xref: /freebsd/sys/dev/mpr/mpr_sas_lsi.c (revision fed1ca4b719c56c930f2259d80663cd34be812bb)
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_cnfg.h>
75 #include <dev/mpr/mpi/mpi2_init.h>
76 #include <dev/mpr/mpi/mpi2_raid.h>
77 #include <dev/mpr/mpi/mpi2_tool.h>
78 #include <dev/mpr/mpr_ioctl.h>
79 #include <dev/mpr/mprvar.h>
80 #include <dev/mpr/mpr_table.h>
81 #include <dev/mpr/mpr_sas.h>
82 
83 /* For Hashed SAS Address creation for SATA Drives */
84 #define MPT2SAS_SN_LEN 20
85 #define MPT2SAS_MN_LEN 40
86 
87 struct mpr_fw_event_work {
88 	u16			event;
89 	void			*event_data;
90 	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
91 };
92 
93 union _sata_sas_address {
94 	u8 wwid[8];
95 	struct {
96 		u32 high;
97 		u32 low;
98 	} word;
99 };
100 
101 /*
102  * define the IDENTIFY DEVICE structure
103  */
104 struct _ata_identify_device_data {
105 	u16 reserved1[10];	/* 0-9 */
106 	u16 serial_number[10];	/* 10-19 */
107 	u16 reserved2[7];	/* 20-26 */
108 	u16 model_number[20];	/* 27-46*/
109 	u16 reserved3[170];	/* 47-216 */
110 	u16 rotational_speed;	/* 217 */
111 	u16 reserved4[38];	/* 218-255 */
112 };
113 static u32 event_count;
114 static void mprsas_fw_work(struct mpr_softc *sc,
115     struct mpr_fw_event_work *fw_event);
116 static void mprsas_fw_event_free(struct mpr_softc *,
117     struct mpr_fw_event_work *);
118 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
119 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
120     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
121     u32 devinfo);
122 static void mprsas_ata_id_timeout(void *data);
123 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
124     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
125 static int mprsas_volume_add(struct mpr_softc *sc,
126     u16 handle);
127 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc);
128 static void mprsas_stop_unit_done(struct cam_periph *periph,
129     union ccb *done_ccb);
130 
131 void
132 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
133     MPI2_EVENT_NOTIFICATION_REPLY *event)
134 {
135 	struct mpr_fw_event_work *fw_event;
136 	u16 sz;
137 
138 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
139 	mpr_print_evt_sas(sc, event);
140 	mprsas_record_event(sc, event);
141 
142 	fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
143 	     M_ZERO|M_NOWAIT);
144 	if (!fw_event) {
145 		printf("%s: allocate failed for fw_event\n", __func__);
146 		return;
147 	}
148 	sz = le16toh(event->EventDataLength) * 4;
149 	fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
150 	if (!fw_event->event_data) {
151 		printf("%s: allocate failed for event_data\n", __func__);
152 		free(fw_event, M_MPR);
153 		return;
154 	}
155 
156 	bcopy(event->EventData, fw_event->event_data, sz);
157 	fw_event->event = event->Event;
158 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
159 	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
160 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
161 	    sc->track_mapping_events)
162 		sc->pending_map_events++;
163 
164 	/*
165 	 * When wait_for_port_enable flag is set, make sure that all the events
166 	 * are processed. Increment the startup_refcount and decrement it after
167 	 * events are processed.
168 	 */
169 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
170 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
171 	    sc->wait_for_port_enable)
172 		mprsas_startup_increment(sc->sassc);
173 
174 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
175 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
176 
177 }
178 
179 static void
180 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
181 {
182 
183 	free(fw_event->event_data, M_MPR);
184 	free(fw_event, M_MPR);
185 }
186 
187 /**
188  * _mpr_fw_work - delayed task for processing firmware events
189  * @sc: per adapter object
190  * @fw_event: The fw_event_work object
191  * Context: user.
192  *
193  * Return nothing.
194  */
195 static void
196 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
197 {
198 	struct mprsas_softc *sassc;
199 	sassc = sc->sassc;
200 
201 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
202 	    event_count++, __func__, fw_event->event);
203 	switch (fw_event->event) {
204 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
205 	{
206 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
207 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
208 		int i;
209 
210 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
211 		    fw_event->event_data;
212 
213 		mpr_mapping_topology_change_event(sc, fw_event->event_data);
214 
215 		for (i = 0; i < data->NumEntries; i++) {
216 			phy = &data->PHY[i];
217 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
218 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
219 				if (mprsas_add_device(sc,
220 				    le16toh(phy->AttachedDevHandle),
221 				    phy->LinkRate)) {
222 					printf("%s: failed to add device with "
223 					    "handle 0x%x\n", __func__,
224 					    le16toh(phy->AttachedDevHandle));
225 					mprsas_prepare_remove(sassc, le16toh(
226 					    phy->AttachedDevHandle));
227 				}
228 				break;
229 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
230 				mprsas_prepare_remove(sassc, le16toh(
231 				    phy->AttachedDevHandle));
232 				break;
233 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
234 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
235 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
236 			default:
237 				break;
238 			}
239 		}
240 		/*
241 		 * refcount was incremented for this event in
242 		 * mprsas_evt_handler.  Decrement it here because the event has
243 		 * been processed.
244 		 */
245 		mprsas_startup_decrement(sassc);
246 		break;
247 	}
248 	case MPI2_EVENT_SAS_DISCOVERY:
249 	{
250 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
251 
252 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
253 
254 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
255 			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
256 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
257 			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
258 			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
259 			mprsas_discovery_end(sassc);
260 		}
261 		break;
262 	}
263 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
264 	{
265 		Mpi2EventDataSasEnclDevStatusChange_t *data;
266 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
267 		    fw_event->event_data;
268 		mpr_mapping_enclosure_dev_status_change_event(sc,
269 		    fw_event->event_data);
270 		break;
271 	}
272 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
273 	{
274 		Mpi2EventIrConfigElement_t *element;
275 		int i;
276 		u8 foreign_config, reason;
277 		u16 elementType;
278 		Mpi2EventDataIrConfigChangeList_t *event_data;
279 		struct mprsas_target *targ;
280 		unsigned int id;
281 
282 		event_data = fw_event->event_data;
283 		foreign_config = (le32toh(event_data->Flags) &
284 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
285 
286 		element =
287 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
288 		id = mpr_mapping_get_raid_id_from_handle(sc,
289 		    element->VolDevHandle);
290 
291 		mpr_mapping_ir_config_change_event(sc, event_data);
292 		for (i = 0; i < event_data->NumElements; i++, element++) {
293 			reason = element->ReasonCode;
294 			elementType = le16toh(element->ElementFlags) &
295 			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
296 			/*
297 			 * check for element type of Phys Disk or Hot Spare
298 			 */
299 			if ((elementType !=
300 			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
301 			    && (elementType !=
302 			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
303 				// do next element
304 				goto skip_fp_send;
305 
306 			/*
307 			 * check for reason of Hide, Unhide, PD Created, or PD
308 			 * Deleted
309 			 */
310 			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
311 			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
312 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
313 			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
314 				goto skip_fp_send;
315 
316 			// check for a reason of Hide or PD Created
317 			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
318 			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
319 			{
320 				// build RAID Action message
321 				Mpi2RaidActionRequest_t	*action;
322 				Mpi2RaidActionReply_t *reply;
323 				struct mpr_command *cm;
324 				int error = 0;
325 				if ((cm = mpr_alloc_command(sc)) == NULL) {
326 					printf("%s: command alloc failed\n",
327 					    __func__);
328 					return;
329 				}
330 
331 				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
332 				    "from "
333 				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
334 				    ":\n");
335 				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
336 				action->Function = MPI2_FUNCTION_RAID_ACTION;
337 				action->Action =
338 				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
339 				action->PhysDiskNum = element->PhysDiskNum;
340 				cm->cm_desc.Default.RequestFlags =
341 				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
342 				error = mpr_request_polled(sc, cm);
343 				reply = (Mpi2RaidActionReply_t *)cm->cm_reply;
344 				if (error || (reply == NULL)) {
345 					/* FIXME */
346 					/*
347 					 * If the poll returns error then we
348 					 * need to do diag reset
349 					 */
350 					printf("%s: poll for page completed "
351 					    "with error %d", __func__, error);
352 				}
353 				if (reply && (le16toh(reply->IOCStatus) &
354 				    MPI2_IOCSTATUS_MASK) !=
355 				    MPI2_IOCSTATUS_SUCCESS) {
356 					mpr_dprint(sc, MPR_ERROR, "%s: error "
357 					    "sending RaidActionPage; "
358 					    "iocstatus = 0x%x\n", __func__,
359 					    le16toh(reply->IOCStatus));
360 				}
361 
362 				if (cm)
363 					mpr_free_command(sc, cm);
364 			}
365 skip_fp_send:
366 			mpr_dprint(sc, MPR_EVENT, "Received "
367 			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
368 			    "code %x:\n", element->ReasonCode);
369 			switch (element->ReasonCode) {
370 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
371 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
372 				if (!foreign_config) {
373 					if (mprsas_volume_add(sc,
374 					    le16toh(element->VolDevHandle))) {
375 						printf("%s: failed to add RAID "
376 						    "volume with handle 0x%x\n",
377 						    __func__, le16toh(element->
378 						    VolDevHandle));
379 					}
380 				}
381 				break;
382 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
383 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
384 				/*
385 				 * Rescan after volume is deleted or removed.
386 				 */
387 				if (!foreign_config) {
388 					if (id == MPR_MAP_BAD_ID) {
389 						printf("%s: could not get ID "
390 						    "for volume with handle "
391 						    "0x%04x\n", __func__,
392 						    le16toh(element->
393 						    VolDevHandle));
394 						break;
395 					}
396 
397 					targ = &sassc->targets[id];
398 					targ->handle = 0x0;
399 					targ->encl_slot = 0x0;
400 					targ->encl_handle = 0x0;
401 					targ->encl_level_valid = 0x0;
402 					targ->encl_level = 0x0;
403 					targ->connector_name[0] = ' ';
404 					targ->connector_name[1] = ' ';
405 					targ->connector_name[2] = ' ';
406 					targ->connector_name[3] = ' ';
407 					targ->exp_dev_handle = 0x0;
408 					targ->phy_num = 0x0;
409 					targ->linkrate = 0x0;
410 					mprsas_rescan_target(sc, targ);
411 					printf("RAID target id 0x%x removed\n",
412 					    targ->tid);
413 				}
414 				break;
415 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
416 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
417 				/*
418 				 * Phys Disk of a volume has been created.  Hide
419 				 * it from the OS.
420 				 */
421 				targ = mprsas_find_target_by_handle(sassc, 0,
422 				    element->PhysDiskDevHandle);
423 				if (targ == NULL)
424 					break;
425 				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
426 				mprsas_rescan_target(sc, targ);
427 				break;
428 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
429 				/*
430 				 * Phys Disk of a volume has been deleted.
431 				 * Expose it to the OS.
432 				 */
433 				if (mprsas_add_device(sc,
434 				    le16toh(element->PhysDiskDevHandle), 0)) {
435 					printf("%s: failed to add device with "
436 					    "handle 0x%x\n", __func__,
437 					    le16toh(element->
438 					    PhysDiskDevHandle));
439 					mprsas_prepare_remove(sassc,
440 					    le16toh(element->
441 					    PhysDiskDevHandle));
442 				}
443 				break;
444 			}
445 		}
446 		/*
447 		 * refcount was incremented for this event in
448 		 * mprsas_evt_handler.  Decrement it here because the event has
449 		 * been processed.
450 		 */
451 		mprsas_startup_decrement(sassc);
452 		break;
453 	}
454 	case MPI2_EVENT_IR_VOLUME:
455 	{
456 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
457 
458 		/*
459 		 * Informational only.
460 		 */
461 		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
462 		switch (event_data->ReasonCode) {
463 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
464   			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
465   			    "changed from 0x%x to 0x%x for Volome with "
466  			    "handle 0x%x", le32toh(event_data->PreviousValue),
467  			    le32toh(event_data->NewValue),
468  			    le16toh(event_data->VolDevHandle));
469 			break;
470 		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
471   			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
472   			    "changed from 0x%x to 0x%x for Volome with "
473  			    "handle 0x%x", le32toh(event_data->PreviousValue),
474  			    le32toh(event_data->NewValue),
475  			    le16toh(event_data->VolDevHandle));
476 			break;
477 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
478   			mpr_dprint(sc, MPR_EVENT, "   Volume State "
479   			    "changed from 0x%x to 0x%x for Volome with "
480  			    "handle 0x%x", le32toh(event_data->PreviousValue),
481  			    le32toh(event_data->NewValue),
482  			    le16toh(event_data->VolDevHandle));
483 				u32 state;
484 				struct mprsas_target *targ;
485 				state = le32toh(event_data->NewValue);
486 				switch (state) {
487 				case MPI2_RAID_VOL_STATE_MISSING:
488 				case MPI2_RAID_VOL_STATE_FAILED:
489 					mprsas_prepare_volume_remove(sassc,
490 					    event_data->VolDevHandle);
491 					break;
492 
493 				case MPI2_RAID_VOL_STATE_ONLINE:
494 				case MPI2_RAID_VOL_STATE_DEGRADED:
495 				case MPI2_RAID_VOL_STATE_OPTIMAL:
496 					targ =
497 					    mprsas_find_target_by_handle(sassc,
498 					    0, event_data->VolDevHandle);
499 					if (targ) {
500 						printf("%s %d: Volume handle "
501 						    "0x%x is already added \n",
502 						    __func__, __LINE__,
503 						    event_data->VolDevHandle);
504 						break;
505 					}
506 					if (mprsas_volume_add(sc,
507 					    le16toh(event_data->
508 					    VolDevHandle))) {
509 						printf("%s: failed to add RAID "
510 						    "volume with handle 0x%x\n",
511 						    __func__, le16toh(
512 						    event_data->VolDevHandle));
513 					}
514 					break;
515 				default:
516 					break;
517 				}
518 			break;
519 		default:
520 			break;
521 		}
522 		break;
523 	}
524 	case MPI2_EVENT_IR_PHYSICAL_DISK:
525 	{
526 		Mpi2EventDataIrPhysicalDisk_t *event_data =
527 		    fw_event->event_data;
528 		struct mprsas_target *targ;
529 
530 		/*
531 		 * Informational only.
532 		 */
533 		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
534 		switch (event_data->ReasonCode) {
535 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
536   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
537   			    "changed from 0x%x to 0x%x for Phys Disk Number "
538   			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
539  			    "%d", le32toh(event_data->PreviousValue),
540  			    le32toh(event_data->NewValue),
541 			    event_data->PhysDiskNum,
542  			    le16toh(event_data->PhysDiskDevHandle),
543  			    le16toh(event_data->EnclosureHandle),
544 			    le16toh(event_data->Slot));
545 			break;
546 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
547   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
548   			    "from 0x%x to 0x%x for Phys Disk Number %d and "
549   			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
550  			    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_STATE_CHANGED:
558   			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State 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 			switch (event_data->NewValue) {
568 				case MPI2_RAID_PD_STATE_ONLINE:
569 				case MPI2_RAID_PD_STATE_DEGRADED:
570 				case MPI2_RAID_PD_STATE_REBUILDING:
571 				case MPI2_RAID_PD_STATE_OPTIMAL:
572 				case MPI2_RAID_PD_STATE_HOT_SPARE:
573 					targ = mprsas_find_target_by_handle(
574 					    sassc, 0,
575 					    event_data->PhysDiskDevHandle);
576 					if (targ) {
577 						targ->flags |=
578 						    MPR_TARGET_FLAGS_RAID_COMPONENT;
579 						printf("%s %d: Found Target "
580 						    "for handle 0x%x.\n",
581 						    __func__, __LINE__ ,
582 						    event_data->
583 						    PhysDiskDevHandle);
584 					}
585 				break;
586 				case MPI2_RAID_PD_STATE_OFFLINE:
587 				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
588 				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
589 				default:
590 					targ = mprsas_find_target_by_handle(
591 					    sassc, 0,
592 					    event_data->PhysDiskDevHandle);
593 					if (targ) {
594 						targ->flags |=
595 					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
596 						printf("%s %d: Found Target "
597 						    "for handle 0x%x.  \n",
598 						    __func__, __LINE__ ,
599 						    event_data->
600 						    PhysDiskDevHandle);
601 					}
602 				break;
603 			}
604 		default:
605 			break;
606 		}
607 		break;
608 	}
609 	case MPI2_EVENT_IR_OPERATION_STATUS:
610 	{
611 		Mpi2EventDataIrOperationStatus_t *event_data =
612 		    fw_event->event_data;
613 
614 		/*
615 		 * Informational only.
616 		 */
617 		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
618 		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
619 		    "percent complete for Volume with handle 0x%x",
620 		    event_data->RAIDOperation, event_data->PercentComplete,
621 		    le16toh(event_data->VolDevHandle));
622 		break;
623 	}
624 	case MPI2_EVENT_TEMP_THRESHOLD:
625 	{
626 		pMpi2EventDataTemperature_t	temp_event;
627 
628 		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
629 
630 		/*
631 		 * The Temp Sensor Count must be greater than the event's Sensor
632 		 * Num to be valid.  If valid, print the temp thresholds that
633 		 * have been exceeded.
634 		 */
635 		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
636 			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
637 			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
638 			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
639 			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
640 			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
641 			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
642 			    temp_event->SensorNum);
643 			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
644 			    "%d\n", temp_event->CurrentTemperature);
645 		}
646 		break;
647 	}
648 	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
649 	{
650 		pMpi26EventDataActiveCableExcept_t	ace_event_data;
651 		ace_event_data =
652 		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
653 
654 		if (ace_event_data->ReasonCode ==
655 		    MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER) {
656 			mpr_printf(sc, "Currently an active cable with "
657 			    "ReceptacleID %d cannot be powered and device "
658 			    "connected to this active cable will not be seen. "
659 			    "This active cable requires %d mW of power.\n",
660 			    ace_event_data->ReceptacleID,
661 			    ace_event_data->ActiveCablePowerRequirement);
662 		}
663 		break;
664 	}
665 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
666 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
667 	default:
668 		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
669 		    fw_event->event);
670 		break;
671 
672 	}
673 	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
674 	    __func__, fw_event->event);
675 	mprsas_fw_event_free(sc, fw_event);
676 }
677 
678 void
679 mprsas_firmware_event_work(void *arg, int pending)
680 {
681 	struct mpr_fw_event_work *fw_event;
682 	struct mpr_softc *sc;
683 
684 	sc = (struct mpr_softc *)arg;
685 	mpr_lock(sc);
686 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
687 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
688 		mprsas_fw_work(sc, fw_event);
689 	}
690 	mpr_unlock(sc);
691 }
692 
693 static int
694 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate){
695 	char devstring[80];
696 	struct mprsas_softc *sassc;
697 	struct mprsas_target *targ;
698 	Mpi2ConfigReply_t mpi_reply;
699 	Mpi2SasDevicePage0_t config_page;
700 	uint64_t sas_address, parent_sas_address = 0;
701 	u32 device_info, parent_devinfo = 0;
702 	unsigned int id;
703 	int ret = 1, error = 0, i;
704 	struct mprsas_lun *lun;
705 	u8 is_SATA_SSD = 0;
706 	struct mpr_command *cm;
707 
708 	sassc = sc->sassc;
709 	mprsas_startup_increment(sassc);
710 	if ((mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
711 	     MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
712 		printf("%s: error reading SAS device page0\n", __func__);
713 		error = ENXIO;
714 		goto out;
715 	}
716 
717 	device_info = le32toh(config_page.DeviceInfo);
718 
719 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
720 	    && (le16toh(config_page.ParentDevHandle) != 0)) {
721 		Mpi2ConfigReply_t tmp_mpi_reply;
722 		Mpi2SasDevicePage0_t parent_config_page;
723 
724 		if ((mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
725 		     &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
726 		     le16toh(config_page.ParentDevHandle)))) {
727 			printf("%s: error reading SAS device %#x page0\n",
728 			    __func__, le16toh(config_page.ParentDevHandle));
729 		} else {
730 			parent_sas_address = parent_config_page.SASAddress.High;
731 			parent_sas_address = (parent_sas_address << 32) |
732 			    parent_config_page.SASAddress.Low;
733 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
734 		}
735 	}
736 	/* TODO Check proper endianness */
737 	sas_address = config_page.SASAddress.High;
738 	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
739 	mpr_dprint(sc, MPR_INFO, "SAS Address from SAS device page0 = %jx\n",
740 	    sas_address);
741 
742 	/*
743 	 * Always get SATA Identify information because this is used to
744 	 * determine if Start/Stop Unit should be sent to the drive when the
745 	 * system is shutdown.
746 	 */
747 	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
748 		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
749 		    handle, device_info, &is_SATA_SSD);
750 		if (ret) {
751 			mpr_dprint(sc, MPR_ERROR, "%s: failed to get disk type "
752 			    "(SSD or HDD) for SATA device with handle 0x%04x\n",
753 			    __func__, handle);
754 		} else {
755 			mpr_dprint(sc, MPR_INFO, "SAS Address from SATA "
756 			    "device = %jx\n", sas_address);
757 		}
758 	}
759 
760 	id = mpr_mapping_get_sas_id(sc, sas_address, handle);
761 	if (id == MPR_MAP_BAD_ID) {
762 		printf("failure at %s:%d/%s()! Could not get ID for device "
763 		    "with handle 0x%04x\n", __FILE__, __LINE__, __func__,
764 		    handle);
765 		error = ENXIO;
766 		goto out;
767 	}
768 
769 	if (mprsas_check_id(sassc, id) != 0) {
770 		device_printf(sc->mpr_dev, "Excluding target id %d\n", id);
771 		error = ENXIO;
772 		goto out;
773 	}
774 
775 	mpr_dprint(sc, MPR_MAPPING, "SAS Address from SAS device page0 = %jx\n",
776 	    sas_address);
777 	targ = &sassc->targets[id];
778 	targ->devinfo = device_info;
779 	targ->devname = le32toh(config_page.DeviceName.High);
780 	targ->devname = (targ->devname << 32) |
781 	    le32toh(config_page.DeviceName.Low);
782 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
783 	targ->encl_slot = le16toh(config_page.Slot);
784 	targ->encl_level = config_page.EnclosureLevel;
785 	targ->connector_name[0] = config_page.ConnectorName[0];
786 	targ->connector_name[1] = config_page.ConnectorName[1];
787 	targ->connector_name[2] = config_page.ConnectorName[2];
788 	targ->connector_name[3] = config_page.ConnectorName[3];
789 	targ->handle = handle;
790 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
791 	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
792 	targ->parent_sasaddr = le64toh(parent_sas_address);
793 	targ->parent_devinfo = parent_devinfo;
794 	targ->tid = id;
795 	targ->linkrate = (linkrate>>4);
796 	targ->flags = 0;
797 	if (is_SATA_SSD) {
798 		targ->flags = MPR_TARGET_IS_SATA_SSD;
799 	}
800 	if (le16toh(config_page.Flags) &
801 	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) {
802 		targ->scsi_req_desc_type =
803 		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
804 	}
805 	if (le16toh(config_page.Flags) &
806 	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
807 		targ->encl_level_valid = TRUE;
808 	}
809 	TAILQ_INIT(&targ->commands);
810 	TAILQ_INIT(&targ->timedout_commands);
811 	while (!SLIST_EMPTY(&targ->luns)) {
812 		lun = SLIST_FIRST(&targ->luns);
813 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
814 		free(lun, M_MPR);
815 	}
816 	SLIST_INIT(&targ->luns);
817 
818 	mpr_describe_devinfo(targ->devinfo, devstring, 80);
819 	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
820 	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
821 	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
822 	    targ->handle, targ->encl_handle, targ->encl_slot);
823 	if (targ->encl_level_valid) {
824 		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
825 		    "and connector name (%4s)\n", targ->encl_level,
826 		    targ->connector_name);
827 	}
828 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
829     (__FreeBSD_version < 902502)
830 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
831 #endif
832 		mprsas_rescan_target(sc, targ);
833 	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
834 
835 	/*
836 	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
837 	 * If so, send a Target Reset TM to the target that was just created.
838 	 * An Abort Task TM should be used instead of a Target Reset, but that
839 	 * would be much more difficult because targets have not been fully
840 	 * discovered yet, and LUN's haven't been setup.  So, just reset the
841 	 * target instead of the LUN.
842 	 */
843 	for (i = 1; i < sc->num_reqs; i++) {
844 		cm = &sc->commands[i];
845 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
846 			targ->timeouts++;
847 			cm->cm_state = MPR_CM_STATE_TIMEDOUT;
848 
849 			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
850 				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
851 				    "Reset for stuck SATA identify command "
852 				    "(cm = %p)\n", __func__, cm);
853 				targ->tm->cm_targ = targ;
854 				mprsas_send_reset(sc, targ->tm,
855 				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
856 			} else {
857 				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
858 				    "tm for Target Reset after SATA ID command "
859 				    "timed out (cm %p)\n", cm);
860 			}
861 			/*
862 			 * No need to check for more since the target is
863 			 * already being reset.
864 			 */
865 			break;
866 		}
867 	}
868 out:
869 	/*
870 	 * Free the commands that may not have been freed from the SATA ID call
871 	 */
872 	for (i = 1; i < sc->num_reqs; i++) {
873 		cm = &sc->commands[i];
874 		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
875 			mpr_free_command(sc, cm);
876 		}
877 	}
878 	mprsas_startup_decrement(sassc);
879 	return (error);
880 }
881 
882 int
883 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
884     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
885 {
886 	Mpi2SataPassthroughReply_t mpi_reply;
887 	int i, rc, try_count;
888 	u32 *bufferptr;
889 	union _sata_sas_address hash_address;
890 	struct _ata_identify_device_data ata_identify;
891 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
892 	u32 ioc_status;
893 	u8 sas_status;
894 
895 	memset(&ata_identify, 0, sizeof(ata_identify));
896 	try_count = 0;
897 	do {
898 		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
899 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
900 		try_count++;
901 		ioc_status = le16toh(mpi_reply.IOCStatus)
902 		    & MPI2_IOCSTATUS_MASK;
903 		sas_status = mpi_reply.SASStatus;
904 		switch (ioc_status) {
905 		case MPI2_IOCSTATUS_SUCCESS:
906 			break;
907 		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
908 			/* No sense sleeping.  this error won't get better */
909 			break;
910 		default:
911 			if (sc->spinup_wait_time > 0) {
912 				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
913 				    "after SATA ID error to wait for spinup\n",
914 				    sc->spinup_wait_time);
915 				msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
916 				    "mprid", sc->spinup_wait_time * hz);
917 			}
918 		}
919 	} while (((rc && (rc != EWOULDBLOCK)) ||
920 	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
921 	    || sas_status) && (try_count < 5));
922 
923 	if (rc == 0 && !ioc_status && !sas_status) {
924 		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
925 		    "successfully for handle = 0x%x with try_count = %d\n",
926 		    __func__, handle, try_count);
927 	} else {
928 		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
929 		    __func__, handle);
930 		return -1;
931 	}
932 	/* Copy & byteswap the 40 byte model number to a buffer */
933 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
934 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
935 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
936 	}
937 	/* Copy & byteswap the 20 byte serial number to a buffer */
938 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
939 		buffer[MPT2SAS_MN_LEN + i] =
940 		    ((u8 *)ata_identify.serial_number)[i + 1];
941 		buffer[MPT2SAS_MN_LEN + i + 1] =
942 		    ((u8 *)ata_identify.serial_number)[i];
943 	}
944 	bufferptr = (u32 *)buffer;
945 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
946 	 * so loop through the first 56 bytes (7*8),
947 	 * and then add in the last dword.
948 	 */
949 	hash_address.word.low  = 0;
950 	hash_address.word.high = 0;
951 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
952 		hash_address.word.low += *bufferptr;
953 		bufferptr++;
954 		hash_address.word.high += *bufferptr;
955 		bufferptr++;
956 	}
957 	/* Add the last dword */
958 	hash_address.word.low += *bufferptr;
959 	/* Make sure the hash doesn't start with 5, because it could clash
960 	 * with a SAS address. Change 5 to a D.
961 	 */
962 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
963 		hash_address.word.high |= 0x00000080;
964 	*sas_address = (u64)hash_address.wwid[0] << 56 |
965 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
966 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
967 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
968 	    (u64)hash_address.wwid[7];
969 	if (ata_identify.rotational_speed == 1) {
970 		*is_SATA_SSD = 1;
971 	}
972 
973 	return 0;
974 }
975 
976 static int
977 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
978     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
979 {
980 	Mpi2SataPassthroughRequest_t *mpi_request;
981 	Mpi2SataPassthroughReply_t *reply;
982 	struct mpr_command *cm;
983 	char *buffer;
984 	int error = 0;
985 
986 	buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
987 	if (!buffer)
988 		return ENOMEM;
989 
990 	if ((cm = mpr_alloc_command(sc)) == NULL) {
991 		free(buffer, M_MPR);
992 		return (EBUSY);
993 	}
994 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
995 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
996 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
997 	mpi_request->VF_ID = 0;
998 	mpi_request->DevHandle = htole16(handle);
999 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1000 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1001 	mpi_request->DataLength = htole32(sz);
1002 	mpi_request->CommandFIS[0] = 0x27;
1003 	mpi_request->CommandFIS[1] = 0x80;
1004 	mpi_request->CommandFIS[2] =  (devinfo &
1005 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1006 	cm->cm_sge = &mpi_request->SGL;
1007 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1008 	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1009 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1010 	cm->cm_data = buffer;
1011 	cm->cm_length = htole32(sz);
1012 
1013 	/*
1014 	 * Start a timeout counter specifically for the SATA ID command. This
1015 	 * is used to fix a problem where the FW does not send a reply sometimes
1016 	 * when a bad disk is in the topology. So, this is used to timeout the
1017 	 * command so that processing can continue normally.
1018 	 */
1019 	mpr_dprint(sc, MPR_XINFO, "%s start timeout counter for SATA ID "
1020 	    "command\n", __func__);
1021 	callout_reset(&cm->cm_callout, MPR_ATA_ID_TIMEOUT * hz,
1022 	    mprsas_ata_id_timeout, cm);
1023 	error = mpr_wait_command(sc, cm, 60, CAN_SLEEP);
1024 	mpr_dprint(sc, MPR_XINFO, "%s stop timeout counter for SATA ID "
1025 	    "command\n", __func__);
1026 	callout_stop(&cm->cm_callout);
1027 
1028 	reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1029 	if (error || (reply == NULL)) {
1030 		/* FIXME */
1031 		/*
1032 		 * If the request returns an error then we need to do a diag
1033 		 * reset
1034 		 */
1035 		printf("%s: request for page completed with error %d",
1036 		    __func__, error);
1037 		error = ENXIO;
1038 		goto out;
1039 	}
1040 	bcopy(buffer, id_buffer, sz);
1041 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1042 	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1043 	    MPI2_IOCSTATUS_SUCCESS) {
1044 		printf("%s: error reading SATA PASSTHRU; iocstatus = 0x%x\n",
1045 		    __func__, reply->IOCStatus);
1046 		error = ENXIO;
1047 		goto out;
1048 	}
1049 out:
1050 	/*
1051 	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1052 	 * it.  The command will be freed after sending a target reset TM. If
1053 	 * the command did timeout, use EWOULDBLOCK.
1054 	 */
1055 	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0)
1056 		mpr_free_command(sc, cm);
1057 	else if (error == 0)
1058 		error = EWOULDBLOCK;
1059 	free(buffer, M_MPR);
1060 	return (error);
1061 }
1062 
1063 static void
1064 mprsas_ata_id_timeout(void *data)
1065 {
1066 	struct mpr_softc *sc;
1067 	struct mpr_command *cm;
1068 
1069 	cm = (struct mpr_command *)data;
1070 	sc = cm->cm_sc;
1071 	mtx_assert(&sc->mpr_mtx, MA_OWNED);
1072 
1073 	mpr_dprint(sc, MPR_INFO, "%s checking ATA ID command %p sc %p\n",
1074 	    __func__, cm, sc);
1075 	if ((callout_pending(&cm->cm_callout)) ||
1076 	    (!callout_active(&cm->cm_callout))) {
1077 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1078 		    __func__);
1079 		return;
1080 	}
1081 	callout_deactivate(&cm->cm_callout);
1082 
1083 	/*
1084 	 * Run the interrupt handler to make sure it's not pending.  This
1085 	 * isn't perfect because the command could have already completed
1086 	 * and been re-used, though this is unlikely.
1087 	 */
1088 	mpr_intr_locked(sc);
1089 	if (cm->cm_state == MPR_CM_STATE_FREE) {
1090 		mpr_dprint(sc, MPR_INFO, "%s ATA ID command almost timed out\n",
1091 		    __func__);
1092 		return;
1093 	}
1094 
1095 	mpr_dprint(sc, MPR_INFO, "ATA ID command timeout cm %p\n", cm);
1096 
1097 	/*
1098 	 * Send wakeup() to the sleeping thread that issued this ATA ID command.
1099 	 * wakeup() will cause msleep to return a 0 (not EWOULDBLOCK), and this
1100 	 * will keep reinit() from being called. This way, an Abort Task TM can
1101 	 * be issued so that the timed out command can be cleared. The Abort
1102 	 * Task cannot be sent from here because the driver has not completed
1103 	 * setting up targets.  Instead, the command is flagged so that special
1104 	 * handling will be used to send the abort.
1105 	 */
1106 	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1107 	wakeup(cm);
1108 }
1109 
1110 static int
1111 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1112 {
1113 	struct mprsas_softc *sassc;
1114 	struct mprsas_target *targ;
1115 	u64 wwid;
1116 	unsigned int id;
1117 	int error = 0;
1118 	struct mprsas_lun *lun;
1119 
1120 	sassc = sc->sassc;
1121 	mprsas_startup_increment(sassc);
1122 	/* wwid is endian safe */
1123 	mpr_config_get_volume_wwid(sc, handle, &wwid);
1124 	if (!wwid) {
1125 		printf("%s: invalid WWID; cannot add volume to mapping table\n",
1126 		    __func__);
1127 		error = ENXIO;
1128 		goto out;
1129 	}
1130 
1131 	id = mpr_mapping_get_raid_id(sc, wwid, handle);
1132 	if (id == MPR_MAP_BAD_ID) {
1133 		printf("%s: could not get ID for volume with handle 0x%04x and "
1134 		    "WWID 0x%016llx\n", __func__, handle,
1135 		    (unsigned long long)wwid);
1136 		error = ENXIO;
1137 		goto out;
1138 	}
1139 
1140 	targ = &sassc->targets[id];
1141 	targ->tid = id;
1142 	targ->handle = handle;
1143 	targ->devname = wwid;
1144 	TAILQ_INIT(&targ->commands);
1145 	TAILQ_INIT(&targ->timedout_commands);
1146 	while (!SLIST_EMPTY(&targ->luns)) {
1147 		lun = SLIST_FIRST(&targ->luns);
1148 		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1149 		free(lun, M_MPR);
1150 	}
1151 	SLIST_INIT(&targ->luns);
1152 #if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1153     (__FreeBSD_version < 902502)
1154 	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1155 #endif
1156 		mprsas_rescan_target(sc, targ);
1157 	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1158 	    targ->tid, wwid);
1159 out:
1160 	mprsas_startup_decrement(sassc);
1161 	return (error);
1162 }
1163 
1164 /**
1165  * mprsas_SSU_to_SATA_devices
1166  * @sc: per adapter object
1167  *
1168  * Looks through the target list and issues a StartStopUnit SCSI command to each
1169  * SATA direct-access device.  This helps to ensure that data corruption is
1170  * avoided when the system is being shut down.  This must be called after the IR
1171  * System Shutdown RAID Action is sent if in IR mode.
1172  *
1173  * Return nothing.
1174  */
1175 static void
1176 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc)
1177 {
1178 	struct mprsas_softc *sassc = sc->sassc;
1179 	union ccb *ccb;
1180 	path_id_t pathid = cam_sim_path(sassc->sim);
1181 	target_id_t targetid;
1182 	struct mprsas_target *target;
1183 	char path_str[64];
1184 	struct timeval cur_time, start_time;
1185 
1186 	mpr_lock(sc);
1187 
1188 	/*
1189 	 * For each target, issue a StartStopUnit command to stop the device.
1190 	 */
1191 	sc->SSU_started = TRUE;
1192 	sc->SSU_refcount = 0;
1193 	for (targetid = 0; targetid < sc->facts->MaxTargets; targetid++) {
1194 		target = &sassc->targets[targetid];
1195 		if (target->handle == 0x0) {
1196 			continue;
1197 		}
1198 
1199 		ccb = xpt_alloc_ccb_nowait();
1200 		if (ccb == NULL) {
1201 			mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB to stop "
1202 			    "unit.\n");
1203 			return;
1204 		}
1205 
1206 		/*
1207 		 * The stop_at_shutdown flag will be set if this device is
1208 		 * a SATA direct-access end device.
1209 		 */
1210 		if (target->stop_at_shutdown) {
1211 			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1212 			    pathid, targetid, CAM_LUN_WILDCARD) !=
1213 			    CAM_REQ_CMP) {
1214 				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1215 				    "path to stop unit.\n");
1216 				xpt_free_ccb(ccb);
1217 				return;
1218 			}
1219 			xpt_path_string(ccb->ccb_h.path, path_str,
1220 			    sizeof(path_str));
1221 
1222 			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1223 			    "handle %d\n", path_str, target->handle);
1224 
1225 			/*
1226 			 * Issue a START STOP UNIT command for the target.
1227 			 * Increment the SSU counter to be used to count the
1228 			 * number of required replies.
1229 			 */
1230 			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1231 			sc->SSU_refcount++;
1232 			ccb->ccb_h.target_id =
1233 			    xpt_path_target_id(ccb->ccb_h.path);
1234 			ccb->ccb_h.ppriv_ptr1 = sassc;
1235 			scsi_start_stop(&ccb->csio,
1236 			    /*retries*/0,
1237 			    mprsas_stop_unit_done,
1238 			    MSG_SIMPLE_Q_TAG,
1239 			    /*start*/FALSE,
1240 			    /*load/eject*/0,
1241 			    /*immediate*/FALSE,
1242 			    MPR_SENSE_LEN,
1243 			    /*timeout*/10000);
1244 			xpt_action(ccb);
1245 		}
1246 	}
1247 
1248 	mpr_unlock(sc);
1249 
1250 	/*
1251 	 * Wait until all of the SSU commands have completed or time has
1252 	 * expired (60 seconds).  Pause for 100ms each time through.  If any
1253 	 * command times out, the target will be reset in the SCSI command
1254 	 * timeout routine.
1255 	 */
1256 	getmicrotime(&start_time);
1257 	while (sc->SSU_refcount) {
1258 		pause("mprwait", hz/10);
1259 
1260 		getmicrotime(&cur_time);
1261 		if ((cur_time.tv_sec - start_time.tv_sec) > 60) {
1262 			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1263 			    "for SSU commands to complete.\n");
1264 			break;
1265 		}
1266 	}
1267 }
1268 
1269 static void
1270 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1271 {
1272 	struct mprsas_softc *sassc;
1273 	char path_str[64];
1274 
1275 	if (done_ccb == NULL)
1276 		return;
1277 
1278 	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1279 
1280 	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1281 	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1282 	    path_str);
1283 
1284 	/*
1285 	 * Nothing more to do except free the CCB and path.  If the command
1286 	 * timed out, an abort reset, then target reset will be issued during
1287 	 * the SCSI Command process.
1288 	 */
1289 	xpt_free_path(done_ccb->ccb_h.path);
1290 	xpt_free_ccb(done_ccb);
1291 }
1292 
1293 /**
1294  * mprsas_ir_shutdown - IR shutdown notification
1295  * @sc: per adapter object
1296  *
1297  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1298  * the host system is shutting down.
1299  *
1300  * Return nothing.
1301  */
1302 void
1303 mprsas_ir_shutdown(struct mpr_softc *sc)
1304 {
1305 	u16 volume_mapping_flags;
1306 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1307 	struct dev_mapping_table *mt_entry;
1308 	u32 start_idx, end_idx;
1309 	unsigned int id, found_volume = 0;
1310 	struct mpr_command *cm;
1311 	Mpi2RaidActionRequest_t	*action;
1312 	target_id_t targetid;
1313 	struct mprsas_target *target;
1314 
1315 	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1316 
1317 	/* is IR firmware build loaded? */
1318 	if (!sc->ir_firmware)
1319 		goto out;
1320 
1321 	/* are there any volumes?  Look at IR target IDs. */
1322 	// TODO-later, this should be looked up in the RAID config structure
1323 	// when it is implemented.
1324 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1325 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1326 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1327 		start_idx = 0;
1328 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1329 			start_idx = 1;
1330 	} else
1331 		start_idx = sc->max_devices - sc->max_volumes;
1332 	end_idx = start_idx + sc->max_volumes - 1;
1333 
1334 	for (id = start_idx; id < end_idx; id++) {
1335 		mt_entry = &sc->mapping_table[id];
1336 		if ((mt_entry->physical_id != 0) &&
1337 		    (mt_entry->missing_count == 0)) {
1338 			found_volume = 1;
1339 			break;
1340 		}
1341 	}
1342 
1343 	if (!found_volume)
1344 		goto out;
1345 
1346 	if ((cm = mpr_alloc_command(sc)) == NULL) {
1347 		printf("%s: command alloc failed\n", __func__);
1348 		goto out;
1349 	}
1350 
1351 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1352 	action->Function = MPI2_FUNCTION_RAID_ACTION;
1353 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1354 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1355 	mpr_lock(sc);
1356 	mpr_wait_command(sc, cm, 5, CAN_SLEEP);
1357 	mpr_unlock(sc);
1358 
1359 	/*
1360 	 * Don't check for reply, just leave.
1361 	 */
1362 	if (cm)
1363 		mpr_free_command(sc, cm);
1364 
1365 out:
1366 	/*
1367 	 * All of the targets must have the correct value set for
1368 	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1369 	 *
1370 	 * The possible values for the 'enable_ssu' variable are:
1371 	 * 0: disable to SSD and HDD
1372 	 * 1: disable only to HDD (default)
1373 	 * 2: disable only to SSD
1374 	 * 3: enable to SSD and HDD
1375 	 * anything else will default to 1.
1376 	 */
1377 	for (targetid = 0; targetid < sc->facts->MaxTargets; targetid++) {
1378 		target = &sc->sassc->targets[targetid];
1379 		if (target->handle == 0x0) {
1380 			continue;
1381 		}
1382 
1383 		if (target->supports_SSU) {
1384 			switch (sc->enable_ssu) {
1385 			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1386 				target->stop_at_shutdown = FALSE;
1387 				break;
1388 			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1389 				target->stop_at_shutdown = TRUE;
1390 				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1391 					target->stop_at_shutdown = FALSE;
1392 				}
1393 				break;
1394 			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1395 				target->stop_at_shutdown = TRUE;
1396 				break;
1397 			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1398 			default:
1399 				target->stop_at_shutdown = TRUE;
1400 				if ((target->flags &
1401 				    MPR_TARGET_IS_SATA_SSD) == 0) {
1402 					target->stop_at_shutdown = FALSE;
1403 				}
1404 				break;
1405 			}
1406 		}
1407 	}
1408 	mprsas_SSU_to_SATA_devices(sc);
1409 }
1410