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
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
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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>
80 #include "eal_private.h"
81 #include "eal_thread.h"
82 #include "eal_internal_cfg.h"
83 #include "eal_filesystem.h"
84 #include "eal_hugepages.h"
85 #include "eal_options.h"
87 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
89 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
93 /* Allow the application to print its usage message too if set */
94 static rte_usage_hook_t rte_application_usage_hook = NULL;
96 TAILQ_HEAD(shared_driver_list, shared_driver);
98 /* Definition for shared object drivers. */
99 struct shared_driver {
100 TAILQ_ENTRY(shared_driver) next;
106 /* List of external loadable drivers */
107 static struct shared_driver_list solib_list =
108 TAILQ_HEAD_INITIALIZER(solib_list);
110 /* early configuration structure, when memory config is not mmapped */
111 static struct rte_mem_config early_mem_config;
113 /* define fd variable here, because file needs to be kept open for the
114 * duration of the program, as we hold a write lock on it in the primary proc */
115 static int mem_cfg_fd = -1;
117 static struct flock wr_lock = {
119 .l_whence = SEEK_SET,
120 .l_start = offsetof(struct rte_mem_config, memseg),
121 .l_len = sizeof(early_mem_config.memseg),
124 /* Address of global and public configuration */
125 static struct rte_config rte_config = {
126 .mem_config = &early_mem_config,
129 /* internal configuration (per-core) */
130 struct lcore_config lcore_config[RTE_MAX_LCORE];
132 /* internal configuration */
133 struct internal_config internal_config;
135 /* used by rte_rdtsc() */
136 int rte_cycles_vmware_tsc_map;
138 /* Return a pointer to the configuration structure */
140 rte_eal_get_configuration(void)
145 /* parse a sysfs (or other) file containing one integer value */
147 eal_parse_sysfs_value(const char *filename, unsigned long *val)
153 if ((f = fopen(filename, "r")) == NULL) {
154 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
159 if (fgets(buf, sizeof(buf), f) == NULL) {
160 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
165 *val = strtoul(buf, &end, 0);
166 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
167 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
177 /* create memory configuration in shared/mmap memory. Take out
178 * a write lock on the memsegs, so we can auto-detect primary/secondary.
179 * This means we never close the file while running (auto-close on exit).
180 * We also don't lock the whole file, so that in future we can use read-locks
181 * on other parts, e.g. memzones, to detect if there are running secondary
184 rte_eal_config_create(void)
186 void *rte_mem_cfg_addr;
189 const char *pathname = eal_runtime_config_path();
191 if (internal_config.no_shconf)
194 /* map the config before hugepage address so that we don't waste a page */
195 if (internal_config.base_virtaddr != 0)
196 rte_mem_cfg_addr = (void *)
197 RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
198 sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
200 rte_mem_cfg_addr = NULL;
203 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
205 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
208 retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
211 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
214 retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
217 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
218 "process running?\n", pathname);
221 rte_mem_cfg_addr = mmap(rte_mem_cfg_addr, sizeof(*rte_config.mem_config),
222 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
224 if (rte_mem_cfg_addr == MAP_FAILED){
225 rte_panic("Cannot mmap memory for rte_config\n");
227 memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
228 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
230 /* store address of the config in the config itself so that secondary
231 * processes could later map the config into this exact location */
232 rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
236 /* attach to an existing shared memory config */
238 rte_eal_config_attach(void)
240 struct rte_mem_config *mem_config;
242 const char *pathname = eal_runtime_config_path();
244 if (internal_config.no_shconf)
248 mem_cfg_fd = open(pathname, O_RDWR);
250 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
253 /* map it as read-only first */
254 mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
255 PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
256 if (mem_config == MAP_FAILED)
257 rte_panic("Cannot mmap memory for rte_config\n");
259 rte_config.mem_config = mem_config;
262 /* reattach the shared config at exact memory location primary process has it */
264 rte_eal_config_reattach(void)
266 struct rte_mem_config *mem_config;
267 void *rte_mem_cfg_addr;
269 if (internal_config.no_shconf)
272 /* save the address primary process has mapped shared config to */
273 rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
275 /* unmap original config */
276 munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
278 /* remap the config at proper address */
279 mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
280 sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
283 if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
284 rte_panic("Cannot mmap memory for rte_config\n");
286 rte_config.mem_config = mem_config;
289 /* Detect if we are a primary or a secondary process */
290 static enum rte_proc_type_t
291 eal_proc_type_detect(void)
293 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
294 const char *pathname = eal_runtime_config_path();
296 /* if we can open the file but not get a write-lock we are a secondary
297 * process. NOTE: if we get a file handle back, we keep that open
298 * and don't close it to prevent a race condition between multiple opens */
299 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
300 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
301 ptype = RTE_PROC_SECONDARY;
303 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
304 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
309 /* Sets up rte_config structure with the pointer to shared memory config.*/
311 rte_config_init(void)
313 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
314 eal_proc_type_detect() : /* for auto, detect the type */
315 internal_config.process_type; /* otherwise use what's already set */
317 switch (rte_config.process_type){
318 case RTE_PROC_PRIMARY:
319 rte_eal_config_create();
321 case RTE_PROC_SECONDARY:
322 rte_eal_config_attach();
323 rte_eal_mcfg_wait_complete(rte_config.mem_config);
324 rte_eal_config_reattach();
327 case RTE_PROC_INVALID:
328 rte_panic("Invalid process type\n");
332 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
334 eal_hugedirs_unlock(void)
338 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
340 /* skip uninitialized */
341 if (internal_config.hugepage_info[i].lock_descriptor < 0)
343 /* unlock hugepage file */
344 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
345 close(internal_config.hugepage_info[i].lock_descriptor);
346 /* reset the field */
347 internal_config.hugepage_info[i].lock_descriptor = -1;
353 eal_usage(const char *prgname)
355 printf("\nUsage: %s ", prgname);
357 printf("EAL Linux options:\n"
358 " -d LIB.so : add driver (can be used multiple times)\n"
359 " --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
360 "without hugetlbfs\n"
361 " --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
362 " sockets (use comma separated values)\n"
363 " --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
364 " --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
365 " --"OPT_BASE_VIRTADDR": specify base virtual address\n"
366 " --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
367 "(legacy|msi|msix)\n"
368 " --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
370 /* Allow the application to print its usage message too if hook is set */
371 if ( rte_application_usage_hook ) {
372 printf("===== Application Usage =====\n\n");
373 rte_application_usage_hook(prgname);
377 /* Set a per-application usage message */
379 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
381 rte_usage_hook_t old_func;
383 /* Will be NULL on the first call to denote the last usage routine. */
384 old_func = rte_application_usage_hook;
385 rte_application_usage_hook = usage_func;
391 eal_parse_socket_mem(char *socket_mem)
393 char * arg[RTE_MAX_NUMA_NODES];
396 uint64_t total_mem = 0;
398 len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
399 if (len == SOCKET_MEM_STRLEN) {
400 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
404 /* all other error cases will be caught later */
405 if (!isdigit(socket_mem[len-1]))
408 /* split the optarg into separate socket values */
409 arg_num = rte_strsplit(socket_mem, len,
410 arg, RTE_MAX_NUMA_NODES, ',');
412 /* if split failed, or 0 arguments */
416 internal_config.force_sockets = 1;
418 /* parse each defined socket option */
420 for (i = 0; i < arg_num; i++) {
422 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
424 /* check for invalid input */
426 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
428 internal_config.socket_mem[i] *= 1024ULL;
429 internal_config.socket_mem[i] *= 1024ULL;
430 total_mem += internal_config.socket_mem[i];
433 /* check if we have a positive amount of total memory */
441 eal_parse_base_virtaddr(const char *arg)
447 addr = strtoull(arg, &end, 16);
449 /* check for errors */
450 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
453 /* make sure we don't exceed 32-bit boundary on 32-bit target */
454 #ifndef RTE_ARCH_X86_64
455 if (addr >= UINTPTR_MAX)
459 /* align the addr on 2M boundary */
460 internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
467 eal_parse_vfio_intr(const char *mode)
472 enum rte_intr_mode value;
474 { "legacy", RTE_INTR_MODE_LEGACY },
475 { "msi", RTE_INTR_MODE_MSI },
476 { "msix", RTE_INTR_MODE_MSIX },
479 for (i = 0; i < RTE_DIM(map); i++) {
480 if (!strcmp(mode, map[i].name)) {
481 internal_config.vfio_intr_mode = map[i].value;
489 eal_get_hugepage_mem_size(void)
494 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
495 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
496 if (hpi->hugedir != NULL) {
497 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
498 size += hpi->hugepage_sz * hpi->num_pages[j];
503 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
506 /* Parse the argument given in the command line of the application */
508 eal_parse_args(int argc, char **argv)
514 char *prgname = argv[0];
515 struct shared_driver *solib;
519 internal_config.memory = 0;
520 internal_config.force_nrank = 0;
521 internal_config.force_nchannel = 0;
522 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
523 internal_config.hugepage_dir = NULL;
524 internal_config.force_sockets = 0;
525 internal_config.syslog_facility = LOG_DAEMON;
526 /* default value from build option */
527 internal_config.log_level = RTE_LOG_LEVEL;
528 internal_config.xen_dom0_support = 0;
529 /* if set to NONE, interrupt mode is determined automatically */
530 internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
531 #ifdef RTE_LIBEAL_USE_HPET
532 internal_config.no_hpet = 0;
534 internal_config.no_hpet = 1;
536 /* zero out the NUMA config */
537 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
538 internal_config.socket_mem[i] = 0;
540 /* zero out hugedir descriptors */
541 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
542 internal_config.hugepage_info[i].lock_descriptor = -1;
544 internal_config.vmware_tsc_map = 0;
545 internal_config.base_virtaddr = 0;
547 while ((opt = getopt_long(argc, argvopt, eal_short_options,
548 eal_long_options, &option_index)) != EOF) {
552 /* getopt is not happy, stop right now */
556 ret = eal_parse_common_option(opt, optarg, &internal_config);
557 /* common parser is not happy */
562 /* common parser handled this option */
564 /* special case, note that the common parser accepted
565 * the coremask option */
572 /* force loading of external driver */
574 solib = malloc(sizeof(*solib));
576 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
579 memset(solib, 0, sizeof(*solib));
580 strncpy(solib->name, optarg, PATH_MAX-1);
581 solib->name[PATH_MAX-1] = 0;
582 TAILQ_INSERT_TAIL(&solib_list, solib, next);
586 case OPT_XEN_DOM0_NUM:
587 #ifdef RTE_LIBRTE_XEN_DOM0
588 internal_config.xen_dom0_support = 1;
590 RTE_LOG(ERR, EAL, "Can't support DPDK app "
591 "running on Dom0, please configure"
592 " RTE_LIBRTE_XEN_DOM0=y\n");
597 case OPT_HUGE_DIR_NUM:
598 internal_config.hugepage_dir = optarg;
601 case OPT_FILE_PREFIX_NUM:
602 internal_config.hugefile_prefix = optarg;
605 case OPT_SOCKET_MEM_NUM:
606 if (eal_parse_socket_mem(optarg) < 0) {
607 RTE_LOG(ERR, EAL, "invalid parameters for --"
608 OPT_SOCKET_MEM "\n");
614 case OPT_BASE_VIRTADDR_NUM:
615 if (eal_parse_base_virtaddr(optarg) < 0) {
616 RTE_LOG(ERR, EAL, "invalid parameter for --"
617 OPT_BASE_VIRTADDR "\n");
623 case OPT_VFIO_INTR_NUM:
624 if (eal_parse_vfio_intr(optarg) < 0) {
625 RTE_LOG(ERR, EAL, "invalid parameters for --"
632 case OPT_CREATE_UIO_DEV_NUM:
633 internal_config.create_uio_dev = 1;
637 if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
638 RTE_LOG(ERR, EAL, "Option %c is not supported "
640 } else if (opt >= OPT_LONG_MIN_NUM &&
641 opt < OPT_LONG_MAX_NUM) {
642 RTE_LOG(ERR, EAL, "Option %s is not supported "
644 eal_long_options[option_index].name);
646 RTE_LOG(ERR, EAL, "Option %d is not supported "
656 RTE_LOG(ERR, EAL, "coremask not specified\n");
660 if (internal_config.process_type == RTE_PROC_AUTO){
661 internal_config.process_type = eal_proc_type_detect();
663 if (internal_config.process_type == RTE_PROC_INVALID){
664 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
668 if (internal_config.process_type == RTE_PROC_PRIMARY &&
669 internal_config.force_nchannel == 0) {
670 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
674 if (index(internal_config.hugefile_prefix,'%') != NULL){
675 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
679 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
680 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
681 "at the same time\n");
685 /* --no-huge doesn't make sense with either -m or --socket-mem */
686 if (internal_config.no_hugetlbfs &&
687 (internal_config.memory > 0 ||
688 internal_config.force_sockets == 1)) {
689 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
690 "together with --no-huge!\n");
694 /* --xen-dom0 doesn't make sense with --socket-mem */
695 if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
696 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
697 "together with --xen_dom0!\n");
702 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
703 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
704 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
705 "[-w] options cannot be used at the same time\n");
711 argv[optind-1] = prgname;
713 /* if no memory amounts were requested, this will result in 0 and
714 * will be overriden later, right after eal_hugepage_info_init() */
715 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
716 internal_config.memory += internal_config.socket_mem[i];
719 optind = 0; /* reset getopt lib */
724 eal_check_mem_on_local_socket(void)
726 const struct rte_memseg *ms;
729 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
731 ms = rte_eal_get_physmem_layout();
733 for (i = 0; i < RTE_MAX_MEMSEG; i++)
734 if (ms[i].socket_id == socket_id &&
738 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
739 "memory on local socket!\n");
743 sync_func(__attribute__((unused)) void *arg)
749 rte_eal_mcfg_complete(void)
751 /* ALL shared mem_config related INIT DONE */
752 if (rte_config.process_type == RTE_PROC_PRIMARY)
753 rte_config.mem_config->magic = RTE_MAGIC;
757 * Request iopl privilege for all RPL, returns 0 on success
760 rte_eal_iopl_init(void)
762 return iopl(HIGHEST_RPL);
765 /* Launch threads, called at application init(). */
767 rte_eal_init(int argc, char **argv)
771 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
772 struct shared_driver *solib = NULL;
775 if (!rte_atomic32_test_and_set(&run_once))
778 logid = strrchr(argv[0], '/');
779 logid = strdup(logid ? logid + 1: argv[0]);
781 thread_id = pthread_self();
783 if (rte_eal_log_early_init() < 0)
784 rte_panic("Cannot init early logs\n");
786 if (rte_eal_cpu_init() < 0)
787 rte_panic("Cannot detect lcores\n");
789 fctret = eal_parse_args(argc, argv);
793 /* set log level as early as possible */
794 rte_set_log_level(internal_config.log_level);
796 if (internal_config.no_hugetlbfs == 0 &&
797 internal_config.process_type != RTE_PROC_SECONDARY &&
798 internal_config.xen_dom0_support == 0 &&
799 eal_hugepage_info_init() < 0)
800 rte_panic("Cannot get hugepage information\n");
802 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
803 if (internal_config.no_hugetlbfs)
804 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
806 internal_config.memory = eal_get_hugepage_mem_size();
809 if (internal_config.vmware_tsc_map == 1) {
810 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
811 rte_cycles_vmware_tsc_map = 1;
812 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
813 "you must have monitor_control.pseudo_perfctr = TRUE\n");
815 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
816 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
820 rte_srand(rte_rdtsc());
824 if (rte_eal_iopl_init() == 0)
825 rte_config.flags |= EAL_FLG_HIGH_IOPL;
827 if (rte_eal_pci_init() < 0)
828 rte_panic("Cannot init PCI\n");
830 #ifdef RTE_LIBRTE_IVSHMEM
831 if (rte_eal_ivshmem_init() < 0)
832 rte_panic("Cannot init IVSHMEM\n");
835 if (rte_eal_memory_init() < 0)
836 rte_panic("Cannot init memory\n");
838 /* the directories are locked during eal_hugepage_info_init */
839 eal_hugedirs_unlock();
841 if (rte_eal_memzone_init() < 0)
842 rte_panic("Cannot init memzone\n");
844 if (rte_eal_tailqs_init() < 0)
845 rte_panic("Cannot init tail queues for objects\n");
847 #ifdef RTE_LIBRTE_IVSHMEM
848 if (rte_eal_ivshmem_obj_init() < 0)
849 rte_panic("Cannot init IVSHMEM objects\n");
852 if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
853 rte_panic("Cannot init logs\n");
855 if (rte_eal_alarm_init() < 0)
856 rte_panic("Cannot init interrupt-handling thread\n");
858 if (rte_eal_intr_init() < 0)
859 rte_panic("Cannot init interrupt-handling thread\n");
861 if (rte_eal_timer_init() < 0)
862 rte_panic("Cannot init HPET or TSC timers\n");
864 eal_check_mem_on_local_socket();
866 rte_eal_mcfg_complete();
868 TAILQ_FOREACH(solib, &solib_list, next) {
869 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
870 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
871 if (solib->lib_handle == NULL)
872 RTE_LOG(WARNING, EAL, "%s\n", dlerror());
875 eal_thread_init_master(rte_config.master_lcore);
877 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
878 rte_config.master_lcore, (int)thread_id);
880 if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
881 rte_panic("Cannot init pmd devices\n");
883 RTE_LCORE_FOREACH_SLAVE(i) {
886 * create communication pipes between master thread
889 if (pipe(lcore_config[i].pipe_master2slave) < 0)
890 rte_panic("Cannot create pipe\n");
891 if (pipe(lcore_config[i].pipe_slave2master) < 0)
892 rte_panic("Cannot create pipe\n");
894 lcore_config[i].state = WAIT;
896 /* create a thread for each lcore */
897 ret = pthread_create(&lcore_config[i].thread_id, NULL,
898 eal_thread_loop, NULL);
900 rte_panic("Cannot create thread\n");
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);
934 int rte_eal_has_hugepages(void)
936 return ! internal_config.no_hugetlbfs;