4 * Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
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14 * notice, this list of conditions and the following disclaimer in
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
49 #include <sys/queue.h>
51 #include <linux/binfmts.h>
53 #include <rte_common.h>
54 #include <rte_debug.h>
55 #include <rte_memory.h>
56 #include <rte_memzone.h>
57 #include <rte_launch.h>
58 #include <rte_tailq.h>
60 #include <rte_eal_memconfig.h>
61 #include <rte_per_lcore.h>
62 #include <rte_lcore.h>
64 #include <rte_random.h>
65 #include <rte_cycles.h>
66 #include <rte_string_fns.h>
67 #include <rte_cpuflags.h>
68 #include <rte_interrupts.h>
70 #include <rte_common.h>
71 #include <rte_version.h>
72 #include <rte_atomic.h>
73 #include <malloc_heap.h>
75 #include "eal_private.h"
76 #include "eal_thread.h"
77 #include "eal_internal_cfg.h"
78 #include "eal_filesystem.h"
79 #include "eal_hugepages.h"
81 #define OPT_HUGE_DIR "huge-dir"
82 #define OPT_PROC_TYPE "proc-type"
83 #define OPT_NO_SHCONF "no-shconf"
84 #define OPT_NO_HPET "no-hpet"
85 #define OPT_VMWARE_TSC_MAP "vmware-tsc-map"
86 #define OPT_NO_PCI "no-pci"
87 #define OPT_NO_HUGE "no-huge"
88 #define OPT_FILE_PREFIX "file-prefix"
89 #define OPT_SOCKET_MEM "socket-mem"
90 #define OPT_USE_DEVICE "use-device"
91 #define OPT_SYSLOG "syslog"
93 #define RTE_EAL_BLACKLIST_SIZE 0x100
95 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
97 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
99 #define BITS_PER_HEX 4
101 #define GET_BLACKLIST_FIELD(in, fd, lim, dlm) \
106 val = strtoul((in), &end, 16); \
107 if (errno != 0 || end[0] != (dlm) || val > (lim)) \
109 (fd) = (typeof (fd))val; \
113 /* Allow the application to print its usage message too if set */
114 static rte_usage_hook_t rte_application_usage_hook = NULL;
115 /* early configuration structure, when memory config is not mmapped */
116 static struct rte_mem_config early_mem_config;
118 /* define fd variable here, because file needs to be kept open for the
119 * duration of the program, as we hold a write lock on it in the primary proc */
120 static int mem_cfg_fd = -1;
122 static struct flock wr_lock = {
124 .l_whence = SEEK_SET,
125 .l_start = offsetof(struct rte_mem_config, memseg),
126 .l_len = sizeof(early_mem_config.memseg),
129 /* Address of global and public configuration */
130 static struct rte_config rte_config = {
131 .mem_config = &early_mem_config,
134 static struct rte_pci_addr eal_dev_blacklist[RTE_EAL_BLACKLIST_SIZE];
136 /* internal configuration (per-core) */
137 struct lcore_config lcore_config[RTE_MAX_LCORE];
139 /* internal configuration */
140 struct internal_config internal_config;
142 /* used by rte_rdtsc() */
143 int rte_cycles_vmware_tsc_map;
145 /* Return a pointer to the configuration structure */
147 rte_eal_get_configuration(void)
152 /* parse a sysfs (or other) file containing one integer value */
154 eal_parse_sysfs_value(const char *filename, unsigned long *val)
160 if ((f = fopen(filename, "r")) == NULL) {
161 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
166 if (fgets(buf, sizeof(buf), f) == NULL) {
167 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
172 *val = strtoul(buf, &end, 0);
173 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
174 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
184 /* create memory configuration in shared/mmap memory. Take out
185 * a write lock on the memsegs, so we can auto-detect primary/secondary.
186 * This means we never close the file while running (auto-close on exit).
187 * We also don't lock the whole file, so that in future we can use read-locks
188 * on other parts, e.g. memzones, to detect if there are running secondary
191 rte_eal_config_create(void)
193 void *rte_mem_cfg_addr;
196 const char *pathname = eal_runtime_config_path();
198 if (internal_config.no_shconf)
202 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
204 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
207 retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
210 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
213 retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
216 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
217 "process running?\n", pathname);
220 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
221 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
223 if (rte_mem_cfg_addr == MAP_FAILED){
224 rte_panic("Cannot mmap memory for rte_config\n");
226 memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
227 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
230 /* attach to an existing shared memory config */
232 rte_eal_config_attach(void)
234 void *rte_mem_cfg_addr;
235 const char *pathname = eal_runtime_config_path();
237 if (internal_config.no_shconf)
241 mem_cfg_fd = open(pathname, O_RDWR);
243 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
246 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
247 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
249 if (rte_mem_cfg_addr == MAP_FAILED)
250 rte_panic("Cannot mmap memory for rte_config\n");
252 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
255 /* Detect if we are a primary or a secondary process */
256 static enum rte_proc_type_t
257 eal_proc_type_detect(void)
259 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
260 const char *pathname = eal_runtime_config_path();
262 /* if we can open the file but not get a write-lock we are a secondary
263 * process. NOTE: if we get a file handle back, we keep that open
264 * and don't close it to prevent a race condition between multiple opens */
265 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
266 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
267 ptype = RTE_PROC_SECONDARY;
269 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
270 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
275 /* Sets up rte_config structure with the pointer to shared memory config.*/
277 rte_config_init(void)
279 /* set the magic in configuration structure */
280 rte_config.magic = RTE_MAGIC;
281 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
282 eal_proc_type_detect() : /* for auto, detect the type */
283 internal_config.process_type; /* otherwise use what's already set */
285 switch (rte_config.process_type){
286 case RTE_PROC_PRIMARY:
287 rte_eal_config_create();
289 case RTE_PROC_SECONDARY:
290 rte_eal_config_attach();
291 rte_eal_mcfg_wait_complete(rte_config.mem_config);
294 case RTE_PROC_INVALID:
295 rte_panic("Invalid process type\n");
299 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
301 eal_hugedirs_unlock(void)
305 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
307 /* skip uninitialized */
308 if (internal_config.hugepage_info[i].lock_descriptor == 0)
310 /* unlock hugepage file */
311 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
312 close(internal_config.hugepage_info[i].lock_descriptor);
313 /* reset the field */
314 internal_config.hugepage_info[i].lock_descriptor = 0;
320 eal_usage(const char *prgname)
322 printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
323 "[--proc-type primary|secondary|auto] \n\n"
325 " -c COREMASK : A hexadecimal bitmask of cores to run on\n"
326 " -n NUM : Number of memory channels\n"
327 " -v : Display version information on startup\n"
328 " -b <domain:bus:devid.func>: to prevent EAL from using specified "
330 " (multiple -b options are allowed)\n"
331 " -m MB : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
332 " -r NUM : force number of memory ranks (don't detect)\n"
333 " --"OPT_SYSLOG" : set syslog facility\n"
334 " --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
335 " sockets (use comma separated values)\n"
336 " --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
337 " --"OPT_PROC_TYPE" : type of this process\n"
338 " --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
339 " --"OPT_USE_DEVICE": use the specified ethernet device(s) only."
340 "Use comma-separate <[domain:]bus:devid.func> values.\n"
341 " [NOTE: Cannot be used with -b option]\n"
342 " --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of "
344 "\nEAL options for DEBUG use only:\n"
345 " --"OPT_NO_HUGE" : use malloc instead of hugetlbfs\n"
346 " --"OPT_NO_PCI" : disable pci\n"
347 " --"OPT_NO_HPET" : disable hpet\n"
348 " --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
351 /* Allow the application to print its usage message too if hook is set */
352 if ( rte_application_usage_hook ) {
353 printf("===== Application Usage =====\n\n");
354 rte_application_usage_hook(prgname);
358 /* Set a per-application usage message */
360 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
362 rte_usage_hook_t old_func;
364 /* Will be NULL on the first call to denote the last usage routine. */
365 old_func = rte_application_usage_hook;
366 rte_application_usage_hook = usage_func;
372 * Parse the coremask given as argument (hexadecimal string) and fill
373 * the global configuration (core role and core count) with the parsed
376 static int xdigit2val(unsigned char c)
388 eal_parse_coremask(const char *coremask)
390 struct rte_config *cfg = rte_eal_get_configuration();
396 if (coremask == NULL)
398 /* Remove all blank characters ahead and after .
399 * Remove 0x/0X if exists.
401 while (isblank(*coremask))
403 if (coremask[0] == '0' && ((coremask[1] == 'x')
404 || (coremask[1] == 'X')) )
406 i = strnlen(coremask, MAX_ARG_STRLEN);
407 while ((i > 0) && isblank(coremask[i - 1]))
412 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
414 if (isxdigit(c) == 0) {
415 /* invalid characters */
419 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
421 cfg->lcore_role[idx] = ROLE_RTE;
423 cfg->master_lcore = idx;
426 cfg->lcore_role[idx] = ROLE_OFF;
431 if(coremask[i] != '0')
433 for(; idx < RTE_MAX_LCORE; idx++)
434 cfg->lcore_role[idx] = ROLE_OFF;
441 eal_parse_syslog(const char *facility)
448 { "auth", LOG_AUTH },
449 { "cron", LOG_CRON },
450 { "daemon", LOG_DAEMON },
452 { "kern", LOG_KERN },
454 { "mail", LOG_MAIL },
455 { "news", LOG_NEWS },
456 { "syslog", LOG_SYSLOG },
457 { "user", LOG_USER },
458 { "uucp", LOG_UUCP },
459 { "local0", LOG_LOCAL0 },
460 { "local1", LOG_LOCAL1 },
461 { "local2", LOG_LOCAL2 },
462 { "local3", LOG_LOCAL3 },
463 { "local4", LOG_LOCAL4 },
464 { "local5", LOG_LOCAL5 },
465 { "local6", LOG_LOCAL6 },
466 { "local7", LOG_LOCAL7 },
470 for (i = 0; map[i].name; i++) {
471 if (!strcmp(facility, map[i].name)) {
472 internal_config.syslog_facility = map[i].value;
480 eal_parse_socket_mem(char *socket_mem)
482 char * arg[RTE_MAX_NUMA_NODES];
485 uint64_t total_mem = 0;
487 len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
488 if (len == SOCKET_MEM_STRLEN) {
489 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
493 /* all other error cases will be caught later */
494 if (!isdigit(socket_mem[len-1]))
497 /* split the optarg into separate socket values */
498 arg_num = rte_strsplit(socket_mem, len,
499 arg, RTE_MAX_NUMA_NODES, ',');
501 /* if split failed, or 0 arguments */
505 internal_config.force_sockets = 1;
507 /* parse each defined socket option */
509 for (i = 0; i < arg_num; i++) {
511 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
513 /* check for invalid input */
515 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
517 internal_config.socket_mem[i] *= 1024ULL;
518 internal_config.socket_mem[i] *= 1024ULL;
519 total_mem += internal_config.socket_mem[i];
522 /* check if we have a positive amount of total memory */
530 eal_get_hugepage_mem_size(void)
535 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
536 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
537 if (hpi->hugedir != NULL) {
538 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
539 size += hpi->hugepage_sz * hpi->num_pages[j];
544 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
547 static enum rte_proc_type_t
548 eal_parse_proc_type(const char *arg)
550 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
551 return RTE_PROC_PRIMARY;
552 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
553 return RTE_PROC_SECONDARY;
554 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
555 return RTE_PROC_AUTO;
557 return RTE_PROC_INVALID;
561 eal_parse_blacklist_opt(const char *optarg, size_t idx)
563 if (idx >= sizeof (eal_dev_blacklist) / sizeof (eal_dev_blacklist[0])) {
564 RTE_LOG(ERR, EAL, "%s - too many devices to blacklist...\n", optarg);
566 } else if (eal_parse_pci_DomBDF(optarg, eal_dev_blacklist + idx) < 0 &&
567 eal_parse_pci_BDF(optarg, eal_dev_blacklist + idx) < 0) {
568 RTE_LOG(ERR, EAL, "%s - invalid device to blacklist...\n", optarg);
576 /* Parse the argument given in the command line of the application */
578 eal_parse_args(int argc, char **argv)
584 ssize_t blacklist_index = 0;
585 char *prgname = argv[0];
586 static struct option lgopts[] = {
587 {OPT_NO_HUGE, 0, 0, 0},
588 {OPT_NO_PCI, 0, 0, 0},
589 {OPT_NO_HPET, 0, 0, 0},
590 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
591 {OPT_HUGE_DIR, 1, 0, 0},
592 {OPT_NO_SHCONF, 0, 0, 0},
593 {OPT_PROC_TYPE, 1, 0, 0},
594 {OPT_FILE_PREFIX, 1, 0, 0},
595 {OPT_SOCKET_MEM, 1, 0, 0},
596 {OPT_USE_DEVICE, 1, 0, 0},
597 {OPT_SYSLOG, 1, NULL, 0},
603 internal_config.memory = 0;
604 internal_config.force_nrank = 0;
605 internal_config.force_nchannel = 0;
606 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
607 internal_config.hugepage_dir = NULL;
608 internal_config.force_sockets = 0;
609 internal_config.syslog_facility = LOG_DAEMON;
610 #ifdef RTE_LIBEAL_USE_HPET
611 internal_config.no_hpet = 0;
613 internal_config.no_hpet = 1;
615 /* zero out the NUMA config */
616 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
617 internal_config.socket_mem[i] = 0;
619 /* zero out hugedir descriptors */
620 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
621 internal_config.hugepage_info[i].lock_descriptor = 0;
623 internal_config.vmware_tsc_map = 0;
625 while ((opt = getopt_long(argc, argvopt, "b:c:m:n:r:v",
626 lgopts, &option_index)) != EOF) {
631 if ((blacklist_index = eal_parse_blacklist_opt(optarg,
632 blacklist_index)) < 0) {
639 if (eal_parse_coremask(optarg) < 0) {
640 RTE_LOG(ERR, EAL, "invalid coremask\n");
648 internal_config.memory = atoi(optarg);
649 internal_config.memory *= 1024ULL;
650 internal_config.memory *= 1024ULL;
652 /* force number of channels */
654 internal_config.force_nchannel = atoi(optarg);
655 if (internal_config.force_nchannel == 0 ||
656 internal_config.force_nchannel > 4) {
657 RTE_LOG(ERR, EAL, "invalid channel number\n");
662 /* force number of ranks */
664 internal_config.force_nrank = atoi(optarg);
665 if (internal_config.force_nrank == 0 ||
666 internal_config.force_nrank > 16) {
667 RTE_LOG(ERR, EAL, "invalid rank number\n");
673 /* since message is explicitly requested by user, we
674 * write message at highest log level so it can always be seen
675 * even if info or warning messages are disabled */
676 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
681 if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
682 internal_config.no_hugetlbfs = 1;
684 else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
685 internal_config.no_pci = 1;
687 else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
688 internal_config.no_hpet = 1;
690 else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
691 internal_config.vmware_tsc_map = 1;
693 else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
694 internal_config.no_shconf = 1;
696 else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
697 internal_config.hugepage_dir = optarg;
699 else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
700 internal_config.process_type = eal_parse_proc_type(optarg);
702 else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
703 internal_config.hugefile_prefix = optarg;
705 else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
706 if (eal_parse_socket_mem(optarg) < 0) {
707 RTE_LOG(ERR, EAL, "invalid parameters for --"
708 OPT_SOCKET_MEM "\n");
713 else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
714 eal_dev_whitelist_add_entry(optarg);
716 else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
717 if (eal_parse_syslog(optarg) < 0) {
718 RTE_LOG(ERR, EAL, "invalid parameters for --"
734 RTE_LOG(ERR, EAL, "coremask not specified\n");
738 if (internal_config.process_type == RTE_PROC_AUTO){
739 internal_config.process_type = eal_proc_type_detect();
741 if (internal_config.process_type == RTE_PROC_INVALID){
742 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
746 if (internal_config.process_type == RTE_PROC_PRIMARY &&
747 internal_config.force_nchannel == 0) {
748 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
752 if (index(internal_config.hugefile_prefix,'%') != NULL){
753 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
757 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
758 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
759 "at the same time\n");
763 /* --no-huge doesn't make sense with either -m or --socket-mem */
764 if (internal_config.no_hugetlbfs &&
765 (internal_config.memory > 0 ||
766 internal_config.force_sockets == 1)) {
767 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
768 "together with --no-huge!\n");
773 /* if no blacklist, parse a whitelist */
774 if (blacklist_index > 0) {
775 if (eal_dev_whitelist_exists()) {
776 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
777 "[--use-device] options cannot be used at the same time\n");
781 rte_eal_pci_set_blacklist(eal_dev_blacklist, blacklist_index);
783 if (eal_dev_whitelist_exists() && eal_dev_whitelist_parse() < 0) {
784 RTE_LOG(ERR,EAL, "Error parsing whitelist[--use-device] options\n");
790 argv[optind-1] = prgname;
792 /* if no memory amounts were requested, this will result in 0 and
793 * will be overriden later, right after eal_hugepage_info_init() */
794 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
795 internal_config.memory += internal_config.socket_mem[i];
798 optind = 0; /* reset getopt lib */
803 eal_check_mem_on_local_socket(void)
805 const struct rte_memseg *ms;
808 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
810 ms = rte_eal_get_physmem_layout();
812 for (i = 0; i < RTE_MAX_MEMSEG; i++)
813 if (ms[i].socket_id == socket_id &&
817 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
818 "memory on local socket!\n");
822 sync_func(__attribute__((unused)) void *arg)
828 rte_eal_mcfg_complete(void)
830 /* ALL shared mem_config related INIT DONE */
831 if (rte_config.process_type == RTE_PROC_PRIMARY)
832 rte_config.mem_config->magic = RTE_MAGIC;
835 /* Launch threads, called at application init(). */
837 rte_eal_init(int argc, char **argv)
841 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
843 if (!rte_atomic32_test_and_set(&run_once))
846 thread_id = pthread_self();
848 if (rte_eal_log_early_init() < 0)
849 rte_panic("Cannot init early logs\n");
851 fctret = eal_parse_args(argc, argv);
855 if (internal_config.no_hugetlbfs == 0 &&
856 internal_config.process_type != RTE_PROC_SECONDARY &&
857 eal_hugepage_info_init() < 0)
858 rte_panic("Cannot get hugepage information\n");
860 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
861 if (internal_config.no_hugetlbfs)
862 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
864 internal_config.memory = eal_get_hugepage_mem_size();
867 if (internal_config.vmware_tsc_map == 1) {
868 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
869 rte_cycles_vmware_tsc_map = 1;
870 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
871 "you must have monitor_control.pseudo_perfctr = TRUE\n");
873 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
874 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
878 rte_srand(rte_rdtsc());
882 if (rte_eal_cpu_init() < 0)
883 rte_panic("Cannot detect lcores\n");
885 if (rte_eal_memory_init() < 0)
886 rte_panic("Cannot init memory\n");
888 /* the directories are locked during eal_hugepage_info_init */
889 eal_hugedirs_unlock();
891 if (rte_eal_memzone_init() < 0)
892 rte_panic("Cannot init memzone\n");
894 if (rte_eal_tailqs_init() < 0)
895 rte_panic("Cannot init tail queues for objects\n");
897 if (rte_eal_log_init(argv[0], internal_config.syslog_facility) < 0)
898 rte_panic("Cannot init logs\n");
900 if (rte_eal_alarm_init() < 0)
901 rte_panic("Cannot init interrupt-handling thread\n");
903 if (rte_eal_intr_init() < 0)
904 rte_panic("Cannot init interrupt-handling thread\n");
906 if (rte_eal_timer_init() < 0)
907 rte_panic("Cannot init HPET or TSC timers\n");
909 if (rte_eal_pci_init() < 0)
910 rte_panic("Cannot init PCI\n");
912 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
913 rte_config.master_lcore, (int)thread_id);
915 eal_check_mem_on_local_socket();
917 rte_eal_mcfg_complete();
919 if (rte_eal_non_pci_ethdev_init() < 0)
920 rte_panic("Cannot init non-PCI eth_devs\n");
922 RTE_LCORE_FOREACH_SLAVE(i) {
925 * create communication pipes between master thread
928 if (pipe(lcore_config[i].pipe_master2slave) < 0)
929 rte_panic("Cannot create pipe\n");
930 if (pipe(lcore_config[i].pipe_slave2master) < 0)
931 rte_panic("Cannot create pipe\n");
933 lcore_config[i].state = WAIT;
935 /* create a thread for each lcore */
936 ret = pthread_create(&lcore_config[i].thread_id, NULL,
937 eal_thread_loop, NULL);
939 rte_panic("Cannot create thread\n");
942 eal_thread_init_master(rte_config.master_lcore);
945 * Launch a dummy function on all slave lcores, so that master lcore
946 * knows they are all ready when this function returns.
948 rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
949 rte_eal_mp_wait_lcore();
955 enum rte_lcore_role_t
956 rte_eal_lcore_role(unsigned lcore_id)
958 return (rte_config.lcore_role[lcore_id]);
962 rte_eal_process_type(void)
964 return (rte_config.process_type);