lib/librte_bpf/bpf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <stdarg.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <errno.h>
   9 #include <stdint.h>
  10 #include <inttypes.h>
  11
  12 #include <rte_common.h>
  13 #include <rte_eal.h>
  14
  15 #include "bpf_impl.h"
  16
  17 int rte_bpf_logtype;
  18
  19 __rte_experimental void
  20 rte_bpf_destroy(struct rte_bpf *bpf)
  21 {
  22         if (bpf != NULL) {
  23                 if (bpf->jit.func != NULL)
  24                         munmap(bpf->jit.func, bpf->jit.sz);
  25                 munmap(bpf, bpf->sz);
  26         }
  27 }
  28
  29 __rte_experimental int
  30 rte_bpf_get_jit(const struct rte_bpf *bpf, struct rte_bpf_jit *jit)
  31 {
  32         if (bpf == NULL || jit == NULL)
  33                 return -EINVAL;
  34
  35         jit[0] = bpf->jit;
  36         return 0;
  37 }
  38
  39 int
  40 bpf_jit(struct rte_bpf *bpf)
  41 {
  42         int32_t rc;
  43
  44 #ifdef RTE_ARCH_X86_64
  45         rc = bpf_jit_x86(bpf);
  46 #else
  47         rc = -ENOTSUP;
  48 #endif
  49
  50         if (rc != 0)
  51                 RTE_BPF_LOG(WARNING, "%s(%p) failed, error code: %d;\n",
  52                         __func__, bpf, rc);
  53         return rc;
  54 }
  55
  56 RTE_INIT(rte_bpf_init_log)
  57 {
  58         rte_bpf_logtype = rte_log_register("lib.bpf");
  59         if (rte_bpf_logtype >= 0)
  60                 rte_log_set_level(rte_bpf_logtype, RTE_LOG_INFO);
  61 }