4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2012-2014 6WIND S.A.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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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
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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
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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.
52 #include <sys/queue.h>
55 #include <rte_common.h>
56 #include <rte_debug.h>
57 #include <rte_memory.h>
58 #include <rte_memzone.h>
59 #include <rte_launch.h>
60 #include <rte_tailq.h>
62 #include <rte_eal_memconfig.h>
63 #include <rte_per_lcore.h>
64 #include <rte_lcore.h>
66 #include <rte_random.h>
67 #include <rte_cycles.h>
68 #include <rte_string_fns.h>
69 #include <rte_cpuflags.h>
70 #include <rte_interrupts.h>
72 #include <rte_devargs.h>
73 #include <rte_common.h>
74 #include <rte_version.h>
75 #include <rte_atomic.h>
76 #include <malloc_heap.h>
77 #include <rte_eth_ring.h>
79 #include "eal_private.h"
80 #include "eal_thread.h"
81 #include "eal_internal_cfg.h"
82 #include "eal_filesystem.h"
83 #include "eal_hugepages.h"
84 #include "eal_options.h"
86 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
88 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
92 /* Allow the application to print its usage message too if set */
93 static rte_usage_hook_t rte_application_usage_hook = NULL;
95 TAILQ_HEAD(shared_driver_list, shared_driver);
97 /* Definition for shared object drivers. */
98 struct shared_driver {
99 TAILQ_ENTRY(shared_driver) next;
105 /* List of external loadable drivers */
106 static struct shared_driver_list solib_list =
107 TAILQ_HEAD_INITIALIZER(solib_list);
109 /* early configuration structure, when memory config is not mmapped */
110 static struct rte_mem_config early_mem_config;
112 /* define fd variable here, because file needs to be kept open for the
113 * duration of the program, as we hold a write lock on it in the primary proc */
114 static int mem_cfg_fd = -1;
116 static struct flock wr_lock = {
118 .l_whence = SEEK_SET,
119 .l_start = offsetof(struct rte_mem_config, memseg),
120 .l_len = sizeof(early_mem_config.memseg),
123 /* Address of global and public configuration */
124 static struct rte_config rte_config = {
125 .mem_config = &early_mem_config,
128 /* internal configuration (per-core) */
129 struct lcore_config lcore_config[RTE_MAX_LCORE];
131 /* internal configuration */
132 struct internal_config internal_config;
134 /* used by rte_rdtsc() */
135 int rte_cycles_vmware_tsc_map;
137 /* Return a pointer to the configuration structure */
139 rte_eal_get_configuration(void)
144 /* parse a sysfs (or other) file containing one integer value */
146 eal_parse_sysfs_value(const char *filename, unsigned long *val)
152 if ((f = fopen(filename, "r")) == NULL) {
153 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
158 if (fgets(buf, sizeof(buf), f) == NULL) {
159 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
164 *val = strtoul(buf, &end, 0);
165 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
166 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
176 /* create memory configuration in shared/mmap memory. Take out
177 * a write lock on the memsegs, so we can auto-detect primary/secondary.
178 * This means we never close the file while running (auto-close on exit).
179 * We also don't lock the whole file, so that in future we can use read-locks
180 * on other parts, e.g. memzones, to detect if there are running secondary
183 rte_eal_config_create(void)
185 void *rte_mem_cfg_addr;
188 const char *pathname = eal_runtime_config_path();
190 if (internal_config.no_shconf)
193 /* map the config before hugepage address so that we don't waste a page */
194 if (internal_config.base_virtaddr != 0)
195 rte_mem_cfg_addr = (void *)
196 RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
197 sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
199 rte_mem_cfg_addr = NULL;
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(rte_mem_cfg_addr, 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;
229 /* store address of the config in the config itself so that secondary
230 * processes could later map the config into this exact location */
231 rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
235 /* attach to an existing shared memory config */
237 rte_eal_config_attach(void)
239 struct rte_mem_config *mem_config;
241 const char *pathname = eal_runtime_config_path();
243 if (internal_config.no_shconf)
247 mem_cfg_fd = open(pathname, O_RDWR);
249 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
252 /* map it as read-only first */
253 mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
254 PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
255 if (mem_config == MAP_FAILED)
256 rte_panic("Cannot mmap memory for rte_config\n");
258 rte_config.mem_config = mem_config;
261 /* reattach the shared config at exact memory location primary process has it */
263 rte_eal_config_reattach(void)
265 struct rte_mem_config *mem_config;
266 void *rte_mem_cfg_addr;
268 if (internal_config.no_shconf)
271 /* save the address primary process has mapped shared config to */
272 rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
274 /* unmap original config */
275 munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
277 /* remap the config at proper address */
278 mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
279 sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
282 if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
283 rte_panic("Cannot mmap memory for rte_config\n");
285 rte_config.mem_config = mem_config;
288 /* Detect if we are a primary or a secondary process */
289 static enum rte_proc_type_t
290 eal_proc_type_detect(void)
292 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
293 const char *pathname = eal_runtime_config_path();
295 /* if we can open the file but not get a write-lock we are a secondary
296 * process. NOTE: if we get a file handle back, we keep that open
297 * and don't close it to prevent a race condition between multiple opens */
298 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
299 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
300 ptype = RTE_PROC_SECONDARY;
302 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
303 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
308 /* Sets up rte_config structure with the pointer to shared memory config.*/
310 rte_config_init(void)
312 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
313 eal_proc_type_detect() : /* for auto, detect the type */
314 internal_config.process_type; /* otherwise use what's already set */
316 switch (rte_config.process_type){
317 case RTE_PROC_PRIMARY:
318 rte_eal_config_create();
320 case RTE_PROC_SECONDARY:
321 rte_eal_config_attach();
322 rte_eal_mcfg_wait_complete(rte_config.mem_config);
323 rte_eal_config_reattach();
326 case RTE_PROC_INVALID:
327 rte_panic("Invalid process type\n");
331 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
333 eal_hugedirs_unlock(void)
337 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
339 /* skip uninitialized */
340 if (internal_config.hugepage_info[i].lock_descriptor < 0)
342 /* unlock hugepage file */
343 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
344 close(internal_config.hugepage_info[i].lock_descriptor);
345 /* reset the field */
346 internal_config.hugepage_info[i].lock_descriptor = -1;
352 eal_usage(const char *prgname)
354 printf("\nUsage: %s ", prgname);
356 printf("EAL Linux options:\n"
357 " -d LIB.so : add driver (can be used multiple times)\n"
358 " --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
359 "without hugetlbfs\n"
360 " --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
361 " sockets (use comma separated values)\n"
362 " --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
363 " --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
364 " --"OPT_BASE_VIRTADDR": specify base virtual address\n"
365 " --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
366 "(legacy|msi|msix)\n"
367 " --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
369 /* Allow the application to print its usage message too if hook is set */
370 if ( rte_application_usage_hook ) {
371 printf("===== Application Usage =====\n\n");
372 rte_application_usage_hook(prgname);
376 /* Set a per-application usage message */
378 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
380 rte_usage_hook_t old_func;
382 /* Will be NULL on the first call to denote the last usage routine. */
383 old_func = rte_application_usage_hook;
384 rte_application_usage_hook = usage_func;
390 eal_parse_socket_mem(char *socket_mem)
392 char * arg[RTE_MAX_NUMA_NODES];
395 uint64_t total_mem = 0;
397 len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
398 if (len == SOCKET_MEM_STRLEN) {
399 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
403 /* all other error cases will be caught later */
404 if (!isdigit(socket_mem[len-1]))
407 /* split the optarg into separate socket values */
408 arg_num = rte_strsplit(socket_mem, len,
409 arg, RTE_MAX_NUMA_NODES, ',');
411 /* if split failed, or 0 arguments */
415 internal_config.force_sockets = 1;
417 /* parse each defined socket option */
419 for (i = 0; i < arg_num; i++) {
421 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
423 /* check for invalid input */
425 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
427 internal_config.socket_mem[i] *= 1024ULL;
428 internal_config.socket_mem[i] *= 1024ULL;
429 total_mem += internal_config.socket_mem[i];
432 /* check if we have a positive amount of total memory */
440 eal_parse_base_virtaddr(const char *arg)
446 addr = strtoull(arg, &end, 16);
448 /* check for errors */
449 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
452 /* make sure we don't exceed 32-bit boundary on 32-bit target */
453 #ifndef RTE_ARCH_X86_64
454 if (addr >= UINTPTR_MAX)
458 /* align the addr on 2M boundary */
459 internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
466 eal_parse_vfio_intr(const char *mode)
471 enum rte_intr_mode value;
473 { "legacy", RTE_INTR_MODE_LEGACY },
474 { "msi", RTE_INTR_MODE_MSI },
475 { "msix", RTE_INTR_MODE_MSIX },
478 for (i = 0; i < RTE_DIM(map); i++) {
479 if (!strcmp(mode, map[i].name)) {
480 internal_config.vfio_intr_mode = map[i].value;
488 eal_get_hugepage_mem_size(void)
493 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
494 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
495 if (hpi->hugedir != NULL) {
496 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
497 size += hpi->hugepage_sz * hpi->num_pages[j];
502 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
505 /* Parse the argument given in the command line of the application */
507 eal_parse_args(int argc, char **argv)
513 char *prgname = argv[0];
514 struct shared_driver *solib;
518 internal_config.memory = 0;
519 internal_config.force_nrank = 0;
520 internal_config.force_nchannel = 0;
521 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
522 internal_config.hugepage_dir = NULL;
523 internal_config.force_sockets = 0;
524 internal_config.syslog_facility = LOG_DAEMON;
525 /* default value from build option */
526 internal_config.log_level = RTE_LOG_LEVEL;
527 internal_config.xen_dom0_support = 0;
528 /* if set to NONE, interrupt mode is determined automatically */
529 internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
530 #ifdef RTE_LIBEAL_USE_HPET
531 internal_config.no_hpet = 0;
533 internal_config.no_hpet = 1;
535 /* zero out the NUMA config */
536 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
537 internal_config.socket_mem[i] = 0;
539 /* zero out hugedir descriptors */
540 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
541 internal_config.hugepage_info[i].lock_descriptor = -1;
543 internal_config.vmware_tsc_map = 0;
544 internal_config.base_virtaddr = 0;
546 while ((opt = getopt_long(argc, argvopt, eal_short_options,
547 eal_long_options, &option_index)) != EOF) {
551 /* getopt is not happy, stop right now */
555 ret = eal_parse_common_option(opt, optarg, &internal_config);
556 /* common parser is not happy */
561 /* common parser handled this option */
563 /* special case, note that the common parser accepted
564 * the coremask option */
571 /* force loading of external driver */
573 solib = malloc(sizeof(*solib));
575 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
578 memset(solib, 0, sizeof(*solib));
579 strncpy(solib->name, optarg, PATH_MAX-1);
580 solib->name[PATH_MAX-1] = 0;
581 TAILQ_INSERT_TAIL(&solib_list, solib, next);
585 case OPT_XEN_DOM0_NUM:
586 #ifdef RTE_LIBRTE_XEN_DOM0
587 internal_config.xen_dom0_support = 1;
589 RTE_LOG(ERR, EAL, "Can't support DPDK app "
590 "running on Dom0, please configure"
591 " RTE_LIBRTE_XEN_DOM0=y\n");
596 case OPT_HUGE_DIR_NUM:
597 internal_config.hugepage_dir = optarg;
600 case OPT_FILE_PREFIX_NUM:
601 internal_config.hugefile_prefix = optarg;
604 case OPT_SOCKET_MEM_NUM:
605 if (eal_parse_socket_mem(optarg) < 0) {
606 RTE_LOG(ERR, EAL, "invalid parameters for --"
607 OPT_SOCKET_MEM "\n");
613 case OPT_BASE_VIRTADDR_NUM:
614 if (eal_parse_base_virtaddr(optarg) < 0) {
615 RTE_LOG(ERR, EAL, "invalid parameter for --"
616 OPT_BASE_VIRTADDR "\n");
622 case OPT_VFIO_INTR_NUM:
623 if (eal_parse_vfio_intr(optarg) < 0) {
624 RTE_LOG(ERR, EAL, "invalid parameters for --"
631 case OPT_CREATE_UIO_DEV_NUM:
632 internal_config.create_uio_dev = 1;
636 if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
637 RTE_LOG(ERR, EAL, "Option %c is not supported "
639 } else if (opt >= OPT_LONG_MIN_NUM &&
640 opt < OPT_LONG_MAX_NUM) {
641 RTE_LOG(ERR, EAL, "Option %s is not supported "
643 eal_long_options[option_index].name);
645 RTE_LOG(ERR, EAL, "Option %d is not supported "
655 RTE_LOG(ERR, EAL, "coremask not specified\n");
659 if (internal_config.process_type == RTE_PROC_AUTO){
660 internal_config.process_type = eal_proc_type_detect();
662 if (internal_config.process_type == RTE_PROC_INVALID){
663 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
667 if (internal_config.process_type == RTE_PROC_PRIMARY &&
668 internal_config.force_nchannel == 0) {
669 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
673 if (index(internal_config.hugefile_prefix,'%') != NULL){
674 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
678 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
679 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
680 "at the same time\n");
684 /* --no-huge doesn't make sense with either -m or --socket-mem */
685 if (internal_config.no_hugetlbfs &&
686 (internal_config.memory > 0 ||
687 internal_config.force_sockets == 1)) {
688 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
689 "together with --no-huge!\n");
693 /* --xen-dom0 doesn't make sense with --socket-mem */
694 if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
695 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
696 "together with --xen_dom0!\n");
701 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
702 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
703 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
704 "[-w] options cannot be used at the same time\n");
710 argv[optind-1] = prgname;
712 /* if no memory amounts were requested, this will result in 0 and
713 * will be overriden later, right after eal_hugepage_info_init() */
714 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
715 internal_config.memory += internal_config.socket_mem[i];
718 optind = 0; /* reset getopt lib */
723 eal_check_mem_on_local_socket(void)
725 const struct rte_memseg *ms;
728 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
730 ms = rte_eal_get_physmem_layout();
732 for (i = 0; i < RTE_MAX_MEMSEG; i++)
733 if (ms[i].socket_id == socket_id &&
737 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
738 "memory on local socket!\n");
742 sync_func(__attribute__((unused)) void *arg)
748 rte_eal_mcfg_complete(void)
750 /* ALL shared mem_config related INIT DONE */
751 if (rte_config.process_type == RTE_PROC_PRIMARY)
752 rte_config.mem_config->magic = RTE_MAGIC;
756 * Request iopl privilege for all RPL, returns 0 on success
759 rte_eal_iopl_init(void)
761 return iopl(HIGHEST_RPL);
764 /* Launch threads, called at application init(). */
766 rte_eal_init(int argc, char **argv)
770 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
771 struct shared_driver *solib = NULL;
774 if (!rte_atomic32_test_and_set(&run_once))
777 logid = strrchr(argv[0], '/');
778 logid = strdup(logid ? logid + 1: argv[0]);
780 thread_id = pthread_self();
782 if (rte_eal_log_early_init() < 0)
783 rte_panic("Cannot init early logs\n");
785 if (rte_eal_cpu_init() < 0)
786 rte_panic("Cannot detect lcores\n");
788 fctret = eal_parse_args(argc, argv);
792 /* set log level as early as possible */
793 rte_set_log_level(internal_config.log_level);
795 if (internal_config.no_hugetlbfs == 0 &&
796 internal_config.process_type != RTE_PROC_SECONDARY &&
797 internal_config.xen_dom0_support == 0 &&
798 eal_hugepage_info_init() < 0)
799 rte_panic("Cannot get hugepage information\n");
801 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
802 if (internal_config.no_hugetlbfs)
803 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
805 internal_config.memory = eal_get_hugepage_mem_size();
808 if (internal_config.vmware_tsc_map == 1) {
809 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
810 rte_cycles_vmware_tsc_map = 1;
811 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
812 "you must have monitor_control.pseudo_perfctr = TRUE\n");
814 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
815 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
819 rte_srand(rte_rdtsc());
823 if (rte_eal_iopl_init() == 0)
824 rte_config.flags |= EAL_FLG_HIGH_IOPL;
826 if (rte_eal_pci_init() < 0)
827 rte_panic("Cannot init PCI\n");
829 #ifdef RTE_LIBRTE_IVSHMEM
830 if (rte_eal_ivshmem_init() < 0)
831 rte_panic("Cannot init IVSHMEM\n");
834 if (rte_eal_memory_init() < 0)
835 rte_panic("Cannot init memory\n");
837 /* the directories are locked during eal_hugepage_info_init */
838 eal_hugedirs_unlock();
840 if (rte_eal_memzone_init() < 0)
841 rte_panic("Cannot init memzone\n");
843 if (rte_eal_tailqs_init() < 0)
844 rte_panic("Cannot init tail queues for objects\n");
846 #ifdef RTE_LIBRTE_IVSHMEM
847 if (rte_eal_ivshmem_obj_init() < 0)
848 rte_panic("Cannot init IVSHMEM objects\n");
851 if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
852 rte_panic("Cannot init logs\n");
854 if (rte_eal_alarm_init() < 0)
855 rte_panic("Cannot init interrupt-handling thread\n");
857 if (rte_eal_intr_init() < 0)
858 rte_panic("Cannot init interrupt-handling thread\n");
860 if (rte_eal_timer_init() < 0)
861 rte_panic("Cannot init HPET or TSC timers\n");
863 eal_check_mem_on_local_socket();
865 rte_eal_mcfg_complete();
867 TAILQ_FOREACH(solib, &solib_list, next) {
868 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
869 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
870 if (solib->lib_handle == NULL)
871 RTE_LOG(WARNING, EAL, "%s\n", dlerror());
874 eal_thread_init_master(rte_config.master_lcore);
876 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
877 rte_config.master_lcore, (int)thread_id);
879 if (rte_eal_dev_init() < 0)
880 rte_panic("Cannot init pmd devices\n");
882 RTE_LCORE_FOREACH_SLAVE(i) {
885 * create communication pipes between master thread
888 if (pipe(lcore_config[i].pipe_master2slave) < 0)
889 rte_panic("Cannot create pipe\n");
890 if (pipe(lcore_config[i].pipe_slave2master) < 0)
891 rte_panic("Cannot create pipe\n");
893 lcore_config[i].state = WAIT;
895 /* create a thread for each lcore */
896 ret = pthread_create(&lcore_config[i].thread_id, NULL,
897 eal_thread_loop, NULL);
899 rte_panic("Cannot create thread\n");
903 * Launch a dummy function on all slave lcores, so that master lcore
904 * knows they are all ready when this function returns.
906 rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
907 rte_eal_mp_wait_lcore();
909 /* Probe & Initialize PCI devices */
910 if (rte_eal_pci_probe())
911 rte_panic("Cannot probe PCI\n");
917 enum rte_lcore_role_t
918 rte_eal_lcore_role(unsigned lcore_id)
920 return (rte_config.lcore_role[lcore_id]);
924 rte_eal_process_type(void)
926 return (rte_config.process_type);
929 int rte_eal_has_hugepages(void)
931 return ! internal_config.no_hugetlbfs;