1/*
2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#undef BIHASH_TYPE
16#undef BIHASH_KVP_PER_PAGE
17#undef BIHASH_32_64_SVM
18#undef BIHASH_ENABLE_STATS
19#undef BIHASH_KVP_AT_BUCKET_LEVEL
20#undef BIHASH_LAZY_INSTANTIATE
21#undef BIHASH_BUCKET_PREFETCH_CACHE_LINES
22
23#define BIHASH_TYPE _8_8_stats
24#define BIHASH_KVP_PER_PAGE 4
25#define BIHASH_ENABLE_STATS 1
26#define BIHASH_KVP_AT_BUCKET_LEVEL 0
27#define BIHASH_LAZY_INSTANTIATE 1
28#define BIHASH_BUCKET_PREFETCH_CACHE_LINES 1
29
30#ifndef __included_bihash_8_8_stats_h__
31#define __included_bihash_8_8__stats_h__
32
33#include <vppinfra/heap.h>
34#include <vppinfra/format.h>
35#include <vppinfra/pool.h>
36#include <vppinfra/xxhash.h>
37#include <vppinfra/crc32.h>
38
39/** 8 octet key, 8 octet key value pair */
40typedef struct
41{
42  u64 key;			/**< the key */
43  u64 value;			/**< the value */
44} clib_bihash_kv_8_8_stats_t;
45
46/** Decide if a clib_bihash_kv_8_8_t instance is free
47    @param v- pointer to the (key,value) pair
48*/
49static inline int
50clib_bihash_is_free_8_8_stats (clib_bihash_kv_8_8_stats_t * v)
51{
52  if (v->key == ~0ULL && v->value == ~0ULL)
53    return 1;
54  return 0;
55}
56
57/** Hash a clib_bihash_kv_8_8_t instance
58    @param v - pointer to the (key,value) pair, hash the key (only)
59*/
60static inline u64
61clib_bihash_hash_8_8_stats (clib_bihash_kv_8_8_stats_t * v)
62{
63  /* Note: to torture-test linear scan, make this fn return a constant */
64#ifdef clib_crc32c_uses_intrinsics
65  return clib_crc32c ((u8 *) & v->key, 8);
66#else
67  return clib_xxhash (v->key);
68#endif
69}
70
71/** Format a clib_bihash_kv_8_8_t instance
72    @param s - u8 * vector under construction
73    @param args (vararg) - the (key,value) pair to format
74    @return s - the u8 * vector under construction
75*/
76static inline u8 *
77format_bihash_kvp_8_8_stats (u8 * s, va_list * args)
78{
79  clib_bihash_kv_8_8_stats_t *v =
80    va_arg (*args, clib_bihash_kv_8_8_stats_t *);
81
82  s = format (s, "key %llu value %llu", v->key, v->value);
83  return s;
84}
85
86/** Compare two clib_bihash_kv_8_8_t instances
87    @param a - first key
88    @param b - second key
89*/
90static inline int
91clib_bihash_key_compare_8_8_stats (u64 a, u64 b)
92{
93  return a == b;
94}
95
96#undef __included_bihash_template_h__
97#include <vppinfra/bihash_template.h>
98
99#endif /* __included_bihash_8_8_stats_h__ */
100
101/*
102 * fd.io coding-style-patch-verification: ON
103 *
104 * Local Variables:
105 * eval: (c-set-style "gnu")
106 * End:
107 */
108