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authorSteven Luong <sluong@cisco.com>2021-10-15 08:35:56 -0700
committerDamjan Marion <dmarion@me.com>2021-10-16 08:33:09 +0000
commit27c56681d81c814be15f69bd41f98ef7b3606564 (patch)
treed3bca27626f9e542e068ed283ca0adbbbacc7605 /src/vnet/fib/fib_source.h
parent0d27e3e7a1d5ddd572718818a56270bac639ea2e (diff)
memif: Enhance show memif descriptors to display region
memif descriptors table may have more than one shared memory region. To see whether a descriptor's memory address is valid or not, it is beneficial to also display the descriptor's region. While at it, fix the truncation problem for the offset field. Type: improvement Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Ia3b7062ac0323c39ade6f3a58333c6405889148f
Diffstat (limited to 'src/vnet/fib/fib_source.h')
0 files changed, 0 insertions, 0 deletions
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/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#undef BIHASH_TYPE
#undef BIHASH_KVP_PER_PAGE
#undef BIHASH_32_64_SVM
#undef BIHASH_ENABLE_STATS
#undef BIHASH_KVP_AT_BUCKET_LEVEL
#undef BIHASH_LAZY_INSTANTIATE
#undef BIHASH_BUCKET_PREFETCH_CACHE_LINES
#undef BIHASH_USE_HEAP

#define BIHASH_TYPE _16_8
#define BIHASH_KVP_PER_PAGE 4
#define BIHASH_KVP_AT_BUCKET_LEVEL 1
#define BIHASH_LAZY_INSTANTIATE 0
#define BIHASH_BUCKET_PREFETCH_CACHE_LINES 2
#define BIHASH_USE_HEAP 1

#ifndef __included_bihash_16_8_h__
#define __included_bihash_16_8_h__

#include <vppinfra/heap.h>
#include <vppinfra/format.h>
#include <vppinfra/pool.h>
#include <vppinfra/xxhash.h>
#include <vppinfra/crc32.h>

typedef struct
{
  u64 key[2];
  u64 value;
} clib_bihash_kv_16_8_t;

static inline int
clib_bihash_is_free_16_8 (clib_bihash_kv_16_8_t * v)
{
  /* Free values are clib_memset to 0xff, check a bit... */
  if (v->key[0] == ~0ULL && v->value == ~0ULL)
    return 1;
  return 0;
}

static inline u64
clib_bihash_hash_16_8 (clib_bihash_kv_16_8_t * v)
{
#ifdef clib_crc32c_uses_intrinsics
  return clib_crc32c ((u8 *) v->key, 16);
#else
  u64 tmp = v->key[0] ^ v->key[1];
  return clib_xxhash (tmp);
#endif
}

static inline u8 *
format_bihash_kvp_16_8 (u8 * s, va_list * args)
{
  clib_bihash_kv_16_8_t *v = va_arg (*args, clib_bihash_kv_16_8_t *);

  s = format (s, "key %llu %llu value %llu", v->key[0], v->key[1], v->value);
  return s;
}

static inline int
clib_bihash_key_compare_16_8 (u64 * a, u64 * b)
{
#if defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
  u64x2 v;
  v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
  return u64x2_is_all_zero (v);
#else
  return ((a[0] ^ b[0]) | (a[1] ^ b[1])) == 0;
#endif
}

#undef __included_bihash_template_h__
#include <vppinfra/bihash_template.h>

#endif /* __included_bihash_16_8_h__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */