1/*-
2 * Copyright (c) 2011-2015 LSI Corp.
3 * Copyright (c) 2013-2016 Avago Technologies
4 * Copyright 2000-2020 Broadcom Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * Broadcom Inc. (LSI) MPT-Fusion Host Adapter FreeBSD
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD$");
33
34/* Communications core for Avago Technologies (LSI) MPT3 */
35
36/* TODO Move headers to mprvar */
37#include <sys/types.h>
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/kernel.h>
41#include <sys/selinfo.h>
42#include <sys/module.h>
43#include <sys/bus.h>
44#include <sys/conf.h>
45#include <sys/bio.h>
46#include <sys/malloc.h>
47#include <sys/uio.h>
48#include <sys/sysctl.h>
49#include <sys/endian.h>
50#include <sys/proc.h>
51#include <sys/queue.h>
52#include <sys/kthread.h>
53#include <sys/taskqueue.h>
54#include <sys/sbuf.h>
55#include <sys/reboot.h>
56
57#include <machine/bus.h>
58#include <machine/resource.h>
59#include <sys/rman.h>
60
61#include <machine/stdarg.h>
62
63#include <cam/cam.h>
64#include <cam/cam_ccb.h>
65#include <cam/cam_debug.h>
66#include <cam/cam_sim.h>
67#include <cam/cam_xpt_sim.h>
68#include <cam/cam_xpt_periph.h>
69#include <cam/cam_periph.h>
70#include <cam/scsi/scsi_all.h>
71#include <cam/scsi/scsi_message.h>
72
73#include <dev/mpr/mpi/mpi2_type.h>
74#include <dev/mpr/mpi/mpi2.h>
75#include <dev/mpr/mpi/mpi2_ioc.h>
76#include <dev/mpr/mpi/mpi2_sas.h>
77#include <dev/mpr/mpi/mpi2_pci.h>
78#include <dev/mpr/mpi/mpi2_cnfg.h>
79#include <dev/mpr/mpi/mpi2_init.h>
80#include <dev/mpr/mpi/mpi2_raid.h>
81#include <dev/mpr/mpi/mpi2_tool.h>
82#include <dev/mpr/mpr_ioctl.h>
83#include <dev/mpr/mprvar.h>
84#include <dev/mpr/mpr_table.h>
85#include <dev/mpr/mpr_sas.h>
86
87/* For Hashed SAS Address creation for SATA Drives */
88#define MPT2SAS_SN_LEN 20
89#define MPT2SAS_MN_LEN 40
90
91struct mpr_fw_event_work {
92	u16			event;
93	void			*event_data;
94	TAILQ_ENTRY(mpr_fw_event_work)	ev_link;
95};
96
97union _sata_sas_address {
98	u8 wwid[8];
99	struct {
100		u32 high;
101		u32 low;
102	} word;
103};
104
105/*
106 * define the IDENTIFY DEVICE structure
107 */
108struct _ata_identify_device_data {
109	u16 reserved1[10];	/* 0-9 */
110	u16 serial_number[10];	/* 10-19 */
111	u16 reserved2[7];	/* 20-26 */
112	u16 model_number[20];	/* 27-46*/
113	u16 reserved3[170];	/* 47-216 */
114	u16 rotational_speed;	/* 217 */
115	u16 reserved4[38];	/* 218-255 */
116};
117static u32 event_count;
118static void mprsas_fw_work(struct mpr_softc *sc,
119    struct mpr_fw_event_work *fw_event);
120static void mprsas_fw_event_free(struct mpr_softc *,
121    struct mpr_fw_event_work *);
122static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
123static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
124    u8 linkrate);
125static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
126    Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
127    u32 devinfo);
128static void mprsas_ata_id_timeout(struct mpr_softc *, struct mpr_command *);
129int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
130    u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
131static int mprsas_volume_add(struct mpr_softc *sc,
132    u16 handle);
133static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto);
134static void mprsas_stop_unit_done(struct cam_periph *periph,
135    union ccb *done_ccb);
136
137void
138mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
139    MPI2_EVENT_NOTIFICATION_REPLY *event)
140{
141	struct mpr_fw_event_work *fw_event;
142	u16 sz;
143
144	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
145	MPR_DPRINT_EVENT(sc, sas, event);
146	mprsas_record_event(sc, event);
147
148	fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
149	     M_ZERO|M_NOWAIT);
150	if (!fw_event) {
151		printf("%s: allocate failed for fw_event\n", __func__);
152		return;
153	}
154	sz = le16toh(event->EventDataLength) * 4;
155	fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
156	if (!fw_event->event_data) {
157		printf("%s: allocate failed for event_data\n", __func__);
158		free(fw_event, M_MPR);
159		return;
160	}
161
162	bcopy(event->EventData, fw_event->event_data, sz);
163	fw_event->event = event->Event;
164	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
165	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
166	    event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
167	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
168	    sc->track_mapping_events)
169		sc->pending_map_events++;
170
171	/*
172	 * When wait_for_port_enable flag is set, make sure that all the events
173	 * are processed. Increment the startup_refcount and decrement it after
174	 * events are processed.
175	 */
176	if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
177	    event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
178	    event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
179	    sc->wait_for_port_enable)
180		mprsas_startup_increment(sc->sassc);
181
182	TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
183	taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
184}
185
186static void
187mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
188{
189
190	free(fw_event->event_data, M_MPR);
191	free(fw_event, M_MPR);
192}
193
194/**
195 * _mpr_fw_work - delayed task for processing firmware events
196 * @sc: per adapter object
197 * @fw_event: The fw_event_work object
198 * Context: user.
199 *
200 * Return nothing.
201 */
202static void
203mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
204{
205	struct mprsas_softc *sassc;
206	sassc = sc->sassc;
207
208	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
209	    event_count++, __func__, fw_event->event);
210	switch (fw_event->event) {
211	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
212	{
213		MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
214		MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
215		uint8_t i;
216
217		data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
218		    fw_event->event_data;
219
220		mpr_mapping_topology_change_event(sc, fw_event->event_data);
221
222		for (i = 0; i < data->NumEntries; i++) {
223			phy = &data->PHY[i];
224			switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
225			case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
226				if (mprsas_add_device(sc,
227				    le16toh(phy->AttachedDevHandle),
228				    phy->LinkRate)) {
229					mpr_dprint(sc, MPR_ERROR, "%s: "
230					    "failed to add device with handle "
231					    "0x%x\n", __func__,
232					    le16toh(phy->AttachedDevHandle));
233					mprsas_prepare_remove(sassc, le16toh(
234					    phy->AttachedDevHandle));
235				}
236				break;
237			case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
238				mprsas_prepare_remove(sassc, le16toh(
239				    phy->AttachedDevHandle));
240				break;
241			case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
242			case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
243			case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
244			default:
245				break;
246			}
247		}
248		/*
249		 * refcount was incremented for this event in
250		 * mprsas_evt_handler.  Decrement it here because the event has
251		 * been processed.
252		 */
253		mprsas_startup_decrement(sassc);
254		break;
255	}
256	case MPI2_EVENT_SAS_DISCOVERY:
257	{
258		MPI2_EVENT_DATA_SAS_DISCOVERY *data;
259
260		data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
261
262		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
263			mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
264		if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
265			mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
266			sassc->flags &= ~MPRSAS_IN_DISCOVERY;
267			mprsas_discovery_end(sassc);
268		}
269		break;
270	}
271	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
272	{
273		Mpi2EventDataSasEnclDevStatusChange_t *data;
274		data = (Mpi2EventDataSasEnclDevStatusChange_t *)
275		    fw_event->event_data;
276		mpr_mapping_enclosure_dev_status_change_event(sc,
277		    fw_event->event_data);
278		break;
279	}
280	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
281	{
282		Mpi2EventIrConfigElement_t *element;
283		int i;
284		u8 foreign_config, reason;
285		u16 elementType;
286		Mpi2EventDataIrConfigChangeList_t *event_data;
287		struct mprsas_target *targ;
288		unsigned int id;
289
290		event_data = fw_event->event_data;
291		foreign_config = (le32toh(event_data->Flags) &
292		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
293
294		element =
295		    (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
296		id = mpr_mapping_get_raid_tid_from_handle(sc,
297		    element->VolDevHandle);
298
299		mpr_mapping_ir_config_change_event(sc, event_data);
300		for (i = 0; i < event_data->NumElements; i++, element++) {
301			reason = element->ReasonCode;
302			elementType = le16toh(element->ElementFlags) &
303			    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
304			/*
305			 * check for element type of Phys Disk or Hot Spare
306			 */
307			if ((elementType !=
308			    MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
309			    && (elementType !=
310			    MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
311				// do next element
312				goto skip_fp_send;
313
314			/*
315			 * check for reason of Hide, Unhide, PD Created, or PD
316			 * Deleted
317			 */
318			if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
319			    (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
320			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
321			    (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
322				goto skip_fp_send;
323
324			// check for a reason of Hide or PD Created
325			if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
326			    (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
327			{
328				// build RAID Action message
329				Mpi2RaidActionRequest_t	*action;
330				Mpi2RaidActionReply_t *reply = NULL;
331				struct mpr_command *cm;
332				int error = 0;
333				if ((cm = mpr_alloc_command(sc)) == NULL) {
334					printf("%s: command alloc failed\n",
335					    __func__);
336					return;
337				}
338
339				mpr_dprint(sc, MPR_EVENT, "Sending FP action "
340				    "from "
341				    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
342				    ":\n");
343				action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
344				action->Function = MPI2_FUNCTION_RAID_ACTION;
345				action->Action =
346				    MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
347				action->PhysDiskNum = element->PhysDiskNum;
348				cm->cm_desc.Default.RequestFlags =
349				    MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
350				error = mpr_request_polled(sc, &cm);
351				if (cm != NULL)
352					reply = (Mpi2RaidActionReply_t *)
353					    cm->cm_reply;
354				if (error || (reply == NULL)) {
355					/* FIXME */
356					/*
357					 * If the poll returns error then we
358					 * need to do diag reset
359					 */
360					printf("%s: poll for page completed "
361					    "with error %d", __func__, error);
362				}
363				if (reply && (le16toh(reply->IOCStatus) &
364				    MPI2_IOCSTATUS_MASK) !=
365				    MPI2_IOCSTATUS_SUCCESS) {
366					mpr_dprint(sc, MPR_ERROR, "%s: error "
367					    "sending RaidActionPage; "
368					    "iocstatus = 0x%x\n", __func__,
369					    le16toh(reply->IOCStatus));
370				}
371
372				if (cm)
373					mpr_free_command(sc, cm);
374			}
375skip_fp_send:
376			mpr_dprint(sc, MPR_EVENT, "Received "
377			    "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
378			    "code %x:\n", element->ReasonCode);
379			switch (element->ReasonCode) {
380			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
381			case MPI2_EVENT_IR_CHANGE_RC_ADDED:
382				if (!foreign_config) {
383					if (mprsas_volume_add(sc,
384					    le16toh(element->VolDevHandle))) {
385						printf("%s: failed to add RAID "
386						    "volume with handle 0x%x\n",
387						    __func__, le16toh(element->
388						    VolDevHandle));
389					}
390				}
391				break;
392			case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
393			case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
394				/*
395				 * Rescan after volume is deleted or removed.
396				 */
397				if (!foreign_config) {
398					if (id == MPR_MAP_BAD_ID) {
399						printf("%s: could not get ID "
400						    "for volume with handle "
401						    "0x%04x\n", __func__,
402						    le16toh(element->
403						    VolDevHandle));
404						break;
405					}
406
407					targ = &sassc->targets[id];
408					targ->handle = 0x0;
409					targ->encl_slot = 0x0;
410					targ->encl_handle = 0x0;
411					targ->encl_level_valid = 0x0;
412					targ->encl_level = 0x0;
413					targ->connector_name[0] = ' ';
414					targ->connector_name[1] = ' ';
415					targ->connector_name[2] = ' ';
416					targ->connector_name[3] = ' ';
417					targ->exp_dev_handle = 0x0;
418					targ->phy_num = 0x0;
419					targ->linkrate = 0x0;
420					mprsas_rescan_target(sc, targ);
421					printf("RAID target id 0x%x removed\n",
422					    targ->tid);
423				}
424				break;
425			case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
426			case MPI2_EVENT_IR_CHANGE_RC_HIDE:
427				/*
428				 * Phys Disk of a volume has been created.  Hide
429				 * it from the OS.
430				 */
431				targ = mprsas_find_target_by_handle(sassc, 0,
432				    element->PhysDiskDevHandle);
433				if (targ == NULL)
434					break;
435				targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
436				mprsas_rescan_target(sc, targ);
437				break;
438			case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
439				/*
440				 * Phys Disk of a volume has been deleted.
441				 * Expose it to the OS.
442				 */
443				if (mprsas_add_device(sc,
444				    le16toh(element->PhysDiskDevHandle), 0)) {
445					printf("%s: failed to add device with "
446					    "handle 0x%x\n", __func__,
447					    le16toh(element->
448					    PhysDiskDevHandle));
449					mprsas_prepare_remove(sassc,
450					    le16toh(element->
451					    PhysDiskDevHandle));
452				}
453				break;
454			}
455		}
456		/*
457		 * refcount was incremented for this event in
458		 * mprsas_evt_handler.  Decrement it here because the event has
459		 * been processed.
460		 */
461		mprsas_startup_decrement(sassc);
462		break;
463	}
464	case MPI2_EVENT_IR_VOLUME:
465	{
466		Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
467
468		/*
469		 * Informational only.
470		 */
471		mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
472		switch (event_data->ReasonCode) {
473		case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
474  			mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
475  			    "changed from 0x%x to 0x%x for Volome with "
476 			    "handle 0x%x", le32toh(event_data->PreviousValue),
477 			    le32toh(event_data->NewValue),
478 			    le16toh(event_data->VolDevHandle));
479			break;
480		case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
481  			mpr_dprint(sc, MPR_EVENT, "   Volume Status "
482  			    "changed from 0x%x to 0x%x for Volome with "
483 			    "handle 0x%x", le32toh(event_data->PreviousValue),
484 			    le32toh(event_data->NewValue),
485 			    le16toh(event_data->VolDevHandle));
486			break;
487		case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
488  			mpr_dprint(sc, MPR_EVENT, "   Volume State "
489  			    "changed from 0x%x to 0x%x for Volome with "
490 			    "handle 0x%x", le32toh(event_data->PreviousValue),
491 			    le32toh(event_data->NewValue),
492 			    le16toh(event_data->VolDevHandle));
493				u32 state;
494				struct mprsas_target *targ;
495				state = le32toh(event_data->NewValue);
496				switch (state) {
497				case MPI2_RAID_VOL_STATE_MISSING:
498				case MPI2_RAID_VOL_STATE_FAILED:
499					mprsas_prepare_volume_remove(sassc,
500					    event_data->VolDevHandle);
501					break;
502
503				case MPI2_RAID_VOL_STATE_ONLINE:
504				case MPI2_RAID_VOL_STATE_DEGRADED:
505				case MPI2_RAID_VOL_STATE_OPTIMAL:
506					targ =
507					    mprsas_find_target_by_handle(sassc,
508					    0, event_data->VolDevHandle);
509					if (targ) {
510						printf("%s %d: Volume handle "
511						    "0x%x is already added \n",
512						    __func__, __LINE__,
513						    event_data->VolDevHandle);
514						break;
515					}
516					if (mprsas_volume_add(sc,
517					    le16toh(event_data->
518					    VolDevHandle))) {
519						printf("%s: failed to add RAID "
520						    "volume with handle 0x%x\n",
521						    __func__, le16toh(
522						    event_data->VolDevHandle));
523					}
524					break;
525				default:
526					break;
527				}
528			break;
529		default:
530			break;
531		}
532		break;
533	}
534	case MPI2_EVENT_IR_PHYSICAL_DISK:
535	{
536		Mpi2EventDataIrPhysicalDisk_t *event_data =
537		    fw_event->event_data;
538		struct mprsas_target *targ;
539
540		/*
541		 * Informational only.
542		 */
543		mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
544		switch (event_data->ReasonCode) {
545		case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
546  			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
547  			    "changed from 0x%x to 0x%x for Phys Disk Number "
548  			    "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
549 			    "%d", le32toh(event_data->PreviousValue),
550 			    le32toh(event_data->NewValue),
551			    event_data->PhysDiskNum,
552 			    le16toh(event_data->PhysDiskDevHandle),
553 			    le16toh(event_data->EnclosureHandle),
554			    le16toh(event_data->Slot));
555			break;
556		case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
557  			mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
558  			    "from 0x%x to 0x%x for Phys Disk Number %d and "
559  			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
560 			    le32toh(event_data->PreviousValue),
561 			    le32toh(event_data->NewValue),
562			    event_data->PhysDiskNum,
563 			    le16toh(event_data->PhysDiskDevHandle),
564 			    le16toh(event_data->EnclosureHandle),
565			    le16toh(event_data->Slot));
566			break;
567		case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
568  			mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
569  			    "from 0x%x to 0x%x for Phys Disk Number %d and "
570  			    "handle 0x%x at Enclosure handle 0x%x, Slot %d",
571 			    le32toh(event_data->PreviousValue),
572 			    le32toh(event_data->NewValue),
573			    event_data->PhysDiskNum,
574 			    le16toh(event_data->PhysDiskDevHandle),
575 			    le16toh(event_data->EnclosureHandle),
576			    le16toh(event_data->Slot));
577			switch (event_data->NewValue) {
578				case MPI2_RAID_PD_STATE_ONLINE:
579				case MPI2_RAID_PD_STATE_DEGRADED:
580				case MPI2_RAID_PD_STATE_REBUILDING:
581				case MPI2_RAID_PD_STATE_OPTIMAL:
582				case MPI2_RAID_PD_STATE_HOT_SPARE:
583					targ = mprsas_find_target_by_handle(
584					    sassc, 0,
585					    event_data->PhysDiskDevHandle);
586					if (targ) {
587						targ->flags |=
588						    MPR_TARGET_FLAGS_RAID_COMPONENT;
589						printf("%s %d: Found Target "
590						    "for handle 0x%x.\n",
591						    __func__, __LINE__ ,
592						    event_data->
593						    PhysDiskDevHandle);
594					}
595				break;
596				case MPI2_RAID_PD_STATE_OFFLINE:
597				case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
598				case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
599				default:
600					targ = mprsas_find_target_by_handle(
601					    sassc, 0,
602					    event_data->PhysDiskDevHandle);
603					if (targ) {
604						targ->flags |=
605					    ~MPR_TARGET_FLAGS_RAID_COMPONENT;
606						printf("%s %d: Found Target "
607						    "for handle 0x%x.  \n",
608						    __func__, __LINE__ ,
609						    event_data->
610						    PhysDiskDevHandle);
611					}
612				break;
613			}
614		default:
615			break;
616		}
617		break;
618	}
619	case MPI2_EVENT_IR_OPERATION_STATUS:
620	{
621		Mpi2EventDataIrOperationStatus_t *event_data =
622		    fw_event->event_data;
623
624		/*
625		 * Informational only.
626		 */
627		mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
628		mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
629		    "percent complete for Volume with handle 0x%x",
630		    event_data->RAIDOperation, event_data->PercentComplete,
631		    le16toh(event_data->VolDevHandle));
632		break;
633	}
634	case MPI2_EVENT_TEMP_THRESHOLD:
635	{
636		pMpi2EventDataTemperature_t	temp_event;
637
638		temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
639
640		/*
641		 * The Temp Sensor Count must be greater than the event's Sensor
642		 * Num to be valid.  If valid, print the temp thresholds that
643		 * have been exceeded.
644		 */
645		if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
646			mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
647			    "%s %s %s %s exceeded for Sensor: %d !!!\n",
648			    ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
649			    ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
650			    ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
651			    ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
652			    temp_event->SensorNum);
653			mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
654			    "%d\n", temp_event->CurrentTemperature);
655		}
656		break;
657	}
658	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
659	{
660		pMpi26EventDataActiveCableExcept_t	ace_event_data;
661		ace_event_data =
662		    (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
663
664		switch(ace_event_data->ReasonCode) {
665		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
666		{
667			mpr_printf(sc, "Currently a cable with "
668			    "ReceptacleID %d cannot be powered and device "
669			    "connected to this active cable will not be seen. "
670			    "This active cable requires %d mW of power.\n",
671			    ace_event_data->ReceptacleID,
672			    ace_event_data->ActiveCablePowerRequirement);
673			break;
674		}
675		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
676		{
677			mpr_printf(sc, "Currently a cable with "
678			    "ReceptacleID %d is not running at optimal speed "
679			    "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
680			break;
681		}
682		default:
683			break;
684		}
685		break;
686	}
687	case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
688	{
689		pMpi26EventDataPCIeDeviceStatusChange_t	pcie_status_event_data;
690		pcie_status_event_data =
691		   (pMpi26EventDataPCIeDeviceStatusChange_t)fw_event->event_data;
692
693		switch (pcie_status_event_data->ReasonCode) {
694		case MPI26_EVENT_PCIDEV_STAT_RC_PCIE_HOT_RESET_FAILED:
695		{
696			mpr_printf(sc, "PCIe Host Reset failed on DevHandle "
697			    "0x%x\n", pcie_status_event_data->DevHandle);
698			break;
699		}
700		default:
701			break;
702		}
703		break;
704	}
705	case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
706	{
707		pMpi25EventDataSasDeviceDiscoveryError_t discovery_error_data;
708		uint64_t sas_address;
709
710		discovery_error_data =
711		    (pMpi25EventDataSasDeviceDiscoveryError_t)
712		    fw_event->event_data;
713
714		sas_address = discovery_error_data->SASAddress.High;
715		sas_address = (sas_address << 32) |
716		    discovery_error_data->SASAddress.Low;
717
718		switch(discovery_error_data->ReasonCode) {
719		case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
720		{
721			mpr_printf(sc, "SMP command failed during discovery "
722			    "for expander with SAS Address %jx and "
723			    "handle 0x%x.\n", sas_address,
724			    discovery_error_data->DevHandle);
725			break;
726		}
727		case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
728		{
729			mpr_printf(sc, "SMP command timed out during "
730			    "discovery for expander with SAS Address %jx and "
731			    "handle 0x%x.\n", sas_address,
732			    discovery_error_data->DevHandle);
733			break;
734		}
735		default:
736			break;
737		}
738		break;
739	}
740	case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
741	{
742		MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
743		MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
744		uint8_t i, link_rate;
745		uint16_t handle;
746
747		data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
748		    fw_event->event_data;
749
750		mpr_mapping_pcie_topology_change_event(sc,
751		    fw_event->event_data);
752
753		for (i = 0; i < data->NumEntries; i++) {
754			port_entry = &data->PortEntry[i];
755			handle = le16toh(port_entry->AttachedDevHandle);
756			link_rate = port_entry->CurrentPortInfo &
757			    MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
758			switch (port_entry->PortStatus) {
759			case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
760				if (link_rate <
761				    MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
762					mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
763					    "add PCIe device with handle 0x%x "
764					    "with unknown link rate.\n",
765					    __func__, handle);
766					break;
767				}
768				if (mprsas_add_pcie_device(sc, handle,
769				    link_rate)) {
770					mpr_dprint(sc, MPR_ERROR, "%s: failed "
771					    "to add PCIe device with handle "
772					    "0x%x\n", __func__, handle);
773					mprsas_prepare_remove(sassc, handle);
774				}
775				break;
776			case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
777				mprsas_prepare_remove(sassc, handle);
778				break;
779			case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
780			case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
781			case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
782			default:
783				break;
784			}
785		}
786		/*
787		 * refcount was incremented for this event in
788		 * mprsas_evt_handler.  Decrement it here because the event has
789		 * been processed.
790		 */
791		mprsas_startup_decrement(sassc);
792		break;
793	}
794	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
795	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
796	default:
797		mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
798		    fw_event->event);
799		break;
800
801	}
802	mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
803	    __func__, fw_event->event);
804	mprsas_fw_event_free(sc, fw_event);
805}
806
807void
808mprsas_firmware_event_work(void *arg, int pending)
809{
810	struct mpr_fw_event_work *fw_event;
811	struct mpr_softc *sc;
812
813	sc = (struct mpr_softc *)arg;
814	mpr_lock(sc);
815	while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
816		TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
817		mprsas_fw_work(sc, fw_event);
818	}
819	mpr_unlock(sc);
820}
821
822static int
823mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
824{
825	char devstring[80];
826	struct mprsas_softc *sassc;
827	struct mprsas_target *targ;
828	Mpi2ConfigReply_t mpi_reply;
829	Mpi2SasDevicePage0_t config_page;
830	uint64_t sas_address, parent_sas_address = 0;
831	u32 device_info, parent_devinfo = 0;
832	unsigned int id;
833	int ret = 1, error = 0, i;
834	struct mprsas_lun *lun;
835	u8 is_SATA_SSD = 0;
836	struct mpr_command *cm;
837
838	sassc = sc->sassc;
839	mprsas_startup_increment(sassc);
840	if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
841	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
842		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
843		    "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
844		    handle, mpi_reply.IOCStatus);
845		error = ENXIO;
846		goto out;
847	}
848
849	device_info = le32toh(config_page.DeviceInfo);
850
851	if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
852	    && (le16toh(config_page.ParentDevHandle) != 0)) {
853		Mpi2ConfigReply_t tmp_mpi_reply;
854		Mpi2SasDevicePage0_t parent_config_page;
855
856		if (mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
857		    &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
858		    le16toh(config_page.ParentDevHandle)) != 0) {
859			mpr_dprint(sc, MPR_MAPPING|MPR_FAULT,
860			    "Error reading parent SAS device %#x page0, "
861			    "iocstatus= 0x%x\n",
862			    le16toh(config_page.ParentDevHandle),
863			    tmp_mpi_reply.IOCStatus);
864		} else {
865			parent_sas_address = parent_config_page.SASAddress.High;
866			parent_sas_address = (parent_sas_address << 32) |
867			    parent_config_page.SASAddress.Low;
868			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
869		}
870	}
871	/* TODO Check proper endianness */
872	sas_address = config_page.SASAddress.High;
873	sas_address = (sas_address << 32) | config_page.SASAddress.Low;
874	mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address from SAS device "
875	    "page0 = %jx\n", handle, sas_address);
876
877	/*
878	 * Always get SATA Identify information because this is used to
879	 * determine if Start/Stop Unit should be sent to the drive when the
880	 * system is shutdown.
881	 */
882	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
883		ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
884		    handle, device_info, &is_SATA_SSD);
885		if (ret) {
886			mpr_dprint(sc, MPR_MAPPING|MPR_ERROR,
887			    "%s: failed to get disk type (SSD or HDD) for SATA "
888			    "device with handle 0x%04x\n",
889			    __func__, handle);
890		} else {
891			mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address "
892			    "from SATA device = %jx\n", handle, sas_address);
893		}
894	}
895
896	/*
897	 * use_phynum:
898	 *  1 - use the PhyNum field as a fallback to the mapping logic
899	 *  0 - never use the PhyNum field
900	 * -1 - only use the PhyNum field
901	 *
902	 * Note that using the Phy number to map a device can cause device adds
903	 * to fail if multiple enclosures/expanders are in the topology. For
904	 * example, if two devices are in the same slot number in two different
905	 * enclosures within the topology, only one of those devices will be
906	 * added. PhyNum mapping should not be used if multiple enclosures are
907	 * in the topology.
908	 */
909	id = MPR_MAP_BAD_ID;
910	if (sc->use_phynum != -1)
911		id = mpr_mapping_get_tid(sc, sas_address, handle);
912	if (id == MPR_MAP_BAD_ID) {
913		if ((sc->use_phynum == 0) ||
914		    ((id = config_page.PhyNum) > sassc->maxtargets)) {
915			mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
916			    "Could not get ID for device with handle 0x%04x\n",
917			    __FILE__, __LINE__, __func__, handle);
918			error = ENXIO;
919			goto out;
920		}
921	}
922	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
923	    __func__, id);
924
925	/*
926	 * Only do the ID check and reuse check if the target is not from a
927	 * RAID Component. For Physical Disks of a Volume, the ID will be reused
928	 * when a volume is deleted because the mapping entry for the PD will
929	 * still be in the mapping table. The ID check should not be done here
930	 * either since this PD is already being used.
931	 */
932	targ = &sassc->targets[id];
933	if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
934		if (mprsas_check_id(sassc, id) != 0) {
935			mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
936			    "Excluding target id %d\n", id);
937			error = ENXIO;
938			goto out;
939		}
940
941		if (targ->handle != 0x0) {
942			mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
943			    "target id %d handle 0x%04x\n", id, targ->handle);
944			error = ENXIO;
945			goto out;
946		}
947	}
948
949	targ->devinfo = device_info;
950	targ->devname = le32toh(config_page.DeviceName.High);
951	targ->devname = (targ->devname << 32) |
952	    le32toh(config_page.DeviceName.Low);
953	targ->encl_handle = le16toh(config_page.EnclosureHandle);
954	targ->encl_slot = le16toh(config_page.Slot);
955	targ->encl_level = config_page.EnclosureLevel;
956	targ->connector_name[0] = config_page.ConnectorName[0];
957	targ->connector_name[1] = config_page.ConnectorName[1];
958	targ->connector_name[2] = config_page.ConnectorName[2];
959	targ->connector_name[3] = config_page.ConnectorName[3];
960	targ->handle = handle;
961	targ->parent_handle = le16toh(config_page.ParentDevHandle);
962	targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
963	targ->parent_sasaddr = le64toh(parent_sas_address);
964	targ->parent_devinfo = parent_devinfo;
965	targ->tid = id;
966	targ->linkrate = (linkrate>>4);
967	targ->flags = 0;
968	if (is_SATA_SSD) {
969		targ->flags = MPR_TARGET_IS_SATA_SSD;
970	}
971	if ((le16toh(config_page.Flags) &
972	    MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
973	    (le16toh(config_page.Flags) &
974	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
975		targ->scsi_req_desc_type =
976		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
977	}
978	if (le16toh(config_page.Flags) &
979	    MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
980		targ->encl_level_valid = TRUE;
981	}
982	TAILQ_INIT(&targ->commands);
983	TAILQ_INIT(&targ->timedout_commands);
984	while (!SLIST_EMPTY(&targ->luns)) {
985		lun = SLIST_FIRST(&targ->luns);
986		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
987		free(lun, M_MPR);
988	}
989	SLIST_INIT(&targ->luns);
990
991	mpr_describe_devinfo(targ->devinfo, devstring, 80);
992	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
993	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
994	    mpr_describe_table(mpr_linkrate_names, targ->linkrate),
995	    targ->handle, targ->encl_handle, targ->encl_slot);
996	if (targ->encl_level_valid) {
997		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
998		    "and connector name (%4s)\n", targ->encl_level,
999		    targ->connector_name);
1000	}
1001#if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1002    (__FreeBSD_version < 902502)
1003	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1004#endif
1005		mprsas_rescan_target(sc, targ);
1006	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1007
1008	/*
1009	 * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
1010	 * If so, send a Target Reset TM to the target that was just created.
1011	 * An Abort Task TM should be used instead of a Target Reset, but that
1012	 * would be much more difficult because targets have not been fully
1013	 * discovered yet, and LUN's haven't been setup.  So, just reset the
1014	 * target instead of the LUN.
1015	 */
1016	for (i = 1; i < sc->num_reqs; i++) {
1017		cm = &sc->commands[i];
1018		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1019			targ->timeouts++;
1020			cm->cm_flags |= MPR_CM_FLAGS_TIMEDOUT;
1021
1022			if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
1023				mpr_dprint(sc, MPR_INFO, "%s: sending Target "
1024				    "Reset for stuck SATA identify command "
1025				    "(cm = %p)\n", __func__, cm);
1026				targ->tm->cm_targ = targ;
1027				mprsas_send_reset(sc, targ->tm,
1028				    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
1029			} else {
1030				mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
1031				    "tm for Target Reset after SATA ID command "
1032				    "timed out (cm %p)\n", cm);
1033			}
1034			/*
1035			 * No need to check for more since the target is
1036			 * already being reset.
1037			 */
1038			break;
1039		}
1040	}
1041out:
1042	/*
1043	 * Free the commands that may not have been freed from the SATA ID call
1044	 */
1045	for (i = 1; i < sc->num_reqs; i++) {
1046		cm = &sc->commands[i];
1047		if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
1048			free(cm->cm_data, M_MPR);
1049			mpr_free_command(sc, cm);
1050		}
1051	}
1052	mprsas_startup_decrement(sassc);
1053	return (error);
1054}
1055
1056int
1057mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
1058    u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
1059{
1060	Mpi2SataPassthroughReply_t mpi_reply;
1061	int i, rc, try_count;
1062	u32 *bufferptr;
1063	union _sata_sas_address hash_address;
1064	struct _ata_identify_device_data ata_identify;
1065	u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
1066	u32 ioc_status;
1067	u8 sas_status;
1068
1069	memset(&ata_identify, 0, sizeof(ata_identify));
1070	memset(&mpi_reply, 0, sizeof(mpi_reply));
1071	try_count = 0;
1072	do {
1073		rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
1074		    (char *)&ata_identify, sizeof(ata_identify), device_info);
1075		try_count++;
1076		ioc_status = le16toh(mpi_reply.IOCStatus)
1077		    & MPI2_IOCSTATUS_MASK;
1078		sas_status = mpi_reply.SASStatus;
1079		switch (ioc_status) {
1080		case MPI2_IOCSTATUS_SUCCESS:
1081			break;
1082		case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
1083			/* No sense sleeping.  this error won't get better */
1084			break;
1085		default:
1086			if (sc->spinup_wait_time > 0) {
1087				mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
1088				    "after SATA ID error to wait for spinup\n",
1089				    sc->spinup_wait_time);
1090				msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
1091				    "mprid", sc->spinup_wait_time * hz);
1092			}
1093		}
1094	} while (((rc && (rc != EWOULDBLOCK)) ||
1095	    (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
1096	    || sas_status) && (try_count < 5));
1097
1098	if (rc == 0 && !ioc_status && !sas_status) {
1099		mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
1100		    "successfully for handle = 0x%x with try_count = %d\n",
1101		    __func__, handle, try_count);
1102	} else {
1103		mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
1104		    __func__, handle);
1105		return -1;
1106	}
1107	/* Copy & byteswap the 40 byte model number to a buffer */
1108	for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
1109		buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
1110		buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
1111	}
1112	/* Copy & byteswap the 20 byte serial number to a buffer */
1113	for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
1114		buffer[MPT2SAS_MN_LEN + i] =
1115		    ((u8 *)ata_identify.serial_number)[i + 1];
1116		buffer[MPT2SAS_MN_LEN + i + 1] =
1117		    ((u8 *)ata_identify.serial_number)[i];
1118	}
1119	bufferptr = (u32 *)buffer;
1120	/* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
1121	 * so loop through the first 56 bytes (7*8),
1122	 * and then add in the last dword.
1123	 */
1124	hash_address.word.low  = 0;
1125	hash_address.word.high = 0;
1126	for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
1127		hash_address.word.low += *bufferptr;
1128		bufferptr++;
1129		hash_address.word.high += *bufferptr;
1130		bufferptr++;
1131	}
1132	/* Add the last dword */
1133	hash_address.word.low += *bufferptr;
1134	/* Make sure the hash doesn't start with 5, because it could clash
1135	 * with a SAS address. Change 5 to a D.
1136	 */
1137	if ((hash_address.word.high & 0x000000F0) == (0x00000050))
1138		hash_address.word.high |= 0x00000080;
1139	*sas_address = (u64)hash_address.wwid[0] << 56 |
1140	    (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
1141	    (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
1142	    (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
1143	    (u64)hash_address.wwid[7];
1144	if (ata_identify.rotational_speed == 1) {
1145		*is_SATA_SSD = 1;
1146	}
1147
1148	return 0;
1149}
1150
1151static int
1152mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
1153    Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
1154{
1155	Mpi2SataPassthroughRequest_t *mpi_request;
1156	Mpi2SataPassthroughReply_t *reply;
1157	struct mpr_command *cm;
1158	char *buffer;
1159	int error = 0;
1160
1161	buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
1162	if (!buffer)
1163		return ENOMEM;
1164
1165	if ((cm = mpr_alloc_command(sc)) == NULL) {
1166		free(buffer, M_MPR);
1167		return (EBUSY);
1168	}
1169	mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
1170	bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
1171	mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
1172	mpi_request->VF_ID = 0;
1173	mpi_request->DevHandle = htole16(handle);
1174	mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
1175	    MPI2_SATA_PT_REQ_PT_FLAGS_READ);
1176	mpi_request->DataLength = htole32(sz);
1177	mpi_request->CommandFIS[0] = 0x27;
1178	mpi_request->CommandFIS[1] = 0x80;
1179	mpi_request->CommandFIS[2] =  (devinfo &
1180	    MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
1181	cm->cm_sge = &mpi_request->SGL;
1182	cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
1183	cm->cm_flags = MPR_CM_FLAGS_DATAIN;
1184	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1185	cm->cm_data = buffer;
1186	cm->cm_length = htole32(sz);
1187
1188	/*
1189	 * Use a custom handler to avoid reinit'ing the controller on timeout.
1190	 * This fixes a problem where the FW does not send a reply sometimes
1191	 * when a bad disk is in the topology. So, this is used to timeout the
1192	 * command so that processing can continue normally.
1193	 */
1194	cm->cm_timeout_handler = mprsas_ata_id_timeout;
1195
1196	error = mpr_wait_command(sc, &cm, MPR_ATA_ID_TIMEOUT, CAN_SLEEP);
1197
1198	/* mprsas_ata_id_timeout does not reset controller */
1199	KASSERT(cm != NULL, ("%s: surprise command freed", __func__));
1200
1201	reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
1202	if (error || (reply == NULL)) {
1203		/* FIXME */
1204		/*
1205		 * If the request returns an error then we need to do a diag
1206		 * reset
1207		 */
1208		mpr_dprint(sc, MPR_INFO|MPR_FAULT|MPR_MAPPING,
1209		    "Request for SATA PASSTHROUGH page completed with error %d\n",
1210		    error);
1211		error = ENXIO;
1212		goto out;
1213	}
1214	bcopy(buffer, id_buffer, sz);
1215	bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
1216	if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
1217	    MPI2_IOCSTATUS_SUCCESS) {
1218		mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
1219		    "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
1220		    handle, reply->IOCStatus);
1221		error = ENXIO;
1222		goto out;
1223	}
1224out:
1225	/*
1226	 * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
1227	 * it.  The command and buffer will be freed after sending an Abort
1228	 * Task TM.
1229	 */
1230	if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0) {
1231		mpr_free_command(sc, cm);
1232		free(buffer, M_MPR);
1233	}
1234	return (error);
1235}
1236
1237static void
1238mprsas_ata_id_timeout(struct mpr_softc *sc, struct mpr_command *cm)
1239{
1240
1241	mpr_dprint(sc, MPR_INFO, "%s ATA ID command timeout cm %p sc %p\n",
1242	    __func__, cm, sc);
1243
1244	/*
1245	 * The Abort Task cannot be sent from here because the driver has not
1246	 * completed setting up targets.  Instead, the command is flagged so
1247	 * that special handling will be used to send the abort. Now that
1248	 * this command has timed out, it's no longer in the queue.
1249	 */
1250	cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
1251	cm->cm_state = MPR_CM_STATE_BUSY;
1252}
1253
1254static int
1255mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
1256{
1257	char devstring[80];
1258	struct mprsas_softc *sassc;
1259	struct mprsas_target *targ;
1260	Mpi2ConfigReply_t mpi_reply;
1261	Mpi26PCIeDevicePage0_t config_page;
1262	Mpi26PCIeDevicePage2_t config_page2;
1263	uint64_t pcie_wwid, parent_wwid = 0;
1264	u32 device_info, parent_devinfo = 0;
1265	unsigned int id;
1266	int error = 0;
1267	struct mprsas_lun *lun;
1268
1269	sassc = sc->sassc;
1270	mprsas_startup_increment(sassc);
1271	if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
1272	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1273		printf("%s: error reading PCIe device page0\n", __func__);
1274		error = ENXIO;
1275		goto out;
1276	}
1277
1278	device_info = le32toh(config_page.DeviceInfo);
1279
1280	if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
1281	    && (le16toh(config_page.ParentDevHandle) != 0)) {
1282		Mpi2ConfigReply_t tmp_mpi_reply;
1283		Mpi26PCIeDevicePage0_t parent_config_page;
1284
1285		if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
1286		     &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1287		     le16toh(config_page.ParentDevHandle)))) {
1288			printf("%s: error reading PCIe device %#x page0\n",
1289			    __func__, le16toh(config_page.ParentDevHandle));
1290		} else {
1291			parent_wwid = parent_config_page.WWID.High;
1292			parent_wwid = (parent_wwid << 32) |
1293			    parent_config_page.WWID.Low;
1294			parent_devinfo = le32toh(parent_config_page.DeviceInfo);
1295		}
1296	}
1297	/* TODO Check proper endianness */
1298	pcie_wwid = config_page.WWID.High;
1299	pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
1300	mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
1301	    pcie_wwid);
1302
1303	if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
1304	     MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
1305		printf("%s: error reading PCIe device page2\n", __func__);
1306		error = ENXIO;
1307		goto out;
1308	}
1309
1310	id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
1311	if (id == MPR_MAP_BAD_ID) {
1312		mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
1313		    "Could not get ID for device with handle 0x%04x\n",
1314		    __FILE__, __LINE__, __func__, handle);
1315		error = ENXIO;
1316		goto out;
1317	}
1318	mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
1319	    __func__, id);
1320
1321	if (mprsas_check_id(sassc, id) != 0) {
1322		mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
1323		    "Excluding target id %d\n", id);
1324		error = ENXIO;
1325		goto out;
1326	}
1327
1328	mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
1329	    pcie_wwid);
1330	targ = &sassc->targets[id];
1331	targ->devinfo = device_info;
1332	targ->encl_handle = le16toh(config_page.EnclosureHandle);
1333	targ->encl_slot = le16toh(config_page.Slot);
1334	targ->encl_level = config_page.EnclosureLevel;
1335	targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
1336	targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
1337	targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
1338	targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
1339	targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
1340	targ->MDTS = config_page2.MaximumDataTransferSize;
1341	if (targ->is_nvme)
1342		targ->controller_reset_timeout = config_page2.ControllerResetTO;
1343	/*
1344	 * Assume always TRUE for encl_level_valid because there is no valid
1345	 * flag for PCIe.
1346	 */
1347	targ->encl_level_valid = TRUE;
1348	targ->handle = handle;
1349	targ->parent_handle = le16toh(config_page.ParentDevHandle);
1350	targ->sasaddr = mpr_to_u64(&config_page.WWID);
1351	targ->parent_sasaddr = le64toh(parent_wwid);
1352	targ->parent_devinfo = parent_devinfo;
1353	targ->tid = id;
1354	targ->linkrate = linkrate;
1355	targ->flags = 0;
1356	if ((le16toh(config_page.Flags) &
1357	    MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) &&
1358	    (le16toh(config_page.Flags) &
1359	    MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
1360		targ->scsi_req_desc_type =
1361		    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
1362	}
1363	TAILQ_INIT(&targ->commands);
1364	TAILQ_INIT(&targ->timedout_commands);
1365	while (!SLIST_EMPTY(&targ->luns)) {
1366		lun = SLIST_FIRST(&targ->luns);
1367		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1368		free(lun, M_MPR);
1369	}
1370	SLIST_INIT(&targ->luns);
1371
1372	mpr_describe_devinfo(targ->devinfo, devstring, 80);
1373	mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
1374	    "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
1375	    mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
1376	    targ->handle, targ->encl_handle, targ->encl_slot);
1377	if (targ->encl_level_valid) {
1378		mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
1379		    "and connector name (%4s)\n", targ->encl_level,
1380		    targ->connector_name);
1381	}
1382#if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1383    (__FreeBSD_version < 902502)
1384	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1385#endif
1386		mprsas_rescan_target(sc, targ);
1387	mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
1388
1389out:
1390	mprsas_startup_decrement(sassc);
1391	return (error);
1392}
1393
1394static int
1395mprsas_volume_add(struct mpr_softc *sc, u16 handle)
1396{
1397	struct mprsas_softc *sassc;
1398	struct mprsas_target *targ;
1399	u64 wwid;
1400	unsigned int id;
1401	int error = 0;
1402	struct mprsas_lun *lun;
1403
1404	sassc = sc->sassc;
1405	mprsas_startup_increment(sassc);
1406	/* wwid is endian safe */
1407	mpr_config_get_volume_wwid(sc, handle, &wwid);
1408	if (!wwid) {
1409		printf("%s: invalid WWID; cannot add volume to mapping table\n",
1410		    __func__);
1411		error = ENXIO;
1412		goto out;
1413	}
1414
1415	id = mpr_mapping_get_raid_tid(sc, wwid, handle);
1416	if (id == MPR_MAP_BAD_ID) {
1417		printf("%s: could not get ID for volume with handle 0x%04x and "
1418		    "WWID 0x%016llx\n", __func__, handle,
1419		    (unsigned long long)wwid);
1420		error = ENXIO;
1421		goto out;
1422	}
1423
1424	targ = &sassc->targets[id];
1425	targ->tid = id;
1426	targ->handle = handle;
1427	targ->devname = wwid;
1428	TAILQ_INIT(&targ->commands);
1429	TAILQ_INIT(&targ->timedout_commands);
1430	while (!SLIST_EMPTY(&targ->luns)) {
1431		lun = SLIST_FIRST(&targ->luns);
1432		SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1433		free(lun, M_MPR);
1434	}
1435	SLIST_INIT(&targ->luns);
1436#if ((__FreeBSD_version >= 1000000) && (__FreeBSD_version < 1000039)) || \
1437    (__FreeBSD_version < 902502)
1438	if ((sassc->flags & MPRSAS_IN_STARTUP) == 0)
1439#endif
1440		mprsas_rescan_target(sc, targ);
1441	mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1442	    targ->tid, wwid);
1443out:
1444	mprsas_startup_decrement(sassc);
1445	return (error);
1446}
1447
1448/**
1449 * mprsas_SSU_to_SATA_devices
1450 * @sc: per adapter object
1451 *
1452 * Looks through the target list and issues a StartStopUnit SCSI command to each
1453 * SATA direct-access device.  This helps to ensure that data corruption is
1454 * avoided when the system is being shut down.  This must be called after the IR
1455 * System Shutdown RAID Action is sent if in IR mode.
1456 *
1457 * Return nothing.
1458 */
1459static void
1460mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto)
1461{
1462	struct mprsas_softc *sassc = sc->sassc;
1463	union ccb *ccb;
1464	path_id_t pathid = cam_sim_path(sassc->sim);
1465	target_id_t targetid;
1466	struct mprsas_target *target;
1467	char path_str[64];
1468	int timeout;
1469
1470	mpr_lock(sc);
1471
1472	/*
1473	 * For each target, issue a StartStopUnit command to stop the device.
1474	 */
1475	sc->SSU_started = TRUE;
1476	sc->SSU_refcount = 0;
1477	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1478		target = &sassc->targets[targetid];
1479		if (target->handle == 0x0) {
1480			continue;
1481		}
1482
1483		/*
1484		 * The stop_at_shutdown flag will be set if this device is
1485		 * a SATA direct-access end device.
1486		 */
1487		if (target->stop_at_shutdown) {
1488			ccb = xpt_alloc_ccb_nowait();
1489			if (ccb == NULL) {
1490				mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
1491				    "to stop unit.\n");
1492				return;
1493			}
1494
1495			if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
1496			    pathid, targetid, CAM_LUN_WILDCARD) !=
1497			    CAM_REQ_CMP) {
1498				mpr_dprint(sc, MPR_ERROR, "Unable to create "
1499				    "path to stop unit.\n");
1500				xpt_free_ccb(ccb);
1501				return;
1502			}
1503			xpt_path_string(ccb->ccb_h.path, path_str,
1504			    sizeof(path_str));
1505
1506			mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
1507			    "handle %d\n", path_str, target->handle);
1508
1509			/*
1510			 * Issue a START STOP UNIT command for the target.
1511			 * Increment the SSU counter to be used to count the
1512			 * number of required replies.
1513			 */
1514			mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
1515			sc->SSU_refcount++;
1516			ccb->ccb_h.target_id =
1517			    xpt_path_target_id(ccb->ccb_h.path);
1518			ccb->ccb_h.ppriv_ptr1 = sassc;
1519			scsi_start_stop(&ccb->csio,
1520			    /*retries*/0,
1521			    mprsas_stop_unit_done,
1522			    MSG_SIMPLE_Q_TAG,
1523			    /*start*/FALSE,
1524			    /*load/eject*/0,
1525			    /*immediate*/FALSE,
1526			    MPR_SENSE_LEN,
1527			    /*timeout*/10000);
1528			xpt_action(ccb);
1529		}
1530	}
1531
1532	mpr_unlock(sc);
1533
1534	/*
1535	 * Timeout after 60 seconds by default or 10 seconds if howto has
1536	 * RB_NOSYNC set which indicates we're likely handling a panic.
1537	 */
1538	timeout = 600;
1539	if (howto & RB_NOSYNC)
1540		timeout = 100;
1541
1542	/*
1543	 * Wait until all of the SSU commands have completed or time
1544	 * has expired. Pause for 100ms each time through.  If any
1545	 * command times out, the target will be reset in the SCSI
1546	 * command timeout routine.
1547	 */
1548	while (sc->SSU_refcount > 0) {
1549		pause("mprwait", hz/10);
1550		if (SCHEDULER_STOPPED())
1551			xpt_sim_poll(sassc->sim);
1552
1553		if (--timeout == 0) {
1554			mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
1555			    "for SSU commands to complete.\n");
1556			break;
1557		}
1558	}
1559}
1560
1561static void
1562mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1563{
1564	struct mprsas_softc *sassc;
1565	char path_str[64];
1566
1567	if (done_ccb == NULL)
1568		return;
1569
1570	sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1571
1572	xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1573	mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
1574	    path_str);
1575
1576	/*
1577	 * Nothing more to do except free the CCB and path.  If the command
1578	 * timed out, an abort reset, then target reset will be issued during
1579	 * the SCSI Command process.
1580	 */
1581	xpt_free_path(done_ccb->ccb_h.path);
1582	xpt_free_ccb(done_ccb);
1583}
1584
1585/**
1586 * mprsas_ir_shutdown - IR shutdown notification
1587 * @sc: per adapter object
1588 *
1589 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1590 * the host system is shutting down.
1591 *
1592 * Return nothing.
1593 */
1594void
1595mprsas_ir_shutdown(struct mpr_softc *sc, int howto)
1596{
1597	u16 volume_mapping_flags;
1598	u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1599	struct dev_mapping_table *mt_entry;
1600	u32 start_idx, end_idx;
1601	unsigned int id, found_volume = 0;
1602	struct mpr_command *cm;
1603	Mpi2RaidActionRequest_t	*action;
1604	target_id_t targetid;
1605	struct mprsas_target *target;
1606
1607	mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
1608
1609	/* is IR firmware build loaded? */
1610	if (!sc->ir_firmware)
1611		goto out;
1612
1613	/* are there any volumes?  Look at IR target IDs. */
1614	// TODO-later, this should be looked up in the RAID config structure
1615	// when it is implemented.
1616	volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1617	    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1618	if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1619		start_idx = 0;
1620		if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1621			start_idx = 1;
1622	} else
1623		start_idx = sc->max_devices - sc->max_volumes;
1624	end_idx = start_idx + sc->max_volumes - 1;
1625
1626	for (id = start_idx; id < end_idx; id++) {
1627		mt_entry = &sc->mapping_table[id];
1628		if ((mt_entry->physical_id != 0) &&
1629		    (mt_entry->missing_count == 0)) {
1630			found_volume = 1;
1631			break;
1632		}
1633	}
1634
1635	if (!found_volume)
1636		goto out;
1637
1638	if ((cm = mpr_alloc_command(sc)) == NULL) {
1639		printf("%s: command alloc failed\n", __func__);
1640		goto out;
1641	}
1642
1643	action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1644	action->Function = MPI2_FUNCTION_RAID_ACTION;
1645	action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1646	cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1647	mpr_lock(sc);
1648	mpr_wait_command(sc, &cm, 5, CAN_SLEEP);
1649	mpr_unlock(sc);
1650
1651	/*
1652	 * Don't check for reply, just leave.
1653	 */
1654	if (cm)
1655		mpr_free_command(sc, cm);
1656
1657out:
1658	/*
1659	 * All of the targets must have the correct value set for
1660	 * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1661	 *
1662	 * The possible values for the 'enable_ssu' variable are:
1663	 * 0: disable to SSD and HDD
1664	 * 1: disable only to HDD (default)
1665	 * 2: disable only to SSD
1666	 * 3: enable to SSD and HDD
1667	 * anything else will default to 1.
1668	 */
1669	for (targetid = 0; targetid < sc->max_devices; targetid++) {
1670		target = &sc->sassc->targets[targetid];
1671		if (target->handle == 0x0) {
1672			continue;
1673		}
1674
1675		if (target->supports_SSU) {
1676			switch (sc->enable_ssu) {
1677			case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
1678				target->stop_at_shutdown = FALSE;
1679				break;
1680			case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
1681				target->stop_at_shutdown = TRUE;
1682				if (target->flags & MPR_TARGET_IS_SATA_SSD) {
1683					target->stop_at_shutdown = FALSE;
1684				}
1685				break;
1686			case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
1687				target->stop_at_shutdown = TRUE;
1688				break;
1689			case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
1690			default:
1691				target->stop_at_shutdown = TRUE;
1692				if ((target->flags &
1693				    MPR_TARGET_IS_SATA_SSD) == 0) {
1694					target->stop_at_shutdown = FALSE;
1695				}
1696				break;
1697			}
1698		}
1699	}
1700	mprsas_SSU_to_SATA_devices(sc, howto);
1701}
1702