
1550 /*
1551  * Utiltity routine to read configuration headers and pages
1552  */
1553 int
1554 mpt_issue_cfg_req(struct mpt_softc *mpt, request_t *req, cfgparms_t *params,
1555 		  bus_addr_t addr, bus_size_t len, int sleep_ok, int timeout_ms)
1556 {
1557 	MSG_CONFIG *cfgp;
1558 	SGE_SIMPLE32 *se;
1559 
1560 	cfgp = req->req_vbuf;
1561 	memset(cfgp, 0, sizeof *cfgp);
1562 	cfgp->Action = params->Action;
1563 	cfgp->Function = MPI_FUNCTION_CONFIG;
1564 	cfgp->Header.PageVersion = params->PageVersion;
1565 	cfgp->Header.PageNumber = params->PageNumber;
1566 	cfgp->PageAddress = htole32(params->PageAddress);
1567 	if ((params->PageType & MPI_CONFIG_PAGETYPE_MASK) ==
1568 	    MPI_CONFIG_PAGETYPE_EXTENDED) {
1569 		cfgp->Header.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1570 		cfgp->Header.PageLength = 0;
1571 		cfgp->ExtPageLength = htole16(params->ExtPageLength);
1572 		cfgp->ExtPageType = params->ExtPageType;
1573 	} else {
1574 		cfgp->Header.PageType = params->PageType;
1575 		cfgp->Header.PageLength = params->PageLength;
1576 	}
1577 	se = (SGE_SIMPLE32 *)&cfgp->PageBufferSGE;
1578 	se->Address = htole32(addr);
1579 	MPI_pSGE_SET_LENGTH(se, len);
1580 	MPI_pSGE_SET_FLAGS(se, (MPI_SGE_FLAGS_SIMPLE_ELEMENT |
1581 	    MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1582 	    MPI_SGE_FLAGS_END_OF_LIST |
1583 	    ((params->Action == MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT
1584 	  || params->Action == MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM)
1585 	   ? MPI_SGE_FLAGS_HOST_TO_IOC : MPI_SGE_FLAGS_IOC_TO_HOST)));
1586 	se->FlagsLength = htole32(se->FlagsLength);
1587 	cfgp->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_CONFIG);
1588 
1589 	mpt_check_doorbell(mpt);
1590 	mpt_send_cmd(mpt, req);
1591 	return (mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE,
1592 			     sleep_ok, timeout_ms));
1593 }
1594 
1595 int
1596 mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion, int PageNumber,
1597 		       uint32_t PageAddress, int ExtPageType,
1598 		       CONFIG_EXTENDED_PAGE_HEADER *rslt,
1599 		       int sleep_ok, int timeout_ms)
1600 {
1601 	request_t  *req;
1602 	cfgparms_t params;
1603 	MSG_CONFIG_REPLY *cfgp;
1604 	int	    error;
1605 
1606 	req = mpt_get_request(mpt, sleep_ok);
1607 	if (req == NULL) {
1608 		mpt_prt(mpt, "mpt_extread_cfg_header: Get request failed!\n");
1609 		return (ENOMEM);
1610 	}
1611 
1612 	params.Action = MPI_CONFIG_ACTION_PAGE_HEADER;
1613 	params.PageVersion = PageVersion;
1614 	params.PageLength = 0;
1615 	params.PageNumber = PageNumber;
1616 	params.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1617 	params.PageAddress = PageAddress;
1618 	params.ExtPageType = ExtPageType;
1619 	params.ExtPageLength = 0;
1620 	error = mpt_issue_cfg_req(mpt, req, &params, /*addr*/0, /*len*/0,
1621 				  sleep_ok, timeout_ms);
1622 	if (error != 0) {
1623 		/*
1624 		 * Leave the request. Without resetting the chip, it's
1625 		 * still owned by it and we'll just get into trouble
1626 		 * freeing it now. Mark it as abandoned so that if it
1627 		 * shows up later it can be freed.
1628 		 */
1629 		mpt_prt(mpt, "read_extcfg_header timed out\n");
1630 		return (ETIMEDOUT);
1631 	}
1632 
1633         switch (req->IOCStatus & MPI_IOCSTATUS_MASK) {
1634 	case MPI_IOCSTATUS_SUCCESS:
1635 		cfgp = req->req_vbuf;
1636 		rslt->PageVersion = cfgp->Header.PageVersion;
1637 		rslt->PageNumber = cfgp->Header.PageNumber;
1638 		rslt->PageType = cfgp->Header.PageType;
1639 		rslt->ExtPageLength = le16toh(cfgp->ExtPageLength);
1640 		rslt->ExtPageType = cfgp->ExtPageType;
1641 		error = 0;
1642 		break;
1643 	case MPI_IOCSTATUS_CONFIG_INVALID_PAGE:
1644 		mpt_lprt(mpt, MPT_PRT_DEBUG,
1645 		    "Invalid Page Type %d Number %d Addr 0x%0x\n",
1646 		    MPI_CONFIG_PAGETYPE_EXTENDED, PageNumber, PageAddress);
1647 		error = EINVAL;
1648 		break;
1649 	default:
1650 		mpt_prt(mpt, "mpt_read_extcfg_header: Config Info Status %x\n",
1651 			req->IOCStatus);
1652 		error = EIO;
1653 		break;
1654 	}
1655 	mpt_free_request(mpt, req);
1656 	return (error);
1657 }
1658 
1659 int
1660 mpt_read_extcfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1661 		     CONFIG_EXTENDED_PAGE_HEADER *hdr, void *buf, size_t len,
1662 		     int sleep_ok, int timeout_ms)
1663 {
1664 	request_t    *req;
1665 	cfgparms_t    params;
1666 	int	      error;
1667 
1668 	req = mpt_get_request(mpt, sleep_ok);
1669 	if (req == NULL) {
1670 		mpt_prt(mpt, "mpt_read_extcfg_page: Get request failed!\n");
1671 		return (-1);
1672 	}
1673 
1674 	params.Action = Action;
1675 	params.PageVersion = hdr->PageVersion;
1676 	params.PageLength = 0;
1677 	params.PageNumber = hdr->PageNumber;
1678 	params.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1679 	params.PageAddress = PageAddress;
1680 	params.ExtPageType = hdr->ExtPageType;
1681 	params.ExtPageLength = hdr->ExtPageLength;
1682 	error = mpt_issue_cfg_req(mpt, req, &params,
1683 				  req->req_pbuf + MPT_RQSL(mpt),
1684 				  len, sleep_ok, timeout_ms);
1685 	if (error != 0) {
1686 		mpt_prt(mpt, "read_extcfg_page(%d) timed out\n", Action);
1687 		return (-1);
1688 	}
1689 
1690 	if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1691 		mpt_prt(mpt, "mpt_read_extcfg_page: Config Info Status %x\n",
1692 			req->IOCStatus);
1693 		mpt_free_request(mpt, req);
1694 		return (-1);
1695 	}
1696 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1697 	    BUS_DMASYNC_POSTREAD);
1698 	memcpy(buf, ((uint8_t *)req->req_vbuf)+MPT_RQSL(mpt), len);
1699 	mpt_free_request(mpt, req);
1700 	return (0);
1701 }
1702 
1703 int
1704 mpt_read_cfg_header(struct mpt_softc *mpt, int PageType, int PageNumber,
1705 		    uint32_t PageAddress, CONFIG_PAGE_HEADER *rslt,
1706 		    int sleep_ok, int timeout_ms)
1707 {
1708 	request_t  *req;
1709 	cfgparms_t params;
1710 	MSG_CONFIG *cfgp;
1711 	int	    error;
1712 
1713 	req = mpt_get_request(mpt, sleep_ok);
1714 	if (req == NULL) {
1715 		mpt_prt(mpt, "mpt_read_cfg_header: Get request failed!\n");
1716 		return (ENOMEM);
1717 	}
1718 
1719 	params.Action = MPI_CONFIG_ACTION_PAGE_HEADER;
1720 	params.PageVersion = 0;
1721 	params.PageLength = 0;
1722 	params.PageNumber = PageNumber;
1723 	params.PageType = PageType;
1724 	params.PageAddress = PageAddress;
1725 	error = mpt_issue_cfg_req(mpt, req, &params, /*addr*/0, /*len*/0,
1726 				  sleep_ok, timeout_ms);
1727 	if (error != 0) {
1728 		/*
1729 		 * Leave the request. Without resetting the chip, it's
1730 		 * still owned by it and we'll just get into trouble
1731 		 * freeing it now. Mark it as abandoned so that if it
1732 		 * shows up later it can be freed.
1733 		 */
1734 		mpt_prt(mpt, "read_cfg_header timed out\n");
1735 		return (ETIMEDOUT);
1736 	}
1737 
1738         switch (req->IOCStatus & MPI_IOCSTATUS_MASK) {
1739 	case MPI_IOCSTATUS_SUCCESS:
1740 		cfgp = req->req_vbuf;
1741 		bcopy(&cfgp->Header, rslt, sizeof(*rslt));
1742 		error = 0;
1743 		break;
1744 	case MPI_IOCSTATUS_CONFIG_INVALID_PAGE:
1745 		mpt_lprt(mpt, MPT_PRT_DEBUG,
1746 		    "Invalid Page Type %d Number %d Addr 0x%0x\n",
1747 		    PageType, PageNumber, PageAddress);
1748 		error = EINVAL;
1749 		break;
1750 	default:
1751 		mpt_prt(mpt, "mpt_read_cfg_header: Config Info Status %x\n",
1752 			req->IOCStatus);
1753 		error = EIO;
1754 		break;
1755 	}
1756 	mpt_free_request(mpt, req);
1757 	return (error);
1758 }
1759 
1760 int
1761 mpt_read_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1762 		  CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1763 		  int timeout_ms)
1764 {
1765 	request_t    *req;
1766 	cfgparms_t    params;
1767 	int	      error;
1768 
1769 	req = mpt_get_request(mpt, sleep_ok);
1770 	if (req == NULL) {
1771 		mpt_prt(mpt, "mpt_read_cfg_page: Get request failed!\n");
1772 		return (-1);
1773 	}
1774 
1775 	params.Action = Action;
1776 	params.PageVersion = hdr->PageVersion;
1777 	params.PageLength = hdr->PageLength;
1778 	params.PageNumber = hdr->PageNumber;
1779 	params.PageType = hdr->PageType & MPI_CONFIG_PAGETYPE_MASK;
1780 	params.PageAddress = PageAddress;
1781 	error = mpt_issue_cfg_req(mpt, req, &params,
1782 				  req->req_pbuf + MPT_RQSL(mpt),
1783 				  len, sleep_ok, timeout_ms);
1784 	if (error != 0) {
1785 		mpt_prt(mpt, "read_cfg_page(%d) timed out\n", Action);
1786 		return (-1);
1787 	}
1788 
1789 	if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1790 		mpt_prt(mpt, "mpt_read_cfg_page: Config Info Status %x\n",
1791 			req->IOCStatus);
1792 		mpt_free_request(mpt, req);
1793 		return (-1);
1794 	}
1795 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1796 	    BUS_DMASYNC_POSTREAD);
1797 	memcpy(hdr, ((uint8_t *)req->req_vbuf)+MPT_RQSL(mpt), len);
1798 	mpt_free_request(mpt, req);
1799 	return (0);
1800 }
1801 
1802 int
1803 mpt_write_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1804 		   CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1805 		   int timeout_ms)
1806 {
1807 	request_t    *req;
1808 	cfgparms_t    params;
1809 	u_int	      hdr_attr;
1810 	int	      error;
1811 
1812 	hdr_attr = hdr->PageType & MPI_CONFIG_PAGEATTR_MASK;
1813 	if (hdr_attr != MPI_CONFIG_PAGEATTR_CHANGEABLE &&
1814 	    hdr_attr != MPI_CONFIG_PAGEATTR_PERSISTENT) {
1815 		mpt_prt(mpt, "page type 0x%x not changeable\n",
1816 			hdr->PageType & MPI_CONFIG_PAGETYPE_MASK);
1817 		return (-1);
1818 	}
1819 
1820 #if	0
1821 	/*
1822 	 * We shouldn't mask off other bits here.
1823 	 */
1824 	hdr->PageType &= MPI_CONFIG_PAGETYPE_MASK;
1825 #endif
1826 
1827 	req = mpt_get_request(mpt, sleep_ok);
1828 	if (req == NULL)
1829 		return (-1);
1830 
1831 	memcpy(((caddr_t)req->req_vbuf) + MPT_RQSL(mpt), hdr, len);
1832 
1833 	/*
1834 	 * There isn't any point in restoring stripped out attributes
1835 	 * if you then mask them going down to issue the request.
1836 	 */
1837 
1838 	params.Action = Action;
1839 	params.PageVersion = hdr->PageVersion;
1840 	params.PageLength = hdr->PageLength;
1841 	params.PageNumber = hdr->PageNumber;
1842 	params.PageAddress = PageAddress;
1843 #if	0
1844 	/* Restore stripped out attributes */
1845 	hdr->PageType |= hdr_attr;
1846 	params.PageType = hdr->PageType & MPI_CONFIG_PAGETYPE_MASK;
1847 #else
1848 	params.PageType = hdr->PageType;
1849 #endif
1850 	error = mpt_issue_cfg_req(mpt, req, &params,
1851 				  req->req_pbuf + MPT_RQSL(mpt),
1852 				  len, sleep_ok, timeout_ms);
1853 	if (error != 0) {
1854 		mpt_prt(mpt, "mpt_write_cfg_page timed out\n");
1855 		return (-1);
1856 	}
1857 
1858         if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1859 		mpt_prt(mpt, "mpt_write_cfg_page: Config Info Status %x\n",
1860 			req->IOCStatus);
1861 		mpt_free_request(mpt, req);
1862 		return (-1);
1863 	}
1864 	mpt_free_request(mpt, req);
1865 	return (0);
1866 }
1867 
1868 /*
1869  * Read IOC configuration information
1870  */
1871 static int
1872 mpt_read_config_info_ioc(struct mpt_softc *mpt)
1873 {
1874 	CONFIG_PAGE_HEADER hdr;
1875 	struct mpt_raid_volume *mpt_raid;
1876 	int rv;
1877 	int i;
1878 	size_t len;
1879 
1880 	rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
1881 		2, 0, &hdr, FALSE, 5000);
1882 	/*
1883 	 * If it's an invalid page, so what? Not a supported function....
1884 	 */
1885 	if (rv == EINVAL) {
1886 		return (0);
1887 	}
1888 	if (rv) {
1889 		return (rv);
1890 	}
1891 
1892 	mpt_lprt(mpt, MPT_PRT_DEBUG,
1893 	    "IOC Page 2 Header: Version %x len %x PageNumber %x PageType %x\n",
1894 	    hdr.PageVersion, hdr.PageLength << 2,
1895 	    hdr.PageNumber, hdr.PageType);
1896 
1897 	len = hdr.PageLength * sizeof(uint32_t);
1898 	mpt->ioc_page2 = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1899 	if (mpt->ioc_page2 == NULL) {
1900 		mpt_prt(mpt, "unable to allocate memory for IOC page 2\n");
1901 		mpt_raid_free_mem(mpt);
1902 		return (ENOMEM);
1903 	}
1904 	memcpy(&mpt->ioc_page2->Header, &hdr, sizeof(hdr));
1905 	rv = mpt_read_cur_cfg_page(mpt, 0,
1906 	    &mpt->ioc_page2->Header, len, FALSE, 5000);
1907 	if (rv) {
1908 		mpt_prt(mpt, "failed to read IOC Page 2\n");
1909 		mpt_raid_free_mem(mpt);
1910 		return (EIO);
1911 	}
1912 	mpt2host_config_page_ioc2(mpt->ioc_page2);
1913 
1914 	if (mpt->ioc_page2->CapabilitiesFlags != 0) {
1915 		uint32_t mask;
1916 
1917 		mpt_prt(mpt, "Capabilities: (");
1918 		for (mask = 1; mask != 0; mask <<= 1) {
1919 			if ((mpt->ioc_page2->CapabilitiesFlags & mask) == 0) {
1920 				continue;
1921 			}
1922 			switch (mask) {
1923 			case MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT:
1924 				mpt_prtc(mpt, " RAID-0");
1925 				break;
1926 			case MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT:
1927 				mpt_prtc(mpt, " RAID-1E");
1928 				break;
1929 			case MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT:
1930 				mpt_prtc(mpt, " RAID-1");
1931 				break;
1932 			case MPI_IOCPAGE2_CAP_FLAGS_SES_SUPPORT:
1933 				mpt_prtc(mpt, " SES");
1934 				break;
1935 			case MPI_IOCPAGE2_CAP_FLAGS_SAFTE_SUPPORT:
1936 				mpt_prtc(mpt, " SAFTE");
1937 				break;
1938 			case MPI_IOCPAGE2_CAP_FLAGS_CROSS_CHANNEL_SUPPORT:
1939 				mpt_prtc(mpt, " Multi-Channel-Arrays");
1940 			default:
1941 				break;
1942 			}
1943 		}
1944 		mpt_prtc(mpt, " )\n");
1945 		if ((mpt->ioc_page2->CapabilitiesFlags
1946 		   & (MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT
1947 		    | MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT
1948 		    | MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT)) != 0) {
1949 			mpt_prt(mpt, "%d Active Volume%s(%d Max)\n",
1950 				mpt->ioc_page2->NumActiveVolumes,
1951 				mpt->ioc_page2->NumActiveVolumes != 1
1952 			      ? "s " : " ",
1953 				mpt->ioc_page2->MaxVolumes);
1954 			mpt_prt(mpt, "%d Hidden Drive Member%s(%d Max)\n",
1955 				mpt->ioc_page2->NumActivePhysDisks,
1956 				mpt->ioc_page2->NumActivePhysDisks != 1
1957 			      ? "s " : " ",
1958 				mpt->ioc_page2->MaxPhysDisks);
1959 		}
1960 	}
1961 
1962 	len = mpt->ioc_page2->MaxVolumes * sizeof(struct mpt_raid_volume);
1963 	mpt->raid_volumes = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1964 	if (mpt->raid_volumes == NULL) {
1965 		mpt_prt(mpt, "Could not allocate RAID volume data\n");
1966 		mpt_raid_free_mem(mpt);
1967 		return (ENOMEM);
1968 	}
1969 
1970 	/*
1971 	 * Copy critical data out of ioc_page2 so that we can
1972 	 * safely refresh the page without windows of unreliable
1973 	 * data.
1974 	 */
1975 	mpt->raid_max_volumes =  mpt->ioc_page2->MaxVolumes;
1976 
1977 	len = sizeof(*mpt->raid_volumes->config_page) +
1978 	    (sizeof (RAID_VOL0_PHYS_DISK) * (mpt->ioc_page2->MaxPhysDisks - 1));
1979 	for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
1980 		mpt_raid = &mpt->raid_volumes[i];
1981 		mpt_raid->config_page =
1982 		    malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1983 		if (mpt_raid->config_page == NULL) {
1984 			mpt_prt(mpt, "Could not allocate RAID page data\n");
1985 			mpt_raid_free_mem(mpt);
1986 			return (ENOMEM);
1987 		}
1988 	}
1989 	mpt->raid_page0_len = len;
1990 
1991 	len = mpt->ioc_page2->MaxPhysDisks * sizeof(struct mpt_raid_disk);
1992 	mpt->raid_disks = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1993 	if (mpt->raid_disks == NULL) {
1994 		mpt_prt(mpt, "Could not allocate RAID disk data\n");
1995 		mpt_raid_free_mem(mpt);
1996 		return (ENOMEM);
1997 	}
1998 	mpt->raid_max_disks =  mpt->ioc_page2->MaxPhysDisks;
1999 
2000 	/*
2001 	 * Load page 3.
2002 	 */
2003 	rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
2004 	    3, 0, &hdr, FALSE, 5000);
2005 	if (rv) {
2006 		mpt_raid_free_mem(mpt);
2007 		return (EIO);
2008 	}
2009 
2010 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC Page 3 Header: %x %x %x %x\n",
2011 	    hdr.PageVersion, hdr.PageLength, hdr.PageNumber, hdr.PageType);
2012 
2013 	len = hdr.PageLength * sizeof(uint32_t);
2014 	mpt->ioc_page3 = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
2015 	if (mpt->ioc_page3 == NULL) {
2016 		mpt_prt(mpt, "unable to allocate memory for IOC page 3\n");
2017 		mpt_raid_free_mem(mpt);
2018 		return (ENOMEM);
2019 	}
2020 	memcpy(&mpt->ioc_page3->Header, &hdr, sizeof(hdr));
2021 	rv = mpt_read_cur_cfg_page(mpt, 0,
2022 	    &mpt->ioc_page3->Header, len, FALSE, 5000);
2023 	if (rv) {
2024 		mpt_raid_free_mem(mpt);
2025 		return (EIO);
2026 	}
2027 	mpt2host_config_page_ioc3(mpt->ioc_page3);
2028 	mpt_raid_wakeup(mpt);
2029 	return (0);
2030 }
2031 
2032 /*
2033  * Enable IOC port
2034  */
2035 static int
2036 mpt_send_port_enable(struct mpt_softc *mpt, int port)
2037 {
2038 	request_t	*req;
2039 	MSG_PORT_ENABLE *enable_req;
2040 	int		 error;
2041 
2042 	req = mpt_get_request(mpt, /*sleep_ok*/FALSE);
2043 	if (req == NULL)
2044 		return (-1);
2045 
2046 	enable_req = req->req_vbuf;
2047 	memset(enable_req, 0,  MPT_RQSL(mpt));
2048 
2049 	enable_req->Function   = MPI_FUNCTION_PORT_ENABLE;
2050 	enable_req->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_CONFIG);
2051 	enable_req->PortNumber = port;
2052 
2053 	mpt_check_doorbell(mpt);
2054 	mpt_lprt(mpt, MPT_PRT_DEBUG, "enabling port %d\n", port);
2055 
2056 	mpt_send_cmd(mpt, req);
2057 	error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE,
2058 	    FALSE, (mpt->is_sas || mpt->is_fc)? 30000 : 3000);
2059 	if (error != 0) {
2060 		mpt_prt(mpt, "port %d enable timed out\n", port);
2061 		return (-1);
2062 	}
2063 	mpt_free_request(mpt, req);
2064 	mpt_lprt(mpt, MPT_PRT_DEBUG, "enabled port %d\n", port);
2065 	return (0);
2066 }
2067 
2068 /*
2069  * Enable/Disable asynchronous event reporting.
2070  */
2071 static int
2072 mpt_send_event_request(struct mpt_softc *mpt, int onoff)
2073 {
2074 	request_t *req;
2075 	MSG_EVENT_NOTIFY *enable_req;
2076 
2077 	req = mpt_get_request(mpt, FALSE);
2078 	if (req == NULL) {
2079 		return (ENOMEM);
2080 	}
2081 	enable_req = req->req_vbuf;
2082 	memset(enable_req, 0, sizeof *enable_req);
2083 
2084 	enable_req->Function   = MPI_FUNCTION_EVENT_NOTIFICATION;
2085 	enable_req->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_EVENTS);
2086 	enable_req->Switch     = onoff;
2087 
2088 	mpt_check_doorbell(mpt);
2089 	mpt_lprt(mpt, MPT_PRT_DEBUG, "%sabling async events\n",
2090 	    onoff ? "en" : "dis");
2091 	/*
2092 	 * Send the command off, but don't wait for it.
2093 	 */
2094 	mpt_send_cmd(mpt, req);
2095 	return (0);
2096 }
2097 
2098 /*
2099  * Un-mask the interrupts on the chip.
2100  */
2101 void
2102 mpt_enable_ints(struct mpt_softc *mpt)
2103 {
2104 	/* Unmask every thing except door bell int */
2105 	mpt_write(mpt, MPT_OFFSET_INTR_MASK, MPT_INTR_DB_MASK);
2106 }
2107 
2108 /*
2109  * Mask the interrupts on the chip.
2110  */
2111 void
2112 mpt_disable_ints(struct mpt_softc *mpt)
2113 {
2114 	/* Mask all interrupts */
2115 	mpt_write(mpt, MPT_OFFSET_INTR_MASK,
2116 	    MPT_INTR_REPLY_MASK | MPT_INTR_DB_MASK);
2117 }
2118 
2119 static void
2120 mpt_sysctl_attach(struct mpt_softc *mpt)
2121 {
2122 #if __FreeBSD_version >= 500000
2123 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(mpt->dev);
2124 	struct sysctl_oid *tree = device_get_sysctl_tree(mpt->dev);
2125 
2126 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
2127 		       "debug", CTLFLAG_RW, &mpt->verbose, 0,
2128 		       "Debugging/Verbose level");
2129 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
2130 		       "role", CTLFLAG_RD, &mpt->role, 0,
2131 		       "HBA role");
2132 #ifdef	MPT_TEST_MULTIPATH
2133 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
2134 		       "failure_id", CTLFLAG_RW, &mpt->failure_id, -1,
2135 		       "Next Target to Fail");
2136 #endif
2137 #endif
2138 }
2139 
2140 int
2141 mpt_attach(struct mpt_softc *mpt)
2142 {
2143 	struct mpt_personality *pers;
2144 	int i;
2145 	int error;
2146 
2147 	mpt_core_attach(mpt);
2148 	mpt_core_enable(mpt);
2149 
2150 	TAILQ_INSERT_TAIL(&mpt_tailq, mpt, links);
2151 	for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
2152 		pers = mpt_personalities[i];
2153 		if (pers == NULL) {
2154 			continue;
2155 		}
2156 		if (pers->probe(mpt) == 0) {
2157 			error = pers->attach(mpt);
2158 			if (error != 0) {
2159 				mpt_detach(mpt);
2160 				return (error);
2161 			}
2162 			mpt->mpt_pers_mask |= (0x1 << pers->id);
2163 			pers->use_count++;
2164 		}
2165 	}
2166 
2167 	/*
2168 	 * Now that we've attached everything, do the enable function
2169 	 * for all of the personalities. This allows the personalities
2170 	 * to do setups that are appropriate for them prior to enabling
2171 	 * any ports.
2172 	 */
2173 	for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
2174 		pers = mpt_personalities[i];
2175 		if (pers != NULL  && MPT_PERS_ATTACHED(pers, mpt) != 0) {
2176 			error = pers->enable(mpt);
2177 			if (error != 0) {
2178 				mpt_prt(mpt, "personality %s attached but would"
2179 				    " not enable (%d)\n", pers->name, error);
2180 				mpt_detach(mpt);
2181 				return (error);
2182 			}
2183 		}
2184 	}
2185 	return (0);
2186 }
2187 
2188 int
2189 mpt_shutdown(struct mpt_softc *mpt)
2190 {
2191 	struct mpt_personality *pers;
2192 
2193 	MPT_PERS_FOREACH_REVERSE(mpt, pers) {
2194 		pers->shutdown(mpt);
2195 	}
2196 	return (0);
2197 }
2198 
2199 int
2200 mpt_detach(struct mpt_softc *mpt)
2201 {
2202 	struct mpt_personality *pers;
2203 
2204 	MPT_PERS_FOREACH_REVERSE(mpt, pers) {
2205 		pers->detach(mpt);
2206 		mpt->mpt_pers_mask &= ~(0x1 << pers->id);
2207 		pers->use_count--;
2208 	}
2209 	TAILQ_REMOVE(&mpt_tailq, mpt, links);
2210 	return (0);
2211 }
2212 
2213 int
2214 mpt_core_load(struct mpt_personality *pers)
2215 {
2216 	int i;
2217 
2218 	/*
2219 	 * Setup core handlers and insert the default handler
2220 	 * into all "empty slots".
2221 	 */
2222 	for (i = 0; i < MPT_NUM_REPLY_HANDLERS; i++) {
2223 		mpt_reply_handlers[i] = mpt_default_reply_handler;
2224 	}
2225 
2226 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_EVENTS)] =
2227 	    mpt_event_reply_handler;
2228 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_CONFIG)] =
2229 	    mpt_config_reply_handler;
2230 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_HANDSHAKE)] =
2231 	    mpt_handshake_reply_handler;
2232 	return (0);
2233 }
2234 
2235 /*
2236  * Initialize per-instance driver data and perform
2237  * initial controller configuration.
2238  */
2239 int
2240 mpt_core_attach(struct mpt_softc *mpt)
2241 {
2242         int val, error;
2243 
2244 	LIST_INIT(&mpt->ack_frames);
2245 	/* Put all request buffers on the free list */
2246 	TAILQ_INIT(&mpt->request_pending_list);
2247 	TAILQ_INIT(&mpt->request_free_list);
2248 	TAILQ_INIT(&mpt->request_timeout_list);
2249 	MPT_LOCK(mpt);
2250 	for (val = 0; val < MPT_MAX_REQUESTS(mpt); val++) {
2251 		request_t *req = &mpt->request_pool[val];
2252 		req->state = REQ_STATE_ALLOCATED;
2253 		mpt_callout_init(mpt, &req->callout);
2254 		mpt_free_request(mpt, req);
2255 	}
2256 	MPT_UNLOCK(mpt);
2257 	for (val = 0; val < MPT_MAX_LUNS; val++) {
2258 		STAILQ_INIT(&mpt->trt[val].atios);
2259 		STAILQ_INIT(&mpt->trt[val].inots);
2260 	}
2261 	STAILQ_INIT(&mpt->trt_wildcard.atios);
2262 	STAILQ_INIT(&mpt->trt_wildcard.inots);
2263 #ifdef	MPT_TEST_MULTIPATH
2264 	mpt->failure_id = -1;
2265 #endif
2266 	mpt->scsi_tgt_handler_id = MPT_HANDLER_ID_NONE;
2267 	mpt_sysctl_attach(mpt);
2268 	mpt_lprt(mpt, MPT_PRT_DEBUG, "doorbell req = %s\n",
2269 	    mpt_ioc_diag(mpt_read(mpt, MPT_OFFSET_DOORBELL)));
2270 
2271 	MPT_LOCK(mpt);
2272 	error = mpt_configure_ioc(mpt, 0, 0);
2273 	MPT_UNLOCK(mpt);
2274 
2275 	return (error);
2276 }
2277 
2278 int
2279 mpt_core_enable(struct mpt_softc *mpt)
2280 {
2281 	/*
2282 	 * We enter with the IOC enabled, but async events
2283 	 * not enabled, ports not enabled and interrupts
2284 	 * not enabled.
2285 	 */
2286 	MPT_LOCK(mpt);
2287 
2288 	/*
2289 	 * Enable asynchronous event reporting- all personalities
2290 	 * have attached so that they should be able to now field
2291 	 * async events.
2292 	 */
2293 	mpt_send_event_request(mpt, 1);
2294 
2295 	/*
2296 	 * Catch any pending interrupts
2297 	 *
2298 	 * This seems to be crucial- otherwise
2299 	 * the portenable below times out.
2300 	 */
2301 	mpt_intr(mpt);
2302 
2303 	/*
2304 	 * Enable Interrupts
2305 	 */
2306 	mpt_enable_ints(mpt);
2307 
2308 	/*
2309 	 * Catch any pending interrupts
2310 	 *
2311 	 * This seems to be crucial- otherwise
2312 	 * the portenable below times out.
2313 	 */
2314 	mpt_intr(mpt);
2315 
2316 	/*
2317 	 * Enable the port.
2318 	 */
2319 	if (mpt_send_port_enable(mpt, 0) != MPT_OK) {
2320 		mpt_prt(mpt, "failed to enable port 0\n");
2321 		MPT_UNLOCK(mpt);
2322 		return (ENXIO);
2323 	}
2324 	MPT_UNLOCK(mpt);
2325 	return (0);
2326 }
2327 
2328 void
2329 mpt_core_shutdown(struct mpt_softc *mpt)
2330 {
2331 	mpt_disable_ints(mpt);
2332 }
2333 
2334 void
2335 mpt_core_detach(struct mpt_softc *mpt)
2336 {
2337 	int val;
2338 
2339 	/*
2340 	 * XXX: FREE MEMORY
2341 	 */
2342 	mpt_disable_ints(mpt);
2343 
2344 	/* Make sure no request has pending timeouts. */
2345 	for (val = 0; val < MPT_MAX_REQUESTS(mpt); val++) {
2346 		request_t *req = &mpt->request_pool[val];
2347 		mpt_callout_drain(mpt, &req->callout);
2348 	}
2349 }
2350 
2351 int
2352 mpt_core_unload(struct mpt_personality *pers)
2353 {
2354 	/* Unload is always successfull. */
2355 	return (0);
2356 }
2357 
2358 #define FW_UPLOAD_REQ_SIZE				\
2359 	(sizeof(MSG_FW_UPLOAD) - sizeof(SGE_MPI_UNION)	\
2360        + sizeof(FW_UPLOAD_TCSGE) + sizeof(SGE_SIMPLE32))
2361 
2362 static int
2363 mpt_upload_fw(struct mpt_softc *mpt)
2364 {
2365 	uint8_t fw_req_buf[FW_UPLOAD_REQ_SIZE];
2366 	MSG_FW_UPLOAD_REPLY fw_reply;
2367 	MSG_FW_UPLOAD *fw_req;
2368 	FW_UPLOAD_TCSGE *tsge;
2369 	SGE_SIMPLE32 *sge;
2370 	uint32_t flags;
2371 	int error;
2372 
2373 	memset(&fw_req_buf, 0, sizeof(fw_req_buf));
2374 	fw_req = (MSG_FW_UPLOAD *)fw_req_buf;
2375 	fw_req->ImageType = MPI_FW_UPLOAD_ITYPE_FW_IOC_MEM;
2376 	fw_req->Function = MPI_FUNCTION_FW_UPLOAD;
2377 	fw_req->MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
2378 	tsge = (FW_UPLOAD_TCSGE *)&fw_req->SGL;
2379 	tsge->DetailsLength = 12;
2380 	tsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
2381 	tsge->ImageSize = htole32(mpt->fw_image_size);
2382 	sge = (SGE_SIMPLE32 *)(tsge + 1);
2383 	flags = (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER
2384 	      | MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_SIMPLE_ELEMENT
2385 	      | MPI_SGE_FLAGS_32_BIT_ADDRESSING | MPI_SGE_FLAGS_IOC_TO_HOST);
2386 	flags <<= MPI_SGE_FLAGS_SHIFT;
2387 	sge->FlagsLength = htole32(flags | mpt->fw_image_size);
2388 	sge->Address = htole32(mpt->fw_phys);
2389 	error = mpt_send_handshake_cmd(mpt, sizeof(fw_req_buf), &fw_req_buf);
2390 	if (error)
2391 		return(error);
2392 	error = mpt_recv_handshake_reply(mpt, sizeof(fw_reply), &fw_reply);
2393 	return (error);
2394 }
2395 
2396 static void
2397 mpt_diag_outsl(struct mpt_softc *mpt, uint32_t addr,
2398 	       uint32_t *data, bus_size_t len)
2399 {
2400 	uint32_t *data_end;
2401 
2402 	data_end = data + (roundup2(len, sizeof(uint32_t)) / 4);
2403 	if (mpt->is_sas) {
2404 		pci_enable_io(mpt->dev, SYS_RES_IOPORT);
2405 	}
2406 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, addr);
2407 	while (data != data_end) {
2408 		mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, *data);
2409 		data++;
2410 	}
2411 	if (mpt->is_sas) {
2412 		pci_disable_io(mpt->dev, SYS_RES_IOPORT);
2413 	}
2414 }
2415 
2416 static int
2417 mpt_download_fw(struct mpt_softc *mpt)
2418 {
2419 	MpiFwHeader_t *fw_hdr;
2420 	int error;
2421 	uint32_t ext_offset;
2422 	uint32_t data;
2423 
2424 	mpt_prt(mpt, "Downloading Firmware - Image Size %d\n",
2425 		mpt->fw_image_size);
2426 
2427 	error = mpt_enable_diag_mode(mpt);
2428 	if (error != 0) {
2429 		mpt_prt(mpt, "Could not enter diagnostic mode!\n");
2430 		return (EIO);
2431 	}
2432 
2433 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC,
2434 		  MPI_DIAG_RW_ENABLE|MPI_DIAG_DISABLE_ARM);
2435 
2436 	fw_hdr = (MpiFwHeader_t *)mpt->fw_image;
2437 	mpt_diag_outsl(mpt, fw_hdr->LoadStartAddress, (uint32_t*)fw_hdr,
2438 		       fw_hdr->ImageSize);
2439 
2440 	ext_offset = fw_hdr->NextImageHeaderOffset;
2441 	while (ext_offset != 0) {
2442 		MpiExtImageHeader_t *ext;
2443 
2444 		ext = (MpiExtImageHeader_t *)((uintptr_t)fw_hdr + ext_offset);
2445 		ext_offset = ext->NextImageHeaderOffset;
2446 
2447 		mpt_diag_outsl(mpt, ext->LoadStartAddress, (uint32_t*)ext,
2448 			       ext->ImageSize);
2449 	}
2450 
2451 	if (mpt->is_sas) {
2452 		pci_enable_io(mpt->dev, SYS_RES_IOPORT);
2453 	}
2454 	/* Setup the address to jump to on reset. */
2455 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, fw_hdr->IopResetRegAddr);
2456 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, fw_hdr->IopResetVectorValue);
2457 
2458 	/*
2459 	 * The controller sets the "flash bad" status after attempting
2460 	 * to auto-boot from flash.  Clear the status so that the controller
2461 	 * will continue the boot process with our newly installed firmware.
2462 	 */
2463 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
2464 	data = mpt_pio_read(mpt, MPT_OFFSET_DIAG_DATA) | MPT_DIAG_MEM_CFG_BADFL;
2465 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
2466 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, data);
2467 
2468 	if (mpt->is_sas) {
2469 		pci_disable_io(mpt->dev, SYS_RES_IOPORT);
2470 	}
2471 
2472 	/*
2473 	 * Re-enable the processor and clear the boot halt flag.
2474 	 */
2475 	data = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
2476 	data &= ~(MPI_DIAG_PREVENT_IOC_BOOT|MPI_DIAG_DISABLE_ARM);
2477 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, data);
2478 
2479 	mpt_disable_diag_mode(mpt);
2480 	return (0);
2481 }
2482 
2483 /*
2484  * Allocate/Initialize data structures for the controller.  Called
2485  * once at instance startup.
2486  */
2487 static int
2488 mpt_configure_ioc(struct mpt_softc *mpt, int tn, int needreset)
2489 {
2490 	PTR_MSG_PORT_FACTS_REPLY pfp;
2491 	int error,  port;
2492 	size_t len;
2493 
2494 	if (tn == MPT_MAX_TRYS) {
2495 		return (-1);
2496 	}
2497 
2498 	/*
2499 	 * No need to reset if the IOC is already in the READY state.
2500 	 *
2501 	 * Force reset if initialization failed previously.
2502 	 * Note that a hard_reset of the second channel of a '929
2503 	 * will stop operation of the first channel.  Hopefully, if the
2504 	 * first channel is ok, the second will not require a hard
2505 	 * reset.
2506 	 */
2507 	if (needreset || MPT_STATE(mpt_rd_db(mpt)) != MPT_DB_STATE_READY) {
2508 		if (mpt_reset(mpt, FALSE) != MPT_OK) {
2509 			return (mpt_configure_ioc(mpt, tn++, 1));
2510 		}
2511 		needreset = 0;
2512 	}
2513 
2514 	if (mpt_get_iocfacts(mpt, &mpt->ioc_facts) != MPT_OK) {
2515 		mpt_prt(mpt, "mpt_get_iocfacts failed\n");
2516 		return (mpt_configure_ioc(mpt, tn++, 1));
2517 	}
2518 	mpt2host_iocfacts_reply(&mpt->ioc_facts);
2519 
2520 	mpt_prt(mpt, "MPI Version=%d.%d.%d.%d\n",
2521 	    mpt->ioc_facts.MsgVersion >> 8,
2522 	    mpt->ioc_facts.MsgVersion & 0xFF,
2523 	    mpt->ioc_facts.HeaderVersion >> 8,
2524 	    mpt->ioc_facts.HeaderVersion & 0xFF);
2525 
2526 	/*
2527 	 * Now that we know request frame size, we can calculate
2528 	 * the actual (reasonable) segment limit for read/write I/O.
2529 	 *
2530 	 * This limit is constrained by:
2531 	 *
2532 	 *  + The size of each area we allocate per command (and how
2533 	 *    many chain segments we can fit into it).
2534 	 *  + The total number of areas we've set up.
2535 	 *  + The actual chain depth the card will allow.
2536 	 *
2537 	 * The first area's segment count is limited by the I/O request
2538 	 * at the head of it. We cannot allocate realistically more
2539 	 * than MPT_MAX_REQUESTS areas. Therefore, to account for both
2540 	 * conditions, we'll just start out with MPT_MAX_REQUESTS-2.
2541 	 *
2542 	 */
2543 	/* total number of request areas we (can) allocate */
2544 	mpt->max_seg_cnt = MPT_MAX_REQUESTS(mpt) - 2;
2545 
2546 	/* converted to the number of chain areas possible */
2547 	mpt->max_seg_cnt *= MPT_NRFM(mpt);
2548 
2549 	/* limited by the number of chain areas the card will support */
2550 	if (mpt->max_seg_cnt > mpt->ioc_facts.MaxChainDepth) {
2551 		mpt_lprt(mpt, MPT_PRT_DEBUG,
2552 		    "chain depth limited to %u (from %u)\n",
2553 		    mpt->ioc_facts.MaxChainDepth, mpt->max_seg_cnt);
2554 		mpt->max_seg_cnt = mpt->ioc_facts.MaxChainDepth;
2555 	}
2556 
2557 	/* converted to the number of simple sges in chain segments. */
2558 	mpt->max_seg_cnt *= (MPT_NSGL(mpt) - 1);
2559 
2560 	mpt_lprt(mpt, MPT_PRT_DEBUG, "Maximum Segment Count: %u\n",
2561 	    mpt->max_seg_cnt);
2562 	mpt_lprt(mpt, MPT_PRT_DEBUG, "MsgLength=%u IOCNumber = %d\n",
2563 	    mpt->ioc_facts.MsgLength, mpt->ioc_facts.IOCNumber);
2564 	mpt_lprt(mpt, MPT_PRT_DEBUG,
2565 	    "IOCFACTS: GlobalCredits=%d BlockSize=%u bytes "
2566 	    "Request Frame Size %u bytes Max Chain Depth %u\n",
2567 	    mpt->ioc_facts.GlobalCredits, mpt->ioc_facts.BlockSize,
2568 	    mpt->ioc_facts.RequestFrameSize << 2,
2569 	    mpt->ioc_facts.MaxChainDepth);
2570 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOCFACTS: Num Ports %d, FWImageSize %d, "
2571 	    "Flags=%#x\n", mpt->ioc_facts.NumberOfPorts,
2572 	    mpt->ioc_facts.FWImageSize, mpt->ioc_facts.Flags);
2573 
2574 	len = mpt->ioc_facts.NumberOfPorts * sizeof (MSG_PORT_FACTS_REPLY);
2575 	mpt->port_facts = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
2576 	if (mpt->port_facts == NULL) {
2577 		mpt_prt(mpt, "unable to allocate memory for port facts\n");
2578 		return (ENOMEM);
2579 	}
2580 
2581 
2582 	if ((mpt->ioc_facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT) &&
2583 	    (mpt->fw_uploaded == 0)) {
2584 		struct mpt_map_info mi;
2585 
2586 		/*
2587 		 * In some configurations, the IOC's firmware is
2588 		 * stored in a shared piece of system NVRAM that
2589 		 * is only accessable via the BIOS.  In this
2590 		 * case, the firmware keeps a copy of firmware in
2591 		 * RAM until the OS driver retrieves it.  Once
2592 		 * retrieved, we are responsible for re-downloading
2593 		 * the firmware after any hard-reset.
2594 		 */
2595 		mpt->fw_image_size = mpt->ioc_facts.FWImageSize;
2596 		error = mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 0,
2597 		    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
2598 		    mpt->fw_image_size, 1, mpt->fw_image_size, 0,
2599 		    &mpt->fw_dmat);
2600 		if (error != 0) {
2601 			mpt_prt(mpt, "cannot create firmwarew dma tag\n");
2602 			return (ENOMEM);
2603 		}
2604 		error = bus_dmamem_alloc(mpt->fw_dmat,
2605 		    (void **)&mpt->fw_image, BUS_DMA_NOWAIT, &mpt->fw_dmap);
2606 		if (error != 0) {
2607 			mpt_prt(mpt, "cannot allocate firmware memory\n");
2608 			bus_dma_tag_destroy(mpt->fw_dmat);
2609 			return (ENOMEM);
2610 		}
2611 		mi.mpt = mpt;
2612 		mi.error = 0;
2613 		bus_dmamap_load(mpt->fw_dmat, mpt->fw_dmap,
2614 		    mpt->fw_image, mpt->fw_image_size, mpt_map_rquest, &mi, 0);
2615 		mpt->fw_phys = mi.phys;
2616 
2617 		error = mpt_upload_fw(mpt);
2618 		if (error != 0) {
2619 			mpt_prt(mpt, "firmware upload failed.\n");
2620 			bus_dmamap_unload(mpt->fw_dmat, mpt->fw_dmap);
2621 			bus_dmamem_free(mpt->fw_dmat, mpt->fw_image,
2622 			    mpt->fw_dmap);
2623 			bus_dma_tag_destroy(mpt->fw_dmat);
2624 			mpt->fw_image = NULL;
2625 			return (EIO);
2626 		}
2627 		mpt->fw_uploaded = 1;
2628 	}
2629 
2630 	for (port = 0; port < mpt->ioc_facts.NumberOfPorts; port++) {
2631 		pfp = &mpt->port_facts[port];
2632 		error = mpt_get_portfacts(mpt, 0, pfp);
2633 		if (error != MPT_OK) {
2634 			mpt_prt(mpt,
2635 			    "mpt_get_portfacts on port %d failed\n", port);
2636 			free(mpt->port_facts, M_DEVBUF);
2637 			mpt->port_facts = NULL;
2638 			return (mpt_configure_ioc(mpt, tn++, 1));
2639 		}
2640 		mpt2host_portfacts_reply(pfp);
2641 
2642 		if (port > 0) {
2643 			error = MPT_PRT_INFO;
2644 		} else {
2645 			error = MPT_PRT_DEBUG;
2646 		}
2647 		mpt_lprt(mpt, error,
2648 		    "PORTFACTS[%d]: Type %x PFlags %x IID %d MaxDev %d\n",
2649 		    port, pfp->PortType, pfp->ProtocolFlags, pfp->PortSCSIID,
2650 		    pfp->MaxDevices);
2651 
2652 	}
2653 
2654 	/*
2655 	 * XXX: Not yet supporting more than port 0
2656 	 */
2657 	pfp = &mpt->port_facts[0];
2658 	if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_FC) {
2659 		mpt->is_fc = 1;
2660 		mpt->is_sas = 0;
2661 		mpt->is_spi = 0;
2662 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_SAS) {
2663 		mpt->is_fc = 0;
2664 		mpt->is_sas = 1;
2665 		mpt->is_spi = 0;
2666 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_SCSI) {
2667 		mpt->is_fc = 0;
2668 		mpt->is_sas = 0;
2669 		mpt->is_spi = 1;
2670 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_ISCSI) {
2671 		mpt_prt(mpt, "iSCSI not supported yet\n");
2672 		return (ENXIO);
2673 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_INACTIVE) {
2674 		mpt_prt(mpt, "Inactive Port\n");
2675 		return (ENXIO);
2676 	} else {
2677 		mpt_prt(mpt, "unknown Port Type %#x\n", pfp->PortType);
2678 		return (ENXIO);
2679 	}
2680 
2681 	/*
2682 	 * Set our role with what this port supports.
2683 	 *
2684 	 * Note this might be changed later in different modules
2685 	 * if this is different from what is wanted.
2686 	 */
2687 	mpt->role = MPT_ROLE_NONE;
2688 	if (pfp->ProtocolFlags & MPI_PORTFACTS_PROTOCOL_INITIATOR) {
2689 		mpt->role |= MPT_ROLE_INITIATOR;
2690 	}
2691 	if (pfp->ProtocolFlags & MPI_PORTFACTS_PROTOCOL_TARGET) {
2692 		mpt->role |= MPT_ROLE_TARGET;
2693 	}
2694 
2695 	/*
2696 	 * Enable the IOC
2697 	 */
2698 	if (mpt_enable_ioc(mpt, 1) != MPT_OK) {
2699 		mpt_prt(mpt, "unable to initialize IOC\n");
2700 		return (ENXIO);
2701 	}
2702 
2703 	/*
2704 	 * Read IOC configuration information.
2705 	 *
2706 	 * We need this to determine whether or not we have certain
2707 	 * settings for Integrated Mirroring (e.g.).
2708 	 */
2709 	mpt_read_config_info_ioc(mpt);
2710 
2711 	return (0);
2712 }
2713 
2714 static int
2715 mpt_enable_ioc(struct mpt_softc *mpt, int portenable)
2716 {
2717 	uint32_t pptr;
2718 	int val;
2719 
2720 	if (mpt_send_ioc_init(mpt, MPI_WHOINIT_HOST_DRIVER) != MPT_OK) {
2721 		mpt_prt(mpt, "mpt_send_ioc_init failed\n");
2722 		return (EIO);
2723 	}
2724 
2725 	mpt_lprt(mpt, MPT_PRT_DEBUG, "mpt_send_ioc_init ok\n");
2726 
2727 	if (mpt_wait_state(mpt, MPT_DB_STATE_RUNNING) != MPT_OK) {
2728 		mpt_prt(mpt, "IOC failed to go to run state\n");
2729 		return (ENXIO);
2730 	}
2731 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC now at RUNSTATE\n");
2732 
2733 	/*
2734 	 * Give it reply buffers
2735 	 *
2736 	 * Do *not* exceed global credits.
2737 	 */
2738 	for (val = 0, pptr = mpt->reply_phys;
2739 	    (pptr + MPT_REPLY_SIZE) < (mpt->reply_phys + PAGE_SIZE);
2740 	     pptr += MPT_REPLY_SIZE) {
2741 		mpt_free_reply(mpt, pptr);
2742 		if (++val == mpt->ioc_facts.GlobalCredits - 1)
2743 			break;
2744 	}
2745 
2746 
2747 	/*
2748 	 * Enable the port if asked. This is only done if we're resetting
2749 	 * the IOC after initial startup.
2750 	 */
2751 	if (portenable) {
2752 		/*
2753 		 * Enable asynchronous event reporting
2754 		 */
2755 		mpt_send_event_request(mpt, 1);
2756 
2757 		if (mpt_send_port_enable(mpt, 0) != MPT_OK) {
2758 			mpt_prt(mpt, "failed to enable port 0\n");
2759 			return (ENXIO);
2760 		}
2761 	}
2762 	return (MPT_OK);
2763 }
2764 
2765 /*
2766  * Endian Conversion Functions- only used on Big Endian machines
2767  */
2768 #if	_BYTE_ORDER == _BIG_ENDIAN
2769 void
2770 mpt2host_sge_simple_union(SGE_SIMPLE_UNION *sge)
2771 {
2772 
2773 	MPT_2_HOST32(sge, FlagsLength);
2774 	MPT_2_HOST32(sge, u.Address64.Low);
2775 	MPT_2_HOST32(sge, u.Address64.High);
2776 }
2777 
2778 void
2779 mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *rp)
2780 {
2781 
2782 	MPT_2_HOST16(rp, MsgVersion);
2783 	MPT_2_HOST16(rp, HeaderVersion);
2784 	MPT_2_HOST32(rp, MsgContext);
2785 	MPT_2_HOST16(rp, IOCExceptions);
2786 	MPT_2_HOST16(rp, IOCStatus);
2787 	MPT_2_HOST32(rp, IOCLogInfo);
2788 	MPT_2_HOST16(rp, ReplyQueueDepth);
2789 	MPT_2_HOST16(rp, RequestFrameSize);
2790 	MPT_2_HOST16(rp, Reserved_0101_FWVersion);
2791 	MPT_2_HOST16(rp, ProductID);
2792 	MPT_2_HOST32(rp, CurrentHostMfaHighAddr);
2793 	MPT_2_HOST16(rp, GlobalCredits);
2794 	MPT_2_HOST32(rp, CurrentSenseBufferHighAddr);
2795 	MPT_2_HOST16(rp, CurReplyFrameSize);
2796 	MPT_2_HOST32(rp, FWImageSize);
2797 	MPT_2_HOST32(rp, IOCCapabilities);
2798 	MPT_2_HOST32(rp, FWVersion.Word);
2799 	MPT_2_HOST16(rp, HighPriorityQueueDepth);
2800 	MPT_2_HOST16(rp, Reserved2);
2801 	mpt2host_sge_simple_union(&rp->HostPageBufferSGE);
2802 	MPT_2_HOST32(rp, ReplyFifoHostSignalingAddr);
2803 }
2804 
2805 void
2806 mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *pfp)
2807 {
2808 
2809 	MPT_2_HOST16(pfp, Reserved);
2810 	MPT_2_HOST16(pfp, Reserved1);
2811 	MPT_2_HOST32(pfp, MsgContext);
2812 	MPT_2_HOST16(pfp, Reserved2);
2813 	MPT_2_HOST16(pfp, IOCStatus);
2814 	MPT_2_HOST32(pfp, IOCLogInfo);
2815 	MPT_2_HOST16(pfp, MaxDevices);
2816 	MPT_2_HOST16(pfp, PortSCSIID);
2817 	MPT_2_HOST16(pfp, ProtocolFlags);
2818 	MPT_2_HOST16(pfp, MaxPostedCmdBuffers);
2819 	MPT_2_HOST16(pfp, MaxPersistentIDs);
2820 	MPT_2_HOST16(pfp, MaxLanBuckets);
2821 	MPT_2_HOST16(pfp, Reserved4);
2822 	MPT_2_HOST32(pfp, Reserved5);
2823 }
2824 
2825 void
2826 mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *ioc2)
2827 {
2828 	int i;
2829 
2830 	MPT_2_HOST32(ioc2, CapabilitiesFlags);
2831 	for (i = 0; i < MPI_IOC_PAGE_2_RAID_VOLUME_MAX; i++) {
2832 		MPT_2_HOST16(ioc2, RaidVolume[i].Reserved3);
2833 	}
2834 }
2835 
2836 void
2837 mpt2host_config_page_ioc3(CONFIG_PAGE_IOC_3 *ioc3)
2838 {
2839 
2840 	MPT_2_HOST16(ioc3, Reserved2);
2841 }
2842 
2843 void
2844 mpt2host_config_page_scsi_port_0(CONFIG_PAGE_SCSI_PORT_0 *sp0)
2845 {
2846 
2847 	MPT_2_HOST32(sp0, Capabilities);
2848 	MPT_2_HOST32(sp0, PhysicalInterface);
2849 }
2850 
2851 void
2852 mpt2host_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *sp1)
2853 {
2854 
2855 	MPT_2_HOST32(sp1, Configuration);
2856 	MPT_2_HOST32(sp1, OnBusTimerValue);
2857 	MPT_2_HOST16(sp1, IDConfig);
2858 }
2859 
2860 void
2861 host2mpt_config_page_scsi_port_1(CONFIG_PAGE_SCSI_PORT_1 *sp1)
2862 {
2863 
2864 	HOST_2_MPT32(sp1, Configuration);
2865 	HOST_2_MPT32(sp1, OnBusTimerValue);
2866 	HOST_2_MPT16(sp1, IDConfig);
2867 }
2868 
2869 void
2870 mpt2host_config_page_scsi_port_2(CONFIG_PAGE_SCSI_PORT_2 *sp2)
2871 {
2872 	int i;
2873 
2874 	MPT_2_HOST32(sp2, PortFlags);
2875 	MPT_2_HOST32(sp2, PortSettings);
2876 	for (i = 0; i < sizeof(sp2->DeviceSettings) /
2877 	    sizeof(*sp2->DeviceSettings); i++) {
2878 		MPT_2_HOST16(sp2, DeviceSettings[i].DeviceFlags);
2879 	}
2880 }
2881 
2882 void
2883 mpt2host_config_page_scsi_device_0(CONFIG_PAGE_SCSI_DEVICE_0 *sd0)
2884 {
2885 
2886 	MPT_2_HOST32(sd0, NegotiatedParameters);
2887 	MPT_2_HOST32(sd0, Information);
2888 }
2889 
2890 void
2891 mpt2host_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *sd1)
2892 {
2893 
2894 	MPT_2_HOST32(sd1, RequestedParameters);
2895 	MPT_2_HOST32(sd1, Reserved);
2896 	MPT_2_HOST32(sd1, Configuration);
2897 }
2898 
2899 void
2900 host2mpt_config_page_scsi_device_1(CONFIG_PAGE_SCSI_DEVICE_1 *sd1)
2901 {
2902 
2903 	HOST_2_MPT32(sd1, RequestedParameters);
2904 	HOST_2_MPT32(sd1, Reserved);
2905 	HOST_2_MPT32(sd1, Configuration);
2906 }
2907 
2908 void
2909 mpt2host_config_page_fc_port_0(CONFIG_PAGE_FC_PORT_0 *fp0)
2910 {
2911 
2912 	MPT_2_HOST32(fp0, Flags);
2913 	MPT_2_HOST32(fp0, PortIdentifier);
2914 	MPT_2_HOST32(fp0, WWNN.Low);
2915 	MPT_2_HOST32(fp0, WWNN.High);
2916 	MPT_2_HOST32(fp0, WWPN.Low);
2917 	MPT_2_HOST32(fp0, WWPN.High);
2918 	MPT_2_HOST32(fp0, SupportedServiceClass);
2919 	MPT_2_HOST32(fp0, SupportedSpeeds);
2920 	MPT_2_HOST32(fp0, CurrentSpeed);
2921 	MPT_2_HOST32(fp0, MaxFrameSize);
2922 	MPT_2_HOST32(fp0, FabricWWNN.Low);
2923 	MPT_2_HOST32(fp0, FabricWWNN.High);
2924 	MPT_2_HOST32(fp0, FabricWWPN.Low);
2925 	MPT_2_HOST32(fp0, FabricWWPN.High);
2926 	MPT_2_HOST32(fp0, DiscoveredPortsCount);
2927 	MPT_2_HOST32(fp0, MaxInitiators);
2928 }
2929 
2930 void
2931 mpt2host_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *fp1)
2932 {
2933 
2934 	MPT_2_HOST32(fp1, Flags);
2935 	MPT_2_HOST32(fp1, NoSEEPROMWWNN.Low);
2936 	MPT_2_HOST32(fp1, NoSEEPROMWWNN.High);
2937 	MPT_2_HOST32(fp1, NoSEEPROMWWPN.Low);
2938 	MPT_2_HOST32(fp1, NoSEEPROMWWPN.High);
2939 }
2940 
2941 void
2942 host2mpt_config_page_fc_port_1(CONFIG_PAGE_FC_PORT_1 *fp1)
2943 {
2944 
2945 	HOST_2_MPT32(fp1, Flags);
2946 	HOST_2_MPT32(fp1, NoSEEPROMWWNN.Low);
2947 	HOST_2_MPT32(fp1, NoSEEPROMWWNN.High);
2948 	HOST_2_MPT32(fp1, NoSEEPROMWWPN.Low);
2949 	HOST_2_MPT32(fp1, NoSEEPROMWWPN.High);
2950 }
2951 
2952 void
2953 mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *volp)
2954 {
2955 	int i;
2956 
2957 	MPT_2_HOST16(volp, VolumeStatus.Reserved);
2958 	MPT_2_HOST16(volp, VolumeSettings.Settings);
2959 	MPT_2_HOST32(volp, MaxLBA);
2960 	MPT_2_HOST32(volp, MaxLBAHigh);
2961 	MPT_2_HOST32(volp, StripeSize);
2962 	MPT_2_HOST32(volp, Reserved2);
2963 	MPT_2_HOST32(volp, Reserved3);
2964 	for (i = 0; i < MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX; i++) {
2965 		MPT_2_HOST16(volp, PhysDisk[i].Reserved);
2966 	}
2967 }
2968 
2969 void
2970 mpt2host_config_page_raid_phys_disk_0(CONFIG_PAGE_RAID_PHYS_DISK_0 *rpd0)
2971 {
2972 
2973 	MPT_2_HOST32(rpd0, Reserved1);
2974 	MPT_2_HOST16(rpd0, PhysDiskStatus.Reserved);
2975 	MPT_2_HOST32(rpd0, MaxLBA);
2976 	MPT_2_HOST16(rpd0, ErrorData.Reserved);
2977 	MPT_2_HOST16(rpd0, ErrorData.ErrorCount);
2978 	MPT_2_HOST16(rpd0, ErrorData.SmartCount);
2979 }
2980 
2981 void
2982 mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *vi)
2983 {
2984 
2985 	MPT_2_HOST16(vi, TotalBlocks.High);
2986 	MPT_2_HOST16(vi, TotalBlocks.Low);
2987 	MPT_2_HOST16(vi, BlocksRemaining.High);
2988 	MPT_2_HOST16(vi, BlocksRemaining.Low);
2989 }
2990 #endif
2991