1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2018 Intel Corporation.
3 * Copyright(c) 2014 6WIND S.A.
20 #include <sys/queue.h>
23 #include <rte_compat.h>
24 #include <rte_common.h>
25 #include <rte_debug.h>
26 #include <rte_memory.h>
27 #include <rte_launch.h>
29 #include <rte_eal_memconfig.h>
30 #include <rte_errno.h>
31 #include <rte_per_lcore.h>
32 #include <rte_lcore.h>
33 #include <rte_service_component.h>
35 #include <rte_random.h>
36 #include <rte_cycles.h>
37 #include <rte_string_fns.h>
38 #include <rte_cpuflags.h>
39 #include <rte_interrupts.h>
42 #include <rte_devargs.h>
43 #include <rte_version.h>
45 #include <rte_option.h>
46 #include <rte_atomic.h>
47 #include <malloc_heap.h>
49 #include "eal_private.h"
50 #include "eal_thread.h"
51 #include "eal_internal_cfg.h"
52 #include "eal_filesystem.h"
53 #include "eal_hugepages.h"
54 #include "eal_options.h"
56 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
58 /* Allow the application to print its usage message too if set */
59 static rte_usage_hook_t rte_application_usage_hook
= NULL
;
60 /* early configuration structure, when memory config is not mmapped */
61 static struct rte_mem_config early_mem_config
;
63 /* define fd variable here, because file needs to be kept open for the
64 * duration of the program, as we hold a write lock on it in the primary proc */
65 static int mem_cfg_fd
= -1;
67 static struct flock wr_lock
= {
70 .l_start
= offsetof(struct rte_mem_config
, memsegs
),
71 .l_len
= sizeof(early_mem_config
.memsegs
),
74 /* Address of global and public configuration */
75 static struct rte_config rte_config
= {
76 .mem_config
= &early_mem_config
,
79 /* internal configuration (per-core) */
80 struct lcore_config lcore_config
[RTE_MAX_LCORE
];
82 /* internal configuration */
83 struct internal_config internal_config
;
85 /* used by rte_rdtsc() */
86 int rte_cycles_vmware_tsc_map
;
88 /* platform-specific runtime dir */
89 static char runtime_dir
[PATH_MAX
];
91 static const char *default_runtime_dir
= "/var/run";
94 eal_create_runtime_dir(void)
96 const char *directory
= default_runtime_dir
;
97 const char *xdg_runtime_dir
= getenv("XDG_RUNTIME_DIR");
98 const char *fallback
= "/tmp";
103 /* try XDG path first, fall back to /tmp */
104 if (xdg_runtime_dir
!= NULL
)
105 directory
= xdg_runtime_dir
;
107 directory
= fallback
;
109 /* create DPDK subdirectory under runtime dir */
110 ret
= snprintf(tmp
, sizeof(tmp
), "%s/dpdk", directory
);
111 if (ret
< 0 || ret
== sizeof(tmp
)) {
112 RTE_LOG(ERR
, EAL
, "Error creating DPDK runtime path name\n");
116 /* create prefix-specific subdirectory under DPDK runtime dir */
117 ret
= snprintf(runtime_dir
, sizeof(runtime_dir
), "%s/%s",
118 tmp
, eal_get_hugefile_prefix());
119 if (ret
< 0 || ret
== sizeof(runtime_dir
)) {
120 RTE_LOG(ERR
, EAL
, "Error creating prefix-specific runtime path name\n");
124 /* create the path if it doesn't exist. no "mkdir -p" here, so do it
127 ret
= mkdir(tmp
, 0700);
128 if (ret
< 0 && errno
!= EEXIST
) {
129 RTE_LOG(ERR
, EAL
, "Error creating '%s': %s\n",
130 tmp
, strerror(errno
));
134 ret
= mkdir(runtime_dir
, 0700);
135 if (ret
< 0 && errno
!= EEXIST
) {
136 RTE_LOG(ERR
, EAL
, "Error creating '%s': %s\n",
137 runtime_dir
, strerror(errno
));
145 eal_clean_runtime_dir(void)
147 /* FreeBSD doesn't need this implemented for now, because, unlike Linux,
148 * FreeBSD doesn't create per-process files, so no need to clean up.
155 rte_eal_get_runtime_dir(void)
160 /* Return user provided mbuf pool ops name */
162 rte_eal_mbuf_user_pool_ops(void)
164 return internal_config
.user_mbuf_pool_ops_name
;
167 /* Return a pointer to the configuration structure */
169 rte_eal_get_configuration(void)
175 rte_eal_iova_mode(void)
177 return rte_eal_get_configuration()->iova_mode
;
180 /* parse a sysfs (or other) file containing one integer value */
182 eal_parse_sysfs_value(const char *filename
, unsigned long *val
)
188 if ((f
= fopen(filename
, "r")) == NULL
) {
189 RTE_LOG(ERR
, EAL
, "%s(): cannot open sysfs value %s\n",
194 if (fgets(buf
, sizeof(buf
), f
) == NULL
) {
195 RTE_LOG(ERR
, EAL
, "%s(): cannot read sysfs value %s\n",
200 *val
= strtoul(buf
, &end
, 0);
201 if ((buf
[0] == '\0') || (end
== NULL
) || (*end
!= '\n')) {
202 RTE_LOG(ERR
, EAL
, "%s(): cannot parse sysfs value %s\n",
212 /* create memory configuration in shared/mmap memory. Take out
213 * a write lock on the memsegs, so we can auto-detect primary/secondary.
214 * This means we never close the file while running (auto-close on exit).
215 * We also don't lock the whole file, so that in future we can use read-locks
216 * on other parts, e.g. memzones, to detect if there are running secondary
219 rte_eal_config_create(void)
221 void *rte_mem_cfg_addr
;
224 const char *pathname
= eal_runtime_config_path();
226 if (internal_config
.no_shconf
)
230 mem_cfg_fd
= open(pathname
, O_RDWR
| O_CREAT
, 0600);
232 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname
);
235 retval
= ftruncate(mem_cfg_fd
, sizeof(*rte_config
.mem_config
));
238 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname
);
241 retval
= fcntl(mem_cfg_fd
, F_SETLK
, &wr_lock
);
244 rte_exit(EXIT_FAILURE
, "Cannot create lock on '%s'. Is another primary "
245 "process running?\n", pathname
);
248 rte_mem_cfg_addr
= mmap(NULL
, sizeof(*rte_config
.mem_config
),
249 PROT_READ
| PROT_WRITE
, MAP_SHARED
, mem_cfg_fd
, 0);
251 if (rte_mem_cfg_addr
== MAP_FAILED
){
252 rte_panic("Cannot mmap memory for rte_config\n");
254 memcpy(rte_mem_cfg_addr
, &early_mem_config
, sizeof(early_mem_config
));
255 rte_config
.mem_config
= rte_mem_cfg_addr
;
258 /* attach to an existing shared memory config */
260 rte_eal_config_attach(void)
262 void *rte_mem_cfg_addr
;
263 const char *pathname
= eal_runtime_config_path();
265 if (internal_config
.no_shconf
)
269 mem_cfg_fd
= open(pathname
, O_RDWR
);
271 rte_panic("Cannot open '%s' for rte_mem_config\n", pathname
);
274 rte_mem_cfg_addr
= mmap(NULL
, sizeof(*rte_config
.mem_config
),
275 PROT_READ
| PROT_WRITE
, MAP_SHARED
, mem_cfg_fd
, 0);
277 if (rte_mem_cfg_addr
== MAP_FAILED
)
278 rte_panic("Cannot mmap memory for rte_config\n");
280 rte_config
.mem_config
= rte_mem_cfg_addr
;
283 /* Detect if we are a primary or a secondary process */
285 eal_proc_type_detect(void)
287 enum rte_proc_type_t ptype
= RTE_PROC_PRIMARY
;
288 const char *pathname
= eal_runtime_config_path();
290 /* if there no shared config, there can be no secondary processes */
291 if (!internal_config
.no_shconf
) {
292 /* if we can open the file but not get a write-lock we are a
293 * secondary process. NOTE: if we get a file handle back, we
294 * keep that open and don't close it to prevent a race condition
295 * between multiple opens.
297 if (((mem_cfg_fd
= open(pathname
, O_RDWR
)) >= 0) &&
298 (fcntl(mem_cfg_fd
, F_SETLK
, &wr_lock
) < 0))
299 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
;
314 switch (rte_config
.process_type
){
315 case RTE_PROC_PRIMARY
:
316 rte_eal_config_create();
318 case RTE_PROC_SECONDARY
:
319 rte_eal_config_attach();
320 rte_eal_mcfg_wait_complete(rte_config
.mem_config
);
323 case RTE_PROC_INVALID
:
324 rte_panic("Invalid process type\n");
330 eal_usage(const char *prgname
)
332 printf("\nUsage: %s ", prgname
);
334 /* Allow the application to print its usage message too if hook is set */
335 if ( rte_application_usage_hook
) {
336 printf("===== Application Usage =====\n\n");
337 rte_application_usage_hook(prgname
);
341 /* Set a per-application usage message */
343 rte_set_application_usage_hook( rte_usage_hook_t usage_func
)
345 rte_usage_hook_t old_func
;
347 /* Will be NULL on the first call to denote the last usage routine. */
348 old_func
= rte_application_usage_hook
;
349 rte_application_usage_hook
= usage_func
;
355 eal_get_hugepage_mem_size(void)
360 for (i
= 0; i
< internal_config
.num_hugepage_sizes
; i
++) {
361 struct hugepage_info
*hpi
= &internal_config
.hugepage_info
[i
];
362 if (strnlen(hpi
->hugedir
, sizeof(hpi
->hugedir
)) != 0) {
363 for (j
= 0; j
< RTE_MAX_NUMA_NODES
; j
++) {
364 size
+= hpi
->hugepage_sz
* hpi
->num_pages
[j
];
369 return (size
< SIZE_MAX
) ? (size_t)(size
) : SIZE_MAX
;
372 /* Parse the arguments for --log-level only */
374 eal_log_level_parse(int argc
, char **argv
)
379 const int old_optind
= optind
;
380 const int old_optopt
= optopt
;
381 const int old_optreset
= optreset
;
382 char * const old_optarg
= optarg
;
388 while ((opt
= getopt_long(argc
, argvopt
, eal_short_options
,
389 eal_long_options
, &option_index
)) != EOF
) {
393 /* getopt is not happy, stop right now */
397 ret
= (opt
== OPT_LOG_LEVEL_NUM
) ?
398 eal_parse_common_option(opt
, optarg
, &internal_config
) : 0;
400 /* common parser is not happy */
405 /* restore getopt lib */
408 optreset
= old_optreset
;
412 /* Parse the argument given in the command line of the application */
414 eal_parse_args(int argc
, char **argv
)
419 char *prgname
= argv
[0];
420 const int old_optind
= optind
;
421 const int old_optopt
= optopt
;
422 const int old_optreset
= optreset
;
423 char * const old_optarg
= optarg
;
430 while ((opt
= getopt_long(argc
, argvopt
, eal_short_options
,
431 eal_long_options
, &option_index
)) != EOF
) {
434 * getopt didn't recognise the option, lets parse the
435 * registered options to see if the flag is valid
438 ret
= rte_option_parse(argv
[optind
-1]);
447 ret
= eal_parse_common_option(opt
, optarg
, &internal_config
);
448 /* common parser is not happy */
454 /* common parser handled this option */
459 case OPT_MBUF_POOL_OPS_NAME_NUM
:
461 char *ops_name
= strdup(optarg
);
462 if (ops_name
== NULL
)
463 RTE_LOG(ERR
, EAL
, "Could not store mbuf pool ops name\n");
465 /* free old ops name */
466 if (internal_config
.user_mbuf_pool_ops_name
!=
468 free(internal_config
.user_mbuf_pool_ops_name
);
470 internal_config
.user_mbuf_pool_ops_name
=
479 if (opt
< OPT_LONG_MIN_NUM
&& isprint(opt
)) {
480 RTE_LOG(ERR
, EAL
, "Option %c is not supported "
481 "on FreeBSD\n", opt
);
482 } else if (opt
>= OPT_LONG_MIN_NUM
&&
483 opt
< OPT_LONG_MAX_NUM
) {
484 RTE_LOG(ERR
, EAL
, "Option %s is not supported "
486 eal_long_options
[option_index
].name
);
488 RTE_LOG(ERR
, EAL
, "Option %d is not supported "
489 "on FreeBSD\n", opt
);
497 /* create runtime data directory */
498 if (internal_config
.no_shconf
== 0 &&
499 eal_create_runtime_dir() < 0) {
500 RTE_LOG(ERR
, EAL
, "Cannot create runtime directory\n");
505 if (eal_adjust_config(&internal_config
) != 0) {
511 if (eal_check_common_options(&internal_config
) != 0) {
518 argv
[optind
-1] = prgname
;
522 /* restore getopt lib */
525 optreset
= old_optreset
;
532 check_socket(const struct rte_memseg_list
*msl
, void *arg
)
534 int *socket_id
= arg
;
539 if (msl
->socket_id
== *socket_id
&& msl
->memseg_arr
.count
!= 0)
546 eal_check_mem_on_local_socket(void)
550 socket_id
= rte_lcore_to_socket_id(rte_config
.master_lcore
);
552 if (rte_memseg_list_walk(check_socket
, &socket_id
) == 0)
553 RTE_LOG(WARNING
, EAL
, "WARNING: Master core has no memory on local socket!\n");
558 sync_func(__attribute__((unused
)) void *arg
)
564 rte_eal_mcfg_complete(void)
566 /* ALL shared mem_config related INIT DONE */
567 if (rte_config
.process_type
== RTE_PROC_PRIMARY
)
568 rte_config
.mem_config
->magic
= RTE_MAGIC
;
571 /* return non-zero if hugepages are enabled. */
572 int rte_eal_has_hugepages(void)
574 return !internal_config
.no_hugetlbfs
;
577 /* Abstraction for port I/0 privilege */
579 rte_eal_iopl_init(void)
584 fd
= open("/dev/io", O_RDWR
);
588 /* keep fd open for iopl */
592 static void rte_eal_init_alert(const char *msg
)
594 fprintf(stderr
, "EAL: FATAL: %s\n", msg
);
595 RTE_LOG(ERR
, EAL
, "%s\n", msg
);
598 /* Launch threads, called at application init(). */
600 rte_eal_init(int argc
, char **argv
)
604 static rte_atomic32_t run_once
= RTE_ATOMIC32_INIT(0);
605 char cpuset
[RTE_CPU_AFFINITY_STR_LEN
];
606 char thread_name
[RTE_MAX_THREAD_NAME_LEN
];
608 /* checks if the machine is adequate */
609 if (!rte_cpu_is_supported()) {
610 rte_eal_init_alert("unsupported cpu type.");
615 if (!rte_atomic32_test_and_set(&run_once
)) {
616 rte_eal_init_alert("already called initialization.");
617 rte_errno
= EALREADY
;
621 thread_id
= pthread_self();
623 eal_reset_internal_config(&internal_config
);
625 /* set log level as early as possible */
626 eal_log_level_parse(argc
, argv
);
628 if (rte_eal_cpu_init() < 0) {
629 rte_eal_init_alert("Cannot detect lcores.");
634 fctret
= eal_parse_args(argc
, argv
);
636 rte_eal_init_alert("Invalid 'command line' arguments.");
638 rte_atomic32_clear(&run_once
);
642 /* FreeBSD always uses legacy memory model */
643 internal_config
.legacy_mem
= true;
645 if (eal_plugins_init() < 0) {
646 rte_eal_init_alert("Cannot init plugins");
648 rte_atomic32_clear(&run_once
);
652 if (eal_option_device_parse()) {
654 rte_atomic32_clear(&run_once
);
660 if (rte_eal_intr_init() < 0) {
661 rte_eal_init_alert("Cannot init interrupt-handling thread");
665 if (rte_eal_alarm_init() < 0) {
666 rte_eal_init_alert("Cannot init interrupt-handling thread");
667 /* rte_eal_alarm_init sets rte_errno on failure. */
671 /* Put mp channel init before bus scan so that we can init the vdev
672 * bus through mp channel in the secondary process before the bus scan.
674 if (rte_mp_channel_init() < 0) {
675 rte_eal_init_alert("failed to init mp channel");
676 if (rte_eal_process_type() == RTE_PROC_PRIMARY
) {
682 if (rte_bus_scan()) {
683 rte_eal_init_alert("Cannot scan the buses for devices");
685 rte_atomic32_clear(&run_once
);
689 /* if no EAL option "--iova-mode=<pa|va>", use bus IOVA scheme */
690 if (internal_config
.iova_mode
== RTE_IOVA_DC
) {
691 /* autodetect the IOVA mapping mode (default is RTE_IOVA_PA) */
692 rte_eal_get_configuration()->iova_mode
=
693 rte_bus_get_iommu_class();
695 rte_eal_get_configuration()->iova_mode
=
696 internal_config
.iova_mode
;
699 if (internal_config
.no_hugetlbfs
== 0) {
700 /* rte_config isn't initialized yet */
701 ret
= internal_config
.process_type
== RTE_PROC_PRIMARY
?
702 eal_hugepage_info_init() :
703 eal_hugepage_info_read();
705 rte_eal_init_alert("Cannot get hugepage information.");
707 rte_atomic32_clear(&run_once
);
712 if (internal_config
.memory
== 0 && internal_config
.force_sockets
== 0) {
713 if (internal_config
.no_hugetlbfs
)
714 internal_config
.memory
= MEMSIZE_IF_NO_HUGE_PAGE
;
716 internal_config
.memory
= eal_get_hugepage_mem_size();
719 if (internal_config
.vmware_tsc_map
== 1) {
720 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
721 rte_cycles_vmware_tsc_map
= 1;
722 RTE_LOG (DEBUG
, EAL
, "Using VMWARE TSC MAP, "
723 "you must have monitor_control.pseudo_perfctr = TRUE\n");
725 RTE_LOG (WARNING
, EAL
, "Ignoring --vmware-tsc-map because "
726 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
730 rte_srand(rte_rdtsc());
732 /* in secondary processes, memory init may allocate additional fbarrays
733 * not present in primary processes, so to avoid any potential issues,
734 * initialize memzones first.
736 if (rte_eal_memzone_init() < 0) {
737 rte_eal_init_alert("Cannot init memzone");
742 if (rte_eal_memory_init() < 0) {
743 rte_eal_init_alert("Cannot init memory");
748 if (rte_eal_malloc_heap_init() < 0) {
749 rte_eal_init_alert("Cannot init malloc heap");
754 if (rte_eal_tailqs_init() < 0) {
755 rte_eal_init_alert("Cannot init tail queues for objects");
760 if (rte_eal_timer_init() < 0) {
761 rte_eal_init_alert("Cannot init HPET or TSC timers");
766 eal_check_mem_on_local_socket();
768 eal_thread_init_master(rte_config
.master_lcore
);
770 ret
= eal_thread_dump_affinity(cpuset
, sizeof(cpuset
));
772 RTE_LOG(DEBUG
, EAL
, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
773 rte_config
.master_lcore
, thread_id
, cpuset
,
774 ret
== 0 ? "" : "...");
776 RTE_LCORE_FOREACH_SLAVE(i
) {
779 * create communication pipes between master thread
782 if (pipe(lcore_config
[i
].pipe_master2slave
) < 0)
783 rte_panic("Cannot create pipe\n");
784 if (pipe(lcore_config
[i
].pipe_slave2master
) < 0)
785 rte_panic("Cannot create pipe\n");
787 lcore_config
[i
].state
= WAIT
;
789 /* create a thread for each lcore */
790 ret
= pthread_create(&lcore_config
[i
].thread_id
, NULL
,
791 eal_thread_loop
, NULL
);
793 rte_panic("Cannot create thread\n");
795 /* Set thread_name for aid in debugging. */
796 snprintf(thread_name
, sizeof(thread_name
),
797 "lcore-slave-%d", i
);
798 rte_thread_setname(lcore_config
[i
].thread_id
, thread_name
);
802 * Launch a dummy function on all slave lcores, so that master lcore
803 * knows they are all ready when this function returns.
805 rte_eal_mp_remote_launch(sync_func
, NULL
, SKIP_MASTER
);
806 rte_eal_mp_wait_lcore();
808 /* initialize services so vdevs register service during bus_probe. */
809 ret
= rte_service_init();
811 rte_eal_init_alert("rte_service_init() failed");
816 /* Probe all the buses and devices/drivers on them */
817 if (rte_bus_probe()) {
818 rte_eal_init_alert("Cannot probe devices");
823 /* initialize default service/lcore mappings and start running. Ignore
824 * -ENOTSUP, as it indicates no service coremask passed to EAL.
826 ret
= rte_service_start_with_defaults();
827 if (ret
< 0 && ret
!= -ENOTSUP
) {
833 * Clean up unused files in runtime directory. We do this at the end of
834 * init and not at the beginning because we want to clean stuff up
835 * whether we are primary or secondary process, but we cannot remove
836 * primary process' files because secondary should be able to run even
837 * if primary process is dead.
839 * In no_shconf mode, no runtime directory is created in the first
840 * place, so no cleanup needed.
842 if (!internal_config
.no_shconf
&& eal_clean_runtime_dir() < 0) {
843 rte_eal_init_alert("Cannot clear runtime directory\n");
847 rte_eal_mcfg_complete();
849 /* Call each registered callback, if enabled */
855 int __rte_experimental
856 rte_eal_cleanup(void)
858 rte_service_finalize();
859 rte_mp_channel_cleanup();
860 eal_cleanup_config(&internal_config
);
865 enum rte_lcore_role_t
866 rte_eal_lcore_role(unsigned lcore_id
)
868 return rte_config
.lcore_role
[lcore_id
];
872 rte_eal_process_type(void)
874 return rte_config
.process_type
;
877 int rte_eal_has_pci(void)
879 return !internal_config
.no_pci
;
882 int rte_eal_create_uio_dev(void)
884 return internal_config
.create_uio_dev
;
888 rte_eal_vfio_intr_mode(void)
890 return RTE_INTR_MODE_NONE
;
893 int rte_vfio_setup_device(__rte_unused
const char *sysfs_base
,
894 __rte_unused
const char *dev_addr
,
895 __rte_unused
int *vfio_dev_fd
,
896 __rte_unused
struct vfio_device_info
*device_info
)
901 int rte_vfio_release_device(__rte_unused
const char *sysfs_base
,
902 __rte_unused
const char *dev_addr
,
908 int rte_vfio_enable(__rte_unused
const char *modname
)
913 int rte_vfio_is_enabled(__rte_unused
const char *modname
)
918 int rte_vfio_noiommu_is_enabled(void)
923 int rte_vfio_clear_group(__rte_unused
int vfio_group_fd
)
929 rte_vfio_dma_map(uint64_t __rte_unused vaddr
, __rte_unused
uint64_t iova
,
930 __rte_unused
uint64_t len
)
936 rte_vfio_dma_unmap(uint64_t __rte_unused vaddr
, uint64_t __rte_unused iova
,
937 __rte_unused
uint64_t len
)
943 rte_vfio_get_group_num(__rte_unused
const char *sysfs_base
,
944 __rte_unused
const char *dev_addr
,
945 __rte_unused
int *iommu_group_num
)
951 rte_vfio_get_container_fd(void)
957 rte_vfio_get_group_fd(__rte_unused
int iommu_group_num
)
963 rte_vfio_container_create(void)
969 rte_vfio_container_destroy(__rte_unused
int container_fd
)
975 rte_vfio_container_group_bind(__rte_unused
int container_fd
,
976 __rte_unused
int iommu_group_num
)
982 rte_vfio_container_group_unbind(__rte_unused
int container_fd
,
983 __rte_unused
int iommu_group_num
)
989 rte_vfio_container_dma_map(__rte_unused
int container_fd
,
990 __rte_unused
uint64_t vaddr
,
991 __rte_unused
uint64_t iova
,
992 __rte_unused
uint64_t len
)
998 rte_vfio_container_dma_unmap(__rte_unused
int container_fd
,
999 __rte_unused
uint64_t vaddr
,
1000 __rte_unused
uint64_t iova
,
1001 __rte_unused
uint64_t len
)