xref: /freebsd/sys/dev/mpr/mpr_sas_lsi.c (revision 1b99d52f261bfacfb9bb149d33ed6444364ac219)
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/queue.h>
50 #include <sys/kthread.h>
51 #include <sys/taskqueue.h>
52 #include <sys/sbuf.h>
53 
54 #include <machine/bus.h>
55 #include <machine/resource.h>
56 #include <sys/rman.h>
57 
58 #include <machine/stdarg.h>
59 
60 #include <cam/cam.h>
61 #include <cam/cam_ccb.h>
62 #include <cam/cam_debug.h>
63 #include <cam/cam_sim.h>
64 #include <cam/cam_xpt_sim.h>
65 #include <cam/cam_xpt_periph.h>
66 #include <cam/cam_periph.h>
67 #include <cam/scsi/scsi_all.h>
68 #include <cam/scsi/scsi_message.h>
69 
70 #include <dev/mpr/mpi/mpi2_type.h>
71 #include <dev/mpr/mpi/mpi2.h>
72 #include <dev/mpr/mpi/mpi2_ioc.h>
73 #include <dev/mpr/mpi/mpi2_sas.h>
74 #include <dev/mpr/mpi/mpi2_pci.h>
75 #include <dev/mpr/mpi/mpi2_cnfg.h>
76 #include <dev/mpr/mpi/mpi2_init.h>
77 #include <dev/mpr/mpi/mpi2_raid.h>
78 #include <dev/mpr/mpi/mpi2_tool.h>
79 #include <dev/mpr/mpr_ioctl.h>
80 #include <dev/mpr/mprvar.h>
81 #include <dev/mpr/mpr_table.h>
82 #include <dev/mpr/mpr_sas.h>
83 
84 /* For Hashed SAS Address creation for SATA Drives */
85 #define MPT2SAS_SN_LEN 20
86 #define MPT2SAS_MN_LEN 40
87 
88 struct mpr_fw_event_work {
89 	u16			event;
90 	void			*event_data;
91 	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
92 };
93 
94 union _sata_sas_address {
95 	u8 wwid[8];
96 	struct {
97 		u32 high;
98 		u32 low;
99 	} word;
100 };
101 
102 /*
103  * define the IDENTIFY DEVICE structure
104  */
105 struct _ata_identify_device_data {
106 	u16 reserved1[10];	/* 0-9 */
107 	u16 serial_number[10];	/* 10-19 */
108 	u16 reserved2[7];	/* 20-26 */
109 	u16 model_number[20];	/* 27-46*/
110 	u16 reserved3[170];	/* 47-216 */
111 	u16 rotational_speed;	/* 217 */
112 	u16 reserved4[38];	/* 218-255 */
113 };
114 static u32 event_count;
115 static void mprsas_fw_work(struct mpr_softc *sc,
116     struct mpr_fw_event_work *fw_event);
117 static void mprsas_fw_event_free(struct mpr_softc *,
118     struct mpr_fw_event_work *);
119 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
120 static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
121     u8 linkrate);
122 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
123     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
124     u32 devinfo);
125 static void mprsas_ata_id_timeout(void *data);
126 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
127     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
128 static int mprsas_volume_add(struct mpr_softc *sc,
129     u16 handle);
130 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc);
131 static void mprsas_stop_unit_done(struct cam_periph *periph,
132     union ccb *done_ccb);
133 
134 void
135 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
136     MPI2_EVENT_NOTIFICATION_REPLY *event)
137 {
138 	struct mpr_fw_event_work *fw_event;
139 	u16 sz;
140 
141 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
142 	mpr_print_evt_sas(sc, event);
143 	mprsas_record_event(sc, event);
144 
145 	fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
146 	     M_ZERO|M_NOWAIT);
147 	if (!fw_event) {
148 		printf("%s: allocate failed for fw_event\n", __func__);
149 		return;
150 	}
151 	sz = le16toh(event->EventDataLength) * 4;
152 	fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
153 	if (!fw_event->event_data) {
154 		printf("%s: allocate failed for event_data\n", __func__);
155 		free(fw_event, M_MPR);
156 		return;
157 	}
158 
159 	bcopy(event->EventData, fw_event->event_data, sz);
160 	fw_event->event = event->Event;
161 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
162 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
163 	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
164 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
165 	    sc->track_mapping_events)
166 		sc->pending_map_events++;
167 
168 	/*
169 	 * When wait_for_port_enable flag is set, make sure that all the events
170 	 * are processed. Increment the startup_refcount and decrement it after
171 	 * events are processed.
172 	 */
173 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
174 	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
175 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
176 	    sc->wait_for_port_enable)
177 		mprsas_startup_increment(sc->sassc);
178 
179 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
180 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
181 }
182 
183 static void
184 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
185 {
186 
187 	free(fw_event->event_data, M_MPR);
188 	free(fw_event, M_MPR);
189 }
190 
191 /**
192  * _mpr_fw_work - delayed task for processing firmware events
193  * @sc: per adapter object
194  * @fw_event: The fw_event_work object
195  * Context: user.
196  *
197  * Return nothing.
198  */
199 static void
200 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
201 {
202 	struct mprsas_softc *sassc;
203 	sassc = sc->sassc;
204 
205 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
206 	    event_count++, __func__, fw_event->event);
207 	switch (fw_event->event) {
208 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
209 	{
210 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
211 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
212 		uint8_t i;
213 
214 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
215 		    fw_event->event_data;
216 
217 		mpr_mapping_topology_change_event(sc, fw_event->event_data);
218 
219 		for (i = 0; i < data->NumEntries; i++) {
220 			phy = &data->PHY[i];
221 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
222 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
223 				if (mprsas_add_device(sc,
224 				    le16toh(phy->AttachedDevHandle),
225 				    phy->LinkRate)) {
226 					mpr_dprint(sc, MPR_ERROR, "%s: "
227 					    "failed to add device with handle "
228 					    "0x%x\n", __func__,
229 					    le16toh(phy->AttachedDevHandle));
230 					mprsas_prepare_remove(sassc, le16toh(
231 					    phy->AttachedDevHandle));
232 				}
233 				break;
234 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
235 				mprsas_prepare_remove(sassc, le16toh(
236 				    phy->AttachedDevHandle));
237 				break;
238 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
239 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
240 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
241 			default:
242 				break;
243 			}
244 		}
245 		/*
246 		 * refcount was incremented for this event in
247 		 * mprsas_evt_handler.  Decrement it here because the event has
248 		 * been processed.
249 		 */
250 		mprsas_startup_decrement(sassc);
251 		break;
252 	}
253 	case MPI2_EVENT_SAS_DISCOVERY:
254 	{
255 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
256 
257 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
258 
259 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
260 			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
261 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
262 			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
263 			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
264 			mprsas_discovery_end(sassc);
265 		}
266 		break;
267 	}
268 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
269 	{
270 		Mpi2EventDataSasEnclDevStatusChange_t *data;
271 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
272 		    fw_event->event_data;
273 		mpr_mapping_enclosure_dev_status_change_event(sc,
274 		    fw_event->event_data);
275 		break;
276 	}
277 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
278 	{
279 		Mpi2EventIrConfigElement_t *element;
280 		int i;
281 		u8 foreign_config, reason;
282 		u16 elementType;
283 		Mpi2EventDataIrConfigChangeList_t *event_data;
284 		struct mprsas_target *targ;
285 		unsigned int id;
286 
287 		event_data = fw_event->event_data;
288 		foreign_config = (le32toh(event_data->Flags) &
289 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
290 
291 		element =
292 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
293 		id = mpr_mapping_get_raid_tid_from_handle(sc,
294 		    element->VolDevHandle);
295 
296 		mpr_mapping_ir_config_change_event(sc, event_data);
297 		for (i = 0; i < event_data->NumElements; i++, element++) {
298 			reason = element->ReasonCode;
299 			elementType = le16toh(element->ElementFlags) &
300 			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
301 			/*
302 			 * check for element type of Phys Disk or Hot Spare
303 			 */
304 			if ((elementType !=
305 			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
306 			    && (elementType !=
307 			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
308 				// do next element
309 				goto skip_fp_send;
310 
311 			/*
312 			 * check for reason of Hide, Unhide, PD Created, or PD
313 			 * Deleted
314 			 */
315 			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
316 			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
317 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
318 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
319 				goto skip_fp_send;
320 
321 			// check for a reason of Hide or PD Created
322 			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
323 			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
324 			{
325 				// build RAID Action message
326 				Mpi2RaidActionRequest_t	*action;
327 				Mpi2RaidActionReply_t *reply;
328 				struct mpr_command *cm;
329 				int error = 0;
330 				if ((cm = mpr_alloc_command(sc)) == NULL) {
331 					printf("%s: command alloc failed\n",
332 					    __func__);
333 					return;
334 				}
335 
336 				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
337 				    "from "
338 				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
339 				    ":\n");
340 				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
341 				action->Function = MPI2_FUNCTION_RAID_ACTION;
342 				action->Action =
343 				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
344 				action->PhysDiskNum = element->PhysDiskNum;
345 				cm->cm_desc.Default.RequestFlags =
346 				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
347 				error = mpr_request_polled(sc, cm);
348 				reply = (Mpi2RaidActionReply_t *)cm->cm_reply;
349 				if (error || (reply == NULL)) {
350 					/* FIXME */
351 					/*
352 					 * If the poll returns error then we
353 					 * need to do diag reset
354 					 */
355 					printf("%s: poll for page completed "
356 					    "with error %d", __func__, error);
357 				}
358 				if (reply && (le16toh(reply->IOCStatus) &
359 				    MPI2_IOCSTATUS_MASK) !=
360 				    MPI2_IOCSTATUS_SUCCESS) {
361 					mpr_dprint(sc, MPR_ERROR, "%s: error "
362 					    "sending RaidActionPage; "
363 					    "iocstatus = 0x%x\n", __func__,
364 					    le16toh(reply->IOCStatus));
365 				}
366 
367 				if (cm)
368 					mpr_free_command(sc, cm);
369 			}
370 skip_fp_send:
371 			mpr_dprint(sc, MPR_EVENT, "Received "
372 			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
373 			    "code %x:\n", element->ReasonCode);
374 			switch (element->ReasonCode) {
375 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
376 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
377 				if (!foreign_config) {
378 					if (mprsas_volume_add(sc,
379 					    le16toh(element->VolDevHandle))) {
380 						printf("%s: failed to add RAID "
381 						    "volume with handle 0x%x\n",
382 						    __func__, le16toh(element->
383 						    VolDevHandle));
384 					}
385 				}
386 				break;
387 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
388 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
389 				/*
390 				 * Rescan after volume is deleted or removed.
391 				 */
392 				if (!foreign_config) {
393 					if (id == MPR_MAP_BAD_ID) {
394 						printf("%s: could not get ID "
395 						    "for volume with handle "
396 						    "0x%04x\n", __func__,
397 						    le16toh(element->
398 						    VolDevHandle));
399 						break;
400 					}
401 
402 					targ = &sassc->targets[id];
403 					targ->handle = 0x0;
404 					targ->encl_slot = 0x0;
405 					targ->encl_handle = 0x0;
406 					targ->encl_level_valid = 0x0;
407 					targ->encl_level = 0x0;
408 					targ->connector_name[0] = ' ';
409 					targ->connector_name[1] = ' ';
410 					targ->connector_name[2] = ' ';
411 					targ->connector_name[3] = ' ';
412 					targ->exp_dev_handle = 0x0;
413 					targ->phy_num = 0x0;
414 					targ->linkrate = 0x0;
415 					mprsas_rescan_target(sc, targ);
416 					printf("RAID target id 0x%x removed\n",
417 					    targ->tid);
418 				}
419 				break;
420 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
421 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
422 				/*
423 				 * Phys Disk of a volume has been created.  Hide
424 				 * it from the OS.
425 				 */
426 				targ = mprsas_find_target_by_handle(sassc, 0,
427 				    element->PhysDiskDevHandle);
428 				if (targ == NULL)
429 					break;
430 				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
431 				mprsas_rescan_target(sc, targ);
432 				break;
433 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
434 				/*
435 				 * Phys Disk of a volume has been deleted.
436 				 * Expose it to the OS.
437 				 */
438 				if (mprsas_add_device(sc,
439 				    le16toh(element->PhysDiskDevHandle), 0)) {
440 					printf("%s: failed to add device with "
441 					    "handle 0x%x\n", __func__,
442 					    le16toh(element->
443 					    PhysDiskDevHandle));
444 					mprsas_prepare_remove(sassc,
445 					    le16toh(element->
446 					    PhysDiskDevHandle));
447 				}
448 				break;
449 			}
450 		}
451 		/*
452 		 * refcount was incremented for this event in
453 		 * mprsas_evt_handler.  Decrement it here because the event has
454 		 * been processed.
455 		 */
456 		mprsas_startup_decrement(sassc);
457 		break;
458 	}
459 	case MPI2_EVENT_IR_VOLUME:
460 	{
461 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
462 
463 		/*
464 		 * Informational only.
465 		 */
466 		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
467 		switch (event_data->ReasonCode) {
468 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
469   			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
470   			    "changed from 0x%x to 0x%x for Volome with "
471  			    "handle 0x%x", le32toh(event_data->PreviousValue),
472  			    le32toh(event_data->NewValue),
473  			    le16toh(event_data->VolDevHandle));
474 			break;
475 		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
476   			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
477   			    "changed from 0x%x to 0x%x for Volome with "
478  			    "handle 0x%x", le32toh(event_data->PreviousValue),
479  			    le32toh(event_data->NewValue),
480  			    le16toh(event_data->VolDevHandle));
481 			break;
482 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
483   			mpr_dprint(sc, MPR_EVENT, "   Volume State "
484   			    "changed from 0x%x to 0x%x for Volome with "
485  			    "handle 0x%x", le32toh(event_data->PreviousValue),
486  			    le32toh(event_data->NewValue),
487  			    le16toh(event_data->VolDevHandle));
488 				u32 state;
489 				struct mprsas_target *targ;
490 				state = le32toh(event_data->NewValue);
491 				switch (state) {
492 				case MPI2_RAID_VOL_STATE_MISSING:
493 				case MPI2_RAID_VOL_STATE_FAILED:
494 					mprsas_prepare_volume_remove(sassc,
495 					    event_data->VolDevHandle);
496 					break;
497 
498 				case MPI2_RAID_VOL_STATE_ONLINE:
499 				case MPI2_RAID_VOL_STATE_DEGRADED:
500 				case MPI2_RAID_VOL_STATE_OPTIMAL:
501 					targ =
502 					    mprsas_find_target_by_handle(sassc,
503 					    0, event_data->VolDevHandle);
504 					if (targ) {
505 						printf("%s %d: Volume handle "
506 						    "0x%x is already added \n",
507 						    __func__, __LINE__,
508 						    event_data->VolDevHandle);
509 						break;
510 					}
511 					if (mprsas_volume_add(sc,
512 					    le16toh(event_data->
513 					    VolDevHandle))) {
514 						printf("%s: failed to add RAID "
515 						    "volume with handle 0x%x\n",
516 						    __func__, le16toh(
517 						    event_data->VolDevHandle));
518 					}
519 					break;
520 				default:
521 					break;
522 				}
523 			break;
524 		default:
525 			break;
526 		}
527 		break;
528 	}
529 	case MPI2_EVENT_IR_PHYSICAL_DISK:
530 	{
531 		Mpi2EventDataIrPhysicalDisk_t *event_data =
532 		    fw_event->event_data;
533 		struct mprsas_target *targ;
534 
535 		/*
536 		 * Informational only.
537 		 */
538 		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
539 		switch (event_data->ReasonCode) {
540 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
541   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
542   			    "changed from 0x%x to 0x%x for Phys Disk Number "
543   			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
544  			    "%d", le32toh(event_data->PreviousValue),
545  			    le32toh(event_data->NewValue),
546 			    event_data->PhysDiskNum,
547  			    le16toh(event_data->PhysDiskDevHandle),
548  			    le16toh(event_data->EnclosureHandle),
549 			    le16toh(event_data->Slot));
550 			break;
551 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
552   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
553   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
554   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
555  			    le32toh(event_data->PreviousValue),
556  			    le32toh(event_data->NewValue),
557 			    event_data->PhysDiskNum,
558  			    le16toh(event_data->PhysDiskDevHandle),
559  			    le16toh(event_data->EnclosureHandle),
560 			    le16toh(event_data->Slot));
561 			break;
562 		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
563   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
564   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
565   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
566  			    le32toh(event_data->PreviousValue),
567  			    le32toh(event_data->NewValue),
568 			    event_data->PhysDiskNum,
569  			    le16toh(event_data->PhysDiskDevHandle),
570  			    le16toh(event_data->EnclosureHandle),
571 			    le16toh(event_data->Slot));
572 			switch (event_data->NewValue) {
573 				case MPI2_RAID_PD_STATE_ONLINE:
574 				case MPI2_RAID_PD_STATE_DEGRADED:
575 				case MPI2_RAID_PD_STATE_REBUILDING:
576 				case MPI2_RAID_PD_STATE_OPTIMAL:
577 				case MPI2_RAID_PD_STATE_HOT_SPARE:
578 					targ = mprsas_find_target_by_handle(
579 					    sassc, 0,
580 					    event_data->PhysDiskDevHandle);
581 					if (targ) {
582 						targ->flags |=
583 						    MPR_TARGET_FLAGS_RAID_COMPONENT;
584 						printf("%s %d: Found Target "
585 						    "for handle 0x%x.\n",
586 						    __func__, __LINE__ ,
587 						    event_data->
588 						    PhysDiskDevHandle);
589 					}
590 				break;
591 				case MPI2_RAID_PD_STATE_OFFLINE:
592 				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
593 				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
594 				default:
595 					targ = mprsas_find_target_by_handle(
596 					    sassc, 0,
597 					    event_data->PhysDiskDevHandle);
598 					if (targ) {
599 						targ->flags |=
600 					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
601 						printf("%s %d: Found Target "
602 						    "for handle 0x%x.  \n",
603 						    __func__, __LINE__ ,
604 						    event_data->
605 						    PhysDiskDevHandle);
606 					}
607 				break;
608 			}
609 		default:
610 			break;
611 		}
612 		break;
613 	}
614 	case MPI2_EVENT_IR_OPERATION_STATUS:
615 	{
616 		Mpi2EventDataIrOperationStatus_t *event_data =
617 		    fw_event->event_data;
618 
619 		/*
620 		 * Informational only.
621 		 */
622 		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
623 		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
624 		    "percent complete for Volume with handle 0x%x",
625 		    event_data->RAIDOperation, event_data->PercentComplete,
626 		    le16toh(event_data->VolDevHandle));
627 		break;
628 	}
629 	case MPI2_EVENT_TEMP_THRESHOLD:
630 	{
631 		pMpi2EventDataTemperature_t	temp_event;
632 
633 		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
634 
635 		/*
636 		 * The Temp Sensor Count must be greater than the event's Sensor
637 		 * Num to be valid.  If valid, print the temp thresholds that
638 		 * have been exceeded.
639 		 */
640 		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
641 			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
642 			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
643 			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
644 			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
645 			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
646 			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
647 			    temp_event->SensorNum);
648 			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
649 			    "%d\n", temp_event->CurrentTemperature);
650 		}
651 		break;
652 	}
653 	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
654 	{
655 		pMpi26EventDataActiveCableExcept_t	ace_event_data;
656 		ace_event_data =
657 		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
658 
659 		switch(ace_event_data->ReasonCode) {
660 		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
661 		{
662 			mpr_printf(sc, "Currently a cable with "
663 			    "ReceptacleID %d cannot be powered and device "
664 			    "connected to this active cable will not be seen. "
665 			    "This active cable requires %d mW of power.\n",
666 			    ace_event_data->ReceptacleID,
667 			    ace_event_data->ActiveCablePowerRequirement);
668 			break;
669 		}
670 		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
671 		{
672 			mpr_printf(sc, "Currently a cable with "
673 			    "ReceptacleID %d is not running at optimal speed "
674 			    "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
675 			break;
676 		}
677 		default:
678 			break;
679 		}
680 		break;
681 	}
682 	case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
683 	{
684 		MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
685 		MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
686 		uint8_t i, link_rate;
687 		uint16_t handle;
688 
689 		data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
690 		    fw_event->event_data;
691 
692 		mpr_mapping_pcie_topology_change_event(sc,
693 		    fw_event->event_data);
694 
695 		for (i = 0; i < data->NumEntries; i++) {
696 			port_entry = &data->PortEntry[i];
697 			handle = le16toh(port_entry->AttachedDevHandle);
698 			link_rate = port_entry->CurrentPortInfo &
699 			    MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
700 			switch (port_entry->PortStatus) {
701 			case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
702 				if (link_rate <
703 				    MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
704 					mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
705 					    "add PCIe device with handle 0x%x "
706 					    "with unknown link rate.\n",
707 					    __func__, handle);
708 					break;
709 				}
710 				if (mprsas_add_pcie_device(sc, handle,
711 				    link_rate)) {
712 					mpr_dprint(sc, MPR_ERROR, "%s: failed "
713 					    "to add PCIe device with handle "
714 					    "0x%x\n", __func__, handle);
715 					mprsas_prepare_remove(sassc, handle);
716 				}
717 				break;
718 			case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
719 				mprsas_prepare_remove(sassc, handle);
720 				break;
721 			case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
722 			case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
723 			case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
724 			default:
725 				break;
726 			}
727 		}
728 		/*
729 		 * refcount was incremented for this event in
730 		 * mprsas_evt_handler.  Decrement it here because the event has
731 		 * been processed.
732 		 */
733 		mprsas_startup_decrement(sassc);
734 		break;
735 	}
736 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
737 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
738 	default:
739 		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
740 		    fw_event->event);
741 		break;
742 
743 	}
744 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
745 	    __func__, fw_event->event);
746 	mprsas_fw_event_free(sc, fw_event);
747 }
748 
749 void
750 mprsas_firmware_event_work(void *arg, int pending)
751 {
752 	struct mpr_fw_event_work *fw_event;
753 	struct mpr_softc *sc;
754 
755 	sc = (struct mpr_softc *)arg;
756 	mpr_lock(sc);
757 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
758 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
759 		mprsas_fw_work(sc, fw_event);
760 	}
761 	mpr_unlock(sc);
762 }
763 
764 static int
765 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
766 {
767 	char devstring[80];
768 	struct mprsas_softc *sassc;
769 	struct mprsas_target *targ;
770 	Mpi2ConfigReply_t mpi_reply;
771 	Mpi2SasDevicePage0_t config_page;
772 	uint64_t sas_address, parent_sas_address = 0;
773 	u32 device_info, parent_devinfo = 0;
774 	unsigned int id;
775 	int ret = 1, error = 0, i;
776 	struct mprsas_lun *lun;
777 	u8 is_SATA_SSD = 0;
778 	struct mpr_command *cm;
779 
780 	sassc = sc->sassc;
781 	mprsas_startup_increment(sassc);
782 	if ((mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
783 	     MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
784 		printf("%s: error reading SAS device page0\n", __func__);
785 		error = ENXIO;
786 		goto out;
787 	}
788 
789 	device_info = le32toh(config_page.DeviceInfo);
790 
791 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
792 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
793 		Mpi2ConfigReply_t tmp_mpi_reply;
794 		Mpi2SasDevicePage0_t parent_config_page;
795 
796 		if ((mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
797 		     &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
798 		     le16toh(config_page.ParentDevHandle)))) {
799 			printf("%s: error reading SAS device %#x page0\n",
800 			    __func__, le16toh(config_page.ParentDevHandle));
801 		} else {
802 			parent_sas_address = parent_config_page.SASAddress.High;
803 			parent_sas_address = (parent_sas_address << 32) |
804 			    parent_config_page.SASAddress.Low;
805 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
806 		}
807 	}
808 	/* TODO Check proper endianness */
809 	sas_address = config_page.SASAddress.High;
810 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
811 	mpr_dprint(sc, MPR_INFO, "SAS Address from SAS device page0 = %jx\n",
812 	    sas_address);
813 
814 	/*
815 	 * Always get SATA Identify information because this is used to
816 	 * determine if Start/Stop Unit should be sent to the drive when the
817 	 * system is shutdown.
818 	 */
819 	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
820 		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
821 		    handle, device_info, &is_SATA_SSD);
822 		if (ret) {
823 			mpr_dprint(sc, MPR_ERROR, "%s: failed to get disk type "
824 			    "(SSD or HDD) for SATA device with handle 0x%04x\n",
825 			    __func__, handle);
826 		} else {
827 			mpr_dprint(sc, MPR_INFO, "SAS Address from SATA "
828 			    "device = %jx\n", sas_address);
829 		}
830 	}
831 
832 	/*
833 	 * use_phynum:
834 	 *  1 - use the PhyNum field as a fallback to the mapping logic
835 	 *  0 - never use the PhyNum field
836 	 * -1 - only use the PhyNum field
837 	 *
838 	 * Note that using the Phy number to map a device can cause device adds
839 	 * to fail if multiple enclosures/expanders are in the topology. For
840 	 * example, if two devices are in the same slot number in two different
841 	 * enclosures within the topology, only one of those devices will be
842 	 * added. PhyNum mapping should not be used if multiple enclosures are
843 	 * in the topology.
844 	 */
845 	id = MPR_MAP_BAD_ID;
846 	if (sc->use_phynum != -1)
847 		id = mpr_mapping_get_tid(sc, sas_address, handle);
848 	if (id == MPR_MAP_BAD_ID) {
849 		if ((sc->use_phynum == 0) ||
850 		    ((id = config_page.PhyNum) > sassc->maxtargets)) {
851 			mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
852 			    "Could not get ID for device with handle 0x%04x\n",
853 			    __FILE__, __LINE__, __func__, handle);
854 			error = ENXIO;
855 			goto out;
856 		}
857 	}
858 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
859 	    __func__, id);
860 
861 	/*
862 	 * Only do the ID check and reuse check if the target is not from a
863 	 * RAID Component. For Physical Disks of a Volume, the ID will be reused
864 	 * when a volume is deleted because the mapping entry for the PD will
865 	 * still be in the mapping table. The ID check should not be done here
866 	 * either since this PD is already being used.
867 	 */
868 	targ = &sassc->targets[id];
869 	if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
870 		if (mprsas_check_id(sassc, id) != 0) {
871 			device_printf(sc->mpr_dev, "Excluding target id %d\n",
872 			    id);
873 			error = ENXIO;
874 			goto out;
875 		}
876 
877 		if (targ->handle != 0x0) {
878 			mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
879 			    "target id %d handle 0x%04x\n", id, targ->handle);
880 			error = ENXIO;
881 			goto out;
882 		}
883 	}
884 
885 	mpr_dprint(sc, MPR_MAPPING, "SAS Address from SAS device page0 = %jx\n",
886 	    sas_address);
887 	targ->devinfo = device_info;
888 	targ->devname = le32toh(config_page.DeviceName.High);
889 	targ->devname = (targ->devname << 32) |
890 	    le32toh(config_page.DeviceName.Low);
891 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
892 	targ->encl_slot = le16toh(config_page.Slot);
893 	targ->encl_level = config_page.EnclosureLevel;
894 	targ->connector_name[0] = config_page.ConnectorName[0];
895 	targ->connector_name[1] = config_page.ConnectorName[1];
896 	targ->connector_name[2] = config_page.ConnectorName[2];
897 	targ->connector_name[3] = config_page.ConnectorName[3];
898 	targ->handle = handle;
899 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
900 	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
901 	targ->parent_sasaddr = le64toh(parent_sas_address);
902 	targ->parent_devinfo = parent_devinfo;
903 	targ->tid = id;
904 	targ->linkrate = (linkrate>>4);
905 	targ->flags = 0;
906 	if (is_SATA_SSD) {
907 		targ->flags = MPR_TARGET_IS_SATA_SSD;
908 	}
909 	if ((le16toh(config_page.Flags) &
910 	    MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
911 	    (le16toh(config_page.Flags) &
912 	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
913 		targ->scsi_req_desc_type =
914 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
915 	}
916 	if (le16toh(config_page.Flags) &
917 	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
918 		targ->encl_level_valid = TRUE;
919 	}
920 	TAILQ_INIT(&targ->commands);
921 	TAILQ_INIT(&targ->timedout_commands);
922 	while (!SLIST_EMPTY(&targ->luns)) {
923 		lun = SLIST_FIRST(&targ->luns);
924 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
925 		free(lun, M_MPR);
926 	}
927 	SLIST_INIT(&targ->luns);
928 
929 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
930 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
931 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
932 	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
933 	    targ->handle, targ->encl_handle, targ->encl_slot);
934 	if (targ->encl_level_valid) {
935 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
936 		    "and connector name (%4s)\n", targ->encl_level,
937 		    targ->connector_name);
938 	}
939 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
940     (__FreeBSD_version < 902502)
941 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
942 #endif
943 		mprsas_rescan_target(sc, targ);
944 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
945 
946 	/*
947 	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
948 	 * If so, send a Target Reset TM to the target that was just created.
949 	 * An Abort Task TM should be used instead of a Target Reset, but that
950 	 * would be much more difficult because targets have not been fully
951 	 * discovered yet, and LUN's haven't been setup.  So, just reset the
952 	 * target instead of the LUN.
953 	 */
954 	for (i = 1; i < sc->num_reqs; i++) {
955 		cm = &sc->commands[i];
956 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
957 			targ->timeouts++;
958 			cm->cm_state = MPR_CM_STATE_TIMEDOUT;
959 
960 			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
961 				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
962 				    "Reset for stuck SATA identify command "
963 				    "(cm = %p)\n", __func__, cm);
964 				targ->tm->cm_targ = targ;
965 				mprsas_send_reset(sc, targ->tm,
966 				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
967 			} else {
968 				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
969 				    "tm for Target Reset after SATA ID command "
970 				    "timed out (cm %p)\n", cm);
971 			}
972 			/*
973 			 * No need to check for more since the target is
974 			 * already being reset.
975 			 */
976 			break;
977 		}
978 	}
979 out:
980 	/*
981 	 * Free the commands that may not have been freed from the SATA ID call
982 	 */
983 	for (i = 1; i < sc->num_reqs; i++) {
984 		cm = &sc->commands[i];
985 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
986 			mpr_free_command(sc, cm);
987 		}
988 	}
989 	mprsas_startup_decrement(sassc);
990 	return (error);
991 }
992 
993 int
994 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
995     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
996 {
997 	Mpi2SataPassthroughReply_t mpi_reply;
998 	int i, rc, try_count;
999 	u32 *bufferptr;
1000 	union _sata_sas_address hash_address;
1001 	struct _ata_identify_device_data ata_identify;
1002 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
1003 	u32 ioc_status;
1004 	u8 sas_status;
1005 
1006 	memset(&ata_identify, 0, sizeof(ata_identify));
1007 	memset(&mpi_reply, 0, sizeof(mpi_reply));
1008 	try_count = 0;
1009 	do {
1010 		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
1011 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
1012 		try_count++;
1013 		ioc_status = le16toh(mpi_reply.IOCStatus)
1014 		    & MPI2_IOCSTATUS_MASK;
1015 		sas_status = mpi_reply.SASStatus;
1016 		switch (ioc_status) {
1017 		case MPI2_IOCSTATUS_SUCCESS:
1018 			break;
1019 		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
1020 			/* No sense sleeping.  this error won't get better */
1021 			break;
1022 		default:
1023 			if (sc->spinup_wait_time > 0) {
1024 				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
1025 				    "after SATA ID error to wait for spinup\n",
1026 				    sc->spinup_wait_time);
1027 				msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
1028 				    "mprid", sc->spinup_wait_time * hz);
1029 			}
1030 		}
1031 	} while (((rc && (rc != EWOULDBLOCK)) ||
1032 	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
1033 	    || sas_status) && (try_count < 5));
1034 
1035 	if (rc == 0 && !ioc_status && !sas_status) {
1036 		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
1037 		    "successfully for handle = 0x%x with try_count = %d\n",
1038 		    __func__, handle, try_count);
1039 	} else {
1040 		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
1041 		    __func__, handle);
1042 		return -1;
1043 	}
1044 	/* Copy & byteswap the 40 byte model number to a buffer */
1045 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
1046 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
1047 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
1048 	}
1049 	/* Copy & byteswap the 20 byte serial number to a buffer */
1050 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
1051 		buffer[MPT2SAS_MN_LEN + i] =
1052 		    ((u8 *)ata_identify.serial_number)[i + 1];
1053 		buffer[MPT2SAS_MN_LEN + i + 1] =
1054 		    ((u8 *)ata_identify.serial_number)[i];
1055 	}
1056 	bufferptr = (u32 *)buffer;
1057 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
1058 	 * so loop through the first 56 bytes (7*8),
1059 	 * and then add in the last dword.
1060 	 */
1061 	hash_address.word.low  = 0;
1062 	hash_address.word.high = 0;
1063 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
1064 		hash_address.word.low += *bufferptr;
1065 		bufferptr++;
1066 		hash_address.word.high += *bufferptr;
1067 		bufferptr++;
1068 	}
1069 	/* Add the last dword */
1070 	hash_address.word.low += *bufferptr;
1071 	/* Make sure the hash doesn't start with 5, because it could clash
1072 	 * with a SAS address. Change 5 to a D.
1073 	 */
1074 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
1075 		hash_address.word.high |= 0x00000080;
1076 	*sas_address = (u64)hash_address.wwid[0] << 56 |
1077 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
1078 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
1079 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
1080 	    (u64)hash_address.wwid[7];
1081 	if (ata_identify.rotational_speed == 1) {
1082 		*is_SATA_SSD = 1;
1083 	}
1084 
1085 	return 0;
1086 }
1087 
1088 static int
1089 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
1090     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
1091 {
1092 	Mpi2SataPassthroughRequest_t *mpi_request;
1093 	Mpi2SataPassthroughReply_t *reply;
1094 	struct mpr_command *cm;
1095 	char *buffer;
1096 	int error = 0;
1097 
1098 	buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
1099 	if (!buffer)
1100 		return ENOMEM;
1101 
1102 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1103 		free(buffer, M_MPR);
1104 		return (EBUSY);
1105 	}
1106 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
1107 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
1108 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
1109 	mpi_request->VF_ID = 0;
1110 	mpi_request->DevHandle = htole16(handle);
1111 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1112 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1113 	mpi_request->DataLength = htole32(sz);
1114 	mpi_request->CommandFIS[0] = 0x27;
1115 	mpi_request->CommandFIS[1] = 0x80;
1116 	mpi_request->CommandFIS[2] =  (devinfo &
1117 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1118 	cm->cm_sge = &mpi_request->SGL;
1119 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1120 	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1121 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1122 	cm->cm_data = buffer;
1123 	cm->cm_length = htole32(sz);
1124 
1125 	/*
1126 	 * Start a timeout counter specifically for the SATA ID command. This
1127 	 * is used to fix a problem where the FW does not send a reply sometimes
1128 	 * when a bad disk is in the topology. So, this is used to timeout the
1129 	 * command so that processing can continue normally.
1130 	 */
1131 	mpr_dprint(sc, MPR_XINFO, "%s start timeout counter for SATA ID "
1132 	    "command\n", __func__);
1133 	callout_reset(&cm->cm_callout, MPR_ATA_ID_TIMEOUT * hz,
1134 	    mprsas_ata_id_timeout, cm);
1135 	error = mpr_wait_command(sc, cm, 60, CAN_SLEEP);
1136 	mpr_dprint(sc, MPR_XINFO, "%s stop timeout counter for SATA ID "
1137 	    "command\n", __func__);
1138 	callout_stop(&cm->cm_callout);
1139 
1140 	reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1141 	if (error || (reply == NULL)) {
1142 		/* FIXME */
1143 		/*
1144 		 * If the request returns an error then we need to do a diag
1145 		 * reset
1146 		 */
1147 		printf("%s: request for page completed with error %d",
1148 		    __func__, error);
1149 		error = ENXIO;
1150 		goto out;
1151 	}
1152 	bcopy(buffer, id_buffer, sz);
1153 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1154 	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1155 	    MPI2_IOCSTATUS_SUCCESS) {
1156 		printf("%s: error reading SATA PASSTHRU; iocstatus = 0x%x\n",
1157 		    __func__, reply->IOCStatus);
1158 		error = ENXIO;
1159 		goto out;
1160 	}
1161 out:
1162 	/*
1163 	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1164 	 * it.  The command will be freed after sending a target reset TM. If
1165 	 * the command did timeout, use EWOULDBLOCK.
1166 	 */
1167 	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0)
1168 		mpr_free_command(sc, cm);
1169 	else if (error == 0)
1170 		error = EWOULDBLOCK;
1171 	cm->cm_data = NULL;
1172 	free(buffer, M_MPR);
1173 	return (error);
1174 }
1175 
1176 static void
1177 mprsas_ata_id_timeout(void *data)
1178 {
1179 	struct mpr_softc *sc;
1180 	struct mpr_command *cm;
1181 
1182 	cm = (struct mpr_command *)data;
1183 	sc = cm->cm_sc;
1184 	mtx_assert(&sc->mpr_mtx, MA_OWNED);
1185 
1186 	mpr_dprint(sc, MPR_INFO, "%s checking ATA ID command %p sc %p\n",
1187 	    __func__, cm, sc);
1188 	if ((callout_pending(&cm->cm_callout)) ||
1189 	    (!callout_active(&cm->cm_callout))) {
1190 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1191 		    __func__);
1192 		return;
1193 	}
1194 	callout_deactivate(&cm->cm_callout);
1195 
1196 	/*
1197 	 * Run the interrupt handler to make sure it's not pending.  This
1198 	 * isn't perfect because the command could have already completed
1199 	 * and been re-used, though this is unlikely.
1200 	 */
1201 	mpr_intr_locked(sc);
1202 	if (cm->cm_state == MPR_CM_STATE_FREE) {
1203 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1204 		    __func__);
1205 		return;
1206 	}
1207 
1208 	mpr_dprint(sc, MPR_INFO, "ATA ID command timeout cm %p\n", cm);
1209 
1210 	/*
1211 	 * Send wakeup() to the sleeping thread that issued this ATA ID command.
1212 	 * wakeup() will cause msleep to return a 0 (not EWOULDBLOCK), and this
1213 	 * will keep reinit() from being called. This way, an Abort Task TM can
1214 	 * be issued so that the timed out command can be cleared. The Abort
1215 	 * Task cannot be sent from here because the driver has not completed
1216 	 * setting up targets.  Instead, the command is flagged so that special
1217 	 * handling will be used to send the abort.
1218 	 */
1219 	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1220 	wakeup(cm);
1221 }
1222 
1223 static int
1224 mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
1225 {
1226 	char devstring[80];
1227 	struct mprsas_softc *sassc;
1228 	struct mprsas_target *targ;
1229 	Mpi2ConfigReply_t mpi_reply;
1230 	Mpi26PCIeDevicePage0_t config_page;
1231 	Mpi26PCIeDevicePage2_t config_page2;
1232 	uint64_t pcie_wwid, parent_wwid = 0;
1233 	u32 device_info, parent_devinfo = 0;
1234 	unsigned int id;
1235 	int error = 0;
1236 	struct mprsas_lun *lun;
1237 
1238 	sassc = sc->sassc;
1239 	mprsas_startup_increment(sassc);
1240 	if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
1241 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1242 		printf("%s: error reading PCIe device page0\n", __func__);
1243 		error = ENXIO;
1244 		goto out;
1245 	}
1246 
1247 	device_info = le32toh(config_page.DeviceInfo);
1248 
1249 	if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
1250 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
1251 		Mpi2ConfigReply_t tmp_mpi_reply;
1252 		Mpi26PCIeDevicePage0_t parent_config_page;
1253 
1254 		if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
1255 		     &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1256 		     le16toh(config_page.ParentDevHandle)))) {
1257 			printf("%s: error reading PCIe device %#x page0\n",
1258 			    __func__, le16toh(config_page.ParentDevHandle));
1259 		} else {
1260 			parent_wwid = parent_config_page.WWID.High;
1261 			parent_wwid = (parent_wwid << 32) |
1262 			    parent_config_page.WWID.Low;
1263 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
1264 		}
1265 	}
1266 	/* TODO Check proper endianness */
1267 	pcie_wwid = config_page.WWID.High;
1268 	pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
1269 	mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
1270 	    pcie_wwid);
1271 
1272 	if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
1273 	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1274 		printf("%s: error reading PCIe device page2\n", __func__);
1275 		error = ENXIO;
1276 		goto out;
1277 	}
1278 
1279 	id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
1280 	if (id == MPR_MAP_BAD_ID) {
1281 		mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
1282 		    "Could not get ID for device with handle 0x%04x\n",
1283 		    __FILE__, __LINE__, __func__, handle);
1284 		error = ENXIO;
1285 		goto out;
1286 	}
1287 	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
1288 	    __func__, id);
1289 
1290 	if (mprsas_check_id(sassc, id) != 0) {
1291 		device_printf(sc->mpr_dev, "Excluding target id %d\n", id);
1292 		error = ENXIO;
1293 		goto out;
1294 	}
1295 
1296 	mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
1297 	    pcie_wwid);
1298 	targ = &sassc->targets[id];
1299 	targ->devinfo = device_info;
1300 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
1301 	targ->encl_slot = le16toh(config_page.Slot);
1302 	targ->encl_level = config_page.EnclosureLevel;
1303 	targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
1304 	targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
1305 	targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
1306 	targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
1307 	targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
1308 	targ->MDTS = config_page2.MaximumDataTransferSize;
1309 	/*
1310 	 * Assume always TRUE for encl_level_valid because there is no valid
1311 	 * flag for PCIe.
1312 	 */
1313 	targ->encl_level_valid = TRUE;
1314 	targ->handle = handle;
1315 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
1316 	targ->sasaddr = mpr_to_u64(&config_page.WWID);
1317 	targ->parent_sasaddr = le64toh(parent_wwid);
1318 	targ->parent_devinfo = parent_devinfo;
1319 	targ->tid = id;
1320 	targ->linkrate = linkrate;
1321 	targ->flags = 0;
1322 	if ((le16toh(config_page.Flags) &
1323 	    MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) &&
1324 	    (le16toh(config_page.Flags) &
1325 	    MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
1326 		targ->scsi_req_desc_type =
1327 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
1328 	}
1329 	TAILQ_INIT(&targ->commands);
1330 	TAILQ_INIT(&targ->timedout_commands);
1331 	while (!SLIST_EMPTY(&targ->luns)) {
1332 		lun = SLIST_FIRST(&targ->luns);
1333 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1334 		free(lun, M_MPR);
1335 	}
1336 	SLIST_INIT(&targ->luns);
1337 
1338 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
1339 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
1340 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
1341 	    mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
1342 	    targ->handle, targ->encl_handle, targ->encl_slot);
1343 	if (targ->encl_level_valid) {
1344 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
1345 		    "and connector name (%4s)\n", targ->encl_level,
1346 		    targ->connector_name);
1347 	}
1348 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1349     (__FreeBSD_version < 902502)
1350 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1351 #endif
1352 		mprsas_rescan_target(sc, targ);
1353 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1354 
1355 out:
1356 	mprsas_startup_decrement(sassc);
1357 	return (error);
1358 }
1359 
1360 static int
1361 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1362 {
1363 	struct mprsas_softc *sassc;
1364 	struct mprsas_target *targ;
1365 	u64 wwid;
1366 	unsigned int id;
1367 	int error = 0;
1368 	struct mprsas_lun *lun;
1369 
1370 	sassc = sc->sassc;
1371 	mprsas_startup_increment(sassc);
1372 	/* wwid is endian safe */
1373 	mpr_config_get_volume_wwid(sc, handle, &wwid);
1374 	if (!wwid) {
1375 		printf("%s: invalid WWID; cannot add volume to mapping table\n",
1376 		    __func__);
1377 		error = ENXIO;
1378 		goto out;
1379 	}
1380 
1381 	id = mpr_mapping_get_raid_tid(sc, wwid, handle);
1382 	if (id == MPR_MAP_BAD_ID) {
1383 		printf("%s: could not get ID for volume with handle 0x%04x and "
1384 		    "WWID 0x%016llx\n", __func__, handle,
1385 		    (unsigned long long)wwid);
1386 		error = ENXIO;
1387 		goto out;
1388 	}
1389 
1390 	targ = &sassc->targets[id];
1391 	targ->tid = id;
1392 	targ->handle = handle;
1393 	targ->devname = wwid;
1394 	TAILQ_INIT(&targ->commands);
1395 	TAILQ_INIT(&targ->timedout_commands);
1396 	while (!SLIST_EMPTY(&targ->luns)) {
1397 		lun = SLIST_FIRST(&targ->luns);
1398 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1399 		free(lun, M_MPR);
1400 	}
1401 	SLIST_INIT(&targ->luns);
1402 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1403     (__FreeBSD_version < 902502)
1404 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1405 #endif
1406 		mprsas_rescan_target(sc, targ);
1407 	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1408 	    targ->tid, wwid);
1409 out:
1410 	mprsas_startup_decrement(sassc);
1411 	return (error);
1412 }
1413 
1414 /**
1415  * mprsas_SSU_to_SATA_devices
1416  * @sc: per adapter object
1417  *
1418  * Looks through the target list and issues a StartStopUnit SCSI command to each
1419  * SATA direct-access device.  This helps to ensure that data corruption is
1420  * avoided when the system is being shut down.  This must be called after the IR
1421  * System Shutdown RAID Action is sent if in IR mode.
1422  *
1423  * Return nothing.
1424  */
1425 static void
1426 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc)
1427 {
1428 	struct mprsas_softc *sassc = sc->sassc;
1429 	union ccb *ccb;
1430 	path_id_t pathid = cam_sim_path(sassc->sim);
1431 	target_id_t targetid;
1432 	struct mprsas_target *target;
1433 	char path_str[64];
1434 	struct timeval cur_time, start_time;
1435 
1436 	mpr_lock(sc);
1437 
1438 	/*
1439 	 * For each target, issue a StartStopUnit command to stop the device.
1440 	 */
1441 	sc->SSU_started = TRUE;
1442 	sc->SSU_refcount = 0;
1443 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1444 		target = &sassc->targets[targetid];
1445 		if (target->handle == 0x0) {
1446 			continue;
1447 		}
1448 
1449 		/*
1450 		 * The stop_at_shutdown flag will be set if this device is
1451 		 * a SATA direct-access end device.
1452 		 */
1453 		if (target->stop_at_shutdown) {
1454 			ccb = xpt_alloc_ccb_nowait();
1455 			if (ccb == NULL) {
1456 				mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
1457 				    "to stop unit.\n");
1458 				return;
1459 			}
1460 
1461 			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1462 			    pathid, targetid, CAM_LUN_WILDCARD) !=
1463 			    CAM_REQ_CMP) {
1464 				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1465 				    "path to stop unit.\n");
1466 				xpt_free_ccb(ccb);
1467 				return;
1468 			}
1469 			xpt_path_string(ccb->ccb_h.path, path_str,
1470 			    sizeof(path_str));
1471 
1472 			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1473 			    "handle %d\n", path_str, target->handle);
1474 
1475 			/*
1476 			 * Issue a START STOP UNIT command for the target.
1477 			 * Increment the SSU counter to be used to count the
1478 			 * number of required replies.
1479 			 */
1480 			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1481 			sc->SSU_refcount++;
1482 			ccb->ccb_h.target_id =
1483 			    xpt_path_target_id(ccb->ccb_h.path);
1484 			ccb->ccb_h.ppriv_ptr1 = sassc;
1485 			scsi_start_stop(&ccb->csio,
1486 			    /*retries*/0,
1487 			    mprsas_stop_unit_done,
1488 			    MSG_SIMPLE_Q_TAG,
1489 			    /*start*/FALSE,
1490 			    /*load/eject*/0,
1491 			    /*immediate*/FALSE,
1492 			    MPR_SENSE_LEN,
1493 			    /*timeout*/10000);
1494 			xpt_action(ccb);
1495 		}
1496 	}
1497 
1498 	mpr_unlock(sc);
1499 
1500 	/*
1501 	 * Wait until all of the SSU commands have completed or time has
1502 	 * expired (60 seconds).  Pause for 100ms each time through.  If any
1503 	 * command times out, the target will be reset in the SCSI command
1504 	 * timeout routine.
1505 	 */
1506 	getmicrotime(&start_time);
1507 	while (sc->SSU_refcount) {
1508 		pause("mprwait", hz/10);
1509 
1510 		getmicrotime(&cur_time);
1511 		if ((cur_time.tv_sec - start_time.tv_sec) > 60) {
1512 			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1513 			    "for SSU commands to complete.\n");
1514 			break;
1515 		}
1516 	}
1517 }
1518 
1519 static void
1520 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1521 {
1522 	struct mprsas_softc *sassc;
1523 	char path_str[64];
1524 
1525 	if (done_ccb == NULL)
1526 		return;
1527 
1528 	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1529 
1530 	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1531 	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1532 	    path_str);
1533 
1534 	/*
1535 	 * Nothing more to do except free the CCB and path.  If the command
1536 	 * timed out, an abort reset, then target reset will be issued during
1537 	 * the SCSI Command process.
1538 	 */
1539 	xpt_free_path(done_ccb->ccb_h.path);
1540 	xpt_free_ccb(done_ccb);
1541 }
1542 
1543 /**
1544  * mprsas_ir_shutdown - IR shutdown notification
1545  * @sc: per adapter object
1546  *
1547  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1548  * the host system is shutting down.
1549  *
1550  * Return nothing.
1551  */
1552 void
1553 mprsas_ir_shutdown(struct mpr_softc *sc)
1554 {
1555 	u16 volume_mapping_flags;
1556 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1557 	struct dev_mapping_table *mt_entry;
1558 	u32 start_idx, end_idx;
1559 	unsigned int id, found_volume = 0;
1560 	struct mpr_command *cm;
1561 	Mpi2RaidActionRequest_t	*action;
1562 	target_id_t targetid;
1563 	struct mprsas_target *target;
1564 
1565 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1566 
1567 	/* is IR firmware build loaded? */
1568 	if (!sc->ir_firmware)
1569 		goto out;
1570 
1571 	/* are there any volumes?  Look at IR target IDs. */
1572 	// TODO-later, this should be looked up in the RAID config structure
1573 	// when it is implemented.
1574 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1575 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1576 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1577 		start_idx = 0;
1578 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1579 			start_idx = 1;
1580 	} else
1581 		start_idx = sc->max_devices - sc->max_volumes;
1582 	end_idx = start_idx + sc->max_volumes - 1;
1583 
1584 	for (id = start_idx; id < end_idx; id++) {
1585 		mt_entry = &sc->mapping_table[id];
1586 		if ((mt_entry->physical_id != 0) &&
1587 		    (mt_entry->missing_count == 0)) {
1588 			found_volume = 1;
1589 			break;
1590 		}
1591 	}
1592 
1593 	if (!found_volume)
1594 		goto out;
1595 
1596 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1597 		printf("%s: command alloc failed\n", __func__);
1598 		goto out;
1599 	}
1600 
1601 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1602 	action->Function = MPI2_FUNCTION_RAID_ACTION;
1603 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1604 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1605 	mpr_lock(sc);
1606 	mpr_wait_command(sc, cm, 5, CAN_SLEEP);
1607 	mpr_unlock(sc);
1608 
1609 	/*
1610 	 * Don't check for reply, just leave.
1611 	 */
1612 	if (cm)
1613 		mpr_free_command(sc, cm);
1614 
1615 out:
1616 	/*
1617 	 * All of the targets must have the correct value set for
1618 	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1619 	 *
1620 	 * The possible values for the 'enable_ssu' variable are:
1621 	 * 0: disable to SSD and HDD
1622 	 * 1: disable only to HDD (default)
1623 	 * 2: disable only to SSD
1624 	 * 3: enable to SSD and HDD
1625 	 * anything else will default to 1.
1626 	 */
1627 	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1628 		target = &sc->sassc->targets[targetid];
1629 		if (target->handle == 0x0) {
1630 			continue;
1631 		}
1632 
1633 		if (target->supports_SSU) {
1634 			switch (sc->enable_ssu) {
1635 			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1636 				target->stop_at_shutdown = FALSE;
1637 				break;
1638 			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1639 				target->stop_at_shutdown = TRUE;
1640 				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1641 					target->stop_at_shutdown = FALSE;
1642 				}
1643 				break;
1644 			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1645 				target->stop_at_shutdown = TRUE;
1646 				break;
1647 			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1648 			default:
1649 				target->stop_at_shutdown = TRUE;
1650 				if ((target->flags &
1651 				    MPR_TARGET_IS_SATA_SSD) == 0) {
1652 					target->stop_at_shutdown = FALSE;
1653 				}
1654 				break;
1655 			}
1656 		}
1657 	}
1658 	mprsas_SSU_to_SATA_devices(sc);
1659 }
1660