lib/bpf/bpf_impl.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #ifndef _BPF_H_
   6 #define _BPF_H_
   7
   8 #include <rte_bpf.h>
   9 #include <sys/mman.h>
  10
  11 #define MAX_BPF_STACK_SIZE      0x200
  12
  13 struct rte_bpf {
  14         struct rte_bpf_prm prm;
  15         struct rte_bpf_jit jit;
  16         size_t sz;
  17         uint32_t stack_sz;
  18 };
  19
  20 extern int bpf_validate(struct rte_bpf *bpf);
  21
  22 extern int bpf_jit(struct rte_bpf *bpf);
  23
  24 extern int bpf_jit_x86(struct rte_bpf *);
  25 extern int bpf_jit_arm64(struct rte_bpf *);
  26
  27 extern int rte_bpf_logtype;
  28
  29 #define RTE_BPF_LOG(lvl, fmt, args...) \
  30         rte_log(RTE_LOG_## lvl, rte_bpf_logtype, fmt, ##args)
  31
  32 static inline size_t
  33 bpf_size(uint32_t bpf_op_sz)
  34 {
  35         if (bpf_op_sz == BPF_B)
  36                 return sizeof(uint8_t);
  37         else if (bpf_op_sz == BPF_H)
  38                 return sizeof(uint16_t);
  39         else if (bpf_op_sz == BPF_W)
  40                 return sizeof(uint32_t);
  41         else if (bpf_op_sz == EBPF_DW)
  42                 return sizeof(uint64_t);
  43         return 0;
  44 }
  45
  46 #endif /* _BPF_H_ */