xref: /dragonfly/sys/dev/raid/mpr/mpr_sas_lsi.c (revision dda92f98)
1 /*-
2  * Copyright (c) 2011-2015 LSI Corp.
3  * Copyright (c) 2013-2016 Avago Technologies
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
28  *
29  * $FreeBSD: head/sys/dev/mpr/mpr_sas_lsi.c 331228 2018-03-19 23:21:45Z mav $
30  */
31 
32 /* Communications core for Avago Technologies (LSI) MPT3 */
33 
34 /* TODO Move headers to mprvar */
35 #include <sys/types.h>
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/module.h>
40 #include <sys/bus.h>
41 #include <sys/conf.h>
42 #include <sys/bio.h>
43 #include <sys/malloc.h>
44 #include <sys/uio.h>
45 #include <sys/sysctl.h>
46 #include <sys/endian.h>
47 #include <sys/queue.h>
48 #include <sys/kthread.h>
49 #include <sys/taskqueue.h>
50 #include <sys/sbuf.h>
51 #include <sys/eventhandler.h>
52 
53 #include <sys/rman.h>
54 
55 #include <machine/stdarg.h>
56 
57 #include <bus/cam/cam.h>
58 #include <bus/cam/cam_ccb.h>
59 #include <bus/cam/cam_debug.h>
60 #include <bus/cam/cam_sim.h>
61 #include <bus/cam/cam_xpt_sim.h>
62 #include <bus/cam/cam_xpt_periph.h>
63 #include <bus/cam/cam_periph.h>
64 #include <bus/cam/scsi/scsi_all.h>
65 #include <bus/cam/scsi/scsi_message.h>
66 
67 #include <dev/raid/mpr/mpi/mpi2_type.h>
68 #include <dev/raid/mpr/mpi/mpi2.h>
69 #include <dev/raid/mpr/mpi/mpi2_ioc.h>
70 #include <dev/raid/mpr/mpi/mpi2_sas.h>
71 #include <dev/raid/mpr/mpi/mpi2_pci.h>
72 #include <dev/raid/mpr/mpi/mpi2_cnfg.h>
73 #include <dev/raid/mpr/mpi/mpi2_init.h>
74 #include <dev/raid/mpr/mpi/mpi2_raid.h>
75 #include <dev/raid/mpr/mpi/mpi2_tool.h>
76 #include <dev/raid/mpr/mpr_ioctl.h>
77 #include <dev/raid/mpr/mprvar.h>
78 #include <dev/raid/mpr/mpr_table.h>
79 #include <dev/raid/mpr/mpr_sas.h>
80 
81 /* For Hashed SAS Address creation for SATA Drives */
82 #define MPT2SAS_SN_LEN 20
83 #define MPT2SAS_MN_LEN 40
84 
85 struct mpr_fw_event_work {
86 	u16			event;
87 	void			*event_data;
88 	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
89 };
90 
91 union _sata_sas_address {
92 	u8 wwid[8];
93 	struct {
94 		u32 high;
95 		u32 low;
96 	} word;
97 };
98 
99 /*
100  * define the IDENTIFY DEVICE structure
101  */
102 struct _ata_identify_device_data {
103 	u16 reserved1[10];	/* 0-9 */
104 	u16 serial_number[10];	/* 10-19 */
105 	u16 reserved2[7];	/* 20-26 */
106 	u16 model_number[20];	/* 27-46*/
107 	u16 reserved3[170];	/* 47-216 */
108 	u16 rotational_speed;	/* 217 */
109 	u16 reserved4[38];	/* 218-255 */
110 };
111 static u32 event_count;
112 static void mprsas_fw_work(struct mpr_softc *sc,
113     struct mpr_fw_event_work *fw_event);
114 static void mprsas_fw_event_free(struct mpr_softc *,
115     struct mpr_fw_event_work *);
116 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
117 static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
118     u8 linkrate);
119 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
120     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
121     u32 devinfo);
122 static void mprsas_ata_id_timeout(void *data);
123 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
124     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
125 static int mprsas_volume_add(struct mpr_softc *sc,
126     u16 handle);
127 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc);
128 static void mprsas_stop_unit_done(struct cam_periph *periph,
129     union ccb *done_ccb);
130 
131 void
132 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
133     MPI2_EVENT_NOTIFICATION_REPLY *event)
134 {
135 	struct mpr_fw_event_work *fw_event;
136 	u16 sz;
137 
138 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
139 	MPR_DPRINT_EVENT(sc, sas, event);
140 	mprsas_record_event(sc, event);
141 
142 	fw_event = kmalloc(sizeof(struct mpr_fw_event_work), M_MPR,
143 	     M_ZERO|M_NOWAIT);
144 	if (!fw_event) {
145 		kprintf("%s: allocate failed for fw_event\n", __func__);
146 		return;
147 	}
148 	sz = le16toh(event->EventDataLength) * 4;
149 	fw_event->event_data = kmalloc(sz, M_MPR, M_ZERO|M_NOWAIT);
150 	if (!fw_event->event_data) {
151 		kprintf("%s: allocate failed for event_data\n", __func__);
152 		kfree(fw_event, M_MPR);
153 		return;
154 	}
155 
156 	bcopy(event->EventData, fw_event->event_data, sz);
157 	fw_event->event = event->Event;
158 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
159 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
160 	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
161 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
162 	    sc->track_mapping_events)
163 		sc->pending_map_events++;
164 
165 	/*
166 	 * When wait_for_port_enable flag is set, make sure that all the events
167 	 * are processed. Increment the startup_refcount and decrement it after
168 	 * events are processed.
169 	 */
170 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
171 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
172 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
173 	    sc->wait_for_port_enable)
174 		mprsas_startup_increment(sc->sassc);
175 
176 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
177 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
178 }
179 
180 static void
181 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
182 {
183 
184 	kfree(fw_event->event_data, M_MPR);
185 	kfree(fw_event, M_MPR);
186 }
187 
188 /**
189  * _mpr_fw_work - delayed task for processing firmware events
190  * @sc: per adapter object
191  * @fw_event: The fw_event_work object
192  * Context: user.
193  *
194  * Return nothing.
195  */
196 static void
197 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
198 {
199 	struct mprsas_softc *sassc;
200 	sassc = sc->sassc;
201 
202 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
203 	    event_count++, __func__, fw_event->event);
204 	switch (fw_event->event) {
205 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
206 	{
207 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
208 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
209 		uint8_t i;
210 
211 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
212 		    fw_event->event_data;
213 
214 		mpr_mapping_topology_change_event(sc, fw_event->event_data);
215 
216 		for (i = 0; i < data->NumEntries; i++) {
217 			phy = &data->PHY[i];
218 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
219 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
220 				if (mprsas_add_device(sc,
221 				    le16toh(phy->AttachedDevHandle),
222 				    phy->LinkRate)) {
223 					mpr_dprint(sc, MPR_ERROR, "%s: "
224 					    "failed to add device with handle "
225 					    "0x%x\n", __func__,
226 					    le16toh(phy->AttachedDevHandle));
227 					mprsas_prepare_remove(sassc, le16toh(
228 					    phy->AttachedDevHandle));
229 				}
230 				break;
231 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
232 				mprsas_prepare_remove(sassc, le16toh(
233 				    phy->AttachedDevHandle));
234 				break;
235 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
236 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
237 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
238 			default:
239 				break;
240 			}
241 		}
242 		/*
243 		 * refcount was incremented for this event in
244 		 * mprsas_evt_handler.  Decrement it here because the event has
245 		 * been processed.
246 		 */
247 		mprsas_startup_decrement(sassc);
248 		break;
249 	}
250 	case MPI2_EVENT_SAS_DISCOVERY:
251 	{
252 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
253 
254 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
255 
256 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
257 			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
258 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
259 			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
260 			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
261 			mprsas_discovery_end(sassc);
262 		}
263 		break;
264 	}
265 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
266 	{
267 		Mpi2EventDataSasEnclDevStatusChange_t *data;
268 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
269 		    fw_event->event_data;
270 		mpr_mapping_enclosure_dev_status_change_event(sc,
271 		    fw_event->event_data);
272 		break;
273 	}
274 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
275 	{
276 		Mpi2EventIrConfigElement_t *element;
277 		int i;
278 		u8 foreign_config, reason;
279 		u16 elementType;
280 		Mpi2EventDataIrConfigChangeList_t *event_data;
281 		struct mprsas_target *targ;
282 		unsigned int id;
283 
284 		event_data = fw_event->event_data;
285 		foreign_config = (le32toh(event_data->Flags) &
286 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
287 
288 		element =
289 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
290 		id = mpr_mapping_get_raid_tid_from_handle(sc,
291 		    element->VolDevHandle);
292 
293 		mpr_mapping_ir_config_change_event(sc, event_data);
294 		for (i = 0; i < event_data->NumElements; i++, element++) {
295 			reason = element->ReasonCode;
296 			elementType = le16toh(element->ElementFlags) &
297 			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
298 			/*
299 			 * check for element type of Phys Disk or Hot Spare
300 			 */
301 			if ((elementType !=
302 			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
303 			    && (elementType !=
304 			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
305 				// do next element
306 				goto skip_fp_send;
307 
308 			/*
309 			 * check for reason of Hide, Unhide, PD Created, or PD
310 			 * Deleted
311 			 */
312 			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
313 			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
314 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
315 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
316 				goto skip_fp_send;
317 
318 			// check for a reason of Hide or PD Created
319 			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
320 			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
321 			{
322 				// build RAID Action message
323 				Mpi2RaidActionRequest_t	*action;
324 				Mpi2RaidActionReply_t *reply = NULL;
325 				struct mpr_command *cm;
326 				int error = 0;
327 				if ((cm = mpr_alloc_command(sc)) == NULL) {
328 					kprintf("%s: command alloc failed\n",
329 					    __func__);
330 					return;
331 				}
332 
333 				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
334 				    "from "
335 				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
336 				    ":\n");
337 				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
338 				action->Function = MPI2_FUNCTION_RAID_ACTION;
339 				action->Action =
340 				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
341 				action->PhysDiskNum = element->PhysDiskNum;
342 				cm->cm_desc.Default.RequestFlags =
343 				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
344 				error = mpr_request_polled(sc, &cm);
345 				if (cm != NULL)
346 					reply = (Mpi2RaidActionReply_t *)
347 					    cm->cm_reply;
348 				if (error || (reply == NULL)) {
349 					/* FIXME */
350 					/*
351 					 * If the poll returns error then we
352 					 * need to do diag reset
353 					 */
354 					kprintf("%s: poll for page completed "
355 					    "with error %d", __func__, error);
356 				}
357 				if (reply && (le16toh(reply->IOCStatus) &
358 				    MPI2_IOCSTATUS_MASK) !=
359 				    MPI2_IOCSTATUS_SUCCESS) {
360 					mpr_dprint(sc, MPR_ERROR, "%s: error "
361 					    "sending RaidActionPage; "
362 					    "iocstatus = 0x%x\n", __func__,
363 					    le16toh(reply->IOCStatus));
364 				}
365 
366 				if (cm)
367 					mpr_free_command(sc, cm);
368 			}
369 skip_fp_send:
370 			mpr_dprint(sc, MPR_EVENT, "Received "
371 			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
372 			    "code %x:\n", element->ReasonCode);
373 			switch (element->ReasonCode) {
374 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
375 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
376 				if (!foreign_config) {
377 					if (mprsas_volume_add(sc,
378 					    le16toh(element->VolDevHandle))) {
379 						kprintf("%s: failed to add RAID "
380 						    "volume with handle 0x%x\n",
381 						    __func__, le16toh(element->
382 						    VolDevHandle));
383 					}
384 				}
385 				break;
386 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
387 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
388 				/*
389 				 * Rescan after volume is deleted or removed.
390 				 */
391 				if (!foreign_config) {
392 					if (id == MPR_MAP_BAD_ID) {
393 						kprintf("%s: could not get ID "
394 						    "for volume with handle "
395 						    "0x%04x\n", __func__,
396 						    le16toh(element->
397 						    VolDevHandle));
398 						break;
399 					}
400 
401 					targ = &sassc->targets[id];
402 					targ->handle = 0x0;
403 					targ->encl_slot = 0x0;
404 					targ->encl_handle = 0x0;
405 					targ->encl_level_valid = 0x0;
406 					targ->encl_level = 0x0;
407 					targ->connector_name[0] = ' ';
408 					targ->connector_name[1] = ' ';
409 					targ->connector_name[2] = ' ';
410 					targ->connector_name[3] = ' ';
411 					targ->exp_dev_handle = 0x0;
412 					targ->phy_num = 0x0;
413 					targ->linkrate = 0x0;
414 					mprsas_rescan_target(sc, targ);
415 					kprintf("RAID target id 0x%x removed\n",
416 					    targ->tid);
417 				}
418 				break;
419 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
420 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
421 				/*
422 				 * Phys Disk of a volume has been created.  Hide
423 				 * it from the OS.
424 				 */
425 				targ = mprsas_find_target_by_handle(sassc, 0,
426 				    element->PhysDiskDevHandle);
427 				if (targ == NULL)
428 					break;
429 				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
430 				mprsas_rescan_target(sc, targ);
431 				break;
432 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
433 				/*
434 				 * Phys Disk of a volume has been deleted.
435 				 * Expose it to the OS.
436 				 */
437 				if (mprsas_add_device(sc,
438 				    le16toh(element->PhysDiskDevHandle), 0)) {
439 					kprintf("%s: failed to add device with "
440 					    "handle 0x%x\n", __func__,
441 					    le16toh(element->
442 					    PhysDiskDevHandle));
443 					mprsas_prepare_remove(sassc,
444 					    le16toh(element->
445 					    PhysDiskDevHandle));
446 				}
447 				break;
448 			}
449 		}
450 		/*
451 		 * refcount was incremented for this event in
452 		 * mprsas_evt_handler.  Decrement it here because the event has
453 		 * been processed.
454 		 */
455 		mprsas_startup_decrement(sassc);
456 		break;
457 	}
458 	case MPI2_EVENT_IR_VOLUME:
459 	{
460 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
461 
462 		/*
463 		 * Informational only.
464 		 */
465 		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
466 		switch (event_data->ReasonCode) {
467 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
468   			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
469   			    "changed from 0x%x to 0x%x for Volome with "
470  			    "handle 0x%x", le32toh(event_data->PreviousValue),
471  			    le32toh(event_data->NewValue),
472  			    le16toh(event_data->VolDevHandle));
473 			break;
474 		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
475   			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
476   			    "changed from 0x%x to 0x%x for Volome with "
477  			    "handle 0x%x", le32toh(event_data->PreviousValue),
478  			    le32toh(event_data->NewValue),
479  			    le16toh(event_data->VolDevHandle));
480 			break;
481 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
482   			mpr_dprint(sc, MPR_EVENT, "   Volume State "
483   			    "changed from 0x%x to 0x%x for Volome with "
484  			    "handle 0x%x", le32toh(event_data->PreviousValue),
485  			    le32toh(event_data->NewValue),
486  			    le16toh(event_data->VolDevHandle));
487 				u32 state;
488 				struct mprsas_target *targ;
489 				state = le32toh(event_data->NewValue);
490 				switch (state) {
491 				case MPI2_RAID_VOL_STATE_MISSING:
492 				case MPI2_RAID_VOL_STATE_FAILED:
493 					mprsas_prepare_volume_remove(sassc,
494 					    event_data->VolDevHandle);
495 					break;
496 
497 				case MPI2_RAID_VOL_STATE_ONLINE:
498 				case MPI2_RAID_VOL_STATE_DEGRADED:
499 				case MPI2_RAID_VOL_STATE_OPTIMAL:
500 					targ =
501 					    mprsas_find_target_by_handle(sassc,
502 					    0, event_data->VolDevHandle);
503 					if (targ) {
504 						kprintf("%s %d: Volume handle "
505 						    "0x%x is already added \n",
506 						    __func__, __LINE__,
507 						    event_data->VolDevHandle);
508 						break;
509 					}
510 					if (mprsas_volume_add(sc,
511 					    le16toh(event_data->
512 					    VolDevHandle))) {
513 						kprintf("%s: failed to add RAID "
514 						    "volume with handle 0x%x\n",
515 						    __func__, le16toh(
516 						    event_data->VolDevHandle));
517 					}
518 					break;
519 				default:
520 					break;
521 				}
522 			break;
523 		default:
524 			break;
525 		}
526 		break;
527 	}
528 	case MPI2_EVENT_IR_PHYSICAL_DISK:
529 	{
530 		Mpi2EventDataIrPhysicalDisk_t *event_data =
531 		    fw_event->event_data;
532 		struct mprsas_target *targ;
533 
534 		/*
535 		 * Informational only.
536 		 */
537 		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
538 		switch (event_data->ReasonCode) {
539 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
540   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
541   			    "changed from 0x%x to 0x%x for Phys Disk Number "
542   			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
543  			    "%d", le32toh(event_data->PreviousValue),
544  			    le32toh(event_data->NewValue),
545 			    event_data->PhysDiskNum,
546  			    le16toh(event_data->PhysDiskDevHandle),
547  			    le16toh(event_data->EnclosureHandle),
548 			    le16toh(event_data->Slot));
549 			break;
550 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
551   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
552   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
553   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
554  			    le32toh(event_data->PreviousValue),
555  			    le32toh(event_data->NewValue),
556 			    event_data->PhysDiskNum,
557  			    le16toh(event_data->PhysDiskDevHandle),
558  			    le16toh(event_data->EnclosureHandle),
559 			    le16toh(event_data->Slot));
560 			break;
561 		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
562   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
563   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
564   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
565  			    le32toh(event_data->PreviousValue),
566  			    le32toh(event_data->NewValue),
567 			    event_data->PhysDiskNum,
568  			    le16toh(event_data->PhysDiskDevHandle),
569  			    le16toh(event_data->EnclosureHandle),
570 			    le16toh(event_data->Slot));
571 			switch (event_data->NewValue) {
572 				case MPI2_RAID_PD_STATE_ONLINE:
573 				case MPI2_RAID_PD_STATE_DEGRADED:
574 				case MPI2_RAID_PD_STATE_REBUILDING:
575 				case MPI2_RAID_PD_STATE_OPTIMAL:
576 				case MPI2_RAID_PD_STATE_HOT_SPARE:
577 					targ = mprsas_find_target_by_handle(
578 					    sassc, 0,
579 					    event_data->PhysDiskDevHandle);
580 					if (targ) {
581 						targ->flags |=
582 						    MPR_TARGET_FLAGS_RAID_COMPONENT;
583 						kprintf("%s %d: Found Target "
584 						    "for handle 0x%x.\n",
585 						    __func__, __LINE__ ,
586 						    event_data->
587 						    PhysDiskDevHandle);
588 					}
589 				break;
590 				case MPI2_RAID_PD_STATE_OFFLINE:
591 				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
592 				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
593 				default:
594 					targ = mprsas_find_target_by_handle(
595 					    sassc, 0,
596 					    event_data->PhysDiskDevHandle);
597 					if (targ) {
598 						targ->flags |=
599 					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
600 						kprintf("%s %d: Found Target "
601 						    "for handle 0x%x.  \n",
602 						    __func__, __LINE__ ,
603 						    event_data->
604 						    PhysDiskDevHandle);
605 					}
606 				break;
607 			}
608 		default:
609 			break;
610 		}
611 		break;
612 	}
613 	case MPI2_EVENT_IR_OPERATION_STATUS:
614 	{
615 		Mpi2EventDataIrOperationStatus_t *event_data =
616 		    fw_event->event_data;
617 
618 		/*
619 		 * Informational only.
620 		 */
621 		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
622 		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
623 		    "percent complete for Volume with handle 0x%x",
624 		    event_data->RAIDOperation, event_data->PercentComplete,
625 		    le16toh(event_data->VolDevHandle));
626 		break;
627 	}
628 	case MPI2_EVENT_TEMP_THRESHOLD:
629 	{
630 		pMpi2EventDataTemperature_t	temp_event;
631 
632 		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
633 
634 		/*
635 		 * The Temp Sensor Count must be greater than the event's Sensor
636 		 * Num to be valid.  If valid, print the temp thresholds that
637 		 * have been exceeded.
638 		 */
639 		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
640 			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
641 			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
642 			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
643 			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
644 			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
645 			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
646 			    temp_event->SensorNum);
647 			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
648 			    "%d\n", temp_event->CurrentTemperature);
649 		}
650 		break;
651 	}
652 	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
653 	{
654 		pMpi26EventDataActiveCableExcept_t	ace_event_data;
655 		ace_event_data =
656 		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
657 
658 		switch(ace_event_data->ReasonCode) {
659 		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
660 		{
661 			mpr_printf(sc, "Currently a cable with "
662 			    "ReceptacleID %d cannot be powered and device "
663 			    "connected to this active cable will not be seen. "
664 			    "This active cable requires %d mW of power.\n",
665 			    ace_event_data->ReceptacleID,
666 			    ace_event_data->ActiveCablePowerRequirement);
667 			break;
668 		}
669 		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
670 		{
671 			mpr_printf(sc, "Currently a cable with "
672 			    "ReceptacleID %d is not running at optimal speed "
673 			    "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
674 			break;
675 		}
676 		default:
677 			break;
678 		}
679 		break;
680 	}
681 	case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
682 	{
683 		pMpi25EventDataSasDeviceDiscoveryError_t discovery_error_data;
684 		uint64_t sas_address;
685 
686 		discovery_error_data =
687 		    (pMpi25EventDataSasDeviceDiscoveryError_t)
688 		    fw_event->event_data;
689 
690 		sas_address = discovery_error_data->SASAddress.High;
691 		sas_address = (sas_address << 32) |
692 		    discovery_error_data->SASAddress.Low;
693 
694 		switch(discovery_error_data->ReasonCode) {
695 		case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
696 		{
697 			mpr_printf(sc, "SMP command failed during discovery "
698 			    "for expander with SAS Address %jx and "
699 			    "handle 0x%x.\n", sas_address,
700 			    discovery_error_data->DevHandle);
701 			break;
702 		}
703 		case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
704 		{
705 			mpr_printf(sc, "SMP command timed out during "
706 			    "discovery for expander with SAS Address %jx and "
707 			    "handle 0x%x.\n", sas_address,
708 			    discovery_error_data->DevHandle);
709 			break;
710 		}
711 		default:
712 			break;
713 		}
714 		break;
715 	}
716 	case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
717 	{
718 		MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
719 		MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
720 		uint8_t i, link_rate;
721 		uint16_t handle;
722 
723 		data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
724 		    fw_event->event_data;
725 
726 		mpr_mapping_pcie_topology_change_event(sc,
727 		    fw_event->event_data);
728 
729 		for (i = 0; i < data->NumEntries; i++) {
730 			port_entry = &data->PortEntry[i];
731 			handle = le16toh(port_entry->AttachedDevHandle);
732 			link_rate = port_entry->CurrentPortInfo &
733 			    MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
734 			switch (port_entry->PortStatus) {
735 			case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
736 				if (link_rate <
737 				    MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
738 					mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
739 					    "add PCIe device with handle 0x%x "
740 					    "with unknown link rate.\n",
741 					    __func__, handle);
742 					break;
743 				}
744 				if (mprsas_add_pcie_device(sc, handle,
745 				    link_rate)) {
746 					mpr_dprint(sc, MPR_ERROR, "%s: failed "
747 					    "to add PCIe device with handle "
748 					    "0x%x\n", __func__, handle);
749 					mprsas_prepare_remove(sassc, handle);
750 				}
751 				break;
752 			case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
753 				mprsas_prepare_remove(sassc, handle);
754 				break;
755 			case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
756 			case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
757 			case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
758 			default:
759 				break;
760 			}
761 		}
762 		/*
763 		 * refcount was incremented for this event in
764 		 * mprsas_evt_handler.  Decrement it here because the event has
765 		 * been processed.
766 		 */
767 		mprsas_startup_decrement(sassc);
768 		break;
769 	}
770 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
771 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
772 	default:
773 		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
774 		    fw_event->event);
775 		break;
776 
777 	}
778 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
779 	    __func__, fw_event->event);
780 	mprsas_fw_event_free(sc, fw_event);
781 }
782 
783 void
784 mprsas_firmware_event_work(void *arg, int pending)
785 {
786 	struct mpr_fw_event_work *fw_event;
787 	struct mpr_softc *sc;
788 
789 	sc = (struct mpr_softc *)arg;
790 	mpr_lock(sc);
791 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
792 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
793 		mprsas_fw_work(sc, fw_event);
794 	}
795 	mpr_unlock(sc);
796 }
797 
798 static int
799 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
800 {
801 	char devstring[80];
802 	struct mprsas_softc *sassc;
803 	struct mprsas_target *targ;
804 	Mpi2ConfigReply_t mpi_reply;
805 	Mpi2SasDevicePage0_t config_page;
806 	uint64_t sas_address, parent_sas_address = 0;
807 	u32 device_info, parent_devinfo = 0;
808 	unsigned int id;
809 	int ret = 1, error = 0, i;
810 	struct mprsas_lun *lun;
811 	u8 is_SATA_SSD = 0;
812 	struct mpr_command *cm;
813 
814 	sassc = sc->sassc;
815 	mprsas_startup_increment(sassc);
816 	if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
817 	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
818 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
819 		    "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
820 		    handle, mpi_reply.IOCStatus);
821 		error = ENXIO;
822 		goto out;
823 	}
824 
825 	device_info = le32toh(config_page.DeviceInfo);
826 
827 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
828 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
829 		Mpi2ConfigReply_t tmp_mpi_reply;
830 		Mpi2SasDevicePage0_t parent_config_page;
831 
832 		if (mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
833 		    &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
834 		    le16toh(config_page.ParentDevHandle)) != 0) {
835 			mpr_dprint(sc, MPR_MAPPING|MPR_FAULT,
836 			    "Error reading parent SAS device %#x page0, "
837 			    "iocstatus= 0x%x\n",
838 			    le16toh(config_page.ParentDevHandle),
839 			    tmp_mpi_reply.IOCStatus);
840 		} else {
841 			parent_sas_address = parent_config_page.SASAddress.High;
842 			parent_sas_address = (parent_sas_address << 32) |
843 			    parent_config_page.SASAddress.Low;
844 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
845 		}
846 	}
847 	/* TODO Check proper endianness */
848 	sas_address = config_page.SASAddress.High;
849 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
850 	mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address from SAS device "
851 	    "page0 = %jx\n", handle, sas_address);
852 
853 	/*
854 	 * Always get SATA Identify information because this is used to
855 	 * determine if Start/Stop Unit should be sent to the drive when the
856 	 * system is shutdown.
857 	 */
858 	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
859 		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
860 		    handle, device_info, &is_SATA_SSD);
861 		if (ret) {
862 			mpr_dprint(sc, MPR_MAPPING|MPR_ERROR,
863 			    "%s: failed to get disk type (SSD or HDD) for SATA "
864 			    "device with handle 0x%04x\n",
865 			    __func__, handle);
866 		} else {
867 			mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address "
868 			    "from SATA device = %jx\n", handle, sas_address);
869 		}
870 	}
871 
872 	/*
873 	 * use_phynum:
874 	 *  1 - use the PhyNum field as a fallback to the mapping logic
875 	 *  0 - never use the PhyNum field
876 	 * -1 - only use the PhyNum field
877 	 *
878 	 * Note that using the Phy number to map a device can cause device adds
879 	 * to fail if multiple enclosures/expanders are in the topology. For
880 	 * example, if two devices are in the same slot number in two different
881 	 * enclosures within the topology, only one of those devices will be
882 	 * added. PhyNum mapping should not be used if multiple enclosures are
883 	 * in the topology.
884 	 */
885 	id = MPR_MAP_BAD_ID;
886 	if (sc->use_phynum != -1)
887 		id = mpr_mapping_get_tid(sc, sas_address, handle);
888 	if (id == MPR_MAP_BAD_ID) {
889 		if ((sc->use_phynum == 0) ||
890 		    ((id = config_page.PhyNum) > sassc->maxtargets)) {
891 			mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
892 			    "Could not get ID for device with handle 0x%04x\n",
893 			    __FILE__, __LINE__, __func__, handle);
894 			error = ENXIO;
895 			goto out;
896 		}
897 	}
898 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
899 	    __func__, id);
900 
901 	/*
902 	 * Only do the ID check and reuse check if the target is not from a
903 	 * RAID Component. For Physical Disks of a Volume, the ID will be reused
904 	 * when a volume is deleted because the mapping entry for the PD will
905 	 * still be in the mapping table. The ID check should not be done here
906 	 * either since this PD is already being used.
907 	 */
908 	targ = &sassc->targets[id];
909 	if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
910 		if (mprsas_check_id(sassc, id) != 0) {
911 			mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
912 			    "Excluding target id %d\n", id);
913 			error = ENXIO;
914 			goto out;
915 		}
916 
917 		if (targ->handle != 0x0) {
918 			mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
919 			    "target id %d handle 0x%04x\n", id, targ->handle);
920 			error = ENXIO;
921 			goto out;
922 		}
923 	}
924 
925 	targ->devinfo = device_info;
926 	targ->devname = le32toh(config_page.DeviceName.High);
927 	targ->devname = (targ->devname << 32) |
928 	    le32toh(config_page.DeviceName.Low);
929 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
930 	targ->encl_slot = le16toh(config_page.Slot);
931 	targ->encl_level = config_page.EnclosureLevel;
932 	targ->connector_name[0] = config_page.ConnectorName[0];
933 	targ->connector_name[1] = config_page.ConnectorName[1];
934 	targ->connector_name[2] = config_page.ConnectorName[2];
935 	targ->connector_name[3] = config_page.ConnectorName[3];
936 	targ->handle = handle;
937 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
938 	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
939 	targ->parent_sasaddr = le64toh(parent_sas_address);
940 	targ->parent_devinfo = parent_devinfo;
941 	targ->tid = id;
942 	targ->linkrate = (linkrate>>4);
943 	targ->flags = 0;
944 	if (is_SATA_SSD) {
945 		targ->flags = MPR_TARGET_IS_SATA_SSD;
946 	}
947 	if ((le16toh(config_page.Flags) &
948 	    MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
949 	    (le16toh(config_page.Flags) &
950 	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
951 		targ->scsi_req_desc_type =
952 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
953 	}
954 	if (le16toh(config_page.Flags) &
955 	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
956 		targ->encl_level_valid = TRUE;
957 	}
958 	TAILQ_INIT(&targ->commands);
959 	TAILQ_INIT(&targ->timedout_commands);
960 	while (!SLIST_EMPTY(&targ->luns)) {
961 		lun = SLIST_FIRST(&targ->luns);
962 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
963 		kfree(lun, M_MPR);
964 	}
965 	SLIST_INIT(&targ->luns);
966 
967 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
968 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
969 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
970 	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
971 	    targ->handle, targ->encl_handle, targ->encl_slot);
972 	if (targ->encl_level_valid) {
973 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
974 		    "and connector name (%4s)\n", targ->encl_level,
975 		    targ->connector_name);
976 	}
977 #if 1 /* ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
978     (__FreeBSD_version < 902502) */
979 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
980 #endif
981 		mprsas_rescan_target(sc, targ);
982 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
983 
984 	/*
985 	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
986 	 * If so, send a Target Reset TM to the target that was just created.
987 	 * An Abort Task TM should be used instead of a Target Reset, but that
988 	 * would be much more difficult because targets have not been fully
989 	 * discovered yet, and LUN's haven't been setup.  So, just reset the
990 	 * target instead of the LUN.
991 	 */
992 	for (i = 1; i < sc->num_reqs; i++) {
993 		cm = &sc->commands[i];
994 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
995 			targ->timeouts++;
996 			cm->cm_state = MPR_CM_STATE_TIMEDOUT;
997 
998 			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
999 				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
1000 				    "Reset for stuck SATA identify command "
1001 				    "(cm = %p)\n", __func__, cm);
1002 				targ->tm->cm_targ = targ;
1003 				mprsas_send_reset(sc, targ->tm,
1004 				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
1005 			} else {
1006 				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
1007 				    "tm for Target Reset after SATA ID command "
1008 				    "timed out (cm %p)\n", cm);
1009 			}
1010 			/*
1011 			 * No need to check for more since the target is
1012 			 * already being reset.
1013 			 */
1014 			break;
1015 		}
1016 	}
1017 out:
1018 	/*
1019 	 * Free the commands that may not have been freed from the SATA ID call
1020 	 */
1021 	for (i = 1; i < sc->num_reqs; i++) {
1022 		cm = &sc->commands[i];
1023 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1024 			mpr_free_command(sc, cm);
1025 		}
1026 	}
1027 	mprsas_startup_decrement(sassc);
1028 	return (error);
1029 }
1030 
1031 int
1032 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
1033     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
1034 {
1035 	Mpi2SataPassthroughReply_t mpi_reply;
1036 	int i, rc, try_count;
1037 	u32 *bufferptr;
1038 	union _sata_sas_address hash_address;
1039 	struct _ata_identify_device_data ata_identify;
1040 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
1041 	u32 ioc_status;
1042 	u8 sas_status;
1043 
1044 	memset(&ata_identify, 0, sizeof(ata_identify));
1045 	memset(&mpi_reply, 0, sizeof(mpi_reply));
1046 	try_count = 0;
1047 	do {
1048 		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
1049 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
1050 		try_count++;
1051 		ioc_status = le16toh(mpi_reply.IOCStatus)
1052 		    & MPI2_IOCSTATUS_MASK;
1053 		sas_status = mpi_reply.SASStatus;
1054 		switch (ioc_status) {
1055 		case MPI2_IOCSTATUS_SUCCESS:
1056 			break;
1057 		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
1058 			/* No sense sleeping.  this error won't get better */
1059 			break;
1060 		default:
1061 			if (sc->spinup_wait_time > 0) {
1062 				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
1063 				    "after SATA ID error to wait for spinup\n",
1064 				    sc->spinup_wait_time);
1065 				lksleep(&sc->msleep_fake_chan, &sc->mpr_lock, 0,
1066 				    "mprid", sc->spinup_wait_time * hz);
1067 			}
1068 		}
1069 	} while (((rc && (rc != EWOULDBLOCK)) ||
1070 	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
1071 	    || sas_status) && (try_count < 5));
1072 
1073 	if (rc == 0 && !ioc_status && !sas_status) {
1074 		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
1075 		    "successfully for handle = 0x%x with try_count = %d\n",
1076 		    __func__, handle, try_count);
1077 	} else {
1078 		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
1079 		    __func__, handle);
1080 		return -1;
1081 	}
1082 	/* Copy & byteswap the 40 byte model number to a buffer */
1083 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
1084 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
1085 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
1086 	}
1087 	/* Copy & byteswap the 20 byte serial number to a buffer */
1088 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
1089 		buffer[MPT2SAS_MN_LEN + i] =
1090 		    ((u8 *)ata_identify.serial_number)[i + 1];
1091 		buffer[MPT2SAS_MN_LEN + i + 1] =
1092 		    ((u8 *)ata_identify.serial_number)[i];
1093 	}
1094 	bufferptr = (u32 *)buffer;
1095 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
1096 	 * so loop through the first 56 bytes (7*8),
1097 	 * and then add in the last dword.
1098 	 */
1099 	hash_address.word.low  = 0;
1100 	hash_address.word.high = 0;
1101 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
1102 		hash_address.word.low += *bufferptr;
1103 		bufferptr++;
1104 		hash_address.word.high += *bufferptr;
1105 		bufferptr++;
1106 	}
1107 	/* Add the last dword */
1108 	hash_address.word.low += *bufferptr;
1109 	/* Make sure the hash doesn't start with 5, because it could clash
1110 	 * with a SAS address. Change 5 to a D.
1111 	 */
1112 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
1113 		hash_address.word.high |= 0x00000080;
1114 	*sas_address = (u64)hash_address.wwid[0] << 56 |
1115 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
1116 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
1117 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
1118 	    (u64)hash_address.wwid[7];
1119 	if (ata_identify.rotational_speed == 1) {
1120 		*is_SATA_SSD = 1;
1121 	}
1122 
1123 	return 0;
1124 }
1125 
1126 static int
1127 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
1128     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
1129 {
1130 	Mpi2SataPassthroughRequest_t *mpi_request;
1131 	Mpi2SataPassthroughReply_t *reply = NULL; /* XXX swildner: warning fix */
1132 	struct mpr_command *cm;
1133 	char *buffer;
1134 	int error = 0;
1135 
1136 	buffer = kmalloc( sz, M_MPR, M_NOWAIT | M_ZERO);
1137 	if (!buffer)
1138 		return ENOMEM;
1139 
1140 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1141 		kfree(buffer, M_MPR);
1142 		return (EBUSY);
1143 	}
1144 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
1145 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
1146 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
1147 	mpi_request->VF_ID = 0;
1148 	mpi_request->DevHandle = htole16(handle);
1149 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1150 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1151 	mpi_request->DataLength = htole32(sz);
1152 	mpi_request->CommandFIS[0] = 0x27;
1153 	mpi_request->CommandFIS[1] = 0x80;
1154 	mpi_request->CommandFIS[2] =  (devinfo &
1155 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1156 	cm->cm_sge = &mpi_request->SGL;
1157 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1158 	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1159 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1160 	cm->cm_data = buffer;
1161 	cm->cm_length = htole32(sz);
1162 
1163 	/*
1164 	 * Start a timeout counter specifically for the SATA ID command. This
1165 	 * is used to fix a problem where the FW does not send a reply sometimes
1166 	 * when a bad disk is in the topology. So, this is used to timeout the
1167 	 * command so that processing can continue normally.
1168 	 */
1169 	mpr_dprint(sc, MPR_XINFO, "%s start timeout counter for SATA ID "
1170 	    "command\n", __func__);
1171 	callout_reset(&cm->cm_callout, MPR_ATA_ID_TIMEOUT * hz,
1172 	    mprsas_ata_id_timeout, cm);
1173 	error = mpr_wait_command(sc, &cm, 60, CAN_SLEEP);
1174 	mpr_dprint(sc, MPR_XINFO, "%s stop timeout counter for SATA ID "
1175 	    "command\n", __func__);
1176 	/* XXX KDM need to fix the case where this command is destroyed */
1177 	callout_stop(&cm->cm_callout);
1178 
1179 	if (cm != NULL)
1180 		reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1181 	if (error || (reply == NULL)) {
1182 		/* FIXME */
1183 		/*
1184 		 * If the request returns an error then we need to do a diag
1185 		 * reset
1186 		 */
1187 		mpr_dprint(sc, MPR_INFO|MPR_FAULT|MPR_MAPPING,
1188 		    "Request for SATA PASSTHROUGH page completed with error %d",
1189 		    error);
1190 		error = ENXIO;
1191 		goto out;
1192 	}
1193 	bcopy(buffer, id_buffer, sz);
1194 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1195 	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1196 	    MPI2_IOCSTATUS_SUCCESS) {
1197 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
1198 		    "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
1199 		    handle, reply->IOCStatus);
1200 		error = ENXIO;
1201 		goto out;
1202 	}
1203 out:
1204 	/*
1205 	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1206 	 * it.  The command will be freed after sending a target reset TM. If
1207 	 * the command did timeout, use EWOULDBLOCK.
1208 	 */
1209 	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0)
1210 		mpr_free_command(sc, cm);
1211 	else if (error == 0)
1212 		error = EWOULDBLOCK;
1213 	cm->cm_data = NULL;
1214 	kfree(buffer, M_MPR);
1215 	return (error);
1216 }
1217 
1218 static void
1219 mprsas_ata_id_timeout(void *data)
1220 {
1221 	struct mpr_softc *sc;
1222 	struct mpr_command *cm;
1223 
1224 	cm = (struct mpr_command *)data;
1225 	sc = cm->cm_sc;
1226 	KKASSERT(lockowned(&sc->mpr_lock));
1227 
1228 	mpr_dprint(sc, MPR_INFO, "%s checking ATA ID command %p sc %p\n",
1229 	    __func__, cm, sc);
1230 	if ((callout_pending(&cm->cm_callout)) ||
1231 	    (!callout_active(&cm->cm_callout))) {
1232 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1233 		    __func__);
1234 		return;
1235 	}
1236 	callout_deactivate(&cm->cm_callout);
1237 
1238 	/*
1239 	 * Run the interrupt handler to make sure it's not pending.  This
1240 	 * isn't perfect because the command could have already completed
1241 	 * and been re-used, though this is unlikely.
1242 	 */
1243 	mpr_intr_locked(sc);
1244 	if (cm->cm_state == MPR_CM_STATE_FREE) {
1245 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1246 		    __func__);
1247 		return;
1248 	}
1249 
1250 	mpr_dprint(sc, MPR_INFO, "ATA ID command timeout cm %p\n", cm);
1251 
1252 	/*
1253 	 * Send wakeup() to the sleeping thread that issued this ATA ID command.
1254 	 * wakeup() will cause msleep to return a 0 (not EWOULDBLOCK), and this
1255 	 * will keep reinit() from being called. This way, an Abort Task TM can
1256 	 * be issued so that the timed out command can be cleared. The Abort
1257 	 * Task cannot be sent from here because the driver has not completed
1258 	 * setting up targets.  Instead, the command is flagged so that special
1259 	 * handling will be used to send the abort.
1260 	 */
1261 	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1262 	wakeup(cm);
1263 }
1264 
1265 static int
1266 mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
1267 {
1268 	char devstring[80];
1269 	struct mprsas_softc *sassc;
1270 	struct mprsas_target *targ;
1271 	Mpi2ConfigReply_t mpi_reply;
1272 	Mpi26PCIeDevicePage0_t config_page;
1273 	Mpi26PCIeDevicePage2_t config_page2;
1274 	uint64_t pcie_wwid, parent_wwid = 0;
1275 	u32 device_info, parent_devinfo = 0;
1276 	unsigned int id;
1277 	int error = 0;
1278 	struct mprsas_lun *lun;
1279 
1280 	sassc = sc->sassc;
1281 	mprsas_startup_increment(sassc);
1282 	if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
1283 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1284 		kprintf("%s: error reading PCIe device page0\n", __func__);
1285 		error = ENXIO;
1286 		goto out;
1287 	}
1288 
1289 	device_info = le32toh(config_page.DeviceInfo);
1290 
1291 	if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
1292 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
1293 		Mpi2ConfigReply_t tmp_mpi_reply;
1294 		Mpi26PCIeDevicePage0_t parent_config_page;
1295 
1296 		if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
1297 		     &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1298 		     le16toh(config_page.ParentDevHandle)))) {
1299 			kprintf("%s: error reading PCIe device %#x page0\n",
1300 			    __func__, le16toh(config_page.ParentDevHandle));
1301 		} else {
1302 			parent_wwid = parent_config_page.WWID.High;
1303 			parent_wwid = (parent_wwid << 32) |
1304 			    parent_config_page.WWID.Low;
1305 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
1306 		}
1307 	}
1308 	/* TODO Check proper endianness */
1309 	pcie_wwid = config_page.WWID.High;
1310 	pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
1311 	mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
1312 	    pcie_wwid);
1313 
1314 	if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
1315 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1316 		kprintf("%s: error reading PCIe device page2\n", __func__);
1317 		error = ENXIO;
1318 		goto out;
1319 	}
1320 
1321 	id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
1322 	if (id == MPR_MAP_BAD_ID) {
1323 		mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
1324 		    "Could not get ID for device with handle 0x%04x\n",
1325 		    __FILE__, __LINE__, __func__, handle);
1326 		error = ENXIO;
1327 		goto out;
1328 	}
1329 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
1330 	    __func__, id);
1331 
1332 	if (mprsas_check_id(sassc, id) != 0) {
1333 		mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
1334 		    "Excluding target id %d\n", id);
1335 		error = ENXIO;
1336 		goto out;
1337 	}
1338 
1339 	mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
1340 	    pcie_wwid);
1341 	targ = &sassc->targets[id];
1342 	targ->devinfo = device_info;
1343 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
1344 	targ->encl_slot = le16toh(config_page.Slot);
1345 	targ->encl_level = config_page.EnclosureLevel;
1346 	targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
1347 	targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
1348 	targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
1349 	targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
1350 	targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
1351 	targ->MDTS = config_page2.MaximumDataTransferSize;
1352 	/*
1353 	 * Assume always TRUE for encl_level_valid because there is no valid
1354 	 * flag for PCIe.
1355 	 */
1356 	targ->encl_level_valid = TRUE;
1357 	targ->handle = handle;
1358 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
1359 	targ->sasaddr = mpr_to_u64(&config_page.WWID);
1360 	targ->parent_sasaddr = le64toh(parent_wwid);
1361 	targ->parent_devinfo = parent_devinfo;
1362 	targ->tid = id;
1363 	targ->linkrate = linkrate;
1364 	targ->flags = 0;
1365 	if ((le16toh(config_page.Flags) &
1366 	    MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) &&
1367 	    (le16toh(config_page.Flags) &
1368 	    MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
1369 		targ->scsi_req_desc_type =
1370 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
1371 	}
1372 	TAILQ_INIT(&targ->commands);
1373 	TAILQ_INIT(&targ->timedout_commands);
1374 	while (!SLIST_EMPTY(&targ->luns)) {
1375 		lun = SLIST_FIRST(&targ->luns);
1376 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1377 		kfree(lun, M_MPR);
1378 	}
1379 	SLIST_INIT(&targ->luns);
1380 
1381 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
1382 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
1383 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
1384 	    mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
1385 	    targ->handle, targ->encl_handle, targ->encl_slot);
1386 	if (targ->encl_level_valid) {
1387 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
1388 		    "and connector name (%4s)\n", targ->encl_level,
1389 		    targ->connector_name);
1390 	}
1391 #if 1 /* ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1392     (__FreeBSD_version < 902502) */
1393 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1394 #endif
1395 		mprsas_rescan_target(sc, targ);
1396 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1397 
1398 out:
1399 	mprsas_startup_decrement(sassc);
1400 	return (error);
1401 }
1402 
1403 static int
1404 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1405 {
1406 	struct mprsas_softc *sassc;
1407 	struct mprsas_target *targ;
1408 	u64 wwid;
1409 	unsigned int id;
1410 	int error = 0;
1411 	struct mprsas_lun *lun;
1412 
1413 	sassc = sc->sassc;
1414 	mprsas_startup_increment(sassc);
1415 	/* wwid is endian safe */
1416 	mpr_config_get_volume_wwid(sc, handle, &wwid);
1417 	if (!wwid) {
1418 		kprintf("%s: invalid WWID; cannot add volume to mapping table\n",
1419 		    __func__);
1420 		error = ENXIO;
1421 		goto out;
1422 	}
1423 
1424 	id = mpr_mapping_get_raid_tid(sc, wwid, handle);
1425 	if (id == MPR_MAP_BAD_ID) {
1426 		kprintf("%s: could not get ID for volume with handle 0x%04x and "
1427 		    "WWID 0x%016llx\n", __func__, handle,
1428 		    (unsigned long long)wwid);
1429 		error = ENXIO;
1430 		goto out;
1431 	}
1432 
1433 	targ = &sassc->targets[id];
1434 	targ->tid = id;
1435 	targ->handle = handle;
1436 	targ->devname = wwid;
1437 	TAILQ_INIT(&targ->commands);
1438 	TAILQ_INIT(&targ->timedout_commands);
1439 	while (!SLIST_EMPTY(&targ->luns)) {
1440 		lun = SLIST_FIRST(&targ->luns);
1441 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1442 		kfree(lun, M_MPR);
1443 	}
1444 	SLIST_INIT(&targ->luns);
1445 #if 1 /* ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1446     (__FreeBSD_version < 902502) */
1447 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1448 #endif
1449 		mprsas_rescan_target(sc, targ);
1450 	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1451 	    targ->tid, wwid);
1452 out:
1453 	mprsas_startup_decrement(sassc);
1454 	return (error);
1455 }
1456 
1457 /**
1458  * mprsas_SSU_to_SATA_devices
1459  * @sc: per adapter object
1460  *
1461  * Looks through the target list and issues a StartStopUnit SCSI command to each
1462  * SATA direct-access device.  This helps to ensure that data corruption is
1463  * avoided when the system is being shut down.  This must be called after the IR
1464  * System Shutdown RAID Action is sent if in IR mode.
1465  *
1466  * Return nothing.
1467  */
1468 static void
1469 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc)
1470 {
1471 	struct mprsas_softc *sassc = sc->sassc;
1472 	union ccb *ccb;
1473 	path_id_t pathid = cam_sim_path(sassc->sim);
1474 	target_id_t targetid;
1475 	struct mprsas_target *target;
1476 	char path_str[64];
1477 	struct timeval cur_time, start_time;
1478 
1479 	mpr_lock(sc);
1480 
1481 	/*
1482 	 * For each target, issue a StartStopUnit command to stop the device.
1483 	 */
1484 	sc->SSU_started = TRUE;
1485 	sc->SSU_refcount = 0;
1486 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1487 		target = &sassc->targets[targetid];
1488 		if (target->handle == 0x0) {
1489 			continue;
1490 		}
1491 
1492 		/*
1493 		 * The stop_at_shutdown flag will be set if this device is
1494 		 * a SATA direct-access end device.
1495 		 */
1496 		if (target->stop_at_shutdown) {
1497 			ccb = xpt_alloc_ccb();
1498 			if (ccb == NULL) {
1499 				mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
1500 				    "to stop unit.\n");
1501 				return;
1502 			}
1503 
1504 			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1505 			    pathid, targetid, CAM_LUN_WILDCARD) !=
1506 			    CAM_REQ_CMP) {
1507 				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1508 				    "path to stop unit.\n");
1509 				xpt_free_ccb(&ccb->ccb_h);
1510 				return;
1511 			}
1512 			xpt_path_string(ccb->ccb_h.path, path_str,
1513 			    sizeof(path_str));
1514 
1515 			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1516 			    "handle %d\n", path_str, target->handle);
1517 
1518 			/*
1519 			 * Issue a START STOP UNIT command for the target.
1520 			 * Increment the SSU counter to be used to count the
1521 			 * number of required replies.
1522 			 */
1523 			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1524 			sc->SSU_refcount++;
1525 			ccb->ccb_h.target_id =
1526 			    xpt_path_target_id(ccb->ccb_h.path);
1527 			ccb->ccb_h.ppriv_ptr1 = sassc;
1528 			scsi_start_stop(&ccb->csio,
1529 			    /*retries*/0,
1530 			    mprsas_stop_unit_done,
1531 			    MSG_SIMPLE_Q_TAG,
1532 			    /*start*/FALSE,
1533 			    /*load/eject*/0,
1534 			    /*immediate*/FALSE,
1535 			    MPR_SENSE_LEN,
1536 			    /*timeout*/10000);
1537 			xpt_action(ccb);
1538 		}
1539 	}
1540 
1541 	mpr_unlock(sc);
1542 
1543 	/*
1544 	 * Wait until all of the SSU commands have completed or time has
1545 	 * expired (60 seconds).  Pause for 100ms each time through.  If any
1546 	 * command times out, the target will be reset in the SCSI command
1547 	 * timeout routine.
1548 	 */
1549 	getmicrotime(&start_time);
1550 	while (sc->SSU_refcount) {
1551 		tsleep(mprsas_SSU_to_SATA_devices, 0, "mprwait", hz/10);
1552 
1553 		getmicrotime(&cur_time);
1554 		if ((cur_time.tv_sec - start_time.tv_sec) > 60) {
1555 			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1556 			    "for SSU commands to complete.\n");
1557 			break;
1558 		}
1559 	}
1560 }
1561 
1562 static void
1563 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1564 {
1565 	struct mprsas_softc *sassc;
1566 	char path_str[64];
1567 
1568 	if (done_ccb == NULL)
1569 		return;
1570 
1571 	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1572 
1573 	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1574 	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1575 	    path_str);
1576 
1577 	/*
1578 	 * Nothing more to do except free the CCB and path.  If the command
1579 	 * timed out, an abort reset, then target reset will be issued during
1580 	 * the SCSI Command process.
1581 	 */
1582 	xpt_free_path(done_ccb->ccb_h.path);
1583 	xpt_free_ccb(&done_ccb->ccb_h);
1584 }
1585 
1586 /**
1587  * mprsas_ir_shutdown - IR shutdown notification
1588  * @sc: per adapter object
1589  *
1590  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1591  * the host system is shutting down.
1592  *
1593  * Return nothing.
1594  */
1595 void
1596 mprsas_ir_shutdown(struct mpr_softc *sc)
1597 {
1598 	u16 volume_mapping_flags;
1599 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1600 	struct dev_mapping_table *mt_entry;
1601 	u32 start_idx, end_idx;
1602 	unsigned int id, found_volume = 0;
1603 	struct mpr_command *cm;
1604 	Mpi2RaidActionRequest_t	*action;
1605 	target_id_t targetid;
1606 	struct mprsas_target *target;
1607 
1608 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1609 
1610 	/* is IR firmware build loaded? */
1611 	if (!sc->ir_firmware)
1612 		goto out;
1613 
1614 	/* are there any volumes?  Look at IR target IDs. */
1615 	// TODO-later, this should be looked up in the RAID config structure
1616 	// when it is implemented.
1617 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1618 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1619 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1620 		start_idx = 0;
1621 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1622 			start_idx = 1;
1623 	} else
1624 		start_idx = sc->max_devices - sc->max_volumes;
1625 	end_idx = start_idx + sc->max_volumes - 1;
1626 
1627 	for (id = start_idx; id < end_idx; id++) {
1628 		mt_entry = &sc->mapping_table[id];
1629 		if ((mt_entry->physical_id != 0) &&
1630 		    (mt_entry->missing_count == 0)) {
1631 			found_volume = 1;
1632 			break;
1633 		}
1634 	}
1635 
1636 	if (!found_volume)
1637 		goto out;
1638 
1639 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1640 		kprintf("%s: command alloc failed\n", __func__);
1641 		goto out;
1642 	}
1643 
1644 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1645 	action->Function = MPI2_FUNCTION_RAID_ACTION;
1646 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1647 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1648 	mpr_lock(sc);
1649 	mpr_wait_command(sc, &cm, 5, CAN_SLEEP);
1650 	mpr_unlock(sc);
1651 
1652 	/*
1653 	 * Don't check for reply, just leave.
1654 	 */
1655 	if (cm)
1656 		mpr_free_command(sc, cm);
1657 
1658 out:
1659 	/*
1660 	 * All of the targets must have the correct value set for
1661 	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1662 	 *
1663 	 * The possible values for the 'enable_ssu' variable are:
1664 	 * 0: disable to SSD and HDD
1665 	 * 1: disable only to HDD (default)
1666 	 * 2: disable only to SSD
1667 	 * 3: enable to SSD and HDD
1668 	 * anything else will default to 1.
1669 	 */
1670 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1671 		target = &sc->sassc->targets[targetid];
1672 		if (target->handle == 0x0) {
1673 			continue;
1674 		}
1675 
1676 		if (target->supports_SSU) {
1677 			switch (sc->enable_ssu) {
1678 			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1679 				target->stop_at_shutdown = FALSE;
1680 				break;
1681 			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1682 				target->stop_at_shutdown = TRUE;
1683 				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1684 					target->stop_at_shutdown = FALSE;
1685 				}
1686 				break;
1687 			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1688 				target->stop_at_shutdown = TRUE;
1689 				break;
1690 			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1691 			default:
1692 				target->stop_at_shutdown = TRUE;
1693 				if ((target->flags &
1694 				    MPR_TARGET_IS_SATA_SSD) == 0) {
1695 					target->stop_at_shutdown = FALSE;
1696 				}
1697 				break;
1698 			}
1699 		}
1700 	}
1701 	mprsas_SSU_to_SATA_devices(sc);
1702 }
1703