xref: /freebsd/sys/dev/mpt/mpt.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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 		mpt_callout_init(&req->callout);
1242 	} else if (sleep_ok != 0) {
1243 		mpt->getreqwaiter = 1;
1244 		mpt_sleep(mpt, &mpt->request_free_list, PUSER, "mptgreq", 0);
1245 		goto retry;
1246 	}
1247 	return (req);
1248 }
1249 
1250 /* Pass the command to the IOC */
1251 void
1252 mpt_send_cmd(struct mpt_softc *mpt, request_t *req)
1253 {
1254 	if (mpt->verbose > MPT_PRT_DEBUG2) {
1255 		mpt_dump_request(mpt, req);
1256 	}
1257 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1258 	    BUS_DMASYNC_PREWRITE);
1259 	req->state |= REQ_STATE_QUEUED;
1260 	KASSERT(mpt_req_on_free_list(mpt, req) == 0,
1261 	    ("req %p:%u func %x on freelist list in mpt_send_cmd",
1262 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1263 	KASSERT(mpt_req_on_pending_list(mpt, req) == 0,
1264 	    ("req %p:%u func %x already on pending list in mpt_send_cmd",
1265 	    req, req->serno, ((MSG_REQUEST_HEADER *)req->req_vbuf)->Function));
1266 	TAILQ_INSERT_HEAD(&mpt->request_pending_list, req, links);
1267 	mpt_write(mpt, MPT_OFFSET_REQUEST_Q, (uint32_t) req->req_pbuf);
1268 }
1269 
1270 /*
1271  * Wait for a request to complete.
1272  *
1273  * Inputs:
1274  *	mpt		softc of controller executing request
1275  *	req		request to wait for
1276  *	sleep_ok	nonzero implies may sleep in this context
1277  *	time_ms		timeout in ms.  0 implies no timeout.
1278  *
1279  * Return Values:
1280  *	0		Request completed
1281  *	non-0		Timeout fired before request completion.
1282  */
1283 int
1284 mpt_wait_req(struct mpt_softc *mpt, request_t *req,
1285 	     mpt_req_state_t state, mpt_req_state_t mask,
1286 	     int sleep_ok, int time_ms)
1287 {
1288 	int   error;
1289 	int   timeout;
1290 	u_int saved_cnt;
1291 
1292 	/*
1293 	 * timeout is in ms.  0 indicates infinite wait.
1294 	 * Convert to ticks or 500us units depending on
1295 	 * our sleep mode.
1296 	 */
1297 	if (sleep_ok != 0) {
1298 		timeout = (time_ms * hz) / 1000;
1299 	} else {
1300 		timeout = time_ms * 2;
1301 	}
1302 	req->state |= REQ_STATE_NEED_WAKEUP;
1303 	mask &= ~REQ_STATE_NEED_WAKEUP;
1304 	saved_cnt = mpt->reset_cnt;
1305 	while ((req->state & mask) != state && mpt->reset_cnt == saved_cnt) {
1306 		if (sleep_ok != 0) {
1307 			error = mpt_sleep(mpt, req, PUSER, "mptreq", timeout);
1308 			if (error == EWOULDBLOCK) {
1309 				timeout = 0;
1310 				break;
1311 			}
1312 		} else {
1313 			if (time_ms != 0 && --timeout == 0) {
1314 				break;
1315 			}
1316 			DELAY(500);
1317 			mpt_intr(mpt);
1318 		}
1319 	}
1320 	req->state &= ~REQ_STATE_NEED_WAKEUP;
1321 	if (mpt->reset_cnt != saved_cnt) {
1322 		return (EIO);
1323 	}
1324 	if (time_ms && timeout <= 0) {
1325 		MSG_REQUEST_HEADER *msg_hdr = req->req_vbuf;
1326 		req->state |= REQ_STATE_TIMEDOUT;
1327 		mpt_prt(mpt, "mpt_wait_req(%x) timed out\n", msg_hdr->Function);
1328 		return (ETIMEDOUT);
1329 	}
1330 	return (0);
1331 }
1332 
1333 /*
1334  * Send a command to the IOC via the handshake register.
1335  *
1336  * Only done at initialization time and for certain unusual
1337  * commands such as device/bus reset as specified by LSI.
1338  */
1339 int
1340 mpt_send_handshake_cmd(struct mpt_softc *mpt, size_t len, void *cmd)
1341 {
1342 	int i;
1343 	uint32_t data, *data32;
1344 
1345 	/* Check condition of the IOC */
1346 	data = mpt_rd_db(mpt);
1347 	if ((MPT_STATE(data) != MPT_DB_STATE_READY
1348 	  && MPT_STATE(data) != MPT_DB_STATE_RUNNING
1349 	  && MPT_STATE(data) != MPT_DB_STATE_FAULT)
1350 	 || MPT_DB_IS_IN_USE(data)) {
1351 		mpt_prt(mpt, "handshake aborted - invalid doorbell state\n");
1352 		mpt_print_db(data);
1353 		return (EBUSY);
1354 	}
1355 
1356 	/* We move things in 32 bit chunks */
1357 	len = (len + 3) >> 2;
1358 	data32 = cmd;
1359 
1360 	/* Clear any left over pending doorbell interrupts */
1361 	if (MPT_DB_INTR(mpt_rd_intr(mpt)))
1362 		mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1363 
1364 	/*
1365 	 * Tell the handshake reg. we are going to send a command
1366          * and how long it is going to be.
1367 	 */
1368 	data = (MPI_FUNCTION_HANDSHAKE << MPI_DOORBELL_FUNCTION_SHIFT) |
1369 	    (len << MPI_DOORBELL_ADD_DWORDS_SHIFT);
1370 	mpt_write(mpt, MPT_OFFSET_DOORBELL, data);
1371 
1372 	/* Wait for the chip to notice */
1373 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1374 		mpt_prt(mpt, "mpt_send_handshake_cmd: db ignored\n");
1375 		return (ETIMEDOUT);
1376 	}
1377 
1378 	/* Clear the interrupt */
1379 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1380 
1381 	if (mpt_wait_db_ack(mpt) != MPT_OK) {
1382 		mpt_prt(mpt, "mpt_send_handshake_cmd: db ack timed out\n");
1383 		return (ETIMEDOUT);
1384 	}
1385 
1386 	/* Send the command */
1387 	for (i = 0; i < len; i++) {
1388 		mpt_write(mpt, MPT_OFFSET_DOORBELL, htole32(*data32++));
1389 		if (mpt_wait_db_ack(mpt) != MPT_OK) {
1390 			mpt_prt(mpt,
1391 			    "mpt_send_handshake_cmd: timeout @ index %d\n", i);
1392 			return (ETIMEDOUT);
1393 		}
1394 	}
1395 	return MPT_OK;
1396 }
1397 
1398 /* Get the response from the handshake register */
1399 int
1400 mpt_recv_handshake_reply(struct mpt_softc *mpt, size_t reply_len, void *reply)
1401 {
1402 	int left, reply_left;
1403 	u_int16_t *data16;
1404 	uint32_t data;
1405 	MSG_DEFAULT_REPLY *hdr;
1406 
1407 	/* We move things out in 16 bit chunks */
1408 	reply_len >>= 1;
1409 	data16 = (u_int16_t *)reply;
1410 
1411 	hdr = (MSG_DEFAULT_REPLY *)reply;
1412 
1413 	/* Get first word */
1414 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1415 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout1\n");
1416 		return ETIMEDOUT;
1417 	}
1418 	data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1419 	*data16++ = le16toh(data & MPT_DB_DATA_MASK);
1420 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1421 
1422 	/* Get Second Word */
1423 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1424 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout2\n");
1425 		return ETIMEDOUT;
1426 	}
1427 	data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1428 	*data16++ = le16toh(data & MPT_DB_DATA_MASK);
1429 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1430 
1431 	/*
1432 	 * With the second word, we can now look at the length.
1433 	 * Warn about a reply that's too short (except for IOC FACTS REPLY)
1434 	 */
1435 	if ((reply_len >> 1) != hdr->MsgLength &&
1436 	    (hdr->Function != MPI_FUNCTION_IOC_FACTS)){
1437 #if __FreeBSD_version >= 500000
1438 		mpt_prt(mpt, "reply length does not match message length: "
1439 			"got %x; expected %zx for function %x\n",
1440 			hdr->MsgLength << 2, reply_len << 1, hdr->Function);
1441 #else
1442 		mpt_prt(mpt, "reply length does not match message length: "
1443 			"got %x; expected %x for function %x\n",
1444 			hdr->MsgLength << 2, reply_len << 1, hdr->Function);
1445 #endif
1446 	}
1447 
1448 	/* Get rest of the reply; but don't overflow the provided buffer */
1449 	left = (hdr->MsgLength << 1) - 2;
1450 	reply_left =  reply_len - 2;
1451 	while (left--) {
1452 		u_int16_t datum;
1453 
1454 		if (mpt_wait_db_int(mpt) != MPT_OK) {
1455 			mpt_prt(mpt, "mpt_recv_handshake_cmd timeout3\n");
1456 			return ETIMEDOUT;
1457 		}
1458 		data = mpt_read(mpt, MPT_OFFSET_DOORBELL);
1459 		datum = le16toh(data & MPT_DB_DATA_MASK);
1460 
1461 		if (reply_left-- > 0)
1462 			*data16++ = datum;
1463 
1464 		mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1465 	}
1466 
1467 	/* One more wait & clear at the end */
1468 	if (mpt_wait_db_int(mpt) != MPT_OK) {
1469 		mpt_prt(mpt, "mpt_recv_handshake_cmd timeout4\n");
1470 		return ETIMEDOUT;
1471 	}
1472 	mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
1473 
1474 	if ((hdr->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1475 		if (mpt->verbose >= MPT_PRT_TRACE)
1476 			mpt_print_reply(hdr);
1477 		return (MPT_FAIL | hdr->IOCStatus);
1478 	}
1479 
1480 	return (0);
1481 }
1482 
1483 static int
1484 mpt_get_iocfacts(struct mpt_softc *mpt, MSG_IOC_FACTS_REPLY *freplp)
1485 {
1486 	MSG_IOC_FACTS f_req;
1487 	int error;
1488 
1489 	memset(&f_req, 0, sizeof f_req);
1490 	f_req.Function = MPI_FUNCTION_IOC_FACTS;
1491 	f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1492 	error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
1493 	if (error) {
1494 		return(error);
1495 	}
1496 	error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
1497 	return (error);
1498 }
1499 
1500 static int
1501 mpt_get_portfacts(struct mpt_softc *mpt, U8 port, MSG_PORT_FACTS_REPLY *freplp)
1502 {
1503 	MSG_PORT_FACTS f_req;
1504 	int error;
1505 
1506 	memset(&f_req, 0, sizeof f_req);
1507 	f_req.Function = MPI_FUNCTION_PORT_FACTS;
1508 	f_req.PortNumber = port;
1509 	f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1510 	error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
1511 	if (error) {
1512 		return(error);
1513 	}
1514 	error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
1515 	return (error);
1516 }
1517 
1518 /*
1519  * Send the initialization request. This is where we specify how many
1520  * SCSI busses and how many devices per bus we wish to emulate.
1521  * This is also the command that specifies the max size of the reply
1522  * frames from the IOC that we will be allocating.
1523  */
1524 static int
1525 mpt_send_ioc_init(struct mpt_softc *mpt, uint32_t who)
1526 {
1527 	int error = 0;
1528 	MSG_IOC_INIT init;
1529 	MSG_IOC_INIT_REPLY reply;
1530 
1531 	memset(&init, 0, sizeof init);
1532 	init.WhoInit = who;
1533 	init.Function = MPI_FUNCTION_IOC_INIT;
1534 	init.MaxDevices = 0;	/* at least 256 devices per bus */
1535 	init.MaxBuses = 16;	/* at least 16 busses */
1536 
1537 	init.MsgVersion = htole16(MPI_VERSION);
1538 	init.HeaderVersion = htole16(MPI_HEADER_VERSION);
1539 	init.ReplyFrameSize = htole16(MPT_REPLY_SIZE);
1540 	init.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
1541 
1542 	if ((error = mpt_send_handshake_cmd(mpt, sizeof init, &init)) != 0) {
1543 		return(error);
1544 	}
1545 
1546 	error = mpt_recv_handshake_reply(mpt, sizeof reply, &reply);
1547 	return (error);
1548 }
1549 
1550 
1551 /*
1552  * Utiltity routine to read configuration headers and pages
1553  */
1554 int
1555 mpt_issue_cfg_req(struct mpt_softc *mpt, request_t *req, cfgparms_t *params,
1556 		  bus_addr_t addr, bus_size_t len, int sleep_ok, int timeout_ms)
1557 {
1558 	MSG_CONFIG *cfgp;
1559 	SGE_SIMPLE32 *se;
1560 
1561 	cfgp = req->req_vbuf;
1562 	memset(cfgp, 0, sizeof *cfgp);
1563 	cfgp->Action = params->Action;
1564 	cfgp->Function = MPI_FUNCTION_CONFIG;
1565 	cfgp->Header.PageVersion = params->PageVersion;
1566 	cfgp->Header.PageNumber = params->PageNumber;
1567 	cfgp->PageAddress = htole32(params->PageAddress);
1568 	if ((params->PageType & MPI_CONFIG_PAGETYPE_MASK) ==
1569 	    MPI_CONFIG_PAGETYPE_EXTENDED) {
1570 		cfgp->Header.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1571 		cfgp->Header.PageLength = 0;
1572 		cfgp->ExtPageLength = htole16(params->ExtPageLength);
1573 		cfgp->ExtPageType = params->ExtPageType;
1574 	} else {
1575 		cfgp->Header.PageType = params->PageType;
1576 		cfgp->Header.PageLength = params->PageLength;
1577 	}
1578 	se = (SGE_SIMPLE32 *)&cfgp->PageBufferSGE;
1579 	se->Address = htole32(addr);
1580 	MPI_pSGE_SET_LENGTH(se, len);
1581 	MPI_pSGE_SET_FLAGS(se, (MPI_SGE_FLAGS_SIMPLE_ELEMENT |
1582 	    MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1583 	    MPI_SGE_FLAGS_END_OF_LIST |
1584 	    ((params->Action == MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT
1585 	  || params->Action == MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM)
1586 	   ? MPI_SGE_FLAGS_HOST_TO_IOC : MPI_SGE_FLAGS_IOC_TO_HOST)));
1587 	se->FlagsLength = htole32(se->FlagsLength);
1588 	cfgp->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_CONFIG);
1589 
1590 	mpt_check_doorbell(mpt);
1591 	mpt_send_cmd(mpt, req);
1592 	return (mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE,
1593 			     sleep_ok, timeout_ms));
1594 }
1595 
1596 int
1597 mpt_read_extcfg_header(struct mpt_softc *mpt, int PageVersion, int PageNumber,
1598 		       uint32_t PageAddress, int ExtPageType,
1599 		       CONFIG_EXTENDED_PAGE_HEADER *rslt,
1600 		       int sleep_ok, int timeout_ms)
1601 {
1602 	request_t  *req;
1603 	cfgparms_t params;
1604 	MSG_CONFIG_REPLY *cfgp;
1605 	int	    error;
1606 
1607 	req = mpt_get_request(mpt, sleep_ok);
1608 	if (req == NULL) {
1609 		mpt_prt(mpt, "mpt_extread_cfg_header: Get request failed!\n");
1610 		return (ENOMEM);
1611 	}
1612 
1613 	params.Action = MPI_CONFIG_ACTION_PAGE_HEADER;
1614 	params.PageVersion = PageVersion;
1615 	params.PageLength = 0;
1616 	params.PageNumber = PageNumber;
1617 	params.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1618 	params.PageAddress = PageAddress;
1619 	params.ExtPageType = ExtPageType;
1620 	params.ExtPageLength = 0;
1621 	error = mpt_issue_cfg_req(mpt, req, &params, /*addr*/0, /*len*/0,
1622 				  sleep_ok, timeout_ms);
1623 	if (error != 0) {
1624 		/*
1625 		 * Leave the request. Without resetting the chip, it's
1626 		 * still owned by it and we'll just get into trouble
1627 		 * freeing it now. Mark it as abandoned so that if it
1628 		 * shows up later it can be freed.
1629 		 */
1630 		mpt_prt(mpt, "read_extcfg_header timed out\n");
1631 		return (ETIMEDOUT);
1632 	}
1633 
1634         switch (req->IOCStatus & MPI_IOCSTATUS_MASK) {
1635 	case MPI_IOCSTATUS_SUCCESS:
1636 		cfgp = req->req_vbuf;
1637 		rslt->PageVersion = cfgp->Header.PageVersion;
1638 		rslt->PageNumber = cfgp->Header.PageNumber;
1639 		rslt->PageType = cfgp->Header.PageType;
1640 		rslt->ExtPageLength = cfgp->ExtPageLength;
1641 		rslt->ExtPageType = cfgp->ExtPageType;
1642 		error = 0;
1643 		break;
1644 	case MPI_IOCSTATUS_CONFIG_INVALID_PAGE:
1645 		mpt_lprt(mpt, MPT_PRT_DEBUG,
1646 		    "Invalid Page Type %d Number %d Addr 0x%0x\n",
1647 		    MPI_CONFIG_PAGETYPE_EXTENDED, PageNumber, PageAddress);
1648 		error = EINVAL;
1649 		break;
1650 	default:
1651 		mpt_prt(mpt, "mpt_read_extcfg_header: Config Info Status %x\n",
1652 			req->IOCStatus);
1653 		error = EIO;
1654 		break;
1655 	}
1656 	mpt_free_request(mpt, req);
1657 	return (error);
1658 }
1659 
1660 int
1661 mpt_read_extcfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1662 		     CONFIG_EXTENDED_PAGE_HEADER *hdr, void *buf, size_t len,
1663 		     int sleep_ok, int timeout_ms)
1664 {
1665 	request_t    *req;
1666 	cfgparms_t    params;
1667 	int	      error;
1668 
1669 	req = mpt_get_request(mpt, sleep_ok);
1670 	if (req == NULL) {
1671 		mpt_prt(mpt, "mpt_read_cfg_page: Get request failed!\n");
1672 		return (-1);
1673 	}
1674 
1675 	params.Action = Action;
1676 	params.PageVersion = hdr->PageVersion;
1677 	params.PageLength = 0;
1678 	params.PageNumber = hdr->PageNumber;
1679 	params.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1680 	params.PageAddress = PageAddress;
1681 	params.ExtPageType = hdr->ExtPageType;
1682 	params.ExtPageLength = hdr->ExtPageLength;
1683 	error = mpt_issue_cfg_req(mpt, req, &params,
1684 				  req->req_pbuf + MPT_RQSL(mpt),
1685 				  len, sleep_ok, timeout_ms);
1686 	if (error != 0) {
1687 		mpt_prt(mpt, "read_extcfg_page(%d) timed out\n", Action);
1688 		return (-1);
1689 	}
1690 
1691 	if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1692 		mpt_prt(mpt, "mpt_read_extcfg_page: Config Info Status %x\n",
1693 			req->IOCStatus);
1694 		mpt_free_request(mpt, req);
1695 		return (-1);
1696 	}
1697 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1698 	    BUS_DMASYNC_POSTREAD);
1699 	memcpy(buf, ((uint8_t *)req->req_vbuf)+MPT_RQSL(mpt), len);
1700 	mpt_free_request(mpt, req);
1701 	return (0);
1702 }
1703 
1704 int
1705 mpt_read_cfg_header(struct mpt_softc *mpt, int PageType, int PageNumber,
1706 		    uint32_t PageAddress, CONFIG_PAGE_HEADER *rslt,
1707 		    int sleep_ok, int timeout_ms)
1708 {
1709 	request_t  *req;
1710 	cfgparms_t params;
1711 	MSG_CONFIG *cfgp;
1712 	int	    error;
1713 
1714 	req = mpt_get_request(mpt, sleep_ok);
1715 	if (req == NULL) {
1716 		mpt_prt(mpt, "mpt_read_cfg_header: Get request failed!\n");
1717 		return (ENOMEM);
1718 	}
1719 
1720 	params.Action = MPI_CONFIG_ACTION_PAGE_HEADER;
1721 	params.PageVersion = 0;
1722 	params.PageLength = 0;
1723 	params.PageNumber = PageNumber;
1724 	params.PageType = PageType;
1725 	params.PageAddress = PageAddress;
1726 	error = mpt_issue_cfg_req(mpt, req, &params, /*addr*/0, /*len*/0,
1727 				  sleep_ok, timeout_ms);
1728 	if (error != 0) {
1729 		/*
1730 		 * Leave the request. Without resetting the chip, it's
1731 		 * still owned by it and we'll just get into trouble
1732 		 * freeing it now. Mark it as abandoned so that if it
1733 		 * shows up later it can be freed.
1734 		 */
1735 		mpt_prt(mpt, "read_cfg_header timed out\n");
1736 		return (ETIMEDOUT);
1737 	}
1738 
1739         switch (req->IOCStatus & MPI_IOCSTATUS_MASK) {
1740 	case MPI_IOCSTATUS_SUCCESS:
1741 		cfgp = req->req_vbuf;
1742 		bcopy(&cfgp->Header, rslt, sizeof(*rslt));
1743 		error = 0;
1744 		break;
1745 	case MPI_IOCSTATUS_CONFIG_INVALID_PAGE:
1746 		mpt_lprt(mpt, MPT_PRT_DEBUG,
1747 		    "Invalid Page Type %d Number %d Addr 0x%0x\n",
1748 		    PageType, PageNumber, PageAddress);
1749 		error = EINVAL;
1750 		break;
1751 	default:
1752 		mpt_prt(mpt, "mpt_read_cfg_header: Config Info Status %x\n",
1753 			req->IOCStatus);
1754 		error = EIO;
1755 		break;
1756 	}
1757 	mpt_free_request(mpt, req);
1758 	return (error);
1759 }
1760 
1761 int
1762 mpt_read_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1763 		  CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1764 		  int timeout_ms)
1765 {
1766 	request_t    *req;
1767 	cfgparms_t    params;
1768 	int	      error;
1769 
1770 	req = mpt_get_request(mpt, sleep_ok);
1771 	if (req == NULL) {
1772 		mpt_prt(mpt, "mpt_read_cfg_page: Get request failed!\n");
1773 		return (-1);
1774 	}
1775 
1776 	params.Action = Action;
1777 	params.PageVersion = hdr->PageVersion;
1778 	params.PageLength = hdr->PageLength;
1779 	params.PageNumber = hdr->PageNumber;
1780 	params.PageType = hdr->PageType & MPI_CONFIG_PAGETYPE_MASK;
1781 	params.PageAddress = PageAddress;
1782 	error = mpt_issue_cfg_req(mpt, req, &params,
1783 				  req->req_pbuf + MPT_RQSL(mpt),
1784 				  len, sleep_ok, timeout_ms);
1785 	if (error != 0) {
1786 		mpt_prt(mpt, "read_cfg_page(%d) timed out\n", Action);
1787 		return (-1);
1788 	}
1789 
1790 	if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1791 		mpt_prt(mpt, "mpt_read_cfg_page: Config Info Status %x\n",
1792 			req->IOCStatus);
1793 		mpt_free_request(mpt, req);
1794 		return (-1);
1795 	}
1796 	bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
1797 	    BUS_DMASYNC_POSTREAD);
1798 	memcpy(hdr, ((uint8_t *)req->req_vbuf)+MPT_RQSL(mpt), len);
1799 	mpt_free_request(mpt, req);
1800 	return (0);
1801 }
1802 
1803 int
1804 mpt_write_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
1805 		   CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
1806 		   int timeout_ms)
1807 {
1808 	request_t    *req;
1809 	cfgparms_t    params;
1810 	u_int	      hdr_attr;
1811 	int	      error;
1812 
1813 	hdr_attr = hdr->PageType & MPI_CONFIG_PAGEATTR_MASK;
1814 	if (hdr_attr != MPI_CONFIG_PAGEATTR_CHANGEABLE &&
1815 	    hdr_attr != MPI_CONFIG_PAGEATTR_PERSISTENT) {
1816 		mpt_prt(mpt, "page type 0x%x not changeable\n",
1817 			hdr->PageType & MPI_CONFIG_PAGETYPE_MASK);
1818 		return (-1);
1819 	}
1820 
1821 #if	0
1822 	/*
1823 	 * We shouldn't mask off other bits here.
1824 	 */
1825 	hdr->PageType &= MPI_CONFIG_PAGETYPE_MASK;
1826 #endif
1827 
1828 	req = mpt_get_request(mpt, sleep_ok);
1829 	if (req == NULL)
1830 		return (-1);
1831 
1832 	memcpy(((caddr_t)req->req_vbuf) + MPT_RQSL(mpt), hdr, len);
1833 
1834 	/*
1835 	 * There isn't any point in restoring stripped out attributes
1836 	 * if you then mask them going down to issue the request.
1837 	 */
1838 
1839 	params.Action = Action;
1840 	params.PageVersion = hdr->PageVersion;
1841 	params.PageLength = hdr->PageLength;
1842 	params.PageNumber = hdr->PageNumber;
1843 	params.PageAddress = PageAddress;
1844 #if	0
1845 	/* Restore stripped out attributes */
1846 	hdr->PageType |= hdr_attr;
1847 	params.PageType = hdr->PageType & MPI_CONFIG_PAGETYPE_MASK;
1848 #else
1849 	params.PageType = hdr->PageType;
1850 #endif
1851 	error = mpt_issue_cfg_req(mpt, req, &params,
1852 				  req->req_pbuf + MPT_RQSL(mpt),
1853 				  len, sleep_ok, timeout_ms);
1854 	if (error != 0) {
1855 		mpt_prt(mpt, "mpt_write_cfg_page timed out\n");
1856 		return (-1);
1857 	}
1858 
1859         if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
1860 		mpt_prt(mpt, "mpt_write_cfg_page: Config Info Status %x\n",
1861 			req->IOCStatus);
1862 		mpt_free_request(mpt, req);
1863 		return (-1);
1864 	}
1865 	mpt_free_request(mpt, req);
1866 	return (0);
1867 }
1868 
1869 /*
1870  * Read IOC configuration information
1871  */
1872 static int
1873 mpt_read_config_info_ioc(struct mpt_softc *mpt)
1874 {
1875 	CONFIG_PAGE_HEADER hdr;
1876 	struct mpt_raid_volume *mpt_raid;
1877 	int rv;
1878 	int i;
1879 	size_t len;
1880 
1881 	rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
1882 		2, 0, &hdr, FALSE, 5000);
1883 	/*
1884 	 * If it's an invalid page, so what? Not a supported function....
1885 	 */
1886 	if (rv == EINVAL) {
1887 		return (0);
1888 	}
1889 	if (rv) {
1890 		return (rv);
1891 	}
1892 
1893 	mpt_lprt(mpt, MPT_PRT_DEBUG,
1894 	    "IOC Page 2 Header: Version %x len %x PageNumber %x PageType %x\n",
1895 	    hdr.PageVersion, hdr.PageLength << 2,
1896 	    hdr.PageNumber, hdr.PageType);
1897 
1898 	len = hdr.PageLength * sizeof(uint32_t);
1899 	mpt->ioc_page2 = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1900 	if (mpt->ioc_page2 == NULL) {
1901 		mpt_prt(mpt, "unable to allocate memory for IOC page 2\n");
1902 		mpt_raid_free_mem(mpt);
1903 		return (ENOMEM);
1904 	}
1905 	memcpy(&mpt->ioc_page2->Header, &hdr, sizeof(hdr));
1906 	rv = mpt_read_cur_cfg_page(mpt, 0,
1907 	    &mpt->ioc_page2->Header, len, FALSE, 5000);
1908 	if (rv) {
1909 		mpt_prt(mpt, "failed to read IOC Page 2\n");
1910 		mpt_raid_free_mem(mpt);
1911 		return (EIO);
1912 	}
1913 	mpt2host_config_page_ioc2(mpt->ioc_page2);
1914 
1915 	if (mpt->ioc_page2->CapabilitiesFlags != 0) {
1916 		uint32_t mask;
1917 
1918 		mpt_prt(mpt, "Capabilities: (");
1919 		for (mask = 1; mask != 0; mask <<= 1) {
1920 			if ((mpt->ioc_page2->CapabilitiesFlags & mask) == 0) {
1921 				continue;
1922 			}
1923 			switch (mask) {
1924 			case MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT:
1925 				mpt_prtc(mpt, " RAID-0");
1926 				break;
1927 			case MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT:
1928 				mpt_prtc(mpt, " RAID-1E");
1929 				break;
1930 			case MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT:
1931 				mpt_prtc(mpt, " RAID-1");
1932 				break;
1933 			case MPI_IOCPAGE2_CAP_FLAGS_SES_SUPPORT:
1934 				mpt_prtc(mpt, " SES");
1935 				break;
1936 			case MPI_IOCPAGE2_CAP_FLAGS_SAFTE_SUPPORT:
1937 				mpt_prtc(mpt, " SAFTE");
1938 				break;
1939 			case MPI_IOCPAGE2_CAP_FLAGS_CROSS_CHANNEL_SUPPORT:
1940 				mpt_prtc(mpt, " Multi-Channel-Arrays");
1941 			default:
1942 				break;
1943 			}
1944 		}
1945 		mpt_prtc(mpt, " )\n");
1946 		if ((mpt->ioc_page2->CapabilitiesFlags
1947 		   & (MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT
1948 		    | MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT
1949 		    | MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT)) != 0) {
1950 			mpt_prt(mpt, "%d Active Volume%s(%d Max)\n",
1951 				mpt->ioc_page2->NumActiveVolumes,
1952 				mpt->ioc_page2->NumActiveVolumes != 1
1953 			      ? "s " : " ",
1954 				mpt->ioc_page2->MaxVolumes);
1955 			mpt_prt(mpt, "%d Hidden Drive Member%s(%d Max)\n",
1956 				mpt->ioc_page2->NumActivePhysDisks,
1957 				mpt->ioc_page2->NumActivePhysDisks != 1
1958 			      ? "s " : " ",
1959 				mpt->ioc_page2->MaxPhysDisks);
1960 		}
1961 	}
1962 
1963 	len = mpt->ioc_page2->MaxVolumes * sizeof(struct mpt_raid_volume);
1964 	mpt->raid_volumes = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1965 	if (mpt->raid_volumes == NULL) {
1966 		mpt_prt(mpt, "Could not allocate RAID volume data\n");
1967 		mpt_raid_free_mem(mpt);
1968 		return (ENOMEM);
1969 	}
1970 
1971 	/*
1972 	 * Copy critical data out of ioc_page2 so that we can
1973 	 * safely refresh the page without windows of unreliable
1974 	 * data.
1975 	 */
1976 	mpt->raid_max_volumes =  mpt->ioc_page2->MaxVolumes;
1977 
1978 	len = sizeof(*mpt->raid_volumes->config_page) +
1979 	    (sizeof (RAID_VOL0_PHYS_DISK) * (mpt->ioc_page2->MaxPhysDisks - 1));
1980 	for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
1981 		mpt_raid = &mpt->raid_volumes[i];
1982 		mpt_raid->config_page =
1983 		    malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1984 		if (mpt_raid->config_page == NULL) {
1985 			mpt_prt(mpt, "Could not allocate RAID page data\n");
1986 			mpt_raid_free_mem(mpt);
1987 			return (ENOMEM);
1988 		}
1989 	}
1990 	mpt->raid_page0_len = len;
1991 
1992 	len = mpt->ioc_page2->MaxPhysDisks * sizeof(struct mpt_raid_disk);
1993 	mpt->raid_disks = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
1994 	if (mpt->raid_disks == NULL) {
1995 		mpt_prt(mpt, "Could not allocate RAID disk data\n");
1996 		mpt_raid_free_mem(mpt);
1997 		return (ENOMEM);
1998 	}
1999 	mpt->raid_max_disks =  mpt->ioc_page2->MaxPhysDisks;
2000 
2001 	/*
2002 	 * Load page 3.
2003 	 */
2004 	rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
2005 	    3, 0, &hdr, FALSE, 5000);
2006 	if (rv) {
2007 		mpt_raid_free_mem(mpt);
2008 		return (EIO);
2009 	}
2010 
2011 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC Page 3 Header: %x %x %x %x\n",
2012 	    hdr.PageVersion, hdr.PageLength, hdr.PageNumber, hdr.PageType);
2013 
2014 	len = hdr.PageLength * sizeof(uint32_t);
2015 	mpt->ioc_page3 = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
2016 	if (mpt->ioc_page3 == NULL) {
2017 		mpt_prt(mpt, "unable to allocate memory for IOC page 3\n");
2018 		mpt_raid_free_mem(mpt);
2019 		return (ENOMEM);
2020 	}
2021 	memcpy(&mpt->ioc_page3->Header, &hdr, sizeof(hdr));
2022 	rv = mpt_read_cur_cfg_page(mpt, 0,
2023 	    &mpt->ioc_page3->Header, len, FALSE, 5000);
2024 	if (rv) {
2025 		mpt_raid_free_mem(mpt);
2026 		return (EIO);
2027 	}
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 	TAILQ_INSERT_TAIL(&mpt_tailq, mpt, links);
2148 	for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
2149 		pers = mpt_personalities[i];
2150 		if (pers == NULL) {
2151 			continue;
2152 		}
2153 		if (pers->probe(mpt) == 0) {
2154 			error = pers->attach(mpt);
2155 			if (error != 0) {
2156 				mpt_detach(mpt);
2157 				return (error);
2158 			}
2159 			mpt->mpt_pers_mask |= (0x1 << pers->id);
2160 			pers->use_count++;
2161 		}
2162 	}
2163 
2164 	/*
2165 	 * Now that we've attached everything, do the enable function
2166 	 * for all of the personalities. This allows the personalities
2167 	 * to do setups that are appropriate for them prior to enabling
2168 	 * any ports.
2169 	 */
2170 	for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
2171 		pers = mpt_personalities[i];
2172 		if (pers != NULL  && MPT_PERS_ATTACHED(pers, mpt) != 0) {
2173 			error = pers->enable(mpt);
2174 			if (error != 0) {
2175 				mpt_prt(mpt, "personality %s attached but would"
2176 				    " not enable (%d)\n", pers->name, error);
2177 				mpt_detach(mpt);
2178 				return (error);
2179 			}
2180 		}
2181 	}
2182 	return (0);
2183 }
2184 
2185 int
2186 mpt_shutdown(struct mpt_softc *mpt)
2187 {
2188 	struct mpt_personality *pers;
2189 
2190 	MPT_PERS_FOREACH_REVERSE(mpt, pers) {
2191 		pers->shutdown(mpt);
2192 	}
2193 	return (0);
2194 }
2195 
2196 int
2197 mpt_detach(struct mpt_softc *mpt)
2198 {
2199 	struct mpt_personality *pers;
2200 
2201 	MPT_PERS_FOREACH_REVERSE(mpt, pers) {
2202 		pers->detach(mpt);
2203 		mpt->mpt_pers_mask &= ~(0x1 << pers->id);
2204 		pers->use_count--;
2205 	}
2206 	TAILQ_REMOVE(&mpt_tailq, mpt, links);
2207 	return (0);
2208 }
2209 
2210 int
2211 mpt_core_load(struct mpt_personality *pers)
2212 {
2213 	int i;
2214 
2215 	/*
2216 	 * Setup core handlers and insert the default handler
2217 	 * into all "empty slots".
2218 	 */
2219 	for (i = 0; i < MPT_NUM_REPLY_HANDLERS; i++) {
2220 		mpt_reply_handlers[i] = mpt_default_reply_handler;
2221 	}
2222 
2223 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_EVENTS)] =
2224 	    mpt_event_reply_handler;
2225 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_CONFIG)] =
2226 	    mpt_config_reply_handler;
2227 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_HANDSHAKE)] =
2228 	    mpt_handshake_reply_handler;
2229 	return (0);
2230 }
2231 
2232 /*
2233  * Initialize per-instance driver data and perform
2234  * initial controller configuration.
2235  */
2236 int
2237 mpt_core_attach(struct mpt_softc *mpt)
2238 {
2239         int val, error;
2240 
2241 	LIST_INIT(&mpt->ack_frames);
2242 	/* Put all request buffers on the free list */
2243 	TAILQ_INIT(&mpt->request_pending_list);
2244 	TAILQ_INIT(&mpt->request_free_list);
2245 	TAILQ_INIT(&mpt->request_timeout_list);
2246 	MPT_LOCK(mpt);
2247 	for (val = 0; val < MPT_MAX_REQUESTS(mpt); val++) {
2248 		request_t *req = &mpt->request_pool[val];
2249 		req->state = REQ_STATE_ALLOCATED;
2250 		mpt_free_request(mpt, req);
2251 	}
2252 	MPT_UNLOCK(mpt);
2253 	for (val = 0; val < MPT_MAX_LUNS; val++) {
2254 		STAILQ_INIT(&mpt->trt[val].atios);
2255 		STAILQ_INIT(&mpt->trt[val].inots);
2256 	}
2257 	STAILQ_INIT(&mpt->trt_wildcard.atios);
2258 	STAILQ_INIT(&mpt->trt_wildcard.inots);
2259 #ifdef	MPT_TEST_MULTIPATH
2260 	mpt->failure_id = -1;
2261 #endif
2262 	mpt->scsi_tgt_handler_id = MPT_HANDLER_ID_NONE;
2263 	mpt_sysctl_attach(mpt);
2264 	mpt_lprt(mpt, MPT_PRT_DEBUG, "doorbell req = %s\n",
2265 	    mpt_ioc_diag(mpt_read(mpt, MPT_OFFSET_DOORBELL)));
2266 
2267 	MPT_LOCK(mpt);
2268 	error = mpt_configure_ioc(mpt, 0, 0);
2269 	MPT_UNLOCK(mpt);
2270 
2271 	return (error);
2272 }
2273 
2274 int
2275 mpt_core_enable(struct mpt_softc *mpt)
2276 {
2277 	/*
2278 	 * We enter with the IOC enabled, but async events
2279 	 * not enabled, ports not enabled and interrupts
2280 	 * not enabled.
2281 	 */
2282 	MPT_LOCK(mpt);
2283 
2284 	/*
2285 	 * Enable asynchronous event reporting- all personalities
2286 	 * have attached so that they should be able to now field
2287 	 * async events.
2288 	 */
2289 	mpt_send_event_request(mpt, 1);
2290 
2291 	/*
2292 	 * Catch any pending interrupts
2293 	 *
2294 	 * This seems to be crucial- otherwise
2295 	 * the portenable below times out.
2296 	 */
2297 	mpt_intr(mpt);
2298 
2299 	/*
2300 	 * Enable Interrupts
2301 	 */
2302 	mpt_enable_ints(mpt);
2303 
2304 	/*
2305 	 * Catch any pending interrupts
2306 	 *
2307 	 * This seems to be crucial- otherwise
2308 	 * the portenable below times out.
2309 	 */
2310 	mpt_intr(mpt);
2311 
2312 	/*
2313 	 * Enable the port.
2314 	 */
2315 	if (mpt_send_port_enable(mpt, 0) != MPT_OK) {
2316 		mpt_prt(mpt, "failed to enable port 0\n");
2317 		MPT_UNLOCK(mpt);
2318 		return (ENXIO);
2319 	}
2320 	MPT_UNLOCK(mpt);
2321 	return (0);
2322 }
2323 
2324 void
2325 mpt_core_shutdown(struct mpt_softc *mpt)
2326 {
2327 	mpt_disable_ints(mpt);
2328 }
2329 
2330 void
2331 mpt_core_detach(struct mpt_softc *mpt)
2332 {
2333 	/*
2334 	 * XXX: FREE MEMORY
2335 	 */
2336 	mpt_disable_ints(mpt);
2337 }
2338 
2339 int
2340 mpt_core_unload(struct mpt_personality *pers)
2341 {
2342 	/* Unload is always successfull. */
2343 	return (0);
2344 }
2345 
2346 #define FW_UPLOAD_REQ_SIZE				\
2347 	(sizeof(MSG_FW_UPLOAD) - sizeof(SGE_MPI_UNION)	\
2348        + sizeof(FW_UPLOAD_TCSGE) + sizeof(SGE_SIMPLE32))
2349 
2350 static int
2351 mpt_upload_fw(struct mpt_softc *mpt)
2352 {
2353 	uint8_t fw_req_buf[FW_UPLOAD_REQ_SIZE];
2354 	MSG_FW_UPLOAD_REPLY fw_reply;
2355 	MSG_FW_UPLOAD *fw_req;
2356 	FW_UPLOAD_TCSGE *tsge;
2357 	SGE_SIMPLE32 *sge;
2358 	uint32_t flags;
2359 	int error;
2360 
2361 	memset(&fw_req_buf, 0, sizeof(fw_req_buf));
2362 	fw_req = (MSG_FW_UPLOAD *)fw_req_buf;
2363 	fw_req->ImageType = MPI_FW_UPLOAD_ITYPE_FW_IOC_MEM;
2364 	fw_req->Function = MPI_FUNCTION_FW_UPLOAD;
2365 	fw_req->MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
2366 	tsge = (FW_UPLOAD_TCSGE *)&fw_req->SGL;
2367 	tsge->DetailsLength = 12;
2368 	tsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
2369 	tsge->ImageSize = htole32(mpt->fw_image_size);
2370 	sge = (SGE_SIMPLE32 *)(tsge + 1);
2371 	flags = (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER
2372 	      | MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_SIMPLE_ELEMENT
2373 	      | MPI_SGE_FLAGS_32_BIT_ADDRESSING | MPI_SGE_FLAGS_IOC_TO_HOST);
2374 	flags <<= MPI_SGE_FLAGS_SHIFT;
2375 	sge->FlagsLength = htole32(flags | mpt->fw_image_size);
2376 	sge->Address = htole32(mpt->fw_phys);
2377 	error = mpt_send_handshake_cmd(mpt, sizeof(fw_req_buf), &fw_req_buf);
2378 	if (error)
2379 		return(error);
2380 	error = mpt_recv_handshake_reply(mpt, sizeof(fw_reply), &fw_reply);
2381 	return (error);
2382 }
2383 
2384 static void
2385 mpt_diag_outsl(struct mpt_softc *mpt, uint32_t addr,
2386 	       uint32_t *data, bus_size_t len)
2387 {
2388 	uint32_t *data_end;
2389 
2390 	data_end = data + (roundup2(len, sizeof(uint32_t)) / 4);
2391 	if (mpt->is_sas) {
2392 		pci_enable_io(mpt->dev, SYS_RES_IOPORT);
2393 	}
2394 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, addr);
2395 	while (data != data_end) {
2396 		mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, *data);
2397 		data++;
2398 	}
2399 	if (mpt->is_sas) {
2400 		pci_disable_io(mpt->dev, SYS_RES_IOPORT);
2401 	}
2402 }
2403 
2404 static int
2405 mpt_download_fw(struct mpt_softc *mpt)
2406 {
2407 	MpiFwHeader_t *fw_hdr;
2408 	int error;
2409 	uint32_t ext_offset;
2410 	uint32_t data;
2411 
2412 	mpt_prt(mpt, "Downloading Firmware - Image Size %d\n",
2413 		mpt->fw_image_size);
2414 
2415 	error = mpt_enable_diag_mode(mpt);
2416 	if (error != 0) {
2417 		mpt_prt(mpt, "Could not enter diagnostic mode!\n");
2418 		return (EIO);
2419 	}
2420 
2421 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC,
2422 		  MPI_DIAG_RW_ENABLE|MPI_DIAG_DISABLE_ARM);
2423 
2424 	fw_hdr = (MpiFwHeader_t *)mpt->fw_image;
2425 	mpt_diag_outsl(mpt, fw_hdr->LoadStartAddress, (uint32_t*)fw_hdr,
2426 		       fw_hdr->ImageSize);
2427 
2428 	ext_offset = fw_hdr->NextImageHeaderOffset;
2429 	while (ext_offset != 0) {
2430 		MpiExtImageHeader_t *ext;
2431 
2432 		ext = (MpiExtImageHeader_t *)((uintptr_t)fw_hdr + ext_offset);
2433 		ext_offset = ext->NextImageHeaderOffset;
2434 
2435 		mpt_diag_outsl(mpt, ext->LoadStartAddress, (uint32_t*)ext,
2436 			       ext->ImageSize);
2437 	}
2438 
2439 	if (mpt->is_sas) {
2440 		pci_enable_io(mpt->dev, SYS_RES_IOPORT);
2441 	}
2442 	/* Setup the address to jump to on reset. */
2443 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, fw_hdr->IopResetRegAddr);
2444 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, fw_hdr->IopResetVectorValue);
2445 
2446 	/*
2447 	 * The controller sets the "flash bad" status after attempting
2448 	 * to auto-boot from flash.  Clear the status so that the controller
2449 	 * will continue the boot process with our newly installed firmware.
2450 	 */
2451 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
2452 	data = mpt_pio_read(mpt, MPT_OFFSET_DIAG_DATA) | MPT_DIAG_MEM_CFG_BADFL;
2453 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
2454 	mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, data);
2455 
2456 	if (mpt->is_sas) {
2457 		pci_disable_io(mpt->dev, SYS_RES_IOPORT);
2458 	}
2459 
2460 	/*
2461 	 * Re-enable the processor and clear the boot halt flag.
2462 	 */
2463 	data = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
2464 	data &= ~(MPI_DIAG_PREVENT_IOC_BOOT|MPI_DIAG_DISABLE_ARM);
2465 	mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, data);
2466 
2467 	mpt_disable_diag_mode(mpt);
2468 	return (0);
2469 }
2470 
2471 /*
2472  * Allocate/Initialize data structures for the controller.  Called
2473  * once at instance startup.
2474  */
2475 static int
2476 mpt_configure_ioc(struct mpt_softc *mpt, int tn, int needreset)
2477 {
2478 	PTR_MSG_PORT_FACTS_REPLY pfp;
2479 	int error,  port;
2480 	size_t len;
2481 
2482 	if (tn == MPT_MAX_TRYS) {
2483 		return (-1);
2484 	}
2485 
2486 	/*
2487 	 * No need to reset if the IOC is already in the READY state.
2488 	 *
2489 	 * Force reset if initialization failed previously.
2490 	 * Note that a hard_reset of the second channel of a '929
2491 	 * will stop operation of the first channel.  Hopefully, if the
2492 	 * first channel is ok, the second will not require a hard
2493 	 * reset.
2494 	 */
2495 	if (needreset || MPT_STATE(mpt_rd_db(mpt)) != MPT_DB_STATE_READY) {
2496 		if (mpt_reset(mpt, FALSE) != MPT_OK) {
2497 			return (mpt_configure_ioc(mpt, tn++, 1));
2498 		}
2499 		needreset = 0;
2500 	}
2501 
2502 	if (mpt_get_iocfacts(mpt, &mpt->ioc_facts) != MPT_OK) {
2503 		mpt_prt(mpt, "mpt_get_iocfacts failed\n");
2504 		return (mpt_configure_ioc(mpt, tn++, 1));
2505 	}
2506 	mpt2host_iocfacts_reply(&mpt->ioc_facts);
2507 
2508 	mpt_prt(mpt, "MPI Version=%d.%d.%d.%d\n",
2509 	    mpt->ioc_facts.MsgVersion >> 8,
2510 	    mpt->ioc_facts.MsgVersion & 0xFF,
2511 	    mpt->ioc_facts.HeaderVersion >> 8,
2512 	    mpt->ioc_facts.HeaderVersion & 0xFF);
2513 
2514 	/*
2515 	 * Now that we know request frame size, we can calculate
2516 	 * the actual (reasonable) segment limit for read/write I/O.
2517 	 *
2518 	 * This limit is constrained by:
2519 	 *
2520 	 *  + The size of each area we allocate per command (and how
2521 	 *    many chain segments we can fit into it).
2522 	 *  + The total number of areas we've set up.
2523 	 *  + The actual chain depth the card will allow.
2524 	 *
2525 	 * The first area's segment count is limited by the I/O request
2526 	 * at the head of it. We cannot allocate realistically more
2527 	 * than MPT_MAX_REQUESTS areas. Therefore, to account for both
2528 	 * conditions, we'll just start out with MPT_MAX_REQUESTS-2.
2529 	 *
2530 	 */
2531 	/* total number of request areas we (can) allocate */
2532 	mpt->max_seg_cnt = MPT_MAX_REQUESTS(mpt) - 2;
2533 
2534 	/* converted to the number of chain areas possible */
2535 	mpt->max_seg_cnt *= MPT_NRFM(mpt);
2536 
2537 	/* limited by the number of chain areas the card will support */
2538 	if (mpt->max_seg_cnt > mpt->ioc_facts.MaxChainDepth) {
2539 		mpt_lprt(mpt, MPT_PRT_DEBUG,
2540 		    "chain depth limited to %u (from %u)\n",
2541 		    mpt->ioc_facts.MaxChainDepth, mpt->max_seg_cnt);
2542 		mpt->max_seg_cnt = mpt->ioc_facts.MaxChainDepth;
2543 	}
2544 
2545 	/* converted to the number of simple sges in chain segments. */
2546 	mpt->max_seg_cnt *= (MPT_NSGL(mpt) - 1);
2547 
2548 	mpt_lprt(mpt, MPT_PRT_DEBUG, "Maximum Segment Count: %u\n",
2549 	    mpt->max_seg_cnt);
2550 	mpt_lprt(mpt, MPT_PRT_DEBUG, "MsgLength=%u IOCNumber = %d\n",
2551 	    mpt->ioc_facts.MsgLength, mpt->ioc_facts.IOCNumber);
2552 	mpt_lprt(mpt, MPT_PRT_DEBUG,
2553 	    "IOCFACTS: GlobalCredits=%d BlockSize=%u bytes "
2554 	    "Request Frame Size %u bytes Max Chain Depth %u\n",
2555 	    mpt->ioc_facts.GlobalCredits, mpt->ioc_facts.BlockSize,
2556 	    mpt->ioc_facts.RequestFrameSize << 2,
2557 	    mpt->ioc_facts.MaxChainDepth);
2558 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOCFACTS: Num Ports %d, FWImageSize %d, "
2559 	    "Flags=%#x\n", mpt->ioc_facts.NumberOfPorts,
2560 	    mpt->ioc_facts.FWImageSize, mpt->ioc_facts.Flags);
2561 
2562 	len = mpt->ioc_facts.NumberOfPorts * sizeof (MSG_PORT_FACTS_REPLY);
2563 	mpt->port_facts = malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
2564 	if (mpt->port_facts == NULL) {
2565 		mpt_prt(mpt, "unable to allocate memory for port facts\n");
2566 		return (ENOMEM);
2567 	}
2568 
2569 
2570 	if ((mpt->ioc_facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT) &&
2571 	    (mpt->fw_uploaded == 0)) {
2572 		struct mpt_map_info mi;
2573 
2574 		/*
2575 		 * In some configurations, the IOC's firmware is
2576 		 * stored in a shared piece of system NVRAM that
2577 		 * is only accessable via the BIOS.  In this
2578 		 * case, the firmware keeps a copy of firmware in
2579 		 * RAM until the OS driver retrieves it.  Once
2580 		 * retrieved, we are responsible for re-downloading
2581 		 * the firmware after any hard-reset.
2582 		 */
2583 		mpt->fw_image_size = mpt->ioc_facts.FWImageSize;
2584 		error = mpt_dma_tag_create(mpt, mpt->parent_dmat, 1, 0,
2585 		    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
2586 		    mpt->fw_image_size, 1, mpt->fw_image_size, 0,
2587 		    &mpt->fw_dmat);
2588 		if (error != 0) {
2589 			mpt_prt(mpt, "cannot create firmwarew dma tag\n");
2590 			return (ENOMEM);
2591 		}
2592 		error = bus_dmamem_alloc(mpt->fw_dmat,
2593 		    (void **)&mpt->fw_image, BUS_DMA_NOWAIT, &mpt->fw_dmap);
2594 		if (error != 0) {
2595 			mpt_prt(mpt, "cannot allocate firmware memory\n");
2596 			bus_dma_tag_destroy(mpt->fw_dmat);
2597 			return (ENOMEM);
2598 		}
2599 		mi.mpt = mpt;
2600 		mi.error = 0;
2601 		bus_dmamap_load(mpt->fw_dmat, mpt->fw_dmap,
2602 		    mpt->fw_image, mpt->fw_image_size, mpt_map_rquest, &mi, 0);
2603 		mpt->fw_phys = mi.phys;
2604 
2605 		error = mpt_upload_fw(mpt);
2606 		if (error != 0) {
2607 			mpt_prt(mpt, "firmware upload failed.\n");
2608 			bus_dmamap_unload(mpt->fw_dmat, mpt->fw_dmap);
2609 			bus_dmamem_free(mpt->fw_dmat, mpt->fw_image,
2610 			    mpt->fw_dmap);
2611 			bus_dma_tag_destroy(mpt->fw_dmat);
2612 			mpt->fw_image = NULL;
2613 			return (EIO);
2614 		}
2615 		mpt->fw_uploaded = 1;
2616 	}
2617 
2618 	for (port = 0; port < mpt->ioc_facts.NumberOfPorts; port++) {
2619 		pfp = &mpt->port_facts[port];
2620 		error = mpt_get_portfacts(mpt, 0, pfp);
2621 		if (error != MPT_OK) {
2622 			mpt_prt(mpt,
2623 			    "mpt_get_portfacts on port %d failed\n", port);
2624 			free(mpt->port_facts, M_DEVBUF);
2625 			mpt->port_facts = NULL;
2626 			return (mpt_configure_ioc(mpt, tn++, 1));
2627 		}
2628 		mpt2host_portfacts_reply(pfp);
2629 
2630 		if (port > 0) {
2631 			error = MPT_PRT_INFO;
2632 		} else {
2633 			error = MPT_PRT_DEBUG;
2634 		}
2635 		mpt_lprt(mpt, error,
2636 		    "PORTFACTS[%d]: Type %x PFlags %x IID %d MaxDev %d\n",
2637 		    port, pfp->PortType, pfp->ProtocolFlags, pfp->PortSCSIID,
2638 		    pfp->MaxDevices);
2639 
2640 	}
2641 
2642 	/*
2643 	 * XXX: Not yet supporting more than port 0
2644 	 */
2645 	pfp = &mpt->port_facts[0];
2646 	if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_FC) {
2647 		mpt->is_fc = 1;
2648 		mpt->is_sas = 0;
2649 		mpt->is_spi = 0;
2650 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_SAS) {
2651 		mpt->is_fc = 0;
2652 		mpt->is_sas = 1;
2653 		mpt->is_spi = 0;
2654 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_SCSI) {
2655 		mpt->is_fc = 0;
2656 		mpt->is_sas = 0;
2657 		mpt->is_spi = 1;
2658 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_ISCSI) {
2659 		mpt_prt(mpt, "iSCSI not supported yet\n");
2660 		return (ENXIO);
2661 	} else if (pfp->PortType == MPI_PORTFACTS_PORTTYPE_INACTIVE) {
2662 		mpt_prt(mpt, "Inactive Port\n");
2663 		return (ENXIO);
2664 	} else {
2665 		mpt_prt(mpt, "unknown Port Type %#x\n", pfp->PortType);
2666 		return (ENXIO);
2667 	}
2668 
2669 	/*
2670 	 * Set our role with what this port supports.
2671 	 *
2672 	 * Note this might be changed later in different modules
2673 	 * if this is different from what is wanted.
2674 	 */
2675 	mpt->role = MPT_ROLE_NONE;
2676 	if (pfp->ProtocolFlags & MPI_PORTFACTS_PROTOCOL_INITIATOR) {
2677 		mpt->role |= MPT_ROLE_INITIATOR;
2678 	}
2679 	if (pfp->ProtocolFlags & MPI_PORTFACTS_PROTOCOL_TARGET) {
2680 		mpt->role |= MPT_ROLE_TARGET;
2681 	}
2682 
2683 	/*
2684 	 * Enable the IOC
2685 	 */
2686 	if (mpt_enable_ioc(mpt, 0) != MPT_OK) {
2687 		mpt_prt(mpt, "unable to initialize IOC\n");
2688 		return (ENXIO);
2689 	}
2690 
2691 	/*
2692 	 * Read IOC configuration information.
2693 	 *
2694 	 * We need this to determine whether or not we have certain
2695 	 * settings for Integrated Mirroring (e.g.).
2696 	 */
2697 	mpt_read_config_info_ioc(mpt);
2698 
2699 	return (0);
2700 }
2701 
2702 static int
2703 mpt_enable_ioc(struct mpt_softc *mpt, int portenable)
2704 {
2705 	uint32_t pptr;
2706 	int val;
2707 
2708 	if (mpt_send_ioc_init(mpt, MPI_WHOINIT_HOST_DRIVER) != MPT_OK) {
2709 		mpt_prt(mpt, "mpt_send_ioc_init failed\n");
2710 		return (EIO);
2711 	}
2712 
2713 	mpt_lprt(mpt, MPT_PRT_DEBUG, "mpt_send_ioc_init ok\n");
2714 
2715 	if (mpt_wait_state(mpt, MPT_DB_STATE_RUNNING) != MPT_OK) {
2716 		mpt_prt(mpt, "IOC failed to go to run state\n");
2717 		return (ENXIO);
2718 	}
2719 	mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC now at RUNSTATE\n");
2720 
2721 	/*
2722 	 * Give it reply buffers
2723 	 *
2724 	 * Do *not* exceed global credits.
2725 	 */
2726 	for (val = 0, pptr = mpt->reply_phys;
2727 	    (pptr + MPT_REPLY_SIZE) < (mpt->reply_phys + PAGE_SIZE);
2728 	     pptr += MPT_REPLY_SIZE) {
2729 		mpt_free_reply(mpt, pptr);
2730 		if (++val == mpt->ioc_facts.GlobalCredits - 1)
2731 			break;
2732 	}
2733 
2734 
2735 	/*
2736 	 * Enable the port if asked. This is only done if we're resetting
2737 	 * the IOC after initial startup.
2738 	 */
2739 	if (portenable) {
2740 		/*
2741 		 * Enable asynchronous event reporting
2742 		 */
2743 		mpt_send_event_request(mpt, 1);
2744 
2745 		if (mpt_send_port_enable(mpt, 0) != MPT_OK) {
2746 			mpt_prt(mpt, "failed to enable port 0\n");
2747 			return (ENXIO);
2748 		}
2749 	}
2750 	return (MPT_OK);
2751 }
2752 
2753 /*
2754  * Endian Conversion Functions- only used on Big Endian machines
2755  */
2756 #if	_BYTE_ORDER == _BIG_ENDIAN
2757 void
2758 mpt2host_sge_simple_union(SGE_SIMPLE_UNION *sge)
2759 {
2760 	MPT_2_HOST32(sge, FlagsLength);
2761 	MPT_2_HOST32(sge, u.Address64.Low);
2762 	MPT_2_HOST32(sge, u.Address64.High);
2763 }
2764 
2765 void
2766 mpt2host_iocfacts_reply(MSG_IOC_FACTS_REPLY *rp)
2767 {
2768 	MPT_2_HOST16(rp, MsgVersion);
2769 	MPT_2_HOST16(rp, HeaderVersion);
2770 	MPT_2_HOST32(rp, MsgContext);
2771 	MPT_2_HOST16(rp, IOCExceptions);
2772 	MPT_2_HOST16(rp, IOCStatus);
2773 	MPT_2_HOST32(rp, IOCLogInfo);
2774 	MPT_2_HOST16(rp, ReplyQueueDepth);
2775 	MPT_2_HOST16(rp, RequestFrameSize);
2776 	MPT_2_HOST16(rp, Reserved_0101_FWVersion);
2777 	MPT_2_HOST16(rp, ProductID);
2778 	MPT_2_HOST32(rp, CurrentHostMfaHighAddr);
2779 	MPT_2_HOST16(rp, GlobalCredits);
2780 	MPT_2_HOST32(rp, CurrentSenseBufferHighAddr);
2781 	MPT_2_HOST16(rp, CurReplyFrameSize);
2782 	MPT_2_HOST32(rp, FWImageSize);
2783 	MPT_2_HOST32(rp, IOCCapabilities);
2784 	MPT_2_HOST32(rp, FWVersion.Word);
2785 	MPT_2_HOST16(rp, HighPriorityQueueDepth);
2786 	MPT_2_HOST16(rp, Reserved2);
2787 	mpt2host_sge_simple_union(&rp->HostPageBufferSGE);
2788 	MPT_2_HOST32(rp, ReplyFifoHostSignalingAddr);
2789 }
2790 
2791 void
2792 mpt2host_portfacts_reply(MSG_PORT_FACTS_REPLY *pfp)
2793 {
2794 	MPT_2_HOST16(pfp, Reserved);
2795 	MPT_2_HOST16(pfp, Reserved1);
2796 	MPT_2_HOST32(pfp, MsgContext);
2797 	MPT_2_HOST16(pfp, Reserved2);
2798 	MPT_2_HOST16(pfp, IOCStatus);
2799 	MPT_2_HOST32(pfp, IOCLogInfo);
2800 	MPT_2_HOST16(pfp, MaxDevices);
2801 	MPT_2_HOST16(pfp, PortSCSIID);
2802 	MPT_2_HOST16(pfp, ProtocolFlags);
2803 	MPT_2_HOST16(pfp, MaxPostedCmdBuffers);
2804 	MPT_2_HOST16(pfp, MaxPersistentIDs);
2805 	MPT_2_HOST16(pfp, MaxLanBuckets);
2806 	MPT_2_HOST16(pfp, Reserved4);
2807 	MPT_2_HOST32(pfp, Reserved5);
2808 }
2809 void
2810 mpt2host_config_page_ioc2(CONFIG_PAGE_IOC_2 *ioc2)
2811 {
2812 	int i;
2813 	ioc2->CapabilitiesFlags = htole32(ioc2->CapabilitiesFlags);
2814 	for (i = 0; i < MPI_IOC_PAGE_2_RAID_VOLUME_MAX; i++) {
2815 		MPT_2_HOST16(ioc2, RaidVolume[i].Reserved3);
2816 	}
2817 }
2818 
2819 void
2820 mpt2host_config_page_raid_vol_0(CONFIG_PAGE_RAID_VOL_0 *volp)
2821 {
2822 	int i;
2823 	MPT_2_HOST16(volp, VolumeStatus.Reserved);
2824 	MPT_2_HOST16(volp, VolumeSettings.Settings);
2825 	MPT_2_HOST32(volp, MaxLBA);
2826 	MPT_2_HOST32(volp, MaxLBAHigh);
2827 	MPT_2_HOST32(volp, StripeSize);
2828 	MPT_2_HOST32(volp, Reserved2);
2829 	MPT_2_HOST32(volp, Reserved3);
2830 	for (i = 0; i < MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX; i++) {
2831 		MPT_2_HOST16(volp, PhysDisk[i].Reserved);
2832 	}
2833 }
2834 
2835 void
2836 mpt2host_mpi_raid_vol_indicator(MPI_RAID_VOL_INDICATOR *vi)
2837 {
2838 	MPT_2_HOST16(vi, TotalBlocks.High);
2839 	MPT_2_HOST16(vi, TotalBlocks.Low);
2840 	MPT_2_HOST16(vi, BlocksRemaining.High);
2841 	MPT_2_HOST16(vi, BlocksRemaining.Low);
2842 }
2843 #endif
2844