xref: /freebsd/sys/dev/mpr/mpr_sas_lsi.c (revision 77013d11e6483b970af25e13c9b892075742f7e5)
1 /*-
2  * Copyright (c) 2011-2015 LSI Corp.
3  * Copyright (c) 2013-2016 Avago Technologies
4  * Copyright 2000-2020 Broadcom Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * Broadcom Inc. (LSI) MPT-Fusion Host Adapter FreeBSD
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 /* Communications core for Avago Technologies (LSI) MPT3 */
35 
36 /* TODO Move headers to mprvar */
37 #include <sys/types.h>
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/selinfo.h>
42 #include <sys/module.h>
43 #include <sys/bus.h>
44 #include <sys/conf.h>
45 #include <sys/bio.h>
46 #include <sys/malloc.h>
47 #include <sys/uio.h>
48 #include <sys/sysctl.h>
49 #include <sys/endian.h>
50 #include <sys/proc.h>
51 #include <sys/queue.h>
52 #include <sys/kthread.h>
53 #include <sys/taskqueue.h>
54 #include <sys/sbuf.h>
55 #include <sys/reboot.h>
56 
57 #include <machine/bus.h>
58 #include <machine/resource.h>
59 #include <sys/rman.h>
60 
61 #include <machine/stdarg.h>
62 
63 #include <cam/cam.h>
64 #include <cam/cam_ccb.h>
65 #include <cam/cam_debug.h>
66 #include <cam/cam_sim.h>
67 #include <cam/cam_xpt_sim.h>
68 #include <cam/cam_xpt_periph.h>
69 #include <cam/cam_periph.h>
70 #include <cam/scsi/scsi_all.h>
71 #include <cam/scsi/scsi_message.h>
72 
73 #include <dev/mpr/mpi/mpi2_type.h>
74 #include <dev/mpr/mpi/mpi2.h>
75 #include <dev/mpr/mpi/mpi2_ioc.h>
76 #include <dev/mpr/mpi/mpi2_sas.h>
77 #include <dev/mpr/mpi/mpi2_pci.h>
78 #include <dev/mpr/mpi/mpi2_cnfg.h>
79 #include <dev/mpr/mpi/mpi2_init.h>
80 #include <dev/mpr/mpi/mpi2_raid.h>
81 #include <dev/mpr/mpi/mpi2_tool.h>
82 #include <dev/mpr/mpr_ioctl.h>
83 #include <dev/mpr/mprvar.h>
84 #include <dev/mpr/mpr_table.h>
85 #include <dev/mpr/mpr_sas.h>
86 
87 /* For Hashed SAS Address creation for SATA Drives */
88 #define MPT2SAS_SN_LEN 20
89 #define MPT2SAS_MN_LEN 40
90 
91 struct mpr_fw_event_work {
92 	u16			event;
93 	void			*event_data;
94 	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
95 };
96 
97 union _sata_sas_address {
98 	u8 wwid[8];
99 	struct {
100 		u32 high;
101 		u32 low;
102 	} word;
103 };
104 
105 /*
106  * define the IDENTIFY DEVICE structure
107  */
108 struct _ata_identify_device_data {
109 	u16 reserved1[10];	/* 0-9 */
110 	u16 serial_number[10];	/* 10-19 */
111 	u16 reserved2[7];	/* 20-26 */
112 	u16 model_number[20];	/* 27-46*/
113 	u16 reserved3[170];	/* 47-216 */
114 	u16 rotational_speed;	/* 217 */
115 	u16 reserved4[38];	/* 218-255 */
116 };
117 static u32 event_count;
118 static void mprsas_fw_work(struct mpr_softc *sc,
119     struct mpr_fw_event_work *fw_event);
120 static void mprsas_fw_event_free(struct mpr_softc *,
121     struct mpr_fw_event_work *);
122 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
123 static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
124     u8 linkrate);
125 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
126     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
127     u32 devinfo);
128 static void mprsas_ata_id_complete(struct mpr_softc *, struct mpr_command *);
129 static void mprsas_ata_id_timeout(struct mpr_softc *, struct mpr_command *);
130 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
131     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
132 static int mprsas_volume_add(struct mpr_softc *sc,
133     u16 handle);
134 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto);
135 static void mprsas_stop_unit_done(struct cam_periph *periph,
136     union ccb *done_ccb);
137 
138 void
139 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
140     MPI2_EVENT_NOTIFICATION_REPLY *event)
141 {
142 	struct mpr_fw_event_work *fw_event;
143 	u16 sz;
144 
145 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
146 	MPR_DPRINT_EVENT(sc, sas, event);
147 	mprsas_record_event(sc, event);
148 
149 	fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
150 	     M_ZERO|M_NOWAIT);
151 	if (!fw_event) {
152 		printf("%s: allocate failed for fw_event\n", __func__);
153 		return;
154 	}
155 	sz = le16toh(event->EventDataLength) * 4;
156 	fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
157 	if (!fw_event->event_data) {
158 		printf("%s: allocate failed for event_data\n", __func__);
159 		free(fw_event, M_MPR);
160 		return;
161 	}
162 
163 	bcopy(event->EventData, fw_event->event_data, sz);
164 	fw_event->event = le16toh(event->Event);
165 	if ((fw_event->event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
166 	    fw_event->event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
167 	    fw_event->event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
168 	    fw_event->event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
169 	    sc->track_mapping_events)
170 		sc->pending_map_events++;
171 
172 	/*
173 	 * When wait_for_port_enable flag is set, make sure that all the events
174 	 * are processed. Increment the startup_refcount and decrement it after
175 	 * events are processed.
176 	 */
177 	if ((fw_event->event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
178 	    fw_event->event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
179 	    fw_event->event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
180 	    sc->wait_for_port_enable)
181 		mprsas_startup_increment(sc->sassc);
182 
183 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
184 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
185 }
186 
187 static void
188 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
189 {
190 
191 	free(fw_event->event_data, M_MPR);
192 	free(fw_event, M_MPR);
193 }
194 
195 /**
196  * _mpr_fw_work - delayed task for processing firmware events
197  * @sc: per adapter object
198  * @fw_event: The fw_event_work object
199  * Context: user.
200  *
201  * Return nothing.
202  */
203 static void
204 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
205 {
206 	struct mprsas_softc *sassc;
207 	sassc = sc->sassc;
208 
209 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
210 	    event_count++, __func__, fw_event->event);
211 	switch (fw_event->event) {
212 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
213 	{
214 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
215 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
216 		uint8_t i;
217 
218 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
219 		    fw_event->event_data;
220 
221 		mpr_mapping_topology_change_event(sc, fw_event->event_data);
222 
223 		for (i = 0; i < data->NumEntries; i++) {
224 			phy = &data->PHY[i];
225 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
226 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
227 				if (mprsas_add_device(sc,
228 				    le16toh(phy->AttachedDevHandle),
229 				    phy->LinkRate)) {
230 					mpr_dprint(sc, MPR_ERROR, "%s: "
231 					    "failed to add device with handle "
232 					    "0x%x\n", __func__,
233 					    le16toh(phy->AttachedDevHandle));
234 					mprsas_prepare_remove(sassc, le16toh(
235 					    phy->AttachedDevHandle));
236 				}
237 				break;
238 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
239 				mprsas_prepare_remove(sassc, le16toh(
240 				    phy->AttachedDevHandle));
241 				break;
242 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
243 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
244 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
245 			default:
246 				break;
247 			}
248 		}
249 		/*
250 		 * refcount was incremented for this event in
251 		 * mprsas_evt_handler.  Decrement it here because the event has
252 		 * been processed.
253 		 */
254 		mprsas_startup_decrement(sassc);
255 		break;
256 	}
257 	case MPI2_EVENT_SAS_DISCOVERY:
258 	{
259 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
260 
261 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
262 
263 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
264 			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
265 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
266 			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
267 			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
268 			mprsas_discovery_end(sassc);
269 		}
270 		break;
271 	}
272 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
273 	{
274 		Mpi2EventDataSasEnclDevStatusChange_t *data;
275 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
276 		    fw_event->event_data;
277 		mpr_mapping_enclosure_dev_status_change_event(sc,
278 		    fw_event->event_data);
279 		break;
280 	}
281 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
282 	{
283 		Mpi2EventIrConfigElement_t *element;
284 		int i;
285 		u8 foreign_config, reason;
286 		u16 elementType;
287 		Mpi2EventDataIrConfigChangeList_t *event_data;
288 		struct mprsas_target *targ;
289 		unsigned int id;
290 
291 		event_data = fw_event->event_data;
292 		foreign_config = (le32toh(event_data->Flags) &
293 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
294 
295 		element =
296 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
297 		id = mpr_mapping_get_raid_tid_from_handle(sc,
298 		    element->VolDevHandle);
299 
300 		mpr_mapping_ir_config_change_event(sc, event_data);
301 		for (i = 0; i < event_data->NumElements; i++, element++) {
302 			reason = element->ReasonCode;
303 			elementType = le16toh(element->ElementFlags) &
304 			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
305 			/*
306 			 * check for element type of Phys Disk or Hot Spare
307 			 */
308 			if ((elementType !=
309 			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
310 			    && (elementType !=
311 			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
312 				// do next element
313 				goto skip_fp_send;
314 
315 			/*
316 			 * check for reason of Hide, Unhide, PD Created, or PD
317 			 * Deleted
318 			 */
319 			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
320 			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
321 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
322 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
323 				goto skip_fp_send;
324 
325 			// check for a reason of Hide or PD Created
326 			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
327 			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
328 			{
329 				// build RAID Action message
330 				Mpi2RaidActionRequest_t	*action;
331 				Mpi2RaidActionReply_t *reply = NULL;
332 				struct mpr_command *cm;
333 				int error = 0;
334 				if ((cm = mpr_alloc_command(sc)) == NULL) {
335 					printf("%s: command alloc failed\n",
336 					    __func__);
337 					return;
338 				}
339 
340 				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
341 				    "from "
342 				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
343 				    ":\n");
344 				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
345 				action->Function = MPI2_FUNCTION_RAID_ACTION;
346 				action->Action =
347 				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
348 				action->PhysDiskNum = element->PhysDiskNum;
349 				cm->cm_desc.Default.RequestFlags =
350 				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
351 				error = mpr_request_polled(sc, &cm);
352 				if (cm != NULL)
353 					reply = (Mpi2RaidActionReply_t *)
354 					    cm->cm_reply;
355 				if (error || (reply == NULL)) {
356 					/* FIXME */
357 					/*
358 					 * If the poll returns error then we
359 					 * need to do diag reset
360 					 */
361 					printf("%s: poll for page completed "
362 					    "with error %d", __func__, error);
363 				}
364 				if (reply && (le16toh(reply->IOCStatus) &
365 				    MPI2_IOCSTATUS_MASK) !=
366 				    MPI2_IOCSTATUS_SUCCESS) {
367 					mpr_dprint(sc, MPR_ERROR, "%s: error "
368 					    "sending RaidActionPage; "
369 					    "iocstatus = 0x%x\n", __func__,
370 					    le16toh(reply->IOCStatus));
371 				}
372 
373 				if (cm)
374 					mpr_free_command(sc, cm);
375 			}
376 skip_fp_send:
377 			mpr_dprint(sc, MPR_EVENT, "Received "
378 			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
379 			    "code %x:\n", element->ReasonCode);
380 			switch (element->ReasonCode) {
381 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
382 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
383 				if (!foreign_config) {
384 					if (mprsas_volume_add(sc,
385 					    le16toh(element->VolDevHandle))) {
386 						printf("%s: failed to add RAID "
387 						    "volume with handle 0x%x\n",
388 						    __func__, le16toh(element->
389 						    VolDevHandle));
390 					}
391 				}
392 				break;
393 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
394 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
395 				/*
396 				 * Rescan after volume is deleted or removed.
397 				 */
398 				if (!foreign_config) {
399 					if (id == MPR_MAP_BAD_ID) {
400 						printf("%s: could not get ID "
401 						    "for volume with handle "
402 						    "0x%04x\n", __func__,
403 						    le16toh(element->
404 						    VolDevHandle));
405 						break;
406 					}
407 
408 					targ = &sassc->targets[id];
409 					targ->handle = 0x0;
410 					targ->encl_slot = 0x0;
411 					targ->encl_handle = 0x0;
412 					targ->encl_level_valid = 0x0;
413 					targ->encl_level = 0x0;
414 					targ->connector_name[0] = ' ';
415 					targ->connector_name[1] = ' ';
416 					targ->connector_name[2] = ' ';
417 					targ->connector_name[3] = ' ';
418 					targ->exp_dev_handle = 0x0;
419 					targ->phy_num = 0x0;
420 					targ->linkrate = 0x0;
421 					mprsas_rescan_target(sc, targ);
422 					printf("RAID target id 0x%x removed\n",
423 					    targ->tid);
424 				}
425 				break;
426 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
427 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
428 				/*
429 				 * Phys Disk of a volume has been created.  Hide
430 				 * it from the OS.
431 				 */
432 				targ = mprsas_find_target_by_handle(sassc, 0,
433 				    element->PhysDiskDevHandle);
434 				if (targ == NULL)
435 					break;
436 				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
437 				mprsas_rescan_target(sc, targ);
438 				break;
439 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
440 				/*
441 				 * Phys Disk of a volume has been deleted.
442 				 * Expose it to the OS.
443 				 */
444 				if (mprsas_add_device(sc,
445 				    le16toh(element->PhysDiskDevHandle), 0)) {
446 					printf("%s: failed to add device with "
447 					    "handle 0x%x\n", __func__,
448 					    le16toh(element->
449 					    PhysDiskDevHandle));
450 					mprsas_prepare_remove(sassc,
451 					    le16toh(element->
452 					    PhysDiskDevHandle));
453 				}
454 				break;
455 			}
456 		}
457 		/*
458 		 * refcount was incremented for this event in
459 		 * mprsas_evt_handler.  Decrement it here because the event has
460 		 * been processed.
461 		 */
462 		mprsas_startup_decrement(sassc);
463 		break;
464 	}
465 	case MPI2_EVENT_IR_VOLUME:
466 	{
467 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
468 
469 		/*
470 		 * Informational only.
471 		 */
472 		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
473 		switch (event_data->ReasonCode) {
474 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
475   			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
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_STATUS_FLAGS_CHANGED:
482   			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
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 			break;
488 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
489   			mpr_dprint(sc, MPR_EVENT, "   Volume State "
490   			    "changed from 0x%x to 0x%x for Volome with "
491  			    "handle 0x%x", le32toh(event_data->PreviousValue),
492  			    le32toh(event_data->NewValue),
493  			    le16toh(event_data->VolDevHandle));
494 				u32 state;
495 				struct mprsas_target *targ;
496 				state = le32toh(event_data->NewValue);
497 				switch (state) {
498 				case MPI2_RAID_VOL_STATE_MISSING:
499 				case MPI2_RAID_VOL_STATE_FAILED:
500 					mprsas_prepare_volume_remove(sassc,
501 					    event_data->VolDevHandle);
502 					break;
503 
504 				case MPI2_RAID_VOL_STATE_ONLINE:
505 				case MPI2_RAID_VOL_STATE_DEGRADED:
506 				case MPI2_RAID_VOL_STATE_OPTIMAL:
507 					targ =
508 					    mprsas_find_target_by_handle(sassc,
509 					    0, event_data->VolDevHandle);
510 					if (targ) {
511 						printf("%s %d: Volume handle "
512 						    "0x%x is already added \n",
513 						    __func__, __LINE__,
514 						    event_data->VolDevHandle);
515 						break;
516 					}
517 					if (mprsas_volume_add(sc,
518 					    le16toh(event_data->
519 					    VolDevHandle))) {
520 						printf("%s: failed to add RAID "
521 						    "volume with handle 0x%x\n",
522 						    __func__, le16toh(
523 						    event_data->VolDevHandle));
524 					}
525 					break;
526 				default:
527 					break;
528 				}
529 			break;
530 		default:
531 			break;
532 		}
533 		break;
534 	}
535 	case MPI2_EVENT_IR_PHYSICAL_DISK:
536 	{
537 		Mpi2EventDataIrPhysicalDisk_t *event_data =
538 		    fw_event->event_data;
539 		struct mprsas_target *targ;
540 
541 		/*
542 		 * Informational only.
543 		 */
544 		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
545 		switch (event_data->ReasonCode) {
546 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
547   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
548   			    "changed from 0x%x to 0x%x for Phys Disk Number "
549   			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
550  			    "%d", le32toh(event_data->PreviousValue),
551  			    le32toh(event_data->NewValue),
552 			    event_data->PhysDiskNum,
553  			    le16toh(event_data->PhysDiskDevHandle),
554  			    le16toh(event_data->EnclosureHandle),
555 			    le16toh(event_data->Slot));
556 			break;
557 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
558   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
559   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
560   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
561  			    le32toh(event_data->PreviousValue),
562  			    le32toh(event_data->NewValue),
563 			    event_data->PhysDiskNum,
564  			    le16toh(event_data->PhysDiskDevHandle),
565  			    le16toh(event_data->EnclosureHandle),
566 			    le16toh(event_data->Slot));
567 			break;
568 		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
569   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
570   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
571   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
572  			    le32toh(event_data->PreviousValue),
573  			    le32toh(event_data->NewValue),
574 			    event_data->PhysDiskNum,
575  			    le16toh(event_data->PhysDiskDevHandle),
576  			    le16toh(event_data->EnclosureHandle),
577 			    le16toh(event_data->Slot));
578 			switch (event_data->NewValue) {
579 				case MPI2_RAID_PD_STATE_ONLINE:
580 				case MPI2_RAID_PD_STATE_DEGRADED:
581 				case MPI2_RAID_PD_STATE_REBUILDING:
582 				case MPI2_RAID_PD_STATE_OPTIMAL:
583 				case MPI2_RAID_PD_STATE_HOT_SPARE:
584 					targ = mprsas_find_target_by_handle(
585 					    sassc, 0,
586 					    event_data->PhysDiskDevHandle);
587 					if (targ) {
588 						targ->flags |=
589 						    MPR_TARGET_FLAGS_RAID_COMPONENT;
590 						printf("%s %d: Found Target "
591 						    "for handle 0x%x.\n",
592 						    __func__, __LINE__ ,
593 						    event_data->
594 						    PhysDiskDevHandle);
595 					}
596 				break;
597 				case MPI2_RAID_PD_STATE_OFFLINE:
598 				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
599 				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
600 				default:
601 					targ = mprsas_find_target_by_handle(
602 					    sassc, 0,
603 					    event_data->PhysDiskDevHandle);
604 					if (targ) {
605 						targ->flags |=
606 					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
607 						printf("%s %d: Found Target "
608 						    "for handle 0x%x.  \n",
609 						    __func__, __LINE__ ,
610 						    event_data->
611 						    PhysDiskDevHandle);
612 					}
613 				break;
614 			}
615 		default:
616 			break;
617 		}
618 		break;
619 	}
620 	case MPI2_EVENT_IR_OPERATION_STATUS:
621 	{
622 		Mpi2EventDataIrOperationStatus_t *event_data =
623 		    fw_event->event_data;
624 
625 		/*
626 		 * Informational only.
627 		 */
628 		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
629 		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
630 		    "percent complete for Volume with handle 0x%x",
631 		    event_data->RAIDOperation, event_data->PercentComplete,
632 		    le16toh(event_data->VolDevHandle));
633 		break;
634 	}
635 	case MPI2_EVENT_TEMP_THRESHOLD:
636 	{
637 		pMpi2EventDataTemperature_t	temp_event;
638 
639 		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
640 
641 		/*
642 		 * The Temp Sensor Count must be greater than the event's Sensor
643 		 * Num to be valid.  If valid, print the temp thresholds that
644 		 * have been exceeded.
645 		 */
646 		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
647 			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
648 			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
649 			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
650 			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
651 			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
652 			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
653 			    temp_event->SensorNum);
654 			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
655 			    "%d\n", temp_event->CurrentTemperature);
656 		}
657 		break;
658 	}
659 	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
660 	{
661 		pMpi26EventDataActiveCableExcept_t	ace_event_data;
662 		ace_event_data =
663 		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
664 
665 		switch(ace_event_data->ReasonCode) {
666 		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
667 		{
668 			mpr_printf(sc, "Currently a cable with "
669 			    "ReceptacleID %d cannot be powered and device "
670 			    "connected to this active cable will not be seen. "
671 			    "This active cable requires %d mW of power.\n",
672 			    ace_event_data->ReceptacleID,
673 			    ace_event_data->ActiveCablePowerRequirement);
674 			break;
675 		}
676 		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
677 		{
678 			mpr_printf(sc, "Currently a cable with "
679 			    "ReceptacleID %d is not running at optimal speed "
680 			    "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
681 			break;
682 		}
683 		default:
684 			break;
685 		}
686 		break;
687 	}
688 	case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
689 	{
690 		pMpi26EventDataPCIeDeviceStatusChange_t	pcie_status_event_data;
691 		pcie_status_event_data =
692 		   (pMpi26EventDataPCIeDeviceStatusChange_t)fw_event->event_data;
693 
694 		switch (pcie_status_event_data->ReasonCode) {
695 		case MPI26_EVENT_PCIDEV_STAT_RC_PCIE_HOT_RESET_FAILED:
696 		{
697 			mpr_printf(sc, "PCIe Host Reset failed on DevHandle "
698 			    "0x%x\n", pcie_status_event_data->DevHandle);
699 			break;
700 		}
701 		default:
702 			break;
703 		}
704 		break;
705 	}
706 	case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
707 	{
708 		pMpi25EventDataSasDeviceDiscoveryError_t discovery_error_data;
709 		uint64_t sas_address;
710 
711 		discovery_error_data =
712 		    (pMpi25EventDataSasDeviceDiscoveryError_t)
713 		    fw_event->event_data;
714 
715 		sas_address = discovery_error_data->SASAddress.High;
716 		sas_address = (sas_address << 32) |
717 		    discovery_error_data->SASAddress.Low;
718 
719 		switch(discovery_error_data->ReasonCode) {
720 		case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
721 		{
722 			mpr_printf(sc, "SMP command failed during discovery "
723 			    "for expander with SAS Address %jx and "
724 			    "handle 0x%x.\n", sas_address,
725 			    discovery_error_data->DevHandle);
726 			break;
727 		}
728 		case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
729 		{
730 			mpr_printf(sc, "SMP command timed out during "
731 			    "discovery for expander with SAS Address %jx and "
732 			    "handle 0x%x.\n", sas_address,
733 			    discovery_error_data->DevHandle);
734 			break;
735 		}
736 		default:
737 			break;
738 		}
739 		break;
740 	}
741 	case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
742 	{
743 		MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
744 		MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
745 		uint8_t i, link_rate;
746 		uint16_t handle;
747 
748 		data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
749 		    fw_event->event_data;
750 
751 		mpr_mapping_pcie_topology_change_event(sc,
752 		    fw_event->event_data);
753 
754 		for (i = 0; i < data->NumEntries; i++) {
755 			port_entry = &data->PortEntry[i];
756 			handle = le16toh(port_entry->AttachedDevHandle);
757 			link_rate = port_entry->CurrentPortInfo &
758 			    MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
759 			switch (port_entry->PortStatus) {
760 			case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
761 				if (link_rate <
762 				    MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
763 					mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
764 					    "add PCIe device with handle 0x%x "
765 					    "with unknown link rate.\n",
766 					    __func__, handle);
767 					break;
768 				}
769 				if (mprsas_add_pcie_device(sc, handle,
770 				    link_rate)) {
771 					mpr_dprint(sc, MPR_ERROR, "%s: failed "
772 					    "to add PCIe device with handle "
773 					    "0x%x\n", __func__, handle);
774 					mprsas_prepare_remove(sassc, handle);
775 				}
776 				break;
777 			case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
778 				mprsas_prepare_remove(sassc, handle);
779 				break;
780 			case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
781 			case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
782 			case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
783 			default:
784 				break;
785 			}
786 		}
787 		/*
788 		 * refcount was incremented for this event in
789 		 * mprsas_evt_handler.  Decrement it here because the event has
790 		 * been processed.
791 		 */
792 		mprsas_startup_decrement(sassc);
793 		break;
794 	}
795 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
796 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
797 	default:
798 		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
799 		    fw_event->event);
800 		break;
801 	}
802 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
803 	    __func__, fw_event->event);
804 	mprsas_fw_event_free(sc, fw_event);
805 }
806 
807 void
808 mprsas_firmware_event_work(void *arg, int pending)
809 {
810 	struct mpr_fw_event_work *fw_event;
811 	struct mpr_softc *sc;
812 
813 	sc = (struct mpr_softc *)arg;
814 	mpr_lock(sc);
815 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
816 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
817 		mprsas_fw_work(sc, fw_event);
818 	}
819 	mpr_unlock(sc);
820 }
821 
822 static int
823 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
824 {
825 	char devstring[80];
826 	struct mprsas_softc *sassc;
827 	struct mprsas_target *targ;
828 	Mpi2ConfigReply_t mpi_reply;
829 	Mpi2SasDevicePage0_t config_page;
830 	uint64_t sas_address, parent_sas_address = 0;
831 	u32 device_info, parent_devinfo = 0;
832 	unsigned int id;
833 	int ret = 1, error = 0, i;
834 	struct mprsas_lun *lun;
835 	u8 is_SATA_SSD = 0;
836 	struct mpr_command *cm;
837 
838 	sassc = sc->sassc;
839 	mprsas_startup_increment(sassc);
840 	if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
841 	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
842 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
843 		    "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
844 		    handle, mpi_reply.IOCStatus);
845 		error = ENXIO;
846 		goto out;
847 	}
848 
849 	device_info = le32toh(config_page.DeviceInfo);
850 
851 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
852 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
853 		Mpi2ConfigReply_t tmp_mpi_reply;
854 		Mpi2SasDevicePage0_t parent_config_page;
855 
856 		if (mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
857 		    &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
858 		    le16toh(config_page.ParentDevHandle)) != 0) {
859 			mpr_dprint(sc, MPR_MAPPING|MPR_FAULT,
860 			    "Error reading parent SAS device %#x page0, "
861 			    "iocstatus= 0x%x\n",
862 			    le16toh(config_page.ParentDevHandle),
863 			    tmp_mpi_reply.IOCStatus);
864 		} else {
865 			parent_sas_address = parent_config_page.SASAddress.High;
866 			parent_sas_address = (parent_sas_address << 32) |
867 			    parent_config_page.SASAddress.Low;
868 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
869 		}
870 	}
871 	sas_address = htole32(config_page.SASAddress.High);
872 	sas_address = (sas_address << 32) | htole32(config_page.SASAddress.Low);
873 	mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address from SAS device "
874 	    "page0 = %jx\n", handle, sas_address);
875 
876 	/*
877 	 * Always get SATA Identify information because this is used to
878 	 * determine if Start/Stop Unit should be sent to the drive when the
879 	 * system is shutdown.
880 	 */
881 	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
882 		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
883 		    handle, device_info, &is_SATA_SSD);
884 		if (ret) {
885 			mpr_dprint(sc, MPR_MAPPING|MPR_ERROR,
886 			    "%s: failed to get disk type (SSD or HDD) for SATA "
887 			    "device with handle 0x%04x\n",
888 			    __func__, handle);
889 		} else {
890 			mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address "
891 			    "from SATA device = %jx\n", handle, sas_address);
892 		}
893 	}
894 
895 	/*
896 	 * use_phynum:
897 	 *  1 - use the PhyNum field as a fallback to the mapping logic
898 	 *  0 - never use the PhyNum field
899 	 * -1 - only use the PhyNum field
900 	 *
901 	 * Note that using the Phy number to map a device can cause device adds
902 	 * to fail if multiple enclosures/expanders are in the topology. For
903 	 * example, if two devices are in the same slot number in two different
904 	 * enclosures within the topology, only one of those devices will be
905 	 * added. PhyNum mapping should not be used if multiple enclosures are
906 	 * in the topology.
907 	 */
908 	id = MPR_MAP_BAD_ID;
909 	if (sc->use_phynum != -1)
910 		id = mpr_mapping_get_tid(sc, sas_address, handle);
911 	if (id == MPR_MAP_BAD_ID) {
912 		if ((sc->use_phynum == 0) ||
913 		    ((id = config_page.PhyNum) > sassc->maxtargets)) {
914 			mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
915 			    "Could not get ID for device with handle 0x%04x\n",
916 			    __FILE__, __LINE__, __func__, handle);
917 			error = ENXIO;
918 			goto out;
919 		}
920 	}
921 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
922 	    __func__, id);
923 
924 	/*
925 	 * Only do the ID check and reuse check if the target is not from a
926 	 * RAID Component. For Physical Disks of a Volume, the ID will be reused
927 	 * when a volume is deleted because the mapping entry for the PD will
928 	 * still be in the mapping table. The ID check should not be done here
929 	 * either since this PD is already being used.
930 	 */
931 	targ = &sassc->targets[id];
932 	if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
933 		if (mprsas_check_id(sassc, id) != 0) {
934 			mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
935 			    "Excluding target id %d\n", id);
936 			error = ENXIO;
937 			goto out;
938 		}
939 
940 		if (targ->handle != 0x0) {
941 			mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
942 			    "target id %d handle 0x%04x\n", id, targ->handle);
943 			error = ENXIO;
944 			goto out;
945 		}
946 	}
947 
948 	targ->devinfo = device_info;
949 	targ->devname = le32toh(config_page.DeviceName.High);
950 	targ->devname = (targ->devname << 32) |
951 	    le32toh(config_page.DeviceName.Low);
952 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
953 	targ->encl_slot = le16toh(config_page.Slot);
954 	targ->encl_level = config_page.EnclosureLevel;
955 	targ->connector_name[0] = config_page.ConnectorName[0];
956 	targ->connector_name[1] = config_page.ConnectorName[1];
957 	targ->connector_name[2] = config_page.ConnectorName[2];
958 	targ->connector_name[3] = config_page.ConnectorName[3];
959 	targ->handle = handle;
960 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
961 	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
962 	targ->parent_sasaddr = le64toh(parent_sas_address);
963 	targ->parent_devinfo = parent_devinfo;
964 	targ->tid = id;
965 	targ->linkrate = (linkrate>>4);
966 	targ->flags = 0;
967 	if (is_SATA_SSD) {
968 		targ->flags = MPR_TARGET_IS_SATA_SSD;
969 	}
970 	if ((le16toh(config_page.Flags) &
971 	    MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
972 	    (le16toh(config_page.Flags) &
973 	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
974 		targ->scsi_req_desc_type =
975 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
976 	}
977 	if (le16toh(config_page.Flags) &
978 	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
979 		targ->encl_level_valid = TRUE;
980 	}
981 	TAILQ_INIT(&targ->commands);
982 	TAILQ_INIT(&targ->timedout_commands);
983 	while (!SLIST_EMPTY(&targ->luns)) {
984 		lun = SLIST_FIRST(&targ->luns);
985 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
986 		free(lun, M_MPR);
987 	}
988 	SLIST_INIT(&targ->luns);
989 
990 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
991 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
992 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
993 	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
994 	    targ->handle, targ->encl_handle, targ->encl_slot);
995 	if (targ->encl_level_valid) {
996 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
997 		    "and connector name (%4s)\n", targ->encl_level,
998 		    targ->connector_name);
999 	}
1000 	mprsas_rescan_target(sc, targ);
1001 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1002 
1003 	/*
1004 	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
1005 	 * If so, send a Target Reset TM to the target that was just created.
1006 	 * An Abort Task TM should be used instead of a Target Reset, but that
1007 	 * would be much more difficult because targets have not been fully
1008 	 * discovered yet, and LUN's haven't been setup.  So, just reset the
1009 	 * target instead of the LUN.  The commands should complete once
1010 	 * the target has been reset.
1011 	 */
1012 	for (i = 1; i < sc->num_reqs; i++) {
1013 		cm = &sc->commands[i];
1014 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1015 			targ->timeouts++;
1016 			cm->cm_flags |= MPR_CM_FLAGS_TIMEDOUT;
1017 
1018 			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
1019 				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
1020 				    "Reset for stuck SATA identify command "
1021 				    "(cm = %p)\n", __func__, cm);
1022 				targ->tm->cm_targ = targ;
1023 				mprsas_send_reset(sc, targ->tm,
1024 				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
1025 			} else {
1026 				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
1027 				    "tm for Target Reset after SATA ID command "
1028 				    "timed out (cm %p)\n", cm);
1029 			}
1030 			/*
1031 			 * No need to check for more since the target is
1032 			 * already being reset.
1033 			 */
1034 			break;
1035 		}
1036 	}
1037 out:
1038 	mprsas_startup_decrement(sassc);
1039 	return (error);
1040 }
1041 
1042 int
1043 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
1044     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
1045 {
1046 	Mpi2SataPassthroughReply_t mpi_reply;
1047 	int i, rc, try_count;
1048 	u32 *bufferptr;
1049 	union _sata_sas_address hash_address;
1050 	struct _ata_identify_device_data ata_identify;
1051 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
1052 	u32 ioc_status;
1053 	u8 sas_status;
1054 
1055 	memset(&ata_identify, 0, sizeof(ata_identify));
1056 	memset(&mpi_reply, 0, sizeof(mpi_reply));
1057 	try_count = 0;
1058 	do {
1059 		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
1060 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
1061 		try_count++;
1062 		ioc_status = le16toh(mpi_reply.IOCStatus)
1063 		    & MPI2_IOCSTATUS_MASK;
1064 		sas_status = mpi_reply.SASStatus;
1065 		switch (ioc_status) {
1066 		case MPI2_IOCSTATUS_SUCCESS:
1067 			break;
1068 		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
1069 			/* No sense sleeping.  this error won't get better */
1070 			break;
1071 		default:
1072 			if (sc->spinup_wait_time > 0) {
1073 				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
1074 				    "after SATA ID error to wait for spinup\n",
1075 				    sc->spinup_wait_time);
1076 				msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
1077 				    "mprid", sc->spinup_wait_time * hz);
1078 			}
1079 		}
1080 	} while (((rc && (rc != EWOULDBLOCK)) ||
1081 	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
1082 	    || sas_status) && (try_count < 5));
1083 
1084 	if (rc == 0 && !ioc_status && !sas_status) {
1085 		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
1086 		    "successfully for handle = 0x%x with try_count = %d\n",
1087 		    __func__, handle, try_count);
1088 	} else {
1089 		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
1090 		    __func__, handle);
1091 		return -1;
1092 	}
1093 	/* Copy & byteswap the 40 byte model number to a buffer */
1094 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
1095 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
1096 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
1097 	}
1098 	/* Copy & byteswap the 20 byte serial number to a buffer */
1099 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
1100 		buffer[MPT2SAS_MN_LEN + i] =
1101 		    ((u8 *)ata_identify.serial_number)[i + 1];
1102 		buffer[MPT2SAS_MN_LEN + i + 1] =
1103 		    ((u8 *)ata_identify.serial_number)[i];
1104 	}
1105 	bufferptr = (u32 *)buffer;
1106 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
1107 	 * so loop through the first 56 bytes (7*8),
1108 	 * and then add in the last dword.
1109 	 */
1110 	hash_address.word.low  = 0;
1111 	hash_address.word.high = 0;
1112 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
1113 		hash_address.word.low += *bufferptr;
1114 		bufferptr++;
1115 		hash_address.word.high += *bufferptr;
1116 		bufferptr++;
1117 	}
1118 	/* Add the last dword */
1119 	hash_address.word.low += *bufferptr;
1120 	/* Make sure the hash doesn't start with 5, because it could clash
1121 	 * with a SAS address. Change 5 to a D.
1122 	 */
1123 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
1124 		hash_address.word.high |= 0x00000080;
1125 	*sas_address = (u64)hash_address.wwid[0] << 56 |
1126 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
1127 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
1128 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
1129 	    (u64)hash_address.wwid[7];
1130 	if (ata_identify.rotational_speed == 1) {
1131 		*is_SATA_SSD = 1;
1132 	}
1133 
1134 	return 0;
1135 }
1136 
1137 static int
1138 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
1139     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
1140 {
1141 	Mpi2SataPassthroughRequest_t *mpi_request;
1142 	Mpi2SataPassthroughReply_t *reply;
1143 	struct mpr_command *cm;
1144 	char *buffer;
1145 	int error = 0;
1146 
1147 	buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
1148 	if (!buffer)
1149 		return ENOMEM;
1150 
1151 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1152 		free(buffer, M_MPR);
1153 		return (EBUSY);
1154 	}
1155 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
1156 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
1157 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
1158 	mpi_request->VF_ID = 0;
1159 	mpi_request->DevHandle = htole16(handle);
1160 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1161 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1162 	mpi_request->DataLength = htole32(sz);
1163 	mpi_request->CommandFIS[0] = 0x27;
1164 	mpi_request->CommandFIS[1] = 0x80;
1165 	mpi_request->CommandFIS[2] =  (devinfo &
1166 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1167 	cm->cm_sge = &mpi_request->SGL;
1168 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1169 	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1170 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1171 	cm->cm_data = buffer;
1172 	cm->cm_length = htole32(sz);
1173 
1174 	/*
1175 	 * Use a custom handler to avoid reinit'ing the controller on timeout.
1176 	 * This fixes a problem where the FW does not send a reply sometimes
1177 	 * when a bad disk is in the topology. So, this is used to timeout the
1178 	 * command so that processing can continue normally.
1179 	 */
1180 	cm->cm_timeout_handler = mprsas_ata_id_timeout;
1181 
1182 	error = mpr_wait_command(sc, &cm, MPR_ATA_ID_TIMEOUT, CAN_SLEEP);
1183 
1184 	/* mprsas_ata_id_timeout does not reset controller */
1185 	KASSERT(cm != NULL, ("%s: surprise command freed", __func__));
1186 
1187 	reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1188 	if (error || (reply == NULL)) {
1189 		/* FIXME */
1190 		/*
1191 		 * If the request returns an error then we need to do a diag
1192 		 * reset
1193 		 */
1194 		mpr_dprint(sc, MPR_INFO|MPR_FAULT|MPR_MAPPING,
1195 		    "Request for SATA PASSTHROUGH page completed with error %d\n",
1196 		    error);
1197 		error = ENXIO;
1198 		goto out;
1199 	}
1200 	bcopy(buffer, id_buffer, sz);
1201 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1202 	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1203 	    MPI2_IOCSTATUS_SUCCESS) {
1204 		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
1205 		    "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
1206 		    handle, reply->IOCStatus);
1207 		error = ENXIO;
1208 		goto out;
1209 	}
1210 out:
1211 	/*
1212 	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1213 	 * it.  The command and buffer will be freed after we send a Target
1214 	 * Reset TM and the command comes back from the controller.
1215 	 */
1216 	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0) {
1217 		mpr_free_command(sc, cm);
1218 		free(buffer, M_MPR);
1219 	}
1220 	return (error);
1221 }
1222 
1223 /*
1224  * This is completion handler to make sure that commands and allocated
1225  * buffers get freed when timed out SATA ID commands finally complete after
1226  * we've reset the target.  In the normal case, we wait for the command to
1227  * complete.
1228  */
1229 static void
1230 mprsas_ata_id_complete(struct mpr_softc *sc, struct mpr_command *cm)
1231 {
1232 	mpr_dprint(sc, MPR_INFO, "%s ATA ID completed late cm %p sc %p\n",
1233 	    __func__, cm, sc);
1234 
1235 	free(cm->cm_data, M_MPR);
1236 	mpr_free_command(sc, cm);
1237 }
1238 
1239 static void
1240 mprsas_ata_id_timeout(struct mpr_softc *sc, struct mpr_command *cm)
1241 {
1242 
1243 	mpr_dprint(sc, MPR_INFO, "%s ATA ID command timeout cm %p sc %p\n",
1244 	    __func__, cm, sc);
1245 
1246 	/*
1247 	 * The Abort Task cannot be sent from here because the driver has not
1248 	 * completed setting up targets.  Instead, the command is flagged so
1249 	 * that special handling will be used to send the abort. Now that
1250 	 * this command has timed out, it's no longer in the queue.
1251 	 */
1252 	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1253 
1254 	/*
1255 	 * Since we will no longer be waiting for the command to complete,
1256 	 * set a completion handler to make sure we free all resources.
1257 	 */
1258 	cm->cm_complete = mprsas_ata_id_complete;
1259 }
1260 
1261 static int
1262 mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
1263 {
1264 	char devstring[80];
1265 	struct mprsas_softc *sassc;
1266 	struct mprsas_target *targ;
1267 	Mpi2ConfigReply_t mpi_reply;
1268 	Mpi26PCIeDevicePage0_t config_page;
1269 	Mpi26PCIeDevicePage2_t config_page2;
1270 	uint64_t pcie_wwid, parent_wwid = 0;
1271 	u32 device_info, parent_devinfo = 0;
1272 	unsigned int id;
1273 	int error = 0;
1274 	struct mprsas_lun *lun;
1275 
1276 	sassc = sc->sassc;
1277 	mprsas_startup_increment(sassc);
1278 	if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
1279 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1280 		printf("%s: error reading PCIe device page0\n", __func__);
1281 		error = ENXIO;
1282 		goto out;
1283 	}
1284 
1285 	device_info = le32toh(config_page.DeviceInfo);
1286 
1287 	if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
1288 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
1289 		Mpi2ConfigReply_t tmp_mpi_reply;
1290 		Mpi26PCIeDevicePage0_t parent_config_page;
1291 
1292 		if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
1293 		     &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1294 		     le16toh(config_page.ParentDevHandle)))) {
1295 			printf("%s: error reading PCIe device %#x page0\n",
1296 			    __func__, le16toh(config_page.ParentDevHandle));
1297 		} else {
1298 			parent_wwid = parent_config_page.WWID.High;
1299 			parent_wwid = (parent_wwid << 32) |
1300 			    parent_config_page.WWID.Low;
1301 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
1302 		}
1303 	}
1304 	/* TODO Check proper endianness */
1305 	pcie_wwid = config_page.WWID.High;
1306 	pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
1307 	mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
1308 	    pcie_wwid);
1309 
1310 	if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
1311 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1312 		printf("%s: error reading PCIe device page2\n", __func__);
1313 		error = ENXIO;
1314 		goto out;
1315 	}
1316 
1317 	id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
1318 	if (id == MPR_MAP_BAD_ID) {
1319 		mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
1320 		    "Could not get ID for device with handle 0x%04x\n",
1321 		    __FILE__, __LINE__, __func__, handle);
1322 		error = ENXIO;
1323 		goto out;
1324 	}
1325 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
1326 	    __func__, id);
1327 
1328 	if (mprsas_check_id(sassc, id) != 0) {
1329 		mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
1330 		    "Excluding target id %d\n", id);
1331 		error = ENXIO;
1332 		goto out;
1333 	}
1334 
1335 	mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
1336 	    pcie_wwid);
1337 	targ = &sassc->targets[id];
1338 	targ->devinfo = device_info;
1339 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
1340 	targ->encl_slot = le16toh(config_page.Slot);
1341 	targ->encl_level = config_page.EnclosureLevel;
1342 	targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
1343 	targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
1344 	targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
1345 	targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
1346 	targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
1347 	targ->MDTS = config_page2.MaximumDataTransferSize;
1348 	if (targ->is_nvme)
1349 		targ->controller_reset_timeout = config_page2.ControllerResetTO;
1350 	/*
1351 	 * Assume always TRUE for encl_level_valid because there is no valid
1352 	 * flag for PCIe.
1353 	 */
1354 	targ->encl_level_valid = TRUE;
1355 	targ->handle = handle;
1356 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
1357 	targ->sasaddr = mpr_to_u64(&config_page.WWID);
1358 	targ->parent_sasaddr = le64toh(parent_wwid);
1359 	targ->parent_devinfo = parent_devinfo;
1360 	targ->tid = id;
1361 	targ->linkrate = linkrate;
1362 	targ->flags = 0;
1363 	if ((le16toh(config_page.Flags) &
1364 	    MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) &&
1365 	    (le16toh(config_page.Flags) &
1366 	    MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
1367 		targ->scsi_req_desc_type =
1368 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
1369 	}
1370 	TAILQ_INIT(&targ->commands);
1371 	TAILQ_INIT(&targ->timedout_commands);
1372 	while (!SLIST_EMPTY(&targ->luns)) {
1373 		lun = SLIST_FIRST(&targ->luns);
1374 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1375 		free(lun, M_MPR);
1376 	}
1377 	SLIST_INIT(&targ->luns);
1378 
1379 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
1380 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
1381 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
1382 	    mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
1383 	    targ->handle, targ->encl_handle, targ->encl_slot);
1384 	if (targ->encl_level_valid) {
1385 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
1386 		    "and connector name (%4s)\n", targ->encl_level,
1387 		    targ->connector_name);
1388 	}
1389 	mprsas_rescan_target(sc, targ);
1390 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1391 
1392 out:
1393 	mprsas_startup_decrement(sassc);
1394 	return (error);
1395 }
1396 
1397 static int
1398 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1399 {
1400 	struct mprsas_softc *sassc;
1401 	struct mprsas_target *targ;
1402 	u64 wwid;
1403 	unsigned int id;
1404 	int error = 0;
1405 	struct mprsas_lun *lun;
1406 
1407 	sassc = sc->sassc;
1408 	mprsas_startup_increment(sassc);
1409 	/* wwid is endian safe */
1410 	mpr_config_get_volume_wwid(sc, handle, &wwid);
1411 	if (!wwid) {
1412 		printf("%s: invalid WWID; cannot add volume to mapping table\n",
1413 		    __func__);
1414 		error = ENXIO;
1415 		goto out;
1416 	}
1417 
1418 	id = mpr_mapping_get_raid_tid(sc, wwid, handle);
1419 	if (id == MPR_MAP_BAD_ID) {
1420 		printf("%s: could not get ID for volume with handle 0x%04x and "
1421 		    "WWID 0x%016llx\n", __func__, handle,
1422 		    (unsigned long long)wwid);
1423 		error = ENXIO;
1424 		goto out;
1425 	}
1426 
1427 	targ = &sassc->targets[id];
1428 	targ->tid = id;
1429 	targ->handle = handle;
1430 	targ->devname = wwid;
1431 	TAILQ_INIT(&targ->commands);
1432 	TAILQ_INIT(&targ->timedout_commands);
1433 	while (!SLIST_EMPTY(&targ->luns)) {
1434 		lun = SLIST_FIRST(&targ->luns);
1435 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1436 		free(lun, M_MPR);
1437 	}
1438 	SLIST_INIT(&targ->luns);
1439 	mprsas_rescan_target(sc, targ);
1440 	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1441 	    targ->tid, wwid);
1442 out:
1443 	mprsas_startup_decrement(sassc);
1444 	return (error);
1445 }
1446 
1447 /**
1448  * mprsas_SSU_to_SATA_devices
1449  * @sc: per adapter object
1450  *
1451  * Looks through the target list and issues a StartStopUnit SCSI command to each
1452  * SATA direct-access device.  This helps to ensure that data corruption is
1453  * avoided when the system is being shut down.  This must be called after the IR
1454  * System Shutdown RAID Action is sent if in IR mode.
1455  *
1456  * Return nothing.
1457  */
1458 static void
1459 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto)
1460 {
1461 	struct mprsas_softc *sassc = sc->sassc;
1462 	union ccb *ccb;
1463 	path_id_t pathid = cam_sim_path(sassc->sim);
1464 	target_id_t targetid;
1465 	struct mprsas_target *target;
1466 	char path_str[64];
1467 	int timeout;
1468 
1469 	mpr_lock(sc);
1470 
1471 	/*
1472 	 * For each target, issue a StartStopUnit command to stop the device.
1473 	 */
1474 	sc->SSU_started = TRUE;
1475 	sc->SSU_refcount = 0;
1476 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1477 		target = &sassc->targets[targetid];
1478 		if (target->handle == 0x0) {
1479 			continue;
1480 		}
1481 
1482 		/*
1483 		 * The stop_at_shutdown flag will be set if this device is
1484 		 * a SATA direct-access end device.
1485 		 */
1486 		if (target->stop_at_shutdown) {
1487 			ccb = xpt_alloc_ccb_nowait();
1488 			if (ccb == NULL) {
1489 				mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
1490 				    "to stop unit.\n");
1491 				return;
1492 			}
1493 
1494 			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1495 			    pathid, targetid, CAM_LUN_WILDCARD) !=
1496 			    CAM_REQ_CMP) {
1497 				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1498 				    "path to stop unit.\n");
1499 				xpt_free_ccb(ccb);
1500 				return;
1501 			}
1502 			xpt_path_string(ccb->ccb_h.path, path_str,
1503 			    sizeof(path_str));
1504 
1505 			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1506 			    "handle %d\n", path_str, target->handle);
1507 
1508 			/*
1509 			 * Issue a START STOP UNIT command for the target.
1510 			 * Increment the SSU counter to be used to count the
1511 			 * number of required replies.
1512 			 */
1513 			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1514 			sc->SSU_refcount++;
1515 			ccb->ccb_h.target_id =
1516 			    xpt_path_target_id(ccb->ccb_h.path);
1517 			ccb->ccb_h.ppriv_ptr1 = sassc;
1518 			scsi_start_stop(&ccb->csio,
1519 			    /*retries*/0,
1520 			    mprsas_stop_unit_done,
1521 			    MSG_SIMPLE_Q_TAG,
1522 			    /*start*/FALSE,
1523 			    /*load/eject*/0,
1524 			    /*immediate*/FALSE,
1525 			    MPR_SENSE_LEN,
1526 			    /*timeout*/10000);
1527 			xpt_action(ccb);
1528 		}
1529 	}
1530 
1531 	mpr_unlock(sc);
1532 
1533 	/*
1534 	 * Timeout after 60 seconds by default or 10 seconds if howto has
1535 	 * RB_NOSYNC set which indicates we're likely handling a panic.
1536 	 */
1537 	timeout = 600;
1538 	if (howto & RB_NOSYNC)
1539 		timeout = 100;
1540 
1541 	/*
1542 	 * Wait until all of the SSU commands have completed or time
1543 	 * has expired. Pause for 100ms each time through.  If any
1544 	 * command times out, the target will be reset in the SCSI
1545 	 * command timeout routine.
1546 	 */
1547 	while (sc->SSU_refcount > 0) {
1548 		pause("mprwait", hz/10);
1549 		if (SCHEDULER_STOPPED())
1550 			xpt_sim_poll(sassc->sim);
1551 
1552 		if (--timeout == 0) {
1553 			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1554 			    "for SSU commands to complete.\n");
1555 			break;
1556 		}
1557 	}
1558 }
1559 
1560 static void
1561 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1562 {
1563 	struct mprsas_softc *sassc;
1564 	char path_str[64];
1565 
1566 	if (done_ccb == NULL)
1567 		return;
1568 
1569 	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1570 
1571 	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1572 	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1573 	    path_str);
1574 
1575 	/*
1576 	 * Nothing more to do except free the CCB and path.  If the command
1577 	 * timed out, an abort reset, then target reset will be issued during
1578 	 * the SCSI Command process.
1579 	 */
1580 	xpt_free_path(done_ccb->ccb_h.path);
1581 	xpt_free_ccb(done_ccb);
1582 }
1583 
1584 /**
1585  * mprsas_ir_shutdown - IR shutdown notification
1586  * @sc: per adapter object
1587  *
1588  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1589  * the host system is shutting down.
1590  *
1591  * Return nothing.
1592  */
1593 void
1594 mprsas_ir_shutdown(struct mpr_softc *sc, int howto)
1595 {
1596 	u16 volume_mapping_flags;
1597 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1598 	struct dev_mapping_table *mt_entry;
1599 	u32 start_idx, end_idx;
1600 	unsigned int id, found_volume = 0;
1601 	struct mpr_command *cm;
1602 	Mpi2RaidActionRequest_t	*action;
1603 	target_id_t targetid;
1604 	struct mprsas_target *target;
1605 
1606 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1607 
1608 	/* is IR firmware build loaded? */
1609 	if (!sc->ir_firmware)
1610 		goto out;
1611 
1612 	/* are there any volumes?  Look at IR target IDs. */
1613 	// TODO-later, this should be looked up in the RAID config structure
1614 	// when it is implemented.
1615 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1616 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1617 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1618 		start_idx = 0;
1619 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1620 			start_idx = 1;
1621 	} else
1622 		start_idx = sc->max_devices - sc->max_volumes;
1623 	end_idx = start_idx + sc->max_volumes - 1;
1624 
1625 	for (id = start_idx; id < end_idx; id++) {
1626 		mt_entry = &sc->mapping_table[id];
1627 		if ((mt_entry->physical_id != 0) &&
1628 		    (mt_entry->missing_count == 0)) {
1629 			found_volume = 1;
1630 			break;
1631 		}
1632 	}
1633 
1634 	if (!found_volume)
1635 		goto out;
1636 
1637 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1638 		printf("%s: command alloc failed\n", __func__);
1639 		goto out;
1640 	}
1641 
1642 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1643 	action->Function = MPI2_FUNCTION_RAID_ACTION;
1644 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1645 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1646 	mpr_lock(sc);
1647 	mpr_wait_command(sc, &cm, 5, CAN_SLEEP);
1648 	mpr_unlock(sc);
1649 
1650 	/*
1651 	 * Don't check for reply, just leave.
1652 	 */
1653 	if (cm)
1654 		mpr_free_command(sc, cm);
1655 
1656 out:
1657 	/*
1658 	 * All of the targets must have the correct value set for
1659 	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1660 	 *
1661 	 * The possible values for the 'enable_ssu' variable are:
1662 	 * 0: disable to SSD and HDD
1663 	 * 1: disable only to HDD (default)
1664 	 * 2: disable only to SSD
1665 	 * 3: enable to SSD and HDD
1666 	 * anything else will default to 1.
1667 	 */
1668 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1669 		target = &sc->sassc->targets[targetid];
1670 		if (target->handle == 0x0) {
1671 			continue;
1672 		}
1673 
1674 		if (target->supports_SSU) {
1675 			switch (sc->enable_ssu) {
1676 			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1677 				target->stop_at_shutdown = FALSE;
1678 				break;
1679 			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1680 				target->stop_at_shutdown = TRUE;
1681 				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1682 					target->stop_at_shutdown = FALSE;
1683 				}
1684 				break;
1685 			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1686 				target->stop_at_shutdown = TRUE;
1687 				break;
1688 			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1689 			default:
1690 				target->stop_at_shutdown = TRUE;
1691 				if ((target->flags &
1692 				    MPR_TARGET_IS_SATA_SSD) == 0) {
1693 					target->stop_at_shutdown = FALSE;
1694 				}
1695 				break;
1696 			}
1697 		}
1698 	}
1699 	mprsas_SSU_to_SATA_devices(sc, howto);
1700 }
1701