1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
8 #include <rte_rwlock.h>
10 #define IPSEC_MAX_HDR_SIZE 64
11 #define IPSEC_MAX_IV_SIZE 16
12 #define IPSEC_MAX_IV_QWORD (IPSEC_MAX_IV_SIZE / sizeof(uint64_t))
14 /* padding alignment for different algorithms */
16 IPSEC_PAD_DEFAULT = 4,
17 IPSEC_PAD_AES_CBC = IPSEC_MAX_IV_SIZE,
18 IPSEC_PAD_AES_GCM = IPSEC_PAD_DEFAULT,
19 IPSEC_PAD_NULL = IPSEC_PAD_DEFAULT,
22 /* these definitions probably has to be in rte_crypto_sym.h */
32 #ifdef __SIZEOF_INT128__
41 #define REPLAY_SQN_NUM 2
42 #define REPLAY_SQN_NEXT(n) ((n) ^ 1)
47 __extension__ uint64_t window[0];
51 uint64_t type; /* type of given SA */
52 uint64_t udata; /* user defined */
53 uint32_t size; /* size of given sa object */
55 /* sqn calculations related */
60 uint16_t bucket_index_mask;
62 /* template for crypto op fields */
64 union sym_op_ofslen cipher;
65 union sym_op_ofslen auth;
68 uint8_t proto; /* next proto */
74 uint8_t iv_ofs; /* offset for algo-specific IV inside crypto op */
78 /* template for tunnel header */
79 uint8_t hdr[IPSEC_MAX_HDR_SIZE];
82 * sqn and replay window
83 * In case of SA handled by multiple threads *sqn* cacheline
84 * could be shared by multiple cores.
85 * To minimise perfomance impact, we try to locate in a separate
86 * place from other frequently accesed data.
94 uint32_t rdidx; /* read index */
95 uint32_t wridx; /* write index */
96 struct replay_sqn *rsn[REPLAY_SQN_NUM];
100 } __rte_cache_aligned;
103 ipsec_sa_pkt_func_select(const struct rte_ipsec_session *ss,
104 const struct rte_ipsec_sa *sa, struct rte_ipsec_sa_pkt_func *pf);