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[ceph.git] / ceph / src / dpdk / lib / librte_eal / common / eal_common_options.c
1 /*-
2 * BSD LICENSE
3 *
4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2014 6WIND S.A.
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 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <stdlib.h>
35 #include <unistd.h>
36 #include <string.h>
37 #include <syslog.h>
38 #include <ctype.h>
39 #include <limits.h>
40 #include <errno.h>
41 #include <getopt.h>
42 #include <dlfcn.h>
43 #include <sys/types.h>
44 #include <sys/stat.h>
45 #include <dirent.h>
46
47 #include <rte_eal.h>
48 #include <rte_log.h>
49 #include <rte_lcore.h>
50 #include <rte_version.h>
51 #include <rte_devargs.h>
52 #include <rte_memcpy.h>
53
54 #include "eal_internal_cfg.h"
55 #include "eal_options.h"
56 #include "eal_filesystem.h"
57
58 #define BITS_PER_HEX 4
59
60 const char
61 eal_short_options[] =
62 "b:" /* pci-blacklist */
63 "c:" /* coremask */
64 "d:" /* driver */
65 "h" /* help */
66 "l:" /* corelist */
67 "m:" /* memory size */
68 "n:" /* memory channels */
69 "r:" /* memory ranks */
70 "v" /* version */
71 "w:" /* pci-whitelist */
72 ;
73
74 const struct option
75 eal_long_options[] = {
76 {OPT_BASE_VIRTADDR, 1, NULL, OPT_BASE_VIRTADDR_NUM },
77 {OPT_CREATE_UIO_DEV, 0, NULL, OPT_CREATE_UIO_DEV_NUM },
78 {OPT_FILE_PREFIX, 1, NULL, OPT_FILE_PREFIX_NUM },
79 {OPT_HELP, 0, NULL, OPT_HELP_NUM },
80 {OPT_HUGE_DIR, 1, NULL, OPT_HUGE_DIR_NUM },
81 {OPT_HUGE_UNLINK, 0, NULL, OPT_HUGE_UNLINK_NUM },
82 {OPT_LCORES, 1, NULL, OPT_LCORES_NUM },
83 {OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM },
84 {OPT_MASTER_LCORE, 1, NULL, OPT_MASTER_LCORE_NUM },
85 {OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM },
86 {OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM },
87 {OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM },
88 {OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM },
89 {OPT_PCI_BLACKLIST, 1, NULL, OPT_PCI_BLACKLIST_NUM },
90 {OPT_PCI_WHITELIST, 1, NULL, OPT_PCI_WHITELIST_NUM },
91 {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
92 {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
93 {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
94 {OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
95 {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
96 {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
97 {OPT_XEN_DOM0, 0, NULL, OPT_XEN_DOM0_NUM },
98 {0, 0, NULL, 0 }
99 };
100
101 TAILQ_HEAD(shared_driver_list, shared_driver);
102
103 /* Definition for shared object drivers. */
104 struct shared_driver {
105 TAILQ_ENTRY(shared_driver) next;
106
107 char name[PATH_MAX];
108 void* lib_handle;
109 };
110
111 /* List of external loadable drivers */
112 static struct shared_driver_list solib_list =
113 TAILQ_HEAD_INITIALIZER(solib_list);
114
115 /* Default path of external loadable drivers */
116 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
117
118 /*
119 * Stringified version of solib path used by dpdk-pmdinfo.py
120 * Note: PLEASE DO NOT ALTER THIS without making a corresponding
121 * change to tools/dpdk-pmdinfo.py
122 */
123 static const char dpdk_solib_path[] __attribute__((used)) =
124 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
125
126
127 static int master_lcore_parsed;
128 static int mem_parsed;
129
130 void
131 eal_reset_internal_config(struct internal_config *internal_cfg)
132 {
133 int i;
134
135 internal_cfg->memory = 0;
136 internal_cfg->force_nrank = 0;
137 internal_cfg->force_nchannel = 0;
138 internal_cfg->hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
139 internal_cfg->hugepage_dir = NULL;
140 internal_cfg->force_sockets = 0;
141 /* zero out the NUMA config */
142 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
143 internal_cfg->socket_mem[i] = 0;
144 /* zero out hugedir descriptors */
145 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
146 internal_cfg->hugepage_info[i].lock_descriptor = -1;
147 internal_cfg->base_virtaddr = 0;
148
149 internal_cfg->syslog_facility = LOG_DAEMON;
150 /* default value from build option */
151 #if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
152 internal_cfg->log_level = RTE_LOG_INFO;
153 #else
154 internal_cfg->log_level = RTE_LOG_LEVEL;
155 #endif
156
157 internal_cfg->xen_dom0_support = 0;
158
159 /* if set to NONE, interrupt mode is determined automatically */
160 internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
161
162 #ifdef RTE_LIBEAL_USE_HPET
163 internal_cfg->no_hpet = 0;
164 #else
165 internal_cfg->no_hpet = 1;
166 #endif
167 internal_cfg->vmware_tsc_map = 0;
168 internal_cfg->create_uio_dev = 0;
169 }
170
171 static int
172 eal_plugin_add(const char *path)
173 {
174 struct shared_driver *solib;
175
176 solib = malloc(sizeof(*solib));
177 if (solib == NULL) {
178 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
179 return -1;
180 }
181 memset(solib, 0, sizeof(*solib));
182 strncpy(solib->name, path, PATH_MAX-1);
183 solib->name[PATH_MAX-1] = 0;
184 TAILQ_INSERT_TAIL(&solib_list, solib, next);
185
186 return 0;
187 }
188
189 static int
190 eal_plugindir_init(const char *path)
191 {
192 DIR *d = NULL;
193 struct dirent *dent = NULL;
194 char sopath[PATH_MAX];
195
196 if (path == NULL || *path == '\0')
197 return 0;
198
199 d = opendir(path);
200 if (d == NULL) {
201 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
202 path, strerror(errno));
203 return -1;
204 }
205
206 while ((dent = readdir(d)) != NULL) {
207 struct stat sb;
208
209 snprintf(sopath, PATH_MAX-1, "%s/%s", path, dent->d_name);
210 sopath[PATH_MAX-1] = 0;
211
212 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
213 continue;
214
215 if (eal_plugin_add(sopath) == -1)
216 break;
217 }
218
219 closedir(d);
220 /* XXX this ignores failures from readdir() itself */
221 return (dent == NULL) ? 0 : -1;
222 }
223
224 int
225 eal_plugins_init(void)
226 {
227 struct shared_driver *solib = NULL;
228
229 if (*default_solib_dir != '\0')
230 eal_plugin_add(default_solib_dir);
231
232 TAILQ_FOREACH(solib, &solib_list, next) {
233 struct stat sb;
234
235 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
236 if (eal_plugindir_init(solib->name) == -1) {
237 RTE_LOG(ERR, EAL,
238 "Cannot init plugin directory %s\n",
239 solib->name);
240 return -1;
241 }
242 } else {
243 RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
244 solib->name);
245 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
246 if (solib->lib_handle == NULL) {
247 RTE_LOG(ERR, EAL, "%s\n", dlerror());
248 return -1;
249 }
250 }
251
252 }
253 return 0;
254 }
255
256 /*
257 * Parse the coremask given as argument (hexadecimal string) and fill
258 * the global configuration (core role and core count) with the parsed
259 * value.
260 */
261 static int xdigit2val(unsigned char c)
262 {
263 int val;
264
265 if (isdigit(c))
266 val = c - '0';
267 else if (isupper(c))
268 val = c - 'A' + 10;
269 else
270 val = c - 'a' + 10;
271 return val;
272 }
273
274 static int
275 eal_parse_coremask(const char *coremask)
276 {
277 struct rte_config *cfg = rte_eal_get_configuration();
278 int i, j, idx = 0;
279 unsigned count = 0;
280 char c;
281 int val;
282
283 if (coremask == NULL)
284 return -1;
285 /* Remove all blank characters ahead and after .
286 * Remove 0x/0X if exists.
287 */
288 while (isblank(*coremask))
289 coremask++;
290 if (coremask[0] == '0' && ((coremask[1] == 'x')
291 || (coremask[1] == 'X')))
292 coremask += 2;
293 i = strlen(coremask);
294 while ((i > 0) && isblank(coremask[i - 1]))
295 i--;
296 if (i == 0)
297 return -1;
298
299 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
300 c = coremask[i];
301 if (isxdigit(c) == 0) {
302 /* invalid characters */
303 return -1;
304 }
305 val = xdigit2val(c);
306 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
307 {
308 if ((1 << j) & val) {
309 if (!lcore_config[idx].detected) {
310 RTE_LOG(ERR, EAL, "lcore %u "
311 "unavailable\n", idx);
312 return -1;
313 }
314 cfg->lcore_role[idx] = ROLE_RTE;
315 lcore_config[idx].core_index = count;
316 count++;
317 } else {
318 cfg->lcore_role[idx] = ROLE_OFF;
319 lcore_config[idx].core_index = -1;
320 }
321 }
322 }
323 for (; i >= 0; i--)
324 if (coremask[i] != '0')
325 return -1;
326 for (; idx < RTE_MAX_LCORE; idx++) {
327 cfg->lcore_role[idx] = ROLE_OFF;
328 lcore_config[idx].core_index = -1;
329 }
330 if (count == 0)
331 return -1;
332 /* Update the count of enabled logical cores of the EAL configuration */
333 cfg->lcore_count = count;
334 return 0;
335 }
336
337 static int
338 eal_parse_corelist(const char *corelist)
339 {
340 struct rte_config *cfg = rte_eal_get_configuration();
341 int i, idx = 0;
342 unsigned count = 0;
343 char *end = NULL;
344 int min, max;
345
346 if (corelist == NULL)
347 return -1;
348
349 /* Remove all blank characters ahead and after */
350 while (isblank(*corelist))
351 corelist++;
352 i = strlen(corelist);
353 while ((i > 0) && isblank(corelist[i - 1]))
354 i--;
355
356 /* Reset config */
357 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
358 cfg->lcore_role[idx] = ROLE_OFF;
359 lcore_config[idx].core_index = -1;
360 }
361
362 /* Get list of cores */
363 min = RTE_MAX_LCORE;
364 do {
365 while (isblank(*corelist))
366 corelist++;
367 if (*corelist == '\0')
368 return -1;
369 errno = 0;
370 idx = strtoul(corelist, &end, 10);
371 if (errno || end == NULL)
372 return -1;
373 while (isblank(*end))
374 end++;
375 if (*end == '-') {
376 min = idx;
377 } else if ((*end == ',') || (*end == '\0')) {
378 max = idx;
379 if (min == RTE_MAX_LCORE)
380 min = idx;
381 for (idx = min; idx <= max; idx++) {
382 if (cfg->lcore_role[idx] != ROLE_RTE) {
383 cfg->lcore_role[idx] = ROLE_RTE;
384 lcore_config[idx].core_index = count;
385 count++;
386 }
387 }
388 min = RTE_MAX_LCORE;
389 } else
390 return -1;
391 corelist = end + 1;
392 } while (*end != '\0');
393
394 if (count == 0)
395 return -1;
396
397 /* Update the count of enabled logical cores of the EAL configuration */
398 cfg->lcore_count = count;
399
400 return 0;
401 }
402
403 /* Changes the lcore id of the master thread */
404 static int
405 eal_parse_master_lcore(const char *arg)
406 {
407 char *parsing_end;
408 struct rte_config *cfg = rte_eal_get_configuration();
409
410 errno = 0;
411 cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
412 if (errno || parsing_end[0] != 0)
413 return -1;
414 if (cfg->master_lcore >= RTE_MAX_LCORE)
415 return -1;
416 master_lcore_parsed = 1;
417 return 0;
418 }
419
420 /*
421 * Parse elem, the elem could be single number/range or '(' ')' group
422 * 1) A single number elem, it's just a simple digit. e.g. 9
423 * 2) A single range elem, two digits with a '-' between. e.g. 2-6
424 * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
425 * Within group elem, '-' used for a range separator;
426 * ',' used for a single number.
427 */
428 static int
429 eal_parse_set(const char *input, uint16_t set[], unsigned num)
430 {
431 unsigned idx;
432 const char *str = input;
433 char *end = NULL;
434 unsigned min, max;
435
436 memset(set, 0, num * sizeof(uint16_t));
437
438 while (isblank(*str))
439 str++;
440
441 /* only digit or left bracket is qualify for start point */
442 if ((!isdigit(*str) && *str != '(') || *str == '\0')
443 return -1;
444
445 /* process single number or single range of number */
446 if (*str != '(') {
447 errno = 0;
448 idx = strtoul(str, &end, 10);
449 if (errno || end == NULL || idx >= num)
450 return -1;
451 else {
452 while (isblank(*end))
453 end++;
454
455 min = idx;
456 max = idx;
457 if (*end == '-') {
458 /* process single <number>-<number> */
459 end++;
460 while (isblank(*end))
461 end++;
462 if (!isdigit(*end))
463 return -1;
464
465 errno = 0;
466 idx = strtoul(end, &end, 10);
467 if (errno || end == NULL || idx >= num)
468 return -1;
469 max = idx;
470 while (isblank(*end))
471 end++;
472 if (*end != ',' && *end != '\0')
473 return -1;
474 }
475
476 if (*end != ',' && *end != '\0' &&
477 *end != '@')
478 return -1;
479
480 for (idx = RTE_MIN(min, max);
481 idx <= RTE_MAX(min, max); idx++)
482 set[idx] = 1;
483
484 return end - input;
485 }
486 }
487
488 /* process set within bracket */
489 str++;
490 while (isblank(*str))
491 str++;
492 if (*str == '\0')
493 return -1;
494
495 min = RTE_MAX_LCORE;
496 do {
497
498 /* go ahead to the first digit */
499 while (isblank(*str))
500 str++;
501 if (!isdigit(*str))
502 return -1;
503
504 /* get the digit value */
505 errno = 0;
506 idx = strtoul(str, &end, 10);
507 if (errno || end == NULL || idx >= num)
508 return -1;
509
510 /* go ahead to separator '-',',' and ')' */
511 while (isblank(*end))
512 end++;
513 if (*end == '-') {
514 if (min == RTE_MAX_LCORE)
515 min = idx;
516 else /* avoid continuous '-' */
517 return -1;
518 } else if ((*end == ',') || (*end == ')')) {
519 max = idx;
520 if (min == RTE_MAX_LCORE)
521 min = idx;
522 for (idx = RTE_MIN(min, max);
523 idx <= RTE_MAX(min, max); idx++)
524 set[idx] = 1;
525
526 min = RTE_MAX_LCORE;
527 } else
528 return -1;
529
530 str = end + 1;
531 } while (*end != '\0' && *end != ')');
532
533 /*
534 * to avoid failure that tail blank makes end character check fail
535 * in eal_parse_lcores( )
536 */
537 while (isblank(*str))
538 str++;
539
540 return str - input;
541 }
542
543 /* convert from set array to cpuset bitmap */
544 static int
545 convert_to_cpuset(rte_cpuset_t *cpusetp,
546 uint16_t *set, unsigned num)
547 {
548 unsigned idx;
549
550 CPU_ZERO(cpusetp);
551
552 for (idx = 0; idx < num; idx++) {
553 if (!set[idx])
554 continue;
555
556 if (!lcore_config[idx].detected) {
557 RTE_LOG(ERR, EAL, "core %u "
558 "unavailable\n", idx);
559 return -1;
560 }
561
562 CPU_SET(idx, cpusetp);
563 }
564
565 return 0;
566 }
567
568 /*
569 * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
570 * lcores, cpus could be a single digit/range or a group.
571 * '(' and ')' are necessary if it's a group.
572 * If not supply '@cpus', the value of cpus uses the same as lcores.
573 * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
574 * lcore 0 runs on cpuset 0x41 (cpu 0,6)
575 * lcore 1 runs on cpuset 0x2 (cpu 1)
576 * lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
577 * lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
578 * lcore 6 runs on cpuset 0x41 (cpu 0,6)
579 * lcore 7 runs on cpuset 0x80 (cpu 7)
580 * lcore 8 runs on cpuset 0x100 (cpu 8)
581 */
582 static int
583 eal_parse_lcores(const char *lcores)
584 {
585 struct rte_config *cfg = rte_eal_get_configuration();
586 static uint16_t set[RTE_MAX_LCORE];
587 unsigned idx = 0;
588 unsigned count = 0;
589 const char *lcore_start = NULL;
590 const char *end = NULL;
591 int offset;
592 rte_cpuset_t cpuset;
593 int lflags;
594 int ret = -1;
595
596 if (lcores == NULL)
597 return -1;
598
599 /* Remove all blank characters ahead and after */
600 while (isblank(*lcores))
601 lcores++;
602
603 CPU_ZERO(&cpuset);
604
605 /* Reset lcore config */
606 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
607 cfg->lcore_role[idx] = ROLE_OFF;
608 lcore_config[idx].core_index = -1;
609 CPU_ZERO(&lcore_config[idx].cpuset);
610 }
611
612 /* Get list of cores */
613 do {
614 while (isblank(*lcores))
615 lcores++;
616 if (*lcores == '\0')
617 goto err;
618
619 lflags = 0;
620
621 /* record lcore_set start point */
622 lcore_start = lcores;
623
624 /* go across a complete bracket */
625 if (*lcore_start == '(') {
626 lcores += strcspn(lcores, ")");
627 if (*lcores++ == '\0')
628 goto err;
629 }
630
631 /* scan the separator '@', ','(next) or '\0'(finish) */
632 lcores += strcspn(lcores, "@,");
633
634 if (*lcores == '@') {
635 /* explicit assign cpu_set */
636 offset = eal_parse_set(lcores + 1, set, RTE_DIM(set));
637 if (offset < 0)
638 goto err;
639
640 /* prepare cpu_set and update the end cursor */
641 if (0 > convert_to_cpuset(&cpuset,
642 set, RTE_DIM(set)))
643 goto err;
644 end = lcores + 1 + offset;
645 } else { /* ',' or '\0' */
646 /* haven't given cpu_set, current loop done */
647 end = lcores;
648
649 /* go back to check <number>-<number> */
650 offset = strcspn(lcore_start, "(-");
651 if (offset < (end - lcore_start) &&
652 *(lcore_start + offset) != '(')
653 lflags = 1;
654 }
655
656 if (*end != ',' && *end != '\0')
657 goto err;
658
659 /* parse lcore_set from start point */
660 if (0 > eal_parse_set(lcore_start, set, RTE_DIM(set)))
661 goto err;
662
663 /* without '@', by default using lcore_set as cpu_set */
664 if (*lcores != '@' &&
665 0 > convert_to_cpuset(&cpuset, set, RTE_DIM(set)))
666 goto err;
667
668 /* start to update lcore_set */
669 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
670 if (!set[idx])
671 continue;
672
673 if (cfg->lcore_role[idx] != ROLE_RTE) {
674 lcore_config[idx].core_index = count;
675 cfg->lcore_role[idx] = ROLE_RTE;
676 count++;
677 }
678
679 if (lflags) {
680 CPU_ZERO(&cpuset);
681 CPU_SET(idx, &cpuset);
682 }
683 rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
684 sizeof(rte_cpuset_t));
685 }
686
687 lcores = end + 1;
688 } while (*end != '\0');
689
690 if (count == 0)
691 goto err;
692
693 cfg->lcore_count = count;
694 ret = 0;
695
696 err:
697
698 return ret;
699 }
700
701 static int
702 eal_parse_syslog(const char *facility, struct internal_config *conf)
703 {
704 int i;
705 static struct {
706 const char *name;
707 int value;
708 } map[] = {
709 { "auth", LOG_AUTH },
710 { "cron", LOG_CRON },
711 { "daemon", LOG_DAEMON },
712 { "ftp", LOG_FTP },
713 { "kern", LOG_KERN },
714 { "lpr", LOG_LPR },
715 { "mail", LOG_MAIL },
716 { "news", LOG_NEWS },
717 { "syslog", LOG_SYSLOG },
718 { "user", LOG_USER },
719 { "uucp", LOG_UUCP },
720 { "local0", LOG_LOCAL0 },
721 { "local1", LOG_LOCAL1 },
722 { "local2", LOG_LOCAL2 },
723 { "local3", LOG_LOCAL3 },
724 { "local4", LOG_LOCAL4 },
725 { "local5", LOG_LOCAL5 },
726 { "local6", LOG_LOCAL6 },
727 { "local7", LOG_LOCAL7 },
728 { NULL, 0 }
729 };
730
731 for (i = 0; map[i].name; i++) {
732 if (!strcmp(facility, map[i].name)) {
733 conf->syslog_facility = map[i].value;
734 return 0;
735 }
736 }
737 return -1;
738 }
739
740 static int
741 eal_parse_log_level(const char *level, uint32_t *log_level)
742 {
743 char *end;
744 unsigned long tmp;
745
746 errno = 0;
747 tmp = strtoul(level, &end, 0);
748
749 /* check for errors */
750 if ((errno != 0) || (level[0] == '\0') ||
751 end == NULL || (*end != '\0'))
752 return -1;
753
754 /* log_level is a uint32_t */
755 if (tmp >= UINT32_MAX)
756 return -1;
757
758 *log_level = tmp;
759 return 0;
760 }
761
762 static enum rte_proc_type_t
763 eal_parse_proc_type(const char *arg)
764 {
765 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
766 return RTE_PROC_PRIMARY;
767 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
768 return RTE_PROC_SECONDARY;
769 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
770 return RTE_PROC_AUTO;
771
772 return RTE_PROC_INVALID;
773 }
774
775 int
776 eal_parse_common_option(int opt, const char *optarg,
777 struct internal_config *conf)
778 {
779 switch (opt) {
780 /* blacklist */
781 case 'b':
782 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
783 optarg) < 0) {
784 return -1;
785 }
786 break;
787 /* whitelist */
788 case 'w':
789 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
790 optarg) < 0) {
791 return -1;
792 }
793 break;
794 /* coremask */
795 case 'c':
796 if (eal_parse_coremask(optarg) < 0) {
797 RTE_LOG(ERR, EAL, "invalid coremask\n");
798 return -1;
799 }
800 break;
801 /* corelist */
802 case 'l':
803 if (eal_parse_corelist(optarg) < 0) {
804 RTE_LOG(ERR, EAL, "invalid core list\n");
805 return -1;
806 }
807 break;
808 /* size of memory */
809 case 'm':
810 conf->memory = atoi(optarg);
811 conf->memory *= 1024ULL;
812 conf->memory *= 1024ULL;
813 mem_parsed = 1;
814 break;
815 /* force number of channels */
816 case 'n':
817 conf->force_nchannel = atoi(optarg);
818 if (conf->force_nchannel == 0) {
819 RTE_LOG(ERR, EAL, "invalid channel number\n");
820 return -1;
821 }
822 break;
823 /* force number of ranks */
824 case 'r':
825 conf->force_nrank = atoi(optarg);
826 if (conf->force_nrank == 0 ||
827 conf->force_nrank > 16) {
828 RTE_LOG(ERR, EAL, "invalid rank number\n");
829 return -1;
830 }
831 break;
832 /* force loading of external driver */
833 case 'd':
834 if (eal_plugin_add(optarg) == -1)
835 return -1;
836 break;
837 case 'v':
838 /* since message is explicitly requested by user, we
839 * write message at highest log level so it can always
840 * be seen
841 * even if info or warning messages are disabled */
842 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
843 break;
844
845 /* long options */
846 case OPT_HUGE_UNLINK_NUM:
847 conf->hugepage_unlink = 1;
848 break;
849
850 case OPT_NO_HUGE_NUM:
851 conf->no_hugetlbfs = 1;
852 break;
853
854 case OPT_NO_PCI_NUM:
855 conf->no_pci = 1;
856 break;
857
858 case OPT_NO_HPET_NUM:
859 conf->no_hpet = 1;
860 break;
861
862 case OPT_VMWARE_TSC_MAP_NUM:
863 conf->vmware_tsc_map = 1;
864 break;
865
866 case OPT_NO_SHCONF_NUM:
867 conf->no_shconf = 1;
868 break;
869
870 case OPT_PROC_TYPE_NUM:
871 conf->process_type = eal_parse_proc_type(optarg);
872 break;
873
874 case OPT_MASTER_LCORE_NUM:
875 if (eal_parse_master_lcore(optarg) < 0) {
876 RTE_LOG(ERR, EAL, "invalid parameter for --"
877 OPT_MASTER_LCORE "\n");
878 return -1;
879 }
880 break;
881
882 case OPT_VDEV_NUM:
883 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
884 optarg) < 0) {
885 return -1;
886 }
887 break;
888
889 case OPT_SYSLOG_NUM:
890 if (eal_parse_syslog(optarg, conf) < 0) {
891 RTE_LOG(ERR, EAL, "invalid parameters for --"
892 OPT_SYSLOG "\n");
893 return -1;
894 }
895 break;
896
897 case OPT_LOG_LEVEL_NUM: {
898 uint32_t log;
899
900 if (eal_parse_log_level(optarg, &log) < 0) {
901 RTE_LOG(ERR, EAL,
902 "invalid parameters for --"
903 OPT_LOG_LEVEL "\n");
904 return -1;
905 }
906 conf->log_level = log;
907 break;
908 }
909 case OPT_LCORES_NUM:
910 if (eal_parse_lcores(optarg) < 0) {
911 RTE_LOG(ERR, EAL, "invalid parameter for --"
912 OPT_LCORES "\n");
913 return -1;
914 }
915 break;
916
917 /* don't know what to do, leave this to caller */
918 default:
919 return 1;
920
921 }
922
923 return 0;
924 }
925
926 int
927 eal_adjust_config(struct internal_config *internal_cfg)
928 {
929 int i;
930 struct rte_config *cfg = rte_eal_get_configuration();
931
932 if (internal_config.process_type == RTE_PROC_AUTO)
933 internal_config.process_type = eal_proc_type_detect();
934
935 /* default master lcore is the first one */
936 if (!master_lcore_parsed)
937 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
938
939 /* if no memory amounts were requested, this will result in 0 and
940 * will be overridden later, right after eal_hugepage_info_init() */
941 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
942 internal_cfg->memory += internal_cfg->socket_mem[i];
943
944 return 0;
945 }
946
947 int
948 eal_check_common_options(struct internal_config *internal_cfg)
949 {
950 struct rte_config *cfg = rte_eal_get_configuration();
951
952 if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
953 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
954 return -1;
955 }
956
957 if (internal_cfg->process_type == RTE_PROC_INVALID) {
958 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
959 return -1;
960 }
961 if (index(internal_cfg->hugefile_prefix, '%') != NULL) {
962 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
963 "option\n");
964 return -1;
965 }
966 if (mem_parsed && internal_cfg->force_sockets == 1) {
967 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
968 "be specified at the same time\n");
969 return -1;
970 }
971 if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
972 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
973 "be specified together with --"OPT_NO_HUGE"\n");
974 return -1;
975 }
976
977 if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink) {
978 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
979 "be specified together with --"OPT_NO_HUGE"\n");
980 return -1;
981 }
982
983 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
984 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
985 RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
986 "cannot be used at the same time\n");
987 return -1;
988 }
989
990 return 0;
991 }
992
993 void
994 eal_common_usage(void)
995 {
996 printf("[options]\n\n"
997 "EAL common options:\n"
998 " -c COREMASK Hexadecimal bitmask of cores to run on\n"
999 " -l CORELIST List of cores to run on\n"
1000 " The argument format is <c1>[-c2][,c3[-c4],...]\n"
1001 " where c1, c2, etc are core indexes between 0 and %d\n"
1002 " --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n"
1003 " The argument format is\n"
1004 " '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1005 " lcores and cpus list are grouped by '(' and ')'\n"
1006 " Within the group, '-' is used for range separator,\n"
1007 " ',' is used for single number separator.\n"
1008 " '( )' can be omitted for single element group,\n"
1009 " '@' can be omitted if cpus and lcores have the same value\n"
1010 " --"OPT_MASTER_LCORE" ID Core ID that is used as master\n"
1011 " -n CHANNELS Number of memory channels\n"
1012 " -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1013 " -r RANKS Force number of memory ranks (don't detect)\n"
1014 " -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1015 " Prevent EAL from using this PCI device. The argument\n"
1016 " format is <domain:bus:devid.func>.\n"
1017 " -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1018 " Only use the specified PCI devices. The argument format\n"
1019 " is <[domain:]bus:devid.func>. This option can be present\n"
1020 " several times (once per device).\n"
1021 " [NOTE: PCI whitelist cannot be used with -b option]\n"
1022 " --"OPT_VDEV" Add a virtual device.\n"
1023 " The argument format is <driver><id>[,key=val,...]\n"
1024 " (ex: --vdev=net_pcap0,iface=eth2).\n"
1025 " -d LIB.so|DIR Add a driver or driver directory\n"
1026 " (can be used multiple times)\n"
1027 " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
1028 " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
1029 " --"OPT_SYSLOG" Set syslog facility\n"
1030 " --"OPT_LOG_LEVEL" Set default log level\n"
1031 " -v Display version information on startup\n"
1032 " -h, --help This help\n"
1033 "\nEAL options for DEBUG use only:\n"
1034 " --"OPT_HUGE_UNLINK" Unlink hugepage files after init\n"
1035 " --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n"
1036 " --"OPT_NO_PCI" Disable PCI\n"
1037 " --"OPT_NO_HPET" Disable HPET\n"
1038 " --"OPT_NO_SHCONF" No shared config (mmap'd files)\n"
1039 "\n", RTE_MAX_LCORE);
1040 }
Ceph