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authorDave Barach <dbarach@cisco.com>2017-08-31 05:58:22 -0400
committerDamjan Marion <dmarion.lists@gmail.com>2017-08-31 12:02:49 +0000
commitc8ef08ac63231120900ca08608a61625db28f096 (patch)
tree54e7f3f5850bb0124bebb5c31d28004e8e10d59c /src/vppinfra/bihash_template.c
parent9746552e98166cd07c5d77b26d805c5e602b0335 (diff)
Fix BIHASH_KVP_CACHE_SIZE == 0 case
Setting the bucket-level LRU cache size to zero removes the bucket-level LRU cache code. Change-Id: Idf2e63d0d508675e957366515863766f79a3479c Signed-off-by: Dave Barach <dbarach@cisco.com>
Diffstat (limited to 'src/vppinfra/bihash_template.c')
-rw-r--r--src/vppinfra/bihash_template.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/vppinfra/bihash_template.c b/src/vppinfra/bihash_template.c
index b5eb379a0f5..704d1659fc8 100644
--- a/src/vppinfra/bihash_template.c
+++ b/src/vppinfra/bihash_template.c
@@ -430,7 +430,9 @@ int BV (clib_bihash_search)
u64 hash;
u32 bucket_index;
BVT (clib_bihash_value) * v;
+#if BIHASH_KVP_CACHE_SIZE > 0
BVT (clib_bihash_kv) * kvp;
+#endif
BVT (clib_bihash_bucket) * b;
int i, limit;
@@ -444,6 +446,7 @@ int BV (clib_bihash_search)
if (b->offset == 0)
return -1;
+#if BIHASH_KVP_CACHE_SIZE > 0
/* Check the cache, if currently enabled */
if (PREDICT_TRUE ((b->cache_lru & (1 << 15)) == 0))
{
@@ -459,6 +462,7 @@ int BV (clib_bihash_search)
}
}
}
+#endif
hash >>= h->log2_nbuckets;
@@ -472,9 +476,10 @@ int BV (clib_bihash_search)
{
if (BV (clib_bihash_key_compare) (v->kvp[i].key, search_key->key))
{
- u8 cache_slot;
*valuep = v->kvp[i];
+#if BIHASH_KVP_CACHE_SIZE > 0
+ u8 cache_slot;
/* Shut off the cache */
if (BV (clib_bihash_lock_bucket) (b))
{
@@ -486,6 +491,7 @@ int BV (clib_bihash_search)
BV (clib_bihash_unlock_bucket) (b);
h->cache_misses++;
}
+#endif
return 0;
}
}
@@ -494,6 +500,7 @@ int BV (clib_bihash_search)
u8 *BV (format_bihash_lru) (u8 * s, va_list * args)
{
+#if BIHASH_KVP_SIZE > 0
int i;
BVT (clib_bihash_bucket) * b = va_arg (*args, BVT (clib_bihash_bucket) *);
u16 cache_lru = b->cache_lru;
@@ -502,13 +509,18 @@ u8 *BV (format_bihash_lru) (u8 * s, va_list * args)
for (i = 0; i < BIHASH_KVP_CACHE_SIZE; i++)
s = format (s, "[%d] ", ((cache_lru >> (3 * i)) & 7));
+#else
+ return format (s, "cache not configured");
+#endif
return (s);
}
void
BV (clib_bihash_update_lru_not_inline) (BVT (clib_bihash_bucket) * b, u8 slot)
{
+#if BIHASH_KVP_SIZE > 0
BV (clib_bihash_update_lru) (b, slot);
+#endif
}
u8 *BV (format_bihash) (u8 * s, va_list * args)