4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2014 6WIND S.A.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * * Neither the name of Intel Corporation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50 #include <sys/queue.h>
52 #include <rte_common.h>
53 #include <rte_debug.h>
54 #include <rte_memory.h>
55 #include <rte_memzone.h>
56 #include <rte_launch.h>
57 #include <rte_tailq.h>
59 #include <rte_eal_memconfig.h>
60 #include <rte_per_lcore.h>
61 #include <rte_lcore.h>
63 #include <rte_random.h>
64 #include <rte_cycles.h>
65 #include <rte_string_fns.h>
66 #include <rte_cpuflags.h>
67 #include <rte_interrupts.h>
70 #include <rte_devargs.h>
71 #include <rte_common.h>
72 #include <rte_version.h>
73 #include <rte_atomic.h>
74 #include <malloc_heap.h>
75 #include <rte_eth_ring.h>
77 #include "eal_private.h"
78 #include "eal_thread.h"
79 #include "eal_internal_cfg.h"
80 #include "eal_filesystem.h"
81 #include "eal_hugepages.h"
83 #define OPT_HUGE_DIR "huge-dir"
84 #define OPT_PROC_TYPE "proc-type"
85 #define OPT_NO_SHCONF "no-shconf"
86 #define OPT_NO_HPET "no-hpet"
87 #define OPT_VMWARE_TSC_MAP "vmware-tsc-map"
88 #define OPT_NO_PCI "no-pci"
89 #define OPT_NO_HUGE "no-huge"
90 #define OPT_FILE_PREFIX "file-prefix"
91 #define OPT_SOCKET_MEM "socket-mem"
92 #define OPT_USE_DEVICE "use-device"
93 #define OPT_PCI_WHITELIST "pci-whitelist"
94 #define OPT_PCI_BLACKLIST "pci-blacklist"
95 #define OPT_VDEV "vdev"
96 #define OPT_SYSLOG "syslog"
98 #define RTE_EAL_BLACKLIST_SIZE 0x100
100 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
102 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
104 #define HIGHEST_RPL 3
106 #define BITS_PER_HEX 4
108 #define GET_BLACKLIST_FIELD(in, fd, lim, dlm) \
113 val = strtoul((in), &end, 16); \
114 if (errno != 0 || end[0] != (dlm) || val > (lim)) \
116 (fd) = (typeof (fd))val; \
120 /* Allow the application to print its usage message too if set */
121 static rte_usage_hook_t rte_application_usage_hook = NULL;
122 /* early configuration structure, when memory config is not mmapped */
123 static struct rte_mem_config early_mem_config;
125 /* define fd variable here, because file needs to be kept open for the
126 * duration of the program, as we hold a write lock on it in the primary proc */
127 static int mem_cfg_fd = -1;
129 static struct flock wr_lock = {
131 .l_whence = SEEK_SET,
132 .l_start = offsetof(struct rte_mem_config, memseg),
133 .l_len = sizeof(early_mem_config.memseg),
136 /* Address of global and public configuration */
137 static struct rte_config rte_config = {
138 .mem_config = &early_mem_config,
141 /* internal configuration (per-core) */
142 struct lcore_config lcore_config[RTE_MAX_LCORE];
144 /* internal configuration */
145 struct internal_config internal_config;
147 /* used by rte_rdtsc() */
148 int rte_cycles_vmware_tsc_map;
150 /* Return a pointer to the configuration structure */
152 rte_eal_get_configuration(void)
157 /* parse a sysfs (or other) file containing one integer value */
159 eal_parse_sysfs_value(const char *filename, unsigned long *val)
165 if ((f = fopen(filename, "r")) == NULL) {
166 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
171 if (fgets(buf, sizeof(buf), f) == NULL) {
172 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
177 *val = strtoul(buf, &end, 0);
178 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
179 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
189 /* create memory configuration in shared/mmap memory. Take out
190 * a write lock on the memsegs, so we can auto-detect primary/secondary.
191 * This means we never close the file while running (auto-close on exit).
192 * We also don't lock the whole file, so that in future we can use read-locks
193 * on other parts, e.g. memzones, to detect if there are running secondary
196 rte_eal_config_create(void)
198 void *rte_mem_cfg_addr;
201 const char *pathname = eal_runtime_config_path();
203 if (internal_config.no_shconf)
207 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
209 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
212 retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
215 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
218 retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
221 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
222 "process running?\n", pathname);
225 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
226 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
228 if (rte_mem_cfg_addr == MAP_FAILED){
229 rte_panic("Cannot mmap memory for rte_config\n");
231 memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
232 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
235 /* attach to an existing shared memory config */
237 rte_eal_config_attach(void)
239 void *rte_mem_cfg_addr;
240 const char *pathname = eal_runtime_config_path();
242 if (internal_config.no_shconf)
246 mem_cfg_fd = open(pathname, O_RDWR);
248 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
251 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
252 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
254 if (rte_mem_cfg_addr == MAP_FAILED)
255 rte_panic("Cannot mmap memory for rte_config\n");
257 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
260 /* Detect if we are a primary or a secondary process */
261 static enum rte_proc_type_t
262 eal_proc_type_detect(void)
264 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
265 const char *pathname = eal_runtime_config_path();
267 /* if we can open the file but not get a write-lock we are a secondary
268 * process. NOTE: if we get a file handle back, we keep that open
269 * and don't close it to prevent a race condition between multiple opens */
270 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
271 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
272 ptype = RTE_PROC_SECONDARY;
274 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
275 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
280 /* Sets up rte_config structure with the pointer to shared memory config.*/
282 rte_config_init(void)
284 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
285 eal_proc_type_detect() : /* for auto, detect the type */
286 internal_config.process_type; /* otherwise use what's already set */
288 switch (rte_config.process_type){
289 case RTE_PROC_PRIMARY:
290 rte_eal_config_create();
292 case RTE_PROC_SECONDARY:
293 rte_eal_config_attach();
294 rte_eal_mcfg_wait_complete(rte_config.mem_config);
297 case RTE_PROC_INVALID:
298 rte_panic("Invalid process type\n");
304 eal_usage(const char *prgname)
306 printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
307 "[--proc-type primary|secondary|auto] \n\n"
309 " -c COREMASK : A hexadecimal bitmask of cores to run on\n"
310 " -n NUM : Number of memory channels\n"
311 " -v : Display version information on startup\n"
312 " -m MB : memory to allocate\n"
313 " -r NUM : force number of memory ranks (don't detect)\n"
314 " --"OPT_PROC_TYPE" : type of this process\n"
315 " --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
316 " Prevent EAL from using this PCI device. The argument\n"
317 " format is <domain:bus:devid.func>.\n"
318 " --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
319 " Only use the specified PCI devices. The argument format\n"
320 " is <[domain:]bus:devid.func>. This option can be present\n"
321 " several times (once per device).\n"
322 " [NOTE: PCI whitelist cannot be used with -b option]\n"
323 " --"OPT_VDEV": add a virtual device.\n"
324 " The argument format is <driver><id>[,key=val,...]\n"
325 " (ex: --vdev=eth_pcap0,iface=eth2).\n"
326 " --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
327 "\nEAL options for DEBUG use only:\n"
328 " --"OPT_NO_HUGE" : use malloc instead of hugetlbfs\n"
329 " --"OPT_NO_PCI" : disable pci\n"
330 " --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
333 /* Allow the application to print its usage message too if hook is set */
334 if ( rte_application_usage_hook ) {
335 printf("===== Application Usage =====\n\n");
336 rte_application_usage_hook(prgname);
340 /* Set a per-application usage message */
342 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
344 rte_usage_hook_t old_func;
346 /* Will be NULL on the first call to denote the last usage routine. */
347 old_func = rte_application_usage_hook;
348 rte_application_usage_hook = usage_func;
354 * Parse the coremask given as argument (hexadecimal string) and fill
355 * the global configuration (core role and core count) with the parsed
358 static int xdigit2val(unsigned char c)
370 eal_parse_coremask(const char *coremask)
372 struct rte_config *cfg = rte_eal_get_configuration();
378 if (coremask == NULL)
380 /* Remove all blank characters ahead and after .
381 * Remove 0x/0X if exists.
383 while (isblank(*coremask))
385 if (coremask[0] == '0' && ((coremask[1] == 'x')
386 || (coremask[1] == 'X')) )
388 i = strnlen(coremask, sysconf(_SC_ARG_MAX));
389 while ((i > 0) && isblank(coremask[i - 1]))
394 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
396 if (isxdigit(c) == 0) {
397 /* invalid characters */
401 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
403 cfg->lcore_role[idx] = ROLE_RTE;
405 cfg->master_lcore = idx;
408 cfg->lcore_role[idx] = ROLE_OFF;
413 if(coremask[i] != '0')
415 for(; idx < RTE_MAX_LCORE; idx++)
416 cfg->lcore_role[idx] = ROLE_OFF;
423 eal_parse_syslog(const char *facility)
430 { "auth", LOG_AUTH },
431 { "cron", LOG_CRON },
432 { "daemon", LOG_DAEMON },
434 { "kern", LOG_KERN },
436 { "mail", LOG_MAIL },
437 { "news", LOG_NEWS },
438 { "syslog", LOG_SYSLOG },
439 { "user", LOG_USER },
440 { "uucp", LOG_UUCP },
441 { "local0", LOG_LOCAL0 },
442 { "local1", LOG_LOCAL1 },
443 { "local2", LOG_LOCAL2 },
444 { "local3", LOG_LOCAL3 },
445 { "local4", LOG_LOCAL4 },
446 { "local5", LOG_LOCAL5 },
447 { "local6", LOG_LOCAL6 },
448 { "local7", LOG_LOCAL7 },
452 for (i = 0; map[i].name; i++) {
453 if (!strcmp(facility, map[i].name)) {
454 internal_config.syslog_facility = map[i].value;
462 eal_get_hugepage_mem_size(void)
467 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
468 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
469 if (hpi->hugedir != NULL) {
470 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
471 size += hpi->hugepage_sz * hpi->num_pages[j];
476 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
479 static enum rte_proc_type_t
480 eal_parse_proc_type(const char *arg)
482 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
483 return RTE_PROC_PRIMARY;
484 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
485 return RTE_PROC_SECONDARY;
486 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
487 return RTE_PROC_AUTO;
489 return RTE_PROC_INVALID;
492 /* Parse the argument given in the command line of the application */
494 eal_parse_args(int argc, char **argv)
500 char *prgname = argv[0];
501 static struct option lgopts[] = {
502 {OPT_NO_HUGE, 0, 0, 0},
503 {OPT_NO_PCI, 0, 0, 0},
504 {OPT_NO_HPET, 0, 0, 0},
505 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
506 {OPT_HUGE_DIR, 1, 0, 0},
507 {OPT_NO_SHCONF, 0, 0, 0},
508 {OPT_PROC_TYPE, 1, 0, 0},
509 {OPT_FILE_PREFIX, 1, 0, 0},
510 {OPT_SOCKET_MEM, 1, 0, 0},
511 {OPT_PCI_WHITELIST, 1, 0, 0},
512 {OPT_PCI_BLACKLIST, 1, 0, 0},
514 {OPT_SYSLOG, 1, NULL, 0},
520 internal_config.memory = 0;
521 internal_config.force_nrank = 0;
522 internal_config.force_nchannel = 0;
523 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
524 internal_config.hugepage_dir = NULL;
525 internal_config.force_sockets = 0;
526 internal_config.syslog_facility = LOG_DAEMON;
527 #ifdef RTE_LIBEAL_USE_HPET
528 internal_config.no_hpet = 0;
530 internal_config.no_hpet = 1;
532 /* zero out the NUMA config */
533 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
534 internal_config.socket_mem[i] = 0;
536 /* zero out hugedir descriptors */
537 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
538 internal_config.hugepage_info[i].lock_descriptor = 0;
540 internal_config.vmware_tsc_map = 0;
542 while ((opt = getopt_long(argc, argvopt, "b:w:c:m:n:r:v",
543 lgopts, &option_index)) != EOF) {
548 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
556 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
564 if (eal_parse_coremask(optarg) < 0) {
565 RTE_LOG(ERR, EAL, "invalid coremask\n");
573 internal_config.memory = atoi(optarg);
574 internal_config.memory *= 1024ULL;
575 internal_config.memory *= 1024ULL;
577 /* force number of channels */
579 internal_config.force_nchannel = atoi(optarg);
580 if (internal_config.force_nchannel == 0 ||
581 internal_config.force_nchannel > 4) {
582 RTE_LOG(ERR, EAL, "invalid channel number\n");
587 /* force number of ranks */
589 internal_config.force_nrank = atoi(optarg);
590 if (internal_config.force_nrank == 0 ||
591 internal_config.force_nrank > 16) {
592 RTE_LOG(ERR, EAL, "invalid rank number\n");
598 /* since message is explicitly requested by user, we
599 * write message at highest log level so it can always be seen
600 * even if info or warning messages are disabled */
601 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
606 if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
607 internal_config.no_hugetlbfs = 1;
609 else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
610 internal_config.no_pci = 1;
612 else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
613 internal_config.no_hpet = 1;
615 else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
616 internal_config.vmware_tsc_map = 1;
618 else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
619 internal_config.no_shconf = 1;
621 else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
622 RTE_LOG(ERR, EAL, "Option "OPT_HUGE_DIR" is not supported on"
626 else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
627 internal_config.process_type = eal_parse_proc_type(optarg);
629 else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
630 RTE_LOG(ERR, EAL, "Option "OPT_FILE_PREFIX" is not supported on"
634 else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
635 RTE_LOG(ERR, EAL, "Option "OPT_SOCKET_MEM" is not supported on"
639 else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
640 printf("The --use-device option is deprecated, please use\n"
641 "--whitelist or --vdev instead.\n");
645 else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
646 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
652 else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
653 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
659 else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
660 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
666 else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
667 if (eal_parse_syslog(optarg) < 0) {
668 RTE_LOG(ERR, EAL, "invalid parameters for --"
684 RTE_LOG(ERR, EAL, "coremask not specified\n");
688 if (internal_config.process_type == RTE_PROC_AUTO){
689 internal_config.process_type = eal_proc_type_detect();
691 if (internal_config.process_type == RTE_PROC_INVALID){
692 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
696 if (internal_config.process_type == RTE_PROC_PRIMARY &&
697 internal_config.force_nchannel == 0) {
698 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
702 if (index(internal_config.hugefile_prefix,'%') != NULL){
703 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
707 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
708 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
709 "at the same time\n");
713 /* --no-huge doesn't make sense with either -m or --socket-mem */
714 if (internal_config.no_hugetlbfs &&
715 (internal_config.memory > 0 ||
716 internal_config.force_sockets == 1)) {
717 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
718 "together with --no-huge!\n");
723 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
724 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
725 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
726 "[-w] options cannot be used at the same time\n");
732 argv[optind-1] = prgname;
734 /* if no memory amounts were requested, this will result in 0 and
735 * will be overriden later, right after eal_hugepage_info_init() */
736 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
737 internal_config.memory += internal_config.socket_mem[i];
740 optind = 0; /* reset getopt lib */
745 eal_check_mem_on_local_socket(void)
747 const struct rte_memseg *ms;
750 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
752 ms = rte_eal_get_physmem_layout();
754 for (i = 0; i < RTE_MAX_MEMSEG; i++)
755 if (ms[i].socket_id == socket_id &&
759 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
760 "memory on local socket!\n");
764 sync_func(__attribute__((unused)) void *arg)
770 rte_eal_mcfg_complete(void)
772 /* ALL shared mem_config related INIT DONE */
773 if (rte_config.process_type == RTE_PROC_PRIMARY)
774 rte_config.mem_config->magic = RTE_MAGIC;
777 /* return non-zero if hugepages are enabled. */
778 int rte_eal_has_hugepages(void)
780 return !internal_config.no_hugetlbfs;
783 /* Abstraction for port I/0 privilege */
785 rte_eal_iopl_init(void)
788 fd = open("/dev/io", O_RDWR);
794 /* Launch threads, called at application init(). */
796 rte_eal_init(int argc, char **argv)
800 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
802 if (!rte_atomic32_test_and_set(&run_once))
805 thread_id = pthread_self();
807 if (rte_eal_log_early_init() < 0)
808 rte_panic("Cannot init early logs\n");
810 fctret = eal_parse_args(argc, argv);
814 if (internal_config.no_hugetlbfs == 0 &&
815 internal_config.process_type != RTE_PROC_SECONDARY &&
816 eal_hugepage_info_init() < 0)
817 rte_panic("Cannot get hugepage information\n");
819 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
820 if (internal_config.no_hugetlbfs)
821 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
823 internal_config.memory = eal_get_hugepage_mem_size();
826 if (internal_config.vmware_tsc_map == 1) {
827 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
828 rte_cycles_vmware_tsc_map = 1;
829 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
830 "you must have monitor_control.pseudo_perfctr = TRUE\n");
832 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
833 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
837 rte_srand(rte_rdtsc());
841 if (rte_eal_iopl_init() == 0)
842 rte_config.flags |= EAL_FLG_HIGH_IOPL;
844 if (rte_eal_cpu_init() < 0)
845 rte_panic("Cannot detect lcores\n");
847 if (rte_eal_memory_init() < 0)
848 rte_panic("Cannot init memory\n");
850 if (rte_eal_memzone_init() < 0)
851 rte_panic("Cannot init memzone\n");
853 if (rte_eal_tailqs_init() < 0)
854 rte_panic("Cannot init tail queues for objects\n");
856 /* if (rte_eal_log_init(argv[0], internal_config.syslog_facility) < 0)
857 rte_panic("Cannot init logs\n");*/
859 if (rte_eal_alarm_init() < 0)
860 rte_panic("Cannot init interrupt-handling thread\n");
862 if (rte_eal_intr_init() < 0)
863 rte_panic("Cannot init interrupt-handling thread\n");
865 if (rte_eal_timer_init() < 0)
866 rte_panic("Cannot init HPET or TSC timers\n");
868 if (rte_eal_pci_init() < 0)
869 rte_panic("Cannot init PCI\n");
871 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%p)\n",
872 rte_config.master_lcore, thread_id);
874 eal_check_mem_on_local_socket();
876 rte_eal_mcfg_complete();
878 if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
879 rte_panic("Cannot init pmd devices\n");
881 RTE_LCORE_FOREACH_SLAVE(i) {
884 * create communication pipes between master thread
887 if (pipe(lcore_config[i].pipe_master2slave) < 0)
888 rte_panic("Cannot create pipe\n");
889 if (pipe(lcore_config[i].pipe_slave2master) < 0)
890 rte_panic("Cannot create pipe\n");
892 lcore_config[i].state = WAIT;
894 /* create a thread for each lcore */
895 ret = pthread_create(&lcore_config[i].thread_id, NULL,
896 eal_thread_loop, NULL);
898 rte_panic("Cannot create thread\n");
901 eal_thread_init_master(rte_config.master_lcore);
904 * Launch a dummy function on all slave lcores, so that master lcore
905 * knows they are all ready when this function returns.
907 rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
908 rte_eal_mp_wait_lcore();
910 /* Probe & Initialize PCI devices */
911 if (rte_eal_pci_probe())
912 rte_panic("Cannot probe PCI\n");
914 /* Initialize any outstanding devices */
915 if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
916 rte_panic("Cannot init pmd devices\n");
922 enum rte_lcore_role_t
923 rte_eal_lcore_role(unsigned lcore_id)
925 return (rte_config.lcore_role[lcore_id]);
929 rte_eal_process_type(void)
931 return (rte_config.process_type);