xref: /freebsd/sys/dev/mpr/mpr_sas_lsi.c (revision 190cef3d)
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 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 /* Communications core for Avago Technologies (LSI) MPT3 */
34 
35 /* TODO Move headers to mprvar */
36 #include <sys/types.h>
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/selinfo.h>
41 #include <sys/module.h>
42 #include <sys/bus.h>
43 #include <sys/conf.h>
44 #include <sys/bio.h>
45 #include <sys/malloc.h>
46 #include <sys/uio.h>
47 #include <sys/sysctl.h>
48 #include <sys/endian.h>
49 #include <sys/proc.h>
50 #include <sys/queue.h>
51 #include <sys/kthread.h>
52 #include <sys/taskqueue.h>
53 #include <sys/sbuf.h>
54 #include <sys/reboot.h>
55 
56 #include <machine/bus.h>
57 #include <machine/resource.h>
58 #include <sys/rman.h>
59 
60 #include <machine/stdarg.h>
61 
62 #include <cam/cam.h>
63 #include <cam/cam_ccb.h>
64 #include <cam/cam_debug.h>
65 #include <cam/cam_sim.h>
66 #include <cam/cam_xpt_sim.h>
67 #include <cam/cam_xpt_periph.h>
68 #include <cam/cam_periph.h>
69 #include <cam/scsi/scsi_all.h>
70 #include <cam/scsi/scsi_message.h>
71 
72 #include <dev/mpr/mpi/mpi2_type.h>
73 #include <dev/mpr/mpi/mpi2.h>
74 #include <dev/mpr/mpi/mpi2_ioc.h>
75 #include <dev/mpr/mpi/mpi2_sas.h>
76 #include <dev/mpr/mpi/mpi2_pci.h>
77 #include <dev/mpr/mpi/mpi2_cnfg.h>
78 #include <dev/mpr/mpi/mpi2_init.h>
79 #include <dev/mpr/mpi/mpi2_raid.h>
80 #include <dev/mpr/mpi/mpi2_tool.h>
81 #include <dev/mpr/mpr_ioctl.h>
82 #include <dev/mpr/mprvar.h>
83 #include <dev/mpr/mpr_table.h>
84 #include <dev/mpr/mpr_sas.h>
85 
86 /* For Hashed SAS Address creation for SATA Drives */
87 #define MPT2SAS_SN_LEN 20
88 #define MPT2SAS_MN_LEN 40
89 
90 struct mpr_fw_event_work {
91 	u16			event;
92 	void			*event_data;
93 	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
94 };
95 
96 union _sata_sas_address {
97 	u8 wwid[8];
98 	struct {
99 		u32 high;
100 		u32 low;
101 	} word;
102 };
103 
104 /*
105  * define the IDENTIFY DEVICE structure
106  */
107 struct _ata_identify_device_data {
108 	u16 reserved1[10];	/* 0-9 */
109 	u16 serial_number[10];	/* 10-19 */
110 	u16 reserved2[7];	/* 20-26 */
111 	u16 model_number[20];	/* 27-46*/
112 	u16 reserved3[170];	/* 47-216 */
113 	u16 rotational_speed;	/* 217 */
114 	u16 reserved4[38];	/* 218-255 */
115 };
116 static u32 event_count;
117 static void mprsas_fw_work(struct mpr_softc *sc,
118     struct mpr_fw_event_work *fw_event);
119 static void mprsas_fw_event_free(struct mpr_softc *,
120     struct mpr_fw_event_work *);
121 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
122 static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
123     u8 linkrate);
124 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
125     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
126     u32 devinfo);
127 static void mprsas_ata_id_timeout(void *data);
128 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
129     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
130 static int mprsas_volume_add(struct mpr_softc *sc,
131     u16 handle);
132 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto);
133 static void mprsas_stop_unit_done(struct cam_periph *periph,
134     union ccb *done_ccb);
135 
136 void
137 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
138     MPI2_EVENT_NOTIFICATION_REPLY *event)
139 {
140 	struct mpr_fw_event_work *fw_event;
141 	u16 sz;
142 
143 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
144 	MPR_DPRINT_EVENT(sc, sas, event);
145 	mprsas_record_event(sc, event);
146 
147 	fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
148 	     M_ZERO|M_NOWAIT);
149 	if (!fw_event) {
150 		printf("%s: allocate failed for fw_event\n", __func__);
151 		return;
152 	}
153 	sz = le16toh(event->EventDataLength) * 4;
154 	fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
155 	if (!fw_event->event_data) {
156 		printf("%s: allocate failed for event_data\n", __func__);
157 		free(fw_event, M_MPR);
158 		return;
159 	}
160 
161 	bcopy(event->EventData, fw_event->event_data, sz);
162 	fw_event->event = event->Event;
163 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
164 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
165 	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
166 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
167 	    sc->track_mapping_events)
168 		sc->pending_map_events++;
169 
170 	/*
171 	 * When wait_for_port_enable flag is set, make sure that all the events
172 	 * are processed. Increment the startup_refcount and decrement it after
173 	 * events are processed.
174 	 */
175 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
176 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
177 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
178 	    sc->wait_for_port_enable)
179 		mprsas_startup_increment(sc->sassc);
180 
181 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
182 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
183 }
184 
185 static void
186 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
187 {
188 
189 	free(fw_event->event_data, M_MPR);
190 	free(fw_event, M_MPR);
191 }
192 
193 /**
194  * _mpr_fw_work - delayed task for processing firmware events
195  * @sc: per adapter object
196  * @fw_event: The fw_event_work object
197  * Context: user.
198  *
199  * Return nothing.
200  */
201 static void
202 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
203 {
204 	struct mprsas_softc *sassc;
205 	sassc = sc->sassc;
206 
207 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
208 	    event_count++, __func__, fw_event->event);
209 	switch (fw_event->event) {
210 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
211 	{
212 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
213 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
214 		uint8_t i;
215 
216 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
217 		    fw_event->event_data;
218 
219 		mpr_mapping_topology_change_event(sc, fw_event->event_data);
220 
221 		for (i = 0; i < data->NumEntries; i++) {
222 			phy = &data->PHY[i];
223 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
224 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
225 				if (mprsas_add_device(sc,
226 				    le16toh(phy->AttachedDevHandle),
227 				    phy->LinkRate)) {
228 					mpr_dprint(sc, MPR_ERROR, "%s: "
229 					    "failed to add device with handle "
230 					    "0x%x\n", __func__,
231 					    le16toh(phy->AttachedDevHandle));
232 					mprsas_prepare_remove(sassc, le16toh(
233 					    phy->AttachedDevHandle));
234 				}
235 				break;
236 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
237 				mprsas_prepare_remove(sassc, le16toh(
238 				    phy->AttachedDevHandle));
239 				break;
240 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
241 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
242 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
243 			default:
244 				break;
245 			}
246 		}
247 		/*
248 		 * refcount was incremented for this event in
249 		 * mprsas_evt_handler.  Decrement it here because the event has
250 		 * been processed.
251 		 */
252 		mprsas_startup_decrement(sassc);
253 		break;
254 	}
255 	case MPI2_EVENT_SAS_DISCOVERY:
256 	{
257 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
258 
259 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
260 
261 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
262 			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
263 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
264 			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
265 			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
266 			mprsas_discovery_end(sassc);
267 		}
268 		break;
269 	}
270 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
271 	{
272 		Mpi2EventDataSasEnclDevStatusChange_t *data;
273 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
274 		    fw_event->event_data;
275 		mpr_mapping_enclosure_dev_status_change_event(sc,
276 		    fw_event->event_data);
277 		break;
278 	}
279 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
280 	{
281 		Mpi2EventIrConfigElement_t *element;
282 		int i;
283 		u8 foreign_config, reason;
284 		u16 elementType;
285 		Mpi2EventDataIrConfigChangeList_t *event_data;
286 		struct mprsas_target *targ;
287 		unsigned int id;
288 
289 		event_data = fw_event->event_data;
290 		foreign_config = (le32toh(event_data->Flags) &
291 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
292 
293 		element =
294 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
295 		id = mpr_mapping_get_raid_tid_from_handle(sc,
296 		    element->VolDevHandle);
297 
298 		mpr_mapping_ir_config_change_event(sc, event_data);
299 		for (i = 0; i < event_data->NumElements; i++, element++) {
300 			reason = element->ReasonCode;
301 			elementType = le16toh(element->ElementFlags) &
302 			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
303 			/*
304 			 * check for element type of Phys Disk or Hot Spare
305 			 */
306 			if ((elementType !=
307 			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
308 			    && (elementType !=
309 			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
310 				// do next element
311 				goto skip_fp_send;
312 
313 			/*
314 			 * check for reason of Hide, Unhide, PD Created, or PD
315 			 * Deleted
316 			 */
317 			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
318 			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
319 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
320 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
321 				goto skip_fp_send;
322 
323 			// check for a reason of Hide or PD Created
324 			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
325 			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
326 			{
327 				// build RAID Action message
328 				Mpi2RaidActionRequest_t	*action;
329 				Mpi2RaidActionReply_t *reply = NULL;
330 				struct mpr_command *cm;
331 				int error = 0;
332 				if ((cm = mpr_alloc_command(sc)) == NULL) {
333 					printf("%s: command alloc failed\n",
334 					    __func__);
335 					return;
336 				}
337 
338 				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
339 				    "from "
340 				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
341 				    ":\n");
342 				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
343 				action->Function = MPI2_FUNCTION_RAID_ACTION;
344 				action->Action =
345 				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
346 				action->PhysDiskNum = element->PhysDiskNum;
347 				cm->cm_desc.Default.RequestFlags =
348 				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
349 				error = mpr_request_polled(sc, &cm);
350 				if (cm != NULL)
351 					reply = (Mpi2RaidActionReply_t *)
352 					    cm->cm_reply;
353 				if (error || (reply == NULL)) {
354 					/* FIXME */
355 					/*
356 					 * If the poll returns error then we
357 					 * need to do diag reset
358 					 */
359 					printf("%s: poll for page completed "
360 					    "with error %d", __func__, error);
361 				}
362 				if (reply && (le16toh(reply->IOCStatus) &
363 				    MPI2_IOCSTATUS_MASK) !=
364 				    MPI2_IOCSTATUS_SUCCESS) {
365 					mpr_dprint(sc, MPR_ERROR, "%s: error "
366 					    "sending RaidActionPage; "
367 					    "iocstatus = 0x%x\n", __func__,
368 					    le16toh(reply->IOCStatus));
369 				}
370 
371 				if (cm)
372 					mpr_free_command(sc, cm);
373 			}
374 skip_fp_send:
375 			mpr_dprint(sc, MPR_EVENT, "Received "
376 			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
377 			    "code %x:\n", element->ReasonCode);
378 			switch (element->ReasonCode) {
379 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
380 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
381 				if (!foreign_config) {
382 					if (mprsas_volume_add(sc,
383 					    le16toh(element->VolDevHandle))) {
384 						printf("%s: failed to add RAID "
385 						    "volume with handle 0x%x\n",
386 						    __func__, le16toh(element->
387 						    VolDevHandle));
388 					}
389 				}
390 				break;
391 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
392 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
393 				/*
394 				 * Rescan after volume is deleted or removed.
395 				 */
396 				if (!foreign_config) {
397 					if (id == MPR_MAP_BAD_ID) {
398 						printf("%s: could not get ID "
399 						    "for volume with handle "
400 						    "0x%04x\n", __func__,
401 						    le16toh(element->
402 						    VolDevHandle));
403 						break;
404 					}
405 
406 					targ = &sassc->targets[id];
407 					targ->handle = 0x0;
408 					targ->encl_slot = 0x0;
409 					targ->encl_handle = 0x0;
410 					targ->encl_level_valid = 0x0;
411 					targ->encl_level = 0x0;
412 					targ->connector_name[0] = ' ';
413 					targ->connector_name[1] = ' ';
414 					targ->connector_name[2] = ' ';
415 					targ->connector_name[3] = ' ';
416 					targ->exp_dev_handle = 0x0;
417 					targ->phy_num = 0x0;
418 					targ->linkrate = 0x0;
419 					mprsas_rescan_target(sc, targ);
420 					printf("RAID target id 0x%x removed\n",
421 					    targ->tid);
422 				}
423 				break;
424 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
425 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
426 				/*
427 				 * Phys Disk of a volume has been created.  Hide
428 				 * it from the OS.
429 				 */
430 				targ = mprsas_find_target_by_handle(sassc, 0,
431 				    element->PhysDiskDevHandle);
432 				if (targ == NULL)
433 					break;
434 				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
435 				mprsas_rescan_target(sc, targ);
436 				break;
437 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
438 				/*
439 				 * Phys Disk of a volume has been deleted.
440 				 * Expose it to the OS.
441 				 */
442 				if (mprsas_add_device(sc,
443 				    le16toh(element->PhysDiskDevHandle), 0)) {
444 					printf("%s: failed to add device with "
445 					    "handle 0x%x\n", __func__,
446 					    le16toh(element->
447 					    PhysDiskDevHandle));
448 					mprsas_prepare_remove(sassc,
449 					    le16toh(element->
450 					    PhysDiskDevHandle));
451 				}
452 				break;
453 			}
454 		}
455 		/*
456 		 * refcount was incremented for this event in
457 		 * mprsas_evt_handler.  Decrement it here because the event has
458 		 * been processed.
459 		 */
460 		mprsas_startup_decrement(sassc);
461 		break;
462 	}
463 	case MPI2_EVENT_IR_VOLUME:
464 	{
465 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
466 
467 		/*
468 		 * Informational only.
469 		 */
470 		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
471 		switch (event_data->ReasonCode) {
472 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
473   			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
474   			    "changed from 0x%x to 0x%x for Volome with "
475  			    "handle 0x%x", le32toh(event_data->PreviousValue),
476  			    le32toh(event_data->NewValue),
477  			    le16toh(event_data->VolDevHandle));
478 			break;
479 		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
480   			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
481   			    "changed from 0x%x to 0x%x for Volome with "
482  			    "handle 0x%x", le32toh(event_data->PreviousValue),
483  			    le32toh(event_data->NewValue),
484  			    le16toh(event_data->VolDevHandle));
485 			break;
486 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
487   			mpr_dprint(sc, MPR_EVENT, "   Volume State "
488   			    "changed from 0x%x to 0x%x for Volome with "
489  			    "handle 0x%x", le32toh(event_data->PreviousValue),
490  			    le32toh(event_data->NewValue),
491  			    le16toh(event_data->VolDevHandle));
492 				u32 state;
493 				struct mprsas_target *targ;
494 				state = le32toh(event_data->NewValue);
495 				switch (state) {
496 				case MPI2_RAID_VOL_STATE_MISSING:
497 				case MPI2_RAID_VOL_STATE_FAILED:
498 					mprsas_prepare_volume_remove(sassc,
499 					    event_data->VolDevHandle);
500 					break;
501 
502 				case MPI2_RAID_VOL_STATE_ONLINE:
503 				case MPI2_RAID_VOL_STATE_DEGRADED:
504 				case MPI2_RAID_VOL_STATE_OPTIMAL:
505 					targ =
506 					    mprsas_find_target_by_handle(sassc,
507 					    0, event_data->VolDevHandle);
508 					if (targ) {
509 						printf("%s %d: Volume handle "
510 						    "0x%x is already added \n",
511 						    __func__, __LINE__,
512 						    event_data->VolDevHandle);
513 						break;
514 					}
515 					if (mprsas_volume_add(sc,
516 					    le16toh(event_data->
517 					    VolDevHandle))) {
518 						printf("%s: failed to add RAID "
519 						    "volume with handle 0x%x\n",
520 						    __func__, le16toh(
521 						    event_data->VolDevHandle));
522 					}
523 					break;
524 				default:
525 					break;
526 				}
527 			break;
528 		default:
529 			break;
530 		}
531 		break;
532 	}
533 	case MPI2_EVENT_IR_PHYSICAL_DISK:
534 	{
535 		Mpi2EventDataIrPhysicalDisk_t *event_data =
536 		    fw_event->event_data;
537 		struct mprsas_target *targ;
538 
539 		/*
540 		 * Informational only.
541 		 */
542 		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
543 		switch (event_data->ReasonCode) {
544 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
545   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
546   			    "changed from 0x%x to 0x%x for Phys Disk Number "
547   			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
548  			    "%d", le32toh(event_data->PreviousValue),
549  			    le32toh(event_data->NewValue),
550 			    event_data->PhysDiskNum,
551  			    le16toh(event_data->PhysDiskDevHandle),
552  			    le16toh(event_data->EnclosureHandle),
553 			    le16toh(event_data->Slot));
554 			break;
555 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
556   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
557   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
558   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
559  			    le32toh(event_data->PreviousValue),
560  			    le32toh(event_data->NewValue),
561 			    event_data->PhysDiskNum,
562  			    le16toh(event_data->PhysDiskDevHandle),
563  			    le16toh(event_data->EnclosureHandle),
564 			    le16toh(event_data->Slot));
565 			break;
566 		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
567   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
568   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
569   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
570  			    le32toh(event_data->PreviousValue),
571  			    le32toh(event_data->NewValue),
572 			    event_data->PhysDiskNum,
573  			    le16toh(event_data->PhysDiskDevHandle),
574  			    le16toh(event_data->EnclosureHandle),
575 			    le16toh(event_data->Slot));
576 			switch (event_data->NewValue) {
577 				case MPI2_RAID_PD_STATE_ONLINE:
578 				case MPI2_RAID_PD_STATE_DEGRADED:
579 				case MPI2_RAID_PD_STATE_REBUILDING:
580 				case MPI2_RAID_PD_STATE_OPTIMAL:
581 				case MPI2_RAID_PD_STATE_HOT_SPARE:
582 					targ = mprsas_find_target_by_handle(
583 					    sassc, 0,
584 					    event_data->PhysDiskDevHandle);
585 					if (targ) {
586 						targ->flags |=
587 						    MPR_TARGET_FLAGS_RAID_COMPONENT;
588 						printf("%s %d: Found Target "
589 						    "for handle 0x%x.\n",
590 						    __func__, __LINE__ ,
591 						    event_data->
592 						    PhysDiskDevHandle);
593 					}
594 				break;
595 				case MPI2_RAID_PD_STATE_OFFLINE:
596 				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
597 				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
598 				default:
599 					targ = mprsas_find_target_by_handle(
600 					    sassc, 0,
601 					    event_data->PhysDiskDevHandle);
602 					if (targ) {
603 						targ->flags |=
604 					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
605 						printf("%s %d: Found Target "
606 						    "for handle 0x%x.  \n",
607 						    __func__, __LINE__ ,
608 						    event_data->
609 						    PhysDiskDevHandle);
610 					}
611 				break;
612 			}
613 		default:
614 			break;
615 		}
616 		break;
617 	}
618 	case MPI2_EVENT_IR_OPERATION_STATUS:
619 	{
620 		Mpi2EventDataIrOperationStatus_t *event_data =
621 		    fw_event->event_data;
622 
623 		/*
624 		 * Informational only.
625 		 */
626 		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
627 		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
628 		    "percent complete for Volume with handle 0x%x",
629 		    event_data->RAIDOperation, event_data->PercentComplete,
630 		    le16toh(event_data->VolDevHandle));
631 		break;
632 	}
633 	case MPI2_EVENT_TEMP_THRESHOLD:
634 	{
635 		pMpi2EventDataTemperature_t	temp_event;
636 
637 		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
638 
639 		/*
640 		 * The Temp Sensor Count must be greater than the event's Sensor
641 		 * Num to be valid.  If valid, print the temp thresholds that
642 		 * have been exceeded.
643 		 */
644 		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
645 			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
646 			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
647 			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
648 			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
649 			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
650 			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
651 			    temp_event->SensorNum);
652 			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
653 			    "%d\n", temp_event->CurrentTemperature);
654 		}
655 		break;
656 	}
657 	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
658 	{
659 		pMpi26EventDataActiveCableExcept_t	ace_event_data;
660 		ace_event_data =
661 		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
662 
663 		switch(ace_event_data->ReasonCode) {
664 		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
665 		{
666 			mpr_printf(sc, "Currently a cable with "
667 			    "ReceptacleID %d cannot be powered and device "
668 			    "connected to this active cable will not be seen. "
669 			    "This active cable requires %d mW of power.\n",
670 			    ace_event_data->ReceptacleID,
671 			    ace_event_data->ActiveCablePowerRequirement);
672 			break;
673 		}
674 		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
675 		{
676 			mpr_printf(sc, "Currently a cable with "
677 			    "ReceptacleID %d is not running at optimal speed "
678 			    "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
679 			break;
680 		}
681 		default:
682 			break;
683 		}
684 		break;
685 	}
686 	case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
687 	{
688 		pMpi25EventDataSasDeviceDiscoveryError_t discovery_error_data;
689 		uint64_t sas_address;
690 
691 		discovery_error_data =
692 		    (pMpi25EventDataSasDeviceDiscoveryError_t)
693 		    fw_event->event_data;
694 
695 		sas_address = discovery_error_data->SASAddress.High;
696 		sas_address = (sas_address << 32) |
697 		    discovery_error_data->SASAddress.Low;
698 
699 		switch(discovery_error_data->ReasonCode) {
700 		case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
701 		{
702 			mpr_printf(sc, "SMP command failed during discovery "
703 			    "for expander with SAS Address %jx and "
704 			    "handle 0x%x.\n", sas_address,
705 			    discovery_error_data->DevHandle);
706 			break;
707 		}
708 		case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
709 		{
710 			mpr_printf(sc, "SMP command timed out during "
711 			    "discovery for expander with SAS Address %jx and "
712 			    "handle 0x%x.\n", sas_address,
713 			    discovery_error_data->DevHandle);
714 			break;
715 		}
716 		default:
717 			break;
718 		}
719 		break;
720 	}
721 	case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
722 	{
723 		MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
724 		MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
725 		uint8_t i, link_rate;
726 		uint16_t handle;
727 
728 		data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
729 		    fw_event->event_data;
730 
731 		mpr_mapping_pcie_topology_change_event(sc,
732 		    fw_event->event_data);
733 
734 		for (i = 0; i < data->NumEntries; i++) {
735 			port_entry = &data->PortEntry[i];
736 			handle = le16toh(port_entry->AttachedDevHandle);
737 			link_rate = port_entry->CurrentPortInfo &
738 			    MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
739 			switch (port_entry->PortStatus) {
740 			case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
741 				if (link_rate <
742 				    MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
743 					mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
744 					    "add PCIe device with handle 0x%x "
745 					    "with unknown link rate.\n",
746 					    __func__, handle);
747 					break;
748 				}
749 				if (mprsas_add_pcie_device(sc, handle,
750 				    link_rate)) {
751 					mpr_dprint(sc, MPR_ERROR, "%s: failed "
752 					    "to add PCIe device with handle "
753 					    "0x%x\n", __func__, handle);
754 					mprsas_prepare_remove(sassc, handle);
755 				}
756 				break;
757 			case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
758 				mprsas_prepare_remove(sassc, handle);
759 				break;
760 			case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
761 			case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
762 			case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
763 			default:
764 				break;
765 			}
766 		}
767 		/*
768 		 * refcount was incremented for this event in
769 		 * mprsas_evt_handler.  Decrement it here because the event has
770 		 * been processed.
771 		 */
772 		mprsas_startup_decrement(sassc);
773 		break;
774 	}
775 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
776 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
777 	default:
778 		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
779 		    fw_event->event);
780 		break;
781 
782 	}
783 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
784 	    __func__, fw_event->event);
785 	mprsas_fw_event_free(sc, fw_event);
786 }
787 
788 void
789 mprsas_firmware_event_work(void *arg, int pending)
790 {
791 	struct mpr_fw_event_work *fw_event;
792 	struct mpr_softc *sc;
793 
794 	sc = (struct mpr_softc *)arg;
795 	mpr_lock(sc);
796 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
797 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
798 		mprsas_fw_work(sc, fw_event);
799 	}
800 	mpr_unlock(sc);
801 }
802 
803 static int
804 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
805 {
806 	char devstring[80];
807 	struct mprsas_softc *sassc;
808 	struct mprsas_target *targ;
809 	Mpi2ConfigReply_t mpi_reply;
810 	Mpi2SasDevicePage0_t config_page;
811 	uint64_t sas_address, parent_sas_address = 0;
812 	u32 device_info, parent_devinfo = 0;
813 	unsigned int id;
814 	int ret = 1, error = 0, i;
815 	struct mprsas_lun *lun;
816 	u8 is_SATA_SSD = 0;
817 	struct mpr_command *cm;
818 
819 	sassc = sc->sassc;
820 	mprsas_startup_increment(sassc);
821 	if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
822 	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
823 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
824 		    "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
825 		    handle, mpi_reply.IOCStatus);
826 		error = ENXIO;
827 		goto out;
828 	}
829 
830 	device_info = le32toh(config_page.DeviceInfo);
831 
832 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
833 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
834 		Mpi2ConfigReply_t tmp_mpi_reply;
835 		Mpi2SasDevicePage0_t parent_config_page;
836 
837 		if (mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
838 		    &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
839 		    le16toh(config_page.ParentDevHandle)) != 0) {
840 			mpr_dprint(sc, MPR_MAPPING|MPR_FAULT,
841 			    "Error reading parent SAS device %#x page0, "
842 			    "iocstatus= 0x%x\n",
843 			    le16toh(config_page.ParentDevHandle),
844 			    tmp_mpi_reply.IOCStatus);
845 		} else {
846 			parent_sas_address = parent_config_page.SASAddress.High;
847 			parent_sas_address = (parent_sas_address << 32) |
848 			    parent_config_page.SASAddress.Low;
849 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
850 		}
851 	}
852 	/* TODO Check proper endianness */
853 	sas_address = config_page.SASAddress.High;
854 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
855 	mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address from SAS device "
856 	    "page0 = %jx\n", handle, sas_address);
857 
858 	/*
859 	 * Always get SATA Identify information because this is used to
860 	 * determine if Start/Stop Unit should be sent to the drive when the
861 	 * system is shutdown.
862 	 */
863 	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
864 		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
865 		    handle, device_info, &is_SATA_SSD);
866 		if (ret) {
867 			mpr_dprint(sc, MPR_MAPPING|MPR_ERROR,
868 			    "%s: failed to get disk type (SSD or HDD) for SATA "
869 			    "device with handle 0x%04x\n",
870 			    __func__, handle);
871 		} else {
872 			mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address "
873 			    "from SATA device = %jx\n", handle, sas_address);
874 		}
875 	}
876 
877 	/*
878 	 * use_phynum:
879 	 *  1 - use the PhyNum field as a fallback to the mapping logic
880 	 *  0 - never use the PhyNum field
881 	 * -1 - only use the PhyNum field
882 	 *
883 	 * Note that using the Phy number to map a device can cause device adds
884 	 * to fail if multiple enclosures/expanders are in the topology. For
885 	 * example, if two devices are in the same slot number in two different
886 	 * enclosures within the topology, only one of those devices will be
887 	 * added. PhyNum mapping should not be used if multiple enclosures are
888 	 * in the topology.
889 	 */
890 	id = MPR_MAP_BAD_ID;
891 	if (sc->use_phynum != -1)
892 		id = mpr_mapping_get_tid(sc, sas_address, handle);
893 	if (id == MPR_MAP_BAD_ID) {
894 		if ((sc->use_phynum == 0) ||
895 		    ((id = config_page.PhyNum) > sassc->maxtargets)) {
896 			mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
897 			    "Could not get ID for device with handle 0x%04x\n",
898 			    __FILE__, __LINE__, __func__, handle);
899 			error = ENXIO;
900 			goto out;
901 		}
902 	}
903 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
904 	    __func__, id);
905 
906 	/*
907 	 * Only do the ID check and reuse check if the target is not from a
908 	 * RAID Component. For Physical Disks of a Volume, the ID will be reused
909 	 * when a volume is deleted because the mapping entry for the PD will
910 	 * still be in the mapping table. The ID check should not be done here
911 	 * either since this PD is already being used.
912 	 */
913 	targ = &sassc->targets[id];
914 	if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
915 		if (mprsas_check_id(sassc, id) != 0) {
916 			mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
917 			    "Excluding target id %d\n", id);
918 			error = ENXIO;
919 			goto out;
920 		}
921 
922 		if (targ->handle != 0x0) {
923 			mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
924 			    "target id %d handle 0x%04x\n", id, targ->handle);
925 			error = ENXIO;
926 			goto out;
927 		}
928 	}
929 
930 	targ->devinfo = device_info;
931 	targ->devname = le32toh(config_page.DeviceName.High);
932 	targ->devname = (targ->devname << 32) |
933 	    le32toh(config_page.DeviceName.Low);
934 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
935 	targ->encl_slot = le16toh(config_page.Slot);
936 	targ->encl_level = config_page.EnclosureLevel;
937 	targ->connector_name[0] = config_page.ConnectorName[0];
938 	targ->connector_name[1] = config_page.ConnectorName[1];
939 	targ->connector_name[2] = config_page.ConnectorName[2];
940 	targ->connector_name[3] = config_page.ConnectorName[3];
941 	targ->handle = handle;
942 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
943 	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
944 	targ->parent_sasaddr = le64toh(parent_sas_address);
945 	targ->parent_devinfo = parent_devinfo;
946 	targ->tid = id;
947 	targ->linkrate = (linkrate>>4);
948 	targ->flags = 0;
949 	if (is_SATA_SSD) {
950 		targ->flags = MPR_TARGET_IS_SATA_SSD;
951 	}
952 	if ((le16toh(config_page.Flags) &
953 	    MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
954 	    (le16toh(config_page.Flags) &
955 	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
956 		targ->scsi_req_desc_type =
957 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
958 	}
959 	if (le16toh(config_page.Flags) &
960 	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
961 		targ->encl_level_valid = TRUE;
962 	}
963 	TAILQ_INIT(&targ->commands);
964 	TAILQ_INIT(&targ->timedout_commands);
965 	while (!SLIST_EMPTY(&targ->luns)) {
966 		lun = SLIST_FIRST(&targ->luns);
967 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
968 		free(lun, M_MPR);
969 	}
970 	SLIST_INIT(&targ->luns);
971 
972 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
973 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
974 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
975 	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
976 	    targ->handle, targ->encl_handle, targ->encl_slot);
977 	if (targ->encl_level_valid) {
978 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
979 		    "and connector name (%4s)\n", targ->encl_level,
980 		    targ->connector_name);
981 	}
982 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
983     (__FreeBSD_version < 902502)
984 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
985 #endif
986 		mprsas_rescan_target(sc, targ);
987 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
988 
989 	/*
990 	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
991 	 * If so, send a Target Reset TM to the target that was just created.
992 	 * An Abort Task TM should be used instead of a Target Reset, but that
993 	 * would be much more difficult because targets have not been fully
994 	 * discovered yet, and LUN's haven't been setup.  So, just reset the
995 	 * target instead of the LUN.
996 	 */
997 	for (i = 1; i < sc->num_reqs; i++) {
998 		cm = &sc->commands[i];
999 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1000 			targ->timeouts++;
1001 			cm->cm_state = MPR_CM_STATE_TIMEDOUT;
1002 
1003 			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
1004 				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
1005 				    "Reset for stuck SATA identify command "
1006 				    "(cm = %p)\n", __func__, cm);
1007 				targ->tm->cm_targ = targ;
1008 				mprsas_send_reset(sc, targ->tm,
1009 				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
1010 			} else {
1011 				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
1012 				    "tm for Target Reset after SATA ID command "
1013 				    "timed out (cm %p)\n", cm);
1014 			}
1015 			/*
1016 			 * No need to check for more since the target is
1017 			 * already being reset.
1018 			 */
1019 			break;
1020 		}
1021 	}
1022 out:
1023 	/*
1024 	 * Free the commands that may not have been freed from the SATA ID call
1025 	 */
1026 	for (i = 1; i < sc->num_reqs; i++) {
1027 		cm = &sc->commands[i];
1028 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1029 			mpr_free_command(sc, cm);
1030 		}
1031 	}
1032 	mprsas_startup_decrement(sassc);
1033 	return (error);
1034 }
1035 
1036 int
1037 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
1038     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
1039 {
1040 	Mpi2SataPassthroughReply_t mpi_reply;
1041 	int i, rc, try_count;
1042 	u32 *bufferptr;
1043 	union _sata_sas_address hash_address;
1044 	struct _ata_identify_device_data ata_identify;
1045 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
1046 	u32 ioc_status;
1047 	u8 sas_status;
1048 
1049 	memset(&ata_identify, 0, sizeof(ata_identify));
1050 	memset(&mpi_reply, 0, sizeof(mpi_reply));
1051 	try_count = 0;
1052 	do {
1053 		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
1054 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
1055 		try_count++;
1056 		ioc_status = le16toh(mpi_reply.IOCStatus)
1057 		    & MPI2_IOCSTATUS_MASK;
1058 		sas_status = mpi_reply.SASStatus;
1059 		switch (ioc_status) {
1060 		case MPI2_IOCSTATUS_SUCCESS:
1061 			break;
1062 		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
1063 			/* No sense sleeping.  this error won't get better */
1064 			break;
1065 		default:
1066 			if (sc->spinup_wait_time > 0) {
1067 				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
1068 				    "after SATA ID error to wait for spinup\n",
1069 				    sc->spinup_wait_time);
1070 				msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
1071 				    "mprid", sc->spinup_wait_time * hz);
1072 			}
1073 		}
1074 	} while (((rc && (rc != EWOULDBLOCK)) ||
1075 	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
1076 	    || sas_status) && (try_count < 5));
1077 
1078 	if (rc == 0 && !ioc_status && !sas_status) {
1079 		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
1080 		    "successfully for handle = 0x%x with try_count = %d\n",
1081 		    __func__, handle, try_count);
1082 	} else {
1083 		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
1084 		    __func__, handle);
1085 		return -1;
1086 	}
1087 	/* Copy & byteswap the 40 byte model number to a buffer */
1088 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
1089 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
1090 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
1091 	}
1092 	/* Copy & byteswap the 20 byte serial number to a buffer */
1093 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
1094 		buffer[MPT2SAS_MN_LEN + i] =
1095 		    ((u8 *)ata_identify.serial_number)[i + 1];
1096 		buffer[MPT2SAS_MN_LEN + i + 1] =
1097 		    ((u8 *)ata_identify.serial_number)[i];
1098 	}
1099 	bufferptr = (u32 *)buffer;
1100 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
1101 	 * so loop through the first 56 bytes (7*8),
1102 	 * and then add in the last dword.
1103 	 */
1104 	hash_address.word.low  = 0;
1105 	hash_address.word.high = 0;
1106 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
1107 		hash_address.word.low += *bufferptr;
1108 		bufferptr++;
1109 		hash_address.word.high += *bufferptr;
1110 		bufferptr++;
1111 	}
1112 	/* Add the last dword */
1113 	hash_address.word.low += *bufferptr;
1114 	/* Make sure the hash doesn't start with 5, because it could clash
1115 	 * with a SAS address. Change 5 to a D.
1116 	 */
1117 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
1118 		hash_address.word.high |= 0x00000080;
1119 	*sas_address = (u64)hash_address.wwid[0] << 56 |
1120 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
1121 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
1122 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
1123 	    (u64)hash_address.wwid[7];
1124 	if (ata_identify.rotational_speed == 1) {
1125 		*is_SATA_SSD = 1;
1126 	}
1127 
1128 	return 0;
1129 }
1130 
1131 static int
1132 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
1133     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
1134 {
1135 	Mpi2SataPassthroughRequest_t *mpi_request;
1136 	Mpi2SataPassthroughReply_t *reply;
1137 	struct mpr_command *cm;
1138 	char *buffer;
1139 	int error = 0;
1140 
1141 	buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
1142 	if (!buffer)
1143 		return ENOMEM;
1144 
1145 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1146 		free(buffer, M_MPR);
1147 		return (EBUSY);
1148 	}
1149 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
1150 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
1151 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
1152 	mpi_request->VF_ID = 0;
1153 	mpi_request->DevHandle = htole16(handle);
1154 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1155 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1156 	mpi_request->DataLength = htole32(sz);
1157 	mpi_request->CommandFIS[0] = 0x27;
1158 	mpi_request->CommandFIS[1] = 0x80;
1159 	mpi_request->CommandFIS[2] =  (devinfo &
1160 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1161 	cm->cm_sge = &mpi_request->SGL;
1162 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1163 	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1164 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1165 	cm->cm_data = buffer;
1166 	cm->cm_length = htole32(sz);
1167 
1168 	/*
1169 	 * Start a timeout counter specifically for the SATA ID command. This
1170 	 * is used to fix a problem where the FW does not send a reply sometimes
1171 	 * when a bad disk is in the topology. So, this is used to timeout the
1172 	 * command so that processing can continue normally.
1173 	 */
1174 	mpr_dprint(sc, MPR_XINFO, "%s start timeout counter for SATA ID "
1175 	    "command\n", __func__);
1176 	callout_reset(&cm->cm_callout, MPR_ATA_ID_TIMEOUT * hz,
1177 	    mprsas_ata_id_timeout, cm);
1178 	error = mpr_wait_command(sc, &cm, 60, CAN_SLEEP);
1179 	mpr_dprint(sc, MPR_XINFO, "%s stop timeout counter for SATA ID "
1180 	    "command\n", __func__);
1181 	/* XXX KDM need to fix the case where this command is destroyed */
1182 	callout_stop(&cm->cm_callout);
1183 
1184 	if (cm != NULL)
1185 		reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1186 	if (error || (reply == NULL)) {
1187 		/* FIXME */
1188 		/*
1189 		 * If the request returns an error then we need to do a diag
1190 		 * reset
1191 		 */
1192 		mpr_dprint(sc, MPR_INFO|MPR_FAULT|MPR_MAPPING,
1193 		    "Request for SATA PASSTHROUGH page completed with error %d",
1194 		    error);
1195 		error = ENXIO;
1196 		goto out;
1197 	}
1198 	bcopy(buffer, id_buffer, sz);
1199 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1200 	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1201 	    MPI2_IOCSTATUS_SUCCESS) {
1202 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
1203 		    "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
1204 		    handle, reply->IOCStatus);
1205 		error = ENXIO;
1206 		goto out;
1207 	}
1208 out:
1209 	/*
1210 	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1211 	 * it.  The command will be freed after sending a target reset TM. If
1212 	 * the command did timeout, use EWOULDBLOCK.
1213 	 */
1214 	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0)
1215 		mpr_free_command(sc, cm);
1216 	else if (error == 0)
1217 		error = EWOULDBLOCK;
1218 	cm->cm_data = NULL;
1219 	free(buffer, M_MPR);
1220 	return (error);
1221 }
1222 
1223 static void
1224 mprsas_ata_id_timeout(void *data)
1225 {
1226 	struct mpr_softc *sc;
1227 	struct mpr_command *cm;
1228 
1229 	cm = (struct mpr_command *)data;
1230 	sc = cm->cm_sc;
1231 	mtx_assert(&sc->mpr_mtx, MA_OWNED);
1232 
1233 	mpr_dprint(sc, MPR_INFO, "%s checking ATA ID command %p sc %p\n",
1234 	    __func__, cm, sc);
1235 	if ((callout_pending(&cm->cm_callout)) ||
1236 	    (!callout_active(&cm->cm_callout))) {
1237 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1238 		    __func__);
1239 		return;
1240 	}
1241 	callout_deactivate(&cm->cm_callout);
1242 
1243 	/*
1244 	 * Run the interrupt handler to make sure it's not pending.  This
1245 	 * isn't perfect because the command could have already completed
1246 	 * and been re-used, though this is unlikely.
1247 	 */
1248 	mpr_intr_locked(sc);
1249 	if (cm->cm_state == MPR_CM_STATE_FREE) {
1250 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1251 		    __func__);
1252 		return;
1253 	}
1254 
1255 	mpr_dprint(sc, MPR_INFO, "ATA ID command timeout cm %p\n", cm);
1256 
1257 	/*
1258 	 * Send wakeup() to the sleeping thread that issued this ATA ID command.
1259 	 * wakeup() will cause msleep to return a 0 (not EWOULDBLOCK), and this
1260 	 * will keep reinit() from being called. This way, an Abort Task TM can
1261 	 * be issued so that the timed out command can be cleared. The Abort
1262 	 * Task cannot be sent from here because the driver has not completed
1263 	 * setting up targets.  Instead, the command is flagged so that special
1264 	 * handling will be used to send the abort.
1265 	 */
1266 	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1267 	wakeup(cm);
1268 }
1269 
1270 static int
1271 mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
1272 {
1273 	char devstring[80];
1274 	struct mprsas_softc *sassc;
1275 	struct mprsas_target *targ;
1276 	Mpi2ConfigReply_t mpi_reply;
1277 	Mpi26PCIeDevicePage0_t config_page;
1278 	Mpi26PCIeDevicePage2_t config_page2;
1279 	uint64_t pcie_wwid, parent_wwid = 0;
1280 	u32 device_info, parent_devinfo = 0;
1281 	unsigned int id;
1282 	int error = 0;
1283 	struct mprsas_lun *lun;
1284 
1285 	sassc = sc->sassc;
1286 	mprsas_startup_increment(sassc);
1287 	if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
1288 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1289 		printf("%s: error reading PCIe device page0\n", __func__);
1290 		error = ENXIO;
1291 		goto out;
1292 	}
1293 
1294 	device_info = le32toh(config_page.DeviceInfo);
1295 
1296 	if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
1297 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
1298 		Mpi2ConfigReply_t tmp_mpi_reply;
1299 		Mpi26PCIeDevicePage0_t parent_config_page;
1300 
1301 		if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
1302 		     &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1303 		     le16toh(config_page.ParentDevHandle)))) {
1304 			printf("%s: error reading PCIe device %#x page0\n",
1305 			    __func__, le16toh(config_page.ParentDevHandle));
1306 		} else {
1307 			parent_wwid = parent_config_page.WWID.High;
1308 			parent_wwid = (parent_wwid << 32) |
1309 			    parent_config_page.WWID.Low;
1310 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
1311 		}
1312 	}
1313 	/* TODO Check proper endianness */
1314 	pcie_wwid = config_page.WWID.High;
1315 	pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
1316 	mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
1317 	    pcie_wwid);
1318 
1319 	if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
1320 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1321 		printf("%s: error reading PCIe device page2\n", __func__);
1322 		error = ENXIO;
1323 		goto out;
1324 	}
1325 
1326 	id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
1327 	if (id == MPR_MAP_BAD_ID) {
1328 		mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
1329 		    "Could not get ID for device with handle 0x%04x\n",
1330 		    __FILE__, __LINE__, __func__, handle);
1331 		error = ENXIO;
1332 		goto out;
1333 	}
1334 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
1335 	    __func__, id);
1336 
1337 	if (mprsas_check_id(sassc, id) != 0) {
1338 		mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
1339 		    "Excluding target id %d\n", id);
1340 		error = ENXIO;
1341 		goto out;
1342 	}
1343 
1344 	mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
1345 	    pcie_wwid);
1346 	targ = &sassc->targets[id];
1347 	targ->devinfo = device_info;
1348 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
1349 	targ->encl_slot = le16toh(config_page.Slot);
1350 	targ->encl_level = config_page.EnclosureLevel;
1351 	targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
1352 	targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
1353 	targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
1354 	targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
1355 	targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
1356 	targ->MDTS = config_page2.MaximumDataTransferSize;
1357 	/*
1358 	 * Assume always TRUE for encl_level_valid because there is no valid
1359 	 * flag for PCIe.
1360 	 */
1361 	targ->encl_level_valid = TRUE;
1362 	targ->handle = handle;
1363 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
1364 	targ->sasaddr = mpr_to_u64(&config_page.WWID);
1365 	targ->parent_sasaddr = le64toh(parent_wwid);
1366 	targ->parent_devinfo = parent_devinfo;
1367 	targ->tid = id;
1368 	targ->linkrate = linkrate;
1369 	targ->flags = 0;
1370 	if ((le16toh(config_page.Flags) &
1371 	    MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) &&
1372 	    (le16toh(config_page.Flags) &
1373 	    MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
1374 		targ->scsi_req_desc_type =
1375 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
1376 	}
1377 	TAILQ_INIT(&targ->commands);
1378 	TAILQ_INIT(&targ->timedout_commands);
1379 	while (!SLIST_EMPTY(&targ->luns)) {
1380 		lun = SLIST_FIRST(&targ->luns);
1381 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1382 		free(lun, M_MPR);
1383 	}
1384 	SLIST_INIT(&targ->luns);
1385 
1386 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
1387 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
1388 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
1389 	    mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
1390 	    targ->handle, targ->encl_handle, targ->encl_slot);
1391 	if (targ->encl_level_valid) {
1392 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
1393 		    "and connector name (%4s)\n", targ->encl_level,
1394 		    targ->connector_name);
1395 	}
1396 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1397     (__FreeBSD_version < 902502)
1398 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1399 #endif
1400 		mprsas_rescan_target(sc, targ);
1401 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1402 
1403 out:
1404 	mprsas_startup_decrement(sassc);
1405 	return (error);
1406 }
1407 
1408 static int
1409 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1410 {
1411 	struct mprsas_softc *sassc;
1412 	struct mprsas_target *targ;
1413 	u64 wwid;
1414 	unsigned int id;
1415 	int error = 0;
1416 	struct mprsas_lun *lun;
1417 
1418 	sassc = sc->sassc;
1419 	mprsas_startup_increment(sassc);
1420 	/* wwid is endian safe */
1421 	mpr_config_get_volume_wwid(sc, handle, &wwid);
1422 	if (!wwid) {
1423 		printf("%s: invalid WWID; cannot add volume to mapping table\n",
1424 		    __func__);
1425 		error = ENXIO;
1426 		goto out;
1427 	}
1428 
1429 	id = mpr_mapping_get_raid_tid(sc, wwid, handle);
1430 	if (id == MPR_MAP_BAD_ID) {
1431 		printf("%s: could not get ID for volume with handle 0x%04x and "
1432 		    "WWID 0x%016llx\n", __func__, handle,
1433 		    (unsigned long long)wwid);
1434 		error = ENXIO;
1435 		goto out;
1436 	}
1437 
1438 	targ = &sassc->targets[id];
1439 	targ->tid = id;
1440 	targ->handle = handle;
1441 	targ->devname = wwid;
1442 	TAILQ_INIT(&targ->commands);
1443 	TAILQ_INIT(&targ->timedout_commands);
1444 	while (!SLIST_EMPTY(&targ->luns)) {
1445 		lun = SLIST_FIRST(&targ->luns);
1446 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1447 		free(lun, M_MPR);
1448 	}
1449 	SLIST_INIT(&targ->luns);
1450 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1451     (__FreeBSD_version < 902502)
1452 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1453 #endif
1454 		mprsas_rescan_target(sc, targ);
1455 	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1456 	    targ->tid, wwid);
1457 out:
1458 	mprsas_startup_decrement(sassc);
1459 	return (error);
1460 }
1461 
1462 /**
1463  * mprsas_SSU_to_SATA_devices
1464  * @sc: per adapter object
1465  *
1466  * Looks through the target list and issues a StartStopUnit SCSI command to each
1467  * SATA direct-access device.  This helps to ensure that data corruption is
1468  * avoided when the system is being shut down.  This must be called after the IR
1469  * System Shutdown RAID Action is sent if in IR mode.
1470  *
1471  * Return nothing.
1472  */
1473 static void
1474 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto)
1475 {
1476 	struct mprsas_softc *sassc = sc->sassc;
1477 	union ccb *ccb;
1478 	path_id_t pathid = cam_sim_path(sassc->sim);
1479 	target_id_t targetid;
1480 	struct mprsas_target *target;
1481 	char path_str[64];
1482 	int timeout;
1483 
1484 	mpr_lock(sc);
1485 
1486 	/*
1487 	 * For each target, issue a StartStopUnit command to stop the device.
1488 	 */
1489 	sc->SSU_started = TRUE;
1490 	sc->SSU_refcount = 0;
1491 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1492 		target = &sassc->targets[targetid];
1493 		if (target->handle == 0x0) {
1494 			continue;
1495 		}
1496 
1497 		/*
1498 		 * The stop_at_shutdown flag will be set if this device is
1499 		 * a SATA direct-access end device.
1500 		 */
1501 		if (target->stop_at_shutdown) {
1502 			ccb = xpt_alloc_ccb_nowait();
1503 			if (ccb == NULL) {
1504 				mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
1505 				    "to stop unit.\n");
1506 				return;
1507 			}
1508 
1509 			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1510 			    pathid, targetid, CAM_LUN_WILDCARD) !=
1511 			    CAM_REQ_CMP) {
1512 				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1513 				    "path to stop unit.\n");
1514 				xpt_free_ccb(ccb);
1515 				return;
1516 			}
1517 			xpt_path_string(ccb->ccb_h.path, path_str,
1518 			    sizeof(path_str));
1519 
1520 			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1521 			    "handle %d\n", path_str, target->handle);
1522 
1523 			/*
1524 			 * Issue a START STOP UNIT command for the target.
1525 			 * Increment the SSU counter to be used to count the
1526 			 * number of required replies.
1527 			 */
1528 			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1529 			sc->SSU_refcount++;
1530 			ccb->ccb_h.target_id =
1531 			    xpt_path_target_id(ccb->ccb_h.path);
1532 			ccb->ccb_h.ppriv_ptr1 = sassc;
1533 			scsi_start_stop(&ccb->csio,
1534 			    /*retries*/0,
1535 			    mprsas_stop_unit_done,
1536 			    MSG_SIMPLE_Q_TAG,
1537 			    /*start*/FALSE,
1538 			    /*load/eject*/0,
1539 			    /*immediate*/FALSE,
1540 			    MPR_SENSE_LEN,
1541 			    /*timeout*/10000);
1542 			xpt_action(ccb);
1543 		}
1544 	}
1545 
1546 	mpr_unlock(sc);
1547 
1548 	/*
1549 	 * Timeout after 60 seconds by default or 10 seconds if howto has
1550 	 * RB_NOSYNC set which indicates we're likely handling a panic.
1551 	 */
1552 	timeout = 600;
1553 	if (howto & RB_NOSYNC)
1554 		timeout = 100;
1555 
1556 	/*
1557 	 * Wait until all of the SSU commands have completed or time
1558 	 * has expired. Pause for 100ms each time through.  If any
1559 	 * command times out, the target will be reset in the SCSI
1560 	 * command timeout routine.
1561 	 */
1562 	while (sc->SSU_refcount > 0) {
1563 		pause("mprwait", hz/10);
1564 		if (SCHEDULER_STOPPED())
1565 			xpt_sim_poll(sassc->sim);
1566 
1567 		if (--timeout == 0) {
1568 			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1569 			    "for SSU commands to complete.\n");
1570 			break;
1571 		}
1572 	}
1573 }
1574 
1575 static void
1576 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1577 {
1578 	struct mprsas_softc *sassc;
1579 	char path_str[64];
1580 
1581 	if (done_ccb == NULL)
1582 		return;
1583 
1584 	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1585 
1586 	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1587 	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1588 	    path_str);
1589 
1590 	/*
1591 	 * Nothing more to do except free the CCB and path.  If the command
1592 	 * timed out, an abort reset, then target reset will be issued during
1593 	 * the SCSI Command process.
1594 	 */
1595 	xpt_free_path(done_ccb->ccb_h.path);
1596 	xpt_free_ccb(done_ccb);
1597 }
1598 
1599 /**
1600  * mprsas_ir_shutdown - IR shutdown notification
1601  * @sc: per adapter object
1602  *
1603  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1604  * the host system is shutting down.
1605  *
1606  * Return nothing.
1607  */
1608 void
1609 mprsas_ir_shutdown(struct mpr_softc *sc, int howto)
1610 {
1611 	u16 volume_mapping_flags;
1612 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1613 	struct dev_mapping_table *mt_entry;
1614 	u32 start_idx, end_idx;
1615 	unsigned int id, found_volume = 0;
1616 	struct mpr_command *cm;
1617 	Mpi2RaidActionRequest_t	*action;
1618 	target_id_t targetid;
1619 	struct mprsas_target *target;
1620 
1621 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1622 
1623 	/* is IR firmware build loaded? */
1624 	if (!sc->ir_firmware)
1625 		goto out;
1626 
1627 	/* are there any volumes?  Look at IR target IDs. */
1628 	// TODO-later, this should be looked up in the RAID config structure
1629 	// when it is implemented.
1630 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1631 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1632 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1633 		start_idx = 0;
1634 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1635 			start_idx = 1;
1636 	} else
1637 		start_idx = sc->max_devices - sc->max_volumes;
1638 	end_idx = start_idx + sc->max_volumes - 1;
1639 
1640 	for (id = start_idx; id < end_idx; id++) {
1641 		mt_entry = &sc->mapping_table[id];
1642 		if ((mt_entry->physical_id != 0) &&
1643 		    (mt_entry->missing_count == 0)) {
1644 			found_volume = 1;
1645 			break;
1646 		}
1647 	}
1648 
1649 	if (!found_volume)
1650 		goto out;
1651 
1652 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1653 		printf("%s: command alloc failed\n", __func__);
1654 		goto out;
1655 	}
1656 
1657 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1658 	action->Function = MPI2_FUNCTION_RAID_ACTION;
1659 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1660 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1661 	mpr_lock(sc);
1662 	mpr_wait_command(sc, &cm, 5, CAN_SLEEP);
1663 	mpr_unlock(sc);
1664 
1665 	/*
1666 	 * Don't check for reply, just leave.
1667 	 */
1668 	if (cm)
1669 		mpr_free_command(sc, cm);
1670 
1671 out:
1672 	/*
1673 	 * All of the targets must have the correct value set for
1674 	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1675 	 *
1676 	 * The possible values for the 'enable_ssu' variable are:
1677 	 * 0: disable to SSD and HDD
1678 	 * 1: disable only to HDD (default)
1679 	 * 2: disable only to SSD
1680 	 * 3: enable to SSD and HDD
1681 	 * anything else will default to 1.
1682 	 */
1683 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1684 		target = &sc->sassc->targets[targetid];
1685 		if (target->handle == 0x0) {
1686 			continue;
1687 		}
1688 
1689 		if (target->supports_SSU) {
1690 			switch (sc->enable_ssu) {
1691 			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1692 				target->stop_at_shutdown = FALSE;
1693 				break;
1694 			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1695 				target->stop_at_shutdown = TRUE;
1696 				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1697 					target->stop_at_shutdown = FALSE;
1698 				}
1699 				break;
1700 			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1701 				target->stop_at_shutdown = TRUE;
1702 				break;
1703 			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1704 			default:
1705 				target->stop_at_shutdown = TRUE;
1706 				if ((target->flags &
1707 				    MPR_TARGET_IS_SATA_SSD) == 0) {
1708 					target->stop_at_shutdown = FALSE;
1709 				}
1710 				break;
1711 			}
1712 		}
1713 	}
1714 	mprsas_SSU_to_SATA_devices(sc, howto);
1715 }
1716