xref: /illumos-gate/usr/src/cmd/pcitool/pcitool_ui.c (revision 20c1c3551cb3b3117591ae38463d16aada597c48)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 /*
26  * This is the user interface module for the pcitool.  It checks commandline
27  * arguments and options and stores them in a pcitool_uiargs_t structure passed
28  * back to the rest of the program for processing.
29  *
30  * Please see pcitool_usage.c for a complete commandline description.
31  */
32 
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <unistd.h>
36 #include <sys/inttypes.h>
37 #include <sys/types.h>
38 #include <sys/param.h>
39 #include <strings.h>
40 #include <errno.h>
41 #include <sys/pci.h>
42 
43 #include <sys/pci_tools.h>
44 
45 #include "pcitool_ui.h"
46 
47 /*
48  * Uncomment the following for useful debugging / development options for this
49  * module only.
50  */
51 
52 /* #define	DEBUG	1		*/
53 /* #define	STANDALONE	1	*/
54 
55 #define		DEVNAME_START_PCI	"/pci"
56 #define		DEVNAME_START_NIU	"/niu"
57 
58 /* Default read/write size when -s not specified. */
59 #define	DEFAULT_SIZE	4
60 
61 /* For get_value64 */
62 #define	HEX_ONLY	B_TRUE
63 #define	BASE_BY_PREFIX	B_FALSE
64 
65 #define	BITS_PER_BYTE	8
66 
67 /*
68  * This defines which main options can be specified by the user.
69  * Options with colons after them require arguments.
70  */
71 static char *opt_string = ":n:d:i:m:p:rw:o:s:e:b:vaqlcxgy";
72 
73 /* This defines options used singly and only by themselves (no nexus). */
74 static char *no_dev_opt_string = "ahpqv";
75 
76 static void print_bad_option(char *argv[], int optopt, char *optarg);
77 static boolean_t get_confirmation(void);
78 static int get_value64(char *value_str, uint64_t *value, boolean_t hex_only);
79 static int parse_nexus_opts(char *input, uint64_t *flags_arg, uint8_t *bank_arg,
80     uint64_t *base_addr_arg);
81 static int extract_bdf_arg(char *cvalue, char *fld, uint64_t fld_flag,
82     uint64_t *all_flags, uint8_t *ivalue);
83 static int extract_bdf(char *value, char **bvalue_p, char **dvalue_p,
84     char **fvalue_p);
85 static int parse_device_opts(char *input, uint64_t *flags_arg,
86     uint8_t *bus_arg, uint8_t *device_arg, uint8_t *func_arg,
87     uint8_t *bank_arg);
88 static int parse_ino_opts(char *input, uint64_t *flags_arg,
89     uint32_t *cpu_arg, uint8_t *ino_arg);
90 static int parse_msi_opts(char *input, uint64_t *flags_arg, uint16_t *msi_arg);
91 static int parse_intr_set_opts(char *input, uint64_t *flags_arg,
92     uint32_t *cpu_arg);
93 static int parse_probeone_opts(char *input, uint64_t *flags_arg,
94     uint8_t *bus_arg, uint8_t *device_arg, uint8_t *func_arg);
95 
96 #ifdef DEBUG
97 void dump_struct(pcitool_uiargs_t *dump_this);
98 #endif
99 
100 /* Exported functions. */
101 
102 /*
103  * Main commandline argument parsing routine.
104  *
105  * Takes argc and argv straight from the commandline.
106  * Returns a pcitool_uiargs_t with flags of options specified, and values
107  * associated with them.
108  */
109 int
110 get_commandline_args(int argc, char *argv[], pcitool_uiargs_t *parsed_args)
111 {
112 	int c;				/* Current option being processed. */
113 	boolean_t error = B_FALSE;
114 	boolean_t confirm = B_FALSE;
115 	uint64_t recv64;
116 
117 	/* Needed for getopt(3C) */
118 	extern char *optarg;	/* Current commandline string. */
119 	extern int optind;	/* Index of current commandline string. */
120 	extern int optopt;	/* Option (char) which is missing an operand. */
121 	extern int opterr;	/* Set to 0 to disable getopt err reporting. */
122 
123 	opterr = 0;
124 
125 	bzero(parsed_args, sizeof (pcitool_uiargs_t));
126 
127 	/* No args.  probe mode accounting for bus ranges, nonverbose. */
128 	if (argc == 1) {
129 		usage(argv[0]);
130 		parsed_args->flags = 0;
131 		return (SUCCESS);
132 	}
133 
134 	/* 1st arg is not a device name. */
135 	if ((strstr(argv[1], DEVNAME_START_PCI) != argv[1]) &&
136 	    (strstr(argv[1], DEVNAME_START_NIU) != argv[1])) {
137 
138 		/* Default is to probe all trees accounting for bus ranges. */
139 		parsed_args->flags = PROBEALL_FLAG | PROBERNG_FLAG;
140 
141 		/* Loop thru the options until complete or an error is found. */
142 		while (((c = getopt(argc, argv, no_dev_opt_string)) != -1) &&
143 		    (error == B_FALSE)) {
144 
145 			switch (c) {
146 
147 			/* Help requested. */
148 			case 'h':
149 				usage(argv[0]);
150 				parsed_args->flags = 0;
151 				return (SUCCESS);
152 
153 			case 'p':
154 				/* Take default probe mode */
155 				break;
156 
157 			case 'a':
158 				/*
159 				 * Enable display of ALL bus numbers.
160 				 *
161 				 * This takes precidence over PROBERNG as -a
162 				 * is explicitly specified.
163 				 */
164 				parsed_args->flags &= ~PROBERNG_FLAG;
165 				break;
166 
167 			case 'q':
168 				parsed_args->flags |= QUIET_FLAG;
169 				break;
170 
171 			/* Verbose mode for full probe. */
172 			case 'v':
173 				parsed_args->flags |= VERBOSE_FLAG;
174 				break;
175 
176 			default:
177 				error = B_TRUE;
178 				break;
179 			}
180 		}
181 
182 		/* Check for values straggling at the end of the command. */
183 		if (optind != argc) {
184 			(void) fprintf(stderr, "%s: Unrecognized parameter "
185 			    "at the end of the command.\n", argv[0]);
186 			error = B_TRUE;
187 		}
188 
189 		if (error) {
190 			print_bad_option(argv, optopt, optarg);
191 			return (FAILURE);
192 		}
193 
194 		return (SUCCESS);
195 	}
196 
197 	/* Device node specified on commandline. */
198 
199 	/* Skip argv[1] before continuing below. */
200 	optind++;
201 
202 	/* Loop through the options until complete or an error is found. */
203 	while (((c = getopt(argc, argv, opt_string)) != -1) &&
204 	    (error == B_FALSE)) {
205 
206 		switch (c) {
207 
208 		/* Nexus */
209 		case 'n':
210 			if (parsed_args->flags & (LEAF_FLAG |
211 			    NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS)) {
212 				(void) fprintf(stderr, "%s: -n set with "
213 				    "-d, -p or -i or is set twice\n", argv[0]);
214 				error = B_TRUE;
215 				break;
216 			}
217 			parsed_args->flags |= NEXUS_FLAG;
218 			if (parse_nexus_opts(optarg, &parsed_args->flags,
219 			    &parsed_args->bank, &parsed_args->base_address) !=
220 			    SUCCESS) {
221 				(void) fprintf(stderr,
222 				    "%s: Error parsing -n options\n", argv[0]);
223 				error = B_TRUE;
224 				break;
225 			}
226 			break;
227 
228 		/* Device (leaf node) */
229 		case 'd':
230 			if (parsed_args->flags & (LEAF_FLAG |
231 			    NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS)) {
232 				(void) fprintf(stderr, "%s: -d set with "
233 				    "-n, -p or -i or is set twice\n", argv[0]);
234 				error = B_TRUE;
235 				break;
236 			}
237 			parsed_args->flags |= LEAF_FLAG;
238 			if (parse_device_opts(optarg, &parsed_args->flags,
239 			    &parsed_args->bus, &parsed_args->device,
240 			    &parsed_args->function,
241 			    &parsed_args->bank) != SUCCESS) {
242 				(void) fprintf(stderr,
243 				    "%s: Error parsing -d options\n", argv[0]);
244 				error = B_TRUE;
245 				break;
246 			}
247 			break;
248 
249 		/* Interrupt */
250 		case 'i':
251 			if (parsed_args->flags & (LEAF_FLAG |
252 			    NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS)) {
253 				(void) fprintf(stderr, "%s: -i set with -m, "
254 				    "-n, -d or -p or is set twice\n", argv[0]);
255 				error = B_TRUE;
256 				break;
257 			}
258 			parsed_args->flags |= INTR_FLAG;
259 
260 			/* parse input to get ino value. */
261 			if (parse_ino_opts(optarg, &parsed_args->flags,
262 			    &parsed_args->old_cpu,
263 			    &parsed_args->intr_ino) != SUCCESS) {
264 				(void) fprintf(stderr,
265 				    "%s: Error parsing interrupt options\n",
266 				    argv[0]);
267 				error = B_TRUE;
268 			}
269 			break;
270 		/* Interrupt */
271 		case 'm':
272 			if (parsed_args->flags & (LEAF_FLAG |
273 			    NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS)) {
274 				(void) fprintf(stderr, "%s: -m set with -i, "
275 				    "-n, -d or -p or is set twice\n", argv[0]);
276 				error = B_TRUE;
277 				break;
278 			}
279 			parsed_args->flags |= INTR_FLAG;
280 
281 			/* parse input to get msi value. */
282 			if (parse_msi_opts(optarg, &parsed_args->flags,
283 			    &parsed_args->intr_msi) != SUCCESS) {
284 				(void) fprintf(stderr,
285 				    "%s: Error parsing interrupt options\n",
286 				    argv[0]);
287 				error = B_TRUE;
288 			}
289 			break;
290 		/* Probe */
291 		case 'p':
292 			if (parsed_args->flags & (LEAF_FLAG |
293 			    NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS)) {
294 				(void) fprintf(stderr, "%s: -p set with "
295 				    "-n, -d or -i or is set twice\n", argv[0]);
296 				error = B_TRUE;
297 				break;
298 			}
299 
300 			/* Process -p with no dedicated options to it. */
301 			if (optarg[0] == '-') {
302 				optind--;
303 
304 				/* Probe given tree observing ranges */
305 				parsed_args->flags |=
306 				    (PROBETREE_FLAG | PROBERNG_FLAG);
307 				continue;
308 			}
309 
310 			/* parse input to get ino value. */
311 			if (parse_probeone_opts(optarg, &parsed_args->flags,
312 			    &parsed_args->bus, &parsed_args->device,
313 			    &parsed_args->function) != SUCCESS) {
314 				(void) fprintf(stderr,
315 				    "%s: Error parsing probe options\n",
316 				    argv[0]);
317 				error = B_TRUE;
318 			} else {
319 				/*
320 				 * parse_probeone_opts found options to
321 				 * set up bdf.
322 				 */
323 				parsed_args->flags |= PROBEDEV_FLAG;
324 			}
325 			break;
326 
327 		/* Probe all busses */
328 		case 'a':
329 			/* Must follow -p, and -p must have no bdf. */
330 			if (!(parsed_args->flags & PROBETREE_FLAG)) {
331 				error = B_TRUE;
332 				break;
333 			}
334 
335 			parsed_args->flags &= ~PROBERNG_FLAG;
336 			break;
337 
338 		/* Read */
339 		case 'r':
340 			if (!(parsed_args->flags &
341 			    (LEAF_FLAG | NEXUS_FLAG | INTR_FLAG))) {
342 				error = B_TRUE;
343 				break;
344 			}
345 
346 			/*
347 			 * Allow read and write to be set together for now,
348 			 * since this means write then read back for device and
349 			 * nexus accesses.  Check for this and disallow with
350 			 * interrupt command later.
351 			 */
352 			parsed_args->flags |= READ_FLAG;
353 			break;
354 
355 		/* Write */
356 		case 'w':
357 			if (!(parsed_args->flags &
358 			    (LEAF_FLAG | NEXUS_FLAG | INTR_FLAG))) {
359 				error = B_TRUE;
360 				break;
361 			}
362 			if (parsed_args->flags & WRITE_FLAG) {
363 				(void) fprintf(stderr, "%s: -w set twice\n",
364 				    argv[0]);
365 				error = B_TRUE;
366 				break;
367 			}
368 
369 			/*
370 			 * For device and nexus, get a single register value
371 			 * to write.
372 			 */
373 			if (parsed_args->flags & (NEXUS_FLAG | LEAF_FLAG)) {
374 				parsed_args->flags |= WRITE_FLAG;
375 				if (get_value64(optarg,
376 				    &parsed_args->write_value, HEX_ONLY) !=
377 				    SUCCESS) {
378 					(void) fprintf(stderr,
379 					    "%s: Error reading value to "
380 					    "write.\n", argv[0]);
381 					error = B_TRUE;
382 					break;
383 				}
384 
385 			/* For interrupt,  parse input to get cpu value. */
386 			} else if (parsed_args->flags & INTR_FLAG) {
387 				parsed_args->flags |= WRITE_FLAG;
388 				if (parse_intr_set_opts(optarg,
389 				    &parsed_args->flags,
390 				    &parsed_args->intr_cpu) != SUCCESS) {
391 					(void) fprintf(stderr, "%s: Error "
392 					    "parsing interrupt options.\n",
393 					    argv[0]);
394 					error = B_TRUE;
395 					break;
396 				}
397 
398 			} else {
399 				error = B_TRUE;
400 				break;
401 			}
402 			break;
403 
404 		/* Offset */
405 		case 'o':
406 			if (!(parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG))) {
407 				error = B_TRUE;
408 				break;
409 			}
410 			if (parsed_args->flags & OFFSET_FLAG) {
411 				(void) fprintf(stderr, "%s: -o set twice\n",
412 				    argv[0]);
413 				error = B_TRUE;
414 				break;
415 			}
416 			parsed_args->flags |= OFFSET_FLAG;
417 			if (get_value64(optarg, &recv64, HEX_ONLY) != SUCCESS) {
418 				(void) fprintf(stderr,
419 				    "%s: Error in offset argument\n", argv[0]);
420 				error = B_TRUE;
421 				break;
422 			}
423 			parsed_args->offset = (uint32_t)recv64;
424 			if (parsed_args->offset != recv64) {
425 				(void) fprintf(stderr, "%s: Offset argument "
426 				    "too large for 32 bits\n", argv[0]);
427 				error = B_TRUE;
428 				break;
429 			}
430 			break;
431 
432 		/* Size */
433 		case 's':
434 			if (!(parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG))) {
435 				error = B_TRUE;
436 				break;
437 			}
438 			if (parsed_args->flags & SIZE_FLAG) {
439 				(void) fprintf(stderr, "%s: -s set twice\n",
440 				    argv[0]);
441 				error = B_TRUE;
442 				break;
443 			}
444 			parsed_args->flags |= SIZE_FLAG;
445 			if (get_value64(optarg, &recv64, HEX_ONLY) != SUCCESS) {
446 				(void) fprintf(stderr,
447 				    "%s: Error in size argument\n", argv[0]);
448 				error = B_TRUE;
449 				break;
450 			}
451 			switch (recv64) {
452 			case 1:
453 			case 2:
454 			case 4:
455 			case 8:
456 				break;
457 			default:
458 				error = B_TRUE;
459 				(void) fprintf(stderr,
460 				    "%s: Error in size argument\n", argv[0]);
461 				break;
462 			}
463 			parsed_args->size |= (uint8_t)recv64;
464 			break;
465 
466 		/* Endian. */
467 		case 'e':
468 			if (!(parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG))) {
469 				error = B_TRUE;
470 				break;
471 			}
472 			if (parsed_args->flags & ENDIAN_FLAG) {
473 				(void) fprintf(stderr, "%s: -e set twice\n",
474 				    argv[0]);
475 				error = B_TRUE;
476 				break;
477 			}
478 			parsed_args->flags |= ENDIAN_FLAG;
479 
480 			/* Only a single character allowed. */
481 			if (optarg[1] != '\0') {
482 				(void) fprintf(stderr,
483 				    "%s: Error in endian argument\n", argv[0]);
484 				error = B_TRUE;
485 				break;
486 			}
487 
488 			switch (optarg[0]) {
489 			case 'b':
490 				parsed_args->big_endian = B_TRUE;
491 				break;
492 			case 'l':
493 				break;
494 			default:
495 				(void) fprintf(stderr,
496 				    "%s: Error in endian argument\n", argv[0]);
497 				error = B_TRUE;
498 				break;
499 			}
500 			break;
501 
502 		/* (Byte)dump */
503 		case 'b':
504 			if (!(parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG))) {
505 				error = B_TRUE;
506 				break;
507 			}
508 			if (parsed_args->flags & BYTEDUMP_FLAG) {
509 				(void) fprintf(stderr, "%s: -b set twice\n",
510 				    argv[0]);
511 				error = B_TRUE;
512 				break;
513 			}
514 			parsed_args->flags |= BYTEDUMP_FLAG;
515 			if (get_value64(optarg, &recv64, HEX_ONLY) != SUCCESS) {
516 				(void) fprintf(stderr, "%s: Error in "
517 				    "bytedump argument\n", argv[0]);
518 				error = B_TRUE;
519 				break;
520 			}
521 			parsed_args->bytedump_amt = (uint32_t)recv64;
522 			if (parsed_args->bytedump_amt != recv64) {
523 				(void) fprintf(stderr, "%s: Bytedump amount "
524 				    "too large for 32 bits\n", argv[0]);
525 				error = B_TRUE;
526 				break;
527 			}
528 			break;
529 
530 		/* Verbose. */
531 		case 'v':
532 			parsed_args->flags |= VERBOSE_FLAG;
533 			break;
534 
535 		/*
536 		 * Quiet - no errors reported as messages.
537 		 * (Status still returned by program, however.)
538 		 */
539 		case 'q':
540 			parsed_args->flags |= QUIET_FLAG;
541 			break;
542 
543 		/* Loop. */
544 		case 'l':
545 			parsed_args->flags |= LOOP_FLAG;
546 			break;
547 
548 		/*
549 		 * Dump characters with bytedump (-b).
550 		 * Show controller info with -i.
551 		 */
552 		case 'c':
553 			if (parsed_args->flags & BYTEDUMP_FLAG) {
554 				parsed_args->flags |= CHARDUMP_FLAG;
555 
556 			} else if (parsed_args->flags & INTR_FLAG) {
557 				parsed_args->flags |= SHOWCTLR_FLAG;
558 
559 			} else {
560 				error = B_TRUE;
561 			}
562 			break;
563 
564 		/* Continue on errors with bytedump (-b). */
565 		case 'x':
566 			if (!(parsed_args->flags & BYTEDUMP_FLAG)) {
567 				error = B_TRUE;
568 				break;
569 			}
570 			parsed_args->flags |= ERRCONT_FLAG;
571 			break;
572 
573 		case 'g':
574 			if (!(parsed_args->flags & INTR_FLAG)) {
575 				error = B_TRUE;
576 				break;
577 			}
578 			parsed_args->flags |= SETGRP_FLAG;
579 			break;
580 
581 		/* Take -y as confirmation and don't ask (where applicable). */
582 		case 'y':
583 			confirm = B_TRUE;
584 			break;
585 
586 		/* Option without operand. */
587 		case ':':
588 			switch (optopt) {
589 			case 'p':
590 				/* Allow -p without bdf spec. */
591 				parsed_args->flags |=
592 				    (PROBETREE_FLAG | PROBERNG_FLAG);
593 				break;
594 			default:
595 				error = B_TRUE;
596 				break;
597 			}
598 			break;
599 
600 		/* Unrecognized option. */
601 		case '?':
602 			error = B_TRUE;
603 			break;
604 		}
605 	}
606 
607 	/*
608 	 * Commandline has been parsed.  Check for errors which can be checked
609 	 * only after commandline parsing is complete.
610 	 */
611 
612 	if (!error) {
613 
614 		/* Check for values straggling at the end of the command. */
615 		if (optind != argc) {
616 			(void) fprintf(stderr, "%s: Unrecognized parameter "
617 			    "at the end of the command.\n", argv[0]);
618 			print_bad_option(argv, optopt, optarg);
619 			return (FAILURE);
620 		}
621 
622 		/* No args other than nexus.  Default to probing that nexus */
623 		if (!(parsed_args->flags &
624 		    (LEAF_FLAG | NEXUS_FLAG | INTR_FLAG | PROBE_FLAGS))) {
625 			usage(argv[0]);
626 			parsed_args->flags = 0;
627 			return (SUCCESS);
628 		}
629 
630 		/*
631 		 * Don't allow any options other than all-bus, verbose or
632 		 * quiet with probe command.  Set default probe flags if nexus
633 		 * or leaf options are not specified.
634 		 */
635 		if (parsed_args->flags & (PROBETREE_FLAG | PROBEALL_FLAG)) {
636 			if (parsed_args->flags &
637 			    ~(PROBE_FLAGS | QUIET_FLAG | VERBOSE_FLAG))
638 				error = B_TRUE;
639 		}
640 
641 		/*
642 		 * Allow only read, write, quiet and verbose flags for
643 		 * interrupt command.  Note that INO_SPEC_FLAG and CPU_SPEC_FLAG
644 		 * get set for interrupt command.
645 		 */
646 		if (parsed_args->flags & INTR_FLAG) {
647 			if (parsed_args->flags &
648 			    ~(INTR_FLAG | VERBOSE_FLAG | QUIET_FLAG |
649 			    READ_FLAG | WRITE_FLAG | SHOWCTLR_FLAG |
650 			    SETGRP_FLAG | INO_ALL_FLAG | INO_SPEC_FLAG |
651 			    MSI_ALL_FLAG | MSI_SPEC_FLAG | CPU_SPEC_FLAG)) {
652 				(void) fprintf(stderr, "%s: -v, -q, -r, -w, -c "
653 				    "-g are only options allowed with "
654 				    "interrupt command.\n", argv[0]);
655 				error = B_TRUE;
656 			}
657 
658 			/* Need cpu and ino values for interrupt set command. */
659 			if ((parsed_args->flags & WRITE_FLAG) &&
660 			    !(parsed_args->flags & CPU_SPEC_FLAG) &&
661 			    !((parsed_args->flags & INO_SPEC_FLAG) ||
662 			    (parsed_args->flags & MSI_SPEC_FLAG))) {
663 				(void) fprintf(stderr,
664 				    "%s: Both cpu and ino/msi must be "
665 				    "specified explicitly for interrupt "
666 				    "set command.\n", argv[0]);
667 				error = B_TRUE;
668 			}
669 
670 			/* Intr write and show ctlr flags are incompatible. */
671 			if ((parsed_args->flags &
672 			    (WRITE_FLAG + SHOWCTLR_FLAG)) ==
673 			    (WRITE_FLAG + SHOWCTLR_FLAG)) {
674 				(void) fprintf(stderr,
675 				    "%s: -w and -c are incompatible for "
676 				    "interrupt command.\n", argv[0]);
677 				error = B_TRUE;
678 			}
679 
680 			/* Intr setgrp flag valid only for intr writes. */
681 			if ((parsed_args->flags & (WRITE_FLAG + SETGRP_FLAG)) ==
682 			    SETGRP_FLAG) {
683 				(void) fprintf(stderr,
684 				    "%s: -g is incompatible with -r "
685 				    "for interrupt command.\n", argv[0]);
686 				error = B_TRUE;
687 			}
688 
689 			/*
690 			 * Disallow read & write together in interrupt command.
691 			 */
692 			if ((parsed_args->flags & (WRITE_FLAG | READ_FLAG)) ==
693 			    (WRITE_FLAG | READ_FLAG)) {
694 				(void) fprintf(stderr, "%s: Only one of -r and "
695 				    "-w can be specified in "
696 				    "interrupt command.\n", argv[0]);
697 				error = B_TRUE;
698 			}
699 		}
700 
701 		/* Bytedump incompatible with some other options. */
702 		if ((parsed_args->flags & BYTEDUMP_FLAG) &&
703 		    (parsed_args->flags &
704 		    (WRITE_FLAG | PROBE_FLAGS | INTR_FLAG))) {
705 			(void) fprintf(stderr,
706 			    "%s: -b is incompatible with "
707 			    "another specified option.\n", argv[0]);
708 			error = B_TRUE;
709 		}
710 
711 		if (parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG)) {
712 
713 			if (!(parsed_args->flags & SIZE_FLAG)) {
714 				parsed_args->size = DEFAULT_SIZE;
715 			}
716 			if ((parsed_args->flags & WRITE_FLAG) &&
717 			    parsed_args->size < sizeof (uint64_t) &&
718 			    (parsed_args->write_value >>
719 			    (parsed_args->size * BITS_PER_BYTE))) {
720 				(void) fprintf(stderr,
721 				    "%s: Data to write is larger than "
722 				    "specified size.\n", argv[0]);
723 				error = B_TRUE;
724 			}
725 
726 		} else { /* Looping is compatible only with register cmds. */
727 
728 			if (parsed_args->flags & LOOP_FLAG) {
729 				(void) fprintf(stderr, "%s: -l is incompatible "
730 				    "with given command.\n", argv[0]);
731 				error = B_TRUE;
732 			}
733 		}
734 
735 		/* Call out an erroneous -y and then ignore it. */
736 		if ((confirm) && (!(parsed_args->flags & BASE_SPEC_FLAG))) {
737 				(void) fprintf(stderr,
738 				    "%s: -y is incompatible with given command."
739 				    "  Ignoring.\n", argv[0]);
740 		}
741 	}
742 
743 	/* Now fill in the defaults and other holes. */
744 	if (!(error)) {
745 		if (!(parsed_args->flags & (READ_FLAG | WRITE_FLAG))) {
746 			parsed_args->flags |= READ_FLAG;
747 		}
748 
749 		if (parsed_args->flags & (LEAF_FLAG | NEXUS_FLAG)) {
750 			if (!(parsed_args->flags & ENDIAN_FLAG)) {
751 				parsed_args->big_endian = B_FALSE;
752 			}
753 		}
754 
755 		if (parsed_args->flags & BASE_SPEC_FLAG) {
756 			if (!confirm) {
757 				confirm = get_confirmation();
758 			}
759 			if (!confirm) {
760 				parsed_args->flags &= ~ALL_COMMANDS;
761 			}
762 		}
763 
764 		/*
765 		 * As far as other defaults are concerned:
766 		 *   Other fields: bus, device, function, offset, default to
767 		 *   zero.
768 		 */
769 
770 	} else {	/* An error occurred. */
771 
772 		print_bad_option(argv, optopt, optarg);
773 	}
774 	return (error);
775 }
776 
777 
778 /* Module-private functions. */
779 
780 static void
781 print_bad_option(char *argv[], int optopt, char *optarg)
782 {
783 	/* Illegal option operand */
784 	if (optarg != NULL) {
785 		(void) fprintf(stderr,
786 		    "%s: illegal operand %s specified for option %c\n",
787 		    argv[0], optarg, optopt);
788 
789 	/* Illegal option */
790 	} else if (optopt != 0) {
791 		(void) fprintf(stderr,
792 		    "%s: option %c is illegal or is missing an operand\n",
793 		    argv[0], optopt);
794 
795 	/* getopt wasn't even called.  Bad device spec. */
796 	} else {
797 		(void) fprintf(stderr,
798 		    "%s: device spec must start with %s or %s...\n", argv[0],
799 		    DEVNAME_START_PCI, DEVNAME_START_NIU);
800 	}
801 
802 	(void) fprintf(stderr,
803 	    "%s: Type \"%s -h\" to get help on running this program.\n",
804 	    argv[0], argv[0]);
805 }
806 
807 /*
808  * Warn the user and ask for confirmation.
809  */
810 static boolean_t
811 get_confirmation()
812 {
813 	int i, b;
814 
815 	(void) printf("WARNING: This cmd with a bad addr can panic "
816 	    "the system.  Continue [y/n] (n)? ");
817 	for (i = 0; ; i++) {
818 		b = getchar();
819 		switch (b) {
820 		case ' ':
821 		case '\t':
822 			break;
823 		case 'y':
824 		case 'Y':
825 			return (B_TRUE);
826 			break;
827 		default:
828 			return (B_FALSE);
829 			break;
830 		}
831 	}
832 }
833 
834 
835 /*
836  * Given a digit string, return a 64 bit value.
837  *
838  * If the hex_only arg is true, interpret all strings as hex.
839  * Otherwise, interpret as strtoull(3C) does with base=0.
840  */
841 static int
842 get_value64(char *value_str, uint64_t *value, boolean_t hex_only)
843 {
844 
845 	/* This is overkill for now, as everything is in hex. */
846 	static char dec_digits[] = "0123456789";
847 	static char hex_digits[] = "01234567890abcdefABCDEF";
848 	static char oct_digits[] = "01234567";
849 
850 	char *digit_string;
851 	char *string_to_check;
852 
853 	if ((value_str == NULL) || (strlen(value_str) == 0)) {
854 		(void) fprintf(stderr, "Missing value argument.\n");
855 		return (FAILURE);
856 	}
857 
858 	if (!hex_only && (value_str[0] != '0')) {
859 		digit_string = dec_digits;
860 		string_to_check = value_str;
861 	} else if ((value_str[1] == 'X') || (value_str[1] == 'x')) {
862 		digit_string = hex_digits;
863 		string_to_check = &value_str[2];	/* Ignore 0x of hex */
864 	} else if (hex_only) {
865 		digit_string = hex_digits;
866 		string_to_check = value_str;	/* Hex number, no 0x prefix */
867 	} else {
868 		digit_string = oct_digits;
869 		string_to_check = value_str;
870 	}
871 
872 	/*
873 	 * Verify value is all proper digits.
874 	 *
875 	 * For some reason, strtoull doesn't return an error when it cannot
876 	 * interpret the value.  This is why we do the checking ourselves.
877 	 */
878 	if (strspn(string_to_check, digit_string) != strlen(string_to_check)) {
879 		(void) fprintf(stderr,
880 		    "Value must contain only valid digits.\n");
881 		return (FAILURE);
882 	}
883 
884 	*value = strtoull(value_str, NULL, (hex_only ? 16 : 0));
885 
886 	return (SUCCESS);
887 }
888 
889 
890 /*
891  * Parse nexus options.  This includes:
892  *   bank=number
893  *
894  * input is what the user specified for the options on the commandline,
895  * flags_arg is modified with the option set, and bank_arg returns the value
896  * specified for bank.
897  */
898 static int
899 parse_nexus_opts(char *input, uint64_t *flags_arg, uint8_t *bank_arg,
900     uint64_t *base_addr_arg)
901 {
902 	typedef enum {
903 		bank = 0,
904 		base
905 	} nexus_opts_index_t;
906 
907 	static char *nexus_opts[] = {
908 		"bank",
909 		"base",
910 		NULL
911 	};
912 
913 	char *value;
914 	uint64_t	recv64;
915 
916 	int rval = SUCCESS;
917 
918 	if (input == NULL) {
919 		(void) fprintf(stderr, "Missing argument.\n");
920 		return (FAILURE);
921 	}
922 
923 	while ((*input != '\0') && (rval == SUCCESS)) {
924 		switch (getsubopt(&input, nexus_opts, &value)) {
925 		case bank:
926 			if (*flags_arg & BANK_SPEC_FLAG) {
927 				(void) fprintf(stderr, "The bank or bar arg is "
928 				    "specified more than once.\n");
929 				rval = FAILURE;
930 				break;
931 			}
932 			if (*flags_arg & BASE_SPEC_FLAG) {
933 				(void) fprintf(stderr, "Bank and base address "
934 				    "cannot both be specified.\n");
935 				rval = FAILURE;
936 				break;
937 			}
938 			if (value == NULL) {
939 				(void) fprintf(stderr, "Missing bank value.\n");
940 				rval = FAILURE;
941 				break;
942 			}
943 			if ((rval = get_value64(value, &recv64, HEX_ONLY)) !=
944 			    SUCCESS) {
945 				break;
946 			}
947 			*bank_arg = (uint8_t)recv64;
948 			if (*bank_arg != recv64) {
949 				(void) fprintf(stderr,
950 				    "Bank argument must fit into 8 bits.\n");
951 				rval = FAILURE;
952 				break;
953 			}
954 			*flags_arg |= BANK_SPEC_FLAG;
955 			break;
956 
957 		case base:
958 			if (*flags_arg & BASE_SPEC_FLAG) {
959 				(void) fprintf(stderr, "The base address "
960 				    "is specified more than once.\n");
961 				rval = FAILURE;
962 				break;
963 			}
964 			if (*flags_arg & BANK_SPEC_FLAG) {
965 				(void) fprintf(stderr, "Bank and base address "
966 				    "cannot both be specified.\n");
967 				rval = FAILURE;
968 				break;
969 			}
970 			if (value == NULL) {
971 				(void) fprintf(stderr,
972 				    "Missing base addr value.\n");
973 				rval = FAILURE;
974 				break;
975 			}
976 			if ((rval = get_value64(value, base_addr_arg,
977 			    HEX_ONLY)) != SUCCESS) {
978 				break;
979 			}
980 			*flags_arg |= BASE_SPEC_FLAG;
981 			break;
982 
983 		default:
984 			(void) fprintf(stderr, "Unrecognized option for -n\n");
985 			rval = FAILURE;
986 			break;
987 		}
988 	}
989 
990 	return (rval);
991 }
992 
993 
994 static int
995 extract_bdf_arg(char *cvalue, char *fld, uint64_t fld_flag, uint64_t *all_flags,
996     uint8_t *ivalue)
997 {
998 	uint64_t recv64;
999 
1000 	if (*all_flags & fld_flag) {
1001 		(void) fprintf(stderr,
1002 		    "The %s is specified more than once.\n", fld);
1003 		return (FAILURE);
1004 	}
1005 	if (get_value64(cvalue, &recv64, HEX_ONLY) != SUCCESS)
1006 		return (FAILURE);
1007 
1008 	*ivalue = (uint8_t)recv64;
1009 	if (recv64 != *ivalue) {
1010 		(void) fprintf(stderr,
1011 		    "This program limits the %s argument to 8 bits.\n", fld);
1012 		(void) fprintf(stderr, "The actual maximum may be "
1013 		    "smaller but cannot be enforced by this program.\n");
1014 		return (FAILURE);
1015 	}
1016 
1017 	*all_flags |= fld_flag;
1018 	return (SUCCESS);
1019 }
1020 
1021 
1022 static int extract_bdf(char *value, char **bvalue_p, char **dvalue_p,
1023     char **fvalue_p)
1024 {
1025 	char *strtok_state;
1026 	char *dummy;
1027 	static char *separator = ".";
1028 
1029 	*bvalue_p = strtok_r(value, separator, &strtok_state);
1030 	*dvalue_p = strtok_r(NULL, separator, &strtok_state);
1031 	*fvalue_p = strtok_r(NULL, separator, &strtok_state);
1032 	dummy = strtok_r(NULL, separator, &strtok_state);
1033 
1034 	/* Return failure only if too many values specified. */
1035 	return ((dummy) ? FAILURE : SUCCESS);
1036 }
1037 
1038 /*
1039  * Parse device options.  This includes:
1040  *   bus=number
1041  *   dev=number
1042  *   func=number
1043  *   bank=number
1044  *   config
1045  *   bar0
1046  *   bar1
1047  *   bar2
1048  *   bar3
1049  *   bar4
1050  *   bar5
1051  *   rom
1052  *
1053  * input is what the user specified for the options on the commandline,
1054  * flags_arg is modified with the options set, and the rest of the args return
1055  * their respective values.
1056  */
1057 static int
1058 parse_device_opts(
1059     char *input, uint64_t *flags_arg, uint8_t *bus_arg, uint8_t *device_arg,
1060     uint8_t *func_arg, uint8_t *bank_arg)
1061 {
1062 	/* Needed by getsubopt(3C) */
1063 	typedef enum {
1064 		bus = 0,
1065 		dev = 1,
1066 		func = 2,
1067 		bdf = 3,
1068 		bank = 4,
1069 		config = 5,
1070 		bar0 = 6,
1071 		bar1 = 7,
1072 		bar2 = 8,
1073 		bar3 = 9,
1074 		bar4 = 10,
1075 		bar5 = 11,
1076 		rom = 12
1077 	} bdf_opts_index_t;
1078 
1079 	/* Needed by getsubopt(3C) */
1080 	static char *bdf_opts[] = {
1081 		"bus",
1082 		"dev",
1083 		"func",
1084 		"bdf",
1085 		"bank",
1086 		"config",
1087 		"bar0",
1088 		"bar1",
1089 		"bar2",
1090 		"bar3",
1091 		"bar4",
1092 		"bar5",
1093 		"rom",
1094 		NULL };
1095 
1096 	char *value;		/* Current suboption being processed. */
1097 	uint64_t recv64;	/* Temporary value. */
1098 
1099 	/* This error message is used in many places. */
1100 	static char bank_err[] =
1101 	    {"The bank or bar arg is specified more than once.\n"};
1102 
1103 	int rval = SUCCESS;
1104 
1105 	while ((*input != '\0') && (rval == SUCCESS)) {
1106 		switch (getsubopt(&input, bdf_opts, &value)) {
1107 
1108 		/* bus=number */
1109 		case bdf: {
1110 			char *bvalue, *dvalue, *fvalue;
1111 
1112 			if ((rval = extract_bdf(value, &bvalue, &dvalue,
1113 			    &fvalue)) != SUCCESS) {
1114 				break;
1115 			}
1116 
1117 			if (!bvalue | !dvalue | !fvalue) {
1118 				break;
1119 			}
1120 
1121 			if ((rval = extract_bdf_arg(bvalue, "bus",
1122 			    BUS_SPEC_FLAG, flags_arg, bus_arg)) != SUCCESS) {
1123 				break;
1124 			}
1125 			if ((rval = extract_bdf_arg(dvalue, "dev",
1126 			    DEV_SPEC_FLAG, flags_arg, device_arg)) != SUCCESS) {
1127 				break;
1128 			}
1129 			rval = extract_bdf_arg(fvalue, "func",
1130 			    FUNC_SPEC_FLAG, flags_arg, func_arg);
1131 			break;
1132 		}
1133 
1134 		case bus:
1135 			rval = extract_bdf_arg(value, "bus", BUS_SPEC_FLAG,
1136 			    flags_arg, bus_arg);
1137 			break;
1138 
1139 		/* dev=number */
1140 		case dev:
1141 			rval = extract_bdf_arg(value, "dev", DEV_SPEC_FLAG,
1142 			    flags_arg, device_arg);
1143 			break;
1144 
1145 		/* func=number */
1146 		case func:
1147 			rval = extract_bdf_arg(value, "func", FUNC_SPEC_FLAG,
1148 			    flags_arg, func_arg);
1149 			break;
1150 
1151 		/* bank=number */
1152 		case bank:
1153 			if (*flags_arg & BANK_SPEC_FLAG) {
1154 				(void) fprintf(stderr, bank_err);
1155 				rval = FAILURE;
1156 				break;
1157 			}
1158 			if ((rval = get_value64(value, &recv64, HEX_ONLY)) !=
1159 			    SUCCESS) {
1160 				break;
1161 			}
1162 			*bank_arg = (uint8_t)recv64;
1163 			if (rval || (*bank_arg != recv64)) {
1164 				(void) fprintf(stderr, "Bank argument must"
1165 				    " fit into 8 bits.\n");
1166 				rval = FAILURE;
1167 				break;
1168 			}
1169 			*flags_arg |= BANK_SPEC_FLAG;
1170 			break;
1171 
1172 		/* config */
1173 		case config:
1174 			if (*flags_arg & BANK_SPEC_FLAG) {
1175 				(void) fprintf(stderr, bank_err);
1176 				rval = FAILURE;
1177 				break;
1178 			}
1179 			*bank_arg = PCITOOL_CONFIG;
1180 			*flags_arg |= BANK_SPEC_FLAG;
1181 			break;
1182 
1183 		/* bar0 */
1184 		case bar0:
1185 			if (*flags_arg & BANK_SPEC_FLAG) {
1186 				(void) fprintf(stderr, bank_err);
1187 				rval = FAILURE;
1188 				break;
1189 			}
1190 			*bank_arg = PCITOOL_BAR0;
1191 			*flags_arg |= BANK_SPEC_FLAG;
1192 			break;
1193 
1194 		/* bar1 */
1195 		case bar1:
1196 			if (*flags_arg & BANK_SPEC_FLAG) {
1197 				(void) fprintf(stderr, bank_err);
1198 				rval = FAILURE;
1199 				break;
1200 			}
1201 			*bank_arg = PCITOOL_BAR1;
1202 			*flags_arg |= BANK_SPEC_FLAG;
1203 			break;
1204 
1205 		/* bar2 */
1206 		case bar2:
1207 			if (*flags_arg & BANK_SPEC_FLAG) {
1208 				(void) fprintf(stderr, bank_err);
1209 				rval = FAILURE;
1210 				break;
1211 			}
1212 			*bank_arg = PCITOOL_BAR2;
1213 			*flags_arg |= BANK_SPEC_FLAG;
1214 			break;
1215 
1216 		/* bar3 */
1217 		case bar3:
1218 			if (*flags_arg & BANK_SPEC_FLAG) {
1219 				(void) fprintf(stderr, bank_err);
1220 				rval = FAILURE;
1221 				break;
1222 			}
1223 			*bank_arg = PCITOOL_BAR3;
1224 			*flags_arg |= BANK_SPEC_FLAG;
1225 			break;
1226 
1227 		/* bar4 */
1228 		case bar4:
1229 			if (*flags_arg & BANK_SPEC_FLAG) {
1230 				(void) fprintf(stderr, bank_err);
1231 				rval = FAILURE;
1232 				break;
1233 			}
1234 			*bank_arg = PCITOOL_BAR4;
1235 			*flags_arg |= BANK_SPEC_FLAG;
1236 			break;
1237 
1238 		/* bar5 */
1239 		case bar5:
1240 			if (*flags_arg & BANK_SPEC_FLAG) {
1241 				(void) fprintf(stderr, bank_err);
1242 				rval = FAILURE;
1243 				break;
1244 			}
1245 			*bank_arg = PCITOOL_BAR5;
1246 			*flags_arg |= BANK_SPEC_FLAG;
1247 			break;
1248 
1249 		/* rom */
1250 		case rom:
1251 			if (*flags_arg & BANK_SPEC_FLAG) {
1252 				(void) fprintf(stderr, bank_err);
1253 				rval = FAILURE;
1254 				break;
1255 			}
1256 			*bank_arg = PCITOOL_ROM;
1257 			*flags_arg |= BANK_SPEC_FLAG;
1258 			break;
1259 
1260 		default:
1261 			(void) fprintf(stderr, "Unrecognized option for -d\n");
1262 			rval = FAILURE;
1263 			break;
1264 		}
1265 	}
1266 
1267 	/* Bus, dev and func must all be specified. */
1268 	if ((*flags_arg & (BUS_SPEC_FLAG | DEV_SPEC_FLAG | FUNC_SPEC_FLAG)) !=
1269 	    (BUS_SPEC_FLAG | DEV_SPEC_FLAG | FUNC_SPEC_FLAG)) {
1270 		rval = FAILURE;
1271 
1272 	/* No bank specified in any way.  Default to config space */
1273 	} else if ((*flags_arg & BANK_SPEC_FLAG) == 0) {
1274 		*flags_arg |= BANK_SPEC_FLAG;
1275 		*bank_arg = PCITOOL_CONFIG;
1276 	}
1277 
1278 	return (rval);
1279 }
1280 
1281 
1282 /*
1283  * Parse INO options.  This includes:
1284  *   ino#  | all
1285  *
1286  * input is the string of options to parse.  flags_arg returns modified with
1287  * specified options set.  Other args return their respective values.
1288  */
1289 static int
1290 parse_ino_opts(char *input, uint64_t *flags_arg, uint32_t *cpu_arg,
1291     uint8_t *ino_arg)
1292 {
1293 	uint64_t	value;
1294 	char		*charvalue;
1295 	int		rval = SUCCESS;
1296 
1297 	if (strcmp(input, "all") == 0) {
1298 		*flags_arg |= INO_ALL_FLAG;
1299 #ifdef __x86
1300 	} else if (strstr(input, ",") == NULL) {
1301 		(void) fprintf(stderr,
1302 		    "Interrupt format should be <cpu#,ino#>.\n");
1303 		rval = FAILURE;
1304 #else
1305 	} else if (strstr(input, ",") == NULL) {
1306 		if ((rval = get_value64(input, &value, HEX_ONLY)) == SUCCESS)
1307 			*ino_arg = (uint8_t)value;
1308 
1309 		if (*ino_arg != value) {
1310 			(void) fprintf(stderr,
1311 			    "ino argument must fit into 8 bits.\n");
1312 			rval = FAILURE;
1313 		} else {
1314 			*flags_arg |= INO_SPEC_FLAG;
1315 		}
1316 #endif
1317 	} else if (charvalue = strtok(input, ",")) {
1318 		if ((rval =
1319 		    get_value64(charvalue, &value, HEX_ONLY)) == SUCCESS) {
1320 			*cpu_arg = (int)value;
1321 		}
1322 
1323 		input = strtok(NULL, ",");
1324 		if (input == NULL) {
1325 			(void) fprintf(stderr, "ino argument is need.\n");
1326 			return (FAILURE);
1327 		}
1328 
1329 		if ((rval = get_value64(input, &value, HEX_ONLY)) == SUCCESS)
1330 			*ino_arg = (uint8_t)value;
1331 
1332 		if (*ino_arg != value) {
1333 			(void) fprintf(stderr,
1334 			    "ino argument must fit into 8 bits.\n");
1335 			rval = FAILURE;
1336 		} else {
1337 			*flags_arg |= INO_SPEC_FLAG;
1338 		}
1339 	} else {
1340 		(void) fprintf(stderr,
1341 		    "Unrecognized option for -i\n");
1342 		rval = FAILURE;
1343 	}
1344 
1345 	return (rval);
1346 }
1347 
1348 
1349 /*
1350  * Parse MSI options.  This includes:
1351  *   msi#  | all
1352  *
1353  * input is the string of options to parse.  flags_arg returns modified with
1354  * specified options set.  Other args return their respective values.
1355  */
1356 static int
1357 parse_msi_opts(char *input, uint64_t *flags_arg, uint16_t *msi_arg)
1358 {
1359 	uint64_t	value;
1360 	int		rval = SUCCESS;
1361 
1362 	if (strcmp(input, "all") == 0) {
1363 		*flags_arg |= MSI_ALL_FLAG;
1364 	} else if (strstr(input, ",") == NULL) {
1365 		if ((rval = get_value64(input, &value, HEX_ONLY)) == SUCCESS)
1366 			*msi_arg = (uint16_t)value;
1367 
1368 		if (*msi_arg != value) {
1369 			(void) fprintf(stderr,
1370 			    "msi argument must fit into 16 bits.\n");
1371 			rval = FAILURE;
1372 		} else {
1373 			*flags_arg |= MSI_SPEC_FLAG;
1374 		}
1375 	} else if (strtok(input, ",")) {
1376 		input = strtok(NULL, ",");
1377 		if (input == NULL) {
1378 			(void) fprintf(stderr, "msi argument is need.\n");
1379 			return (FAILURE);
1380 		}
1381 
1382 		if ((rval = get_value64(input, &value, HEX_ONLY)) == SUCCESS)
1383 			*msi_arg = (uint16_t)value;
1384 
1385 		if (*msi_arg != value) {
1386 			(void) fprintf(stderr,
1387 			    "msi argument must fit into 16 bits.\n");
1388 			rval = FAILURE;
1389 		} else {
1390 			*flags_arg |= MSI_SPEC_FLAG;
1391 		}
1392 	} else {
1393 		(void) fprintf(stderr,
1394 		    "Unrecognized option for -m\n");
1395 		rval = FAILURE;
1396 	}
1397 
1398 	return (rval);
1399 }
1400 
1401 
1402 /*
1403  * Parse interrupt set options.  This includes:
1404  *   cpu=number
1405  *
1406  * input is the string of options to parse.  flags_arg returns modified with
1407  * specified options set.  Other args return their respective values.
1408  */
1409 static int
1410 parse_intr_set_opts(char *input, uint64_t *flags_arg, uint32_t *cpu_arg)
1411 {
1412 	uint64_t	value;
1413 	int		rval = SUCCESS;
1414 
1415 	if ((rval = get_value64(input, &value, HEX_ONLY)) == SUCCESS) {
1416 
1417 		if ((long)value > sysconf(_SC_CPUID_MAX)) {
1418 			(void) fprintf(stderr, "Cpu argument "
1419 			    "exceeds maximum for this system type.\n");
1420 			rval = FAILURE;
1421 		} else {
1422 			*cpu_arg = (uint32_t)value;
1423 			*flags_arg |= CPU_SPEC_FLAG;
1424 		}
1425 	} else {
1426 		(void) fprintf(stderr,
1427 		    "Unrecognized option for -i -m -w\n");
1428 			rval = FAILURE;
1429 	}
1430 
1431 	return (rval);
1432 }
1433 
1434 
1435 static int
1436 parse_probeone_opts(
1437     char *input, uint64_t *flags_arg, uint8_t *bus_arg, uint8_t *device_arg,
1438     uint8_t *func_arg)
1439 {
1440 	typedef enum {
1441 		bus = 0,
1442 		dev = 1,
1443 		func = 2,
1444 		bdf = 3
1445 	} p1_bdf_opts_index_t;
1446 
1447 	/* Needed by getsubopt(3C) */
1448 	static char *p1_bdf_opts[] = {
1449 		"bus",
1450 		"dev",
1451 		"func",
1452 		"bdf",
1453 		NULL };
1454 
1455 	char *value;		/* Current suboption being processed. */
1456 
1457 	int rval = SUCCESS;
1458 
1459 	while ((*input != '\0') && (rval == SUCCESS)) {
1460 		switch (getsubopt(&input, p1_bdf_opts, &value)) {
1461 
1462 		/* bus=number */
1463 		case bdf: {
1464 			char *bvalue, *dvalue, *fvalue;
1465 
1466 			if ((rval = extract_bdf(value, &bvalue, &dvalue,
1467 			    &fvalue)) != SUCCESS) {
1468 				break;
1469 			}
1470 			if (bvalue)
1471 				if ((rval = extract_bdf_arg(bvalue, "bus",
1472 				    BUS_SPEC_FLAG, flags_arg, bus_arg)) !=
1473 				    SUCCESS) {
1474 					break;
1475 				}
1476 			if (dvalue)
1477 				if ((rval = extract_bdf_arg(dvalue, "dev",
1478 				    DEV_SPEC_FLAG, flags_arg, device_arg)) !=
1479 				    SUCCESS) {
1480 				break;
1481 			}
1482 			if (fvalue)
1483 				rval = extract_bdf_arg(fvalue, "func",
1484 				    FUNC_SPEC_FLAG, flags_arg, func_arg);
1485 			break;
1486 		}
1487 
1488 		case bus:
1489 			rval = extract_bdf_arg(value, "bus", BUS_SPEC_FLAG,
1490 			    flags_arg, bus_arg);
1491 			break;
1492 
1493 		/* dev=number */
1494 		case dev:
1495 			rval = extract_bdf_arg(value, "dev", DEV_SPEC_FLAG,
1496 			    flags_arg, device_arg);
1497 			break;
1498 
1499 		/* func=number */
1500 		case func:
1501 			rval = extract_bdf_arg(value, "func", FUNC_SPEC_FLAG,
1502 			    flags_arg, func_arg);
1503 			break;
1504 
1505 		default:
1506 			(void) fprintf(stderr, "Unrecognized option for -p\n");
1507 			rval = FAILURE;
1508 			break;
1509 		}
1510 	}
1511 
1512 	return (rval);
1513 }
1514 
1515 
1516 #ifdef DEBUG
1517 
1518 static void
1519 dump_struct(pcitool_uiargs_t *dumpthis) {
1520 	(void) printf("flags:0x%x\n", dumpthis->flags);
1521 	(void) printf("bus:%d (0x%x)\n",
1522 	    dumpthis->bus, dumpthis->bus);
1523 	(void) printf("device:%d (0x%x)\n", dumpthis->device,
1524 	    dumpthis->device);
1525 	(void) printf("function:%d (0x%x)\n", dumpthis->function,
1526 	    dumpthis->function);
1527 	(void) printf("write_value:%" PRIu64 " (0x%" PRIx64 ")\n",
1528 	    dumpthis->write_value, dumpthis->write_value);
1529 	(void) printf("bank:%d (0x%x)\n",
1530 	    dumpthis->bank, dumpthis->bank);
1531 	(void) printf("offset:%d (0x%x)\n", dumpthis->offset, dumpthis->offset);
1532 	(void) printf("size:%d, endian:%s\n", dumpthis->size,
1533 	    dumpthis->big_endian ? "BIG" : "little");
1534 	(void) printf("ino:%d, cpu:%d\n",
1535 	    dumpthis->intr_ino, dumpthis->intr_cpu);
1536 }
1537 
1538 #ifdef STANDALONE
1539 
1540 /* Test program for this module.  Useful when implementing new options. */
1541 int
1542 main(int argc, char *argv[])
1543 {
1544 	int status;
1545 	pcitool_uiargs_t parsed_args;
1546 
1547 	status = get_commandline_args(argc, argv, &parsed_args);
1548 	if (status) {
1549 		(void) printf("Error getting command.\n");
1550 	}
1551 	dump_struct(&parsed_args);
1552 
1553 	return (SUCCESS);
1554 }
1555 
1556 #endif	/* STANDALONE */
1557 #endif	/* DEBUG */
1558