xref: /dragonfly/sys/dev/raid/mps/mps_sas_lsi.c (revision e5a92d33)
1 /*-
2  * Copyright (c) 2011 LSI Corp.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * LSI MPT-Fusion Host Adapter FreeBSD
27  *
28  * $FreeBSD: src/sys/dev/mps/mps_sas_lsi.c,v 1.1 2012/01/26 18:17:21 ken Exp $
29  */
30 
31 /* Communications core for LSI MPT2 */
32 
33 /* TODO Move headers to mpsvar */
34 #include <sys/types.h>
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/bus.h>
40 #include <sys/conf.h>
41 #include <sys/eventhandler.h>
42 #include <sys/bio.h>
43 #include <sys/malloc.h>
44 #include <sys/uio.h>
45 #include <sys/sysctl.h>
46 #include <sys/endian.h>
47 #include <sys/queue.h>
48 #include <sys/kthread.h>
49 #include <sys/taskqueue.h>
50 #include <sys/sbuf.h>
51 
52 #include <sys/rman.h>
53 
54 #include <machine/stdarg.h>
55 
56 #include <bus/cam/cam.h>
57 #include <bus/cam/cam_ccb.h>
58 #include <bus/cam/cam_debug.h>
59 #include <bus/cam/cam_sim.h>
60 #include <bus/cam/cam_xpt_sim.h>
61 #include <bus/cam/cam_xpt_periph.h>
62 #include <bus/cam/cam_periph.h>
63 #include <bus/cam/scsi/scsi_all.h>
64 #include <bus/cam/scsi/scsi_message.h>
65 
66 #include <dev/raid/mps/mpi/mpi2_type.h>
67 #include <dev/raid/mps/mpi/mpi2.h>
68 #include <dev/raid/mps/mpi/mpi2_ioc.h>
69 #include <dev/raid/mps/mpi/mpi2_sas.h>
70 #include <dev/raid/mps/mpi/mpi2_cnfg.h>
71 #include <dev/raid/mps/mpi/mpi2_init.h>
72 #include <dev/raid/mps/mpi/mpi2_raid.h>
73 #include <dev/raid/mps/mpi/mpi2_tool.h>
74 #include <dev/raid/mps/mps_ioctl.h>
75 #include <dev/raid/mps/mpsvar.h>
76 #include <dev/raid/mps/mps_table.h>
77 #include <dev/raid/mps/mps_sas.h>
78 
79 /* For Hashed SAS Address creation for SATA Drives */
80 #define MPT2SAS_SN_LEN 20
81 #define MPT2SAS_MN_LEN 40
82 
83 struct mps_fw_event_work {
84 	u16			event;
85 	void			*event_data;
86 	TAILQ_ENTRY(mps_fw_event_work)	ev_link;
87 };
88 
89 union _sata_sas_address {
90 	u8 wwid[8];
91 	struct {
92 		u32 high;
93 		u32 low;
94 	} word;
95 };
96 
97 /*
98  * define the IDENTIFY DEVICE structure
99  */
100 struct _ata_identify_device_data {
101 	u16 reserved1[10];	/* 0-9 */
102 	u16 serial_number[10];	/* 10-19 */
103 	u16 reserved2[7];	/* 20-26 */
104 	u16 model_number[20];	/* 27-46*/
105 	u16 reserved3[209];	/* 47-255*/
106 };
107 
108 static u32 event_count;
109 
110 static void mpssas_fw_work(struct mps_softc *sc,
111     struct mps_fw_event_work *fw_event);
112 static void mpssas_fw_event_free(struct mps_softc *,
113     struct mps_fw_event_work *);
114 static int mpssas_add_device(struct mps_softc *sc, u16 handle, u8 linkrate);
115 static int mpssas_get_sata_identify(struct mps_softc *sc, u16 handle,
116     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
117     u32 devinfo);
118 int mpssas_get_sas_address_for_sata_disk(struct mps_softc *sc,
119     u64 *sas_address, u16 handle, u32 device_info);
120 static int mpssas_volume_add(struct mps_softc *sc,
121     u16 handle);
122 
123 void
124 mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
125     MPI2_EVENT_NOTIFICATION_REPLY *event)
126 {
127 	struct mps_fw_event_work *fw_event;
128 	u16 sz;
129 
130 	mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
131 	mps_print_evt_sas(sc, event);
132 	mpssas_record_event(sc, event);
133 
134 	fw_event = kmalloc(sizeof(struct mps_fw_event_work), M_MPT2,
135 	     M_ZERO|M_INTWAIT);
136 	if (!fw_event) {
137 		kprintf("%s: allocate failed for fw_event\n", __func__);
138 		return;
139 	}
140 	sz = le16toh(event->EventDataLength) * 4;
141 	fw_event->event_data = kmalloc(sz, M_MPT2, M_ZERO|M_INTWAIT);
142 	if (!fw_event->event_data) {
143 		kprintf("%s: allocate failed for event_data\n", __func__);
144 		kfree(fw_event, M_MPT2);
145 		return;
146 	}
147 
148 	bcopy(event->EventData, fw_event->event_data, sz);
149 	fw_event->event = event->Event;
150 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
151 	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
152 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
153 	    sc->track_mapping_events)
154 		sc->pending_map_events++;
155 
156 	/*
157 	 * When wait_for_port_enable flag is set, make sure that all the events
158 	 * are processed. Increment the startup_refcount and decrement it after
159 	 * events are processed.
160 	 */
161 	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
162 	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
163 	    sc->wait_for_port_enable)
164 		mpssas_startup_increment(sc->sassc);
165 
166 	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
167 	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
168 
169 }
170 
171 static void
172 mpssas_fw_event_free(struct mps_softc *sc, struct mps_fw_event_work *fw_event)
173 {
174 
175 	kfree(fw_event->event_data, M_MPT2);
176 	kfree(fw_event, M_MPT2);
177 }
178 
179 /**
180  * _mps_fw_work - delayed task for processing firmware events
181  * @sc: per adapter object
182  * @fw_event: The fw_event_work object
183  * Context: user.
184  *
185  * Return nothing.
186  */
187 static void
188 mpssas_fw_work(struct mps_softc *sc, struct mps_fw_event_work *fw_event)
189 {
190 	struct mpssas_softc *sassc;
191 	sassc = sc->sassc;
192 
193 	mps_dprint(sc, MPS_INFO, "(%d)->(%s) Working on  Event: [%x]\n",
194 		   event_count++,__func__,fw_event->event);
195 
196 	switch (fw_event->event) {
197 	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
198 	{
199 		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
200 		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
201 		int i;
202 
203 		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
204 		    fw_event->event_data;
205 
206 		mps_mapping_topology_change_event(sc, fw_event->event_data);
207 
208 		for (i = 0; i < data->NumEntries; i++) {
209 			phy = &data->PHY[i];
210 			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
211 			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
212 				if (mpssas_add_device(sc,
213 				    phy->AttachedDevHandle, phy->LinkRate)){
214 					kprintf("%s: failed to add device with "
215 					    "handle 0x%x\n", __func__,
216 					    phy->AttachedDevHandle);
217 					mpssas_prepare_remove(sassc, phy->
218 					    AttachedDevHandle);
219 				}
220 				break;
221 			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
222 				mpssas_prepare_remove(sassc, phy->
223 				    AttachedDevHandle);
224 				break;
225 			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
226 			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
227 			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
228 			default:
229 				break;
230 			}
231 		}
232 		/*
233 		 * refcount was incremented for this event in
234 		 * mpssas_evt_handler.  Decrement it here because the event has
235 		 * been processed.
236 		 */
237 		mpssas_startup_decrement(sassc);
238 		break;
239 	}
240 	case MPI2_EVENT_SAS_DISCOVERY:
241 	{
242 		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
243 
244 		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
245 
246 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
247 			mps_dprint(sc, MPS_TRACE,"SAS discovery start event\n");
248 		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
249 			mps_dprint(sc, MPS_TRACE,"SAS discovery stop event\n");
250 			sassc->flags &= ~MPSSAS_IN_DISCOVERY;
251 			mpssas_discovery_end(sassc);
252 		}
253 		break;
254 	}
255 	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
256 	{
257 		Mpi2EventDataSasEnclDevStatusChange_t *data;
258 		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
259 		    fw_event->event_data;
260 		mps_mapping_enclosure_dev_status_change_event(sc, data);
261 		break;
262 	}
263 	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
264 	{
265 		Mpi2EventIrConfigElement_t *element;
266 		int i;
267 		u8 foreign_config;
268 		Mpi2EventDataIrConfigChangeList_t *event_data;
269 		struct mpssas_target *targ;
270 		unsigned int id;
271 
272 		event_data = fw_event->event_data;
273 		foreign_config = (le32toh(event_data->Flags) &
274 		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
275 
276 		element =
277 		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
278 		id = mps_mapping_get_raid_id_from_handle
279 		    (sc, element->VolDevHandle);
280 
281 		mps_mapping_ir_config_change_event(sc, event_data);
282 
283 		for (i = 0; i < event_data->NumElements; i++, element++) {
284 			switch (element->ReasonCode) {
285 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
286 			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
287 				if (!foreign_config) {
288 					if (mpssas_volume_add(sc, le16toh(element->VolDevHandle))) {
289 						kprintf("%s: failed to add RAID "
290 						    "volume with handle 0x%x\n",
291 						    __func__, le16toh(element->
292 						    VolDevHandle));
293 					}
294 				}
295 				break;
296 			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
297 			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
298 				/*
299 				 * Rescan after volume is deleted or removed.
300 				 */
301 				if (!foreign_config) {
302 					if (id == MPS_MAP_BAD_ID) {
303 						kprintf("%s: could not get ID "
304 						    "for volume with handle "
305 						    "0x%04x\n", __func__,
306 						    element->VolDevHandle);
307 						break;
308 					}
309 
310 					targ = &sassc->targets[id];
311 					targ->handle = 0x0;
312 					targ->encl_slot = 0x0;
313 					targ->encl_handle = 0x0;
314 					targ->exp_dev_handle = 0x0;
315 					targ->phy_num = 0x0;
316 					targ->linkrate = 0x0;
317 					mpssas_rescan_target(sc, targ);
318 					kprintf("RAID target id 0x%x removed\n",
319 					    targ->tid);
320 				}
321 				break;
322 			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
323 			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
324 				/*
325 				 * Phys Disk of a volume has been created.  Hide
326 				 * it from the OS.
327 				 */
328 				targ = mpssas_find_target_by_handle(sassc, 0, element->PhysDiskDevHandle);
329 				if (targ == NULL)
330 					break;
331 				targ->flags |= MPS_TARGET_FLAGS_RAID_COMPONENT;
332 				mpssas_rescan_target(sc, targ);
333 				break;
334 			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
335 				/*
336 				 * Phys Disk of a volume has been deleted.
337 				 * Expose it to the OS.
338 				 */
339 				if (mpssas_add_device(sc,
340 				    element->PhysDiskDevHandle, 0)){
341 					kprintf("%s: failed to add device with "
342 					    "handle 0x%x\n", __func__,
343 					    element->PhysDiskDevHandle);
344 					mpssas_prepare_remove(sassc, element->
345 					    PhysDiskDevHandle);
346 				}
347 				break;
348 			}
349 		}
350 		/*
351 		 * refcount was incremented for this event in
352 		 * mpssas_evt_handler.  Decrement it here because the event has
353 		 * been processed.
354 		 */
355 		mpssas_startup_decrement(sassc);
356 		break;
357 	}
358 	case MPI2_EVENT_IR_VOLUME:
359 	{
360 		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
361 
362 		/*
363 		 * Informational only.
364 		 */
365 		mps_dprint(sc, MPS_INFO, "Received IR Volume event:\n");
366 		switch (event_data->ReasonCode) {
367 		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
368 			mps_dprint(sc, MPS_INFO, "   Volume Settings "
369 			    "changed from 0x%x to 0x%x for Volome with "
370 			    "handle 0x%x", event_data->PreviousValue,
371 			    event_data->NewValue,
372 			    event_data->VolDevHandle);
373 			break;
374 		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
375 			mps_dprint(sc, MPS_INFO, "   Volume Status "
376 			    "changed from 0x%x to 0x%x for Volome with "
377 			    "handle 0x%x", event_data->PreviousValue,
378 			    event_data->NewValue,
379 			    event_data->VolDevHandle);
380 			break;
381 		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
382 			mps_dprint(sc, MPS_INFO, "   Volume State "
383 			    "changed from 0x%x to 0x%x for Volome with "
384 			    "handle 0x%x", event_data->PreviousValue,
385 			    event_data->NewValue,
386 			    event_data->VolDevHandle);
387 			u32 state;
388 			struct mpssas_target *targ;
389 
390 			state = le32toh(event_data->NewValue);
391 			switch (state) {
392 			case MPI2_RAID_VOL_STATE_MISSING:
393 			case MPI2_RAID_VOL_STATE_FAILED:
394 				mpssas_prepare_volume_remove(sassc,
395 							     event_data->VolDevHandle);
396 				break;
397 			case MPI2_RAID_VOL_STATE_ONLINE:
398 			case MPI2_RAID_VOL_STATE_DEGRADED:
399 			case MPI2_RAID_VOL_STATE_OPTIMAL:
400 				targ = mpssas_find_target_by_handle(sassc, 0, event_data->VolDevHandle);
401 				if (targ) {
402 					kprintf("%s %d: Volume handle 0x%x is already added \n",
403 						__func__, __LINE__ , event_data->VolDevHandle);
404 					break;
405 				}
406 				if (mpssas_volume_add(sc, le16toh(event_data->VolDevHandle))) {
407 					kprintf("%s: failed to add RAID "
408 						"volume with handle 0x%x\n",
409 						__func__, le16toh(event_data->
410 						VolDevHandle));
411 				}
412 				break;
413 			default:
414 				break;
415 			}
416 			break;
417 		default:
418 			break;
419 		}
420 		break;
421 	}
422 	case MPI2_EVENT_IR_PHYSICAL_DISK:
423 	{
424 		Mpi2EventDataIrPhysicalDisk_t *event_data =
425 		    fw_event->event_data;
426 		struct mpssas_target *targ;
427 
428 		/*
429 		 * Informational only.
430 		 */
431 		mps_dprint(sc, MPS_INFO, "Received IR Phys Disk event:\n");
432 		switch (event_data->ReasonCode) {
433 		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
434 			mps_dprint(sc, MPS_INFO, "   Phys Disk Settings "
435 			    "changed from 0x%x to 0x%x for Phys Disk Number "
436 			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
437 			    "%d\n", event_data->PreviousValue,
438 			    event_data->NewValue, event_data->PhysDiskNum,
439 			    event_data->PhysDiskDevHandle,
440 			    event_data->EnclosureHandle, event_data->Slot);
441 			break;
442 		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
443 			mps_dprint(sc, MPS_INFO, "   Phys Disk Status changed "
444 			    "from 0x%x to 0x%x for Phys Disk Number %d and "
445 			    "handle 0x%x at Enclosure handle 0x%x, Slot %d\n",
446 			    event_data->PreviousValue, event_data->NewValue,
447 			    event_data->PhysDiskNum,
448 			    event_data->PhysDiskDevHandle,
449 			    event_data->EnclosureHandle, event_data->Slot);
450 			break;
451 		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
452 			mps_dprint(sc, MPS_INFO, "   Phys Disk State changed "
453 			    "from 0x%x to 0x%x for Phys Disk Number %d and "
454 			    "handle 0x%x at Enclosure handle 0x%x, Slot %d\n",
455 			    event_data->PreviousValue, event_data->NewValue,
456 			    event_data->PhysDiskNum,
457 			    event_data->PhysDiskDevHandle,
458 			    event_data->EnclosureHandle, event_data->Slot);
459 			switch (event_data->NewValue) {
460 			case MPI2_RAID_PD_STATE_ONLINE:
461 			case MPI2_RAID_PD_STATE_DEGRADED:
462 			case MPI2_RAID_PD_STATE_REBUILDING:
463 			case MPI2_RAID_PD_STATE_OPTIMAL:
464 			case MPI2_RAID_PD_STATE_HOT_SPARE:
465 				targ = mpssas_find_target_by_handle(sassc, 0,
466 						event_data->PhysDiskDevHandle);
467 				if (targ) {
468 					targ->flags |= MPS_TARGET_FLAGS_RAID_COMPONENT;
469 					kprintf("%s %d: Found Target for handle 0x%x.  \n",
470 						__func__, __LINE__,
471 						event_data->PhysDiskDevHandle);
472 				}
473 				break;
474 			case MPI2_RAID_PD_STATE_OFFLINE:
475 			case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
476 			case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
477 			default:
478 				targ = mpssas_find_target_by_handle(sassc, 0,
479 						event_data->PhysDiskDevHandle);
480 				if (targ) {
481 					targ->flags |= ~MPS_TARGET_FLAGS_RAID_COMPONENT;
482 					kprintf("%s %d: Found Target for handle 0x%x.  \n",
483 						__func__, __LINE__,
484 						event_data->PhysDiskDevHandle);
485 				}
486 				break;
487 			}
488 		default:
489 			break;
490 		}
491 		break;
492 	}
493 	case MPI2_EVENT_IR_OPERATION_STATUS:
494 	{
495 		Mpi2EventDataIrOperationStatus_t *event_data =
496 		    fw_event->event_data;
497 
498 		/*
499 		 * Informational only.
500 		 */
501 		mps_dprint(sc, MPS_INFO, "Received IR Op Status event:\n");
502 		mps_dprint(sc, MPS_INFO, "   RAID Operation of %d is %d "
503 		    "percent complete for Volume with handle 0x%x",
504 		    event_data->RAIDOperation, event_data->PercentComplete,
505 		    event_data->VolDevHandle);
506 		break;
507 	}
508 	case MPI2_EVENT_LOG_ENTRY_ADDED:
509 	{
510 		pMpi2EventDataLogEntryAdded_t	logEntry;
511 		uint16_t			logQualifier;
512 		uint8_t				logCode;
513 
514 		logEntry = (pMpi2EventDataLogEntryAdded_t)fw_event->event_data;
515 		logQualifier = logEntry->LogEntryQualifier;
516 
517 		if (logQualifier == MPI2_WD_LOG_ENTRY) {
518 			logCode = logEntry->LogData[0];
519 
520 			switch (logCode) {
521 			case MPI2_WD_SSD_THROTTLING:
522 				kprintf("WarpDrive Warning: IO Throttling has "
523 				    "occurred in the WarpDrive subsystem. "
524 				    "Check WarpDrive documentation for "
525 				    "additional details\n");
526 				break;
527 			case MPI2_WD_DRIVE_LIFE_WARN:
528 				kprintf("WarpDrive Warning: Program/Erase "
529 				    "Cycles for the WarpDrive subsystem in "
530 				    "degraded range. Check WarpDrive "
531 				    "documentation for additional details\n");
532 				break;
533 			case MPI2_WD_DRIVE_LIFE_DEAD:
534 				kprintf("WarpDrive Fatal Error: There are no "
535 				    "Program/Erase Cycles for the WarpDrive "
536 				    "subsystem. The storage device will be in "
537 				    "read-only mode. Check WarpDrive "
538 				    "documentation for additional details\n");
539 				break;
540 			case MPI2_WD_RAIL_MON_FAIL:
541 				kprintf("WarpDrive Fatal Error: The Backup Rail "
542 				    "Monitor has failed on the WarpDrive "
543 				    "subsystem. Check WarpDrive documentation "
544 				    "for additional details\n");
545 				break;
546 			default:
547 				break;
548 			}
549 		}
550 		break;
551 	}
552 	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
553 	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
554 	default:
555 		mps_dprint(sc, MPS_TRACE,"Unhandled event 0x%0X\n",
556 		    fw_event->event);
557 		break;
558 
559 	}
560 	mps_dprint(sc, MPS_INFO, "(%d)->(%s) Event Free: [%x]\n",event_count,__func__, fw_event->event);
561 	mpssas_fw_event_free(sc, fw_event);
562 }
563 
564 void
565 mpssas_firmware_event_work(void *arg, int pending)
566 {
567 	struct mps_fw_event_work *fw_event;
568 	struct mps_softc *sc;
569 
570 	sc = (struct mps_softc *)arg;
571 	mps_lock(sc);
572 	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
573 		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
574 		mpssas_fw_work(sc, fw_event);
575 	}
576 	mps_unlock(sc);
577 }
578 
579 static int
580 mpssas_add_device(struct mps_softc *sc, u16 handle, u8 linkrate){
581 	char devstring[80];
582 	struct mpssas_softc *sassc;
583 	struct mpssas_target *targ;
584 	Mpi2ConfigReply_t mpi_reply;
585 	Mpi2SasDevicePage0_t config_page;
586 	uint64_t sas_address, sata_sas_address;
587 	uint64_t parent_sas_address = 0;
588 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
589 	u32 device_info, parent_devinfo = 0;
590 	unsigned int id;
591 	int ret;
592 	int error = 0;
593 
594 	sassc = sc->sassc;
595 	mpssas_startup_increment(sassc);
596 	if ((mps_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
597 	     MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
598 		kprintf("%s: error reading SAS device page0\n", __func__);
599 		error = ENXIO;
600 		goto out;
601 	}
602 
603 	device_info = le32toh(config_page.DeviceInfo);
604 
605 	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
606 	 && (config_page.ParentDevHandle != 0)) {
607 		Mpi2ConfigReply_t tmp_mpi_reply;
608 		Mpi2SasDevicePage0_t parent_config_page;
609 
610 		if ((mps_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
611 		     &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
612 		     le16toh(config_page.ParentDevHandle)))) {
613 			kprintf("%s: error reading SAS device %#x page0\n",
614 			       __func__, le16toh(config_page.ParentDevHandle));
615 		} else {
616 			parent_sas_address = parent_config_page.SASAddress.High;
617 			parent_sas_address = (parent_sas_address << 32) |
618 				parent_config_page.SASAddress.Low;
619 			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
620 		}
621 	}
622 	/* TODO Check proper endianess */
623 	sas_address = config_page.SASAddress.High;
624 	sas_address = (sas_address << 32) |
625 	    config_page.SASAddress.Low;
626 
627 	if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE)
628 		    == MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
629 		if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
630 			ret = mpssas_get_sas_address_for_sata_disk(sc,
631 			    &sata_sas_address, handle, device_info);
632 			if (!ret)
633 				id = mps_mapping_get_sas_id(sc,
634 				    sata_sas_address, handle);
635 			else
636 				id = mps_mapping_get_sas_id(sc,
637 				    sas_address, handle);
638 		} else
639 			id = mps_mapping_get_sas_id(sc, sas_address,
640 			    handle);
641 	} else
642 		id = mps_mapping_get_sas_id(sc, sas_address, handle);
643 
644 	if (id == MPS_MAP_BAD_ID) {
645 		kprintf("failure at %s:%d/%s()! Could not get ID for device "
646 		    "with handle 0x%04x\n", __FILE__, __LINE__, __func__,
647 		    handle);
648 		error = ENXIO;
649 		goto out;
650 	}
651 	mps_dprint(sc, MPS_INFO, "SAS Address from SAS device page0 = %jx\n",
652 		   sas_address);
653 	targ = &sassc->targets[id];
654 	targ->devinfo = device_info;
655 	targ->devname = le32toh(config_page.DeviceName.High);
656 	targ->devname = (targ->devname << 32) |
657 	    le32toh(config_page.DeviceName.Low);
658 	targ->encl_handle = le16toh(config_page.EnclosureHandle);
659 	targ->encl_slot = le16toh(config_page.Slot);
660 	targ->handle = handle;
661 	targ->parent_handle = le16toh(config_page.ParentDevHandle);
662 	targ->sasaddr = mps_to_u64(&config_page.SASAddress);
663 	targ->parent_sasaddr = le64toh(parent_sas_address);
664 	targ->parent_devinfo = parent_devinfo;
665 	targ->tid = id;
666 	targ->linkrate = (linkrate>>4);
667 	targ->flags = 0;
668 	TAILQ_INIT(&targ->commands);
669 	TAILQ_INIT(&targ->timedout_commands);
670 	SLIST_INIT(&targ->luns);
671 	mps_describe_devinfo(targ->devinfo, devstring, 80);
672 	mps_dprint(sc, MPS_INFO, "Found device <%s> <%s> <0x%04x> <%d/%d>\n", devstring,
673 	    mps_describe_table(mps_linkrate_names, targ->linkrate),
674 	    targ->handle, targ->encl_handle, targ->encl_slot);
675 	if ((sassc->flags & MPSSAS_IN_STARTUP) == 0)
676 		mpssas_rescan_target(sc, targ);
677 	mps_dprint(sc, MPS_INFO, "Target id 0x%x added\n", targ->tid);
678 out:
679 	mpssas_startup_decrement(sassc);
680 	return (error);
681 
682 }
683 
684 int
685 mpssas_get_sas_address_for_sata_disk(struct mps_softc *sc,
686     u64 *sas_address, u16 handle, u32 device_info)
687 {
688 	Mpi2SataPassthroughReply_t mpi_reply;
689 	int i, rc, try_count;
690 	u32 *bufferptr;
691 	union _sata_sas_address hash_address;
692 	struct _ata_identify_device_data ata_identify;
693 	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
694 	u32 ioc_status;
695 	u8 sas_status;
696 
697 	memset(&ata_identify, 0, sizeof(ata_identify));
698 	try_count = 0;
699 	do {
700 		rc = mpssas_get_sata_identify(sc, handle, &mpi_reply,
701 		    (char *)&ata_identify, sizeof(ata_identify), device_info);
702 		try_count++;
703 		ioc_status = le16toh(mpi_reply.IOCStatus)
704 		    & MPI2_IOCSTATUS_MASK;
705 		sas_status = mpi_reply.SASStatus;
706 	} while ((rc == -EAGAIN || ioc_status || sas_status) &&
707 	    (try_count < 5));
708 
709 	if (rc == 0 && !ioc_status && !sas_status) {
710 		mps_dprint(sc, MPS_INFO, "%s: got SATA identify successfully "
711 			   "for handle = 0x%x with try_count = %d\n",
712 			   __func__, handle, try_count);
713 	} else {
714 		mps_dprint(sc, MPS_INFO, "%s: handle = 0x%x failed\n",
715 			   __func__, handle);
716 		return -1;
717 	}
718 	/* Copy & byteswap the 40 byte model number to a buffer */
719 	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
720 		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
721 		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
722 	}
723 	/* Copy & byteswap the 20 byte serial number to a buffer */
724 	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
725 		buffer[MPT2SAS_MN_LEN + i] =
726 			((u8 *)ata_identify.serial_number)[i + 1];
727 		buffer[MPT2SAS_MN_LEN + i + 1] =
728 			((u8 *)ata_identify.serial_number)[i];
729 	}
730 	bufferptr = (u32 *)buffer;
731 	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
732 	 * so loop through the first 56 bytes (7*8),
733 	 * and then add in the last dword.
734 	 */
735 	hash_address.word.low  = 0;
736 	hash_address.word.high = 0;
737 	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
738 		hash_address.word.low += *bufferptr;
739 		bufferptr++;
740 		hash_address.word.high += *bufferptr;
741 		bufferptr++;
742 	}
743 	/* Add the last dword */
744 	hash_address.word.low += *bufferptr;
745 	/* Make sure the hash doesn't start with 5, because it could clash
746 	 * with a SAS address. Change 5 to a D.
747 	 */
748 	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
749 		hash_address.word.high |= 0x00000080;
750 	*sas_address = (u64)hash_address.wwid[0] << 56 |
751 	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
752 	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
753 	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
754 	    (u64)hash_address.wwid[7];
755 	return 0;
756 }
757 
758 static int
759 mpssas_get_sata_identify(struct mps_softc *sc, u16 handle,
760     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
761 {
762 	Mpi2SataPassthroughRequest_t *mpi_request;
763 	Mpi2SataPassthroughReply_t *reply;
764 	struct mps_command *cm;
765 	char *buffer;
766 	int error = 0;
767 
768 	buffer = kmalloc( sz, M_MPT2, M_INTWAIT | M_ZERO);
769 	if (!buffer)
770 		return ENOMEM;
771 
772 	if ((cm = mps_alloc_command(sc)) == NULL) {
773 		kfree(buffer, M_MPT2);
774 		return (EBUSY);
775 	}
776 	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
777 	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
778 	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
779 	mpi_request->VF_ID = 0;
780 	mpi_request->DevHandle = htole16(handle);
781 	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
782 	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
783 	mpi_request->DataLength = htole32(sz);
784 	mpi_request->CommandFIS[0] = 0x27;
785 	mpi_request->CommandFIS[1] = 0x80;
786 	mpi_request->CommandFIS[2] =  (devinfo &
787 	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
788 	cm->cm_sge = &mpi_request->SGL;
789 	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
790 	cm->cm_flags = MPS_CM_FLAGS_SGE_SIMPLE | MPS_CM_FLAGS_DATAIN;
791 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
792 	cm->cm_data = buffer;
793 	cm->cm_length = htole32(sz);
794 	error = mps_request_polled(sc, cm);
795 	reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
796 	if (error || (reply == NULL)) {
797 		/* FIXME */
798 		/* If the poll returns error then we need to do diag reset */
799 		kprintf("%s: poll for page completed with error %d",
800 		    __func__, error);
801 		error = ENXIO;
802 		goto out;
803 	}
804 	bcopy(buffer, id_buffer, sz);
805 	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
806 	if ((reply->IOCStatus & MPI2_IOCSTATUS_MASK) !=
807 	    MPI2_IOCSTATUS_SUCCESS) {
808 		kprintf("%s: error reading SATA PASSTHRU; iocstatus = 0x%x\n",
809 		    __func__, reply->IOCStatus);
810 		error = ENXIO;
811 		goto out;
812 	}
813 out:
814 	mps_free_command(sc, cm);
815 	kfree(buffer, M_MPT2);
816 	return (error);
817 }
818 
819 static int
820 mpssas_volume_add(struct mps_softc *sc, u16 handle)
821 {
822 	struct mpssas_softc *sassc;
823 	struct mpssas_target *targ;
824 	u64 wwid;
825 	unsigned int id;
826 	int error = 0;
827 
828 	sassc = sc->sassc;
829 	mpssas_startup_increment(sassc);
830 	mps_config_get_volume_wwid(sc, handle, &wwid);
831 	if (!wwid) {
832 		kprintf("%s: invalid WWID; cannot add volume to mapping table\n",
833 		    __func__);
834 		error = ENXIO;
835 		goto out;
836 	}
837 
838 	id = mps_mapping_get_raid_id(sc, wwid, handle);
839 	if (id == MPS_MAP_BAD_ID) {
840 		kprintf("%s: could not get ID for volume with handle 0x%04x and "
841 		    "WWID 0x%016llx\n", __func__, handle,
842 		    (unsigned long long)wwid);
843 		error = ENXIO;
844 		goto out;
845 	}
846 
847 	targ = &sassc->targets[id];
848 	targ->tid = id;
849 	targ->handle = handle;
850 	targ->devname = wwid;
851 	TAILQ_INIT(&targ->commands);
852 	TAILQ_INIT(&targ->timedout_commands);
853 	SLIST_INIT(&targ->luns);
854 	if ((sassc->flags & MPSSAS_IN_STARTUP) == 0)
855 		mpssas_rescan_target(sc, targ);
856 	mps_dprint(sc, MPS_INFO, "RAID target id %d added (WWID = 0x%jx)\n",
857 	    targ->tid, wwid);
858 out:
859 	mpssas_startup_decrement(sassc);
860 	return (error);
861 }
862 
863 /**
864  * mpssas_ir_shutdown - IR shutdown notification
865  * @sc: per adapter object
866  *
867  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
868  * the host system is shutting down.
869  *
870  * Return nothing.
871  */
872 void
873 mpssas_ir_shutdown(struct mps_softc *sc)
874 {
875 	u16 volume_mapping_flags;
876 	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
877 	struct dev_mapping_table *mt_entry;
878 	u32 start_idx, end_idx;
879 	unsigned int id, found_volume = 0;
880 	struct mps_command *cm;
881 	Mpi2RaidActionRequest_t	*action;
882 
883 	mps_lock(sc);
884 
885 	mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
886 
887 	/* is IR firmware build loaded? */
888 	if (!sc->ir_firmware)
889 		goto back;
890 
891 	/* are there any volumes?  Look at IR target IDs. */
892 	// TODO-later, this should be looked up in the RAID config structure
893 	// when it is implemented.
894 	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
895 	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
896 	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
897 		start_idx = 0;
898 		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
899 			start_idx = 1;
900 	} else
901 		start_idx = sc->max_devices - sc->max_volumes;
902 	end_idx = start_idx + sc->max_volumes - 1;
903 
904 	for (id = start_idx; id < end_idx; id++) {
905 		mt_entry = &sc->mapping_table[id];
906 		if ((mt_entry->physical_id != 0) &&
907 		    (mt_entry->missing_count == 0)) {
908 			found_volume = 1;
909 			break;
910 		}
911 	}
912 
913 	if (!found_volume)
914 		goto back;
915 
916 	if ((cm = mps_alloc_command(sc)) == NULL) {
917 		kprintf("%s: command alloc failed\n", __func__);
918 		goto back;
919 	}
920 
921 	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
922 	action->Function = MPI2_FUNCTION_RAID_ACTION;
923 	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
924 	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
925 	mps_lock(sc);
926 	mps_request_polled(sc, cm);
927 	mps_unlock(sc);
928 
929 	/*
930 	 * Don't check for reply, just leave.
931 	 */
932 	if (cm)
933 		mps_free_command(sc, cm);
934 
935 back:
936 	mps_unlock(sc);
937 }
938