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rte_bpf.h(3) DPDK rte_bpf.h(3) NAME rte_bpf.h SYNOPSIS #include <rte_common.h> #include <rte_mbuf.h> #include <rte_malloc.h> #include <bpf_def.h> Data Structures struct rte_bpf_arg struct rte_bpf_xsym struct rte_bpf_prm struct rte_bpf_jit Macros #define RTE_BPF_ARG_PTR_TYPE(x) ((x) & RTE_BPF_ARG_PTR) Enumerations enum rte_bpf_arg_type { RTE_BPF_ARG_UNDEF, RTE_BPF_ARG_RAW, RTE_BPF_ARG_PTR = 0x10, RTE_BPF_ARG_PTR_MBUF, RTE_BPF_ARG_RESERVED } enum rte_bpf_xtype { RTE_BPF_XTYPE_FUNC, RTE_BPF_XTYPE_VAR } Functions void rte_bpf_destroy (struct rte_bpf *bpf) struct rte_bpf * rte_bpf_load (const struct rte_bpf_prm *prm) __rte_malloc __rte_dealloc(rte_bpf_destroy struct rte_bpf struct rte_bpf * rte_bpf_elf_load (const struct rte_bpf_prm *prm, const char *fname, const char *sname) __rte_malloc __rte_dealloc(rte_bpf_destroy struct rte_bpf struct rte_bpf uint64_t rte_bpf_exec (const struct rte_bpf *bpf, void *ctx) uint32_t rte_bpf_exec_burst (const struct rte_bpf *bpf, void *ctx[], uint64_t rc[], uint32_t num) int rte_bpf_get_jit (const struct rte_bpf *bpf, struct rte_bpf_jit *jit) void rte_bpf_dump (FILE *f, const struct ebpf_insn *buf, uint32_t len) struct rte_bpf_prm * rte_bpf_convert (const struct bpf_program *prog) __rte_malloc __rte_dealloc_free Detailed Description RTE BPF support. librte_bpf provides a framework to load and execute eBPF bytecode inside user-space dpdk based applications. It supports basic set of features from eBPF spec (https://www.kernel.org/doc/Documentation/networking/filter.txt). Definition in file rte_bpf.h. Macro Definition Documentation #define RTE_BPF_ARG_PTR_TYPE(x) ((x) & RTE_BPF_ARG_PTR) determine is argument a pointer Definition at line 56 of file rte_bpf.h. Enumeration Type Documentation enum rte_bpf_arg_type Possible types for function/BPF program arguments. Enumerator RTE_BPF_ARG_UNDEF undefined RTE_BPF_ARG_RAW scalar value RTE_BPF_ARG_PTR pointer to data buffer RTE_BPF_ARG_PTR_MBUF pointer to rte_mbuf RTE_BPF_ARG_RESERVED reserved for internal use Definition at line 31 of file rte_bpf.h. enum rte_bpf_xtype Possible types for external symbols. Enumerator RTE_BPF_XTYPE_FUNC function RTE_BPF_XTYPE_VAR variable Definition at line 61 of file rte_bpf.h. Function Documentation void rte_bpf_destroy (struct rte_bpf * bpf) De-allocate all memory used by this eBPF execution context. Parameters bpf BPF handle to destroy. struct rte_bpf * rte_bpf_load (const struct rte_bpf_prm * prm) Create a new eBPF execution context and load given BPF code into it. Parameters prm Parameters used to create and initialise the BPF execution context. Returns BPF handle that is used in future BPF operations, or NULL on error, with error code set in rte_errno. Possible rte_errno errors include: • EINVAL - invalid parameter passed to function • ENOMEM - can't reserve enough memory struct rte_bpf struct rte_bpf * rte_bpf_elf_load (const struct rte_bpf_prm * prm, const char * fname, const char * sname) Create a new eBPF execution context and load BPF code from given ELF file into it. Note that if the function will encounter EBPF_PSEUDO_CALL instruction that references external symbol, it will treat is as standard BPF_CALL to the external helper function. Parameters prm Parameters used to create and initialise the BPF execution context. fname Pathname for a ELF file. sname Name of the executable section within the file to load. Returns BPF handle that is used in future BPF operations, or NULL on error, with error code set in rte_errno. Possible rte_errno errors include: • EINVAL - invalid parameter passed to function • ENOMEM - can't reserve enough memory struct rte_bpf struct rte_bpf uint64_t rte_bpf_exec (const struct rte_bpf * bpf, void * ctx) Execute given BPF bytecode. Parameters bpf handle for the BPF code to execute. ctx pointer to input context. Returns BPF execution return value. uint32_t rte_bpf_exec_burst (const struct rte_bpf * bpf, void * ctx[], uint64_t rc[], uint32_t num) Execute given BPF bytecode over a set of input contexts. Parameters bpf handle for the BPF code to execute. ctx array of pointers to the input contexts. rc array of return values (one per input). num number of elements in ctx[] (and rc[]). Returns number of successfully processed inputs. int rte_bpf_get_jit (const struct rte_bpf * bpf, struct rte_bpf_jit * jit) Provide information about natively compiled code for given BPF handle. Parameters bpf handle for the BPF code. jit pointer to the rte_bpf_jit structure to be filled with related data. Returns • -EINVAL if the parameters are invalid. • Zero if operation completed successfully. void rte_bpf_dump (FILE * f, const struct ebpf_insn * buf, uint32_t len) Dump epf instructions to a file. Parameters f A pointer to a file for output buf A pointer to BPF instructions len Number of BPF instructions to dump. struct rte_bpf_prm * rte_bpf_convert (const struct bpf_program * prog) Convert a Classic BPF program from libpcap into a DPDK BPF code. Parameters prog Classic BPF program from pcap_compile(). Returns Pointer to BPF program (allocated with rte_malloc) that is used in future BPF operations, or NULL on error, with error code set in rte_errno. Possible rte_errno errors include: • EINVAL - invalid parameter passed to function • ENOMEM - can't reserve enough memory • ENOTSUP - operation not supported Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jun 11 2026 rte_bpf.h(3)
NAME | SYNOPSIS | Detailed Description | Macro Definition Documentation | Enumeration Type Documentation | Function Documentation | Author
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