4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2012-2014 6WIND S.A.
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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
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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"
102 #define OPT_VFIO_INTR "vfio-intr"
104 #define RTE_EAL_BLACKLIST_SIZE 0x100
106 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
108 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
110 #define HIGHEST_RPL 3
112 #define BITS_PER_HEX 4
114 /* Allow the application to print its usage message too if set */
115 static rte_usage_hook_t rte_application_usage_hook = NULL;
117 TAILQ_HEAD(shared_driver_list, shared_driver);
119 /* Definition for shared object drivers. */
120 struct shared_driver {
121 TAILQ_ENTRY(shared_driver) next;
127 /* List of external loadable drivers */
128 static struct shared_driver_list solib_list =
129 TAILQ_HEAD_INITIALIZER(solib_list);
131 /* early configuration structure, when memory config is not mmapped */
132 static struct rte_mem_config early_mem_config;
134 /* define fd variable here, because file needs to be kept open for the
135 * duration of the program, as we hold a write lock on it in the primary proc */
136 static int mem_cfg_fd = -1;
138 static struct flock wr_lock = {
140 .l_whence = SEEK_SET,
141 .l_start = offsetof(struct rte_mem_config, memseg),
142 .l_len = sizeof(early_mem_config.memseg),
145 /* Address of global and public configuration */
146 static struct rte_config rte_config = {
147 .mem_config = &early_mem_config,
150 /* internal configuration (per-core) */
151 struct lcore_config lcore_config[RTE_MAX_LCORE];
153 /* internal configuration */
154 struct internal_config internal_config;
156 /* used by rte_rdtsc() */
157 int rte_cycles_vmware_tsc_map;
159 /* Return a pointer to the configuration structure */
161 rte_eal_get_configuration(void)
166 /* parse a sysfs (or other) file containing one integer value */
168 eal_parse_sysfs_value(const char *filename, unsigned long *val)
174 if ((f = fopen(filename, "r")) == NULL) {
175 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
180 if (fgets(buf, sizeof(buf), f) == NULL) {
181 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
186 *val = strtoul(buf, &end, 0);
187 if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
188 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
198 /* create memory configuration in shared/mmap memory. Take out
199 * a write lock on the memsegs, so we can auto-detect primary/secondary.
200 * This means we never close the file while running (auto-close on exit).
201 * We also don't lock the whole file, so that in future we can use read-locks
202 * on other parts, e.g. memzones, to detect if there are running secondary
205 rte_eal_config_create(void)
207 void *rte_mem_cfg_addr;
210 const char *pathname = eal_runtime_config_path();
212 if (internal_config.no_shconf)
216 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
218 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
221 retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
224 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
227 retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
230 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
231 "process running?\n", pathname);
234 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
235 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
237 if (rte_mem_cfg_addr == MAP_FAILED){
238 rte_panic("Cannot mmap memory for rte_config\n");
240 memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
241 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
244 /* attach to an existing shared memory config */
246 rte_eal_config_attach(void)
248 void *rte_mem_cfg_addr;
249 const char *pathname = eal_runtime_config_path();
251 if (internal_config.no_shconf)
255 mem_cfg_fd = open(pathname, O_RDWR);
257 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
260 rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
261 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
263 if (rte_mem_cfg_addr == MAP_FAILED)
264 rte_panic("Cannot mmap memory for rte_config\n");
266 rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
269 /* Detect if we are a primary or a secondary process */
270 static enum rte_proc_type_t
271 eal_proc_type_detect(void)
273 enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
274 const char *pathname = eal_runtime_config_path();
276 /* if we can open the file but not get a write-lock we are a secondary
277 * process. NOTE: if we get a file handle back, we keep that open
278 * and don't close it to prevent a race condition between multiple opens */
279 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
280 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
281 ptype = RTE_PROC_SECONDARY;
283 RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
284 ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
289 /* Sets up rte_config structure with the pointer to shared memory config.*/
291 rte_config_init(void)
293 rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
294 eal_proc_type_detect() : /* for auto, detect the type */
295 internal_config.process_type; /* otherwise use what's already set */
297 switch (rte_config.process_type){
298 case RTE_PROC_PRIMARY:
299 rte_eal_config_create();
301 case RTE_PROC_SECONDARY:
302 rte_eal_config_attach();
303 rte_eal_mcfg_wait_complete(rte_config.mem_config);
306 case RTE_PROC_INVALID:
307 rte_panic("Invalid process type\n");
311 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
313 eal_hugedirs_unlock(void)
317 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
319 /* skip uninitialized */
320 if (internal_config.hugepage_info[i].lock_descriptor < 0)
322 /* unlock hugepage file */
323 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
324 close(internal_config.hugepage_info[i].lock_descriptor);
325 /* reset the field */
326 internal_config.hugepage_info[i].lock_descriptor = -1;
332 eal_usage(const char *prgname)
334 printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
335 "[--proc-type primary|secondary|auto] \n\n"
337 " -c COREMASK : A hexadecimal bitmask of cores to run on\n"
338 " -n NUM : Number of memory channels\n"
339 " -v : Display version information on startup\n"
340 " -d LIB.so : add driver (can be used multiple times)\n"
341 " -m MB : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
342 " -r NUM : force number of memory ranks (don't detect)\n"
343 " --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
344 "without hugetlbfs\n"
345 " --"OPT_SYSLOG" : set syslog facility\n"
346 " --"OPT_SOCKET_MEM" : memory to allocate on specific \n"
347 " sockets (use comma separated values)\n"
348 " --"OPT_HUGE_DIR" : directory where hugetlbfs is mounted\n"
349 " --"OPT_PROC_TYPE" : type of this process\n"
350 " --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
351 " --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
352 " Prevent EAL from using this PCI device. The argument\n"
353 " format is <domain:bus:devid.func>.\n"
354 " --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
355 " Only use the specified PCI devices. The argument format\n"
356 " is <[domain:]bus:devid.func>. This option can be present\n"
357 " several times (once per device).\n"
358 " [NOTE: PCI whitelist cannot be used with -b option]\n"
359 " --"OPT_VDEV": add a virtual device.\n"
360 " The argument format is <driver><id>[,key=val,...]\n"
361 " (ex: --vdev=eth_pcap0,iface=eth2).\n"
362 " --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
363 " --"OPT_BASE_VIRTADDR": specify base virtual address\n"
364 " --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
365 "(legacy|msi|msix)\n"
366 " --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
367 "\nEAL options for DEBUG use only:\n"
368 " --"OPT_NO_HUGE" : use malloc instead of hugetlbfs\n"
369 " --"OPT_NO_PCI" : disable pci\n"
370 " --"OPT_NO_HPET" : disable hpet\n"
371 " --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
374 /* Allow the application to print its usage message too if hook is set */
375 if ( rte_application_usage_hook ) {
376 printf("===== Application Usage =====\n\n");
377 rte_application_usage_hook(prgname);
381 /* Set a per-application usage message */
383 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
385 rte_usage_hook_t old_func;
387 /* Will be NULL on the first call to denote the last usage routine. */
388 old_func = rte_application_usage_hook;
389 rte_application_usage_hook = usage_func;
395 * Parse the coremask given as argument (hexadecimal string) and fill
396 * the global configuration (core role and core count) with the parsed
399 static int xdigit2val(unsigned char c)
411 eal_parse_coremask(const char *coremask)
413 struct rte_config *cfg = rte_eal_get_configuration();
419 if (coremask == NULL)
421 /* Remove all blank characters ahead and after .
422 * Remove 0x/0X if exists.
424 while (isblank(*coremask))
426 if (coremask[0] == '0' && ((coremask[1] == 'x')
427 || (coremask[1] == 'X')) )
429 i = strnlen(coremask, PATH_MAX);
430 while ((i > 0) && isblank(coremask[i - 1]))
435 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
437 if (isxdigit(c) == 0) {
438 /* invalid characters */
442 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
444 if (!lcore_config[idx].detected) {
445 RTE_LOG(ERR, EAL, "lcore %u "
446 "unavailable\n", idx);
449 cfg->lcore_role[idx] = ROLE_RTE;
451 cfg->master_lcore = idx;
454 cfg->lcore_role[idx] = ROLE_OFF;
459 if(coremask[i] != '0')
461 for(; idx < RTE_MAX_LCORE; idx++)
462 cfg->lcore_role[idx] = ROLE_OFF;
465 /* Update the count of enabled logical cores of the EAL configuration */
466 cfg->lcore_count = count;
471 eal_parse_syslog(const char *facility)
478 { "auth", LOG_AUTH },
479 { "cron", LOG_CRON },
480 { "daemon", LOG_DAEMON },
482 { "kern", LOG_KERN },
484 { "mail", LOG_MAIL },
485 { "news", LOG_NEWS },
486 { "syslog", LOG_SYSLOG },
487 { "user", LOG_USER },
488 { "uucp", LOG_UUCP },
489 { "local0", LOG_LOCAL0 },
490 { "local1", LOG_LOCAL1 },
491 { "local2", LOG_LOCAL2 },
492 { "local3", LOG_LOCAL3 },
493 { "local4", LOG_LOCAL4 },
494 { "local5", LOG_LOCAL5 },
495 { "local6", LOG_LOCAL6 },
496 { "local7", LOG_LOCAL7 },
500 for (i = 0; map[i].name; i++) {
501 if (!strcmp(facility, map[i].name)) {
502 internal_config.syslog_facility = map[i].value;
510 eal_parse_socket_mem(char *socket_mem)
512 char * arg[RTE_MAX_NUMA_NODES];
515 uint64_t total_mem = 0;
517 len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
518 if (len == SOCKET_MEM_STRLEN) {
519 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
523 /* all other error cases will be caught later */
524 if (!isdigit(socket_mem[len-1]))
527 /* split the optarg into separate socket values */
528 arg_num = rte_strsplit(socket_mem, len,
529 arg, RTE_MAX_NUMA_NODES, ',');
531 /* if split failed, or 0 arguments */
535 internal_config.force_sockets = 1;
537 /* parse each defined socket option */
539 for (i = 0; i < arg_num; i++) {
541 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
543 /* check for invalid input */
545 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
547 internal_config.socket_mem[i] *= 1024ULL;
548 internal_config.socket_mem[i] *= 1024ULL;
549 total_mem += internal_config.socket_mem[i];
552 /* check if we have a positive amount of total memory */
560 eal_parse_base_virtaddr(const char *arg)
565 addr = strtoull(arg, &end, 16);
567 /* check for errors */
568 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
571 /* make sure we don't exceed 32-bit boundary on 32-bit target */
572 #ifndef RTE_ARCH_X86_64
573 if (addr >= UINTPTR_MAX)
577 /* align the addr on 2M boundary */
578 internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
585 eal_parse_vfio_intr(const char *mode)
590 enum rte_intr_mode value;
592 { "legacy", RTE_INTR_MODE_LEGACY },
593 { "msi", RTE_INTR_MODE_MSI },
594 { "msix", RTE_INTR_MODE_MSIX },
597 for (i = 0; i < RTE_DIM(map); i++) {
598 if (!strcmp(mode, map[i].name)) {
599 internal_config.vfio_intr_mode = map[i].value;
607 eal_get_hugepage_mem_size(void)
612 for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
613 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
614 if (hpi->hugedir != NULL) {
615 for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
616 size += hpi->hugepage_sz * hpi->num_pages[j];
621 return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
624 static enum rte_proc_type_t
625 eal_parse_proc_type(const char *arg)
627 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
628 return RTE_PROC_PRIMARY;
629 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
630 return RTE_PROC_SECONDARY;
631 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
632 return RTE_PROC_AUTO;
634 return RTE_PROC_INVALID;
637 /* Parse the argument given in the command line of the application */
639 eal_parse_args(int argc, char **argv)
645 char *prgname = argv[0];
646 static struct option lgopts[] = {
647 {OPT_NO_HUGE, 0, 0, 0},
648 {OPT_NO_PCI, 0, 0, 0},
649 {OPT_NO_HPET, 0, 0, 0},
650 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
651 {OPT_HUGE_DIR, 1, 0, 0},
652 {OPT_NO_SHCONF, 0, 0, 0},
653 {OPT_PROC_TYPE, 1, 0, 0},
654 {OPT_FILE_PREFIX, 1, 0, 0},
655 {OPT_SOCKET_MEM, 1, 0, 0},
656 {OPT_PCI_WHITELIST, 1, 0, 0},
657 {OPT_PCI_BLACKLIST, 1, 0, 0},
659 {OPT_SYSLOG, 1, NULL, 0},
660 {OPT_VFIO_INTR, 1, NULL, 0},
661 {OPT_BASE_VIRTADDR, 1, 0, 0},
662 {OPT_XEN_DOM0, 0, 0, 0},
663 {OPT_CREATE_UIO_DEV, 1, NULL, 0},
666 struct shared_driver *solib;
670 internal_config.memory = 0;
671 internal_config.force_nrank = 0;
672 internal_config.force_nchannel = 0;
673 internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
674 internal_config.hugepage_dir = NULL;
675 internal_config.force_sockets = 0;
676 internal_config.syslog_facility = LOG_DAEMON;
677 internal_config.xen_dom0_support = 0;
678 /* if set to NONE, interrupt mode is determined automatically */
679 internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
680 #ifdef RTE_LIBEAL_USE_HPET
681 internal_config.no_hpet = 0;
683 internal_config.no_hpet = 1;
685 /* zero out the NUMA config */
686 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
687 internal_config.socket_mem[i] = 0;
689 /* zero out hugedir descriptors */
690 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
691 internal_config.hugepage_info[i].lock_descriptor = -1;
693 internal_config.vmware_tsc_map = 0;
694 internal_config.base_virtaddr = 0;
696 while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
697 lgopts, &option_index)) != EOF) {
702 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
710 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
718 if (eal_parse_coremask(optarg) < 0) {
719 RTE_LOG(ERR, EAL, "invalid coremask\n");
725 /* force loading of external driver */
727 solib = malloc(sizeof(*solib));
729 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
732 memset(solib, 0, sizeof(*solib));
733 strncpy(solib->name, optarg, PATH_MAX-1);
734 solib->name[PATH_MAX-1] = 0;
735 TAILQ_INSERT_TAIL(&solib_list, solib, next);
739 internal_config.memory = atoi(optarg);
740 internal_config.memory *= 1024ULL;
741 internal_config.memory *= 1024ULL;
743 /* force number of channels */
745 internal_config.force_nchannel = atoi(optarg);
746 if (internal_config.force_nchannel == 0 ||
747 internal_config.force_nchannel > 4) {
748 RTE_LOG(ERR, EAL, "invalid channel number\n");
753 /* force number of ranks */
755 internal_config.force_nrank = atoi(optarg);
756 if (internal_config.force_nrank == 0 ||
757 internal_config.force_nrank > 16) {
758 RTE_LOG(ERR, EAL, "invalid rank number\n");
764 /* since message is explicitly requested by user, we
765 * write message at highest log level so it can always be seen
766 * even if info or warning messages are disabled */
767 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
772 if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
773 internal_config.no_hugetlbfs = 1;
775 if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
776 #ifdef RTE_LIBRTE_XEN_DOM0
777 internal_config.xen_dom0_support = 1;
779 RTE_LOG(ERR, EAL, "Can't support DPDK app "
780 "running on Dom0, please configure"
781 " RTE_LIBRTE_XEN_DOM0=y\n");
785 else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
786 internal_config.no_pci = 1;
788 else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
789 internal_config.no_hpet = 1;
791 else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
792 internal_config.vmware_tsc_map = 1;
794 else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
795 internal_config.no_shconf = 1;
797 else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
798 internal_config.hugepage_dir = optarg;
800 else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
801 internal_config.process_type = eal_parse_proc_type(optarg);
803 else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
804 internal_config.hugefile_prefix = optarg;
806 else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
807 if (eal_parse_socket_mem(optarg) < 0) {
808 RTE_LOG(ERR, EAL, "invalid parameters for --"
809 OPT_SOCKET_MEM "\n");
814 else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
815 printf("The --use-device option is deprecated, please use\n"
816 "--whitelist or --vdev instead.\n");
820 else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
821 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
827 else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
828 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
834 else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
835 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
841 else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
842 if (eal_parse_syslog(optarg) < 0) {
843 RTE_LOG(ERR, EAL, "invalid parameters for --"
849 else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
850 if (eal_parse_base_virtaddr(optarg) < 0) {
851 RTE_LOG(ERR, EAL, "invalid parameter for --"
852 OPT_BASE_VIRTADDR "\n");
857 else if (!strcmp(lgopts[option_index].name, OPT_VFIO_INTR)) {
858 if (eal_parse_vfio_intr(optarg) < 0) {
859 RTE_LOG(ERR, EAL, "invalid parameters for --"
865 else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
866 internal_config.create_uio_dev = 1;
878 RTE_LOG(ERR, EAL, "coremask not specified\n");
882 if (internal_config.process_type == RTE_PROC_AUTO){
883 internal_config.process_type = eal_proc_type_detect();
885 if (internal_config.process_type == RTE_PROC_INVALID){
886 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
890 if (internal_config.process_type == RTE_PROC_PRIMARY &&
891 internal_config.force_nchannel == 0) {
892 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
896 if (index(internal_config.hugefile_prefix,'%') != NULL){
897 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
901 if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
902 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
903 "at the same time\n");
907 /* --no-huge doesn't make sense with either -m or --socket-mem */
908 if (internal_config.no_hugetlbfs &&
909 (internal_config.memory > 0 ||
910 internal_config.force_sockets == 1)) {
911 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
912 "together with --no-huge!\n");
916 /* --xen-dom0 doesn't make sense with --socket-mem */
917 if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
918 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
919 "together with --xen_dom0!\n");
924 if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
925 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
926 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
927 "[-w] options cannot be used at the same time\n");
933 argv[optind-1] = prgname;
935 /* if no memory amounts were requested, this will result in 0 and
936 * will be overriden later, right after eal_hugepage_info_init() */
937 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
938 internal_config.memory += internal_config.socket_mem[i];
941 optind = 0; /* reset getopt lib */
946 eal_check_mem_on_local_socket(void)
948 const struct rte_memseg *ms;
951 socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
953 ms = rte_eal_get_physmem_layout();
955 for (i = 0; i < RTE_MAX_MEMSEG; i++)
956 if (ms[i].socket_id == socket_id &&
960 RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
961 "memory on local socket!\n");
965 sync_func(__attribute__((unused)) void *arg)
971 rte_eal_mcfg_complete(void)
973 /* ALL shared mem_config related INIT DONE */
974 if (rte_config.process_type == RTE_PROC_PRIMARY)
975 rte_config.mem_config->magic = RTE_MAGIC;
979 * Request iopl privilege for all RPL, returns 0 on success
982 rte_eal_iopl_init(void)
984 return iopl(HIGHEST_RPL);
987 /* Launch threads, called at application init(). */
989 rte_eal_init(int argc, char **argv)
993 static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
994 struct shared_driver *solib = NULL;
997 if (!rte_atomic32_test_and_set(&run_once))
1000 logid = strrchr(argv[0], '/');
1001 logid = strdup(logid ? logid + 1: argv[0]);
1003 thread_id = pthread_self();
1005 if (rte_eal_log_early_init() < 0)
1006 rte_panic("Cannot init early logs\n");
1008 if (rte_eal_cpu_init() < 0)
1009 rte_panic("Cannot detect lcores\n");
1011 fctret = eal_parse_args(argc, argv);
1015 if (internal_config.no_hugetlbfs == 0 &&
1016 internal_config.process_type != RTE_PROC_SECONDARY &&
1017 internal_config.xen_dom0_support == 0 &&
1018 eal_hugepage_info_init() < 0)
1019 rte_panic("Cannot get hugepage information\n");
1021 if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
1022 if (internal_config.no_hugetlbfs)
1023 internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
1025 internal_config.memory = eal_get_hugepage_mem_size();
1028 if (internal_config.vmware_tsc_map == 1) {
1029 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
1030 rte_cycles_vmware_tsc_map = 1;
1031 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
1032 "you must have monitor_control.pseudo_perfctr = TRUE\n");
1034 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
1035 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
1039 rte_srand(rte_rdtsc());
1043 if (rte_eal_iopl_init() == 0)
1044 rte_config.flags |= EAL_FLG_HIGH_IOPL;
1046 if (rte_eal_pci_init() < 0)
1047 rte_panic("Cannot init PCI\n");
1049 #ifdef RTE_LIBRTE_IVSHMEM
1050 if (rte_eal_ivshmem_init() < 0)
1051 rte_panic("Cannot init IVSHMEM\n");
1054 if (rte_eal_memory_init() < 0)
1055 rte_panic("Cannot init memory\n");
1057 /* the directories are locked during eal_hugepage_info_init */
1058 eal_hugedirs_unlock();
1060 if (rte_eal_memzone_init() < 0)
1061 rte_panic("Cannot init memzone\n");
1063 if (rte_eal_tailqs_init() < 0)
1064 rte_panic("Cannot init tail queues for objects\n");
1066 #ifdef RTE_LIBRTE_IVSHMEM
1067 if (rte_eal_ivshmem_obj_init() < 0)
1068 rte_panic("Cannot init IVSHMEM objects\n");
1071 if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
1072 rte_panic("Cannot init logs\n");
1074 if (rte_eal_alarm_init() < 0)
1075 rte_panic("Cannot init interrupt-handling thread\n");
1077 if (rte_eal_intr_init() < 0)
1078 rte_panic("Cannot init interrupt-handling thread\n");
1080 if (rte_eal_timer_init() < 0)
1081 rte_panic("Cannot init HPET or TSC timers\n");
1083 eal_check_mem_on_local_socket();
1085 rte_eal_mcfg_complete();
1087 TAILQ_FOREACH(solib, &solib_list, next) {
1088 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
1089 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
1090 if (solib->lib_handle == NULL)
1091 RTE_LOG(WARNING, EAL, "%s\n", dlerror());
1094 eal_thread_init_master(rte_config.master_lcore);
1096 RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
1097 rte_config.master_lcore, (int)thread_id);
1099 if (rte_eal_dev_init() < 0)
1100 rte_panic("Cannot init pmd devices\n");
1102 RTE_LCORE_FOREACH_SLAVE(i) {
1105 * create communication pipes between master thread
1108 if (pipe(lcore_config[i].pipe_master2slave) < 0)
1109 rte_panic("Cannot create pipe\n");
1110 if (pipe(lcore_config[i].pipe_slave2master) < 0)
1111 rte_panic("Cannot create pipe\n");
1113 lcore_config[i].state = WAIT;
1115 /* create a thread for each lcore */
1116 ret = pthread_create(&lcore_config[i].thread_id, NULL,
1117 eal_thread_loop, NULL);
1119 rte_panic("Cannot create thread\n");
1123 * Launch a dummy function on all slave lcores, so that master lcore
1124 * knows they are all ready when this function returns.
1126 rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
1127 rte_eal_mp_wait_lcore();
1133 enum rte_lcore_role_t
1134 rte_eal_lcore_role(unsigned lcore_id)
1136 return (rte_config.lcore_role[lcore_id]);
1139 enum rte_proc_type_t
1140 rte_eal_process_type(void)
1142 return (rte_config.process_type);
1145 int rte_eal_has_hugepages(void)
1147 return ! internal_config.no_hugetlbfs;