Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
/*-
 * Copyright (c) 2015 Netflix, Inc.
 * Written by: Scott Long <scottl@freebsd.org>
 *
 * Copyright (c) 2008 Yahoo!, Inc.
 * All rights reserved.
 * Written by: John Baldwin <jhb@FreeBSD.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__RCSID("$FreeBSD$");

#include <sys/param.h>
#include <sys/errno.h>
#include <err.h>
#include <libutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mpsutil.h"

static char * get_device_speed(uint8_t rate);
static char * get_device_type(uint32_t di);
static int show_all(int ac, char **av);
static int show_devices(int ac, char **av);
static int show_enclosures(int ac, char **av);
static int show_expanders(int ac, char **av);

MPS_TABLE(top, show);

#define	STANDALONE_STATE	"ONLINE"

static int
show_adapter(int ac, char **av)
{
	MPI2_CONFIG_PAGE_SASIOUNIT_0	*sas0;
	MPI2_CONFIG_PAGE_SASIOUNIT_1	*sas1;
	MPI2_SAS_IO_UNIT0_PHY_DATA	*phy0;
	MPI2_SAS_IO_UNIT1_PHY_DATA	*phy1;
	MPI2_CONFIG_PAGE_MAN_0 *man0;
	MPI2_CONFIG_PAGE_BIOS_3 *bios3;
	MPI2_IOC_FACTS_REPLY *facts;
	U16 IOCStatus;
	char *speed, *minspeed, *maxspeed, *isdisabled, *type;
	char devhandle[5], ctrlhandle[5];
	int error, fd, v, i;

	if (ac != 1) {
		warnx("show adapter: extra arguments");
		return (EINVAL);
	}

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	man0 = mps_read_man_page(fd, 0, NULL);
	if (man0 == NULL) {
		error = errno;
		warn("Failed to get controller info");
		return (error);
	}
	if (man0->Header.PageLength < sizeof(*man0) / 4) {
		warnx("Invalid controller info");
		return (EINVAL);
	}
	printf("mp%s%d Adapter:\n", is_mps ? "s": "r", mps_unit);
	printf("       Board Name: %.16s\n", man0->BoardName);
	printf("   Board Assembly: %.16s\n", man0->BoardAssembly);
	printf("        Chip Name: %.16s\n", man0->ChipName);
	printf("    Chip Revision: %.16s\n", man0->ChipRevision);
	free(man0);

	bios3 = mps_read_config_page(fd, MPI2_CONFIG_PAGETYPE_BIOS, 3, 0, NULL);
	if (bios3 == NULL) {
		error = errno;
		warn("Failed to get BIOS page 3 info");
		return (error);
	}
	v = bios3->BiosVersion;
	printf("    BIOS Revision: %d.%02d.%02d.%02d\n",
	    ((v & 0xff000000) >> 24), ((v &0xff0000) >> 16),
	    ((v & 0xff00) >> 8), (v & 0xff));
	free(bios3);

	if ((facts = mps_get_iocfacts(fd)) == NULL) {
		printf("could not get controller IOCFacts\n");
		close(fd);
		return (errno);
	}
	v = facts->FWVersion.Word;
	printf("Firmware Revision: %d.%02d.%02d.%02d\n",
	    ((v & 0xff000000) >> 24), ((v &0xff0000) >> 16),
	    ((v & 0xff00) >> 8), (v & 0xff));
	printf("  Integrated RAID: %s\n",
	    (facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID)
	    ? "yes" : "no");
	free(facts);

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	sas0 = mps_read_extended_config_page(fd,
	    MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
	    MPI2_SASIOUNITPAGE0_PAGEVERSION, 0, 0, &IOCStatus);
	if (sas0 == NULL) {
		error = errno;
		warn("Error retrieving SAS IO Unit page %d", IOCStatus);
		free(sas0);
		close(fd);
		return (error);
	}

	sas1 = mps_read_extended_config_page(fd,
	    MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
	    MPI2_SASIOUNITPAGE1_PAGEVERSION, 1, 0, &IOCStatus);
	if (sas1 == NULL) {
		error = errno;
		warn("Error retrieving SAS IO Unit page %d", IOCStatus);
		free(sas0);
		close(fd);
		return (error);
	}
	printf("\n");

	printf("%-8s%-12s%-11s%-10s%-8s%-7s%-7s%s\n", "PhyNum", "CtlrHandle",
	    "DevHandle", "Disabled", "Speed", "Min", "Max", "Device");
	for (i = 0; i < sas0->NumPhys; i++) {
		phy0 = &sas0->PhyData[i];
		phy1 = &sas1->PhyData[i];
		if (phy0->PortFlags &
		     MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) {
			printf("Discovery still in progress\n");
			continue;
		}
		if (phy0->PhyFlags & MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED)
			isdisabled = "Y";
		else
			isdisabled = "N";

		minspeed = get_device_speed(phy1->MaxMinLinkRate);
		maxspeed = get_device_speed(phy1->MaxMinLinkRate >> 4);
		type = get_device_type(phy0->ControllerPhyDeviceInfo);

		if (phy0->AttachedDevHandle != 0) {
			snprintf(devhandle, 5, "%04x", phy0->AttachedDevHandle);
			snprintf(ctrlhandle, 5, "%04x",
			    phy0->ControllerDevHandle);
			speed = get_device_speed(phy0->NegotiatedLinkRate);
		} else {
			snprintf(devhandle, 5, "    ");
			snprintf(ctrlhandle, 5, "    ");
			speed = "     ";
		}
		printf("%-8d%-12s%-11s%-10s%-8s%-7s%-7s%s\n",
		    i, ctrlhandle, devhandle, isdisabled, speed, minspeed,
		    maxspeed, type);
	}
	free(sas0);
	free(sas1);
	printf("\n");
	close(fd);
	return (0);
}

MPS_COMMAND(show, adapter, show_adapter, "", "display controller information")

static int
show_iocfacts(int ac, char **av)
{
	MPI2_IOC_FACTS_REPLY *facts;
	uint8_t *fb;
	char tmpbuf[128];
	int error, fd;

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	if ((facts = mps_get_iocfacts(fd)) == NULL) {
		printf("could not get controller IOCFacts\n");
		close(fd);
		return (errno);
	}

	fb = (uint8_t *)facts;

#define IOCCAP "\3ScsiTaskFull" "\4DiagTrace" "\5SnapBuf" "\6ExtBuf" \
    "\7EEDP" "\10BiDirTarg" "\11Multicast" "\14TransRetry" "\15IR" \
    "\16EventReplay" "\17RaidAccel" "\20MSIXIndex" "\21HostDisc" \
    "\22FastPath" "\23RDPQArray" "\24AtomicReqDesc" "\25PCIeSRIOV"

	bzero(tmpbuf, sizeof(tmpbuf));
	mps_parse_flags(facts->IOCCapabilities, IOCCAP, tmpbuf, sizeof(tmpbuf));

	printf("          MsgVersion: %d.%d\n",
	    facts->MsgVersion >> 8, facts->MsgVersion & 0xff);
	printf("           MsgLength: %d\n", facts->MsgLength);
	printf("            Function: 0x%x\n", facts->Function);
	printf("       HeaderVersion: %02d,%02d\n",
	    facts->HeaderVersion >> 8, facts->HeaderVersion & 0xff);
	printf("           IOCNumber: %d\n", facts->IOCNumber);
	printf("            MsgFlags: 0x%x\n", facts->MsgFlags);
	printf("               VP_ID: %d\n", facts->VP_ID);
	printf("               VF_ID: %d\n", facts->VF_ID);
	printf("       IOCExceptions: %d\n", facts->IOCExceptions);
	printf("           IOCStatus: %d\n", facts->IOCStatus);
	printf("          IOCLogInfo: 0x%x\n", facts->IOCLogInfo);
	printf("       MaxChainDepth: %d\n", facts->MaxChainDepth);
	printf("             WhoInit: 0x%x\n", facts->WhoInit);
	printf("       NumberOfPorts: %d\n", facts->NumberOfPorts);
	printf("      MaxMSIxVectors: %d\n", facts->MaxMSIxVectors);
	printf("       RequestCredit: %d\n", facts->RequestCredit);
	printf("           ProductID: 0x%x\n", facts->ProductID);
	printf("     IOCCapabilities: 0x%x %s\n", facts->IOCCapabilities,
	    tmpbuf);
	printf("           FWVersion: %02d.%02d.%02d.%02d\n",
	    facts->FWVersion.Struct.Major, facts->FWVersion.Struct.Minor,
	    facts->FWVersion.Struct.Unit, facts->FWVersion.Struct.Dev);
	printf(" IOCRequestFrameSize: %d\n", facts->IOCRequestFrameSize);
	if (is_mps == 0)
		printf(" MaxChainSegmentSize: %d\n", (uint16_t)(fb[0x26]));
	printf("       MaxInitiators: %d\n", facts->MaxInitiators);
	printf("          MaxTargets: %d\n", facts->MaxTargets);
	printf("     MaxSasExpanders: %d\n", facts->MaxSasExpanders);
	printf("       MaxEnclosures: %d\n", facts->MaxEnclosures);

	bzero(tmpbuf, sizeof(tmpbuf));
	mps_parse_flags(facts->ProtocolFlags,
	    "\4NvmeDevices\2ScsiTarget\1ScsiInitiator", tmpbuf, sizeof(tmpbuf));
	printf("       ProtocolFlags: 0x%x %s\n", facts->ProtocolFlags, tmpbuf);
	printf("  HighPriorityCredit: %d\n", facts->HighPriorityCredit);
	printf("MaxRepDescPostQDepth: %d\n",
	    facts->MaxReplyDescriptorPostQueueDepth);
	printf("      ReplyFrameSize: %d\n", facts->ReplyFrameSize);
	printf("          MaxVolumes: %d\n", facts->MaxVolumes);
	printf("        MaxDevHandle: %d\n", facts->MaxDevHandle);
	printf("MaxPersistentEntries: %d\n", facts->MaxPersistentEntries);
	printf("        MinDevHandle: %d\n", facts->MinDevHandle);
	if (is_mps == 0)
		printf(" CurrentHostPageSize: %d\n", (uint8_t)(fb[0x3e]));

	free(facts);
	return (0);
}

MPS_COMMAND(show, iocfacts, show_iocfacts, "", "Show IOC Facts Message");

static int
show_adapters(int ac, char **av)
{
	MPI2_CONFIG_PAGE_MAN_0 *man0;
	MPI2_IOC_FACTS_REPLY *facts;
	int unit, fd, error;

	printf("Device Name\t      Chip Name        Board Name        Firmware\n");
	for (unit = 0; unit < MPS_MAX_UNIT; unit++) {
		fd = mps_open(unit);
		if (fd < 0)
			continue;
		facts = mps_get_iocfacts(fd);
		if (facts == NULL) {
			error = errno;
			warn("Faled to get controller iocfacts");
			close(fd);
			return (error);
		}
		man0 = mps_read_man_page(fd, 0, NULL);
		if (man0 == NULL) {
			error = errno;
			warn("Failed to get controller info");
			close(fd);
			free(facts);
			return (error);
		}
		if (man0->Header.PageLength < sizeof(*man0) / 4) {
			warnx("Invalid controller info");
			close(fd);
			free(man0);
			free(facts);
			return (EINVAL);
		}
		printf("/dev/mp%s%d\t%16s %16s        %08x\n",
		    is_mps ? "s": "r", unit,
		    man0->ChipName, man0->BoardName, facts->FWVersion.Word);
		free(man0);
		free(facts);
		close(fd);
	}
	return (0);
}
MPS_COMMAND(show, adapters, show_adapters, "", "Show a summary of all adapters");

static char *
get_device_type(uint32_t di)
{

	if (di & 0x4000)
		return ("SEP Target    ");
	if (di & 0x2000)
		return ("ATAPI Target  ");
	if (di & 0x400)
		return ("SAS Target    ");
	if (di & 0x200)
		return ("STP Target    ");
	if (di & 0x100)
		return ("SMP Target    ");
	if (di & 0x80)
		return ("SATA Target   ");
	if (di & 0x70)
		return ("SAS Initiator ");
	if (di & 0x8)
		return ("SATA Initiator");
	if ((di & 0x7) == 0)
		return ("No Device     ");
	return ("Unknown Device");
}

static char *
get_enc_type(uint32_t flags, int *issep)
{
	char *type;

	*issep = 0;
	switch (flags & 0xf) {
	case 0x01:
		type = "Direct Attached SES-2";
		*issep = 1;
		break;
	case 0x02:
		type = "Direct Attached SGPIO";
		break;
	case 0x03:
		type = "Expander SGPIO";
		break;
	case 0x04:
		type = "External SES-2";
		*issep = 1;
		break;
	case 0x05:
		type = "Direct Attached GPIO";
		break;
	case 0x0:
	default:
		return ("Unknown");
	}

	return (type);
}

static char *
mps_device_speed[] = {
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	"1.5",
	"3.0",
	"6.0",
	"12 "
};

static char *
get_device_speed(uint8_t rate)
{
	char *speed;

	rate &= 0xf;
	if (rate >= sizeof(mps_device_speed))
		return ("Unk");

	if ((speed = mps_device_speed[rate]) == NULL)
		return ("???");
	return (speed);
}

static char *
mps_page_name[] = {
	"IO Unit",
	"IOC",
	"BIOS",
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	"RAID Volume",
	"Manufacturing",
	"RAID Physical Disk",
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	"SAS IO Unit",
	"SAS Expander",
	"SAS Device",
	"SAS PHY",
	"Log",
	"Enclosure",
	"RAID Configuration",
	"Driver Persistent Mapping",
	"SAS Port",
	"Ethernet Port",
	"Extended Manufacturing"
};

static char *
get_page_name(u_int page)
{
	char *name;

	if (page >= sizeof(mps_page_name))
		return ("Unknown");
	if ((name = mps_page_name[page]) == NULL)
		return ("Unknown");
	return (name);
}

static int
show_all(int ac, char **av)
{
	int error;

	printf("Adapter:\n");
	error = show_adapter(ac, av);
	printf("Devices:\n");
	error = show_devices(ac, av);
	printf("Enclosures:\n");
	error = show_enclosures(ac, av);
	printf("Expanders:\n");
	error = show_expanders(ac, av);
	return (error);
}
MPS_COMMAND(show, all, show_all, "", "Show all devices");

static int
show_devices(int ac, char **av)
{
	MPI2_CONFIG_PAGE_SASIOUNIT_0	*sas0;
	MPI2_SAS_IO_UNIT0_PHY_DATA	*phydata;
	MPI2_CONFIG_PAGE_SAS_DEV_0	*device;
	MPI2_CONFIG_PAGE_EXPANDER_1	*exp1;
	uint16_t IOCStatus, handle, bus, target;
	char *type, *speed, enchandle[5], slot[3], bt[8];
	char buf[256];
	int fd, error, nphys;

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	sas0 = mps_read_extended_config_page(fd,
	    MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
	    MPI2_SASIOUNITPAGE0_PAGEVERSION, 0, 0, &IOCStatus);
	if (sas0 == NULL) {
		error = errno;
		warn("Error retrieving SAS IO Unit page %d", IOCStatus);
		return (error);
	}
	nphys = sas0->NumPhys;

	printf("B____%-5s%-17s%-8s%-10s%-14s%-6s%-5s%-6s%s\n",
	    "T", "SAS Address", "Handle", "Parent", "Device", "Speed",
	    "Enc", "Slot", "Wdt");
	handle = 0xffff;
	while (1) {
		device = mps_read_extended_config_page(fd,
		    MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE,
		    MPI2_SASDEVICE0_PAGEVERSION, 0,
		    MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE | handle,
		    &IOCStatus);
		if (device == NULL) {
			if (IOCStatus == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
				break;
			error = errno;
			warn("Error retrieving device page");
			close(fd);
			return (error);
		}
		handle = device->DevHandle;

		if (device->ParentDevHandle == 0x0) {
			free(device);
			continue;
		}

		bus = 0xffff;
		target = 0xffff;
		error = mps_map_btdh(fd, &handle, &bus, &target);
		if (error) {
			free(device);
			continue;
		}
		if ((bus == 0xffff) || (target == 0xffff))
			snprintf(bt, sizeof(bt), "       ");
		else
			snprintf(bt, sizeof(bt), "%02d   %02d", bus, target);

		type = get_device_type(device->DeviceInfo);

		if (device->PhyNum < nphys) {
			phydata = &sas0->PhyData[device->PhyNum];
			speed = get_device_speed(phydata->NegotiatedLinkRate);
		} else if (device->ParentDevHandle > 0) {
			exp1 = mps_read_extended_config_page(fd,
			    MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER,
			    MPI2_SASEXPANDER1_PAGEVERSION, 1,
			    MPI2_SAS_EXPAND_PGAD_FORM_HNDL_PHY_NUM |
			    (device->PhyNum <<
			    MPI2_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
			    device->ParentDevHandle, &IOCStatus);
			if (exp1 == NULL) {
				if (IOCStatus != MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) {
					error = errno;
					warn("Error retrieving expander page 1: 0x%x",
					    IOCStatus);
					close(fd);
					free(device);
					return (error);
				}
				speed = " ";
			} else {
				speed = get_device_speed(exp1->NegotiatedLinkRate);
				free(exp1);
			}
		} else
			speed = " ";

		if (device->EnclosureHandle != 0) {
			snprintf(enchandle, 5, "%04x", device->EnclosureHandle);
			snprintf(slot, 3, "%02d", device->Slot);
		} else {
			snprintf(enchandle, 5, "    ");
			snprintf(slot, 3, "  ");
		}
		printf("%-10s", bt);
		snprintf(buf, sizeof(buf), "%08x%08x", device->SASAddress.High,
		    device->SASAddress.Low);
		printf("%-17s", buf);
		snprintf(buf, sizeof(buf), "%04x", device->DevHandle);
		printf("%-8s", buf);
		snprintf(buf, sizeof(buf), "%04x", device->ParentDevHandle);
		printf("%-10s", buf);
		printf("%-14s%-6s%-5s%-6s%d\n", type, speed,
		    enchandle, slot, device->MaxPortConnections);
		free(device);
	}
	printf("\n");
	free(sas0);
	close(fd);
	return (0);
}
MPS_COMMAND(show, devices, show_devices, "", "Show attached devices");

static int
show_enclosures(int ac, char **av)
{
	MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 *enc;
	char *type, sepstr[5];
	uint16_t IOCStatus, handle;
	int fd, error, issep;

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	printf("Slots      Logical ID     SEPHandle  EncHandle    Type\n");
	handle = 0xffff;
	while (1) {
		enc = mps_read_extended_config_page(fd,
		    MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE,
		    MPI2_SASENCLOSURE0_PAGEVERSION, 0,
		    MPI2_SAS_ENCLOS_PGAD_FORM_GET_NEXT_HANDLE | handle,
		    &IOCStatus);
		if (enc == NULL) {
			if (IOCStatus == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
				break;
			error = errno;
			warn("Error retrieving enclosure page");
			close(fd);
			return (error);
		}
		type = get_enc_type(enc->Flags, &issep);
		if (issep == 0)
			snprintf(sepstr, 5, "    ");
		else
			snprintf(sepstr, 5, "%04x", enc->SEPDevHandle);
		printf("  %.2d    %08x%08x    %s       %04x     %s\n",
		    enc->NumSlots, enc->EnclosureLogicalID.High,
		    enc->EnclosureLogicalID.Low, sepstr, enc->EnclosureHandle,
		    type);
		handle = enc->EnclosureHandle;
		free(enc);
	}
	printf("\n");
	close(fd);
	return (0);
}
MPS_COMMAND(show, enclosures, show_enclosures, "", "Show attached enclosures");

static int
show_expanders(int ac, char **av)
{
	MPI2_CONFIG_PAGE_EXPANDER_0	*exp0;
	MPI2_CONFIG_PAGE_EXPANDER_1	*exp1;
	uint16_t IOCStatus, handle;
	char enchandle[5], parent[5], rphy[3], rhandle[5];
	char *speed, *min, *max, *type;
	int fd, error, nphys, i;

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	printf("NumPhys   SAS Address     DevHandle   Parent  EncHandle  SAS Level\n");
	handle = 0xffff;
	while (1) {
		exp0 = mps_read_extended_config_page(fd,
		    MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER,
		    MPI2_SASEXPANDER0_PAGEVERSION, 0,
		    MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL | handle,
		    &IOCStatus);
		if (exp0 == NULL) {
			if (IOCStatus == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
				break;
			error = errno;
			warn("Error retrieving expander page 0");
			close(fd);
			return (error);
		}

		nphys = exp0->NumPhys;
		handle = exp0->DevHandle;

		if (exp0->EnclosureHandle == 0x00)
			snprintf(enchandle, 5, "    ");
		else
			snprintf(enchandle, 5, "%04d", exp0->EnclosureHandle);
		if (exp0->ParentDevHandle == 0x0)
			snprintf(parent, 5, "    ");
		else
			snprintf(parent, 5, "%04x", exp0->ParentDevHandle);
		printf("  %02d    %08x%08x    %04x       %s     %s       %d\n",
		    exp0->NumPhys, exp0->SASAddress.High, exp0->SASAddress.Low,
		    exp0->DevHandle, parent, enchandle, exp0->SASLevel);

		printf("\n");
		printf("     Phy  RemotePhy  DevHandle  Speed   Min    Max    Device\n");
		for (i = 0; i < nphys; i++) {
			exp1 = mps_read_extended_config_page(fd,
			    MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER,
			    MPI2_SASEXPANDER1_PAGEVERSION, 1,
			    MPI2_SAS_EXPAND_PGAD_FORM_HNDL_PHY_NUM |
			    (i << MPI2_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
			    exp0->DevHandle, &IOCStatus);
			if (exp1 == NULL) {
				if (IOCStatus !=
				    MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
					warn("Error retrieving expander pg 1");
				continue;
			}
			type = get_device_type(exp1->AttachedDeviceInfo);
			if ((exp1->AttachedDeviceInfo &0x7) == 0) {
				speed = "     ";
				snprintf(rphy, 3, "  ");
				snprintf(rhandle, 5, "     ");
			} else {
				speed = get_device_speed(
				    exp1->NegotiatedLinkRate);
				snprintf(rphy, 3, "%02d",
				    exp1->AttachedPhyIdentifier);
				snprintf(rhandle, 5, "%04x",
				    exp1->AttachedDevHandle);
			}
			min = get_device_speed(exp1->HwLinkRate);
			max = get_device_speed(exp1->HwLinkRate >> 4);
			printf("     %02d     %s         %s     %s  %s  %s  %s\n", exp1->Phy, rphy, rhandle, speed, min, max, type);

			free(exp1);
		}
		free(exp0);
	}

	printf("\n");
	close(fd);
	return (0);
}

MPS_COMMAND(show, expanders, show_expanders, "", "Show attached expanders");

static int
show_cfgpage(int ac, char **av)
{
	MPI2_CONFIG_PAGE_HEADER *hdr;
	MPI2_CONFIG_EXTENDED_PAGE_HEADER *ehdr;
	void *data;
	uint32_t addr;
	uint16_t IOCStatus;
	uint8_t page, num;
	int fd, error, len, attrs;
	char *pgname, *pgattr;

	fd = mps_open(mps_unit);
	if (fd < 0) {
		error = errno;
		warn("mps_open");
		return (error);
	}

	addr = 0;
	num = 0;
	page = 0;

	switch (ac) {
	case 4:
		addr = (uint32_t)strtoul(av[3], NULL, 0);
	case 3:
		num = (uint8_t)strtoul(av[2], NULL, 0);
	case 2:
		page = (uint8_t)strtoul(av[1], NULL, 0);
		break;
	default:
		errno = EINVAL;
		warn("cfgpage: not enough arguments");
		return (EINVAL);
	}

	if (page >= 0x10)
		data = mps_read_extended_config_page(fd, page, 0, num, addr,
		    &IOCStatus);
	 else 
		data = mps_read_config_page(fd, page, num, addr, &IOCStatus);

	if (data == NULL) {
		error = errno;
		warn("Error retrieving cfg page: %s\n",
		    mps_ioc_status(IOCStatus));
		return (error);
	}

	if (page >= 0x10) {
		ehdr = data;
		len = ehdr->ExtPageLength * 4;
		page = ehdr->ExtPageType;
		attrs = ehdr->PageType >> 4;
	} else {
		hdr = data;
		len = hdr->PageLength * 4;
		page = hdr->PageType & 0xf;
		attrs = hdr->PageType >> 4;
	}

	pgname = get_page_name(page);
	if (attrs == 0)
		pgattr = "Read-only";
	else if (attrs == 1)
		pgattr = "Read-Write";
	else if (attrs == 2)
		pgattr = "Read-Write Persistent";
	else
		pgattr = "Unknown Page Attribute";

	printf("Page 0x%x: %s %d, %s\n", page, pgname, num, pgattr);
	hexdump(data, len, NULL, HD_REVERSED | 4);
	free(data);
	close(fd);
	return (0);
}

MPS_COMMAND(show, cfgpage, show_cfgpage, "page [num] [addr]", "Display config page");