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
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30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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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"
85 #define OPT_HUGE_DIR "huge-dir"
86 #define OPT_PROC_TYPE "proc-type"
87 #define OPT_NO_SHCONF "no-shconf"
88 #define OPT_NO_HPET "no-hpet"
89 #define OPT_VMWARE_TSC_MAP "vmware-tsc-map"
90 #define OPT_NO_PCI "no-pci"
91 #define OPT_NO_HUGE "no-huge"
92 #define OPT_FILE_PREFIX "file-prefix"
93 #define OPT_SOCKET_MEM "socket-mem"
94 #define OPT_USE_DEVICE "use-device"
95 #define OPT_PCI_WHITELIST "pci-whitelist"
96 #define OPT_PCI_BLACKLIST "pci-blacklist"
97 #define OPT_VDEV "vdev"
98 #define OPT_SYSLOG "syslog"
99 #define OPT_BASE_VIRTADDR "base-virtaddr"
100 #define OPT_XEN_DOM0 "xen-dom0"
101 #define OPT_CREATE_UIO_DEV "create-uio-dev"
103 #define RTE_EAL_BLACKLIST_SIZE 0x100
105 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
107 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
109 #define HIGHEST_RPL 3
111 #define BITS_PER_HEX 4
113 /* Allow the application to print its usage message too if set */
114 static rte_usage_hook_t rte_application_usage_hook = NULL;
116 TAILQ_HEAD(shared_driver_list, shared_driver);
118 /* Definition for shared object drivers. */
119 struct shared_driver {
120 TAILQ_ENTRY(shared_driver) next;
126 /* List of external loadable drivers */
127 static struct shared_driver_list solib_list =
128 TAILQ_HEAD_INITIALIZER(solib_list);
130 /* early configuration structure, when memory config is not mmapped */
131 static struct rte_mem_config early_mem_config;
133 /* define fd variable here, because file needs to be kept open for the
134 * duration of the program, as we hold a write lock on it in the primary proc */
135 static int mem_cfg_fd = -1;
137 static struct flock wr_lock = {
139 .l_whence = SEEK_SET,
140 .l_start = offsetof(struct rte_mem_config, memseg),
141 .l_len = sizeof(early_mem_config.memseg),
144 /* Address of global and public configuration */
145 static struct rte_config rte_config = {
146 .mem_config = &early_mem_config,
149 /* internal configuration (per-core) */
150 struct lcore_config lcore_config[RTE_MAX_LCORE];
152 /* internal configuration */
153 struct internal_config internal_config;
155 /* used by rte_rdtsc() */
156 int rte_cycles_vmware_tsc_map;
158 /* Return a pointer to the configuration structure */
160 rte_eal_get_configuration(void)
165 /* parse a sysfs (or other) file containing one integer value */
167 eal_parse_sysfs_value(const char *filename, unsigned long *val)
173 if ((f = fopen(filename, "r")) == NULL) {
174 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
179 if (fgets(buf, sizeof(buf), f) == NULL) {
180 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
185 *val = strtoul(buf, &end, 0);
186 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
187 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
197 /* create memory configuration in shared/mmap memory. Take out
198 * a write lock on the memsegs, so we can auto-detect primary/secondary.
199 * This means we never close the file while running (auto-close on exit).
200 * We also don't lock the whole file, so that in future we can use read-locks
201 * on other parts, e.g. memzones, to detect if there are running secondary
204 rte_eal_config_create(void)
206 void *rte_mem_cfg_addr;
209 const char *pathname = eal_runtime_config_path();
211 if (internal_config.no_shconf)
215 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
217 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
220 retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
223 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
226 retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
229 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
230 "process running?\n", pathname);
233 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
234 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
236 if (rte_mem_cfg_addr == MAP_FAILED){
237 rte_panic("Cannot mmap memory for rte_config\n");
239 memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
240 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
243 /* attach to an existing shared memory config */
245 rte_eal_config_attach(void)
247 void *rte_mem_cfg_addr;
248 const char *pathname = eal_runtime_config_path();
250 if (internal_config.no_shconf)
254 mem_cfg_fd = open(pathname, O_RDWR);
256 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
259 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
260 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
262 if (rte_mem_cfg_addr == MAP_FAILED)
263 rte_panic("Cannot mmap memory for rte_config\n");
265 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
268 /* Detect if we are a primary or a secondary process */
269 static enum rte_proc_type_t
270 eal_proc_type_detect(void)
272 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
273 const char *pathname = eal_runtime_config_path();
275 /* if we can open the file but not get a write-lock we are a secondary
276 * process. NOTE: if we get a file handle back, we keep that open
277 * and don't close it to prevent a race condition between multiple opens */
278 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
279 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
280 ptype = RTE_PROC_SECONDARY;
282 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
283 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
288 /* Sets up rte_config structure with the pointer to shared memory config.*/
290 rte_config_init(void)
292 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
293 eal_proc_type_detect() : /* for auto, detect the type */
294 internal_config.process_type; /* otherwise use what's already set */
296 switch (rte_config.process_type){
297 case RTE_PROC_PRIMARY:
298 rte_eal_config_create();
300 case RTE_PROC_SECONDARY:
301 rte_eal_config_attach();
302 rte_eal_mcfg_wait_complete(rte_config.mem_config);
305 case RTE_PROC_INVALID:
306 rte_panic("Invalid process type\n");
310 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
312 eal_hugedirs_unlock(void)
316 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
318 /* skip uninitialized */
319 if (internal_config.hugepage_info[i].lock_descriptor < 0)
321 /* unlock hugepage file */
322 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
323 close(internal_config.hugepage_info[i].lock_descriptor);
324 /* reset the field */
325 internal_config.hugepage_info[i].lock_descriptor = -1;
331 eal_usage(const char *prgname)
333 printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
334 "[--proc-type primary|secondary|auto] \n\n"
336 " -c COREMASK : A hexadecimal bitmask of cores to run on\n"
337 " -n NUM : Number of memory channels\n"
338 " -v : Display version information on startup\n"
339 " -d LIB.so : add driver (can be used multiple times)\n"
340 " -m MB : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
341 " -r NUM : force number of memory ranks (don't detect)\n"
342 " --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
343 "without hugetlbfs\n"
344 " --"OPT_SYSLOG" : set syslog facility\n"
345 " --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
346 " sockets (use comma separated values)\n"
347 " --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
348 " --"OPT_PROC_TYPE" : type of this process\n"
349 " --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
350 " --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
351 " Prevent EAL from using this PCI device. The argument\n"
352 " format is <domain:bus:devid.func>.\n"
353 " --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
354 " Only use the specified PCI devices. The argument format\n"
355 " is <[domain:]bus:devid.func>. This option can be present\n"
356 " several times (once per device).\n"
357 " [NOTE: PCI whitelist cannot be used with -b option]\n"
358 " --"OPT_VDEV": add a virtual device.\n"
359 " The argument format is <driver><id>[,key=val,...]\n"
360 " (ex: --vdev=eth_pcap0,iface=eth2).\n"
361 " --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
362 " --"OPT_BASE_VIRTADDR": specify base virtual address\n"
363 " --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
364 "\nEAL options for DEBUG use only:\n"
365 " --"OPT_NO_HUGE" : use malloc instead of hugetlbfs\n"
366 " --"OPT_NO_PCI" : disable pci\n"
367 " --"OPT_NO_HPET" : disable hpet\n"
368 " --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
371 /* Allow the application to print its usage message too if hook is set */
372 if ( rte_application_usage_hook ) {
373 printf("===== Application Usage =====\n\n");
374 rte_application_usage_hook(prgname);
378 /* Set a per-application usage message */
380 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
382 rte_usage_hook_t old_func;
384 /* Will be NULL on the first call to denote the last usage routine. */
385 old_func = rte_application_usage_hook;
386 rte_application_usage_hook = usage_func;
392 * Parse the coremask given as argument (hexadecimal string) and fill
393 * the global configuration (core role and core count) with the parsed
396 static int xdigit2val(unsigned char c)
408 eal_parse_coremask(const char *coremask)
410 struct rte_config *cfg = rte_eal_get_configuration();
416 if (coremask == NULL)
418 /* Remove all blank characters ahead and after .
419 * Remove 0x/0X if exists.
421 while (isblank(*coremask))
423 if (coremask[0] == '0' && ((coremask[1] == 'x')
424 || (coremask[1] == 'X')) )
426 i = strnlen(coremask, PATH_MAX);
427 while ((i > 0) && isblank(coremask[i - 1]))
432 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
434 if (isxdigit(c) == 0) {
435 /* invalid characters */
439 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
441 if (!lcore_config[idx].detected) {
442 RTE_LOG(ERR, EAL, "lcore %u "
443 "unavailable\n", idx);
446 cfg->lcore_role[idx] = ROLE_RTE;
448 cfg->master_lcore = idx;
451 cfg->lcore_role[idx] = ROLE_OFF;
456 if(coremask[i] != '0')
458 for(; idx < RTE_MAX_LCORE; idx++)
459 cfg->lcore_role[idx] = ROLE_OFF;
462 /* Update the count of enabled logical cores of the EAL configuration */
463 cfg->lcore_count = count;
468 eal_parse_syslog(const char *facility)
475 { "auth", LOG_AUTH },
476 { "cron", LOG_CRON },
477 { "daemon", LOG_DAEMON },
479 { "kern", LOG_KERN },
481 { "mail", LOG_MAIL },
482 { "news", LOG_NEWS },
483 { "syslog", LOG_SYSLOG },
484 { "user", LOG_USER },
485 { "uucp", LOG_UUCP },
486 { "local0", LOG_LOCAL0 },
487 { "local1", LOG_LOCAL1 },
488 { "local2", LOG_LOCAL2 },
489 { "local3", LOG_LOCAL3 },
490 { "local4", LOG_LOCAL4 },
491 { "local5", LOG_LOCAL5 },
492 { "local6", LOG_LOCAL6 },
493 { "local7", LOG_LOCAL7 },
497 for (i = 0; map[i].name; i++) {
498 if (!strcmp(facility, map[i].name)) {
499 internal_config.syslog_facility = map[i].value;
507 eal_parse_socket_mem(char *socket_mem)
509 char * arg[RTE_MAX_NUMA_NODES];
512 uint64_t total_mem = 0;
514 len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
515 if (len == SOCKET_MEM_STRLEN) {
516 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
520 /* all other error cases will be caught later */
521 if (!isdigit(socket_mem[len-1]))
524 /* split the optarg into separate socket values */
525 arg_num = rte_strsplit(socket_mem, len,
526 arg, RTE_MAX_NUMA_NODES, ',');
528 /* if split failed, or 0 arguments */
532 internal_config.force_sockets = 1;
534 /* parse each defined socket option */
536 for (i = 0; i < arg_num; i++) {
538 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
540 /* check for invalid input */
542 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
544 internal_config.socket_mem[i] *= 1024ULL;
545 internal_config.socket_mem[i] *= 1024ULL;
546 total_mem += internal_config.socket_mem[i];
549 /* check if we have a positive amount of total memory */
557 eal_parse_base_virtaddr(const char *arg)
562 addr = strtoull(arg, &end, 16);
564 /* check for errors */
565 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
568 /* make sure we don't exceed 32-bit boundary on 32-bit target */
569 #ifndef RTE_ARCH_X86_64
570 if (addr >= UINTPTR_MAX)
574 /* align the addr on 2M boundary */
575 internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
582 eal_get_hugepage_mem_size(void)
587 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
588 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
589 if (hpi->hugedir != NULL) {
590 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
591 size += hpi->hugepage_sz * hpi->num_pages[j];
596 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
599 static enum rte_proc_type_t
600 eal_parse_proc_type(const char *arg)
602 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
603 return RTE_PROC_PRIMARY;
604 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
605 return RTE_PROC_SECONDARY;
606 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
607 return RTE_PROC_AUTO;
609 return RTE_PROC_INVALID;
612 /* Parse the argument given in the command line of the application */
614 eal_parse_args(int argc, char **argv)
620 char *prgname = argv[0];
621 static struct option lgopts[] = {
622 {OPT_NO_HUGE, 0, 0, 0},
623 {OPT_NO_PCI, 0, 0, 0},
624 {OPT_NO_HPET, 0, 0, 0},
625 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
626 {OPT_HUGE_DIR, 1, 0, 0},
627 {OPT_NO_SHCONF, 0, 0, 0},
628 {OPT_PROC_TYPE, 1, 0, 0},
629 {OPT_FILE_PREFIX, 1, 0, 0},
630 {OPT_SOCKET_MEM, 1, 0, 0},
631 {OPT_PCI_WHITELIST, 1, 0, 0},
632 {OPT_PCI_BLACKLIST, 1, 0, 0},
634 {OPT_SYSLOG, 1, NULL, 0},
635 {OPT_BASE_VIRTADDR, 1, 0, 0},
636 {OPT_XEN_DOM0, 0, 0, 0},
637 {OPT_CREATE_UIO_DEV, 1, NULL, 0},
640 struct shared_driver *solib;
644 internal_config.memory = 0;
645 internal_config.force_nrank = 0;
646 internal_config.force_nchannel = 0;
647 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
648 internal_config.hugepage_dir = NULL;
649 internal_config.force_sockets = 0;
650 internal_config.syslog_facility = LOG_DAEMON;
651 internal_config.xen_dom0_support = 0;
652 /* if set to NONE, interrupt mode is determined automatically */
653 internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
654 #ifdef RTE_LIBEAL_USE_HPET
655 internal_config.no_hpet = 0;
657 internal_config.no_hpet = 1;
659 /* zero out the NUMA config */
660 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
661 internal_config.socket_mem[i] = 0;
663 /* zero out hugedir descriptors */
664 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
665 internal_config.hugepage_info[i].lock_descriptor = -1;
667 internal_config.vmware_tsc_map = 0;
668 internal_config.base_virtaddr = 0;
670 while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
671 lgopts, &option_index)) != EOF) {
676 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
684 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
692 if (eal_parse_coremask(optarg) < 0) {
693 RTE_LOG(ERR, EAL, "invalid coremask\n");
699 /* force loading of external driver */
701 solib = malloc(sizeof(*solib));
703 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
706 memset(solib, 0, sizeof(*solib));
707 strncpy(solib->name, optarg, PATH_MAX-1);
708 solib->name[PATH_MAX-1] = 0;
709 TAILQ_INSERT_TAIL(&solib_list, solib, next);
713 internal_config.memory = atoi(optarg);
714 internal_config.memory *= 1024ULL;
715 internal_config.memory *= 1024ULL;
717 /* force number of channels */
719 internal_config.force_nchannel = atoi(optarg);
720 if (internal_config.force_nchannel == 0 ||
721 internal_config.force_nchannel > 4) {
722 RTE_LOG(ERR, EAL, "invalid channel number\n");
727 /* force number of ranks */
729 internal_config.force_nrank = atoi(optarg);
730 if (internal_config.force_nrank == 0 ||
731 internal_config.force_nrank > 16) {
732 RTE_LOG(ERR, EAL, "invalid rank number\n");
738 /* since message is explicitly requested by user, we
739 * write message at highest log level so it can always be seen
740 * even if info or warning messages are disabled */
741 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
746 if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
747 internal_config.no_hugetlbfs = 1;
749 if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
750 #ifdef RTE_LIBRTE_XEN_DOM0
751 internal_config.xen_dom0_support = 1;
753 RTE_LOG(ERR, EAL, "Can't support DPDK app "
754 "running on Dom0, please configure"
755 " RTE_LIBRTE_XEN_DOM0=y\n");
759 else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
760 internal_config.no_pci = 1;
762 else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
763 internal_config.no_hpet = 1;
765 else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
766 internal_config.vmware_tsc_map = 1;
768 else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
769 internal_config.no_shconf = 1;
771 else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
772 internal_config.hugepage_dir = optarg;
774 else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
775 internal_config.process_type = eal_parse_proc_type(optarg);
777 else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
778 internal_config.hugefile_prefix = optarg;
780 else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
781 if (eal_parse_socket_mem(optarg) < 0) {
782 RTE_LOG(ERR, EAL, "invalid parameters for --"
783 OPT_SOCKET_MEM "\n");
788 else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
789 printf("The --use-device option is deprecated, please use\n"
790 "--whitelist or --vdev instead.\n");
794 else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
795 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
801 else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
802 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
808 else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
809 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
815 else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
816 if (eal_parse_syslog(optarg) < 0) {
817 RTE_LOG(ERR, EAL, "invalid parameters for --"
823 else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
824 if (eal_parse_base_virtaddr(optarg) < 0) {
825 RTE_LOG(ERR, EAL, "invalid parameter for --"
826 OPT_BASE_VIRTADDR "\n");
831 else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
832 internal_config.create_uio_dev = 1;
844 RTE_LOG(ERR, EAL, "coremask not specified\n");
848 if (internal_config.process_type == RTE_PROC_AUTO){
849 internal_config.process_type = eal_proc_type_detect();
851 if (internal_config.process_type == RTE_PROC_INVALID){
852 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
856 if (internal_config.process_type == RTE_PROC_PRIMARY &&
857 internal_config.force_nchannel == 0) {
858 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
862 if (index(internal_config.hugefile_prefix,'%') != NULL){
863 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
867 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
868 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
869 "at the same time\n");
873 /* --no-huge doesn't make sense with either -m or --socket-mem */
874 if (internal_config.no_hugetlbfs &&
875 (internal_config.memory > 0 ||
876 internal_config.force_sockets == 1)) {
877 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
878 "together with --no-huge!\n");
882 /* --xen-dom0 doesn't make sense with --socket-mem */
883 if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
884 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
885 "together with --xen_dom0!\n");
890 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
891 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
892 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
893 "[-w] options cannot be used at the same time\n");
899 argv[optind-1] = prgname;
901 /* if no memory amounts were requested, this will result in 0 and
902 * will be overriden later, right after eal_hugepage_info_init() */
903 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
904 internal_config.memory += internal_config.socket_mem[i];
907 optind = 0; /* reset getopt lib */
912 eal_check_mem_on_local_socket(void)
914 const struct rte_memseg *ms;
917 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
919 ms = rte_eal_get_physmem_layout();
921 for (i = 0; i < RTE_MAX_MEMSEG; i++)
922 if (ms[i].socket_id == socket_id &&
926 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
927 "memory on local socket!\n");
931 sync_func(__attribute__((unused)) void *arg)
937 rte_eal_mcfg_complete(void)
939 /* ALL shared mem_config related INIT DONE */
940 if (rte_config.process_type == RTE_PROC_PRIMARY)
941 rte_config.mem_config->magic = RTE_MAGIC;
945 * Request iopl privilege for all RPL, returns 0 on success
948 rte_eal_iopl_init(void)
950 return iopl(HIGHEST_RPL);
953 /* Launch threads, called at application init(). */
955 rte_eal_init(int argc, char **argv)
959 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
960 struct shared_driver *solib = NULL;
963 if (!rte_atomic32_test_and_set(&run_once))
966 logid = strrchr(argv[0], '/');
967 logid = strdup(logid ? logid + 1: argv[0]);
969 thread_id = pthread_self();
971 if (rte_eal_log_early_init() < 0)
972 rte_panic("Cannot init early logs\n");
974 if (rte_eal_cpu_init() < 0)
975 rte_panic("Cannot detect lcores\n");
977 fctret = eal_parse_args(argc, argv);
981 if (internal_config.no_hugetlbfs == 0 &&
982 internal_config.process_type != RTE_PROC_SECONDARY &&
983 internal_config.xen_dom0_support == 0 &&
984 eal_hugepage_info_init() < 0)
985 rte_panic("Cannot get hugepage information\n");
987 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
988 if (internal_config.no_hugetlbfs)
989 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
991 internal_config.memory = eal_get_hugepage_mem_size();
994 if (internal_config.vmware_tsc_map == 1) {
995 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
996 rte_cycles_vmware_tsc_map = 1;
997 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
998 "you must have monitor_control.pseudo_perfctr = TRUE\n");
1000 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
1001 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
1005 rte_srand(rte_rdtsc());
1009 if (rte_eal_iopl_init() == 0)
1010 rte_config.flags |= EAL_FLG_HIGH_IOPL;
1012 if (rte_eal_pci_init() < 0)
1013 rte_panic("Cannot init PCI\n");
1015 #ifdef RTE_LIBRTE_IVSHMEM
1016 if (rte_eal_ivshmem_init() < 0)
1017 rte_panic("Cannot init IVSHMEM\n");
1020 if (rte_eal_memory_init() < 0)
1021 rte_panic("Cannot init memory\n");
1023 /* the directories are locked during eal_hugepage_info_init */
1024 eal_hugedirs_unlock();
1026 if (rte_eal_memzone_init() < 0)
1027 rte_panic("Cannot init memzone\n");
1029 if (rte_eal_tailqs_init() < 0)
1030 rte_panic("Cannot init tail queues for objects\n");
1032 #ifdef RTE_LIBRTE_IVSHMEM
1033 if (rte_eal_ivshmem_obj_init() < 0)
1034 rte_panic("Cannot init IVSHMEM objects\n");
1037 if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
1038 rte_panic("Cannot init logs\n");
1040 if (rte_eal_alarm_init() < 0)
1041 rte_panic("Cannot init interrupt-handling thread\n");
1043 if (rte_eal_intr_init() < 0)
1044 rte_panic("Cannot init interrupt-handling thread\n");
1046 if (rte_eal_timer_init() < 0)
1047 rte_panic("Cannot init HPET or TSC timers\n");
1049 eal_check_mem_on_local_socket();
1051 rte_eal_mcfg_complete();
1053 TAILQ_FOREACH(solib, &solib_list, next) {
1054 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
1055 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
1056 if (solib->lib_handle == NULL)
1057 RTE_LOG(WARNING, EAL, "%s\n", dlerror());
1060 eal_thread_init_master(rte_config.master_lcore);
1062 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
1063 rte_config.master_lcore, (int)thread_id);
1065 if (rte_eal_dev_init() < 0)
1066 rte_panic("Cannot init pmd devices\n");
1068 RTE_LCORE_FOREACH_SLAVE(i) {
1071 * create communication pipes between master thread
1074 if (pipe(lcore_config[i].pipe_master2slave) < 0)
1075 rte_panic("Cannot create pipe\n");
1076 if (pipe(lcore_config[i].pipe_slave2master) < 0)
1077 rte_panic("Cannot create pipe\n");
1079 lcore_config[i].state = WAIT;
1081 /* create a thread for each lcore */
1082 ret = pthread_create(&lcore_config[i].thread_id, NULL,
1083 eal_thread_loop, NULL);
1085 rte_panic("Cannot create thread\n");
1089 * Launch a dummy function on all slave lcores, so that master lcore
1090 * knows they are all ready when this function returns.
1092 rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
1093 rte_eal_mp_wait_lcore();
1099 enum rte_lcore_role_t
1100 rte_eal_lcore_role(unsigned lcore_id)
1102 return (rte_config.lcore_role[lcore_id]);
1105 enum rte_proc_type_t
1106 rte_eal_process_type(void)
1108 return (rte_config.process_type);
1111 int rte_eal_has_hugepages(void)
1113 return ! internal_config.no_hugetlbfs;