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-rw-r--r--src/vppinfra/CMakeLists.txt24
-rw-r--r--src/vppinfra/anneal.c172
-rw-r--r--src/vppinfra/anneal.h89
-rw-r--r--src/vppinfra/cuckoo_16_8.h128
-rw-r--r--src/vppinfra/cuckoo_8_8.h120
-rw-r--r--src/vppinfra/cuckoo_common.h59
-rw-r--r--src/vppinfra/cuckoo_debug.h83
-rw-r--r--src/vppinfra/cuckoo_template.c1002
-rw-r--r--src/vppinfra/cuckoo_template.h460
-rw-r--r--src/vppinfra/fheap.c473
-rw-r--r--src/vppinfra/fheap.h140
-rw-r--r--src/vppinfra/flowhash_24_16.h77
-rw-r--r--src/vppinfra/flowhash_8_8.h67
-rw-r--r--src/vppinfra/flowhash_template.h608
-rw-r--r--src/vppinfra/pfhash.h276
-rw-r--r--src/vppinfra/phash.c1017
-rw-r--r--src/vppinfra/phash.h194
-rw-r--r--src/vppinfra/pipeline.h176
-rw-r--r--src/vppinfra/qhash.c859
-rw-r--r--src/vppinfra/qhash.h169
-rw-r--r--src/vppinfra/slist.c336
-rw-r--r--src/vppinfra/slist.h145
-rw-r--r--src/vppinfra/test_cuckoo_bihash.c451
-rw-r--r--src/vppinfra/test_cuckoo_template.c318
-rw-r--r--src/vppinfra/test_flowhash_template.c257
-rw-r--r--src/vppinfra/test_phash.c151
-rw-r--r--src/vppinfra/test_qhash.c335
-rw-r--r--src/vppinfra/test_slist.c228
-rw-r--r--src/vppinfra/test_timing_wheel.c391
-rw-r--r--src/vppinfra/test_vhash.c759
-rw-r--r--src/vppinfra/test_zvec.c119
-rw-r--r--src/vppinfra/unix-kelog.c415
-rw-r--r--src/vppinfra/vhash.c772
-rw-r--r--src/vppinfra/vhash.h850
-rw-r--r--src/vppinfra/xy.h56
-rw-r--r--src/vppinfra/zvec.c442
-rw-r--r--src/vppinfra/zvec.h166
37 files changed, 1 insertions, 12383 deletions
diff --git a/src/vppinfra/CMakeLists.txt b/src/vppinfra/CMakeLists.txt
index f2279d0857c..e667eb03e8c 100644
--- a/src/vppinfra/CMakeLists.txt
+++ b/src/vppinfra/CMakeLists.txt
@@ -47,7 +47,6 @@ set(VPPINFRA_SRCS
elf.c
elog.c
error.c
- fheap.c
fifo.c
format.c
graph.c
@@ -68,7 +67,6 @@ set(VPPINFRA_SRCS
random_isaac.c
rbtree.c
serialize.c
- slist.c
socket.c
std-formats.c
string.c
@@ -87,7 +85,6 @@ set(VPPINFRA_SRCS
valloc.c
vec.c
vector.c
- zvec.c
)
set(VPPINFRA_HEADERS
@@ -109,12 +106,6 @@ set(VPPINFRA_HEADERS
clib.h
cpu.h
crc32.h
- cuckoo_8_8.h
- cuckoo_16_8.h
- cuckoo_common.h
- cuckoo_debug.h
- cuckoo_template.h
- cuckoo_template.c
dlist.h
dlmalloc.h
elf_clib.h
@@ -122,12 +113,8 @@ set(VPPINFRA_HEADERS
elog.h
error_bootstrap.h
error.h
- fheap.h
fifo.h
file.h
- flowhash_24_16.h
- flowhash_8_8.h
- flowhash_template.h
format.h
graph.h
hash.h
@@ -149,7 +136,6 @@ set(VPPINFRA_HEADERS
os.h
pcap.h
pcap_funcs.h
- pipeline.h
pmalloc.h
pool.h
pmc.h
@@ -160,7 +146,6 @@ set(VPPINFRA_HEADERS
rbtree.h
serialize.h
sha2.h
- slist.h
smp.h
socket.h
sparse_vec.h
@@ -190,8 +175,6 @@ set(VPPINFRA_HEADERS
vector_neon.h
vector_sse42.h
xxhash.h
- xy.h
- zvec.h
linux/syscall.h
linux/sysfs.h
)
@@ -218,12 +201,10 @@ option(VPP_BUILD_VPPINFRA_TESTS "Build vppinfra tests." OFF)
if(VPP_BUILD_VPPINFRA_TESTS)
foreach(test
bihash_vec88
- cuckoo_template
dlist
elf
elog
fifo
- flowhash_template
format
fpool
hash
@@ -238,16 +219,13 @@ if(VPP_BUILD_VPPINFRA_TESTS)
random_isaac
rwlock
serialize
- slist
socket
spinlock
time
time_range
- timing_wheel
tw_timer
valloc
vec
- zvec
)
add_vpp_executable(test_${test}
SOURCES test_${test}.c
@@ -255,7 +233,7 @@ if(VPP_BUILD_VPPINFRA_TESTS)
)
endforeach()
- foreach(test bihash_template cuckoo_bihash)
+ foreach(test bihash_template)
add_vpp_executable(test_${test}
SOURCES test_${test}.c
LINK_LIBRARIES vppinfra Threads::Threads
diff --git a/src/vppinfra/anneal.c b/src/vppinfra/anneal.c
deleted file mode 100644
index 35d10946482..00000000000
--- a/src/vppinfra/anneal.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- Copyright (c) 2011 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.
-*/
-
-#include <vppinfra/anneal.h>
-
-/*
- * Optimize an objective function by simulated annealing
- *
- * Here are a couple of short, easily-understood
- * descriptions of simulated annealing:
- *
- * http://www.cs.sandia.gov/opt/survey/sa.html
- * Numerical Recipes in C, 2nd ed., 444ff
- *
- * The description in the Wikipedia is not helpful.
- *
- * The algorithm tries to produce a decent answer to combinatorially
- * explosive optimization problems by analogy to slow cooling
- * of hot metal, aka annealing.
- *
- * There are (at least) three problem-dependent annealing parameters
- * to consider:
- *
- * t0, the initial "temperature. Should be set so that the probability
- * of accepting a transition to a higher cost configuration is
- * initially about 0.8.
- *
- * ntemps, the number of temperatures to use. Each successive temperature
- * is some fraction of the previous temperature.
- *
- * nmoves_per_temp, the number of configurations to try at each temperature
- *
- * It is a black art to set ntemps, nmoves_per_temp, and the rate
- * at which the temperature drops. Go too fast with too few iterations,
- * and the computation falls into a local minimum instead of the
- * (desired) global minimum.
- */
-
-void
-clib_anneal (clib_anneal_param_t * p)
-{
- f64 t;
- f64 cost, prev_cost, delta_cost, initial_cost, best_cost;
- f64 random_accept, delta_cost_over_t;
- f64 total_increase = 0.0, average_increase;
- u32 i, j;
- u32 number_of_increases = 0;
- u32 accepted_this_temperature;
- u32 best_saves_this_temperature;
- int accept;
-
- t = p->initial_temperature;
- best_cost = initial_cost = prev_cost = p->anneal_metric (p->opaque);
- p->anneal_save_best_configuration (p->opaque);
-
- if (p->flags & CLIB_ANNEAL_VERBOSE)
- fformat (stdout, "Initial cost %.2f\n", initial_cost);
-
- for (i = 0; i < p->number_of_temperatures; i++)
- {
- accepted_this_temperature = 0;
- best_saves_this_temperature = 0;
-
- p->anneal_restore_best_configuration (p->opaque);
- cost = best_cost;
-
- for (j = 0; j < p->number_of_configurations_per_temperature; j++)
- {
- p->anneal_new_configuration (p->opaque);
- cost = p->anneal_metric (p->opaque);
-
- delta_cost = cost - prev_cost;
-
- /* cost function looks better, accept this move */
- if (p->flags & CLIB_ANNEAL_MINIMIZE)
- accept = delta_cost < 0.0;
- else
- accept = delta_cost > 0.0;
-
- if (accept)
- {
- if (p->flags & CLIB_ANNEAL_MINIMIZE)
- if (cost < best_cost)
- {
- if (p->flags & CLIB_ANNEAL_VERBOSE)
- fformat (stdout, "New best cost %.2f\n", cost);
- best_cost = cost;
- p->anneal_save_best_configuration (p->opaque);
- best_saves_this_temperature++;
- }
-
- accepted_this_temperature++;
- prev_cost = cost;
- continue;
- }
-
- /* cost function worse, keep stats to suggest t0 */
- total_increase += (p->flags & CLIB_ANNEAL_MINIMIZE) ?
- delta_cost : -delta_cost;
-
- number_of_increases++;
-
- /*
- * Accept a higher cost with Pr { e^(-(delta_cost / T)) },
- * equivalent to rnd[0,1] < e^(-(delta_cost / T))
- *
- * AKA, the Boltzmann factor.
- */
- random_accept = random_f64 (&p->random_seed);
-
- delta_cost_over_t = delta_cost / t;
-
- if (random_accept < exp (-delta_cost_over_t))
- {
- accepted_this_temperature++;
- prev_cost = cost;
- continue;
- }
- p->anneal_restore_previous_configuration (p->opaque);
- }
-
- if (p->flags & CLIB_ANNEAL_VERBOSE)
- {
- fformat (stdout, "Temp %.2f, cost %.2f, accepted %d, bests %d\n", t,
- prev_cost, accepted_this_temperature,
- best_saves_this_temperature);
- fformat (stdout, "Improvement %.2f\n", initial_cost - prev_cost);
- fformat (stdout, "-------------\n");
- }
-
- t = t * p->temperature_step;
- }
-
- /*
- * Empirically, one wants the probability of accepting a move
- * at the initial temperature to be about 0.8.
- */
- average_increase = total_increase / (f64) number_of_increases;
- p->suggested_initial_temperature = average_increase / 0.22; /* 0.22 = -ln (0.8) */
-
- p->final_temperature = t;
- p->final_metric = p->anneal_metric (p->opaque);
-
- if (p->flags & CLIB_ANNEAL_VERBOSE)
- {
- fformat (stdout, "Average cost increase from a bad move: %.2f\n",
- average_increase);
- fformat (stdout, "Suggested t0 = %.2f\n",
- p->suggested_initial_temperature);
- }
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/anneal.h b/src/vppinfra/anneal.h
deleted file mode 100644
index 148d38ba551..00000000000
--- a/src/vppinfra/anneal.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- Copyright (c) 2011 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.
-*/
-
-#ifndef __included_anneal_h__
-#define __included_anneal_h__
-
-#include <vppinfra/clib.h>
-#include <vppinfra/format.h>
-#include <vppinfra/random.h>
-#include <math.h>
-
-typedef struct
-{
- /* Initial temperature */
- f64 initial_temperature;
-
- /* Temperature fraction at each step, 0.95 is reasonable */
- f64 temperature_step;
-
- /* Number of temperatures used */
- u32 number_of_temperatures;
-
- /* Number of configurations tried at each temperature */
- u32 number_of_configurations_per_temperature;
-
- u32 flags;
-#define CLIB_ANNEAL_VERBOSE (1<<0)
-#define CLIB_ANNEAL_MINIMIZE (1<<1) /* mutually exclusive */
-#define CLIB_ANNEAL_MAXIMIZE (1<<2) /* mutually exclusive */
-
- /* Random number seed, set to ensure repeatable results */
- u32 random_seed;
-
- /* Opaque data passed to callbacks */
- void *opaque;
-
- /* Final temperature (output) */
- f64 final_temperature;
-
- /* Final metric (output) */
- f64 final_metric;
-
- /* Suggested initial temperature (output) */
- f64 suggested_initial_temperature;
-
-
- /*--- Callbacks ---*/
-
- /* objective function to minimize */
- f64 (*anneal_metric) (void *opaque);
-
- /* Generate a new configuration */
- void (*anneal_new_configuration) (void *opaque);
-
- /* Restore the previous configuration */
- void (*anneal_restore_previous_configuration) (void *opaque);
-
- /* Save best configuration found e.g at a certain temperature */
- void (*anneal_save_best_configuration) (void *opaque);
-
- /* restore best configuration found e.g at a certain temperature */
- void (*anneal_restore_best_configuration) (void *opaque);
-
-} clib_anneal_param_t;
-
-void clib_anneal (clib_anneal_param_t * p);
-
-#endif /* __included_anneal_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_16_8.h b/src/vppinfra/cuckoo_16_8.h
deleted file mode 100644
index b667ff6cbb8..00000000000
--- a/src/vppinfra/cuckoo_16_8.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (c) 2017 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 CLIB_CUCKOO_TYPE
-
-#define CLIB_CUCKOO_TYPE _16_8
-#define CLIB_CUCKOO_KVP_PER_BUCKET (4)
-#define CLIB_CUCKOO_LOG2_KVP_PER_BUCKET (2)
-#define CLIB_CUCKOO_BFS_MAX_STEPS (2000)
-#define CLIB_CUCKOO_BFS_MAX_PATH_LENGTH (8)
-
-#ifndef __included_cuckoo_16_8_h__
-#define __included_cuckoo_16_8_h__
-
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/xxhash.h>
-#include <vppinfra/cuckoo_debug.h>
-#include <vppinfra/cuckoo_common.h>
-
-#undef CLIB_CUCKOO_OPTIMIZE_PREFETCH
-#undef CLIB_CUCKOO_OPTIMIZE_UNROLL
-#undef CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH
-#define CLIB_CUCKOO_OPTIMIZE_PREFETCH 1
-#define CLIB_CUCKOO_OPTIMIZE_UNROLL 1
-#define CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH 1
-
-#if __SSE4_2__ && !defined (__i386__)
-#include <x86intrin.h>
-#endif
-
-/** 8 octet key, 8 octet key value pair */
-typedef struct
-{
- u64 key[2]; /**< the key */
- u64 value; /**< the value */
-} clib_cuckoo_kv_16_8_t;
-
-/** Decide if a clib_cuckoo_kv_16_8_t instance is free
- @param v- pointer to the (key,value) pair
-*/
-always_inline int
-clib_cuckoo_kv_is_free_16_8 (const clib_cuckoo_kv_16_8_t * v)
-{
- if (v->key[0] == ~0ULL && v->value == ~0ULL)
- return 1;
- return 0;
-}
-
-always_inline void
-clib_cuckoo_kv_set_free_16_8 (clib_cuckoo_kv_16_8_t * v)
-{
- clib_memset (v, 0xff, sizeof (*v));
-}
-
-/** Format a clib_cuckoo_kv_16_8_t instance
- @param s - u8 * vector under construction
- @param args (vararg) - the (key,value) pair to format
- @return s - the u8 * vector under construction
-*/
-always_inline u8 *
-format_cuckoo_kvp_16_8 (u8 * s, va_list * args)
-{
- clib_cuckoo_kv_16_8_t *v = va_arg (*args, clib_cuckoo_kv_16_8_t *);
-
- if (clib_cuckoo_kv_is_free_16_8 (v))
- {
- s = format (s, " -- empty -- ");
- }
- else
- {
- s =
- format (s, "key %llu%llu value %llu", v->key[0], v->key[1], v->value);
- }
- return s;
-}
-
-always_inline u64
-clib_cuckoo_hash_16_8 (clib_cuckoo_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
-}
-
-/** Compare two clib_cuckoo_kv_16_8_t instances
- @param a - first key
- @param b - second key
-*/
-always_inline int
-clib_cuckoo_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_cuckoo_template_h__
-#include <vppinfra/cuckoo_template.h>
-
-#endif /* __included_cuckoo_16_8_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_8_8.h b/src/vppinfra/cuckoo_8_8.h
deleted file mode 100644
index 67af79c0e50..00000000000
--- a/src/vppinfra/cuckoo_8_8.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (c) 2017 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 CLIB_CUCKOO_TYPE
-
-#define CLIB_CUCKOO_TYPE _8_8
-#define CLIB_CUCKOO_KVP_PER_BUCKET (4)
-#define CLIB_CUCKOO_LOG2_KVP_PER_BUCKET (2)
-#define CLIB_CUCKOO_BFS_MAX_STEPS (2000)
-#define CLIB_CUCKOO_BFS_MAX_PATH_LENGTH (8)
-
-#ifndef __included_cuckoo_8_8_h__
-#define __included_cuckoo_8_8_h__
-
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/xxhash.h>
-#include <vppinfra/cuckoo_debug.h>
-#include <vppinfra/cuckoo_common.h>
-
-#undef CLIB_CUCKOO_OPTIMIZE_PREFETCH
-#undef CLIB_CUCKOO_OPTIMIZE_UNROLL
-#undef CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH
-#define CLIB_CUCKOO_OPTIMIZE_PREFETCH 1
-#define CLIB_CUCKOO_OPTIMIZE_UNROLL 1
-#define CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH 1
-
-#if __SSE4_2__ && !defined (__i386__)
-#include <x86intrin.h>
-#endif
-
-/** 8 octet key, 8 octet key value pair */
-typedef struct
-{
- u64 key; /**< the key */
- u64 value; /**< the value */
-} clib_cuckoo_kv_8_8_t;
-
-/** Decide if a clib_cuckoo_kv_8_8_t instance is free
- @param v- pointer to the (key,value) pair
-*/
-always_inline int
-clib_cuckoo_kv_is_free_8_8 (const clib_cuckoo_kv_8_8_t * v)
-{
- if (v->key == ~0ULL && v->value == ~0ULL)
- return 1;
- return 0;
-}
-
-always_inline void
-clib_cuckoo_kv_set_free_8_8 (clib_cuckoo_kv_8_8_t * v)
-{
- clib_memset (v, 0xff, sizeof (*v));
-}
-
-/** Format a clib_cuckoo_kv_8_8_t instance
- @param s - u8 * vector under construction
- @param args (vararg) - the (key,value) pair to format
- @return s - the u8 * vector under construction
-*/
-always_inline u8 *
-format_cuckoo_kvp_8_8 (u8 * s, va_list * args)
-{
- clib_cuckoo_kv_8_8_t *v = va_arg (*args, clib_cuckoo_kv_8_8_t *);
-
- if (clib_cuckoo_kv_is_free_8_8 (v))
- {
- s = format (s, " -- empty -- ");
- }
- else
- {
- s = format (s, "key %llu value %llu", v->key, v->value);
- }
- return s;
-}
-
-always_inline u64
-clib_cuckoo_hash_8_8 (clib_cuckoo_kv_8_8_t * v)
-{
-#if defined(clib_crc32c_uses_intrinsics) && !defined (__i386__)
- return crc32_u64 (0, v->key);
-#else
- return clib_xxhash (v->key);
-#endif
-}
-
-/** Compare two clib_cuckoo_kv_8_8_t instances
- @param a - first key
- @param b - second key
-*/
-always_inline int
-clib_cuckoo_key_compare_8_8 (u64 a, u64 b)
-{
- return a == b;
-}
-
-#undef __included_cuckoo_template_h__
-#include <vppinfra/cuckoo_template.h>
-
-#endif /* __included_cuckoo_8_8_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_common.h b/src/vppinfra/cuckoo_common.h
deleted file mode 100644
index ea0fc30084b..00000000000
--- a/src/vppinfra/cuckoo_common.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- Copyright (c) 2017 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.
-*/
-
-/*
- * Note: to instantiate the template multiple times in a single file,
- * #undef __included_cuckoo_template_h__...
- */
-#ifndef __included_cuckoo_common_h__
-#define __included_cuckoo_common_h__
-
-#include <vppinfra/types.h>
-
-#define CLIB_CUCKOO_OPTIMIZE_PREFETCH 1
-#define CLIB_CUCKOO_OPTIMIZE_UNROLL 1
-#define CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH 1
-
-#define foreach_clib_cuckoo_error(F) \
- F (CLIB_CUCKOO_ERROR_SUCCESS, 0, "success") \
- F (CLIB_CUCKOO_ERROR_NOT_FOUND, -1, "object not found") \
- F (CLIB_CUCKOO_ERROR_AGAIN, -2, "object busy")
-
-typedef enum
-{
-#define F(n, v, s) n = v,
- foreach_clib_cuckoo_error (F)
-#undef F
-} clib_cuckoo_error_e;
-
-typedef struct
-{
- uword bucket1;
- uword bucket2;
- u8 reduced_hash;
-} clib_cuckoo_lookup_info_t;
-
-#endif /* __included_cuckoo_common_h__ */
-
-/** @endcond */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_debug.h b/src/vppinfra/cuckoo_debug.h
deleted file mode 100644
index eb236509935..00000000000
--- a/src/vppinfra/cuckoo_debug.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (c) 2017 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.
- */
-/**
- * @file
- * @brief cuckoo debugs
- */
-#ifndef __included_cuckoo_debug_h__
-#define __included_cuckoo_debug_h__
-
-/* controls debug counters */
-#define CLIB_CUCKOO_DEBUG_COUNTERS (0)
-
-/* controls debug prints */
-#define CLIB_CUCKOO_DEBUG (0)
-
-/* controls garbage collection related debug prints */
-#define CLIB_CUCKOO_DEBUG_GC (0)
-
-#if CLIB_CUCKOO_DEBUG
-#define CLIB_CUCKOO_DEBUG_FILE_DEF \
- static const char *__file = NULL; \
- { \
- __file = strrchr (__FILE__, '/'); \
- if (__file) \
- { \
- ++__file; \
- } \
- else \
- { \
- __file = __FILE__; \
- } \
- }
-
-#define CLIB_CUCKOO_DBG(fmt, ...) \
- do \
- { \
- CLIB_CUCKOO_DEBUG_FILE_DEF \
- static u8 *_s = NULL; \
- _s = format (_s, "DBG:%s:%d:%s():" fmt, __file, __LINE__, __func__, \
- ##__VA_ARGS__); \
- printf ("%.*s\n", vec_len (_s), _s); \
- vec_reset_length (_s); \
- } \
- while (0);
-
-#define CLIB_CUCKOO_ERR(fmt, ...) \
- do \
- { \
- CLIB_CUCKOO_DEBUG_FILE_DEF \
- static u8 *_s = NULL; \
- _s = format (_s, "ERR:%s:%d:%s():" fmt, __file, __LINE__, __func__, \
- ##__VA_ARGS__); \
- printf ("%.*s\n", vec_len (_s), _s); \
- vec_reset_length (_s); \
- } \
- while (0);
-
-#else
-#define CLIB_CUCKOO_DBG(...)
-#define CLIB_CUCKOO_ERR(...)
-#endif
-
-#endif /* __included_cuckoo_debug_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_template.c b/src/vppinfra/cuckoo_template.c
deleted file mode 100644
index 8cd2a2be2b5..00000000000
--- a/src/vppinfra/cuckoo_template.c
+++ /dev/null
@@ -1,1002 +0,0 @@
-/*
- * Copyright (c) 2017 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.
- */
-
-/*
- * cuckoo hash implementation based on paper
- * 'Algorithmic Improvements for Fast Concurrent Cuckoo Hashing'
- * by Xiaozhou Li, David G. Andersen, Michael Kaminsky, Michael J. Freedman
- * and their libcuckoo implementation (https://github.com/efficient/libcuckoo)
- */
-
-#include <vppinfra/vec.h>
-
-int CV (clib_cuckoo_search) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * search_v,
- CVT (clib_cuckoo_kv) * return_v)
-{
- CVT (clib_cuckoo_kv) tmp = *search_v;
- int rv = CV (clib_cuckoo_search_inline) (h, &tmp);
- if (CLIB_CUCKOO_ERROR_SUCCESS == rv)
- {
- *return_v = tmp;
- }
- return rv;
-}
-
-static
-CVT (clib_cuckoo_bucket) *
-CV (clib_cuckoo_bucket_at_index) (CVT (clib_cuckoo) * h, uword bucket)
-{
- return vec_elt_at_index (h->buckets, bucket);
-}
-
-static uword CV (clib_cuckoo_get_nbuckets) (CVT (clib_cuckoo) * h)
-{
- return vec_len (h->buckets);
-}
-
-static inline uword
-CV (clib_cuckoo_elt_in_bucket_to_offset) (CVT (clib_cuckoo_bucket) * b,
- CVT (clib_cuckoo_kv) * e)
-{
- ASSERT (e >= b->elts);
- ASSERT (e <= &b->elts[sizeof (b->elts) / sizeof (b->elts[0]) - 1]);
- return e - b->elts;
-}
-
-u8 *CV (format_cuckoo_elt) (u8 * s, va_list * args)
-{
- CVT (clib_cuckoo_kv) * elt = va_arg (*args, CVT (clib_cuckoo_kv) *);
- unsigned reduced_hash = va_arg (*args, unsigned);
- if (CV (clib_cuckoo_kv_is_free) (elt))
- {
- s = format (s, "[ -- empty -- ]");
- }
- else
- {
- s = format (s, "[%U, reduced hash: %u]", CV (format_cuckoo_kvp), elt,
- reduced_hash);
- }
- return s;
-}
-
-u8 *CV (format_cuckoo_bucket) (u8 * s, va_list * args)
-{
- CVT (clib_cuckoo_bucket) * bucket =
- va_arg (*args, CVT (clib_cuckoo_bucket) *);
- int i = 0;
-
- /* *INDENT-OFF* */
- clib_cuckoo_bucket_foreach_idx (i)
- {
- CVT (clib_cuckoo_kv) *elt = bucket->elts + i;
- s = format (s, "bucket %p, offset %d: %U\n", bucket, i,
- CV (format_cuckoo_elt), elt, bucket->reduced_hashes[i]);
- }
- /* *INDENT-ON* */
- clib_cuckoo_bucket_aux_t aux = bucket->aux;
- s = format (s, "version: %lld, use count: %d\n",
- clib_cuckoo_bucket_aux_get_version (aux),
- clib_cuckoo_bucket_aux_get_use_count (aux));
- return s;
-}
-
-#if CLIB_CUCKOO_DEBUG
-static void CV (clib_cuckoo_deep_self_check) (CVT (clib_cuckoo) * h)
-{
- CVT (clib_cuckoo_bucket) * bucket;
- uword bucket_idx = 0;
- /* *INDENT-OFF* */
- clib_cuckoo_foreach_bucket (bucket, h, {
- int i = 0;
- int used = 0;
- clib_cuckoo_bucket_foreach_idx (i)
- {
- CVT (clib_cuckoo_kv) *elt = bucket->elts + i;
- if (!CV (clib_cuckoo_kv_is_free) (elt))
- {
- u64 hash = CV (clib_cuckoo_hash) (elt);
- clib_cuckoo_lookup_info_t lookup =
- CV (clib_cuckoo_calc_lookup) (h->buckets, hash);
- CVT (clib_cuckoo_kv) kv = *elt;
- int rv = CV (clib_cuckoo_search) (h, &kv, &kv);
- if (CLIB_CUCKOO_ERROR_SUCCESS != rv)
- {
- CLIB_CUCKOO_DBG ("Search for elt `%U' failed!",
- CV (format_cuckoo_elt), elt,
- bucket->reduced_hashes[i]);
- CLIB_CUCKOO_DBG ("%U", CV (format_cuckoo), h, 1);
- }
- ASSERT (lookup.bucket1 == bucket_idx || lookup.bucket2 == bucket_idx);
- ASSERT (CLIB_CUCKOO_ERROR_SUCCESS == rv);
- ++used;
- }
- }
- clib_cuckoo_bucket_aux_t aux = bucket->aux;
- ASSERT (used == clib_cuckoo_bucket_aux_get_use_count (aux));
- ++bucket_idx;
- });
- /* *INDENT-ON* */
- // CLIB_CUCKOO_DBG ("Deep self check passed: %U", CV (format_cuckoo), h);
-}
-
-#define CLIB_CUCKOO_DEEP_SELF_CHECK(h) CV (clib_cuckoo_deep_self_check) (h)
-#define CLIB_CUCKOO_ASSERT_BUCKET_SORTED(b) \
- do \
- { \
- int i; \
- int min_free = CLIB_CUCKOO_KVP_PER_BUCKET; \
- int max_used = 0; \
- clib_cuckoo_bucket_foreach_idx (i) \
- { \
- if (!CV (clib_cuckoo_kv_is_free) (b->elts + i)) \
- { \
- max_used = i; \
- } \
- if (CV (clib_cuckoo_kv_is_free) (b->elts + \
- (CLIB_CUCKOO_KVP_PER_BUCKET - i))) \
- { \
- min_free = i; \
- } \
- } \
- ASSERT (min_free > max_used); \
- } \
- while (0)
-
-#else
-#define CLIB_CUCKOO_DEEP_SELF_CHECK(h)
-#define CLIB_CUCKOO_ASSERT_BUCKET_SORTED(b)
-#endif
-
-void CV (clib_cuckoo_init) (CVT (clib_cuckoo) * h, const char *name,
- uword nbuckets,
- void (*garbage_callback) (CVT (clib_cuckoo) *,
- void *),
- void *garbage_ctx)
-{
- uword log2_nbuckets = max_log2 (nbuckets);
- nbuckets = 1ULL << (log2_nbuckets);
- CLIB_CUCKOO_DBG ("New cuckoo, adjusted nbuckets %wu", nbuckets);
- CVT (clib_cuckoo_bucket) * buckets = NULL;
- vec_validate_aligned (buckets, nbuckets - 1, CLIB_CACHE_LINE_BYTES);
- ASSERT (nbuckets == vec_len (buckets));
- h->buckets = buckets;
- clib_spinlock_init (&h->writer_lock);
- /* mark all elements free ... */
- CVT (clib_cuckoo_bucket) * bucket;
- /* *INDENT-OFF* */
- clib_cuckoo_foreach_bucket (
- bucket, h, { clib_memset (bucket->elts, 0xff, sizeof (bucket->elts)); });
- /* *INDENT-ON* */
- h->name = name;
- h->garbage_callback = garbage_callback;
- h->garbage_ctx = garbage_ctx;
-}
-
-void CV (clib_cuckoo_free) (CVT (clib_cuckoo) * h)
-{
- clib_memset (h, 0, sizeof (*h));
-}
-
-static clib_cuckoo_bucket_aux_t
-CV (clib_cuckoo_bucket_version_bump_and_lock) (CVT (clib_cuckoo_bucket) * b)
-{
- clib_cuckoo_bucket_aux_t aux = b->aux;
- u64 version = clib_cuckoo_bucket_aux_get_version (aux);
- u8 use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- u8 writer_flag = clib_cuckoo_bucket_aux_get_writer_flag (aux);
- ASSERT (0 == writer_flag);
- aux = clib_cuckoo_bucket_aux_pack (version + 1, use_count, 1);
- b->aux = aux;
- return aux;
-}
-
-static void CV (clib_cuckoo_bucket_unlock) (CVT (clib_cuckoo_bucket) * b,
- clib_cuckoo_bucket_aux_t aux)
-{
- u64 version = clib_cuckoo_bucket_aux_get_version (aux);
- u8 use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- u8 writer_flag = clib_cuckoo_bucket_aux_get_writer_flag (aux);
- ASSERT (1 == writer_flag);
- aux = clib_cuckoo_bucket_aux_pack (version, use_count, 0);
- b->aux = aux;
-}
-
-#define CLIB_CUCKOO_DEBUG_PATH (1)
-#define CLIB_CUCKOO_DEBUG_PATH_DETAIL (0)
-
-#if CLIB_CUCKOO_DEBUG && CLIB_CUCKOO_DEBUG_PATH
-static u8 *CV (format_cuckoo_path) (u8 * s, va_list * args);
-#endif
-
-static clib_cuckoo_path_t *CV (clib_cuckoo_path_get) (CVT (clib_cuckoo) * h)
-{
- clib_cuckoo_path_t *path;
- pool_get (h->paths, path);
- clib_memset (path, 0, sizeof (*path));
-#if CLIB_CUCKOO_DEBUG_PATH_DETAIL
- CLIB_CUCKOO_DBG ("Get path @%lu", (long unsigned) (path - h->paths));
-#endif
- return path;
-}
-
-static void CV (clib_cuckoo_path_put) (CVT (clib_cuckoo) * h, uword path_idx)
-{
- clib_cuckoo_path_t *path = pool_elt_at_index (h->paths, path_idx);
-#if CLIB_CUCKOO_DEBUG_PATH_DETAIL
- CLIB_CUCKOO_DBG ("Put path @%lu", (long unsigned) (path - h->paths));
-#endif
- pool_put (h->paths, path);
-}
-
-static clib_cuckoo_path_t *CV (clib_cuckoo_path_begin) (CVT (clib_cuckoo) * h,
- uword bucket,
- uword next_offset)
-{
- ASSERT (next_offset < CLIB_CUCKOO_KVP_PER_BUCKET);
- clib_cuckoo_path_t *new_path = CV (clib_cuckoo_path_get) (h);
- new_path->length = 1;
- new_path->data = next_offset;
- new_path->start = bucket;
- new_path->bucket = bucket;
-#if CLIB_CUCKOO_DEBUG_PATH
- CLIB_CUCKOO_DBG ("Create new path @%wu, length: %u data: %llu bucket: %wu "
- "next-offset: %wu",
- new_path - h->paths, new_path->length,
- (long long unsigned) new_path->data, new_path->bucket,
- next_offset);
-#endif
- return new_path;
-}
-
-/**
- * create a new path based on existing path extended by adding a bucket
- * and offset
- */
-static uword CV (clib_cuckoo_path_extend) (CVT (clib_cuckoo) * h,
- uword path_idx, uword bucket,
- unsigned offset)
-{
- ASSERT (offset < CLIB_CUCKOO_KVP_PER_BUCKET);
- clib_cuckoo_path_t *new_path = CV (clib_cuckoo_path_get) (h);
- uword new_path_idx = new_path - h->paths;
- clib_cuckoo_path_t *path = pool_elt_at_index (h->paths, path_idx);
- new_path->start = path->start;
- new_path->length = path->length + 1;
- new_path->data = (path->data << CLIB_CUCKOO_LOG2_KVP_PER_BUCKET) + offset;
- new_path->bucket = bucket;
-#if CLIB_CUCKOO_DEBUG_PATH
- CLIB_CUCKOO_DBG ("Extend path @%wu, new path @%wu, %U", path_idx,
- new_path_idx, CV (format_cuckoo_path), h, new_path_idx);
-#endif
- return new_path_idx;
-}
-
-/** return the offset of the last element in the path */
-static uword CV (clib_cuckoo_path_peek_offset) (const clib_cuckoo_path_t *
- path)
-{
- ASSERT (path->length > 0);
- uword mask = (1 << CLIB_CUCKOO_LOG2_KVP_PER_BUCKET) - 1;
- uword offset = path->data & mask;
- return offset;
-}
-
-static
-CVT (clib_cuckoo_kv) *
-CV (clib_cuckoo_bucket_find_empty) (CVT (clib_cuckoo_bucket) * bucket)
-{
- clib_cuckoo_bucket_aux_t aux = bucket->aux;
- u8 use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- if (use_count < CLIB_CUCKOO_KVP_PER_BUCKET)
- {
- return bucket->elts + use_count;
- }
- return NULL;
-}
-
-/**
- * walk the cuckoo path two ways,
- * first backwards, extracting offsets,
- * then forward, extracting buckets
- *
- * buckets and offsets are arrays filled with elements extracted from path
- * the arrays must be able to contain CLIB_CUCKOO_BFS_MAX_PATH_LENGTH elements
- */
-static void
-clib_cuckoo_path_walk (CVT (clib_cuckoo) * h, uword path_idx,
- uword * buckets, uword * offsets)
-{
- clib_cuckoo_path_t *path = pool_elt_at_index (h->paths, path_idx);
- ASSERT (path->length > 0);
- u64 data = path->data;
- uword mask = (1 << CLIB_CUCKOO_LOG2_KVP_PER_BUCKET) - 1;
- uword i;
- for (i = path->length; i > 0; --i)
- {
- uword offset = data & mask;
- offsets[i - 1] = offset;
- data >>= CLIB_CUCKOO_LOG2_KVP_PER_BUCKET;
- }
- buckets[0] = path->start;
- for (i = 1; i < path->length; ++i)
- {
- CVT (clib_cuckoo_bucket) * b =
- CV (clib_cuckoo_bucket_at_index) (h, buckets[i - 1]);
- buckets[i] =
- clib_cuckoo_get_other_bucket (CV (clib_cuckoo_get_nbuckets) (h),
- buckets[i - 1],
- b->reduced_hashes[offsets[i - 1]]);
- }
-}
-
-#if CLIB_CUCKOO_DEBUG && CLIB_CUCKOO_DEBUG_PATH
-static u8 *CV (format_cuckoo_path) (u8 * s, va_list * args)
-{
- CVT (clib_cuckoo) * h = va_arg (*args, CVT (clib_cuckoo) *);
- uword path_idx = va_arg (*args, uword);
- clib_cuckoo_path_t *p = pool_elt_at_index (h->paths, path_idx);
- uword buckets[CLIB_CUCKOO_BFS_MAX_PATH_LENGTH];
- uword offsets[CLIB_CUCKOO_BFS_MAX_PATH_LENGTH];
- clib_cuckoo_path_walk (h, path_idx, buckets, offsets);
- s = format (s, "length %u: ", p->length);
- for (uword i = p->length - 1; i > 0; --i)
- {
- s = format (s, "%wu[%wu]->", buckets[i], offsets[i]);
- }
- if (p->length)
- {
- s = format (s, "%wu[%wu]", buckets[0], offsets[0]);
- }
- return s;
-}
-#endif
-
-/*
- * perform breadth-first search in the cuckoo hash, finding the closest
- * empty slot, i.e. one which requires minimum swaps to move it
- * to one of the buckets provided
- */
-static int CV (clib_cuckoo_find_empty_slot_bfs) (CVT (clib_cuckoo) * h,
- clib_cuckoo_lookup_info_t *
- lookup, uword * path_idx_out,
- uword * found_bucket,
- CVT (clib_cuckoo_kv) *
- *found_elt)
-{
- uword *tail;
- ASSERT (!vec_len (h->bfs_search_queue));
- clib_cuckoo_path_t *tmp;
- pool_flush (tmp, h->paths,);
- int rv = CLIB_CUCKOO_ERROR_AGAIN;
- int counter = 0;
- /* start by creating paths starting in each of the buckets ... */
- vec_add2 (h->bfs_search_queue, tail, CLIB_CUCKOO_KVP_PER_BUCKET);
- int i;
- for (i = 0; i < CLIB_CUCKOO_KVP_PER_BUCKET; ++i)
- {
- clib_cuckoo_path_t *path =
- CV (clib_cuckoo_path_begin) (h, lookup->bucket1, i);
- tail[i] = path - h->paths;
- }
- if (lookup->bucket1 != lookup->bucket2)
- {
- vec_add2 (h->bfs_search_queue, tail, CLIB_CUCKOO_KVP_PER_BUCKET);
- for (i = 0; i < CLIB_CUCKOO_KVP_PER_BUCKET; ++i)
- {
- clib_cuckoo_path_t *path =
- CV (clib_cuckoo_path_begin) (h, lookup->bucket2, i);
- tail[i] = path - h->paths;
- }
- }
- while (1)
- {
- if (counter >= CLIB_CUCKOO_BFS_MAX_STEPS)
- {
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->steps_exceeded;
-#endif
- break;
- }
- if (counter >= vec_len (h->bfs_search_queue))
- {
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->bfs_queue_emptied;
-#endif
- break;
- }
- const uword path_idx = vec_elt (h->bfs_search_queue, counter);
- const clib_cuckoo_path_t *path = pool_elt_at_index (h->paths, path_idx);
-#if CLIB_CUCKOO_DEBUG_PATH
- CLIB_CUCKOO_DBG ("Examine path @%wu: %U", path_idx,
- CV (format_cuckoo_path), h, path_idx);
-#endif
- /* TODO prefetch ? */
- /* search the alternative bucket for free space */
- int offset = CV (clib_cuckoo_path_peek_offset) (path);
- CVT (clib_cuckoo_bucket) * bucket =
- CV (clib_cuckoo_bucket_at_index) (h, path->bucket);
- uword other_bucket =
- clib_cuckoo_get_other_bucket (CV (clib_cuckoo_get_nbuckets) (h),
- path->bucket,
- bucket->reduced_hashes[offset]);
- CLIB_CUCKOO_DBG
- ("Path ends in bucket %wu, offset #%wu, other bucket is %wu",
- path->bucket, CV (clib_cuckoo_path_peek_offset) (path),
- other_bucket);
- if (path->bucket != other_bucket)
- {
- if ((*found_elt =
- CV (clib_cuckoo_bucket_find_empty) (CV
- (clib_cuckoo_bucket_at_index)
- (h, other_bucket))))
- {
- /* found empty element */
- *found_bucket = other_bucket;
- *path_idx_out = path_idx;
- rv = CLIB_CUCKOO_ERROR_SUCCESS;
-#if CLIB_CUCKOO_DEBUG_PATH
- CLIB_CUCKOO_DBG ("Bucket with empty slot:\n%U",
- CV (format_cuckoo_bucket),
- CV (clib_cuckoo_bucket_at_index) (h,
- other_bucket));
-#endif
- goto out;
- }
- /* extend the current path with possible next buckets and add to
- * queue */
- if (path->length < CLIB_CUCKOO_BFS_MAX_PATH_LENGTH &&
- vec_len (h->bfs_search_queue) < CLIB_CUCKOO_BFS_MAX_STEPS)
- {
- uword *tail;
- vec_add2 (h->bfs_search_queue, tail,
- CLIB_CUCKOO_KVP_PER_BUCKET);
- for (i = 0; i < CLIB_CUCKOO_KVP_PER_BUCKET; ++i)
- {
- uword new_path_idx =
- CV (clib_cuckoo_path_extend) (h, path_idx, other_bucket,
- i);
- tail[i] = new_path_idx;
- }
- }
- }
- else
- {
- CLIB_CUCKOO_DBG ("Discard path @%wu, loop detected", path_idx);
- }
- /* done with this path - put back to pool for later reuse */
- CV (clib_cuckoo_path_put) (h, path_idx);
- ++counter;
- }
-out:
- vec_reset_length (h->bfs_search_queue);
- return rv;
-}
-
-static void CV (clib_cuckoo_swap_elts_in_bucket) (CVT (clib_cuckoo_bucket) *
- b, uword e1, uword e2)
-{
- CVT (clib_cuckoo_kv) kv;
- clib_memcpy (&kv, b->elts + e1, sizeof (kv));
- clib_memcpy (b->elts + e1, b->elts + e2, sizeof (kv));
- clib_memcpy (b->elts + e2, &kv, sizeof (kv));
- u8 reduced_hash = b->reduced_hashes[e1];
- b->reduced_hashes[e1] = b->reduced_hashes[e2];
- b->reduced_hashes[e2] = reduced_hash;
-}
-
-static void CV (clib_cuckoo_bucket_tidy) (CVT (clib_cuckoo_bucket) * b)
-{
- int i = 0;
- int j = CLIB_CUCKOO_KVP_PER_BUCKET - 1;
- while (i != j)
- {
- int min_free = i;
- int max_used = j;
- while (!CV (clib_cuckoo_kv_is_free) (&b->elts[min_free]))
- {
- ++min_free;
- }
- while (CV (clib_cuckoo_kv_is_free) (&b->elts[max_used]))
- {
- --max_used;
- }
- if (min_free < max_used)
- {
- CV (clib_cuckoo_swap_elts_in_bucket) (b, min_free, max_used);
- i = min_free + 1;
- j = max_used - 1;
- }
- else
- {
- break;
- }
- }
-}
-
-static void CV (clib_cuckoo_free_locked_elt) (CVT (clib_cuckoo_kv) * elt)
-{
- /*
- * FIXME - improve performance by getting rid of this clib_memset - make all
- * functions in this file not rely on clib_cuckoo_kv_is_free but instead
- * take use_count into account */
- clib_memset (elt, 0xff, sizeof (*elt));
-}
-
-static void CV (clib_cuckoo_free_elt_in_bucket) (CVT (clib_cuckoo_bucket) * b,
- CVT (clib_cuckoo_kv) * elt)
-{
- clib_cuckoo_bucket_aux_t aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (b);
- int use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- int offset = elt - b->elts;
- ASSERT (offset < use_count);
- CV (clib_cuckoo_free_locked_elt) (elt);
- if (offset != use_count - 1)
- {
- CV (clib_cuckoo_bucket_tidy) (b);
- }
- aux = clib_cuckoo_bucket_aux_set_use_count (aux, use_count - 1);
- CV (clib_cuckoo_bucket_unlock) (b, aux);
-}
-
-static void CV (clib_cuckoo_set_locked_elt) (CVT (clib_cuckoo_bucket) * b,
- CVT (clib_cuckoo_kv) * elt,
- CVT (clib_cuckoo_kv) * kvp,
- u8 reduced_hash)
-{
- int offset = CV (clib_cuckoo_elt_in_bucket_to_offset) (b, elt);
- clib_memcpy (elt, kvp, sizeof (*elt));
- b->reduced_hashes[offset] = reduced_hash;
- CLIB_CUCKOO_DBG ("Set bucket %p, offset %d, %U", b, offset,
- CV (format_cuckoo_elt), elt, b->reduced_hashes[offset]);
-}
-
-static void CV (clib_cuckoo_set_elt) (CVT (clib_cuckoo_bucket) * b,
- CVT (clib_cuckoo_kv) * elt,
- CVT (clib_cuckoo_kv) * kvp,
- u8 reduced_hash)
-{
- clib_cuckoo_bucket_aux_t aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (b);
- CV (clib_cuckoo_set_locked_elt) (b, elt, kvp, reduced_hash);
- CV (clib_cuckoo_bucket_unlock) (b, aux);
-}
-
-static int CV (clib_cuckoo_add_slow) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * kvp,
- clib_cuckoo_lookup_info_t * lookup,
- u8 reduced_hash)
-{
- uword path_idx;
- uword empty_bucket_idx;
- CVT (clib_cuckoo_kv) * empty_elt;
- int rv = CV (clib_cuckoo_find_empty_slot_bfs) (h, lookup, &path_idx,
- &empty_bucket_idx,
- &empty_elt);
- if (CLIB_CUCKOO_ERROR_SUCCESS == rv)
- {
- uword buckets[CLIB_CUCKOO_BFS_MAX_PATH_LENGTH];
- uword offsets[CLIB_CUCKOO_BFS_MAX_PATH_LENGTH];
- clib_cuckoo_path_walk (h, path_idx, buckets, offsets);
- /*
- * walk back the path, moving the free element forward to one of our
- * buckets ...
- */
- clib_cuckoo_path_t *path = pool_elt_at_index (h->paths, path_idx);
- CVT (clib_cuckoo_bucket) * empty_bucket =
- CV (clib_cuckoo_bucket_at_index) (h, empty_bucket_idx);
- int i;
- for (i = path->length - 1; i >= 0; --i)
- {
- /* copy the key-value in path to the bucket with empty element */
- CVT (clib_cuckoo_bucket) * b =
- CV (clib_cuckoo_bucket_at_index) (h, buckets[i]);
- CVT (clib_cuckoo_kv) * elt = b->elts + offsets[i];
- clib_cuckoo_bucket_aux_t empty_aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (empty_bucket);
- CV (clib_cuckoo_set_locked_elt)
- (empty_bucket, empty_elt, elt, b->reduced_hashes[elt - b->elts]);
- if (i == path->length - 1)
- {
- /* we only need to increase the use count for the bucket with
- * free element - all other buckets' use counts won't change */
- empty_aux = clib_cuckoo_bucket_aux_set_use_count (empty_aux,
- clib_cuckoo_bucket_aux_get_use_count
- (empty_aux) +
- 1);
- }
- CV (clib_cuckoo_bucket_unlock) (empty_bucket, empty_aux);
- /*
- * the element now exists in both places - in the previously empty
- * element and in its original bucket - we can now safely overwrite
- * the element in the original bucket with previous element in path
- * without loosing data (and we don't need to modify the use count)
- */
- empty_bucket = b;
- empty_elt = elt;
- }
- /* now we have a place to put the kvp in ... */
- CV (clib_cuckoo_set_elt) (empty_bucket, empty_elt, kvp, reduced_hash);
- CLIB_CUCKOO_DBG ("Slow insert success, bucket: %p\n%U", empty_bucket,
- CV (format_cuckoo_bucket), empty_bucket);
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->slow_adds;
-#endif
- }
- return rv;
-}
-
-static int CV (clib_cuckoo_add_fast) (CVT (clib_cuckoo) * h,
- clib_cuckoo_lookup_info_t * lookup,
- CVT (clib_cuckoo_kv) * kvp,
- u8 reduced_hash)
-{
- CVT (clib_cuckoo_kv) * elt;
- CVT (clib_cuckoo_bucket) * bucket1 =
- CV (clib_cuckoo_bucket_at_index) (h, lookup->bucket1);
- if ((elt = CV (clib_cuckoo_bucket_find_empty) (bucket1)))
- {
- clib_cuckoo_bucket_aux_t aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (bucket1);
- CV (clib_cuckoo_set_locked_elt) (bucket1, elt, kvp, reduced_hash);
- aux =
- clib_cuckoo_bucket_aux_set_use_count (aux,
- clib_cuckoo_bucket_aux_get_use_count
- (aux) + 1);
- CV (clib_cuckoo_bucket_unlock) (bucket1, aux);
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->fast_adds;
-#endif
- return CLIB_CUCKOO_ERROR_SUCCESS;
- }
- CVT (clib_cuckoo_bucket) * bucket2 =
- CV (clib_cuckoo_bucket_at_index) (h, lookup->bucket2);
- if ((elt =
- CV (clib_cuckoo_bucket_find_empty) (CV (clib_cuckoo_bucket_at_index)
- (h, lookup->bucket2))))
- {
- clib_cuckoo_bucket_aux_t aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (bucket2);
- CV (clib_cuckoo_set_locked_elt) (bucket2, elt, kvp, reduced_hash);
- aux =
- clib_cuckoo_bucket_aux_set_use_count (aux,
- clib_cuckoo_bucket_aux_get_use_count
- (aux) + 1);
- CV (clib_cuckoo_bucket_unlock) (bucket2, aux);
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->fast_adds;
-#endif
- return CLIB_CUCKOO_ERROR_SUCCESS;
- }
- return CLIB_CUCKOO_ERROR_AGAIN;
-}
-
-/**
- * perform garbage collection
- *
- * this function assumes there is no other thread touching the cuckoo hash,
- * not even a reader, it's meant to be called from main thread
- * in a stop-the-world situation
- */
-void CV (clib_cuckoo_garbage_collect) (CVT (clib_cuckoo) * h)
-{
- CLIB_MEMORY_BARRIER ();
- CVT (clib_cuckoo_bucket) * *b;
- /* *INDENT-OFF* */
- vec_foreach (b, h->to_be_freed)
- {
- if (*b == h->buckets)
- {
- continue;
- }
-#if CLIB_CUCKOO_DEBUG_GC
- fformat (stdout, "gc: free %p\n", *b);
-#endif
- vec_free (*b);
- }
- /* *INDENT-ON* */
- vec_free (h->to_be_freed);
- CLIB_MEMORY_BARRIER ();
-}
-
-/**
- * expand and rehash a cuckoo hash
- *
- * 1. double the size of the hash table
- * 2. move items to new locations derived from the new size
- */
-static void CV (clib_cuckoo_rehash) (CVT (clib_cuckoo) * h)
-{
- CVT (clib_cuckoo_bucket) * old = h->buckets;
- uword old_nbuckets = vec_len (old);
- uword new_nbuckets = 2 * old_nbuckets;
- CVT (clib_cuckoo_bucket) * new =
- vec_dup_aligned (old, CLIB_CACHE_LINE_BYTES);
- /* allocate space */
- vec_validate_aligned (new, new_nbuckets - 1, CLIB_CACHE_LINE_BYTES);
- ASSERT (new_nbuckets == vec_len (new));
- /* store old pointer in to-be-freed list */
- vec_add1 (h->to_be_freed, old);
- /* mark new elements as free */
- CVT (clib_cuckoo_bucket) * bucket;
- for (bucket = new + old_nbuckets; bucket < vec_end (new); ++bucket)
- {
- clib_memset (bucket->elts, 0xff, sizeof (bucket->elts));
- }
- /*
- * this for loop manipulates the new (unseen) memory, so no locks
- * are required here
- */
- uword old_bucket_idx;
- for (old_bucket_idx = 0; old_bucket_idx < old_nbuckets; ++old_bucket_idx)
- {
- /* items in old bucket might be moved to new bucket */
- uword new_bucket_idx = old_bucket_idx + old_nbuckets;
- CVT (clib_cuckoo_bucket) * old_bucket = new + old_bucket_idx;
- CVT (clib_cuckoo_bucket) * new_bucket = new + new_bucket_idx;
- int i = 0;
- int moved = 0;
- clib_cuckoo_bucket_aux_t aux = old_bucket->aux;
- for (i = 0; i < clib_cuckoo_bucket_aux_get_use_count (aux); ++i)
- {
- CVT (clib_cuckoo_kv) * elt = old_bucket->elts + i;
- u64 hash = CV (clib_cuckoo_hash) (elt);
- clib_cuckoo_lookup_info_t old_lookup =
- CV (clib_cuckoo_calc_lookup) (old, hash);
- clib_cuckoo_lookup_info_t new_lookup =
- CV (clib_cuckoo_calc_lookup) (new, hash);
- if ((old_bucket_idx == old_lookup.bucket1 &&
- new_bucket_idx == new_lookup.bucket1) ||
- (old_bucket_idx == old_lookup.bucket2 &&
- new_bucket_idx == new_lookup.bucket2))
- {
- /* move the item to new bucket */
- CVT (clib_cuckoo_kv) * empty_elt = new_bucket->elts + moved;
- ASSERT (empty_elt);
- CV (clib_cuckoo_set_locked_elt)
- (new_bucket, empty_elt, elt, old_bucket->reduced_hashes[i]);
- CV (clib_cuckoo_free_locked_elt) (elt);
- ++moved;
- }
- }
- if (moved)
- {
- CV (clib_cuckoo_bucket_tidy) (old_bucket);
- aux =
- clib_cuckoo_bucket_aux_set_use_count (aux,
- clib_cuckoo_bucket_aux_get_use_count
- (aux) - moved);
- old_bucket->aux = aux;
- aux = new_bucket->aux;
- aux =
- clib_cuckoo_bucket_aux_set_use_count (aux,
- clib_cuckoo_bucket_aux_get_use_count
- (aux) + moved);
- new_bucket->aux = aux;
- }
- }
- h->buckets = new;
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- ++h->rehashes;
-#endif
- h->garbage_callback (h, h->garbage_ctx);
-}
-
-static int CV (clib_cuckoo_bucket_search_internal) (CVT (clib_cuckoo) * h,
- uword bucket,
- CVT (clib_cuckoo_kv) *
- kvp,
- CVT (clib_cuckoo_kv) *
- *found)
-{
- CVT (clib_cuckoo_bucket) * b = CV (clib_cuckoo_bucket_at_index) (h, bucket);
- int i;
- /* *INDENT-OFF* */
- clib_cuckoo_bucket_foreach_idx_unrolled (i, {
- CVT (clib_cuckoo_kv) *elt = &b->elts[i];
- if (CV (clib_cuckoo_key_compare) (elt->key, kvp->key))
- {
- *found = elt;
- return CLIB_CUCKOO_ERROR_SUCCESS;
- }
- });
- /* *INDENT-ON* */
- return CLIB_CUCKOO_ERROR_NOT_FOUND;
-}
-
-int CV (clib_cuckoo_add_del) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * kvp, int is_add,
- int dont_overwrite)
-{
- CLIB_CUCKOO_DBG ("%s %U", is_add ? "Add" : "Del", CV (format_cuckoo_kvp),
- kvp);
- clib_cuckoo_lookup_info_t lookup;
- u64 hash = CV (clib_cuckoo_hash) (kvp);
- u8 reduced_hash = clib_cuckoo_reduce_hash (hash);
- clib_spinlock_lock (&h->writer_lock);
-restart:
- lookup = CV (clib_cuckoo_calc_lookup) (h->buckets, hash);
- CVT (clib_cuckoo_bucket) * b =
- CV (clib_cuckoo_bucket_at_index) (h, lookup.bucket1);
- CVT (clib_cuckoo_kv) * found;
- int rv =
- CV (clib_cuckoo_bucket_search_internal) (h, lookup.bucket1, kvp, &found);
- if (CLIB_CUCKOO_ERROR_SUCCESS != rv)
- {
- ASSERT (CLIB_CUCKOO_ERROR_NOT_FOUND == rv);
- b = CV (clib_cuckoo_bucket_at_index) (h, lookup.bucket2);
- rv = CV (clib_cuckoo_bucket_search_internal) (h, lookup.bucket2, kvp,
- &found);
- }
- if (CLIB_CUCKOO_ERROR_SUCCESS == rv)
- {
- if (is_add)
- {
- if (dont_overwrite)
- {
- CLIB_CUCKOO_DBG ("Refused replacing existing %U",
- CV (format_cuckoo_elt), found,
- b->reduced_hashes[found - b->elts]);
- rv = CLIB_CUCKOO_ERROR_AGAIN;
- }
- else
- {
- /* prevent readers reading this bucket while we switch the values */
- clib_cuckoo_bucket_aux_t aux =
- CV (clib_cuckoo_bucket_version_bump_and_lock) (b);
- clib_memcpy (&found->value, &kvp->value, sizeof (found->value));
- CLIB_CUCKOO_DBG ("Replaced existing %U", CV (format_cuckoo_elt),
- found, b->reduced_hashes[found - b->elts]);
- CV (clib_cuckoo_bucket_unlock) (b, aux);
- rv = CLIB_CUCKOO_ERROR_SUCCESS;
- }
- }
- else
- {
- CV (clib_cuckoo_free_elt_in_bucket) (b, found);
- rv = CLIB_CUCKOO_ERROR_SUCCESS;
- }
- CLIB_CUCKOO_DEEP_SELF_CHECK (h);
- goto unlock;
- }
- if (!is_add)
- {
- CLIB_CUCKOO_DBG ("%U not present in table", CV (format_cuckoo_kvp),
- kvp);
- rv = CLIB_CUCKOO_ERROR_NOT_FOUND;
- goto unlock;
- }
- /* from this point on, it's add code only */
- ASSERT (CLIB_CUCKOO_ERROR_NOT_FOUND == rv);
- /* fast path: try to search for unoccupied slot in one of the buckets */
- rv = CV (clib_cuckoo_add_fast) (h, &lookup, kvp, reduced_hash);
- CLIB_CUCKOO_DEEP_SELF_CHECK (h);
- if (CLIB_CUCKOO_ERROR_SUCCESS != rv)
- {
- CLIB_CUCKOO_DBG
- ("Fast insert failed, bucket 1: %wu, bucket 2: %wu\n%U%U",
- lookup.bucket1, lookup.bucket2, CV (format_cuckoo_bucket),
- CV (clib_cuckoo_bucket_at_index) (h, lookup.bucket1),
- CV (format_cuckoo_bucket),
- CV (clib_cuckoo_bucket_at_index) (h, lookup.bucket2));
- /* slow path */
- rv = CV (clib_cuckoo_add_slow) (h, kvp, &lookup, reduced_hash);
- CLIB_CUCKOO_DEEP_SELF_CHECK (h);
- if (CLIB_CUCKOO_ERROR_SUCCESS != rv)
- {
- CLIB_CUCKOO_DBG ("Slow insert failed, rehash required:\n%U",
- CV (format_cuckoo), h, 1);
- /* ultra slow path */
- CV (clib_cuckoo_rehash) (h);
- CLIB_CUCKOO_DEEP_SELF_CHECK (h);
- CLIB_CUCKOO_DBG ("Restarting add after rehash...");
- goto restart;
- }
- }
-unlock:
- clib_spinlock_unlock (&h->writer_lock);
- return rv;
-}
-
-u8 *CV (format_cuckoo) (u8 * s, va_list * args)
-{
- CVT (clib_cuckoo) * h = va_arg (*args, CVT (clib_cuckoo) *);
- int verbose = va_arg (*args, int);
-
- s = format (s, "Hash table %s\n", h->name ? h->name : "(unnamed)");
-
- uword free = 0;
- uword used = 0;
- uword use_count_total = 0;
- float load_factor;
- CVT (clib_cuckoo_bucket) * b;
- /* *INDENT-OFF* */
- clib_cuckoo_foreach_bucket (b, h, {
- if (verbose)
- {
- s = format (s, "%U", CV (format_cuckoo_bucket), b);
- }
- int i;
- clib_cuckoo_bucket_foreach_idx (i)
- {
- CVT (clib_cuckoo_kv) *elt = &b->elts[i];
- if (CV (clib_cuckoo_kv_is_free) (elt))
- {
- ++free;
- }
- else
- {
- ++used;
- }
- }
- clib_cuckoo_bucket_aux_t aux = b->aux;
- use_count_total += clib_cuckoo_bucket_aux_get_use_count (aux);
- });
- /* *INDENT-ON* */
- s = format (s, "Used slots: %wu\n", used);
- s = format (s, "Use count total: %wu\n", use_count_total);
- s = format (s, "Free slots: %wu\n", free);
- if (free + used != 0)
- load_factor = ((float) used) / ((float) (free + used));
- else
- load_factor = 0.0;
- s = format (s, "Load factor: %.2f\n", load_factor);
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- s = format (s, "BFS attempts limited by max steps: %lld\n",
- h->steps_exceeded);
- s = format (s, "BFS cutoffs due to empty queue: %lld\n",
- h->bfs_queue_emptied);
- s = format (s, "Fast adds: %lld\n", h->fast_adds);
- s = format (s, "Slow adds: %lld\n", h->slow_adds);
- s = format (s, "Rehashes: %lld\n", h->rehashes);
-#endif
- return s;
-}
-
-float CV (clib_cuckoo_calculate_load_factor) (CVT (clib_cuckoo) * h)
-{
- uword nonfree = 0;
- uword all = 0;
- CVT (clib_cuckoo_bucket) * bucket;
- /* *INDENT-OFF* */
- clib_cuckoo_foreach_bucket (bucket, h, {
- int i;
- clib_cuckoo_bucket_foreach_idx (i)
- {
- CVT (clib_cuckoo_kv) *elt = bucket->elts + i;
- ++all;
- if (!CV (clib_cuckoo_kv_is_free) (elt))
- {
- ++nonfree;
- }
- }
- });
- /* *INDENT-ON* */
- if (all)
- return (float) nonfree / (float) all;
- else
- return 0.0;
-}
-
-/** @endcond */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/cuckoo_template.h b/src/vppinfra/cuckoo_template.h
deleted file mode 100644
index 364c2919d96..00000000000
--- a/src/vppinfra/cuckoo_template.h
+++ /dev/null
@@ -1,460 +0,0 @@
-/*
- Copyright (c) 2017 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.
-*/
-
-/*
- * cuckoo hash implementation based on paper
- * 'Algorithmic Improvements for Fast Concurrent Cuckoo Hashing'
- * by Xiaozhou Li, David G. Andersen, Michael Kaminsky, Michael J. Freedman
- * and their libcuckoo implementation (https://github.com/efficient/libcuckoo)
- */
-
-/*
- * Note: to instantiate the template multiple times in a single file,
- * #undef __included_cuckoo_template_h__...
- */
-#ifndef __included_cuckoo_template_h__
-#define __included_cuckoo_template_h__
-
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/lock.h>
-#include <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/cache.h>
-
-#ifndef CLIB_CUCKOO_TYPE
-#error CLIB_CUCKOO_TYPE not defined
-#endif
-
-#ifndef CLIB_CUCKOO_BFS_MAX_STEPS
-#error CLIB_CUCKOO_BFS_MAX_STEPS not defined
-#endif
-
-#ifndef CLIB_CUCKOO_KVP_PER_BUCKET
-#error CLIB_CUCKOO_KVP_PER_BUCKET not defined
-#endif
-
-#ifndef CLIB_CUCKOO_LOG2_KVP_PER_BUCKET
-#error CLIB_CUCKOO_LOG2_KVP_PER_BUCKET not defined
-#endif
-
-#ifndef CLIB_CUCKOO_BFS_MAX_PATH_LENGTH
-#error CLIB_CUCKOO_BFS_MAX_PATH_LENGTH not defined
-#endif
-
-STATIC_ASSERT (CLIB_CUCKOO_KVP_PER_BUCKET ==
- (1 << CLIB_CUCKOO_LOG2_KVP_PER_BUCKET),
- "CLIB_CUCKOO_KVP_PER_BUCKET != (1 << CLIB_CUCKOO_LOG2_KVP_PER_BUCKET");
-
-#define _cv(a, b) a##b
-#define __cv(a, b) _cv (a, b)
-#define CV(a) __cv (a, CLIB_CUCKOO_TYPE)
-
-#define _cvt(a, b) a##b##_t
-#define __cvt(a, b) _cvt (a, b)
-#define CVT(a) __cvt (a, CLIB_CUCKOO_TYPE)
-
-typedef u64 clib_cuckoo_bucket_aux_t;
-
-#define CLIB_CUCKOO_USE_COUNT_BIT_WIDTH (1 + CLIB_CUCKOO_LOG2_KVP_PER_BUCKET)
-
-always_inline u64
-clib_cuckoo_bucket_aux_get_version (clib_cuckoo_bucket_aux_t aux)
-{
- return aux >> (1 + CLIB_CUCKOO_USE_COUNT_BIT_WIDTH);
-}
-
-always_inline int
-clib_cuckoo_bucket_aux_get_use_count (clib_cuckoo_bucket_aux_t aux)
-{
- u64 use_count_mask = (1 << CLIB_CUCKOO_USE_COUNT_BIT_WIDTH) - 1;
- return (aux >> 1) & use_count_mask;
-}
-
-always_inline int
-clib_cuckoo_bucket_aux_get_writer_flag (clib_cuckoo_bucket_aux_t aux)
-{
- return aux & 1;
-}
-
-always_inline clib_cuckoo_bucket_aux_t
-clib_cuckoo_bucket_aux_pack (u64 version, int use_count, int writer_flag)
-{
- return (version << (1 + CLIB_CUCKOO_USE_COUNT_BIT_WIDTH)) +
- (use_count << 1) + writer_flag;
-}
-
-always_inline clib_cuckoo_bucket_aux_t
-clib_cuckoo_bucket_aux_set_version (clib_cuckoo_bucket_aux_t aux, u64 version)
-{
- int use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- int writer_flag = clib_cuckoo_bucket_aux_get_writer_flag (aux);
- return clib_cuckoo_bucket_aux_pack (version, use_count, writer_flag);
-}
-
-always_inline clib_cuckoo_bucket_aux_t
-clib_cuckoo_bucket_aux_set_use_count (clib_cuckoo_bucket_aux_t aux,
- int use_count)
-{
- u64 version = clib_cuckoo_bucket_aux_get_version (aux);
- int writer_flag = clib_cuckoo_bucket_aux_get_writer_flag (aux);
- return clib_cuckoo_bucket_aux_pack (version, use_count, writer_flag);
-}
-
-always_inline clib_cuckoo_bucket_aux_t
-clib_cuckoo_bucket_aux_set_writer_flag (clib_cuckoo_bucket_aux_t aux,
- int writer_flag)
-{
- u64 version = clib_cuckoo_bucket_aux_get_version (aux);
- int use_count = clib_cuckoo_bucket_aux_get_use_count (aux);
- return clib_cuckoo_bucket_aux_pack (version, use_count, writer_flag);
-}
-
-#define PATH_BITS_REQ \
- (CLIB_CUCKOO_BFS_MAX_PATH_LENGTH * CLIB_CUCKOO_LOG2_KVP_PER_BUCKET)
-
-#if PATH_BITS_REQ <= 8
-typedef u8 path_data_t;
-#elif PATH_BITS_REQ <= 16
-typedef u16 path_data_t;
-#elif PATH_BITS_REQ <= 32
-typedef u32 path_data_t;
-#elif PATH_BITS_REQ <= 64
-typedef u64 path_data_t;
-#else
-#error no suitable datatype for path storage...
-#endif
-
-typedef struct
-{
- /** bucket where this path begins */
- u64 start;
- /** bucket at end of path */
- u64 bucket;
- /** length of the path */
- u8 length;
- /** holds compressed offsets in buckets along path */
- path_data_t data;
-} clib_cuckoo_path_t;
-
-typedef struct
-{
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-
- /** reduced hashes corresponding to elements */
- u8 reduced_hashes[CLIB_CUCKOO_KVP_PER_BUCKET];
-
- /** auxiliary data - version, writer flag and used count */
- volatile clib_cuckoo_bucket_aux_t aux;
-
- /** cuckoo elements in this bucket */
- CVT (clib_cuckoo_kv) elts[CLIB_CUCKOO_KVP_PER_BUCKET];
-} CVT (clib_cuckoo_bucket);
-
-#define clib_cuckoo_bucket_foreach_idx(var) \
- for (var = 0; var < CLIB_CUCKOO_KVP_PER_BUCKET; var++)
-
-#if CLIB_CUCKOO_OPTIMIZE_UNROLL
-#if CLIB_CUCKOO_KVP_PER_BUCKET == 2
-#define clib_cuckoo_bucket_foreach_idx_unrolled(var, body) \
- do \
- { \
- var = 0; \
- body; \
- var = 1; \
- body; \
- } \
- while (0);
-#elif CLIB_CUCKOO_KVP_PER_BUCKET == 4
-#define clib_cuckoo_bucket_foreach_idx_unrolled(var, body) \
- do \
- { \
- var = 0; \
- body; \
- var = 1; \
- body; \
- var = 2; \
- body; \
- var = 3; \
- body; \
- } \
- while (0);
-#elif CLIB_CUCKOO_KVP_PER_BUCKET == 8
-#define clib_cuckoo_bucket_foreach_idx_unrolled(var, body) \
- do \
- { \
- var = 0; \
- body; \
- var = 1; \
- body; \
- var = 2; \
- body; \
- var = 3; \
- body; \
- var = 4; \
- body; \
- var = 5; \
- body; \
- var = 6; \
- body; \
- var = 7; \
- body; \
- } \
- while (0);
-#else
-#define clib_cuckoo_bucket_foreach_idx_unrolled(var, body) \
- clib_cuckoo_bucket_foreach_idx (var) \
- { \
- body; \
- }
-#endif
-#else /* CLIB_CUCKOO_OPTIMIZE_UNROLL */
-#define clib_cuckoo_bucket_foreach_idx_unrolled(var, body) \
- clib_cuckoo_bucket_foreach_idx (var) \
- { \
- body; \
- }
-#endif /* CLIB_CUCKOO_OPTIMIZE_UNROLL */
-
-#define clib_cuckoo_bucket_foreach_elt_index(var, bucket) \
- for (var = 0; var < CLIB_CUCKOO_KVP_PER_BUCKET; ++i)
-
-#define clib_cuckoo_foreach_bucket(var, h, body) \
- do \
- { \
- CVT (clib_cuckoo_bucket) *__buckets = h->buckets; \
- vec_foreach (var, __buckets) \
- { \
- body; \
- } \
- } \
- while (0)
-
-typedef struct CV (clib_cuckoo)
-{
- /** vector of elements containing key-value pairs and auxiliary data */
- CVT (clib_cuckoo_bucket) * volatile buckets;
-
- /** garbage to be freed once its safe to do so .. */
- CVT (clib_cuckoo_bucket) * *to_be_freed;
-
- /** hash table name */
- const char *name;
-
- /** pool of cuckoo paths (reused when doing bfd search) */
- clib_cuckoo_path_t *paths;
-
- /**
- * vector used as queue when doing cuckoo path searches - holds offsets
- * in paths pool
- */
- uword *bfs_search_queue;
-
- /**
- * writer lock - whether this lock is taken or not has zero effect on
- * readers
- */
- clib_spinlock_t writer_lock;
-
- /** caller context passed to callback with garbage notification */
- void *garbage_ctx;
-
- /**
- * garbage notify function - called when some garbage needs to be collected
- * in main thread while other threads are stopped
- */
- void (*garbage_callback) (struct CV (clib_cuckoo) * h, void *garbage_ctx);
-
-#if CLIB_CUCKOO_DEBUG_COUNTERS
- u64 steps_exceeded;
- u64 bfs_queue_emptied;
- u64 fast_adds;
- u64 slow_adds;
- u64 rehashes;
-#endif
-
-} CVT (clib_cuckoo);
-
-void CV (clib_cuckoo_init) (CVT (clib_cuckoo) * h, const char *name,
- uword nbuckets,
- void (*garbage_callback) (CVT (clib_cuckoo) *,
- void *),
- void *garbage_ctx);
-
-void CV (clib_cuckoo_garbage_collect) (CVT (clib_cuckoo) * h);
-
-void CV (clib_cuckoo_free) (CVT (clib_cuckoo) * h);
-
-int CV (clib_cuckoo_add_del) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * add_v, int is_add,
- int dont_overwrite);
-int CV (clib_cuckoo_search) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * search_v,
- CVT (clib_cuckoo_kv) * return_v);
-
-void CV (clib_cuckoo_foreach_key_value_pair) (CVT (clib_cuckoo) * h,
- void *callback, void *arg);
-
-float CV (clib_cuckoo_calc_load) (CVT (clib_cuckoo) * h);
-
-format_function_t CV (format_cuckoo);
-format_function_t CV (format_cuckoo_kvp);
-
-always_inline u8
-clib_cuckoo_reduce_hash (u64 hash)
-{
- u32 v32 = ((u32) hash) ^ ((u32) (hash >> 32));
- u16 v16 = ((u16) v32) ^ ((u16) (v32 >> 16));
- u8 v8 = ((u8) v16) ^ ((u8) (v16 >> 8));
- return v8;
-}
-
-always_inline u64
-clib_cuckoo_get_other_bucket (u64 nbuckets, u64 bucket, u8 reduced_hash)
-{
- u64 mask = (nbuckets - 1);
- return (bucket ^ ((reduced_hash + 1) * 0xc6a4a7935bd1e995)) & mask;
-}
-
-always_inline clib_cuckoo_lookup_info_t
-CV (clib_cuckoo_calc_lookup) (CVT (clib_cuckoo_bucket) * buckets, u64 hash)
-{
- clib_cuckoo_lookup_info_t lookup;
- u64 nbuckets = vec_len (buckets);
- u64 mask = (nbuckets - 1);
- lookup.bucket1 = hash & mask;
-#if CLIB_CUCKOO_OPTIMIZE_PREFETCH
- CLIB_PREFETCH (vec_elt_at_index (buckets, lookup.bucket1),
- sizeof (*buckets), LOAD);
-#endif
- u8 reduced_hash = clib_cuckoo_reduce_hash (hash);
- lookup.bucket2 =
- clib_cuckoo_get_other_bucket (nbuckets, lookup.bucket1, reduced_hash);
-#if CLIB_CUCKOO_OPTIMIZE_PREFETCH
- CLIB_PREFETCH (vec_elt_at_index (buckets, lookup.bucket2),
- sizeof (*buckets), LOAD);
-#endif
- lookup.reduced_hash = reduced_hash;
- ASSERT (lookup.bucket1 < nbuckets);
- ASSERT (lookup.bucket2 < nbuckets);
- return lookup;
-}
-
-/**
- * search for key within bucket
- */
-always_inline int CV (clib_cuckoo_bucket_search) (CVT (clib_cuckoo_bucket) *
- b,
- CVT (clib_cuckoo_kv) * kvp,
- u8 reduced_hash)
-{
- clib_cuckoo_bucket_aux_t bucket_aux;
- u8 writer_flag;
- do
- {
- bucket_aux = b->aux;
- writer_flag = clib_cuckoo_bucket_aux_get_writer_flag (bucket_aux);
- }
- while (PREDICT_FALSE (writer_flag)); /* loop while writer flag is set */
-
- int i;
-#if CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH
- const int use_count = clib_cuckoo_bucket_aux_get_use_count (bucket_aux);
-#endif
- /* *INDENT-OFF* */
- clib_cuckoo_bucket_foreach_idx_unrolled (i, {
-#if CLIB_CUCKOO_OPTIMIZE_USE_COUNT_LIMITS_SEARCH
- if (i > use_count)
- {
- break;
- }
-#endif
- if (CV (clib_cuckoo_key_compare) (kvp->key, b->elts[i].key))
- {
- kvp->value = b->elts[i].value;
- clib_cuckoo_bucket_aux_t bucket_aux2 = b->aux;
- if (PREDICT_TRUE (clib_cuckoo_bucket_aux_get_version (bucket_aux) ==
- clib_cuckoo_bucket_aux_get_version (bucket_aux2)))
- {
- /* yay, fresh data */
- return CLIB_CUCKOO_ERROR_SUCCESS;
- }
- else
- {
- /* oops, modification detected */
- return CLIB_CUCKOO_ERROR_AGAIN;
- }
- }
- });
- /* *INDENT-ON* */
- return CLIB_CUCKOO_ERROR_NOT_FOUND;
-}
-
-always_inline int
-CV (clib_cuckoo_search_inline_with_hash) (CVT (clib_cuckoo) * h, u64 hash,
- CVT (clib_cuckoo_kv) * kvp)
-{
- CVT (clib_cuckoo_bucket) * buckets = h->buckets;
- uword bucket1, bucket2;
- u8 reduced_hash;
- u64 nbuckets = vec_len (buckets);
- u64 mask = nbuckets - 1;
- int rv;
-
- bucket1 = hash & mask;
- reduced_hash = clib_cuckoo_reduce_hash (hash);
-
-again:
- rv = CV (clib_cuckoo_bucket_search) (vec_elt_at_index (buckets, bucket1),
- kvp, reduced_hash);
-
- if (rv == CLIB_CUCKOO_ERROR_SUCCESS)
- return CLIB_CUCKOO_ERROR_SUCCESS;
-
- if (PREDICT_FALSE (rv == CLIB_CUCKOO_ERROR_AGAIN))
- goto again;
-
- bucket2 = clib_cuckoo_get_other_bucket (nbuckets, bucket1, reduced_hash);
- rv = CV (clib_cuckoo_bucket_search) (vec_elt_at_index (buckets, bucket2),
- kvp, reduced_hash);
-
- /* change to 2nd bucket could bump the item to 1st bucket and the bucket
- * indexes might not even be valid anymore - restart the search */
- if (PREDICT_FALSE (rv == CLIB_CUCKOO_ERROR_AGAIN))
- goto again;
-
- return rv;
-}
-
-always_inline int CV (clib_cuckoo_search_inline) (CVT (clib_cuckoo) * h,
- CVT (clib_cuckoo_kv) * kvp)
-{
- u64 hash = CV (clib_cuckoo_hash) (kvp);
- return CV (clib_cuckoo_search_inline_with_hash) (h, hash, kvp);
-}
-
-#endif /* __included_cuckoo_template_h__ */
-
-/** @endcond */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/fheap.c b/src/vppinfra/fheap.c
deleted file mode 100644
index 034168e85ab..00000000000
--- a/src/vppinfra/fheap.c
+++ /dev/null
@@ -1,473 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-#include <vppinfra/fheap.h>
-
-/* Fibonacci heaps. */
-always_inline fheap_node_t *
-fheap_get_node (fheap_t * f, u32 i)
-{
- return i != ~0 ? vec_elt_at_index (f->nodes, i) : 0;
-}
-
-always_inline fheap_node_t *
-fheap_get_root (fheap_t * f)
-{
- return fheap_get_node (f, f->min_root);
-}
-
-static void
-fheap_validate (fheap_t * f)
-{
- fheap_node_t *n, *m;
- uword ni, si;
-
- if (!CLIB_DEBUG || !f->enable_validate)
- return;
-
- vec_foreach_index (ni, f->nodes)
- {
- n = vec_elt_at_index (f->nodes, ni);
-
- if (!n->is_valid)
- continue;
-
- /* Min root must have minimal key. */
- m = vec_elt_at_index (f->nodes, f->min_root);
- ASSERT (n->key >= m->key);
-
- /* Min root must have no parent. */
- if (ni == f->min_root)
- ASSERT (n->parent == ~0);
-
- /* Check sibling linkages. */
- if (n->next_sibling == ~0)
- ASSERT (n->prev_sibling == ~0);
- else if (n->prev_sibling == ~0)
- ASSERT (n->next_sibling == ~0);
- else
- {
- fheap_node_t *prev, *next;
- u32 si = n->next_sibling, si_start = si;
- do
- {
- m = vec_elt_at_index (f->nodes, si);
- prev = vec_elt_at_index (f->nodes, m->prev_sibling);
- next = vec_elt_at_index (f->nodes, m->next_sibling);
- ASSERT (prev->next_sibling == si);
- ASSERT (next->prev_sibling == si);
- si = m->next_sibling;
- }
- while (si != si_start);
- }
-
- /* Loop through all siblings. */
- {
- u32 n_siblings = 0;
-
- foreach_fheap_node_sibling (f, si, n->next_sibling, (
- {
- m =
- vec_elt_at_index
- (f->nodes, si);
- /* All siblings must have same parent. */
- ASSERT (m->parent
- ==
- n->
- parent);
- n_siblings += 1;}
- ));
-
- /* Either parent is non-empty or there are siblings present. */
- if (n->parent == ~0 && ni != f->min_root)
- ASSERT (n_siblings > 0);
- }
-
- /* Loop through all children. */
- {
- u32 found_first_child = n->first_child == ~0;
- u32 n_children = 0;
-
- foreach_fheap_node_sibling (f, si, n->first_child, (
- {
- m =
- vec_elt_at_index
- (f->nodes, si);
- /* Children must have larger keys than their parent. */
- ASSERT (m->key >=
- n->key);
- if
- (!found_first_child)
- found_first_child =
- si ==
- n->first_child;
- n_children += 1;}
- ));
-
- /* Check that first child is present on list. */
- ASSERT (found_first_child);
-
- /* Make sure rank is correct. */
- ASSERT (n->rank == n_children);
- }
- }
-
- /* Increment serial number for each successful validate.
- Failure can be used as condition for gdb breakpoints. */
- f->validate_serial++;
-}
-
-always_inline void
-fheap_node_add_sibling (fheap_t * f, u32 ni, u32 ni_to_add)
-{
- fheap_node_t *n = vec_elt_at_index (f->nodes, ni);
- fheap_node_t *n_to_add = vec_elt_at_index (f->nodes, ni_to_add);
- fheap_node_t *n_next = fheap_get_node (f, n->next_sibling);
- fheap_node_t *parent;
-
- /* Empty list? */
- if (n->next_sibling == ~0)
- {
- ASSERT (n->prev_sibling == ~0);
- n->next_sibling = n->prev_sibling = ni_to_add;
- n_to_add->next_sibling = n_to_add->prev_sibling = ni;
- }
- else
- {
- /* Add node after existing node. */
- n_to_add->prev_sibling = ni;
- n_to_add->next_sibling = n->next_sibling;
-
- n->next_sibling = ni_to_add;
- n_next->prev_sibling = ni_to_add;
- }
-
- n_to_add->parent = n->parent;
- parent = fheap_get_node (f, n->parent);
- if (parent)
- parent->rank += 1;
-}
-
-void
-fheap_add (fheap_t * f, u32 ni, u32 key)
-{
- fheap_node_t *r, *n;
- u32 ri;
-
- n = vec_elt_at_index (f->nodes, ni);
-
- clib_memset (n, 0, sizeof (n[0]));
- n->parent = n->first_child = n->next_sibling = n->prev_sibling = ~0;
- n->key = key;
-
- r = fheap_get_root (f);
- ri = f->min_root;
- if (!r)
- {
- /* No root? Add node as new root. */
- f->min_root = ni;
- }
- else
- {
- /* Add node as sibling of current root. */
- fheap_node_add_sibling (f, ri, ni);
-
- /* New node may become new root. */
- if (r->key > n->key)
- f->min_root = ni;
- }
-
- fheap_validate (f);
-}
-
-always_inline u32
-fheap_node_remove_internal (fheap_t * f, u32 ni, u32 invalidate)
-{
- fheap_node_t *n = vec_elt_at_index (f->nodes, ni);
- u32 prev_ni = n->prev_sibling;
- u32 next_ni = n->next_sibling;
- u32 list_has_single_element = prev_ni == ni;
- fheap_node_t *prev = fheap_get_node (f, prev_ni);
- fheap_node_t *next = fheap_get_node (f, next_ni);
- fheap_node_t *p = fheap_get_node (f, n->parent);
-
- if (p)
- {
- ASSERT (p->rank > 0);
- p->rank -= 1;
- p->first_child = list_has_single_element ? ~0 : next_ni;
- }
-
- if (prev)
- {
- ASSERT (prev->next_sibling == ni);
- prev->next_sibling = next_ni;
- }
- if (next)
- {
- ASSERT (next->prev_sibling == ni);
- next->prev_sibling = prev_ni;
- }
-
- n->prev_sibling = n->next_sibling = ni;
- n->parent = ~0;
- n->is_valid = invalidate == 0;
-
- return list_has_single_element ? ~0 : next_ni;
-}
-
-always_inline u32
-fheap_node_remove (fheap_t * f, u32 ni)
-{
- return fheap_node_remove_internal (f, ni, /* invalidate */ 0);
-}
-
-always_inline u32
-fheap_node_remove_and_invalidate (fheap_t * f, u32 ni)
-{
- return fheap_node_remove_internal (f, ni, /* invalidate */ 1);
-}
-
-static void
-fheap_link_root (fheap_t * f, u32 ni)
-{
- fheap_node_t *n = vec_elt_at_index (f->nodes, ni);
- fheap_node_t *r, *lo, *hi;
- u32 ri, lo_i, hi_i, k;
-
- while (1)
- {
- k = n->rank;
- vec_validate_init_empty (f->root_list_by_rank, k, ~0);
- ri = f->root_list_by_rank[k];
- r = fheap_get_node (f, ri);
- if (!r)
- {
- f->root_list_by_rank[k] = ni;
- return;
- }
-
- f->root_list_by_rank[k] = ~0;
-
- /* Sort n/r into lo/hi by their keys. */
- lo = r, lo_i = ri;
- hi = n, hi_i = ni;
- if (hi->key < lo->key)
- {
- u32 ti;
- fheap_node_t *tn;
- ti = lo_i, tn = lo;
- lo = hi, lo_i = hi_i;
- hi = tn, hi_i = ti;
- }
-
- /* Remove larger key. */
- fheap_node_remove (f, hi_i);
-
- /* Add larger key as child of smaller one. */
- if (lo->first_child == ~0)
- {
- hi->parent = lo_i;
- lo->first_child = hi_i;
- lo->rank = 1;
- }
- else
- fheap_node_add_sibling (f, lo->first_child, hi_i);
-
- /* Following Fredman & Trajan: "When making a root node X a child of another node in a linking step,
- we unmark X". */
- hi->is_marked = 0;
-
- ni = lo_i;
- n = lo;
- }
-}
-
-u32
-fheap_del_min (fheap_t * f, u32 * min_key)
-{
- fheap_node_t *r = fheap_get_root (f);
- u32 to_delete_min_ri = f->min_root;
- u32 ri, ni;
-
- /* Empty heap? */
- if (!r)
- return ~0;
-
- /* Root's children become siblings. Call this step a; see below. */
- if (r->first_child != ~0)
- {
- u32 ci, cni, rni;
- fheap_node_t *c, *cn, *rn;
-
- /* Splice child & root circular lists together. */
- ci = r->first_child;
- c = vec_elt_at_index (f->nodes, ci);
-
- cni = c->next_sibling;
- rni = r->next_sibling;
- cn = vec_elt_at_index (f->nodes, cni);
- rn = vec_elt_at_index (f->nodes, rni);
-
- r->next_sibling = cni;
- c->next_sibling = rni;
- cn->prev_sibling = to_delete_min_ri;
- rn->prev_sibling = ci;
- }
-
- /* Remove min root. */
- ri = fheap_node_remove_and_invalidate (f, to_delete_min_ri);
-
- /* Find new min root from among siblings including the ones we've just added. */
- f->min_root = ~0;
- if (ri != ~0)
- {
- u32 ri_last, ri_next, i, min_ds;
-
- r = fheap_get_node (f, ri);
- ri_last = r->prev_sibling;
- while (1)
- {
- /* Step a above can put children (with r->parent != ~0) on root list. */
- r->parent = ~0;
-
- ri_next = r->next_sibling;
- fheap_link_root (f, ri);
- if (ri == ri_last)
- break;
- ri = ri_next;
- r = fheap_get_node (f, ri);
- }
-
- min_ds = ~0;
- vec_foreach_index (i, f->root_list_by_rank)
- {
- ni = f->root_list_by_rank[i];
- if (ni == ~0)
- continue;
- f->root_list_by_rank[i] = ~0;
- r = fheap_get_node (f, ni);
- if (r->key < min_ds)
- {
- f->min_root = ni;
- min_ds = r->key;
- ASSERT (r->parent == ~0);
- }
- }
- }
-
- /* Return deleted min root. */
- r = vec_elt_at_index (f->nodes, to_delete_min_ri);
- if (min_key)
- *min_key = r->key;
-
- fheap_validate (f);
-
- return to_delete_min_ri;
-}
-
-static void
-fheap_mark_parent (fheap_t * f, u32 pi)
-{
- fheap_node_t *p = vec_elt_at_index (f->nodes, pi);
-
- /* Parent is a root: do nothing. */
- if (p->parent == ~0)
- return;
-
- /* If not marked, mark it. */
- if (!p->is_marked)
- {
- p->is_marked = 1;
- return;
- }
-
- /* Its a previously marked, non-root parent.
- Cut edge to its parent and add to root list. */
- fheap_node_remove (f, pi);
- fheap_node_add_sibling (f, f->min_root, pi);
-
- /* Unmark it since its now a root node. */
- p->is_marked = 0;
-
- /* "Cascading cuts": check parent. */
- if (p->parent != ~0)
- fheap_mark_parent (f, p->parent);
-}
-
-/* Set key to new smaller value. */
-void
-fheap_decrease_key (fheap_t * f, u32 ni, u32 new_key)
-{
- fheap_node_t *n = vec_elt_at_index (f->nodes, ni);
- fheap_node_t *r = fheap_get_root (f);
-
- n->key = new_key;
-
- if (n->parent != ~0)
- {
- fheap_mark_parent (f, n->parent);
-
- /* Remove node and add to root list. */
- fheap_node_remove (f, ni);
- fheap_node_add_sibling (f, f->min_root, ni);
- }
-
- if (n->key < r->key)
- f->min_root = ni;
-
- fheap_validate (f);
-}
-
-void
-fheap_del (fheap_t * f, u32 ni)
-{
- fheap_node_t *n;
-
- n = vec_elt_at_index (f->nodes, ni);
-
- if (n->parent == ~0)
- {
- ASSERT (ni == f->min_root);
- fheap_del_min (f, 0);
- }
- else
- {
- u32 ci;
-
- fheap_mark_parent (f, n->parent);
-
- /* Add children to root list. */
- foreach_fheap_node_sibling (f, ci, n->first_child, (
- {
- fheap_node_remove
- (f, ci);
- fheap_node_add_sibling
- (f, f->min_root,
- ci);}
- ));
-
- fheap_node_remove_and_invalidate (f, ni);
- }
-
- fheap_validate (f);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/fheap.h b/src/vppinfra/fheap.h
deleted file mode 100644
index 1dbd52bad76..00000000000
--- a/src/vppinfra/fheap.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-#ifndef included_clib_fheap_h
-#define included_clib_fheap_h
-
-/* Fibonacci Heaps Fredman, M. L.; Tarjan (1987).
- "Fibonacci heaps and their uses in improved network optimization algorithms" */
-
-#include <vppinfra/vec.h>
-
-typedef struct
-{
- /* Node index of parent. */
- u32 parent;
-
- /* Node index of first child. */
- u32 first_child;
-
- /* Next and previous nodes in doubly linked list of siblings. */
- u32 next_sibling, prev_sibling;
-
- /* Key (distance) for this node. Parent always has key
- <= than keys of children. */
- u32 key;
-
- /* Number of children (as opposed to descendents). */
- u32 rank;
-
- u32 is_marked;
-
- /* Set to one when node is inserted; zero when deleted. */
- u32 is_valid;
-} fheap_node_t;
-
-#define foreach_fheap_node_sibling(f,ni,first_ni,body) \
-do { \
- u32 __fheap_foreach_first_ni = (first_ni); \
- u32 __fheap_foreach_ni = __fheap_foreach_first_ni; \
- u32 __fheap_foreach_next_ni; \
- fheap_node_t * __fheap_foreach_n; \
- if (__fheap_foreach_ni != ~0) \
- while (1) \
- { \
- __fheap_foreach_n = fheap_get_node ((f), __fheap_foreach_ni); \
- __fheap_foreach_next_ni = __fheap_foreach_n -> next_sibling; \
- (ni) = __fheap_foreach_ni; \
- \
- body; \
- \
- /* End of circular list? */ \
- if (__fheap_foreach_next_ni == __fheap_foreach_first_ni) \
- break; \
- \
- __fheap_foreach_ni = __fheap_foreach_next_ni; \
- \
- } \
-} while (0)
-
-typedef struct
-{
- u32 min_root;
-
- /* Vector of nodes. */
- fheap_node_t *nodes;
-
- u32 *root_list_by_rank;
-
- u32 enable_validate;
-
- u32 validate_serial;
-} fheap_t;
-
-/* Initialize empty heap. */
-always_inline void
-fheap_init (fheap_t * f, u32 n_nodes)
-{
- fheap_node_t *save_nodes = f->nodes;
- u32 *save_root_list = f->root_list_by_rank;
-
- clib_memset (f, 0, sizeof (f[0]));
-
- f->nodes = save_nodes;
- f->root_list_by_rank = save_root_list;
-
- vec_validate (f->nodes, n_nodes - 1);
- vec_reset_length (f->root_list_by_rank);
-
- f->min_root = ~0;
-}
-
-always_inline void
-fheap_free (fheap_t * f)
-{
- vec_free (f->nodes);
- vec_free (f->root_list_by_rank);
-}
-
-always_inline u32
-fheap_find_min (fheap_t * f)
-{
- return f->min_root;
-}
-
-always_inline u32
-fheap_is_empty (fheap_t * f)
-{
- return f->min_root == ~0;
-}
-
-/* Add/delete nodes. */
-void fheap_add (fheap_t * f, u32 ni, u32 key);
-void fheap_del (fheap_t * f, u32 ni);
-
-/* Delete and return minimum. */
-u32 fheap_del_min (fheap_t * f, u32 * min_key);
-
-/* Change key value. */
-void fheap_decrease_key (fheap_t * f, u32 ni, u32 new_key);
-
-#endif /* included_clib_fheap_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/flowhash_24_16.h b/src/vppinfra/flowhash_24_16.h
deleted file mode 100644
index 64ee0796c7a..00000000000
--- a/src/vppinfra/flowhash_24_16.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (c) 2012 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.
- */
-
-#ifndef SRC_VPPINFRA_FLOWHASH_24_16_H_
-#define SRC_VPPINFRA_FLOWHASH_24_16_H_
-
-#ifdef __included_flowhash_template_h__
-#undef __included_flowhash_template_h__
-#endif
-
-#include <vppinfra/clib.h>
-#include <vppinfra/xxhash.h>
-#include <vppinfra/crc32.h>
-
-typedef struct {
- u64 as_u64[3];
-} flowhash_skey_24_16_t;
-
-typedef struct {
- u64 as_u64[3];
-} flowhash_lkey_24_16_t;
-
-typedef struct {
- u64 as_u64[2];
-} flowhash_value_24_16_t;
-
-#define FLOWHASH_TYPE _24_16
-#include <vppinfra/flowhash_template.h>
-#undef FLOWHASH_TYPE
-
-static_always_inline
-u32 flowhash_hash_24_16(flowhash_lkey_24_16_t *k)
-{
-#ifdef clib_crc32c_uses_intrinsics
- return clib_crc32c ((u8 *) &k->as_u64[0], 24);
-#else
- u64 val = 0;
- val ^= k->as_u64[0];
- val ^= k->as_u64[1];
- val ^= k->as_u64[2];
- return (u32)clib_xxhash (val);
-#endif
-}
-
-static_always_inline
-u8 flowhash_cmp_key_24_16(flowhash_skey_24_16_t *a,
- flowhash_lkey_24_16_t *b)
-{
- u8 val = 0;
- val |= (a->as_u64[0] != b->as_u64[0]);
- val |= (a->as_u64[1] != b->as_u64[1]);
- val |= (a->as_u64[2] != b->as_u64[2]);
- return val;
-}
-
-static_always_inline
-void flowhash_cpy_key_24_16(flowhash_skey_24_16_t *dst,
- flowhash_lkey_24_16_t *src)
-{
- dst->as_u64[0] = src->as_u64[0];
- dst->as_u64[1] = src->as_u64[1];
- dst->as_u64[2] = src->as_u64[2];
-}
-
-#endif /* SRC_VPPINFRA_FLOWHASH_24_16_H_ */
diff --git a/src/vppinfra/flowhash_8_8.h b/src/vppinfra/flowhash_8_8.h
deleted file mode 100644
index 4a5cfc0a0c6..00000000000
--- a/src/vppinfra/flowhash_8_8.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (c) 2012 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.
- */
-
-#ifndef SRC_VPPINFRA_FLOWHASH_8_8_H_
-#define SRC_VPPINFRA_FLOWHASH_8_8_H_
-
-#ifdef __included_flowhash_template_h__
-#undef __included_flowhash_template_h__
-#endif
-
-#include <vppinfra/clib.h>
-#include <vppinfra/xxhash.h>
-#include <vppinfra/crc32.h>
-
-typedef struct {
- u64 as_u64[1];
-} flowhash_skey_8_8_t;
-
-typedef struct {
- u64 as_u64[1];
-} flowhash_lkey_8_8_t;
-
-typedef struct {
- u64 as_u64[1];
-} flowhash_value_8_8_t;
-
-#define FLOWHASH_TYPE _8_8
-#include <vppinfra/flowhash_template.h>
-#undef FLOWHASH_TYPE
-
-static_always_inline
-u32 flowhash_hash_8_8(flowhash_lkey_8_8_t *k)
-{
-#ifdef clib_crc32c_uses_intrinsics
- return clib_crc32c ((u8 *) &k->as_u64[0], 8);
-#else
- return clib_xxhash (k->as_u64[0]);
-#endif
-}
-
-static_always_inline
-u8 flowhash_cmp_key_8_8(flowhash_skey_8_8_t *a,
- flowhash_lkey_8_8_t *b)
-{
- return a->as_u64[0] != b->as_u64[0];
-}
-
-static_always_inline
-void flowhash_cpy_key_8_8(flowhash_skey_8_8_t *dst,
- flowhash_lkey_8_8_t *src)
-{
- dst->as_u64[0] = src->as_u64[0];
-}
-
-#endif /* SRC_VPPINFRA_FLOWHASH_8_8_H_ */
diff --git a/src/vppinfra/flowhash_template.h b/src/vppinfra/flowhash_template.h
deleted file mode 100644
index d7a621c1754..00000000000
--- a/src/vppinfra/flowhash_template.h
+++ /dev/null
@@ -1,608 +0,0 @@
-/*
- * Copyright (c) 2012 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.
- */
-
-/*
- * Author: Pierre Pfister <ppfister@cisco.com>
- *
- * DISCLAIMER !
- *
- * This most likely is not the hash table you are looking for !!
- *
- * This structure targets a very specific and quite narrow set of use-cases
- * that are not covered by other hash tables.
- *
- * Read the following text carefully, or ask the author or one of VPP's
- * committers to make sure this is what you are looking for.
- *
- *
- * -- Abstract:
- * This hash table intends to provide a very fast lookup and insertion of
- * key-value pairs for flow tables (although it might be used for other
- * purposes), with additional support for lazy-timeouts.
- * In particular, it was designed to minimize blocking reads, register usage and
- * cache-lines accesses during a typical lookup.
- * This hash table therefore provides stateful packet processing
- * without performance degradation even when every single lookup has to fetch
- * memory from RAM.
- * This hash table is not thread-safe and requires executing a garbage
- * collection function to clean-up chained buckets.
- *
- * -- Overview:
- *
- * One first aspect of this hash table is that it is self-contained in a single
- * bulk of memory. Each entry contains a key, a value, and a 32 bits timeout
- * value; occupies a full and single cache line; and is identified by a unique
- * 32 bits index. The entry index zero is reserved and used when an entry
- * could not be found nor inserted. Which means it is not necessary to
- * immediately check whether an insertion or lookup was successful before
- * behaving accordingly. One can just keep doing business as usual and
- * check for the error later.
- *
- * Each entry is associated with a timeout value (which unit or clock is up to
- * the user of the hash table). An entry which timeout is strictly smaller
- * than the current time is considered empty, whereas an entry which timeout is
- * greater or equal to the current time contains a valid key-value pair.
- *
- * Hash table lookup and insertion are equivalent:
- * - An entry index is always returned (possibly index 0 if no entry could be
- * found nor created).
- * - The returned entry always has its key set to the provided key.
- * - Timeout value will be greater than the provided current time whenever a
- * valid entry was found, strictly smaller otherwise. In particular, one can
- * not differentiate between an entry which was just created, and an entry
- * which already existed in the past but got timeouted in between.
- *
- * As mentioned earlier, entry index zero is used as an invalid entry which may
- * be manipulated as a normal one. Entries which index go from 1 to
- * N (where N is a power of 2) are used as direct buckets, each containing a
- * single entry. In the absence of hash collision, a single entry which location
- * can deterministically be determined from the key-hash and the hash table
- * header is accessed (One single cache line, without indirection). This
- * allows for efficient pre-fetching of the key-value for more than 95% of
- * accesses.
- *
- * In order to handle hash collisions (i.e. when multiple keys
- * end-up in the same bucket), entries which index are greater than N are
- * grouped into M groups of 16 collision entries. Such groups are linked
- * with regular entries whenever a collision needs to be handled.
- * When looking up a key with a bucket where a collision occurred, unused bits
- * from the key hash are used to select two entries (from the collision bucket)
- * where the new entry might be inserted.
- *
- * Once an entry is inserted, it will never be moved as long as the entry
- * timeout value remains greater or equal to the provided current time value.
- * The entry index can therefore be stored in other data structure as a way
- * to bypass the hash lookup. But when doing so, one should check if the
- * present key is the actual looked-up key.
- *
- * -- Garbage Collection:
- *
- * Since there is no explicit element removal, a garbage collector mechanism
- * is required in order to remove buckets used for hash collisions. This
- * is done by calling the flowhash_gc function on a regular basis. Each call
- * to this function examines a single fixed entry. It shall therefore be called
- * as many times as there are fixed entries in the hash table in order to
- * ensure a full inspection.
- *
- * -- Time and timeout mechanism:
- *
- * The hash table makes use of a time value between in [1, 2^32 - 1].
- * The provided time value shall keep increasing, and looping is not handled.
- * When seconds are used, the system should run for 136 years without any issue.
- * If milliseconds are used, a shift should be operated on all timeout values
- * on a regular basis (more than every 49 days).
- */
-
-#ifndef __included_flowhash_template_h__
-#define __included_flowhash_template_h__
-
-#include <vppinfra/clib.h>
-#include <vppinfra/mem.h>
-#include <vppinfra/cache.h>
-
-#ifndef FLOWHASH_TYPE
-#error FLOWHASH_TYPE not defined
-#endif
-
-#define _fv(a,b) a##b
-#define __fv(a,b) _fv(a,b)
-#define FV(a) __fv(a,FLOWHASH_TYPE)
-
-#define _fvt(a,b) a##b##_t
-#define __fvt(a,b) _fvt(a,b)
-#define FVT(a) __fvt(a,FLOWHASH_TYPE)
-
-/* Same for all flowhash variants */
-#ifndef __included_flowhash_common__
-
-#define FLOWHASH_INVALID_ENTRY_INDEX 0
-
-#define FLOWHASH_ENTRIES_PER_BUCKETS_LOG 4
-#define FLOWHASH_ENTRIES_PER_BUCKETS (1 << FLOWHASH_ENTRIES_PER_BUCKETS_LOG)
-
-#endif /* ifndef __included_flowhash_common__ */
-
- /**
- * @brief Compare a stored key with a lookup key.
- *
- * This function must be defined to use this template. It must return 0
- * when the two keys are identical, and a different value otherwise.
- */
-static_always_inline
-u8 FV(flowhash_cmp_key)(FVT(flowhash_skey) *a, FVT(flowhash_lkey) *b);
-
- /**
- * @brief Hash a lookup key into a 32 bit integer.
- *
- * This function must be defined to use this template.
- * It must provides close to 32 bits of entropy distributed amongst
- * all 32 bits of the provided value.
- * Keys that are equal must have the same hash.
- */
- static_always_inline
- u32 FV(flowhash_hash)(FVT(flowhash_lkey) *k);
-
-/**
- * @brief Copy a lookup key into a destination stored key.
- *
- * This function must be defined to use this template. It must modify the dst
- * key such that a later call to flowhash_cmp_key with the same arguments
- * would return 0.
- */
-static_always_inline
-void FV(flowhash_cpy_key)(FVT(flowhash_skey) *dst, FVT(flowhash_lkey) *src);
-
-/**
- * @brief One flow hash entry used for both direct buckets and collision
- * buckets.
- */
-typedef struct {
- /* Each entry is cache-line aligned. */
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-
- /* Key is first to take advantage of alignment. */
- FVT(flowhash_skey) key;
-
- /* Entry value. */
- FVT(flowhash_value) value;
-
- /* Timeout value */
- u32 timeout;
-
- /* Entry index to the chained bucket. */
- u32 chained_entry_index;
-} FVT(flowhash_entry);
-
-typedef struct FVT(__flowhash_struct) {
- /* Cache aligned to simplify allocation. */
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-
- /* Array going downward containing free bucket indices */
- u32 free_buckets_indices[0];
-
- /* Negative index of the first free bucket */
- i32 free_buckets_position;
-
- /* Number of fixed buckets minus one */
- u32 fixed_entries_mask;
-
- /* Allocated pointer for this hash table */
- void *mem;
-
- u32 collision_buckets_mask;
- u32 total_entries;
-
- u64 not_enough_buckets_counter;
- u64 collision_lookup_counter;
- u64 garbage_collection_counter;
-
- u32 gc_counter;
-
- /* Entry array containing:
- * - 1 Dummy entry for error return
- * - (buckets_mask + 1) Fixed buckets
- * - chained_buckets Chained Buckets
- */
- FVT(flowhash_entry) entries[0];
-} FVT(flowhash);
-
-/* Same for all flowhash variants */
-#ifndef __included_flowhash_common__
-#define __included_flowhash_common__
-
-/**
- * @brief Test whether a returned entry index corresponds to an overflow event.
- */
-#define flowhash_is_overflow(ei) \
- ((ei) == FLOWHASH_INVALID_ENTRY_INDEX)
-
-/**
- * @brief Iterate over all entries in the hash table.
- *
- * Iterate over all entries in the hash table, not including the first invalid
- * entry (at index 0), but including all chained hash collision buckets.
- *
- */
-#define flowhash_foreach_entry(h, ei) \
- for (ei = 1; \
- ei < (h)->total_entries; \
- ei++)
-
-/**
- * @brief Iterate over all currently valid entries.
- *
- * Iterate over all entries in the hash table which timeout value is greater
- * or equal to the current time.
- */
-#define flowhash_foreach_valid_entry(h, ei, now) \
- flowhash_foreach_entry(h, ei) \
- if (((now) <= (h)->entries[ei].timeout))
-
-/**
- * @brief Timeout variable from a given entry.
- */
-#define flowhash_timeout(h, ei) (h)->entries[ei].timeout
-
-/**
- * @brief Indicates whether the entry is being used.
- */
-#define flowhash_is_timeouted(h, ei, time_now) \
- ((time_now) > flowhash_timeout(h, ei))
-
-/**
- * @brief Get the key from the entry index, casted to the provided type.
- */
-#define flowhash_key(h, ei) (&(h)->entries[ei].key)
-
-/**
- * @brief Get the value from the entry index, casted to the provided type.
- */
-#define flowhash_value(h, ei) (&(h)->entries[ei].value)
-
-/**
- * @brief Get the number of octets allocated to this structure.
- */
-#define flowhash_memory_size(h) clib_mem_size((h)->mem)
-
-/**
- * @brief Test whether the entry index is in hash table boundaries.
- */
-#define flowhash_is_valid_entry_index(h, ei) (ei < (h)->total_entries)
-
-/**
- * @brief Adjust, if necessary, provided parameters such as being valid flowhash
- * sizes.
- */
-static
-void flowhash_validate_sizes(u32 *fixed_entries, u32 *collision_buckets)
-{
- /* Find power of two greater or equal to the provided value */
- if (*fixed_entries < FLOWHASH_ENTRIES_PER_BUCKETS)
- *fixed_entries = FLOWHASH_ENTRIES_PER_BUCKETS;
- if (*fixed_entries > (1 << (32 - FLOWHASH_ENTRIES_PER_BUCKETS_LOG)))
- *fixed_entries = (1 << (32 - FLOWHASH_ENTRIES_PER_BUCKETS_LOG));
-
- *fixed_entries -= 1;
- *fixed_entries |= *fixed_entries >> 16;
- *fixed_entries |= *fixed_entries >> 8;
- *fixed_entries |= *fixed_entries >> 4;
- *fixed_entries |= *fixed_entries >> 2;
- *fixed_entries |= *fixed_entries >> 1;
- *fixed_entries += 1;
-
- if (*collision_buckets != 0)
- {
- if (*collision_buckets < CLIB_CACHE_LINE_BYTES/sizeof(u32))
- *collision_buckets = CLIB_CACHE_LINE_BYTES/sizeof(u32);
-
- *collision_buckets -= 1;
- *collision_buckets |= *collision_buckets >> 16;
- *collision_buckets |= *collision_buckets >> 8;
- *collision_buckets |= *collision_buckets >> 4;
- *collision_buckets |= *collision_buckets >> 2;
- *collision_buckets |= *collision_buckets >> 1;
- *collision_buckets += 1;
- }
-}
-
-/**
- * @brief Prefetch the the hash entry bucket.
- *
- * This should be performed approximately 200-300 cycles before lookup
- * if the table is located in RAM. Or 30-40 cycles before lookup
- * in case the table is located in L3.
- */
-#define flowhash_prefetch(h, hash) \
- CLIB_PREFETCH (&(h)->entries[((hash) & (h)->fixed_entries_mask) + 1], \
- sizeof((h)->entries[0]), LOAD)
-
-#endif /* ifndef __included_flowhash_common__ */
-
-/**
- * @brief Allocate a flowhash structure.
- *
- * @param[in] fixed_entries The number of fixed entries in the hash table.
- * @param[in] chained_buckets The number of chained buckets.
- *
- * fixed_entries and chained_buckets parameters may not be used as is but
- * modified in order to fit requirements.
- *
- * Since the flowhash does not support dynamic resizing, it is fairly
- * important to choose the parameters carefully. In particular the performance
- * gain from using this structure comes from an efficient lookup in the
- * absence of hash collision.
- * As a rule of thumbs, if the number of active entries (flows) is M,
- * there should be about 16*M fixed entries, and M/16 collision buckets.
- * Which represents 17*M allocated entries.
- *
- * For example:
- * M = 2^20 total_size ~= 1GiB collision ~= 3%
- * M = 2^18 total_size ~= 250MiB collision ~= 3%
- * M = 2^10 total_size ~= 1MiB collision ~= 6%
- *
- */
-static_always_inline
-FVT(flowhash) *FV(flowhash_alloc)(u32 fixed_entries, u32 collision_buckets)
-{
- FVT(flowhash) *h;
- uword size;
- void *mem;
- u32 entries;
-
- flowhash_validate_sizes(&fixed_entries, &collision_buckets);
-
- entries = 1 + fixed_entries +
- collision_buckets * FLOWHASH_ENTRIES_PER_BUCKETS;
- size = sizeof(*h) + sizeof(h->entries[0]) * entries +
- sizeof(h->free_buckets_indices[0]) * collision_buckets;
-
- mem = clib_mem_alloc_aligned(size, CLIB_CACHE_LINE_BYTES);
- h = mem + collision_buckets * sizeof(h->free_buckets_indices[0]);
- h->mem = mem;
-
- /* Fill free elements list */
- int i;
- clib_memset(h->entries, 0, sizeof(h->entries[0]) * entries);
- for (i = 1; i <= collision_buckets; i++)
- {
- h->free_buckets_indices[-i] =
- entries - i * FLOWHASH_ENTRIES_PER_BUCKETS;
- }
-
- /* Init buckets */
- for (i=0; i < entries; i++)
- {
- h->entries[i].chained_entry_index = FLOWHASH_INVALID_ENTRY_INDEX;
- h->entries[i].timeout = 0;
- }
-
- h->free_buckets_position = -collision_buckets;
- h->fixed_entries_mask = fixed_entries - 1;
- h->collision_buckets_mask = collision_buckets - 1;
- h->total_entries = entries;
- h->not_enough_buckets_counter = 0;
- h->collision_lookup_counter = 0;
- h->garbage_collection_counter = 0;
- h->gc_counter = 0;
-
- return h;
-}
-
-/**
- * @brief Free the flow hash memory.
- */
-static_always_inline
-void FV(flowhash_free)(FVT(flowhash) *h)
-{
- clib_mem_free(h->mem);
-}
-
-static void
-FV(__flowhash_get_chained) (FVT(flowhash) *h, FVT(flowhash_lkey) *k,
- u32 hash, u32 time_now, u32 *ei);
-
-/**
- * @brief Retrieves an entry index corresponding to a provided key and its hash.
- *
- * @param h The hash table pointer.
- * @param k[in] A pointer to the key value.
- * @param hash[in] The hash of the key.
- * @param time_now[in] The current time.
- * @param ei[out] A pointer set to the found entry index.
- *
- * This function always sets ei value to a valid entry index which can then be
- * used to access the stored value as well as get or set its associated timeout.
- * The key stored in the returned entry is always set to the provided key.
- *
- * In case the provided key is not found, and no entry could be created
- * (either because there is no hash collision bucket available or
- * the candidate entries in the collision bucket were already used), ei is
- * set to the special value FLOWHASH_INVALID_ENTRY_INDEX (which can be tested
- * with the flowhash_is_overflow macro).
- *
- * The timeout value is never modified during a lookup.
- * - Use the flowhash_is_timeouted macro to test whether the returned entry
- * was already valid, or is proposed for insertion.
- * - Use the flowhash_timeout macro to get and set the entry timeout value.
- *
- */
-static_always_inline
-void FV(flowhash_get) (FVT(flowhash) *h, FVT(flowhash_lkey) *k,
- u32 hash, u32 time_now, u32 *ei)
-{
- *ei = (hash & h->fixed_entries_mask) + 1;
-
- if (PREDICT_FALSE(FV(flowhash_cmp_key)(&h->entries[*ei].key, k) != 0))
- {
- if (PREDICT_TRUE(time_now > h->entries[*ei].timeout &&
- (h->entries[*ei].chained_entry_index ==
- FLOWHASH_INVALID_ENTRY_INDEX)))
- {
- FV(flowhash_cpy_key)(&h->entries[*ei].key, k);
- }
- else
- {
- FV(__flowhash_get_chained)(h, k, hash, time_now, ei);
- }
- }
-}
-
-static_always_inline void
-FV(__flowhash_get_chained) (FVT(flowhash) *h, FVT(flowhash_lkey) *k,
- u32 hash, u32 time_now, u32 *ei)
-{
- h->collision_lookup_counter++;
-
- if (h->entries[*ei].chained_entry_index == FLOWHASH_INVALID_ENTRY_INDEX)
- {
- /* No chained entry yet. Let's chain one. */
- if (h->free_buckets_position == 0)
- {
- /* Oops. No more buckets available. */
- h->not_enough_buckets_counter++;
- *ei = FLOWHASH_INVALID_ENTRY_INDEX;
- h->entries[FLOWHASH_INVALID_ENTRY_INDEX].timeout =
- time_now - 1;
- FV(flowhash_cpy_key)(
- &h->entries[FLOWHASH_INVALID_ENTRY_INDEX].key, k);
- return;
- }
-
- /* Forward link */
- h->entries[*ei].chained_entry_index =
- h->free_buckets_indices[h->free_buckets_position];
-
- /* Backward link (for garbage collection) */
- h->entries[h->free_buckets_indices[h->free_buckets_position]].
- chained_entry_index = *ei;
-
- /* Move pointer */
- h->free_buckets_position++;
- }
-
- /* Get the two indexes where to look at. */
- u32 bi0 = h->entries[*ei].chained_entry_index +
- (hash >> (32 - FLOWHASH_ENTRIES_PER_BUCKETS_LOG));
- u32 bi1 = bi0 + 1;
- bi1 = (bi0 & (FLOWHASH_ENTRIES_PER_BUCKETS - 1)) ? bi1 :
- bi1 - FLOWHASH_ENTRIES_PER_BUCKETS;
-
- /* It is possible that we wait while comparing bi0 key.
- * It's better to prefetch bi1 so we don't wait twice. */
- CLIB_PREFETCH(&h->entries[bi1], sizeof (h->entries[0]), READ);
-
- if (FV(flowhash_cmp_key)(&h->entries[bi0].key, k) == 0)
- {
- *ei = bi0;
- return;
- }
-
- if (FV(flowhash_cmp_key)(&h->entries[bi1].key, k) == 0)
- {
- *ei = bi1;
- return;
- }
-
- if (h->entries[*ei].timeout >= time_now)
- {
- *ei = FLOWHASH_INVALID_ENTRY_INDEX;
- *ei = (time_now > h->entries[bi0].timeout) ? bi0 : *ei;
- *ei = (time_now > h->entries[bi1].timeout) ? bi1 : *ei;
- }
-
- FV(flowhash_cpy_key)(&h->entries[*ei].key, k);
-}
-
-static_always_inline void
-FV(flowhash_gc)(FVT(flowhash) *h, u32 time_now,
- u32 *freed_index, u32 *freed_len)
-{
- u32 ei;
- if (freed_index)
- *freed_len = 0;
-
- if (PREDICT_FALSE(h->collision_buckets_mask == (((u32)0) - 1)))
- return;
-
- /* prefetch two rounds in advance */
- ei = 2 + h->fixed_entries_mask +
- ((h->gc_counter + 2) & h->collision_buckets_mask) *
- FLOWHASH_ENTRIES_PER_BUCKETS;
- CLIB_PREFETCH(&h->entries[ei], sizeof (h->entries[0]), READ);
-
- /* prefetch one round in advance */
- ei = 2 + h->fixed_entries_mask +
- ((h->gc_counter + 1) & h->collision_buckets_mask) *
- FLOWHASH_ENTRIES_PER_BUCKETS;
- if (h->entries[ei].chained_entry_index != FLOWHASH_INVALID_ENTRY_INDEX)
- {
- CLIB_PREFETCH(&h->entries[ei], 4 * CLIB_CACHE_LINE_BYTES, READ);
- }
-
- /* do GC */
- ei = 2 + h->fixed_entries_mask +
- ((h->gc_counter) & h->collision_buckets_mask) *
- FLOWHASH_ENTRIES_PER_BUCKETS;
- if (h->entries[ei].chained_entry_index != FLOWHASH_INVALID_ENTRY_INDEX)
- {
- u8 found = 0;
- int i;
- for (i=0; i<FLOWHASH_ENTRIES_PER_BUCKETS; i++)
- {
- if (time_now <= h->entries[ei + i].timeout)
- {
- found = 1;
- break;
- }
- }
-
- if (!found)
- {
- /* Tell caller we freed this */
- if (freed_index)
- {
- *freed_index = ei;
- *freed_len = FLOWHASH_ENTRIES_PER_BUCKETS;
- }
- /* The bucket is not used. Let's free it. */
- h->free_buckets_position--;
- /* Reset forward link */
- h->entries[h->entries[ei].chained_entry_index].chained_entry_index =
- FLOWHASH_INVALID_ENTRY_INDEX;
- /* Reset back link */
- h->entries[ei].chained_entry_index = FLOWHASH_INVALID_ENTRY_INDEX;
- /* Free element */
- h->free_buckets_indices[h->free_buckets_position] = ei;
- /* Count the garbage collection event */
- h->garbage_collection_counter++;
- }
- }
-
- h->gc_counter++;
-}
-
-static_always_inline
-u32 FV(flowhash_elts)(FVT(flowhash) *h, u32 time_now)
-{
- u32 tot = 0;
- u32 ei;
-
- flowhash_foreach_valid_entry(h, ei, time_now)
- tot++;
-
- return tot;
-}
-
-#endif /* __included_flowhash_template_h__ */
diff --git a/src/vppinfra/pfhash.h b/src/vppinfra/pfhash.h
deleted file mode 100644
index 2884fa81cf9..00000000000
--- a/src/vppinfra/pfhash.h
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- Copyright (c) 2013 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.
-*/
-
-#ifndef included_clib_pfhash_h
-#define included_clib_pfhash_h
-
-
-#include <vppinfra/clib.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/pool.h>
-
-#if defined(CLIB_HAVE_VEC128) && ! defined (__ALTIVEC__)
-
-typedef struct
-{
- /* 3 x 16 = 48 key bytes */
- union
- {
- u32x4 k_u32x4[3];
- u64 k_u64[6];
- } kb;
- /* 3 x 4 = 12 value bytes */
- u32 values[3];
- u32 pad;
-} pfhash_kv_16_t;
-
-typedef struct
-{
- /* 5 x 8 = 40 key bytes */
- union
- {
- u64 k_u64[5];
- } kb;
-
- /* 5 x 4 = 20 value bytes */
- u32 values[5];
- u32 pad;
-} pfhash_kv_8_t;
-
-typedef struct
-{
- /* 4 x 8 = 32 key bytes */
- union
- {
- u64 k_u64[4];
- } kb;
-
- /* 4 x 8 = 32 value bytes */
- u64 values[4];
-} pfhash_kv_8v8_t;
-
-typedef struct
-{
- /* 8 x 4 = 32 key bytes */
- union
- {
- u32x4 k_u32x4[2];
- u32 kb[8];
- } kb;
-
- /* 8 x 4 = 32 value bytes */
- u32 values[8];
-} pfhash_kv_4_t;
-
-typedef union
-{
- pfhash_kv_16_t kv16;
- pfhash_kv_8_t kv8;
- pfhash_kv_8v8_t kv8v8;
- pfhash_kv_4_t kv4;
-} pfhash_kv_t;
-
-typedef struct
-{
- /* Bucket vector */
- u32 *buckets;
-#define PFHASH_BUCKET_OVERFLOW (u32)~0
-
- /* Pool of key/value pairs */
- pfhash_kv_t *kvp;
-
- /* overflow plain-o-hash */
- uword *overflow_hash;
-
- /* Pretty-print name */
- u8 *name;
-
- u32 key_size;
- u32 value_size;
-
- u32 overflow_count;
- u32 nitems;
- u32 nitems_in_overflow;
-} pfhash_t;
-
-void pfhash_init (pfhash_t * p, char *name, u32 key_size, u32 value_size,
- u32 nbuckets);
-void pfhash_free (pfhash_t * p);
-u64 pfhash_get (pfhash_t * p, u32 bucket, void *key);
-void pfhash_set (pfhash_t * p, u32 bucket, void *key, void *value);
-void pfhash_unset (pfhash_t * p, u32 bucket, void *key);
-
-format_function_t format_pfhash;
-
-static inline void
-pfhash_prefetch_bucket (pfhash_t * p, u32 bucket)
-{
- CLIB_PREFETCH (&p->buckets[bucket], CLIB_CACHE_LINE_BYTES, LOAD);
-}
-
-static inline u32
-pfhash_read_bucket_prefetch_kv (pfhash_t * p, u32 bucket)
-{
- u32 bucket_contents = p->buckets[bucket];
- if (PREDICT_TRUE ((bucket_contents & PFHASH_BUCKET_OVERFLOW) == 0))
- CLIB_PREFETCH (&p->kvp[bucket_contents], CLIB_CACHE_LINE_BYTES, LOAD);
- return bucket_contents;
-}
-
-/*
- * pfhash_search_kv_16
- * See if the supplied 16-byte key matches one of three 16-byte (key,value) pairs.
- * Return the indicated value, or ~0 if no match
- *
- * Note: including the overflow test, the fast path is 35 instrs
- * on x86_64. Elves will steal your keyboard in the middle of the night if
- * you "improve" it without checking the generated code!
- */
-static inline u32
-pfhash_search_kv_16 (pfhash_t * p, u32 bucket_contents, u32x4 * key)
-{
- u32x4 diff0, diff1, diff2;
- u32 is_equal0, is_equal1, is_equal2;
- u32 no_match;
- pfhash_kv_16_t *kv;
- u32 rv;
-
- if (PREDICT_FALSE (bucket_contents == PFHASH_BUCKET_OVERFLOW))
- {
- uword *hp;
- hp = hash_get_mem (p->overflow_hash, key);
- if (hp)
- return hp[0];
- return (u32) ~ 0;
- }
-
- kv = &p->kvp[bucket_contents].kv16;
-
- diff0 = u32x4_sub (kv->kb.k_u32x4[0], key[0]);
- diff1 = u32x4_sub (kv->kb.k_u32x4[1], key[0]);
- diff2 = u32x4_sub (kv->kb.k_u32x4[2], key[0]);
-
- no_match = is_equal0 = (i16) u32x4_zero_byte_mask (diff0);
- is_equal1 = (i16) u32x4_zero_byte_mask (diff1);
- no_match |= is_equal1;
- is_equal2 = (i16) u32x4_zero_byte_mask (diff2);
- no_match |= is_equal2;
- /* If any of the three items matched, no_match will be zero after this line */
- no_match = ~no_match;
-
- rv = (is_equal0 & kv->values[0])
- | (is_equal1 & kv->values[1]) | (is_equal2 & kv->values[2]) | no_match;
-
- return rv;
-}
-
-static inline u32
-pfhash_search_kv_8 (pfhash_t * p, u32 bucket_contents, u64 * key)
-{
- pfhash_kv_8_t *kv;
- u32 rv = (u32) ~ 0;
-
- if (PREDICT_FALSE (bucket_contents == PFHASH_BUCKET_OVERFLOW))
- {
- uword *hp;
- hp = hash_get_mem (p->overflow_hash, key);
- if (hp)
- return hp[0];
- return (u32) ~ 0;
- }
-
- kv = &p->kvp[bucket_contents].kv8;
-
- rv = (kv->kb.k_u64[0] == key[0]) ? kv->values[0] : rv;
- rv = (kv->kb.k_u64[1] == key[0]) ? kv->values[1] : rv;
- rv = (kv->kb.k_u64[2] == key[0]) ? kv->values[2] : rv;
- rv = (kv->kb.k_u64[3] == key[0]) ? kv->values[3] : rv;
- rv = (kv->kb.k_u64[4] == key[0]) ? kv->values[4] : rv;
-
- return rv;
-}
-
-static inline u64
-pfhash_search_kv_8v8 (pfhash_t * p, u32 bucket_contents, u64 * key)
-{
- pfhash_kv_8v8_t *kv;
- u64 rv = (u64) ~ 0;
-
- if (PREDICT_FALSE (bucket_contents == PFHASH_BUCKET_OVERFLOW))
- {
- uword *hp;
- hp = hash_get_mem (p->overflow_hash, key);
- if (hp)
- return hp[0];
- return (u64) ~ 0;
- }
-
- kv = &p->kvp[bucket_contents].kv8v8;
-
- rv = (kv->kb.k_u64[0] == key[0]) ? kv->values[0] : rv;
- rv = (kv->kb.k_u64[1] == key[0]) ? kv->values[1] : rv;
- rv = (kv->kb.k_u64[2] == key[0]) ? kv->values[2] : rv;
- rv = (kv->kb.k_u64[3] == key[0]) ? kv->values[3] : rv;
-
- return rv;
-}
-
-static inline u32
-pfhash_search_kv_4 (pfhash_t * p, u32 bucket_contents, u32 * key)
-{
- u32x4 vector_key;
- u32x4 is_equal[2];
- u32 zbm[2], winner_index;
- pfhash_kv_4_t *kv;
-
- if (PREDICT_FALSE (bucket_contents == PFHASH_BUCKET_OVERFLOW))
- {
- uword *hp;
- hp = hash_get_mem (p->overflow_hash, key);
- if (hp)
- return hp[0];
- return (u32) ~ 0;
- }
-
- kv = &p->kvp[bucket_contents].kv4;
-
- vector_key = u32x4_splat (key[0]);
-
- is_equal[0] = (kv->kb.k_u32x4[0] == vector_key);
- is_equal[1] = (kv->kb.k_u32x4[1] == vector_key);
- zbm[0] = ~u32x4_zero_byte_mask (is_equal[0]) & 0xFFFF;
- zbm[1] = ~u32x4_zero_byte_mask (is_equal[1]) & 0xFFFF;
-
- if (PREDICT_FALSE ((zbm[0] == 0) && (zbm[1] == 0)))
- return (u32) ~ 0;
-
- winner_index = min_log2 (zbm[0]) >> 2;
- winner_index = zbm[1] ? (4 + (min_log2 (zbm[1]) >> 2)) : winner_index;
-
- return kv->values[winner_index];
-}
-
-#endif /* CLIB_HAVE_VEC128 */
-
-#endif /* included_clib_pfhash_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/phash.c b/src/vppinfra/phash.c
deleted file mode 100644
index 52c29b33f78..00000000000
--- a/src/vppinfra/phash.c
+++ /dev/null
@@ -1,1017 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2005 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-/* This is all stolen from Bob Jenkins and reworked for clib. Thanks
- once again Bob for the great work. */
-
-/*
-------------------------------------------------------------------------------
-perfect.c: code to generate code for a hash for perfect hashing.
-(c) Bob Jenkins, September 1996, December 1999
-You may use this code in any way you wish, and it is free. No warranty.
-I hereby place this in the public domain.
-Source is http://burtleburtle.net/bob/c/perfect.c
-
-This generates a minimal perfect hash function. That means, given a
-set of n keys, this determines a hash function that maps each of
-those keys into a value in 0..n-1 with no collisions.
-
-The perfect hash function first uses a normal hash function on the key
-to determine (a,b) such that the pair (a,b) is distinct for all
-keys, then it computes a^scramble[tab[b]] to get the final perfect hash.
-tab[] is an array of 1-byte values and scramble[] is a 256-term array of
-2-byte or 4-byte values. If there are n keys, the length of tab[] is a
-power of two between n/3 and n.
-
-I found the idea of computing distinct (a,b) values in "Practical minimal
-perfect hash functions for large databases", Fox, Heath, Chen, and Daoud,
-Communications of the ACM, January 1992. They found the idea in Chichelli
-(CACM Jan 1980). Beyond that, our methods differ.
-
-The key is hashed to a pair (a,b) where a in 0..*alen*-1 and b in
-0..*blen*-1. A fast hash function determines both a and b
-simultaneously. Any decent hash function is likely to produce
-hashes so that (a,b) is distinct for all pairs. I try the hash
-using different values of *salt* until all pairs are distinct.
-
-The final hash is (a XOR scramble[tab[b]]). *scramble* is a
-predetermined mapping of 0..255 into 0..smax-1. *tab* is an
-array that we fill in in such a way as to make the hash perfect.
-
-First we fill in all values of *tab* that are used by more than one
-key. We try all possible values for each position until one works.
-
-This leaves m unmapped keys and m values that something could hash to.
-If you treat unmapped keys as lefthand nodes and unused hash values
-as righthand nodes, and draw a line connecting each key to each hash
-value it could map to, you get a bipartite graph. We attempt to
-find a perfect matching in this graph. If we succeed, we have
-determined a perfect hash for the whole set of keys.
-
-*scramble* is used because (a^tab[i]) clusters keys around *a*.
-------------------------------------------------------------------------------
-*/
-
-#include <vppinfra/bitmap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/phash.h>
-#include <vppinfra/random.h>
-
-static void
-init_keys_direct_u32 (phash_main_t * pm)
-{
- int n_keys_left, b_mask, a_shift;
- u32 seed;
- phash_key_t *k;
-
- seed = pm->hash_seed;
- b_mask = (1 << pm->b_bits) - 1;
- a_shift = BITS (seed) - pm->a_bits;
-
- k = pm->keys;
- n_keys_left = vec_len (pm->keys);
-
- while (n_keys_left >= 2)
- {
- u32 x0, y0, z0;
- u32 x1, y1, z1;
-
- x0 = y0 = z0 = seed;
- x1 = y1 = z1 = seed;
- x0 += (u32) k[0].key;
- x1 += (u32) k[1].key;
-
- hash_mix32 (x0, y0, z0);
- hash_mix32 (x1, y1, z1);
-
- k[0].b = z0 & b_mask;
- k[1].b = z1 & b_mask;
- k[0].a = z0 >> a_shift;
- k[1].a = z1 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = k[1].a = 0;
-
- k += 2;
- n_keys_left -= 2;
- }
-
- if (n_keys_left >= 1)
- {
- u32 x0, y0, z0;
-
- x0 = y0 = z0 = seed;
- x0 += k[0].key;
-
- hash_mix32 (x0, y0, z0);
-
- k[0].b = z0 & b_mask;
- k[0].a = z0 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = 0;
-
- k += 1;
- n_keys_left -= 1;
- }
-}
-
-static void
-init_keys_direct_u64 (phash_main_t * pm)
-{
- int n_keys_left, b_mask, a_shift;
- u64 seed;
- phash_key_t *k;
-
- seed = pm->hash_seed;
- b_mask = (1 << pm->b_bits) - 1;
- a_shift = BITS (seed) - pm->a_bits;
-
- k = pm->keys;
- n_keys_left = vec_len (pm->keys);
-
- while (n_keys_left >= 2)
- {
- u64 x0, y0, z0;
- u64 x1, y1, z1;
-
- x0 = y0 = z0 = seed;
- x1 = y1 = z1 = seed;
- x0 += (u64) k[0].key;
- x1 += (u64) k[1].key;
-
- hash_mix64 (x0, y0, z0);
- hash_mix64 (x1, y1, z1);
-
- k[0].b = z0 & b_mask;
- k[1].b = z1 & b_mask;
- k[0].a = z0 >> a_shift;
- k[1].a = z1 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = k[1].a = 0;
-
- k += 2;
- n_keys_left -= 2;
- }
-
- if (n_keys_left >= 1)
- {
- u64 x0, y0, z0;
-
- x0 = y0 = z0 = seed;
- x0 += k[0].key;
-
- hash_mix64 (x0, y0, z0);
-
- k[0].b = z0 & b_mask;
- k[0].a = z0 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = 0;
-
- k += 1;
- n_keys_left -= 1;
- }
-}
-
-static void
-init_keys_indirect_u32 (phash_main_t * pm)
-{
- int n_keys_left, b_mask, a_shift;
- u32 seed;
- phash_key_t *k;
-
- seed = pm->hash_seed;
- b_mask = (1 << pm->b_bits) - 1;
- a_shift = BITS (seed) - pm->a_bits;
-
- k = pm->keys;
- n_keys_left = vec_len (pm->keys);
-
- while (n_keys_left >= 2)
- {
- u32 xyz[6];
- u32 x0, y0, z0;
- u32 x1, y1, z1;
-
- pm->key_seed2 (pm->private, k[0].key, k[1].key, &xyz);
-
- x0 = y0 = z0 = seed;
- x1 = y1 = z1 = seed;
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
- x1 += xyz[3];
- y1 += xyz[4];
- z1 += xyz[5];
-
- hash_mix32 (x0, y0, z0);
- hash_mix32 (x1, y1, z1);
-
- k[0].b = z0 & b_mask;
- k[1].b = z1 & b_mask;
- k[0].a = z0 >> a_shift;
- k[1].a = z1 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = k[1].a = 0;
-
- k += 2;
- n_keys_left -= 2;
- }
-
- if (n_keys_left >= 1)
- {
- u32 xyz[3];
- u32 x0, y0, z0;
-
- pm->key_seed1 (pm->private, k[0].key, &xyz);
-
- x0 = y0 = z0 = seed;
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
-
- hash_mix32 (x0, y0, z0);
-
- k[0].b = z0 & b_mask;
- k[0].a = z0 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = 0;
-
- k += 1;
- n_keys_left -= 1;
- }
-}
-
-static void
-init_keys_indirect_u64 (phash_main_t * pm)
-{
- int n_keys_left, b_mask, a_shift;
- u64 seed;
- phash_key_t *k;
-
- seed = pm->hash_seed;
- b_mask = (1 << pm->b_bits) - 1;
- a_shift = BITS (seed) - pm->a_bits;
-
- k = pm->keys;
- n_keys_left = vec_len (pm->keys);
-
- while (n_keys_left >= 2)
- {
- u64 xyz[6];
- u64 x0, y0, z0;
- u64 x1, y1, z1;
-
- pm->key_seed2 (pm->private, k[0].key, k[1].key, &xyz);
-
- x0 = y0 = z0 = seed;
- x1 = y1 = z1 = seed;
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
- x1 += xyz[3];
- y1 += xyz[4];
- z1 += xyz[5];
-
- hash_mix64 (x0, y0, z0);
- hash_mix64 (x1, y1, z1);
-
- k[0].b = z0 & b_mask;
- k[1].b = z1 & b_mask;
- k[0].a = z0 >> a_shift;
- k[1].a = z1 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = k[1].a = 0;
-
- k += 2;
- n_keys_left -= 2;
- }
-
- if (n_keys_left >= 1)
- {
- u64 xyz[3];
- u64 x0, y0, z0;
-
- pm->key_seed1 (pm->private, k[0].key, &xyz);
-
- x0 = y0 = z0 = seed;
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
-
- hash_mix64 (x0, y0, z0);
-
- k[0].b = z0 & b_mask;
- k[0].a = z0 >> a_shift;
- if (PREDICT_FALSE (a_shift >= BITS (z0)))
- k[0].a = 0;
-
- k += 1;
- n_keys_left -= 1;
- }
-}
-
-/*
- * insert keys into table according to key->b
- * check if the initial hash might work
- */
-static int
-init_tabb (phash_main_t * pm)
-{
- int no_collisions;
- phash_tabb_t *tb;
- phash_key_t *k, *l;
-
- if (pm->key_seed1)
- {
- if (pm->flags & PHASH_FLAG_MIX64)
- init_keys_indirect_u64 (pm);
- else
- init_keys_indirect_u32 (pm);
- }
- else
- {
- if (pm->flags & PHASH_FLAG_MIX64)
- init_keys_direct_u64 (pm);
- else
- init_keys_direct_u32 (pm);
- }
-
- if (!pm->tabb)
- vec_resize (pm->tabb, 1 << pm->b_bits);
- else
- vec_foreach (tb, pm->tabb) phash_tabb_free (tb);
-
- /* Two keys with the same (a,b) guarantees a collision */
- no_collisions = 1;
- vec_foreach (k, pm->keys)
- {
- u32 i, *ki;
-
- tb = pm->tabb + k->b;
- ki = tb->keys;
- for (i = 0; i < vec_len (ki); i++)
- {
- l = pm->keys + ki[i];
- if (k->a == l->a)
- {
- /* Given keys are supposed to be unique. */
- if (pm->key_is_equal
- && pm->key_is_equal (pm->private, l->key, k->key))
- clib_error ("duplicate keys");
- no_collisions = 0;
- goto done;
- }
- }
-
- vec_add1 (tb->keys, k - pm->keys);
- }
-
-done:
- return no_collisions;
-}
-
-/* Try to apply an augmenting list */
-static int
-apply (phash_main_t * pm, u32 tail, u32 rollback)
-{
- phash_key_t *k;
- phash_tabb_t *pb;
- phash_tabq_t *q_child, *q_parent;
- u32 ki, i, hash, child, parent;
- u32 stabb; /* scramble[tab[b]] */
- int no_collision;
-
- no_collision = 1;
-
- /* Walk from child to parent until root is reached. */
- for (child = tail - 1; child; child = parent)
- {
- q_child = &pm->tabq[child];
- parent = q_child->parent_q;
- q_parent = &pm->tabq[parent];
-
- /* find parent's list of siblings */
- ASSERT (q_parent->b_q < vec_len (pm->tabb));
- pb = pm->tabb + q_parent->b_q;
-
- /* erase old hash values */
- stabb = pm->scramble[pb->val_b];
- for (i = 0; i < vec_len (pb->keys); i++)
- {
- ki = pb->keys[i];
- k = pm->keys + ki;
- hash = k->a ^ stabb;
-
- /* Erase hash for all of child's siblings. */
- if (ki == pm->tabh[hash])
- pm->tabh[hash] = ~0;
- }
-
- /* change pb->val_b, which will change the hashes of all parent siblings */
- pb->val_b = rollback ? q_child->oldval_q : q_child->newval_q;
-
- /* set new hash values */
- stabb = pm->scramble[pb->val_b];
- for (i = 0; i < vec_len (pb->keys); i++)
- {
- ki = pb->keys[i];
- k = pm->keys + ki;
-
- hash = k->a ^ stabb;
- if (rollback)
- {
- if (parent == 0)
- continue; /* root never had a hash */
- }
- else if (pm->tabh[hash] != ~0)
- {
- /* Very rare case: roll back any changes. */
- apply (pm, tail, /* rollback changes */ 1);
- no_collision = 0;
- goto done;
- }
- pm->tabh[hash] = ki;
- }
- }
-
-done:
- return no_collision;
-}
-
-
-/*
--------------------------------------------------------------------------------
-augment(): Add item to the mapping.
-
-Construct a spanning tree of *b*s with *item* as root, where each
-parent can have all its hashes changed (by some new val_b) with
-at most one collision, and each child is the b of that collision.
-
-I got this from Tarjan's "Data Structures and Network Algorithms". The
-path from *item* to a *b* that can be remapped with no collision is
-an "augmenting path". Change values of tab[b] along the path so that
-the unmapped key gets mapped and the unused hash value gets used.
-
-Assuming 1 key per b, if m out of n hash values are still unused,
-you should expect the transitive closure to cover n/m nodes before
-an unused node is found. Sum(i=1..n)(n/i) is about nlogn, so expect
-this approach to take about nlogn time to map all single-key b's.
--------------------------------------------------------------------------------
-
-high_water: a value higher than any now in tabb[].water_b.
-*/
-static int
-augment (phash_main_t * pm, u32 b_root, u32 high_water)
-{
- u32 q; /* current position walking through the queue */
- u32 tail; /* tail of the queue. 0 is the head of the queue. */
- phash_tabb_t *tb_parent, *tb_child, *tb_hit;
- phash_key_t *k_parent, *k_child;
- u32 v, v_limit; /* possible value for myb->val_b */
- u32 i, ki, hash;
-
- v_limit =
- 1 << ((pm->flags & PHASH_FLAG_USE_SCRAMBLE) ? pm->s_bits : BITS (u8));
-
- /* Initialize the root of the spanning tree. */
- pm->tabq[0].b_q = b_root;
- tail = 1;
-
- /* construct the spanning tree by walking the queue, add children to tail */
- for (q = 0; q < tail; q++)
- {
- if ((pm->flags & PHASH_FLAG_FAST_MODE)
- && !(pm->flags & PHASH_FLAG_MINIMAL) && q == 1)
- break; /* don't do transitive closure */
-
- tb_parent = pm->tabb + pm->tabq[q].b_q; /* the b for this node */
-
- for (v = 0; v < v_limit; v++)
- {
- tb_child = 0;
-
- for (i = 0; i < vec_len (tb_parent->keys); i++)
- {
- ki = tb_parent->keys[i];
- k_parent = pm->keys + ki;
-
- hash = k_parent->a ^ pm->scramble[v];
- if (hash >= pm->hash_max)
- goto try_next_v; /* hash code out of bounds => we can't use this v */
-
- ki = pm->tabh[hash];
- if (ki == ~0)
- continue;
-
- k_child = pm->keys + ki;
- tb_hit = pm->tabb + k_child->b;
-
- if (tb_child)
- {
- /* Hit at most one child b. */
- if (tb_child == tb_hit)
- goto try_next_v;
- }
- else
- {
- /* Remember this as child b. */
- tb_child = tb_hit;
- if (tb_hit->water_b == high_water)
- goto try_next_v; /* already explored */
- }
- }
-
- /* tb_parent with v has either one or zero collisions. */
-
- /* add child b to the queue of reachable things */
- if (tb_child)
- tb_child->water_b = high_water;
- pm->tabq[tail].b_q = tb_child ? tb_child - pm->tabb : ~0;
- pm->tabq[tail].newval_q = v; /* how to make parent (myb) use this hash */
- pm->tabq[tail].oldval_q = tb_parent->val_b; /* need this for rollback */
- pm->tabq[tail].parent_q = q;
- ++tail;
-
- /* Found a v with no collisions? */
- if (!tb_child)
- {
- /* Try to apply the augmenting path. */
- if (apply (pm, tail, /* rollback */ 0))
- return 1; /* success, item was added to the perfect hash */
- --tail; /* don't know how to handle such a child! */
- }
-
- try_next_v:
- ;
- }
- }
- return 0;
-}
-
-
-static phash_tabb_t *sort_tabb;
-
-static int
-phash_tabb_compare (void *a1, void *a2)
-{
- u32 *b1 = a1;
- u32 *b2 = a2;
- phash_tabb_t *tb1, *tb2;
-
- tb1 = sort_tabb + b1[0];
- tb2 = sort_tabb + b2[0];
-
- return ((int) vec_len (tb2->keys) - (int) vec_len (tb1->keys));
-}
-
-/* find a mapping that makes this a perfect hash */
-static int
-perfect (phash_main_t * pm)
-{
- u32 i;
-
- /* clear any state from previous attempts */
- if (vec_bytes (pm->tabh))
- clib_memset (pm->tabh, ~0, vec_bytes (pm->tabh));
-
- vec_validate (pm->tabb_sort, vec_len (pm->tabb) - 1);
- for (i = 0; i < vec_len (pm->tabb_sort); i++)
- pm->tabb_sort[i] = i;
-
- sort_tabb = pm->tabb;
-
- vec_sort_with_function (pm->tabb_sort, phash_tabb_compare);
-
- /* In descending order by number of keys, map all *b*s */
- for (i = 0; i < vec_len (pm->tabb_sort); i++)
- {
- if (!augment (pm, pm->tabb_sort[i], i + 1))
- return 0;
- }
-
- /* Success! We found a perfect hash of all keys into 0..nkeys-1. */
- return 1;
-}
-
-
-/*
- * Find initial a_bits = log2 (a_max), b_bits = log2 (b_max).
- * Initial a_max and b_max values were found empirically. Some factors:
- *
- * If s_max<256 there is no scramble, so tab[b] needs to cover 0..s_max-1.
- *
- * a_max and b_max must be powers of 2 because the values in 0..a_max-1 and
- * 0..b_max-1 are produced by applying a bitmask to the initial hash function.
- *
- * a_max must be less than s_max, in fact less than n_keys, because otherwise
- * there would often be no i such that a^scramble[i] is in 0..n_keys-1 for
- * all the *a*s associated with a given *b*, so there would be no legal
- * value to assign to tab[b]. This only matters when we're doing a minimal
- * perfect hash.
- *
- * It takes around 800 trials to find distinct (a,b) with nkey=s_max*(5/8)
- * and a_max*b_max = s_max*s_max/32.
- *
- * Values of b_max less than s_max/4 never work, and s_max/2 always works.
- *
- * We want b_max as small as possible because it is the number of bytes in
- * the huge array we must create for the perfect hash.
- *
- * When nkey <= s_max*(5/8), b_max=s_max/4 works much more often with
- * a_max=s_max/8 than with a_max=s_max/4. Above s_max*(5/8), b_max=s_max/4
- * doesn't seem to care whether a_max=s_max/8 or a_max=s_max/4. I think it
- * has something to do with 5/8 = 1/8 * 5. For example examine 80000,
- * 85000, and 90000 keys with different values of a_max. This only matters
- * if we're doing a minimal perfect hash.
- *
- * When a_max*b_max <= 1<<U32BITS, the initial hash must produce one integer.
- * Bigger than that it must produce two integers, which increases the
- * cost of the hash per character hashed.
- */
-static void
-guess_initial_parameters (phash_main_t * pm)
-{
- u32 s_bits, s_max, a_max, b_max, n_keys;
- int is_minimal, is_fast_mode;
- const u32 b_max_use_scramble_threshold = 4096;
-
- is_minimal = (pm->flags & PHASH_FLAG_MINIMAL) != 0;
- is_fast_mode = (pm->flags & PHASH_FLAG_FAST_MODE) != 0;
-
- n_keys = vec_len (pm->keys);
- s_bits = max_log2 (n_keys);
- s_max = 1 << s_bits;
- a_max = 0;
-
- if (is_minimal)
- {
- switch (s_bits)
- {
- case 0:
- a_max = 1;
- b_max = 1;
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- case 7:
- case 8:
- /*
- * Was: a_max = is_minimal ? s_max / 2 : s_max;
- * However, we know that is_minimal must be true, so the
- * if-arm of the ternary expression is always executed.
- */
- a_max = s_max / 2;
- b_max = s_max / 2;
- break;
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- case 16:
- case 17:
- if (is_fast_mode)
- {
- a_max = s_max / 2;
- b_max = s_max / 4;
- }
- else if (s_max / 4 < b_max_use_scramble_threshold)
- {
- if (n_keys <= s_max * 0.52)
- a_max = b_max = s_max / 8;
- else
- a_max = b_max = s_max / 4;
- }
- else
- {
- a_max = ((n_keys <= s_max * (5.0 / 8.0)) ? s_max / 8 :
- (n_keys <=
- s_max * (3.0 / 4.0)) ? s_max / 4 : s_max / 2);
- b_max = s_max / 4; /* always give the small size a shot */
- }
- break;
- case 18:
- if (is_fast_mode)
- a_max = b_max = s_max / 2;
- else
- {
- a_max = s_max / 8; /* never require the multiword hash */
- b_max = (n_keys <= s_max * (5.0 / 8.0)) ? s_max / 4 : s_max / 2;
- }
- break;
- case 19:
- case 20:
- a_max = (n_keys <= s_max * (5.0 / 8.0)) ? s_max / 8 : s_max / 2;
- b_max = (n_keys <= s_max * (5.0 / 8.0)) ? s_max / 4 : s_max / 2;
- break;
- default:
- /* Just find a hash as quick as possible.
- We'll be thrashing virtual memory at this size. */
- a_max = b_max = s_max / 2;
- break;
- }
- }
- else
- {
- /* Non-minimal perfect hash. */
- if (is_fast_mode && n_keys > s_max * 0.8)
- {
- s_max *= 2;
- s_bits += 1;
- }
-
- if (s_max / 4 <= (1 << 14))
- b_max = ((n_keys <= s_max * 0.56) ? s_max / 32 :
- (n_keys <= s_max * 0.74) ? s_max / 16 : s_max / 8);
- else
- b_max = ((n_keys <= s_max * 0.6) ? s_max / 16 :
- (n_keys <= s_max * 0.8) ? s_max / 8 : s_max / 4);
-
- if (is_fast_mode && b_max < s_max / 8)
- b_max = s_max / 8;
-
- if (a_max < 1)
- a_max = 1;
- if (b_max < 1)
- b_max = 1;
- }
-
- ASSERT (s_max == (1 << s_bits));
- ASSERT (is_pow2 (a_max));
- ASSERT (is_pow2 (b_max));
- pm->s_bits = s_bits;
- pm->a_bits = min_log2 (a_max);
- pm->b_bits = min_log2 (b_max);
- if (b_max >= b_max_use_scramble_threshold)
- pm->flags |= PHASH_FLAG_USE_SCRAMBLE;
-}
-
-/* compute p(x), where p is a permutation of 0..(1<<nbits)-1 */
-/* permute(0)=0. This is intended and useful. */
-always_inline u32
-scramble_permute (u32 x, u32 nbits)
-{
- int i;
- int mask = (1 << nbits) - 1;
- int const2 = 1 + nbits / 2;
- int const3 = 1 + nbits / 3;
- int const4 = 1 + nbits / 4;
- int const5 = 1 + nbits / 5;
- for (i = 0; i < 20; i++)
- {
- x = (x + (x << const2)) & mask;
- x = (x ^ (x >> const3));
- x = (x + (x << const4)) & mask;
- x = (x ^ (x >> const5));
- }
- return x;
-}
-
-/* initialize scramble[] with distinct random values in 0..smax-1 */
-static void
-scramble_init (phash_main_t * pm)
-{
- u32 i;
-
- /* fill scramble[] with distinct random integers in 0..smax-1 */
- vec_validate (pm->scramble, (1 << (pm->s_bits < 8 ? 8 : pm->s_bits)) - 1);
- for (i = 0; i < vec_len (pm->scramble); i++)
- pm->scramble[i] = scramble_permute (i, pm->s_bits);
-}
-
-/* Try to find a perfect hash function. */
-clib_error_t *
-phash_find_perfect_hash (phash_main_t * pm)
-{
- clib_error_t *error = 0;
- u32 max_a_bits, n_tries_this_a_b, want_minimal;
-
- /* guess initial values for s_max, a_max and b_max */
- guess_initial_parameters (pm);
-
- want_minimal = pm->flags & PHASH_FLAG_MINIMAL;
-
-new_s:
- if (pm->b_bits == 0)
- pm->a_bits = pm->s_bits;
-
- max_a_bits = pm->s_bits - want_minimal;
- if (max_a_bits < 1)
- max_a_bits = 1;
-
- pm->hash_max = want_minimal ? vec_len (pm->keys) : (1 << pm->s_bits);
-
- scramble_init (pm);
-
- /* Allocate working memory. */
- vec_free (pm->tabh);
- vec_validate_init_empty (pm->tabh, pm->hash_max - 1, ~0);
- vec_free (pm->tabq);
- vec_validate (pm->tabq, 1 << pm->b_bits);
-
- /* Actually find the perfect hash */
- n_tries_this_a_b = 0;
- while (1)
- {
- /* Choose random hash seeds until keys become unique. */
- pm->hash_seed = random_u64 (&pm->random_seed);
- pm->n_seed_trials++;
- if (init_tabb (pm))
- {
- /* Found unique (A, B). */
-
- /* Hash may already be perfect. */
- if (pm->b_bits == 0)
- goto done;
-
- pm->n_perfect_calls++;
- if (perfect (pm))
- goto done;
-
- goto increase_b;
- }
-
- /* Keep trying with different seed value. */
- n_tries_this_a_b++;
- if (n_tries_this_a_b < 2048)
- continue;
-
- /* Try to put more bits in (A,B) to make distinct (A,B) more likely */
- if (pm->a_bits < max_a_bits)
- pm->a_bits++;
- else if (pm->b_bits < pm->s_bits)
- {
- increase_b:
- vec_resize (pm->tabb, vec_len (pm->tabb));
- vec_resize (pm->tabq, vec_len (pm->tabq));
- pm->b_bits++;
- }
- else
- {
- /* Can't increase (A, B) any more, so try increasing S. */
- goto new_s;
- }
- }
-
-done:
- /* Construct mapping table for hash lookups. */
- if (!error)
- {
- u32 b, v;
-
- pm->a_shift = ((pm->flags & PHASH_FLAG_MIX64) ? 64 : 32) - pm->a_bits;
- pm->b_mask = (1 << pm->b_bits) - 1;
-
- vec_resize (pm->tab, vec_len (pm->tabb));
- for (b = 0; b < vec_len (pm->tabb); b++)
- {
- v = pm->tabb[b].val_b;
-
- /* Apply scramble now for small enough value of b_bits. */
- if (!(pm->flags & PHASH_FLAG_USE_SCRAMBLE))
- v = pm->scramble[v];
-
- pm->tab[b] = v;
- }
- }
-
- /* Free working memory. */
- phash_main_free_working_memory (pm);
-
- return error;
-}
-
-/* Slow hash computation for general keys. */
-uword
-phash_hash_slow (phash_main_t * pm, uword key)
-{
- u32 a, b, v;
-
- if (pm->flags & PHASH_FLAG_MIX64)
- {
- u64 x0, y0, z0;
-
- x0 = y0 = z0 = pm->hash_seed;
-
- if (pm->key_seed1)
- {
- u64 xyz[3];
- pm->key_seed1 (pm->private, key, &xyz);
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
- }
- else
- x0 += key;
-
- hash_mix64 (x0, y0, z0);
-
- a = z0 >> pm->a_shift;
- b = z0 & pm->b_mask;
- }
- else
- {
- u32 x0, y0, z0;
-
- x0 = y0 = z0 = pm->hash_seed;
-
- if (pm->key_seed1)
- {
- u32 xyz[3];
- pm->key_seed1 (pm->private, key, &xyz);
- x0 += xyz[0];
- y0 += xyz[1];
- z0 += xyz[2];
- }
- else
- x0 += key;
-
- hash_mix32 (x0, y0, z0);
-
- a = z0 >> pm->a_shift;
- b = z0 & pm->b_mask;
- }
-
- v = pm->tab[b];
- if (pm->flags & PHASH_FLAG_USE_SCRAMBLE)
- v = pm->scramble[v];
- return a ^ v;
-}
-
-/* Verify that perfect hash is perfect. */
-clib_error_t *
-phash_validate (phash_main_t * pm)
-{
- phash_key_t *k;
- uword *unique_bitmap = 0;
- clib_error_t *error = 0;
-
- vec_foreach (k, pm->keys)
- {
- uword h = phash_hash_slow (pm, k->key);
-
- if (h >= pm->hash_max)
- {
- error = clib_error_return (0, "hash out of range %wd", h);
- goto done;
- }
-
- if (clib_bitmap_get (unique_bitmap, h))
- {
- error = clib_error_return (0, "hash non-unique");
- goto done;
- }
-
- unique_bitmap = clib_bitmap_ori (unique_bitmap, h);
- }
-
-done:
- clib_bitmap_free (unique_bitmap);
- return error;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/phash.h b/src/vppinfra/phash.h
deleted file mode 100644
index 3dc59c724f7..00000000000
--- a/src/vppinfra/phash.h
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2005 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_phash_h
-#define included_phash_h
-
-#include <vppinfra/hash.h> /* for Bob's mixing functions */
-
-typedef struct
-{
- /* Maybe either pointer to vector or inline word. */
- uword key;
-
- /* Hash code (A, B). */
- u32 a, b;
-} phash_key_t;
-
-/* Table indexed by B. */
-typedef struct
-{
- /* Vector of key indices with this same value of B. */
- u32 *keys;
-
- /* hash=a^tabb[b].val_b */
- u32 val_b;
-
- /* High watermark of who has visited this map node. */
- u32 water_b;
-} phash_tabb_t;
-
-always_inline void
-phash_tabb_free (phash_tabb_t * b)
-{
- vec_free (b->keys);
- b->val_b = b->water_b = 0;
-}
-
-typedef struct
-{
- /* b that currently occupies this hash */
- u32 b_q;
-
- /* Queue position of parent that could use this hash. */
- u32 parent_q;
-
- /* What to change parent tab[b] to use this hash. */
- u32 newval_q;
-
- /* Original value of tab[b]. */
- u32 oldval_q;
-} phash_tabq_t;
-
-typedef struct
-{
- u8 a_bits, b_bits, s_bits, a_shift;
- u32 b_mask;
- u32 *tab;
- u32 *scramble;
-
- /* Seed value for hash mixer. */
- u64 hash_seed;
-
- u32 flags;
-
- /* Key functions want 64 bit keys.
- Use hash_mix64 rather than hash_mix32. */
-#define PHASH_FLAG_MIX64 (1 << 0)
-#define PHASH_FLAG_MIX32 (0 << 0)
-
- /* When b_bits is large enough (>= 12) we scramble. */
-#define PHASH_FLAG_USE_SCRAMBLE (1 << 1)
-
- /* Slow mode gives smaller tables but at the expense of more run time. */
-#define PHASH_FLAG_SLOW_MODE (0 << 2)
-#define PHASH_FLAG_FAST_MODE (1 << 2)
-
- /* Generate minimal perfect hash instead of perfect hash. */
-#define PHASH_FLAG_NON_MINIMAL (0 << 3)
-#define PHASH_FLAG_MINIMAL (1 << 3)
-
- /* vec_len (keys) for minimal hash;
- 1 << s_bits for non-minimal hash. */
- u32 hash_max;
-
- /* Vector of keys. */
- phash_key_t *keys;
-
- /* Used by callbacks to identify keys. */
- void *private;
-
- /* Key comparison callback. */
- int (*key_is_equal) (void *private, uword key1, uword key2);
-
- /* Callback to reduce single key -> hash seeds. */
- void (*key_seed1) (void *private, uword key, void *seed);
-
- /* Callback to reduce two key2 -> hash seeds. */
- void (*key_seed2) (void *private, uword key1, uword key2, void *seed);
-
- /* Stuff used to compute perfect hash. */
- u32 random_seed;
-
- /* Stuff indexed by B. */
- phash_tabb_t *tabb;
-
- /* Table of B ordered by number of keys in tabb[b]. */
- u32 *tabb_sort;
-
- /* Unique key (or ~0 if none) for a given hash
- H = A ^ scramble[tab[B].val_b]. */
- u32 *tabh;
-
- /* Stuff indexed by q. */
- phash_tabq_t *tabq;
-
- /* Stats. */
- u32 n_seed_trials, n_perfect_calls;
-} phash_main_t;
-
-always_inline void
-phash_main_free_working_memory (phash_main_t * pm)
-{
- vec_free (pm->tabb);
- vec_free (pm->tabq);
- vec_free (pm->tabh);
- vec_free (pm->tabb_sort);
- if (!(pm->flags & PHASH_FLAG_USE_SCRAMBLE))
- vec_free (pm->scramble);
-}
-
-always_inline void
-phash_main_free (phash_main_t * pm)
-{
- phash_main_free_working_memory (pm);
- vec_free (pm->tab);
- vec_free (pm->keys);
- clib_memset (pm, 0, sizeof (pm[0]));
-}
-
-/* Slow hash computation for general keys. */
-uword phash_hash_slow (phash_main_t * pm, uword key);
-
-/* Main routine to compute perfect hash. */
-clib_error_t *phash_find_perfect_hash (phash_main_t * pm);
-
-/* Validates that hash is indeed perfect. */
-clib_error_t *phash_validate (phash_main_t * pm);
-
-/* Unit test. */
-int phash_test_main (unformat_input_t * input);
-
-#endif /* included_phash_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/pipeline.h b/src/vppinfra/pipeline.h
deleted file mode 100644
index 5a9799b455e..00000000000
--- a/src/vppinfra/pipeline.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- * pipeline.h: software pipeline infrastructure
- *
- * Copyright (c) 2010 Eliot Dresselhaus
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef included_clib_pipeline_h
-#define included_clib_pipeline_h
-
-#define clib_pipeline_stage(F,TYPE,ARG,I,BODY) \
- always_inline void F##_inline (void * _, u32 I) \
- { TYPE ARG = _; { BODY; } } \
- never_inline void F##_no_inline (TYPE ARG, u32 I) \
- { F##_inline (ARG, I); }
-
-#define clib_pipeline_stage_static(F,TYPE,ARG,I,BODY) \
- static_always_inline void F##_inline (void * _, u32 I) \
- { TYPE ARG = _; { BODY; } } \
- never_inline void F##_no_inline (TYPE ARG, u32 I) \
- { F##_inline (ARG, I); }
-
-#define clib_pipeline_stage_no_inline(F,TYPE,ARG,I,BODY) \
- never_inline void F##_no_inline (void * _, u32 I) \
- { TYPE ARG = _; { BODY; } } \
- never_inline void F##_inline (TYPE ARG, u32 I) \
- { F##_no_inline (ARG, I); }
-
-#define _clib_pipeline_var(v) _clib_pipeline_##v
-
-#define clib_pipeline_stage_execute(F,A,I,S) \
- F##_##S (A, _clib_pipeline_var(i) - (I))
-
-#define clib_pipeline_main_stage(F,A,I) \
- clib_pipeline_stage_execute (F, A, I, inline)
-#define clib_pipeline_init_stage(F,A,I) \
- if (_clib_pipeline_var(i) >= (I)) clib_pipeline_stage_execute (F, A, I, no_inline)
-#define clib_pipeline_exit_stage(F,A,I) \
- if (_clib_pipeline_var(i) >= (I) && _clib_pipeline_var(i) - (I) < _clib_pipeline_var(n_vectors)) \
- clib_pipeline_stage_execute (F, A, I, no_inline)
-
-#define clib_pipeline_init_loop \
- for (_clib_pipeline_var(i) = 0; \
- _clib_pipeline_var(i) < \
- clib_min (_clib_pipeline_var(n_stages) - 1, \
- _clib_pipeline_var(n_vectors)); \
- _clib_pipeline_var(i)++)
-
-#define clib_pipeline_main_loop \
- for (; _clib_pipeline_var(i) < _clib_pipeline_var(n_vectors); \
- _clib_pipeline_var(i)++)
-
-#define clib_pipeline_exit_loop \
- for (; _clib_pipeline_var(i) < (_clib_pipeline_var(n_vectors) \
- + _clib_pipeline_var(n_stages) - 1); \
- _clib_pipeline_var(i)++)
-
-#define clib_pipeline_run_2_stage(N,ARG,STAGE0,STAGE1) \
-do { \
- uword _clib_pipeline_var(n_vectors) = (N); \
- uword _clib_pipeline_var(n_stages) = 2; \
- uword _clib_pipeline_var(i); \
- \
- clib_pipeline_init_loop \
- { \
- clib_pipeline_init_stage (STAGE0, ARG, 0); \
- } \
- \
- clib_pipeline_main_loop \
- { \
- clib_pipeline_main_stage (STAGE0, ARG, 0); \
- clib_pipeline_main_stage (STAGE1, ARG, 1); \
- } \
- \
- clib_pipeline_exit_loop \
- { \
- clib_pipeline_exit_stage (STAGE1, ARG, 1); \
- } \
-} while (0)
-
-#define clib_pipeline_run_3_stage(N,ARG,STAGE0,STAGE1,STAGE2) \
-do { \
- uword _clib_pipeline_var(n_vectors) = (N); \
- uword _clib_pipeline_var(n_stages) = 3; \
- uword _clib_pipeline_var(i); \
- \
- clib_pipeline_init_loop \
- { \
- clib_pipeline_init_stage (STAGE0, ARG, 0); \
- clib_pipeline_init_stage (STAGE1, ARG, 1); \
- } \
- \
- clib_pipeline_main_loop \
- { \
- clib_pipeline_main_stage (STAGE0, ARG, 0); \
- clib_pipeline_main_stage (STAGE1, ARG, 1); \
- clib_pipeline_main_stage (STAGE2, ARG, 2); \
- } \
- \
- clib_pipeline_exit_loop \
- { \
- clib_pipeline_exit_stage (STAGE1, ARG, 1); \
- clib_pipeline_exit_stage (STAGE2, ARG, 2); \
- } \
-} while (0)
-
-#define clib_pipeline_run_4_stage(N,ARG,STAGE0,STAGE1,STAGE2,STAGE3) \
-do { \
- uword _clib_pipeline_var(n_vectors) = (N); \
- uword _clib_pipeline_var(n_stages) = 4; \
- uword _clib_pipeline_var(i); \
- \
- clib_pipeline_init_loop \
- { \
- clib_pipeline_init_stage (STAGE0, ARG, 0); \
- clib_pipeline_init_stage (STAGE1, ARG, 1); \
- clib_pipeline_init_stage (STAGE2, ARG, 2); \
- } \
- \
- clib_pipeline_main_loop \
- { \
- clib_pipeline_main_stage (STAGE0, ARG, 0); \
- clib_pipeline_main_stage (STAGE1, ARG, 1); \
- clib_pipeline_main_stage (STAGE2, ARG, 2); \
- clib_pipeline_main_stage (STAGE3, ARG, 3); \
- } \
- \
- clib_pipeline_exit_loop \
- { \
- clib_pipeline_exit_stage (STAGE1, ARG, 1); \
- clib_pipeline_exit_stage (STAGE2, ARG, 2); \
- clib_pipeline_exit_stage (STAGE3, ARG, 3); \
- } \
-} while (0)
-
-#endif /* included_clib_pipeline_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/qhash.c b/src/vppinfra/qhash.c
deleted file mode 100644
index 3b5a175065d..00000000000
--- a/src/vppinfra/qhash.c
+++ /dev/null
@@ -1,859 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2006 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include <vppinfra/qhash.h>
-
-#define QHASH_ALL_VALID ((1 << QHASH_KEYS_PER_BUCKET) - 1)
-
-void *
-_qhash_resize (void *v, uword length, uword elt_bytes)
-{
- qhash_t *h;
- uword l;
-
- l = clib_max (max_log2 (length), 2 + QHASH_LOG2_KEYS_PER_BUCKET);
-
- /* Round up if less than 1/2 full. */
- l += ((f64) length / (f64) (1 << l)) < .5;
-
- v = _vec_resize (0, 1 << l, elt_bytes << l, sizeof (h[0]),
- /* align */ sizeof (uword));
-
- h = qhash_header (v);
- h->n_elts = 0;
- h->log2_hash_size = l;
- h->hash_keys =
- clib_mem_alloc_aligned_no_fail (sizeof (h->hash_keys[0]) << l,
- CLIB_CACHE_LINE_BYTES);
- vec_resize (h->hash_key_valid_bitmap,
- 1 << (l - QHASH_LOG2_KEYS_PER_BUCKET));
- clib_memset (v, ~0, elt_bytes << l);
-
- return v;
-}
-
-static u8 min_log2_table[256];
-
-static inline uword
-qhash_min_log2 (uword x)
-{
- ASSERT (is_pow2 (x));
- ASSERT (x < 256);
- return min_log2_table[x];
-}
-
-static void
-qhash_min_log2_init ()
-{
- int i;
- for (i = 0; i < 256; i++)
- min_log2_table[i] = min_log2 (i);
-}
-
-always_inline uword
-qhash_get_valid_elt_mask (qhash_t * h, uword i)
-{
- return h->hash_key_valid_bitmap[i / QHASH_KEYS_PER_BUCKET];
-}
-
-always_inline void
-qhash_set_valid_elt_mask (qhash_t * h, uword i, uword mask)
-{
- h->hash_key_valid_bitmap[i / QHASH_KEYS_PER_BUCKET] = mask;
-}
-
-always_inline uword
-qhash_search_bucket (uword * hash_keys, uword search_key, uword m)
-{
- uword t;
-#define _(i) ((hash_keys[i] == search_key) << i)
- t = (_(0) | _(1) | _(2) | _(3));
- if (QHASH_KEYS_PER_BUCKET > 4)
- t |= (_(4) | _(5) | _(6) | _(7));
- if (QHASH_KEYS_PER_BUCKET > 8)
- t |= (_(8) | _(9) | _(10) | _(11) | _(12) | _(13) | _(14) | _(15));
-#undef _
- return m & t;
-}
-
-/* Lookup multiple keys in the same hash table. */
-void
-qhash_get_multiple (void *v,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices)
-{
- qhash_t *h = qhash_header (v);
- uword *k, *hash_keys;
- uword n_left, bucket_mask;
- u32 *r;
-
- if (!v)
- {
- clib_memset (result_indices, ~0,
- sizeof (result_indices[0]) * n_search_keys);
- return;
- }
-
- bucket_mask = pow2_mask (h->log2_hash_size) & ~(QHASH_KEYS_PER_BUCKET - 1);
-
- k = search_keys;
- n_left = n_search_keys;
- hash_keys = h->hash_keys;
- r = result_indices;
-
- while (n_left >= 2)
- {
- u32 a0, b0, c0, bi0, valid0, match0;
- u32 a1, b1, c1, bi1, valid1, match1;
- uword k0, k1, *h0, *h1;
-
- k0 = k[0];
- k1 = k[1];
- n_left -= 2;
- k += 2;
-
- a0 = a1 = h->hash_seeds[0];
- b0 = b1 = h->hash_seeds[1];
- c0 = c1 = h->hash_seeds[2];
- a0 ^= k0;
- a1 ^= k1;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
- b1 ^= k1 >> 32;
-#endif
-
- hash_mix32_step_1 (a0, b0, c0);
- hash_mix32_step_1 (a1, b1, c1);
- hash_mix32_step_2 (a0, b0, c0);
- hash_mix32_step_2 (a1, b1, c1);
- hash_mix32_step_3 (a0, b0, c0);
- hash_mix32_step_3 (a1, b1, c1);
-
- bi0 = c0 & bucket_mask;
- bi1 = c1 & bucket_mask;
-
- h0 = hash_keys + bi0;
- h1 = hash_keys + bi1;
-
- /* Search two buckets. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- valid1 = qhash_get_valid_elt_mask (h, bi1);
-
- match0 = qhash_search_bucket (h0, k0, valid0);
- match1 = qhash_search_bucket (h1, k1, valid1);
-
- bi0 += qhash_min_log2 (match0);
- bi1 += qhash_min_log2 (match1);
-
- r[0] = match0 ? bi0 : ~0;
- r[1] = match1 ? bi1 : ~0;
- r += 2;
-
- /* Full buckets trigger search of overflow hash. */
- if (PREDICT_FALSE (!match0 && valid0 == QHASH_ALL_VALID))
- {
- uword *p = hash_get (h->overflow_hash, k0);
- r[-2] = p ? p[0] : ~0;
- }
-
- /* Full buckets trigger search of overflow hash. */
- if (PREDICT_FALSE (!match1 && valid1 == QHASH_ALL_VALID))
- {
- uword *p = hash_get (h->overflow_hash, k1);
- r[-1] = p ? p[0] : ~0;
- }
- }
-
- while (n_left >= 1)
- {
- u32 a0, b0, c0, bi0, valid0, match0;
- uword k0, *h0;
-
- k0 = k[0];
- n_left -= 1;
- k += 1;
-
- a0 = h->hash_seeds[0];
- b0 = h->hash_seeds[1];
- c0 = h->hash_seeds[2];
- a0 ^= k0;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
-#endif
-
- hash_mix32 (a0, b0, c0);
-
- bi0 = c0 & bucket_mask;
-
- h0 = hash_keys + bi0;
-
- /* Search one bucket. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- match0 = qhash_search_bucket (h0, k0, valid0);
-
- bi0 += qhash_min_log2 (match0);
-
- r[0] = match0 ? bi0 : ~0;
- r += 1;
-
- /* Full buckets trigger search of overflow hash. */
- if (PREDICT_FALSE (!match0 && valid0 == QHASH_ALL_VALID))
- {
- uword *p = hash_get (h->overflow_hash, k0);
- r[-1] = p ? p[0] : ~0;
- }
- }
-}
-
-/* Lookup multiple keys in the same hash table.
- Returns index of first matching key. */
-u32
-qhash_get_first_match (void *v,
- uword * search_keys,
- uword n_search_keys, uword * matching_key)
-{
- qhash_t *h = qhash_header (v);
- uword *k, *hash_keys;
- uword n_left, match_mask, bucket_mask;
-
- if (!v)
- return ~0;
-
- match_mask = 0;
- bucket_mask = pow2_mask (h->log2_hash_size) & ~(QHASH_KEYS_PER_BUCKET - 1);
-
- k = search_keys;
- n_left = n_search_keys;
- hash_keys = h->hash_keys;
- while (n_left >= 2)
- {
- u32 a0, b0, c0, bi0, valid0;
- u32 a1, b1, c1, bi1, valid1;
- uword k0, k1, *h0, *h1;
-
- k0 = k[0];
- k1 = k[1];
- n_left -= 2;
- k += 2;
-
- a0 = a1 = h->hash_seeds[0];
- b0 = b1 = h->hash_seeds[1];
- c0 = c1 = h->hash_seeds[2];
- a0 ^= k0;
- a1 ^= k1;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
- b1 ^= k1 >> 32;
-#endif
-
- hash_mix32_step_1 (a0, b0, c0);
- hash_mix32_step_1 (a1, b1, c1);
- hash_mix32_step_2 (a0, b0, c0);
- hash_mix32_step_2 (a1, b1, c1);
- hash_mix32_step_3 (a0, b0, c0);
- hash_mix32_step_3 (a1, b1, c1);
-
- bi0 = c0 & bucket_mask;
- bi1 = c1 & bucket_mask;
-
- h0 = hash_keys + bi0;
- h1 = hash_keys + bi1;
-
- /* Search two buckets. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- valid1 = qhash_get_valid_elt_mask (h, bi1);
- match_mask = qhash_search_bucket (h0, k0, valid0);
- match_mask |= (qhash_search_bucket (h1, k1, valid1)
- << QHASH_KEYS_PER_BUCKET);
- if (match_mask)
- {
- uword bi, is_match1;
-
- bi = qhash_min_log2 (match_mask);
- is_match1 = bi >= QHASH_KEYS_PER_BUCKET;
-
- bi += ((is_match1 ? bi1 : bi0)
- - (is_match1 << QHASH_LOG2_KEYS_PER_BUCKET));
- *matching_key = (k - 2 - search_keys) + is_match1;
- return bi;
- }
-
- /* Full buckets trigger search of overflow hash. */
- if (PREDICT_FALSE (valid0 == QHASH_ALL_VALID
- || valid1 == QHASH_ALL_VALID))
- {
- uword *p = 0;
- uword ki = k - 2 - search_keys;
-
- if (valid0 == QHASH_ALL_VALID)
- p = hash_get (h->overflow_hash, k0);
-
- if (!p && valid1 == QHASH_ALL_VALID)
- {
- p = hash_get (h->overflow_hash, k1);
- ki++;
- }
-
- if (p)
- {
- *matching_key = ki;
- return p[0];
- }
- }
- }
-
- while (n_left >= 1)
- {
- u32 a0, b0, c0, bi0, valid0;
- uword k0, *h0;
-
- k0 = k[0];
- n_left -= 1;
- k += 1;
-
- a0 = h->hash_seeds[0];
- b0 = h->hash_seeds[1];
- c0 = h->hash_seeds[2];
- a0 ^= k0;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
-#endif
-
- hash_mix32 (a0, b0, c0);
-
- bi0 = c0 & bucket_mask;
-
- h0 = hash_keys + bi0;
-
- /* Search one bucket. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- match_mask = qhash_search_bucket (h0, k0, valid0);
- if (match_mask)
- {
- uword bi;
- bi = bi0 + qhash_min_log2 (match_mask);
- *matching_key = (k - 1 - search_keys);
- return bi;
- }
-
- /* Full buckets trigger search of overflow hash. */
- if (PREDICT_FALSE (valid0 == QHASH_ALL_VALID))
- {
- uword *p = hash_get (h->overflow_hash, k0);
- if (p)
- {
- *matching_key = (k - 1 - search_keys);
- return p[0];
- }
- }
- }
-
- return ~0;
-}
-
-static void *
-qhash_set_overflow (void *v, uword elt_bytes,
- uword key, uword bi, uword * n_elts, u32 * result)
-{
- qhash_t *h = qhash_header (v);
- uword *p = hash_get (h->overflow_hash, key);
- uword i;
-
- bi /= QHASH_KEYS_PER_BUCKET;
-
- if (p)
- i = p[0];
- else
- {
- uword l = vec_len (h->overflow_free_indices);
- if (l > 0)
- {
- i = h->overflow_free_indices[l - 1];
- _vec_len (h->overflow_free_indices) = l - 1;
- }
- else
- i = (1 << h->log2_hash_size) + hash_elts (h->overflow_hash);
- hash_set (h->overflow_hash, key, i);
- vec_validate (h->overflow_counts, bi);
- h->overflow_counts[bi] += 1;
- *n_elts += 1;
-
- l = vec_len (v);
- if (i >= l)
- {
- uword dl = round_pow2 (1 + i - l, 8);
- v = _vec_resize (v, dl, (l + dl) * elt_bytes, sizeof (h[0]),
- /* align */ sizeof (uword));
- clib_memset (v + l * elt_bytes, ~0, dl * elt_bytes);
- }
- }
-
- *result = i;
-
- return v;
-}
-
-static uword
-qhash_unset_overflow (void *v, uword key, uword bi, uword * n_elts)
-{
- qhash_t *h = qhash_header (v);
- uword *p = hash_get (h->overflow_hash, key);
- uword result;
-
- bi /= QHASH_KEYS_PER_BUCKET;
-
- if (p)
- {
- result = p[0];
- hash_unset (h->overflow_hash, key);
- ASSERT (bi < vec_len (h->overflow_counts));
- ASSERT (h->overflow_counts[bi] > 0);
- ASSERT (*n_elts > 0);
- vec_add1 (h->overflow_free_indices, result);
- h->overflow_counts[bi] -= 1;
- *n_elts -= 1;
- }
- else
- result = ~0;
-
- return result;
-}
-
-always_inline uword
-qhash_find_free (uword i, uword valid_mask)
-{
- return first_set (~valid_mask & pow2_mask (QHASH_KEYS_PER_BUCKET));
-}
-
-void *
-_qhash_set_multiple (void *v,
- uword elt_bytes,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices)
-{
- qhash_t *h = qhash_header (v);
- uword *k, *hash_keys;
- uword n_left, n_elts, bucket_mask;
- u32 *r;
-
- if (vec_len (v) < n_search_keys)
- v = _qhash_resize (v, n_search_keys, elt_bytes);
-
- if (qhash_min_log2 (2) != 1)
- {
- qhash_min_log2_init ();
- ASSERT (qhash_min_log2 (2) == 1);
- }
-
- ASSERT (v != 0);
-
- bucket_mask = pow2_mask (h->log2_hash_size) & ~(QHASH_KEYS_PER_BUCKET - 1);
-
- hash_keys = h->hash_keys;
- k = search_keys;
- r = result_indices;
- n_left = n_search_keys;
- n_elts = h->n_elts;
-
- while (n_left >= 2)
- {
- u32 a0, b0, c0, bi0, match0, valid0, free0;
- u32 a1, b1, c1, bi1, match1, valid1, free1;
- uword k0, *h0;
- uword k1, *h1;
-
- k0 = k[0];
- k1 = k[1];
-
- /* Keys must be unique. */
- ASSERT (k0 != k1);
-
- n_left -= 2;
- k += 2;
-
- a0 = a1 = h->hash_seeds[0];
- b0 = b1 = h->hash_seeds[1];
- c0 = c1 = h->hash_seeds[2];
- a0 ^= k0;
- a1 ^= k1;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
- b1 ^= k1 >> 32;
-#endif
-
- hash_mix32_step_1 (a0, b0, c0);
- hash_mix32_step_1 (a1, b1, c1);
- hash_mix32_step_2 (a0, b0, c0);
- hash_mix32_step_2 (a1, b1, c1);
- hash_mix32_step_3 (a0, b0, c0);
- hash_mix32_step_3 (a1, b1, c1);
-
- bi0 = c0 & bucket_mask;
- bi1 = c1 & bucket_mask;
-
- h0 = hash_keys + bi0;
- h1 = hash_keys + bi1;
-
- /* Search two buckets. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- valid1 = qhash_get_valid_elt_mask (h, bi1);
-
- match0 = qhash_search_bucket (h0, k0, valid0);
- match1 = qhash_search_bucket (h1, k1, valid1);
-
- /* Find first free element starting at hash offset into bucket. */
- free0 = qhash_find_free (c0 & (QHASH_KEYS_PER_BUCKET - 1), valid0);
-
- valid1 = valid1 | (bi0 == bi1 ? free0 : 0);
- free1 = qhash_find_free (c1 & (QHASH_KEYS_PER_BUCKET - 1), valid1);
-
- n_elts += (match0 == 0) + (match1 == 0);
-
- match0 = match0 ? match0 : free0;
- match1 = match1 ? match1 : free1;
-
- valid0 |= match0;
- valid1 |= match1;
-
- h0 += qhash_min_log2 (match0);
- h1 += qhash_min_log2 (match1);
-
- if (PREDICT_FALSE (!match0 || !match1))
- goto slow_path2;
-
- h0[0] = k0;
- h1[0] = k1;
- r[0] = h0 - hash_keys;
- r[1] = h1 - hash_keys;
- r += 2;
- qhash_set_valid_elt_mask (h, bi0, valid0);
- qhash_set_valid_elt_mask (h, bi1, valid1);
- continue;
-
- slow_path2:
- if (!match0)
- {
- n_elts -= 1;
- v = qhash_set_overflow (v, elt_bytes, k0, bi0, &n_elts, &r[0]);
- }
- else
- {
- h0[0] = k0;
- r[0] = h0 - hash_keys;
- qhash_set_valid_elt_mask (h, bi0, valid0);
- }
- if (!match1)
- {
- n_elts -= 1;
- v = qhash_set_overflow (v, elt_bytes, k1, bi1, &n_elts, &r[1]);
- }
- else
- {
- h1[0] = k1;
- r[1] = h1 - hash_keys;
- qhash_set_valid_elt_mask (h, bi1, valid1);
- }
- r += 2;
- }
-
- while (n_left >= 1)
- {
- u32 a0, b0, c0, bi0, match0, valid0, free0;
- uword k0, *h0;
-
- k0 = k[0];
- n_left -= 1;
- k += 1;
-
- a0 = h->hash_seeds[0];
- b0 = h->hash_seeds[1];
- c0 = h->hash_seeds[2];
- a0 ^= k0;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
-#endif
-
- hash_mix32 (a0, b0, c0);
-
- bi0 = c0 & bucket_mask;
-
- h0 = hash_keys + bi0;
-
- valid0 = qhash_get_valid_elt_mask (h, bi0);
-
- /* Find first free element starting at hash offset into bucket. */
- free0 = qhash_find_free (c0 & (QHASH_KEYS_PER_BUCKET - 1), valid0);
-
- match0 = qhash_search_bucket (h0, k0, valid0);
-
- n_elts += (match0 == 0);
-
- match0 = match0 ? match0 : free0;
-
- valid0 |= match0;
-
- h0 += qhash_min_log2 (match0);
-
- if (PREDICT_FALSE (!match0))
- goto slow_path1;
-
- h0[0] = k0;
- r[0] = h0 - hash_keys;
- r += 1;
- qhash_set_valid_elt_mask (h, bi0, valid0);
- continue;
-
- slow_path1:
- n_elts -= 1;
- v = qhash_set_overflow (v, elt_bytes, k0, bi0, &n_elts, &r[0]);
- r += 1;
- }
-
- h = qhash_header (v);
- h->n_elts = n_elts;
-
- return v;
-}
-
-static uword
-unset_slow_path (void *v, uword elt_bytes,
- uword k0, uword bi0, uword valid0, uword match0,
- uword * n_elts)
-{
- qhash_t *h = qhash_header (v);
- uword i, j = 0, k, l, t = ~0;
- hash_pair_t *p, *found;
-
- if (!match0)
- {
- if (valid0 == QHASH_ALL_VALID)
- t = qhash_unset_overflow (v, k0, bi0, n_elts);
- return t;
- }
-
- i = bi0 / QHASH_KEYS_PER_BUCKET;
- t = bi0 + qhash_min_log2 (match0);
-
- if (valid0 == QHASH_ALL_VALID
- && i < vec_len (h->overflow_counts) && h->overflow_counts[i] > 0)
- {
- found = 0;
- /* *INDENT-OFF* */
- hash_foreach_pair (p, h->overflow_hash, ({
- j = qhash_hash_mix (h, p->key) / QHASH_KEYS_PER_BUCKET;
- if (j == i)
- {
- found = p;
- break;
- }
- }));
- /* *INDENT-ON* */
- ASSERT (found != 0);
- ASSERT (j == i);
-
- l = found->value[0];
- k = found->key;
- hash_unset3 (h->overflow_hash, k, &j);
- vec_add1 (h->overflow_free_indices, j);
- h->overflow_counts[i] -= 1;
-
- qhash_set_valid_elt_mask (h, bi0, valid0);
-
- h->hash_keys[t] = k;
- clib_memswap (v + t * elt_bytes, v + l * elt_bytes, elt_bytes);
- t = l;
- }
- else
- qhash_set_valid_elt_mask (h, bi0, valid0 ^ match0);
-
- return t;
-}
-
-void
-_qhash_unset_multiple (void *v,
- uword elt_bytes,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices)
-{
- qhash_t *h = qhash_header (v);
- uword *k, *hash_keys;
- uword n_left, n_elts, bucket_mask;
- u32 *r;
-
- if (!v)
- {
- uword i;
- for (i = 0; i < n_search_keys; i++)
- result_indices[i] = ~0;
- }
-
- bucket_mask = pow2_mask (h->log2_hash_size) & ~(QHASH_KEYS_PER_BUCKET - 1);
-
- hash_keys = h->hash_keys;
- k = search_keys;
- r = result_indices;
- n_left = n_search_keys;
- n_elts = h->n_elts;
-
- while (n_left >= 2)
- {
- u32 a0, b0, c0, bi0, match0, valid0;
- u32 a1, b1, c1, bi1, match1, valid1;
- uword k0, *h0;
- uword k1, *h1;
-
- k0 = k[0];
- k1 = k[1];
-
- /* Keys must be unique. */
- ASSERT (k0 != k1);
-
- n_left -= 2;
- k += 2;
-
- a0 = a1 = h->hash_seeds[0];
- b0 = b1 = h->hash_seeds[1];
- c0 = c1 = h->hash_seeds[2];
- a0 ^= k0;
- a1 ^= k1;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
- b1 ^= k1 >> 32;
-#endif
-
- hash_mix32_step_1 (a0, b0, c0);
- hash_mix32_step_1 (a1, b1, c1);
- hash_mix32_step_2 (a0, b0, c0);
- hash_mix32_step_2 (a1, b1, c1);
- hash_mix32_step_3 (a0, b0, c0);
- hash_mix32_step_3 (a1, b1, c1);
-
- bi0 = c0 & bucket_mask;
- bi1 = c1 & bucket_mask;
-
- h0 = hash_keys + bi0;
- h1 = hash_keys + bi1;
-
- /* Search two buckets. */
- valid0 = qhash_get_valid_elt_mask (h, bi0);
- valid1 = qhash_get_valid_elt_mask (h, bi1);
-
- match0 = qhash_search_bucket (h0, k0, valid0);
- match1 = qhash_search_bucket (h1, k1, valid1);
-
- n_elts -= (match0 != 0) + (match1 != 0);
-
- if (PREDICT_FALSE (valid0 == QHASH_ALL_VALID
- || valid1 == QHASH_ALL_VALID))
- goto slow_path2;
-
- valid0 ^= match0;
- qhash_set_valid_elt_mask (h, bi0, valid0);
-
- valid1 = bi0 == bi1 ? valid0 : valid1;
- valid1 ^= match1;
-
- qhash_set_valid_elt_mask (h, bi1, valid1);
-
- r[0] = match0 ? bi0 + qhash_min_log2 (match0) : ~0;
- r[1] = match1 ? bi1 + qhash_min_log2 (match1) : ~0;
- r += 2;
- continue;
-
- slow_path2:
- r[0] = unset_slow_path (v, elt_bytes, k0, bi0, valid0, match0, &n_elts);
- if (bi0 == bi1)
- {
- /* Search again in same bucket to test new overflow element. */
- valid1 = qhash_get_valid_elt_mask (h, bi0);
- if (!match1)
- {
- match1 = qhash_search_bucket (h1, k1, valid1);
- n_elts -= (match1 != 0);
- }
- }
- r[1] = unset_slow_path (v, elt_bytes, k1, bi1, valid1, match1, &n_elts);
- r += 2;
- }
-
- while (n_left >= 1)
- {
- u32 a0, b0, c0, bi0, match0, valid0;
- uword k0, *h0;
-
- k0 = k[0];
- n_left -= 1;
- k += 1;
-
- a0 = h->hash_seeds[0];
- b0 = h->hash_seeds[1];
- c0 = h->hash_seeds[2];
- a0 ^= k0;
-#if uword_bits == 64
- b0 ^= k0 >> 32;
-#endif
-
- hash_mix32 (a0, b0, c0);
-
- bi0 = c0 & bucket_mask;
-
- h0 = hash_keys + bi0;
-
- valid0 = qhash_get_valid_elt_mask (h, bi0);
-
- match0 = qhash_search_bucket (h0, k0, valid0);
- n_elts -= (match0 != 0);
- qhash_set_valid_elt_mask (h, bi0, valid0 ^ match0);
-
- r[0] = match0 ? bi0 + qhash_min_log2 (match0) : ~0;
- r += 1;
-
- if (PREDICT_FALSE (valid0 == QHASH_ALL_VALID))
- r[-1] = unset_slow_path (v, elt_bytes, k0, bi0, valid0, match0,
- &n_elts);
- }
-
- h->n_elts = n_elts;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/qhash.h b/src/vppinfra/qhash.h
deleted file mode 100644
index 9dbbd971ade..00000000000
--- a/src/vppinfra/qhash.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2006 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_qhash_h
-#define included_qhash_h
-
-#include <vppinfra/cache.h>
-#include <vppinfra/hash.h>
-
-/* Word hash tables. */
-typedef struct
-{
- /* Number of elements in hash. */
- u32 n_elts;
-
- u32 log2_hash_size;
-
- /* Jenkins hash seeds. */
- u32 hash_seeds[3];
-
- /* Fall back CLIB hash for overflow in fixed sized buckets. */
- uword *overflow_hash;
-
- u32 *overflow_counts, *overflow_free_indices;
-
- u8 *hash_key_valid_bitmap;
-
- uword *hash_keys;
-} qhash_t;
-
-always_inline qhash_t *
-qhash_header (void *v)
-{
- return vec_header (v, sizeof (qhash_t));
-}
-
-always_inline uword
-qhash_elts (void *v)
-{
- return v ? qhash_header (v)->n_elts : 0;
-}
-
-always_inline uword
-qhash_n_overflow (void *v)
-{
- return v ? hash_elts (qhash_header (v)->overflow_hash) : 0;
-}
-
-#define QHASH_LOG2_KEYS_PER_BUCKET 2
-#define QHASH_KEYS_PER_BUCKET (1 << QHASH_LOG2_KEYS_PER_BUCKET)
-
-always_inline uword
-qhash_hash_mix (qhash_t * h, uword key)
-{
- u32 a, b, c;
-
- a = h->hash_seeds[0];
- b = h->hash_seeds[1];
- c = h->hash_seeds[2];
-
- a ^= key;
-#if uword_bits == 64
- b ^= key >> 32;
-#endif
-
- hash_mix32 (a, b, c);
-
- return c & pow2_mask (h->log2_hash_size);
-}
-
-#define qhash_resize(v,n) (v) = _qhash_resize ((v), (n), sizeof ((v)[0]))
-
-#define qhash_foreach(var,v,body)
-
-#define qhash_set_multiple(v,keys,n,results) \
- (v) = _qhash_set_multiple ((v), sizeof ((v)[0]), (keys), (n), (results))
-
-#define qhash_unset_multiple(v,keys,n,results) \
- _qhash_unset_multiple ((v), sizeof ((v)[0]), (keys), (n), (results))
-
-#define qhash_get(v,key) \
-({ \
- uword _qhash_get_k = (key); \
- qhash_get_first_match ((v), &_qhash_get_k, 1, &_qhash_get_k); \
-})
-
-#define qhash_set(v,k) \
-({ \
- uword _qhash_set_k = (k); \
- qhash_set_multiple ((v), &_qhash_set_k, 1, &_qhash_set_k); \
- _qhash_set_k; \
-})
-
-#define qhash_unset(v,k) \
-({ \
- uword _qhash_unset_k = (k); \
- qhash_unset_multiple ((v), &_qhash_unset_k, 1, &_qhash_unset_k); \
- _qhash_unset_k; \
-})
-
-void *_qhash_resize (void *v, uword length, uword elt_bytes);
-
-/* Lookup multiple keys in the same hash table. */
-void
-qhash_get_multiple (void *v,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices);
-
-/* Lookup multiple keys in the same hash table.
- Returns index of first matching key. */
-u32
-qhash_get_first_match (void *v,
- uword * search_keys,
- uword n_search_keys, uword * matching_key);
-
-/* Set/unset helper functions. */
-void *_qhash_set_multiple (void *v,
- uword elt_bytes,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices);
-void
-_qhash_unset_multiple (void *v,
- uword elt_bytes,
- uword * search_keys,
- uword n_search_keys, u32 * result_indices);
-
-#endif /* included_qhash_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/slist.c b/src/vppinfra/slist.c
deleted file mode 100644
index 5598871c884..00000000000
--- a/src/vppinfra/slist.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- Copyright (c) 2012 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.
-*/
-
-#include <vppinfra/slist.h>
-
-/*
- * skip-list implementation
- *
- * Good news / bad news. As balanced binary tree schemes go,
- * this one seems pretty fast and is reasonably simple. There's a very
- * limited amount that can be done to mitigate sdram read latency.
- *
- * Each active clib_slist_elt_t is on from 1 to N lists. Each active element
- * is always on the "level-0" list. Since most elements are *only* on
- * level 0, we keep the level 0 (and level 1) in the element. For those
- * elements on more than two lists, we switch to a vector. Hence, the
- * "n" union in slib_slist_elt_t.
- *
- * The low-order bit of elt->n.next0[0] is 1 for inlined next indices,
- * 0 for vector indices (since the allocator always aligns to at least
- * a 4-byte boundary). We can only represent 2e9 items, but since the
- * practical performance limit is O(1e7), it doesn't matter.
- *
- * We create a "head" element which (by construction) is always
- * lexically lighter than any other element. This makes a large number
- * of irritating special cases go away.
- *
- * User code is in charge of comparing a supplied key with
- * the key component of a user pool element. The user tells this code
- * to add or delete (opaque key, 32-bit integer) pairs to the skip-list.
- *
- * The algorithm adds new elements to one or more lists.
- * For levels greater than zero, the probability of a new element landing on
- * a list is branching_factor**N. Branching_factor = 0.2 seems to work
- * OK, yielding about 50 compares per search at O(1e7) items.
- */
-
-clib_error_t *
-clib_slist_init (clib_slist_t * sp, f64 branching_factor,
- clib_slist_key_compare_function_t compare,
- format_function_t format_user_element)
-{
- clib_slist_elt_t *head;
- clib_memset (sp, 0, sizeof (sp[0]));
- sp->branching_factor = branching_factor;
- sp->format_user_element = format_user_element;
- sp->compare = compare;
- sp->seed = 0xdeaddabe;
- pool_get (sp->elts, head);
- vec_add1 (head->n.nexts, (u32) ~ 0);
- head->user_pool_index = (u32) ~ 0;
- vec_validate (sp->path, 1);
- vec_validate (sp->occupancy, 0);
-
- return 0;
-}
-
-/*
- * slist_search_internal
- */
-static inline clib_slist_search_result_t
-slist_search_internal (clib_slist_t * sp, void *key, int need_full_path)
-{
- int level, comp_result;
- clib_slist_elt_t *search_elt, *head_elt;
-
- sp->ncompares = 0;
- /*
- * index 0 is the magic listhead element which is
- * lexically lighter than / to the left of every element
- */
- search_elt = head_elt = pool_elt_at_index (sp->elts, 0);
-
- /*
- * Initial negotiating position, only the head_elt is
- * lighter than the supplied key
- */
- clib_memset (sp->path, 0, vec_len (head_elt->n.nexts) * sizeof (u32));
-
- /* Walk the fastest lane first */
- level = vec_len (head_elt->n.nexts) - 1;
- _vec_len (sp->path) = level + 1;
-
- while (1)
- {
- u32 next_index_this_level;
- clib_slist_elt_t *prefetch_elt;
-
- /*
- * Prefetching the next element at this level makes a measurable
- * difference, but doesn't fix the dependent read stall problem
- */
- prefetch_elt = sp->elts +
- clib_slist_get_next_at_level (search_elt, level);
-
- CLIB_PREFETCH (prefetch_elt, CLIB_CACHE_LINE_BYTES, READ);
-
- /* Compare the key with the current element */
- comp_result = (search_elt == head_elt) ? 1 :
- sp->compare (key, search_elt->user_pool_index);
-
- sp->ncompares++;
- /* key "lighter" than this element */
- if (comp_result < 0)
- {
- /*
- * Back up to previous item on this list
- * and search the next finer-grained list
- * starting there.
- */
- search_elt = pool_elt_at_index (sp->elts, sp->path[level]);
- next_list:
- if (level > 0)
- {
- level--;
- continue;
- }
- else
- {
- return CLIB_SLIST_NO_MATCH;
- }
- }
- /* Match */
- if (comp_result == 0)
- {
- /*
- * If we're trying to delete an element, we need to
- * track down all of the elements which point at it.
- * Otherwise, don't bother with it
- */
- if (need_full_path && level > 0)
- {
- search_elt = pool_elt_at_index (sp->elts, sp->path[level]);
- level--;
- continue;
- }
- level = vec_len (head_elt->n.nexts);
- sp->path[level] = search_elt - sp->elts;
- _vec_len (sp->path) = level + 1;
- return CLIB_SLIST_MATCH;
- }
- /*
- * comp_result positive, key is to the right of
- * this element
- */
- sp->path[level] = search_elt - sp->elts;
-
- /* Out of list at this level? */
- next_index_this_level =
- clib_slist_get_next_at_level (search_elt, level);
- if (next_index_this_level == (u32) ~ 0)
- goto next_list;
-
- /* No, try the next element */
- search_elt = pool_elt_at_index (sp->elts, next_index_this_level);
- }
- return 0; /* notreached */
-}
-
-u32
-clib_slist_search (clib_slist_t * sp, void *key, u32 * ncompares)
-{
- clib_slist_search_result_t rv;
-
- rv = slist_search_internal (sp, key, 0 /* dont need full path */ );
- if (rv == CLIB_SLIST_MATCH)
- {
- clib_slist_elt_t *elt;
- elt = pool_elt_at_index (sp->elts, sp->path[vec_len (sp->path) - 1]);
- if (ncompares)
- *ncompares = sp->ncompares;
- return elt->user_pool_index;
- }
- return (u32) ~ 0;
-}
-
-void
-clib_slist_add (clib_slist_t * sp, void *key, u32 user_pool_index)
-{
- clib_slist_elt_t *new_elt;
- clib_slist_search_result_t search_result;
- int level;
-
- search_result = slist_search_internal (sp, key,
- 0 /* don't need full path */ );
-
- /* Special case: key exists, just replace user_pool_index */
- if (PREDICT_FALSE (search_result == CLIB_SLIST_MATCH))
- {
- clib_slist_elt_t *elt;
- elt = pool_elt_at_index (sp->elts, sp->path[0]);
- elt->user_pool_index = user_pool_index;
- return;
- }
-
- pool_get (sp->elts, new_elt);
- new_elt->n.nexts = 0;
- new_elt->user_pool_index = user_pool_index;
-
- /* sp->path lists elements to the left of key, by level */
- for (level = 0; level < vec_len (sp->path); level++)
- {
- clib_slist_elt_t *prev_elt_this_level;
- u32 prev_elt_next_index_this_level;
-
- /* Add to list at the current level */
- prev_elt_this_level = pool_elt_at_index (sp->elts, sp->path[level]);
- prev_elt_next_index_this_level = clib_slist_get_next_at_level
- (prev_elt_this_level, level);
-
- clib_slist_set_next_at_level (new_elt, prev_elt_next_index_this_level,
- level);
-
- clib_slist_set_next_at_level (prev_elt_this_level, new_elt - sp->elts,
- level);
- sp->occupancy[level]++;
-
- /* Randomly add to the next-higher level */
- if (random_f64 (&sp->seed) > sp->branching_factor)
- break;
- }
- {
- /* Time to add a new ply? */
- clib_slist_elt_t *head_elt = pool_elt_at_index (sp->elts, 0);
- int top_level = vec_len (head_elt->n.nexts) - 1;
- if (((f64) sp->occupancy[top_level]) * sp->branching_factor > 1.0)
- {
- vec_add1 (sp->occupancy, 0);
- vec_add1 (head_elt->n.nexts, (u32) ~ 0);
- /* full match case returns n+1 items */
- vec_validate (sp->path, vec_len (head_elt->n.nexts));
- }
- }
-}
-
-clib_slist_search_result_t
-clib_slist_del (clib_slist_t * sp, void *key)
-{
- clib_slist_search_result_t search_result;
- clib_slist_elt_t *del_elt;
- int level;
-
- search_result = slist_search_internal (sp, key, 1 /* need full path */ );
-
- if (PREDICT_FALSE (search_result == CLIB_SLIST_NO_MATCH))
- return search_result;
-
- del_elt = pool_elt_at_index (sp->elts, sp->path[vec_len (sp->path) - 1]);
- ASSERT (vec_len (sp->path) > 1);
-
- for (level = 0; level < vec_len (sp->path) - 1; level++)
- {
- clib_slist_elt_t *path_elt;
- u32 path_elt_next_index;
-
- path_elt = pool_elt_at_index (sp->elts, sp->path[level]);
- path_elt_next_index = clib_slist_get_next_at_level (path_elt, level);
-
- /* Splice the item out of the list if it's adjacent to the victim */
- if (path_elt_next_index == del_elt - sp->elts)
- {
- sp->occupancy[level]--;
- path_elt_next_index = clib_slist_get_next_at_level (del_elt, level);
- clib_slist_set_next_at_level (path_elt, path_elt_next_index, level);
- }
- }
-
- /* If this element is on more than two lists it has a vector of nexts */
- if (!(del_elt->n.next0[0] & 1))
- vec_free (del_elt->n.nexts);
- pool_put (sp->elts, del_elt);
- return CLIB_SLIST_MATCH;
-}
-
-u8 *
-format_slist (u8 * s, va_list * args)
-{
- clib_slist_t *sl = va_arg (*args, clib_slist_t *);
- int verbose = va_arg (*args, int);
- int i;
- clib_slist_elt_t *head_elt, *elt;
-
- s = format (s, "slist 0x%x, %u items, branching_factor %.2f\n", sl,
- sl->occupancy ? sl->occupancy[0] : 0, sl->branching_factor);
-
- if (pool_elts (sl->elts) == 0)
- return s;
-
- head_elt = pool_elt_at_index (sl->elts, 0);
-
- for (i = 0; i < vec_len (head_elt->n.nexts); i++)
- {
- s = format (s, "level %d: %d elts\n", i,
- sl->occupancy ? sl->occupancy[i] : 0);
-
- if (verbose && head_elt->n.nexts[i] != (u32) ~ 0)
- {
- elt = pool_elt_at_index (sl->elts, head_elt->n.nexts[i]);
- while (elt)
- {
- u32 next_index;
- s = format (s, "%U(%d) ", sl->format_user_element,
- elt->user_pool_index, elt - sl->elts);
- next_index = clib_slist_get_next_at_level (elt, i);
- ASSERT (next_index != 0x7fffffff);
- if (next_index == (u32) ~ 0)
- break;
- else
- elt = pool_elt_at_index (sl->elts, next_index);
- }
- }
- s = format (s, "\n");
- }
- return s;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/slist.h b/src/vppinfra/slist.h
deleted file mode 100644
index a7c77e27c96..00000000000
--- a/src/vppinfra/slist.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- Copyright (c) 2012 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.
-*/
-
-#ifndef included_slist_h
-#define included_slist_h
-
-#include <stdarg.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/error.h>
-#include <vppinfra/format.h>
-#include <vppinfra/cache.h>
-
-typedef word (clib_slist_key_compare_function_t)
- (void *key, u32 elt_pool_index);
-
-typedef enum
-{
- CLIB_SLIST_MATCH = 0,
- CLIB_SLIST_NO_MATCH
-} clib_slist_search_result_t;
-
-typedef struct
-{
- /* Vector of next elements. Every valid instance has at least one */
- union
- {
- u32 next0[2];
- u32 *nexts;
- } n;
-
- /* Index of item in user's pool */
- u32 user_pool_index;
- /* $$$ pad to even divisor of cache line */
-} clib_slist_elt_t;
-
-static inline u32
-clib_slist_get_next_at_level (clib_slist_elt_t * elt, int level)
-{
- if (elt->n.next0[0] & 1)
- {
- ASSERT (level < 2);
- if (level == 1)
- return elt->n.next0[1];
- /* preserve ~0 (end of list) */
- return (elt->n.next0[0] == (u32) ~ 0) ? elt->n.next0[0] :
- (elt->n.next0[0] >> 1);
- }
- else
- {
- ASSERT (level < vec_len (elt->n.nexts));
- return elt->n.nexts[level];
- }
-}
-
-static inline void
-clib_slist_set_next_at_level (clib_slist_elt_t * elt, u32 index, int level)
-{
- u32 old_level0_value[2];
- /* level0 and not a vector */
- if (level < 2 && (elt->n.next0[0] == 0 || elt->n.next0[0] & 1))
- {
- if (level == 0)
- {
- elt->n.next0[0] = (index << 1) | 1;
- return;
- }
- elt->n.next0[1] = index;
- return;
- }
- /* have to save old level0 values? */
- if (elt->n.next0[0] & 1)
- {
- old_level0_value[0] = (elt->n.next0[0] == (u32) ~ 0) ?
- elt->n.next0[0] : elt->n.next0[0] >> 1;
- old_level0_value[1] = elt->n.next0[1];
- elt->n.nexts = 0;
- vec_add1 (elt->n.nexts, old_level0_value[0]);
- vec_add1 (elt->n.nexts, old_level0_value[1]);
- }
- vec_validate (elt->n.nexts, level);
- elt->n.nexts[level] = index;
-}
-
-
-typedef struct
-{
- /* pool of skip-list elements */
- clib_slist_elt_t *elts;
-
- /* last search path */
- u32 *path;
-
- /* last search number of compares */
- u32 ncompares;
-
- /* occupancy stats */
- u32 *occupancy;
-
- /* Comparison function */
- clib_slist_key_compare_function_t *compare;
-
- /* Format function */
- format_function_t *format_user_element;
-
- /* items appear in successive plies with Pr (1 / branching_factor) */
- f64 branching_factor;
-
- /* random seed */
- u32 seed;
-} clib_slist_t;
-
-clib_error_t *clib_slist_init (clib_slist_t * sp, f64 branching_factor,
- clib_slist_key_compare_function_t compare,
- format_function_t format_user_element);
-
-format_function_t format_slist;
-
-void clib_slist_add (clib_slist_t * sp, void *key, u32 user_pool_index);
-clib_slist_search_result_t clib_slist_del (clib_slist_t * sp, void *key);
-u32 clib_slist_search (clib_slist_t * sp, void *key, u32 * ncompares);
-
-#endif /* included_slist_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_cuckoo_bihash.c b/src/vppinfra/test_cuckoo_bihash.c
deleted file mode 100644
index e992e26fa7d..00000000000
--- a/src/vppinfra/test_cuckoo_bihash.c
+++ /dev/null
@@ -1,451 +0,0 @@
-/*
- * Copyright (c) 2017 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.
- */
-
-__thread int thread_id = 0;
-
-#include <vppinfra/time.h>
-#include <vppinfra/cache.h>
-#include <vppinfra/error.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/cache.h>
-
-#define os_get_cpu_number() (thread_id)
-
-#include <vppinfra/cuckoo_8_8.h>
-#include <vppinfra/cuckoo_template.h>
-#include <vppinfra/cuckoo_template.c>
-
-#include <vppinfra/bihash_8_8.h>
-#include <vppinfra/bihash_template.h>
-#include <vppinfra/bihash_template.c>
-
-#include <pthread.h>
-
-#define MAX_THREADS 255
-
-typedef struct
-{
- void *tm;
- int thread_idx;
- u64 nlookups;
-} thread_data_t;
-
-typedef struct
-{
- u64 deadline;
- u64 seed;
- u32 nbuckets;
- u32 nitems;
- u32 runtime;
- int verbose;
- int non_random_keys;
- int nthreads;
- int search_iter;
- uword *key_hash;
- u64 *keys;
- CVT (clib_cuckoo) ch;
- BVT (clib_bihash) bh;
- clib_time_t clib_time;
- u64 *key_add_del_sequence;
- u8 *key_op_sequence;
- u64 *key_search_sequence[MAX_THREADS];
- unformat_input_t *input;
- u64 nadds;
- u64 ndels;
- pthread_t bwriter_thread;
- pthread_t breader_threads[MAX_THREADS];
- pthread_t cwriter_thread;
- pthread_t creader_threads[MAX_THREADS];
- thread_data_t wthread_data;
- thread_data_t rthread_data[MAX_THREADS];
-} test_main_t;
-
-test_main_t test_main;
-
-uword
-vl (void *v)
-{
- return vec_len (v);
-}
-
-#define w_thread(x, guts) \
- void *x##writer_thread (void *v) \
- { \
- test_main_t *tm = v; \
- uword counter = 0; \
- u64 nadds = 0; \
- u64 ndels = 0; \
- u64 deadline = tm->deadline; \
- do \
- { \
- for (counter = 0; counter < vec_len (tm->key_add_del_sequence); \
- ++counter) \
- { \
- u64 idx = tm->key_add_del_sequence[counter]; \
- u8 op = tm->key_op_sequence[counter]; \
- if (op) \
- { \
- ++nadds; \
- } \
- else \
- { \
- ++ndels; \
- } \
- guts; \
- if (clib_cpu_time_now () > deadline) \
- { \
- break; \
- } \
- } \
- } \
- while (clib_cpu_time_now () < deadline); \
- tm->nadds = nadds; \
- tm->ndels = ndels; \
- return NULL; \
- }
-
-/* *INDENT-OFF* */
-w_thread (b, {
- BVT (clib_bihash_kv) kv;
- kv.key = tm->keys[idx];
- kv.value = *hash_get (tm->key_hash, kv.key);
- BV (clib_bihash_add_del) (&tm->bh, &kv, op);
-});
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-w_thread (c, {
- CVT (clib_cuckoo_kv) kv;
- kv.key = tm->keys[idx];
- kv.value = *hash_get (tm->key_hash, kv.key);
- CV (clib_cuckoo_add_del) (&tm->ch, &kv, op, 0);
-});
-/* *INDENT-ON* */
-
-#define r_thread(x, guts) \
- void *x##reader_thread (void *v) \
- { \
- thread_data_t *data = v; \
- thread_id = data->thread_idx; \
- test_main_t *tm = data->tm; \
- uword thread_idx = data->thread_idx; \
- u64 *idx; \
- uword nlookups = 0; \
- u64 deadline = tm->deadline; \
- do \
- { \
- vec_foreach (idx, tm->key_search_sequence[thread_idx]) \
- { \
- guts; \
- ++nlookups; \
- if (clib_cpu_time_now () > deadline) \
- { \
- break; \
- } \
- } \
- } \
- while (clib_cpu_time_now () < deadline); \
- data->nlookups = nlookups; \
- return NULL; \
- }
-
-/* *INDENT-OFF* */
-r_thread (c, {
- CVT (clib_cuckoo_kv) kv;
- kv.key = tm->keys[*idx];
- kv.value = *hash_get (tm->key_hash, kv.key);
- CV (clib_cuckoo_search) (&tm->ch, &kv, &kv);
-});
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-r_thread (b, {
- BVT (clib_bihash_kv) kv;
- kv.key = tm->keys[*idx];
- kv.value = *hash_get (tm->key_hash, kv.key);
- BV (clib_bihash_search) (&tm->bh, &kv, &kv);
-});
-/* *INDENT-ON* */
-
-#define run_threads(x) \
- do \
- { \
- \
- before = clib_time_now (&tm->clib_time); \
- tm->deadline = clib_cpu_time_now () + \
- tm->runtime * tm->clib_time.clocks_per_second; \
- fformat (stdout, #x "-> Start threads..., runtime is %llu second(s)\n", \
- (long long unsigned)tm->runtime); \
- \
- /* \
- fformat (stdout, #x "-> Writer thread only...\n"); \
- if (0 != \
- pthread_create (&tm->x##writer_thread, NULL, x##writer_thread, tm)) \
- { \
- perror ("pthread_create()"); \
- abort (); \
- } \
- \
- if (0 != pthread_join (tm->x##writer_thread, NULL)) \
- { \
- perror ("pthread_join()"); \
- abort (); \
- } \
- \
- delta = clib_time_now (&tm->clib_time) - before; \
- fformat (stdout, #x "-> %wu adds, %wu dels in %.6f seconds\n", \
- tm->nadds, tm->ndels, delta); \
- tm->nadds = 0; \
- tm->ndels = 0; \
- */ \
- \
- fformat (stdout, #x "-> Writer + %d readers\n", tm->nthreads); \
- before = clib_time_now (&tm->clib_time); \
- tm->deadline = clib_cpu_time_now () + \
- tm->runtime * tm->clib_time.clocks_per_second; \
- if (0 != \
- pthread_create (&tm->x##writer_thread, NULL, x##writer_thread, tm)) \
- { \
- perror ("pthread_create()"); \
- abort (); \
- } \
- \
- for (i = 0; i < tm->nthreads; i++) \
- { \
- tm->rthread_data[i].nlookups = 0; \
- if (0 != pthread_create (&tm->x##reader_threads[i], NULL, \
- x##reader_thread, &tm->rthread_data[i])) \
- { \
- perror ("pthread_create()"); \
- abort (); \
- } \
- } \
- \
- if (0 != pthread_join (tm->x##writer_thread, NULL)) \
- { \
- perror ("pthread_join()"); \
- abort (); \
- } \
- \
- for (i = 0; i < tm->nthreads; i++) \
- { \
- if (0 != pthread_join (tm->x##reader_threads[i], NULL)) \
- { \
- perror ("pthread_join()"); \
- abort (); \
- } \
- } \
- \
- delta = clib_time_now (&tm->clib_time) - before; \
- \
- total_searches = 0; \
- for (i = 0; i < tm->nthreads; ++i) \
- { \
- u64 nlookups = tm->rthread_data[i].nlookups; \
- fformat (stdout, #x "-> Thread #%d: %u searches\n", i, nlookups); \
- total_searches += nlookups; \
- } \
- \
- if (delta > 0) \
- { \
- ops = (tm->nadds + tm->ndels) / (f64)delta; \
- fformat (stdout, #x "-> %.f add/dels per second\n", ops); \
- sps = ((f64)total_searches) / delta; \
- fformat (stdout, #x "-> %.f searches per second\n", sps); \
- } \
- \
- fformat (stdout, \
- #x "-> %wu adds, %wu dels, %lld searches in %.6f seconds\n", \
- tm->nadds, tm->ndels, total_searches, delta); \
- } \
- while (0);
-
-static void
-cb (CVT (clib_cuckoo) * h, void *ctx)
-{
- fformat (stdout, "Garbage callback called...\n");
-}
-
-static clib_error_t *
-test_cuckoo_bihash (test_main_t * tm)
-{
- int i;
- uword *p;
- uword total_searches;
- f64 before, delta;
- f64 ops = 0, sps = 0;
- f64 bops = 0, bsps = 0;
- f64 cops = 0, csps = 0;
- CVT (clib_cuckoo) * ch;
- BVT (clib_bihash) * bh;
-
- ch = &tm->ch;
- bh = &tm->bh;
-
- CV (clib_cuckoo_init) (ch, "test", 1, cb, NULL);
- BV (clib_bihash_init) (bh, (char *) "test", tm->nbuckets, 256 << 20);
-
- fformat (stdout, "Pick %lld unique %s keys...\n", tm->nitems,
- tm->non_random_keys ? "non-random" : "random");
-
- for (i = 0; i < tm->nitems; i++)
- {
- u64 rndkey;
-
- if (tm->non_random_keys == 0)
- {
-
- again:
- rndkey = random_u64 (&tm->seed);
-
- p = hash_get (tm->key_hash, rndkey);
- if (p)
- goto again;
- }
- else
- rndkey = (u64) (i + 1) << 16;
-
- hash_set (tm->key_hash, rndkey, i + 1);
- vec_add1 (tm->keys, rndkey);
-
- int j;
- for (j = 0; j < tm->nthreads; ++j)
- {
- u64 *x = tm->key_search_sequence[j];
- vec_add1 (x, random_u64 (&tm->seed) % tm->nitems);
- tm->key_search_sequence[j] = x;
- }
- vec_add1 (tm->key_add_del_sequence,
- random_u64 (&tm->seed) % tm->nitems);
- vec_add1 (tm->key_op_sequence, (rndkey % 10 < 8) ? 1 : 0);
- }
-
- int thread_counter = 0;
- tm->wthread_data.tm = tm;
- tm->wthread_data.thread_idx = thread_counter;
- for (i = 0; i < tm->nthreads; ++i)
- {
- tm->rthread_data[i].tm = tm;
- tm->rthread_data[i].thread_idx = thread_counter;
- tm->rthread_data[i].nlookups = 0;
- ++thread_counter;
- }
-
- int iter;
- for (iter = 0; iter < tm->search_iter; ++iter)
- {
- fformat (stdout, "Bihash test #%d\n", iter);
- run_threads (b);
- bops = ops;
- bsps = sps;
- fformat (stdout, "%U", BV (format_bihash), bh, 0);
- fformat (stdout, "Cuckoo test #%d\n", iter);
- run_threads (c);
- cops = ops;
- csps = sps;
- fformat (stdout, "%U", CV (format_cuckoo), ch, 0);
- fformat (stdout,
- "Bihash add/del speed is %.2f%% of cuckoo add/del speed\n",
- bops / cops * 100);
- fformat (stdout,
- "Bihash search speed is %.2f%% of cuckoo search speed\n",
- bsps / csps * 100);
- }
- return 0;
-}
-
-clib_error_t *
-test_cuckoo_bihash_main (test_main_t * tm)
-{
- unformat_input_t *i = tm->input;
- clib_error_t *error;
-
- while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (i, "seed %u", &tm->seed))
- ;
- else if (unformat (i, "nbuckets %d", &tm->nbuckets))
- ;
- else if (unformat (i, "non-random-keys"))
- tm->non_random_keys = 1;
- else if (unformat (i, "nitems %d", &tm->nitems))
- ;
- else if (unformat (i, "search_iter %d", &tm->search_iter))
- ;
- else if (unformat (i, "verbose %d", &tm->verbose))
- ;
- else if (unformat (i, "runtime %d", &tm->runtime))
- ;
- else if (unformat (i, "nthreads %d", &tm->nthreads))
- ;
- else if (unformat (i, "verbose"))
- tm->verbose = 1;
- else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, i);
- }
-
- error = test_cuckoo_bihash (tm);
-
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- clib_error_t *error;
- test_main_t *tm = &test_main;
- clib_memset (&test_main, 0, sizeof (test_main));
-
- clib_mem_init (0, 3ULL << 30);
-
- tm->input = &i;
- tm->seed = 0xdeaddabe;
-
- tm->nbuckets = 2;
- tm->nitems = 5;
- tm->verbose = 1;
- tm->nthreads = 1;
- clib_time_init (&tm->clib_time);
- tm->runtime = 1;
- tm->search_iter = 1;
- tm->key_hash = hash_create (0, sizeof (uword));
-
- unformat_init_command_line (&i, argv);
- error = test_cuckoo_bihash_main (tm);
- unformat_free (&i);
-
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_cuckoo_template.c b/src/vppinfra/test_cuckoo_template.c
deleted file mode 100644
index 9619dc2e802..00000000000
--- a/src/vppinfra/test_cuckoo_template.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * Copyright (c) 2017 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.
- */
-
-#include <vppinfra/time.h>
-#include <vppinfra/cache.h>
-#include <vppinfra/error.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/cache.h>
-
-#include <vppinfra/time.h>
-#include <vppinfra/cache.h>
-#include <vppinfra/error.h>
-
-#include <vppinfra/cuckoo_8_8.h>
-#include <vppinfra/cuckoo_template.h>
-#include <vppinfra/cuckoo_template.c>
-
-typedef struct
-{
- u64 seed;
- u32 nbuckets;
- u32 nitems;
- u32 search_iter;
- int careful_delete_tests;
- int verbose;
- int non_random_keys;
- uword *key_hash;
- u64 *keys;
- CVT (clib_cuckoo) hash;
- clib_time_t clib_time;
-
- unformat_input_t *input;
-
-} test_main_t;
-
-test_main_t test_main;
-
-uword
-vl (void *v)
-{
- return vec_len (v);
-}
-
-void
-do_search (test_main_t * tm, CVT (clib_cuckoo) * h)
-{
- int i, j;
- CVT (clib_cuckoo_kv) kv;
- for (j = 0; j < tm->search_iter; j++)
- {
- for (i = 0; i < tm->nitems; i++)
- {
- kv.key = tm->keys[i];
- if (CV (clib_cuckoo_search) (h, &kv, &kv) < 0)
- if (CV (clib_cuckoo_search) (h, &kv, &kv) < 0)
- clib_warning ("[%d] search for key %llu failed unexpectedly\n",
- i, tm->keys[i]);
- if (kv.value != (u64) (i + 1))
- clib_warning
- ("[%d] search for key %llu returned %llu, not %llu\n", i,
- tm->keys[i], kv.value, (u64) (i + 1));
- }
- }
-}
-
-static void
-cb (CVT (clib_cuckoo) * h, void *ctx)
-{
- fformat (stdout, "Garbage callback called...");
- if (clib_cpu_time_now () % 3)
- {
- fformat (stdout, "collecting garbage...\n");
- CV (clib_cuckoo_garbage_collect) (h);
- }
- else
- {
- fformat (stdout, "ignoring for now...\n");
- }
-}
-
-static clib_error_t *
-test_cuckoo (test_main_t * tm)
-{
- int i;
- uword *p;
- uword total_searches;
- f64 before, delta;
- CVT (clib_cuckoo) * h;
- CVT (clib_cuckoo_kv) kv;
-
- h = &tm->hash;
-
- CV (clib_cuckoo_init) (h, "test", tm->nbuckets, cb, NULL);
-
- fformat (stdout, "Pick %lld unique %s keys...\n", tm->nitems,
- tm->non_random_keys ? "non-random" : "random");
-
- for (i = 0; i < tm->nitems; i++)
- {
- u64 rndkey;
-
- if (tm->non_random_keys == 0)
- {
-
- again:
- rndkey = random_u64 (&tm->seed);
-
- p = hash_get (tm->key_hash, rndkey);
- if (p)
- goto again;
- }
- else
- rndkey = (u64) (i + 1) << 16;
-
- hash_set (tm->key_hash, rndkey, i + 1);
- vec_add1 (tm->keys, rndkey);
- }
-
- fformat (stdout, "Add items...\n");
- for (i = 0; i < tm->nitems; i++)
- {
- kv.key = tm->keys[i];
- kv.value = i + 1;
-
- CV (clib_cuckoo_add_del) (h, &kv, 1 /* is_add */ ,
- 0 /* overwrite */ );
-
- if (tm->verbose > 1)
- {
- fformat (stdout, "--------------------\n");
- fformat (stdout, "After adding key %llu value %lld...\n",
- tm->keys[i], (u64) (i + 1));
- fformat (stdout, "%U", CV (format_cuckoo), h,
- 2 /* very verbose */ );
- }
-
- CVT (clib_cuckoo_kv) kv2;
- int rv = CV (clib_cuckoo_search) (h, &kv, &kv2);
- ASSERT (CLIB_CUCKOO_ERROR_SUCCESS == rv);
- }
-
- fformat (stdout, "%U", CV (format_cuckoo), h, 0 /* very verbose */ );
-
- fformat (stdout, "Search for items %d times...\n", tm->search_iter);
-
- before = clib_time_now (&tm->clib_time);
-
- do_search (tm, h);
-
- delta = clib_time_now (&tm->clib_time) - before;
- total_searches = (uword) tm->search_iter * (uword) tm->nitems;
-
- if (delta > 0)
- fformat (stdout, "%.f searches per second\n",
- ((f64) total_searches) / delta);
-
- fformat (stdout, "%lld searches in %.6f seconds\n", total_searches, delta);
-
-#if 0
- int j;
- fformat (stdout, "Standard E-hash search for items %d times...\n",
- tm->search_iter);
-
- before = clib_time_now (&tm->clib_time);
-
- for (j = 0; j < tm->search_iter; j++)
- {
- for (i = 0; i < tm->nitems; i++)
- {
- p = hash_get (tm->key_hash, tm->keys[i]);
- if (p == 0 || p[0] != (uword) (i + 1))
- clib_warning ("ugh, couldn't find %lld\n", tm->keys[i]);
- }
- }
-
- delta = clib_time_now (&tm->clib_time) - before;
- total_searches = (uword) tm->search_iter * (uword) tm->nitems;
-
- fformat (stdout, "%lld searches in %.6f seconds\n", total_searches, delta);
-
- if (delta > 0)
- fformat (stdout, "%.f searches per second\n",
- ((f64) total_searches) / delta);
-
-#endif
- fformat (stdout, "Delete items...\n");
-
- for (i = 0; i < tm->nitems; i++)
- {
- int j;
- int rv;
-
- kv.key = tm->keys[i];
- kv.value = (u64) (i + 1);
- rv = CV (clib_cuckoo_add_del) (h, &kv, 0 /* is_add */ ,
- 0 /* dont_overwrite */ );
-
- if (rv < 0)
- clib_warning ("delete key %lld not ok but should be", tm->keys[i]);
-
- if (tm->careful_delete_tests)
- {
- for (j = 0; j < tm->nitems; j++)
- {
- kv.key = tm->keys[j];
- rv = CV (clib_cuckoo_search) (h, &kv, &kv);
- if (j <= i && rv >= 0)
- {
- clib_warning
- ("i %d j %d search ok but should not be, value %lld", i,
- j, kv.value);
- }
- if (j > i && rv < 0)
- {
- clib_warning ("i %d j %d search not ok but should be", i,
- j);
- }
- }
- }
- }
-
- fformat (stdout, "After deletions, should be empty...\n");
-
- fformat (stdout, "%U", CV (format_cuckoo), h, 0 /* very verbose */ );
- return 0;
-}
-
-clib_error_t *
-test_cuckoo_main (test_main_t * tm)
-{
- unformat_input_t *i = tm->input;
- clib_error_t *error;
-
- while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (i, "seed %u", &tm->seed))
- ;
- else if (unformat (i, "nbuckets %d", &tm->nbuckets))
- ;
- else if (unformat (i, "non-random-keys"))
- tm->non_random_keys = 1;
- else if (unformat (i, "nitems %d", &tm->nitems))
- ;
- else if (unformat (i, "careful %d", &tm->careful_delete_tests))
- ;
- else if (unformat (i, "verbose %d", &tm->verbose))
- ;
- else if (unformat (i, "search %d", &tm->search_iter))
- ;
- else if (unformat (i, "verbose"))
- tm->verbose = 1;
- else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, i);
- }
-
- error = test_cuckoo (tm);
-
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- clib_error_t *error;
- test_main_t *tm = &test_main;
-
- clib_mem_init (0, 3ULL << 30);
-
- tm->input = &i;
- tm->seed = 0xdeaddabe;
-
- tm->nbuckets = 2;
- tm->nitems = 100000;
- tm->verbose = 1;
- tm->search_iter = 10000;
- tm->careful_delete_tests = 0;
- tm->key_hash = hash_create (0, sizeof (uword));
- clib_time_init (&tm->clib_time);
-
- unformat_init_command_line (&i, argv);
- error = test_cuckoo_main (tm);
- unformat_free (&i);
-
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_flowhash_template.c b/src/vppinfra/test_flowhash_template.c
deleted file mode 100644
index 19ac4edf2e2..00000000000
--- a/src/vppinfra/test_flowhash_template.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-
-#include <vppinfra/time.h>
-#include <vppinfra/cache.h>
-#include <vppinfra/error.h>
-
-#include <vppinfra/heap.h>
-#include <vppinfra/format.h>
-#include <vppinfra/random.h>
-#include <vppinfra/hash.h>
-
-#include <vppinfra/flowhash_8_8.h>
-
-/* Not actually tested here. But included for compilation purposes. */
-#include <vppinfra/flowhash_24_16.h>
-
-typedef struct
-{
- u64 seed;
- u32 fixed_entries;
- u32 collision_buckets;
- u32 nitems;
- u32 iterations;
- u32 prefetch;
- int non_random_keys;
- uword *key_hash;
- flowhash_lkey_8_8_t *keys;
- flowhash_8_8_t *hash;
- clib_time_t clib_time;
- unformat_input_t *input;
-} test_main_t;
-
-test_main_t test_main;
-
-static clib_error_t *
-test_flowhash (test_main_t * tm)
-{
- f64 before, delta;
- u64 total;
- u32 overflow;
- int i, j;
- uword *p;
- tm->hash = flowhash_alloc_8_8 (tm->fixed_entries, tm->collision_buckets);
- if (tm->hash == NULL)
- return clib_error_return (0, "Could not alloc hash");
-
- fformat (stdout, "Allocated hash memory size: %llu\n",
- flowhash_memory_size (tm->hash));
-
- fformat (stdout, "Pick %lld unique %s keys...\n",
- tm->nitems, tm->non_random_keys ? "non-random" : "random");
-
- for (i = 0; i < tm->nitems; i++)
- {
- flowhash_lkey_8_8_t rndkey;
- if (tm->non_random_keys == 0)
- {
- again:
- rndkey.as_u64[0] = random_u64 (&tm->seed);
- if ((p = hash_get (tm->key_hash, rndkey.as_u64[0])))
- goto again;
- }
- else
- rndkey.as_u64[0] = (u64) (i + 1) << 16;
-
- hash_set (tm->key_hash, rndkey.as_u64[0], i + 1);
- vec_add1 (tm->keys, rndkey);
- }
-
- hash_free (tm->key_hash);
-
- /* Additions */
- overflow = 0;
- before = clib_time_now (&tm->clib_time);
- fformat (stdout, "Adding %u items...\n", tm->nitems);
- for (i = 0; i < tm->nitems; i++)
- {
- u32 hash = flowhash_hash_8_8 (&tm->keys[i]);
- u32 ei;
- flowhash_get_8_8 (tm->hash, &tm->keys[i], hash, 1, &ei);
- if (flowhash_is_overflow (ei))
- overflow++;
-
- /* Set value (No matter if success) */
- flowhash_value (tm->hash, ei)->as_u64[0] = i + 1;
-
- /* Save value until time > 1 */
- flowhash_timeout (tm->hash, ei) = 1;
- }
-
- delta = clib_time_now (&tm->clib_time) - before;
- total = tm->nitems;
- fformat (stdout, "%lld additions in %.6f seconds\n", total, delta);
- if (delta > 0)
- fformat (stdout, "%.f additions per second\n", ((f64) total) / delta);
-
- fformat (stdout, "%u elements in table\n", flowhash_elts_8_8 (tm->hash, 1));
- fformat (stdout, "Flowhash counters:\n");
- fformat (stdout, " collision-lookup: %lu\n",
- tm->hash->collision_lookup_counter);
- fformat (stdout, " not-enough-buckets: %lu\n",
- tm->hash->not_enough_buckets_counter);
- fformat (stdout, " overflows: %lu\n", overflow);
-
- /* Lookups (very similar to additions) */
- overflow = 0;
- before = clib_time_now (&tm->clib_time);
- fformat (stdout, "Looking up %u items %u times...\n", tm->nitems,
- tm->iterations);
-
- for (j = 0; j < tm->iterations; j++)
- {
- i = 0;
- if (tm->prefetch)
- for (; i < tm->nitems - tm->prefetch; i++)
- {
- u32 ei;
- u32 hash = flowhash_hash_8_8 (&tm->keys[i + tm->prefetch]);
- flowhash_prefetch (tm->hash, hash);
- hash = flowhash_hash_8_8 (&tm->keys[i]);
- flowhash_get_8_8 (tm->hash, &tm->keys[i], hash, 1, &ei);
- if (flowhash_is_overflow (ei))
- overflow++;
- else if (flowhash_timeout (tm->hash, ei) != 1)
- clib_warning ("Key not found: %lld\n", tm->keys[i].as_u64[0]);
- else if (flowhash_value (tm->hash, ei)->as_u64[0] != i + 1)
- clib_warning ("Value mismatch for key %lld\n",
- tm->keys[i].as_u64[0]);
- }
-
- for (; i < tm->nitems; i++)
- {
- u32 ei;
- u32 hash = flowhash_hash_8_8 (&tm->keys[i]);
- flowhash_get_8_8 (tm->hash, &tm->keys[i], hash, 1, &ei);
- if (flowhash_is_overflow (ei))
- overflow++;
- else if (flowhash_timeout (tm->hash, ei) != 1)
- clib_warning ("Key not found: %lld\n", tm->keys[i].as_u64[0]);
- else if (flowhash_value (tm->hash, ei)->as_u64[0] != i + 1)
- clib_warning ("Value mismatch for key %lld\n",
- tm->keys[i].as_u64[0]);
- }
- }
-
- delta = clib_time_now (&tm->clib_time) - before;
- total = tm->nitems * tm->iterations;
- fformat (stdout, "%lld lookups in %.6f seconds\n", total, delta);
- if (delta > 0)
- fformat (stdout, "%.f lookups per second\n", ((f64) total) / delta);
-
- /* Delete */
- for (i = 0; i < tm->nitems; i++)
- {
- u32 hash = flowhash_hash_8_8 (&tm->keys[i]);
- u32 ei;
- flowhash_get_8_8 (tm->hash, &tm->keys[i], hash, 1, &ei);
- flowhash_timeout (tm->hash, ei) = 0;
- }
-
- fformat (stdout, "%u elements in table\n", flowhash_elts_8_8 (tm->hash, 1));
-
- vec_free (tm->keys);
- flowhash_free_8_8 (tm->hash);
-
- return NULL;
-}
-
-clib_error_t *
-test_flowhash_main (test_main_t * tm)
-{
- unformat_input_t *i = tm->input;
- clib_error_t *error;
-
- while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (i, "seed %u", &tm->seed))
- ;
- else if (unformat (i, "fixed-entries %d", &tm->fixed_entries))
- ;
- else if (unformat (i, "collision-buckets %d", &tm->collision_buckets))
- ;
- else if (unformat (i, "non-random-keys"))
- tm->non_random_keys = 1;
- else if (unformat (i, "nitems %d", &tm->nitems))
- ;
- else if (unformat (i, "prefetch %d", &tm->prefetch))
- ;
- else if (unformat (i, "iterations %d", &tm->iterations))
- ;
- else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, i);
- }
-
- error = test_flowhash (tm);
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
-
- unformat_input_t i;
- clib_error_t *error;
- test_main_t *tm = &test_main;
-
- clib_mem_init (0, 3ULL << 30);
-
- tm->fixed_entries = 8 << 20;
- tm->collision_buckets = 1 << 20;
- tm->seed = 0xdeadf00l;
- tm->iterations = 1;
- tm->input = &i;
- tm->nitems = 1000;
- tm->non_random_keys = 0;
- tm->key_hash = hash_create (0, sizeof (uword));
- tm->prefetch = 0;
- clib_time_init (&tm->clib_time);
-
- unformat_init_command_line (&i, argv);
- error = test_flowhash_main (tm);
- unformat_free (&i);
-
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- return 0;
-
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_phash.c b/src/vppinfra/test_phash.c
deleted file mode 100644
index 47711c28dbc..00000000000
--- a/src/vppinfra/test_phash.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2005 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include <vppinfra/phash.h>
-#include <vppinfra/format.h>
-#include <vppinfra/random.h>
-
-static int verbose;
-#define if_verbose(format,args...) \
- if (verbose) { clib_warning(format, ## args); }
-
-int
-test_phash_main (unformat_input_t * input)
-{
- phash_main_t _pm = { 0 }, *pm = &_pm;
- int n_keys, random_keys;
- u32 seed;
- clib_error_t *error;
-
- random_keys = 1;
- n_keys = 1000;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (0 == unformat (input, "keys %d", &n_keys)
- && 0 == unformat (input, "verbose %=", &verbose, 1)
- && 0 == unformat (input, "random-keys %=", &random_keys, 1)
- && 0 == unformat (input, "sequential-keys %=", &random_keys, 0)
- && 0 == unformat (input, "seed %d", &pm->random_seed)
- && 0 == unformat (input, "64-bit %|", &pm->flags, PHASH_FLAG_MIX64)
- && 0 == unformat (input, "32-bit %|", &pm->flags, PHASH_FLAG_MIX32)
- && 0 == unformat (input, "fast %|", &pm->flags,
- PHASH_FLAG_FAST_MODE)
- && 0 == unformat (input, "slow %|", &pm->flags,
- PHASH_FLAG_SLOW_MODE)
- && 0 == unformat (input, "minimal %|", &pm->flags,
- PHASH_FLAG_MINIMAL)
- && 0 == unformat (input, "non-minimal %|", &pm->flags,
- PHASH_FLAG_NON_MINIMAL))
- clib_error ("unknown input `%U'", format_unformat_error, input);
- }
-
- if (!pm->random_seed)
- pm->random_seed = random_default_seed ();
-
- if_verbose
- ("%d %d-bit keys, random seed %d, %s mode, looking for %sminimal hash",
- n_keys, (pm->flags & PHASH_FLAG_MIX64) ? 64 : 32, pm->random_seed,
- (pm->flags & PHASH_FLAG_FAST_MODE) ? "fast" : "slow",
- (pm->flags & PHASH_FLAG_MINIMAL) ? "" : "non-");
-
- seed = pm->random_seed;
-
- /* Initialize random keys. */
- {
- phash_key_t *k;
-
- vec_resize (pm->keys, n_keys);
- vec_foreach (k, pm->keys)
- {
- k->key = k - pm->keys;
- if (random_keys)
- {
- if (pm->flags & PHASH_FLAG_MIX64)
- k->key = random_u64 (&seed);
- else
- k->key = random_u32 (&seed);
- }
- }
- }
-
- error = phash_find_perfect_hash (pm);
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- else
- {
- if_verbose ("(%d,%d) (a,b) bits, %d seeds tried, %d tree walks",
- pm->a_bits, pm->b_bits,
- pm->n_seed_trials, pm->n_perfect_calls);
-
- error = phash_validate (pm);
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- }
-
- return 0;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- int res;
-
- clib_mem_init (0, 64ULL << 20);
-
- verbose = (argc > 1);
- unformat_init_command_line (&i, argv);
- res = test_phash_main (&i);
- unformat_free (&i);
- return res;
-}
-#endif
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_qhash.c b/src/vppinfra/test_qhash.c
deleted file mode 100644
index a520fa4bd77..00000000000
--- a/src/vppinfra/test_qhash.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-#include <vppinfra/bitmap.h>
-#include <vppinfra/os.h>
-#include <vppinfra/qhash.h>
-#include <vppinfra/random.h>
-#include <vppinfra/time.h>
-
-typedef struct
-{
- u32 n_iter, seed, n_keys, n_hash_keys, verbose;
-
- u32 max_vector;
-
- uword *hash;
-
- uword *keys_in_hash_bitmap;
-
- u32 *qhash;
-
- uword *keys;
-
- uword *lookup_keys;
- uword *lookup_key_indices;
- u32 *lookup_results;
-
- u32 *get_multiple_results;
-
- clib_time_t time;
-
- f64 overflow_fraction, ave_elts;
- f64 get_time, hash_get_time;
- f64 set_time, set_count;
- f64 unset_time, unset_count;
- f64 hash_set_time, hash_unset_time;
-} test_qhash_main_t;
-
-clib_error_t *
-test_qhash_main (unformat_input_t * input)
-{
- clib_error_t *error = 0;
- test_qhash_main_t _tm, *tm = &_tm;
- uword i, iter;
-
- clib_memset (tm, 0, sizeof (tm[0]));
- tm->n_iter = 10;
- tm->seed = 1;
- tm->n_keys = 10;
- tm->max_vector = 1;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "iter %d", &tm->n_iter))
- ;
- else if (unformat (input, "seed %d", &tm->seed))
- ;
- else if (unformat (input, "keys %d", &tm->n_keys))
- ;
- else if (unformat (input, "size %d", &tm->n_hash_keys))
- ;
- else if (unformat (input, "vector %d", &tm->max_vector))
- ;
- else if (unformat (input, "verbose"))
- tm->verbose = 1;
- else
- {
- error = clib_error_create ("unknown input `%U'\n",
- format_unformat_error, input);
- goto done;
- }
- }
-
- if (!tm->seed)
- tm->seed = random_default_seed ();
-
- clib_time_init (&tm->time);
-
- clib_warning ("iter %d, seed %u, keys %d, max vector %d, ",
- tm->n_iter, tm->seed, tm->n_keys, tm->max_vector);
-
- vec_resize (tm->keys, tm->n_keys);
- vec_resize (tm->get_multiple_results, tm->n_keys);
- for (i = 0; i < vec_len (tm->keys); i++)
- tm->keys[i] = random_uword (&tm->seed);
-
- if (!tm->n_hash_keys)
- tm->n_hash_keys = 2 * max_pow2 (tm->n_keys);
- tm->n_hash_keys = clib_max (tm->n_keys, tm->n_hash_keys);
- qhash_resize (tm->qhash, tm->n_hash_keys);
-
- {
- qhash_t *h = qhash_header (tm->qhash);
- int i;
- for (i = 0; i < ARRAY_LEN (h->hash_seeds); i++)
- h->hash_seeds[i] = random_uword (&tm->seed);
- }
-
- vec_resize (tm->lookup_keys, tm->max_vector);
- vec_resize (tm->lookup_key_indices, tm->max_vector);
- vec_resize (tm->lookup_results, tm->max_vector);
-
- for (iter = 0; iter < tm->n_iter; iter++)
- {
- uword *p, j, n, is_set;
-
- n = tm->max_vector;
-
- is_set = random_u32 (&tm->seed) & 1;
- is_set |= hash_elts (tm->hash) < (tm->n_keys / 4);
- if (hash_elts (tm->hash) > (3 * tm->n_keys) / 4)
- is_set = 0;
-
- _vec_len (tm->lookup_keys) = n;
- _vec_len (tm->lookup_key_indices) = n;
- j = 0;
- while (j < n)
- {
- i = random_u32 (&tm->seed) % vec_len (tm->keys);
- if (clib_bitmap_get (tm->keys_in_hash_bitmap, i) != is_set)
- {
- f64 t[2];
- tm->lookup_key_indices[j] = i;
- tm->lookup_keys[j] = tm->keys[i];
- t[0] = clib_time_now (&tm->time);
- if (is_set)
- hash_set (tm->hash, tm->keys[i], i);
- else
- hash_unset (tm->hash, tm->keys[i]);
- t[1] = clib_time_now (&tm->time);
- if (is_set)
- tm->hash_set_time += t[1] - t[0];
- else
- tm->hash_unset_time += t[1] - t[0];
- tm->keys_in_hash_bitmap
- = clib_bitmap_set (tm->keys_in_hash_bitmap, i, is_set);
- j++;
- }
- }
-
- {
- f64 t[2];
-
- if (is_set)
- {
- t[0] = clib_time_now (&tm->time);
- qhash_set_multiple (tm->qhash,
- tm->lookup_keys,
- vec_len (tm->lookup_keys),
- tm->lookup_results);
- t[1] = clib_time_now (&tm->time);
- tm->set_time += t[1] - t[0];
- tm->set_count += vec_len (tm->lookup_keys);
- for (i = 0; i < vec_len (tm->lookup_keys); i++)
- {
- uword r = tm->lookup_results[i];
- *vec_elt_at_index (tm->qhash, r) = tm->lookup_key_indices[i];
- }
- }
- else
- {
- t[0] = clib_time_now (&tm->time);
- qhash_unset_multiple (tm->qhash,
- tm->lookup_keys,
- vec_len (tm->lookup_keys),
- tm->lookup_results);
- t[1] = clib_time_now (&tm->time);
- tm->unset_time += t[1] - t[0];
- tm->unset_count += vec_len (tm->lookup_keys);
-
- for (i = 0; i < vec_len (tm->lookup_keys); i++)
- {
- uword r = tm->lookup_results[i];
- *vec_elt_at_index (tm->qhash, r) = ~0;
- }
- }
- }
-
- if (qhash_elts (tm->qhash) != hash_elts (tm->hash))
- os_panic ();
-
- {
- qhash_t *h;
- uword i, k, l, count;
-
- h = qhash_header (tm->qhash);
-
- for (i = k = 0; k < vec_len (h->hash_key_valid_bitmap); k++)
- i += count_set_bits (h->hash_key_valid_bitmap[k]);
- k = hash_elts (h->overflow_hash);
- l = qhash_elts (tm->qhash);
- if (i + k != l)
- os_panic ();
-
- count = hash_elts (h->overflow_hash);
- for (i = 0; i < (1 << h->log2_hash_size); i++)
- count += tm->qhash[i] != ~0;
- if (count != qhash_elts (tm->qhash))
- os_panic ();
-
- {
- u32 *tmp = 0;
-
- /* *INDENT-OFF* */
- hash_foreach (k, l, h->overflow_hash, ({
- j = qhash_hash_mix (h, k) / QHASH_KEYS_PER_BUCKET;
- vec_validate (tmp, j);
- tmp[j] += 1;
- }));
- /* *INDENT-ON* */
-
- for (k = 0; k < vec_len (tmp); k++)
- {
- if (k >= vec_len (h->overflow_counts))
- os_panic ();
- if (h->overflow_counts[k] != tmp[k])
- os_panic ();
- }
- for (; k < vec_len (h->overflow_counts); k++)
- if (h->overflow_counts[k] != 0)
- os_panic ();
-
- vec_free (tmp);
- }
- }
-
- {
- f64 t[2];
-
- t[0] = clib_time_now (&tm->time);
- qhash_get_multiple (tm->qhash, tm->keys, vec_len (tm->keys),
- tm->get_multiple_results);
- t[1] = clib_time_now (&tm->time);
- tm->get_time += t[1] - t[0];
-
- for (i = 0; i < vec_len (tm->keys); i++)
- {
- u32 r;
-
- t[0] = clib_time_now (&tm->time);
- p = hash_get (tm->hash, tm->keys[i]);
- t[1] = clib_time_now (&tm->time);
- tm->hash_get_time += t[1] - t[0];
-
- r = qhash_get (tm->qhash, tm->keys[i]);
- if (p)
- {
- if (p[0] != i)
- os_panic ();
- if (*vec_elt_at_index (tm->qhash, r) != i)
- os_panic ();
- }
- else
- {
- if (r != ~0)
- os_panic ();
- }
- if (r != tm->get_multiple_results[i])
- os_panic ();
- }
- }
-
- tm->overflow_fraction +=
- ((f64) qhash_n_overflow (tm->qhash) / qhash_elts (tm->qhash));
- tm->ave_elts += qhash_elts (tm->qhash);
- }
-
- fformat (stderr, "%d iter %.6e overflow, %.4f ave. elts\n",
- tm->n_iter,
- tm->overflow_fraction / tm->n_iter, tm->ave_elts / tm->n_iter);
-
- tm->get_time /= tm->n_iter * vec_len (tm->keys);
- tm->hash_get_time /= tm->n_iter * vec_len (tm->keys);
-
- tm->set_time /= tm->set_count;
- tm->unset_time /= tm->unset_count;
- tm->hash_set_time /= tm->set_count;
- tm->hash_unset_time /= tm->unset_count;
-
- fformat (stderr,
- "get/set/unset clocks %.2e %.2e %.2e clib %.2e %.2e %.2e ratio %.2f %.2f %.2f\n",
- tm->get_time * tm->time.clocks_per_second,
- tm->set_time * tm->time.clocks_per_second,
- tm->unset_time * tm->time.clocks_per_second,
- tm->hash_get_time * tm->time.clocks_per_second,
- tm->hash_set_time * tm->time.clocks_per_second,
- tm->hash_unset_time * tm->time.clocks_per_second,
- tm->hash_get_time / tm->get_time, tm->hash_set_time / tm->set_time,
- tm->hash_unset_time / tm->unset_time);
-
-
-done:
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- clib_error_t *error;
-
- clib_mem_init (0, 64ULL << 20);
-
- unformat_init_command_line (&i, argv);
- error = test_qhash_main (&i);
- unformat_free (&i);
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- else
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_slist.c b/src/vppinfra/test_slist.c
deleted file mode 100644
index 3c3cbf73ca9..00000000000
--- a/src/vppinfra/test_slist.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-
-#ifdef CLIB_UNIX
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#endif
-
-#include <vppinfra/slist.h>
-
-typedef struct
-{
- u32 *random_pool;
- u32 seed;
- u32 iter;
- u32 verbose;
- f64 branching_factor;
- clib_slist_t slist;
-} test_main_t;
-
-test_main_t test_main;
-
-#define foreach_simple_test \
-_(2) \
-_(4) \
-_(3) \
-_(1)
-
-
-void
-run_test (test_main_t * tm)
-{
- int i;
- u32 *tv;
- u32 ncompares;
- u64 total_compares = 0;
-
- if (1)
- {
- /*
- * Add a bunch of random numbers to the skip-list,
- * sorting them.
- */
- for (i = 0; i < tm->iter; i++)
- {
- pool_get (tm->random_pool, tv);
- *tv = random_u32 (&tm->seed);
- clib_slist_add (&tm->slist, tv, tv - tm->random_pool);
- }
- /* make sure we can find each one */
- for (i = 0; i < tm->iter; i++)
- {
- u32 search_result;
- tv = pool_elt_at_index (tm->random_pool, i);
-
- search_result = clib_slist_search (&tm->slist, tv, &ncompares);
- ASSERT (search_result == i);
-
- total_compares += ncompares;
- }
-
- fformat (stdout, "%.2f avg compares/search\n",
- (f64) total_compares / (f64) i);
-
- fformat (stdout, "%U\n", format_slist, &tm->slist,
- tm->iter < 1000 /* verbose */ );
-
- /* delete half of them */
- for (i = tm->iter / 2; i < tm->iter; i++)
- {
- tv = pool_elt_at_index (tm->random_pool, i);
- (void) clib_slist_del (&tm->slist, tv);
- }
-
- /* make sure we can find the set we should find, and no others */
- for (i = 0; i < tm->iter; i++)
- {
- u32 search_result;
- tv = pool_elt_at_index (tm->random_pool, i);
-
- search_result = clib_slist_search (&tm->slist, tv, &ncompares);
- if (i >= tm->iter / 2)
- ASSERT (search_result == (u32) ~ 0);
- else
- ASSERT (search_result == i);
-
- }
-
- fformat (stdout, "%U\n", format_slist, &tm->slist,
- tm->iter < 1000 /* verbose */ );
-
- /* delete the rest */
- for (i = 0; i < tm->iter; i++)
- {
- tv = pool_elt_at_index (tm->random_pool, i);
-
- (void) clib_slist_del (&tm->slist, tv);
- }
-
- fformat (stdout, "%U\n", format_slist, &tm->slist,
- tm->iter < 1000 /* verbose */ );
- }
- else
- {
-
-#define _(n) \
- do { \
- pool_get (tm->random_pool, tv); \
- *tv = n; \
- clib_slist_add (&tm->slist, tv, tv - tm->random_pool); \
- fformat(stdout, "%U\n", format_slist, &tm->slist, 1 /* verbose */); \
- } while (0);
- foreach_simple_test;
-#undef _
- }
-
- return;
-}
-
-word
-test_compare (void *key, u32 elt_index)
-{
- u32 *k = (u32 *) key;
- u32 elt = test_main.random_pool[elt_index];
-
- if (*k < elt)
- return -1;
- if (*k > elt)
- return 1;
- return 0;
-}
-
-u8 *
-test_format (u8 * s, va_list * args)
-{
- u32 elt_index = va_arg (*args, u32);
- u32 elt = test_main.random_pool[elt_index];
-
- return format (s, "%u", elt);
-}
-
-void
-initialize_slist (test_main_t * tm)
-{
- clib_slist_init (&tm->slist, tm->branching_factor,
- test_compare, test_format);
-}
-
-int
-test_slist_main (unformat_input_t * input)
-{
- test_main_t *tm = &test_main;
- u32 tmp;
-
- tm->seed = 0xbabeb00b;
- tm->iter = 100000;
- tm->verbose = 1;
- tm->branching_factor = 1.0 / 5.0;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "seed %d", &tm->seed))
- continue;
- else if (unformat (input, "iter %d", &tm->iter))
- continue;
- else if (unformat (input, "verbose"))
- tm->verbose = 1;
- else if (unformat (input, "branch %d", &tmp))
- {
- if (tmp > 0)
- tm->branching_factor = 1.0 / (f64) tmp;
- else
- fformat (stderr, "warning: branch = 0, ignored\n");
- }
- else
- {
- clib_error ("unknown input `%U'", format_unformat_error, input);
- goto usage;
- }
- }
- initialize_slist (tm);
- run_test (tm);
-
- return 0;
-
-usage:
- fformat (stderr, "usage: test_slist seed <seed> iter <iter> [verbose]\n");
- return 1;
-
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- int ret;
-
- clib_mem_init (0, (u64) 4 << 30);
-
- unformat_init_command_line (&i, argv);
- ret = test_slist_main (&i);
- unformat_free (&i);
-
- return ret;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_timing_wheel.c b/src/vppinfra/test_timing_wheel.c
deleted file mode 100644
index 48020d520a0..00000000000
--- a/src/vppinfra/test_timing_wheel.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-#include <vppinfra/bitmap.h>
-#include <vppinfra/error.h>
-#include <vppinfra/format.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/random.h>
-#include <vppinfra/time.h>
-#include <vppinfra/timing_wheel.h>
-#include <vppinfra/zvec.h>
-
-#include <vppinfra/math.h>
-
-#if __GNUC__ < 4
-#define SQRT(a) a
-#else
-#define SQRT(a) sqrt(a)
-#endif
-
-typedef struct
-{
- uword n_iter;
-
- u32 n_events;
- u32 seed;
- u32 verbose;
-
- /* Time is "synthetic" e.g. not taken from CPU timer. */
- u32 synthetic_time;
-
- clib_time_t time;
- timing_wheel_t timing_wheel;
-
- u64 *events;
-
- f64 max_time;
- f64 wait_time;
-
- f64 total_iterate_time;
- f64 time_iterate_start;
-
- f64 time_per_status_update;
- f64 time_next_status_update;
-} test_timing_wheel_main_t;
-
-typedef struct
-{
- f64 dt;
- f64 fraction;
- u64 count;
-} test_timing_wheel_tmp_t;
-
-static void
-set_event (test_timing_wheel_main_t * tm, uword i)
-{
- timing_wheel_t *w = &tm->timing_wheel;
- u64 cpu_time;
-
- cpu_time = w->current_time_index << w->log2_clocks_per_bin;
- if (tm->synthetic_time)
- cpu_time += random_u32 (&tm->seed) % tm->n_iter;
- else
- cpu_time +=
- random_f64 (&tm->seed) * tm->max_time * tm->time.clocks_per_second;
-
- timing_wheel_insert (w, cpu_time, i);
- timing_wheel_validate (w);
- tm->events[i] = cpu_time;
-}
-
-static int
-test_timing_wheel_tmp_cmp (void *a1, void *a2)
-{
- test_timing_wheel_tmp_t *f1 = a1;
- test_timing_wheel_tmp_t *f2 = a2;
-
- return f1->dt < f2->dt ? -1 : (f1->dt > f2->dt ? +1 : 0);
-}
-
-clib_error_t *
-test_timing_wheel_main (unformat_input_t * input)
-{
- clib_error_t *error = 0;
- test_timing_wheel_main_t _tm, *tm = &_tm;
- timing_wheel_t *w = &tm->timing_wheel;
- uword iter, i;
-
- clib_memset (tm, 0, sizeof (tm[0]));
- tm->n_iter = 10;
- tm->time_per_status_update = 0;
- tm->n_events = 100;
- tm->seed = 1;
- tm->synthetic_time = 1;
- tm->max_time = 1;
- tm->wait_time = 1e-3;
-
- w->validate = 0;
- w->n_wheel_elt_time_bits = 32;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "iter %wd", &tm->n_iter))
- ;
- else if (unformat (input, "events %d", &tm->n_events))
- ;
- else
- if (unformat (input, "elt-time-bits %d", &w->n_wheel_elt_time_bits))
- ;
- else if (unformat (input, "seed %d", &tm->seed))
- ;
- else if (unformat (input, "verbose"))
- tm->verbose = 1;
- else if (unformat (input, "validate"))
- w->validate = 1;
-
- else if (unformat (input, "real-time"))
- tm->synthetic_time = 0;
- else if (unformat (input, "synthetic-time"))
- tm->synthetic_time = 1;
- else if (unformat (input, "max-time %f", &tm->max_time))
- ;
- else if (unformat (input, "wait-time %f", &tm->wait_time))
- ;
- else if (unformat (input, "iter-time %f", &tm->total_iterate_time))
- ;
- else if (unformat (input, "print %f", &tm->time_per_status_update))
- ;
-
- else
- {
- error = clib_error_create ("unknown input `%U'\n",
- format_unformat_error, input);
- goto done;
- }
- }
-
- if (!tm->seed)
- tm->seed = random_default_seed ();
-
- clib_time_init (&tm->time);
-
- if (tm->synthetic_time)
- {
- w->min_sched_time = tm->time.seconds_per_clock;
- w->max_sched_time = w->min_sched_time * 256;
- timing_wheel_init (w, 0, tm->time.clocks_per_second);
- }
- else
- {
- timing_wheel_init (w, clib_cpu_time_now (), tm->time.clocks_per_second);
- }
-
- clib_warning ("iter %wd, events %d, seed %u, %U",
- tm->n_iter, tm->n_events, tm->seed,
- format_timing_wheel, &tm->timing_wheel, /* verbose */ 0);
-
- /* Make some events. */
- vec_resize (tm->events, tm->n_events);
- for (i = 0; i < vec_len (tm->events); i++)
- set_event (tm, i);
-
- {
- u32 *expired = 0;
- f64 ave_error = 0;
- f64 rms_error = 0;
- f64 max_error = 0, min_error = 1e30;
- u32 *error_hist = 0;
- uword n_expired = 0;
- uword *expired_bitmap[2] = { 0 };
- uword n_events_in_wheel = vec_len (tm->events);
-
- vec_resize (expired, 32);
- vec_resize (error_hist, 1024);
-
- tm->time_iterate_start = clib_time_now (&tm->time);
- tm->time_next_status_update =
- tm->time_iterate_start + tm->time_per_status_update;
-
- if (tm->total_iterate_time != 0)
- tm->n_iter = ~0;
-
- for (iter = 0; iter < tm->n_iter || n_events_in_wheel > 0; iter++)
- {
- u64 cpu_time, min_next_time[2];
-
- if (tm->synthetic_time)
- cpu_time = iter << w->log2_clocks_per_bin;
- else
- cpu_time = clib_cpu_time_now ();
-
- _vec_len (expired) = 0;
- expired =
- timing_wheel_advance (w, cpu_time, expired, &min_next_time[0]);
- timing_wheel_validate (w);
-
- /* Update bitmap of expired events. */
- if (w->validate)
- {
- for (i = 0; i < vec_len (tm->events); i++)
- {
- uword is_expired;
-
- is_expired =
- (cpu_time >> w->log2_clocks_per_bin) >=
- (tm->events[i] >> w->log2_clocks_per_bin);
- expired_bitmap[0] =
- clib_bitmap_set (expired_bitmap[0], i, is_expired);
-
- /* Validate min next time. */
- if (is_expired)
- ASSERT (min_next_time[0] > tm->events[i]);
- else
- ASSERT (min_next_time[0] <= tm->events[i]);
- }
- }
-
- n_expired += vec_len (expired);
- for (i = 0; i < vec_len (expired); i++)
- {
- word j, idt;
- i64 dt_cpu;
- f64 fdt_cpu;
-
- j = expired[i];
- expired_bitmap[1] = clib_bitmap_ori (expired_bitmap[1], j);
-
- dt_cpu = cpu_time - tm->events[j];
-
- /* Event must be scheduled in correct bin. */
- if (tm->synthetic_time)
- ASSERT (dt_cpu >= 0 && dt_cpu <= (1 << w->log2_clocks_per_bin));
-
- fdt_cpu = dt_cpu * tm->time.seconds_per_clock;
-
- ave_error += fdt_cpu;
- rms_error += fdt_cpu * fdt_cpu;
-
- if (fdt_cpu > max_error)
- max_error = fdt_cpu;
- if (fdt_cpu < min_error)
- min_error = fdt_cpu;
-
- idt =
- (cpu_time >> w->log2_clocks_per_bin) -
- (tm->events[j] >> w->log2_clocks_per_bin);
- idt = zvec_signed_to_unsigned (idt);
- vec_validate (error_hist, idt);
- error_hist[idt] += 1;
- }
-
- if (w->validate)
- for (i = 0; i < vec_len (tm->events); i++)
- {
- int is_expired = clib_bitmap_get (expired_bitmap[0], i);
- int is_expired_w = clib_bitmap_get (expired_bitmap[1], i);
- ASSERT (is_expired == is_expired_w);
- }
-
- min_next_time[1] = ~0;
- for (i = 0; i < vec_len (tm->events); i++)
- {
- if (!clib_bitmap_get (expired_bitmap[1], i))
- min_next_time[1] = clib_min (min_next_time[1], tm->events[i]);
- }
- if (min_next_time[0] != min_next_time[1])
- clib_error ("min next time wrong 0x%Lx != 0x%Lx", min_next_time[0],
- min_next_time[1]);
-
- if (tm->time_per_status_update != 0
- && clib_time_now (&tm->time) >= tm->time_next_status_update)
- {
- f64 ave = 0, rms = 0;
-
- tm->time_next_status_update += tm->time_per_status_update;
- if (n_expired > 0)
- {
- ave = ave_error / n_expired;
- rms = SQRT (rms_error / n_expired - ave * ave);
- }
-
- clib_warning
- ("%12wd iter done %10wd expired; ave. error %.4e +- %.4e, range %.4e %.4e",
- iter, n_expired, ave, rms, min_error, max_error);
- }
-
- if (tm->total_iterate_time != 0
- && (clib_time_now (&tm->time) - tm->time_iterate_start
- >= tm->total_iterate_time))
- tm->n_iter = iter;
-
- /* Add new events to wheel to replace expired ones. */
- n_events_in_wheel -= vec_len (expired);
- if (iter < tm->n_iter)
- {
- for (i = 0; i < vec_len (expired); i++)
- {
- uword j = expired[i];
- set_event (tm, j);
- expired_bitmap[1] =
- clib_bitmap_andnoti (expired_bitmap[1], j);
- }
- n_events_in_wheel += vec_len (expired);
- }
- }
-
- ave_error /= n_expired;
- rms_error = SQRT (rms_error / n_expired - ave_error * ave_error);
-
- clib_warning
- ("%wd iter done %wd expired; ave. error %.4e +- %.4e, range %.4e %.4e",
- 1 + iter, n_expired, ave_error, rms_error, min_error, max_error);
-
- {
- test_timing_wheel_tmp_t *fs, *f;
- f64 total_fraction;
-
- fs = 0;
- for (i = 0; i < vec_len (error_hist); i++)
- {
- if (error_hist[i] == 0)
- continue;
- vec_add2 (fs, f, 1);
- f->dt =
- (((i64) zvec_unsigned_to_signed (i) << w->log2_clocks_per_bin) *
- tm->time.seconds_per_clock);
- f->fraction = (f64) error_hist[i] / (f64) n_expired;
- f->count = error_hist[i];
- }
-
- vec_sort_with_function (fs, test_timing_wheel_tmp_cmp);
-
- total_fraction = 0;
- vec_foreach (f, fs)
- {
- total_fraction += f->fraction;
- if (f == fs)
- fformat (stdout, "%=12s %=16s %=16s %s\n", "Error max", "Fraction",
- "Total", "Count");
- fformat (stdout, "%12.4e %16.4f%% %16.4f%% %Ld\n", f->dt,
- f->fraction * 100, total_fraction * 100, f->count);
- }
- }
-
- clib_warning ("%U", format_timing_wheel, w, /* verbose */ 1);
- }
-
-done:
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- clib_error_t *error;
-
- clib_mem_init (0, 64ULL << 20);
-
- unformat_init_command_line (&i, argv);
- error = test_timing_wheel_main (&i);
- unformat_free (&i);
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- else
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_vhash.c b/src/vppinfra/test_vhash.c
deleted file mode 100644
index 594d46c38df..00000000000
--- a/src/vppinfra/test_vhash.c
+++ /dev/null
@@ -1,759 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2010 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#if 0
-#ifdef __OPTIMIZE__
-#undef CLIB_DEBUG
-#endif
-#endif
-
-#include <vppinfra/bitmap.h>
-#include <vppinfra/error.h>
-#include <vppinfra/os.h>
-#include <vppinfra/random.h>
-#include <vppinfra/time.h>
-#include <vppinfra/vhash.h>
-
-#ifdef CLIB_HAVE_VEC128
-
-typedef struct
-{
- u32 n_iter;
- u32 seed;
- u32 verbose;
- u32 n_keys;
- u32 log2_size;
- u32 n_key_u32;
-
- u32 n_vectors_div_4;
- u32 n_vectors_mod_4;
-
- u32 *keys;
- u32 *results;
-
- u32 *vhash_get_key_indices;
- u32 *vhash_get_results;
-
- u32 *vhash_key_indices;
- u32 *vhash_results;
-
- vhash_t vhash;
-
- uword **key_hash;
-
- struct
- {
- u64 n_clocks;
- u64 n_vectors;
- u64 n_calls;
- } get_stats, set_stats, unset_stats;
-} test_vhash_main_t;
-
-always_inline u32
-test_vhash_key_gather (void *_tm, u32 vi, u32 wi, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- ASSERT (n_key_u32s == tm->n_key_u32);
- ASSERT (wi < n_key_u32s);
- vi = vec_elt (tm->vhash_key_indices, vi);
- return vec_elt (tm->keys, vi * n_key_u32s + wi);
-}
-
-always_inline u32x4
-test_vhash_4key_gather (void *_tm, u32 vi, u32 wi, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- u32 *p;
- u32x4_union_t x;
-
- ASSERT (n_key_u32s == tm->n_key_u32);
- ASSERT (wi < n_key_u32s);
-
- p = vec_elt_at_index (tm->vhash_key_indices, vi + 0);
- x.as_u32[0] = tm->keys[p[0] * n_key_u32s + wi];
- x.as_u32[1] = tm->keys[p[1] * n_key_u32s + wi];
- x.as_u32[2] = tm->keys[p[2] * n_key_u32s + wi];
- x.as_u32[3] = tm->keys[p[3] * n_key_u32s + wi];
- return x.as_u32x4;
-}
-
-always_inline u32
-test_vhash_get_result (void *_tm,
- u32 vector_index, u32 result_index, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- u32 *p = vec_elt_at_index (tm->vhash_results, vector_index);
- p[0] = result_index;
- return result_index;
-}
-
-always_inline u32x4
-test_vhash_get_4result (void *_tm,
- u32 vector_index, u32x4 results, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- u32 *p = vec_elt_at_index (tm->vhash_results, vector_index);
- *(u32x4 *) p = results;
- return results;
-}
-
-always_inline u32
-test_vhash_set_result (void *_tm,
- u32 vector_index, u32 old_result, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- u32 *p = vec_elt_at_index (tm->vhash_results, vector_index);
- u32 new_result = p[0];
- p[0] = old_result;
- return new_result;
-}
-
-always_inline u32
-test_vhash_unset_result (void *_tm, u32 i, u32 old_result, u32 n_key_u32s)
-{
- test_vhash_main_t *tm = _tm;
- u32 *p = vec_elt_at_index (tm->vhash_results, i);
- p[0] = old_result;
- return 0;
-}
-
-#define _(N_KEY_U32) \
- always_inline u32 \
- test_vhash_key_gather_##N_KEY_U32 (void * _tm, u32 vi, u32 i) \
- { return test_vhash_key_gather (_tm, vi, i, N_KEY_U32); } \
- \
- always_inline u32x4 \
- test_vhash_key_gather_4_##N_KEY_U32 (void * _tm, u32 vi, u32 i) \
- { return test_vhash_4key_gather (_tm, vi, i, N_KEY_U32); } \
- \
- clib_pipeline_stage \
- (test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_gather_4key_stage \
- (&tm->vhash, \
- /* vector_index */ i, \
- test_vhash_key_gather_4_##N_KEY_U32, \
- tm, \
- N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_gather_key_stage \
- (&tm->vhash, \
- /* vector_index */ tm->n_vectors_div_4, \
- /* n_vectors */ tm->n_vectors_mod_4, \
- test_vhash_key_gather_##N_KEY_U32, \
- tm, \
- N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage \
- (test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_finalize_stage (&tm->vhash, i, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_finalize_stage (&tm->vhash, tm->n_vectors_div_4, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage \
- (test_vhash_get_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_get_4_stage (&tm->vhash, \
- /* vector_index */ i, \
- test_vhash_get_4result, \
- tm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_get_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_get_stage (&tm->vhash, \
- /* vector_index */ tm->n_vectors_div_4, \
- /* n_vectors */ tm->n_vectors_mod_4, \
- test_vhash_get_result, \
- tm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage \
- (test_vhash_set_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_set_stage (&tm->vhash, \
- /* vector_index */ i, \
- /* n_vectors */ VECTOR_WORD_TYPE_LEN (u32), \
- test_vhash_set_result, \
- tm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_set_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_set_stage (&tm->vhash, \
- /* vector_index */ tm->n_vectors_div_4, \
- /* n_vectors */ tm->n_vectors_mod_4, \
- test_vhash_set_result, \
- tm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage \
- (test_vhash_unset_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_unset_stage (&tm->vhash, \
- /* vector_index */ i, \
- /* n_vectors */ VECTOR_WORD_TYPE_LEN (u32), \
- test_vhash_unset_result, \
- tm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_unset_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_unset_stage (&tm->vhash, \
- /* vector_index */ tm->n_vectors_div_4, \
- /* n_vectors */ tm->n_vectors_mod_4, \
- test_vhash_unset_result, \
- tm, N_KEY_U32); \
- })
-
-_(1);
-_(2);
-_(3);
-_(4);
-_(5);
-_(6);
-
-#undef _
-
-#define _(N_KEY_U32) \
- clib_pipeline_stage \
- (test_vhash_hash_mix_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_mix_stage (&tm->vhash, i, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (test_vhash_hash_mix_mod_stage_##N_KEY_U32, \
- test_vhash_main_t *, tm, i, \
- { \
- vhash_mix_stage (&tm->vhash, tm->n_vectors_div_4, N_KEY_U32); \
- })
-
-_(4);
-_(5);
-_(6);
-
-#undef _
-
-typedef enum
-{
- GET, SET, UNSET,
-} test_vhash_op_t;
-
-static void
-test_vhash_op (test_vhash_main_t * tm,
- u32 * key_indices,
- u32 * results, uword n_keys, test_vhash_op_t op)
-{
- vhash_validate_sizes (&tm->vhash, tm->n_key_u32, n_keys);
-
- tm->vhash_results = results;
- tm->vhash_key_indices = key_indices;
- tm->n_vectors_div_4 = n_keys / 4;
- tm->n_vectors_mod_4 = n_keys % 4;
-
- if (tm->n_vectors_div_4 > 0)
- {
- switch (tm->n_key_u32)
- {
- default:
- ASSERT (0);
- break;
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_3_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_get_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_3_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_set_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_3_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_unset_stage_##N_KEY_U32); \
- break;
-
- _(1);
- _(2);
- _(3);
-
-#undef _
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_4_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_mix_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_get_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_4_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_mix_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_set_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_4_stage \
- (tm->n_vectors_div_4, \
- tm, \
- test_vhash_gather_keys_stage_##N_KEY_U32, \
- test_vhash_hash_mix_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_stage_##N_KEY_U32, \
- test_vhash_unset_stage_##N_KEY_U32); \
- break;
-
- _(4);
- _(5);
- _(6);
-
-#undef _
- }
- }
-
-
- if (tm->n_vectors_mod_4 > 0)
- {
- switch (tm->n_key_u32)
- {
- default:
- ASSERT (0);
- break;
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_3_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_get_mod_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_3_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_set_mod_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_3_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_unset_mod_stage_##N_KEY_U32); \
- break;
-
- _(1);
- _(2);
- _(3);
-
-#undef _
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_4_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_mix_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_get_mod_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_4_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_mix_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_set_mod_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_4_stage \
- (1, \
- tm, \
- test_vhash_gather_keys_mod_stage_##N_KEY_U32, \
- test_vhash_hash_mix_mod_stage_##N_KEY_U32, \
- test_vhash_hash_finalize_mod_stage_##N_KEY_U32, \
- test_vhash_unset_mod_stage_##N_KEY_U32); \
- break;
-
- _(4);
- _(5);
- _(6);
-
-#undef _
- }
- }
-}
-
-int
-test_vhash_main (unformat_input_t * input)
-{
- clib_error_t *error = 0;
- test_vhash_main_t _tm, *tm = &_tm;
- vhash_t *vh = &tm->vhash;
- uword i, j;
-
- clib_memset (tm, 0, sizeof (tm[0]));
- tm->n_iter = 100;
- tm->seed = 1;
- tm->n_keys = 1;
- tm->n_key_u32 = 1;
- tm->log2_size = 8;
- tm->verbose = 0;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "iter %d", &tm->n_iter))
- ;
- else if (unformat (input, "seed %d", &tm->seed))
- ;
- else if (unformat (input, "n-keys %d", &tm->n_keys))
- ;
- else if (unformat (input, "log2-size %d", &tm->log2_size))
- ;
- else if (unformat (input, "key-words %d", &tm->n_key_u32))
- ;
- else if (unformat (input, "verbose %=", &tm->verbose, 1))
- ;
- else
- {
- error = clib_error_create ("unknown input `%U'\n",
- format_unformat_error, input);
- goto done;
- }
- }
-
- if (tm->seed == 0)
- tm->seed = random_default_seed ();
-
- clib_warning ("iter %d seed %d n-keys %d log2-size %d key-words %d",
- tm->n_iter, tm->seed, tm->n_keys, tm->log2_size,
- tm->n_key_u32);
-
- {
- u32 seeds[3];
- seeds[0] = seeds[1] = seeds[2] = 0xdeadbeef;
- vhash_init (vh, tm->log2_size, tm->n_key_u32, seeds);
- }
-
- /* Choose unique keys. */
- vec_resize (tm->keys, tm->n_keys * tm->n_key_u32);
- vec_resize (tm->key_hash, tm->n_key_u32);
- for (i = j = 0; i < vec_len (tm->keys); i++, j++)
- {
- j = j == tm->n_key_u32 ? 0 : j;
- do
- {
- tm->keys[i] = random_u32 (&tm->seed);
- }
- while (hash_get (tm->key_hash[j], tm->keys[i]));
- hash_set (tm->key_hash[j], tm->keys[i], 0);
- }
-
- vec_resize (tm->results, tm->n_keys);
- for (i = 0; i < vec_len (tm->results); i++)
- {
- do
- {
- tm->results[i] = random_u32 (&tm->seed);
- }
- while (tm->results[i] == ~0);
- }
-
- vec_resize_aligned (tm->vhash_get_results, tm->n_keys,
- CLIB_CACHE_LINE_BYTES);
- vec_clone (tm->vhash_get_key_indices, tm->results);
- for (i = 0; i < vec_len (tm->vhash_get_key_indices); i++)
- tm->vhash_get_key_indices[i] = i;
-
- {
- uword *is_set_bitmap = 0;
- uword *to_set_bitmap = 0;
- uword *to_unset_bitmap = 0;
- u32 *to_set = 0, *to_unset = 0;
- u32 *to_set_results = 0, *to_unset_results = 0;
- u64 t[2];
-
- for (i = 0; i < tm->n_iter; i++)
- {
- vec_reset_length (to_set);
- vec_reset_length (to_unset);
- vec_reset_length (to_set_results);
- vec_reset_length (to_unset_results);
-
- do
- {
- to_set_bitmap = clib_bitmap_random (to_set_bitmap,
- tm->n_keys, &tm->seed);
- }
- while (clib_bitmap_is_zero (to_set_bitmap));
- to_unset_bitmap = clib_bitmap_dup_and (to_set_bitmap, is_set_bitmap);
- to_set_bitmap = clib_bitmap_andnot (to_set_bitmap, to_unset_bitmap);
-
- /* *INDENT-OFF* */
- clib_bitmap_foreach (j, to_set_bitmap, ({
- vec_add1 (to_set, j);
- vec_add1 (to_set_results, tm->results[j]);
- }));
- /* *INDENT-ON* */
- /* *INDENT-OFF* */
- clib_bitmap_foreach (j, to_unset_bitmap, ({
- vec_add1 (to_unset, j);
- vec_add1 (to_unset_results, 0xdeadbeef);
- }));
- /* *INDENT-ON* */
-
- if (vec_len (to_set) > 0)
- {
- t[0] = clib_cpu_time_now ();
- test_vhash_op (tm, to_set, to_set_results, vec_len (to_set), SET);
- t[1] = clib_cpu_time_now ();
- tm->set_stats.n_clocks += t[1] - t[0];
- tm->set_stats.n_vectors += vec_len (to_set);
- tm->set_stats.n_calls += 1;
- is_set_bitmap = clib_bitmap_or (is_set_bitmap, to_set_bitmap);
- }
-
- t[0] = clib_cpu_time_now ();
- test_vhash_op (tm, tm->vhash_get_key_indices,
- tm->vhash_get_results,
- vec_len (tm->vhash_get_key_indices), GET);
- t[1] = clib_cpu_time_now ();
- tm->get_stats.n_clocks += t[1] - t[0];
- tm->get_stats.n_vectors += vec_len (tm->vhash_get_key_indices);
- tm->get_stats.n_calls += 1;
-
- for (j = 0; j < vec_len (tm->vhash_get_results); j++)
- {
- u32 r0 = tm->vhash_get_results[j];
- u32 r1 = tm->results[j];
- if (clib_bitmap_get (is_set_bitmap, j))
- {
- if (r0 != r1)
- os_panic ();
- }
- else
- {
- if (r0 != ~0)
- os_panic ();
- }
- }
-
- if (vh->n_elts != clib_bitmap_count_set_bits (is_set_bitmap))
- os_panic ();
-
- if (vec_len (to_unset) > 0)
- {
- t[0] = clib_cpu_time_now ();
- test_vhash_op (tm, to_unset, to_unset_results,
- vec_len (to_unset), UNSET);
- t[1] = clib_cpu_time_now ();
- tm->unset_stats.n_clocks += t[1] - t[0];
- tm->unset_stats.n_vectors += vec_len (to_unset);
- tm->unset_stats.n_calls += 1;
- is_set_bitmap =
- clib_bitmap_andnot (is_set_bitmap, to_unset_bitmap);
- }
-
- t[0] = clib_cpu_time_now ();
- test_vhash_op (tm, tm->vhash_get_key_indices,
- tm->vhash_get_results,
- vec_len (tm->vhash_get_key_indices), GET);
- t[1] = clib_cpu_time_now ();
- tm->get_stats.n_clocks += t[1] - t[0];
- tm->get_stats.n_vectors += vec_len (tm->vhash_get_key_indices);
- tm->get_stats.n_calls += 1;
-
- for (j = 0; j < vec_len (tm->vhash_get_results); j++)
- {
- u32 r0 = tm->vhash_get_results[j];
- u32 r1 = tm->results[j];
- if (clib_bitmap_get (is_set_bitmap, j))
- {
- if (r0 != r1)
- os_panic ();
- }
- else
- {
- if (r0 != ~0)
- os_panic ();
- }
- }
-
- if (vh->n_elts != clib_bitmap_count_set_bits (is_set_bitmap))
- os_panic ();
- }
-
- vhash_resize (vh, tm->log2_size + 1);
-
- test_vhash_op (tm, tm->vhash_get_key_indices,
- tm->vhash_get_results,
- vec_len (tm->vhash_get_key_indices), GET);
-
- for (j = 0; j < vec_len (tm->vhash_get_results); j++)
- {
- u32 r0 = tm->vhash_get_results[j];
- u32 r1 = tm->results[j];
- if (clib_bitmap_get (is_set_bitmap, j))
- {
- if (r0 != r1)
- os_panic ();
- }
- else
- {
- if (r0 != ~0)
- os_panic ();
- }
- }
-
- if (vh->n_elts != clib_bitmap_count_set_bits (is_set_bitmap))
- os_panic ();
- }
-
- {
- clib_time_t ct;
-
- clib_time_init (&ct);
-
- clib_warning ("%.4e clocks/get %.4e gets/call %.4e gets/sec",
- (f64) tm->get_stats.n_clocks /
- (f64) tm->get_stats.n_vectors,
- (f64) tm->get_stats.n_vectors / (f64) tm->get_stats.n_calls,
- (f64) tm->get_stats.n_vectors /
- (f64) (tm->get_stats.n_clocks * ct.seconds_per_clock));
- if (tm->set_stats.n_calls > 0)
- clib_warning ("%.4e clocks/set %.4e sets/call %.4e sets/sec",
- (f64) tm->set_stats.n_clocks /
- (f64) tm->set_stats.n_vectors,
- (f64) tm->set_stats.n_vectors /
- (f64) tm->set_stats.n_calls,
- (f64) tm->set_stats.n_vectors /
- (f64) (tm->set_stats.n_clocks * ct.seconds_per_clock));
- if (tm->unset_stats.n_calls > 0)
- clib_warning ("%.4e clocks/unset %.4e unsets/call %.4e unsets/sec",
- (f64) tm->unset_stats.n_clocks /
- (f64) tm->unset_stats.n_vectors,
- (f64) tm->unset_stats.n_vectors /
- (f64) tm->unset_stats.n_calls,
- (f64) tm->unset_stats.n_vectors /
- (f64) (tm->unset_stats.n_clocks * ct.seconds_per_clock));
- }
-
-done:
- if (error)
- clib_error_report (error);
- return 0;
-}
-
-#endif /* CLIB_HAVE_VEC128 */
-
-#ifndef CLIB_HAVE_VEC128
-int
-test_vhash_main (unformat_input_t * input)
-{
- clib_error ("compiled without vector support");
- return 0;
-}
-#endif
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- int r;
-
- clib_mem_init (0, 64ULL << 20);
-
- unformat_init_command_line (&i, argv);
- r = test_vhash_main (&i);
- unformat_free (&i);
- return r;
-}
-#endif
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/test_zvec.c b/src/vppinfra/test_zvec.c
deleted file mode 100644
index 7d777fabf83..00000000000
--- a/src/vppinfra/test_zvec.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2005 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include <vppinfra/zvec.h>
-#include <vppinfra/format.h>
-#include <vppinfra/random.h>
-
-static int verbose;
-#define if_verbose(format,args...) \
- if (verbose) { clib_warning(format, ## args); }
-
-int
-test_zvec_main (unformat_input_t * input)
-{
- uword n_iterations;
- uword i;
- u32 seed;
-
- n_iterations = 1024;
- seed = 0;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (0 == unformat (input, "iter %d", &n_iterations)
- && 0 == unformat (input, "seed %d", &seed))
- clib_error ("unknown input `%U'", format_unformat_error, input);
- }
-
- if_verbose ("%d iterations, seed %d\n", n_iterations, seed);
-
- for (i = 0; i < n_iterations; i++)
- {
- uword coding, data, d[2], limit, n_zdata_bits[2];
-
- if (seed)
- coding = random_u32 (&seed);
- else
- coding = i;
-
- limit = coding - 1;
- if (limit > (1 << 16))
- limit = 1 << 16;
- for (data = 0; data <= limit; data++)
- {
- d[0] = zvec_encode (coding, data, &n_zdata_bits[0]);
-
- if (coding != 0)
- ASSERT ((d[0] >> n_zdata_bits[0]) == 0);
-
- d[1] = zvec_decode (coding, d[0], &n_zdata_bits[1]);
- ASSERT (data == d[1]);
-
- ASSERT (n_zdata_bits[0] == n_zdata_bits[1]);
- }
- }
-
- return 0;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- int ret;
-
- clib_mem_init (0, 64ULL << 20);
-
- verbose = (argc > 1);
- unformat_init_command_line (&i, argv);
- ret = test_zvec_main (&i);
- unformat_free (&i);
-
- return ret;
-}
-#endif /* CLIB_UNIX */
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/unix-kelog.c b/src/vppinfra/unix-kelog.c
deleted file mode 100644
index 88428ee8f2e..00000000000
--- a/src/vppinfra/unix-kelog.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- Copyright (c) 2010 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.
-*/
-
-#include <vppinfra/error.h>
-#include <vppinfra/unix.h>
-#include <vppinfra/elog.h>
-#include <vppinfra/format.h>
-#include <vppinfra/os.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <time.h>
-
-typedef enum
-{
- RUNNING = 0,
- WAKEUP,
-} sched_event_type_t;
-
-typedef struct
-{
- u32 cpu;
- u8 *task;
- u32 pid;
- f64 timestamp;
- sched_event_type_t type;
-} sched_event_t;
-
-void
-kelog_init (elog_main_t * em, char *kernel_tracer, u32 n_events)
-{
- int enable_fd, current_tracer_fd, data_fd;
- int len;
- struct timespec ts, ts2;
- char *trace_enable = "/debug/tracing/tracing_enabled";
- char *current_tracer = "/debug/tracing/current_tracer";
- char *trace_data = "/debug/tracing/trace";
- f64 realtime, monotonic;
- f64 freq, secs_per_clock;
-
- ASSERT (kernel_tracer);
-
- /*$$$$ fixme */
- n_events = 1 << 18;
-
- /* init first so we won't hurt ourselves if we bail */
- elog_init (em, n_events);
-
- enable_fd = open (trace_enable, O_RDWR);
- if (enable_fd < 0)
- {
- clib_warning ("Couldn't open %s", trace_enable);
- return;
- }
- /* disable kernel tracing */
- if (write (enable_fd, "0\n", 2) != 2)
- {
- clib_unix_warning ("disable tracing");
- close (enable_fd);
- return;
- }
-
- /*
- * open + clear the data buffer.
- * see .../linux/kernel/trace/trace.c:tracing_open()
- */
- data_fd = open (trace_data, O_RDWR | O_TRUNC);
- if (data_fd < 0)
- {
- clib_warning ("Couldn't open+clear %s", trace_data);
- return;
- }
- close (data_fd);
-
- /* configure tracing */
- current_tracer_fd = open (current_tracer, O_RDWR);
-
- if (current_tracer_fd < 0)
- {
- clib_warning ("Couldn't open %s", current_tracer);
- close (enable_fd);
- return;
- }
-
- len = strlen (kernel_tracer);
-
- if (write (current_tracer_fd, kernel_tracer, len) != len)
- {
- clib_unix_warning ("configure trace");
- close (current_tracer_fd);
- close (enable_fd);
- return;
- }
-
- close (current_tracer_fd);
-
- /*
- * The kernel event log uses CLOCK_MONOTONIC timestamps,
- * not CLOCK_REALTIME timestamps. These differ by a constant
- * but the constant is not available in user mode.
- * This estimate will be off by one syscall round-trip.
- */
- clib_time_init (&em->cpu_timer);
- em->init_time.cpu = em->cpu_timer.init_cpu_time;
- syscall (SYS_clock_gettime, CLOCK_MONOTONIC, &ts);
-
- /* enable kernel tracing */
- if (write (enable_fd, "1\n", 2) != 2)
- {
- clib_unix_warning ("enable tracing");
- close (enable_fd);
- return;
- }
-
- close (enable_fd);
-}
-
-
-u8 *
-format_sched_event (u8 * s, va_list * va)
-{
- sched_event_t *e = va_arg (*va, sched_event_t *);
-
- s = format (s, "cpu %d task %10s type %s timestamp %12.6f\n",
- e->cpu, e->task, e->type ? "WAKEUP " : "RUNNING", e->timestamp);
-
- return s;
-}
-
-sched_event_t *
-parse_sched_switch_trace (u8 * tdata, u32 * index)
-{
- u8 *cp = tdata + *index;
- u8 *limit = tdata + vec_len (tdata);
- int colons;
- static sched_event_t event;
- sched_event_t *e = &event;
- static u8 *task_name;
- u32 secs, usecs;
- int i;
-
-again:
- /* eat leading w/s */
- while (cp < limit && (*cp == ' ' && *cp == '\t'))
- cp++;
- if (cp == limit)
- return 0;
-
- /* header line */
- if (*cp == '#')
- {
- while (cp < limit && (*cp != '\n'))
- cp++;
- if (*cp == '\n')
- {
- cp++;
- goto again;
- }
- clib_warning ("bugger 0");
- return 0;
- }
-
- while (cp < limit && *cp != ']')
- cp++;
-
- if (*cp == 0)
- return 0;
-
- if (*cp != ']')
- {
- clib_warning ("bugger 0.1");
- return 0;
- }
-
- cp++;
- while (cp < limit && (*cp == ' ' && *cp == '\t'))
- cp++;
- if (cp == limit)
- {
- clib_warning ("bugger 0.2");
- return 0;
- }
-
- secs = atoi (cp);
-
- while (cp < limit && (*cp != '.'))
- cp++;
-
- if (cp == limit)
- {
- clib_warning ("bugger 0.3");
- return 0;
- }
-
- cp++;
-
- usecs = atoi (cp);
-
- e->timestamp = ((f64) secs) + ((f64) usecs) * 1e-6;
-
- /* eat up to third colon */
- for (i = 0; i < 3; i++)
- {
- while (cp < limit && *cp != ':')
- cp++;
- cp++;
- }
- --cp;
- if (*cp != ':')
- {
- clib_warning ("bugger 1");
- return 0;
- }
- /* aim at '>' (switch-to) / '+' (wakeup) */
- cp += 5;
- if (cp >= limit)
- {
- clib_warning ("bugger 2");
- return 0;
- }
- if (*cp == '>')
- e->type = RUNNING;
- else if (*cp == '+')
- e->type = WAKEUP;
- else
- {
- clib_warning ("bugger 3");
- return 0;
- }
-
- cp += 3;
- if (cp >= limit)
- {
- clib_warning ("bugger 4");
- return 0;
- }
-
- e->cpu = atoi (cp);
- cp += 4;
-
- if (cp >= limit)
- {
- clib_warning ("bugger 4");
- return 0;
- }
- while (cp < limit && (*cp == ' ' || *cp == '\t'))
- cp++;
-
- e->pid = atoi (cp);
-
- for (i = 0; i < 2; i++)
- {
- while (cp < limit && *cp != ':')
- cp++;
- cp++;
- }
- --cp;
- if (*cp != ':')
- {
- clib_warning ("bugger 5");
- return 0;
- }
-
- cp += 3;
- if (cp >= limit)
- {
- clib_warning ("bugger 6");
- return 0;
- }
- while (cp < limit && (*cp != ' ' && *cp != '\n'))
- {
- vec_add1 (task_name, *cp);
- cp++;
- }
- vec_add1 (task_name, 0);
- /* _vec_len() = 0 in caller */
- e->task = task_name;
-
- if (cp < limit)
- cp++;
-
- *index = cp - tdata;
- return e;
-}
-
-static u32
-elog_id_for_pid (elog_main_t * em, u8 * name, u32 pid)
-{
- uword *p, r;
- mhash_t *h = &em->string_table_hash;
-
- if (!em->string_table_hash.hash)
- mhash_init (h, sizeof (uword), sizeof (pid));
-
- p = mhash_get (h, &pid);
- if (p)
- return p[0];
- r = elog_string (em, "%s(%d)", name, pid);
- mhash_set (h, &pid, r, /* old_value */ 0);
- return r;
-}
-
-void
-kelog_collect_sched_switch_trace (elog_main_t * em)
-{
- int enable_fd, data_fd;
- char *trace_enable = "/debug/tracing/tracing_enabled";
- char *trace_data = "/debug/tracing/trace";
- u8 *data = 0;
- u8 *dp;
- int bytes, total_bytes;
- u32 pos;
- sched_event_t *evt;
- u64 nsec_to_add;
- u32 index;
- f64 clocks_per_sec;
-
- enable_fd = open (trace_enable, O_RDWR);
- if (enable_fd < 0)
- {
- clib_warning ("Couldn't open %s", trace_enable);
- return;
- }
- /* disable kernel tracing */
- if (write (enable_fd, "0\n", 2) != 2)
- {
- clib_unix_warning ("disable tracing");
- close (enable_fd);
- return;
- }
- close (enable_fd);
-
- /* Read the trace data */
- data_fd = open (trace_data, O_RDWR);
- if (data_fd < 0)
- {
- clib_warning ("Couldn't open %s", trace_data);
- return;
- }
-
- /*
- * Extract trace into a vector. Note that seq_printf() [kernel]
- * is not guaranteed to produce 4096 bytes at a time.
- */
- vec_validate (data, 4095);
- total_bytes = 0;
- pos = 0;
- while (1)
- {
- bytes = read (data_fd, data + pos, 4096);
- if (bytes <= 0)
- break;
-
- total_bytes += bytes;
- _vec_len (data) = total_bytes;
-
- pos = vec_len (data);
- vec_validate (data, vec_len (data) + 4095);
- }
- vec_add1 (data, 0);
-
- /* Synthesize events */
- em->is_enabled = 1;
-
- index = 0;
- while ((evt = parse_sched_switch_trace (data, &index)))
- {
- u64 fake_cpu_clock;
-
- fake_cpu_clock = evt->timestamp * em->cpu_timer.clocks_per_second;
- {
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "%d: %s %s",.format_args = "i4T4t4",.n_enum_strings =
- 2,.enum_strings =
- {
- "running", "wakeup",}
- ,};
- struct
- {
- u32 cpu, string_table_offset, which;
- } *ed;
-
- ed = elog_event_data_not_inline (em, &__ELOG_TYPE_VAR (e),
- &em->default_track, fake_cpu_clock);
- ed->cpu = evt->cpu;
- ed->string_table_offset = elog_id_for_pid (em, evt->task, evt->pid);
- ed->which = evt->type;
- }
- _vec_len (evt->task) = 0;
- }
- em->is_enabled = 0;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/vhash.c b/src/vppinfra/vhash.c
deleted file mode 100644
index 9120f502c91..00000000000
--- a/src/vppinfra/vhash.c
+++ /dev/null
@@ -1,772 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2010 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include <vppinfra/vhash.h>
-
-#ifdef CLIB_HAVE_VEC128
-
-/* Overflow search buckets have an extra u32x4 for saving key_hash data.
- This makes it easier to refill main search bucket from overflow vector. */
-typedef struct
-{
- /* 4 results for this bucket. */
- u32x4_union_t result;
-
- /* 4 hash codes for this bucket. These are used to refill main
- search buckets from overflow buckets when space becomes available. */
- u32x4_union_t key_hash;
-
- /* n_key_u32s u32x4s of key data follow. */
- u32x4_union_t key[0];
-} vhash_overflow_search_bucket_t;
-
-always_inline void
-set_overflow_result (vhash_overflow_search_bucket_t * b,
- u32 i, u32 result, u32 key_hash)
-{
- b->result.as_u32[i] = result;
- b->key_hash.as_u32[i] = key_hash;
-}
-
-always_inline void
-free_overflow_bucket (vhash_overflow_buckets_t * ob,
- vhash_overflow_search_bucket_t * b, u32 i)
-{
- u32 o = (u32x4_union_t *) b - ob->search_buckets;
- ASSERT (o < vec_len (ob->search_buckets));
- vec_add1 (ob->free_indices, 4 * o + i);
-}
-
-always_inline vhash_overflow_search_bucket_t *
-get_overflow_search_bucket (vhash_overflow_buckets_t * obs, u32 i,
- u32 n_key_u32s)
-{
- return ((vhash_overflow_search_bucket_t *)
- vec_elt_at_index (obs->search_buckets, i));
-}
-
-always_inline vhash_overflow_search_bucket_t *
-next_overflow_bucket (vhash_overflow_search_bucket_t * b, u32 n_key_u32s)
-{
- return (vhash_overflow_search_bucket_t *) & b->key[n_key_u32s];
-}
-
-#define foreach_vhash_overflow_bucket(b,ob,n_key_u32s) \
- for ((b) = (vhash_overflow_search_bucket_t *) ob->search_buckets; \
- (u32x4_union_t *) (b) < vec_end (ob->search_buckets); \
- b = next_overflow_bucket (b, n_key_u32s))
-
-u32
-vhash_get_overflow (vhash_t * h, u32 key_hash, u32 vi, u32 n_key_u32s)
-{
- vhash_overflow_buckets_t *ob = vhash_get_overflow_buckets (h, key_hash);
- vhash_overflow_search_bucket_t *b;
- u32 i, result = 0;
-
- foreach_vhash_overflow_bucket (b, ob, n_key_u32s)
- {
- u32x4 r = b->result.as_u32x4;
-
- for (i = 0; i < n_key_u32s; i++)
- r &= vhash_bucket_compare (h, &b->key[0], i, vi);
-
- result = vhash_merge_results (r);
- if (result)
- break;
- }
-
- return result;
-}
-
-u32
-vhash_set_overflow (vhash_t * h,
- u32 key_hash, u32 vi, u32 new_result, u32 n_key_u32s)
-{
- vhash_overflow_buckets_t *ob = vhash_get_overflow_buckets (h, key_hash);
- vhash_overflow_search_bucket_t *b;
- u32 i_set, i, old_result;
-
- foreach_vhash_overflow_bucket (b, ob, n_key_u32s)
- {
- u32x4 r;
-
- r = b->result.as_u32x4;
- for (i = 0; i < n_key_u32s; i++)
- r &= vhash_bucket_compare (h, &b->key[0], i, vi);
-
- old_result = vhash_merge_results (r);
- if (old_result)
- {
- i_set = vhash_non_empty_result_index (r);
- set_overflow_result (b, i_set, new_result, key_hash);
- return old_result;
- }
- }
-
- /* Check free list. */
- if (vec_len (ob->free_indices) == 0)
- {
- /* Out of free overflow buckets. Resize. */
- u32 j, *p;
- i = vec_len (ob->search_buckets);
- vec_resize_aligned (ob->search_buckets,
- sizeof (b[0]) / sizeof (u32x4) + n_key_u32s,
- CLIB_CACHE_LINE_BYTES);
- vec_add2 (ob->free_indices, p, 4);
- for (j = 0; j < 4; j++)
- p[j] = 4 * i + j;
- }
-
- i = vec_pop (ob->free_indices);
-
- i_set = i & 3;
- b = ((vhash_overflow_search_bucket_t *)
- vec_elt_at_index (ob->search_buckets, i / 4));
-
- /* Insert result. */
- set_overflow_result (b, i_set, new_result, key_hash);
-
- /* Insert key. */
- for (i = 0; i < n_key_u32s; i++)
- b->key[i].as_u32[i_set] = vhash_get_key_word (h, i, vi);
-
- ob->n_overflow++;
- h->n_elts++;
-
- return /* old result was invalid */ 0;
-}
-
-u32
-vhash_unset_overflow (vhash_t * h, u32 key_hash, u32 vi, u32 n_key_u32s)
-{
- vhash_overflow_buckets_t *ob = vhash_get_overflow_buckets (h, key_hash);
- vhash_overflow_search_bucket_t *b;
- u32 i_set, i, old_result;
-
- foreach_vhash_overflow_bucket (b, ob, n_key_u32s)
- {
- u32x4 r;
-
- r = b->result.as_u32x4;
- for (i = 0; i < n_key_u32s; i++)
- r &= vhash_bucket_compare (h, &b->key[0], i, vi);
-
- old_result = vhash_merge_results (r);
- if (old_result)
- {
- i_set = vhash_non_empty_result_index (r);
-
- /* Invalidate result and invert key hash so that this will
- never match since all keys in this overflow bucket have
- matching key hashs. */
- set_overflow_result (b, i_set, 0, ~key_hash);
-
- free_overflow_bucket (ob, b, i_set);
-
- ASSERT (ob->n_overflow > 0);
- ob->n_overflow--;
- h->n_elts--;
- return old_result;
- }
- }
-
- /* Could not find key. */
- return 0;
-}
-
-void
-vhash_unset_refill_from_overflow (vhash_t * h,
- vhash_search_bucket_t * sb,
- u32 key_hash, u32 n_key_u32s)
-{
- vhash_overflow_buckets_t *obs = vhash_get_overflow_buckets (h, key_hash);
- vhash_overflow_search_bucket_t *ob;
- u32 i, j, i_refill, bucket_mask = h->bucket_mask.as_u32[0];
-
- /* Find overflow element with matching key hash. */
- foreach_vhash_overflow_bucket (ob, obs, n_key_u32s)
- {
- for (i = 0; i < 4; i++)
- {
- if (!ob->result.as_u32[i])
- continue;
- if ((ob->key_hash.as_u32[i] & bucket_mask)
- != (key_hash & bucket_mask))
- continue;
-
- i_refill = vhash_empty_result_index (sb->result.as_u32x4);
- sb->result.as_u32[i_refill] = ob->result.as_u32[i];
- for (j = 0; j < n_key_u32s; j++)
- sb->key[j].as_u32[i_refill] = ob->key[j].as_u32[i];
- set_overflow_result (ob, i, 0, ~key_hash);
- free_overflow_bucket (obs, ob, i);
- return;
- }
- }
-}
-
-void
-vhash_init (vhash_t * h, u32 log2_n_keys, u32 n_key_u32, u32 * hash_seeds)
-{
- uword i, j, m;
- vhash_search_bucket_t *b;
-
- clib_memset (h, 0, sizeof (h[0]));
-
- /* Must have at least 4 keys (e.g. one search bucket). */
- log2_n_keys = clib_max (log2_n_keys, 2);
-
- h->log2_n_keys = log2_n_keys;
- h->n_key_u32 = n_key_u32;
- m = pow2_mask (h->log2_n_keys) & ~3;
- for (i = 0; i < VECTOR_WORD_TYPE_LEN (u32); i++)
- h->bucket_mask.as_u32[i] = m;
-
- /* Allocate and zero search buckets. */
- i = (sizeof (b[0]) / sizeof (u32x4) + n_key_u32) << (log2_n_keys - 2);
- vec_validate_aligned (h->search_buckets, i - 1, CLIB_CACHE_LINE_BYTES);
-
- for (i = 0; i < ARRAY_LEN (h->find_first_zero_table); i++)
- h->find_first_zero_table[i] = min_log2 (first_set (~i));
-
- for (i = 0; i < ARRAY_LEN (h->hash_seeds); i++)
- for (j = 0; j < VECTOR_WORD_TYPE_LEN (u32); j++)
- h->hash_seeds[i].as_u32[j] = hash_seeds[i];
-}
-
-static_always_inline u32
-vhash_main_key_gather (void *_vm, u32 vi, u32 wi, u32 n_key_u32)
-{
- vhash_main_t *vm = _vm;
- return vec_elt (vm->keys, vi * n_key_u32 + wi);
-}
-
-static_always_inline u32x4
-vhash_main_4key_gather (void *_vm, u32 vi, u32 wi, u32 n_key_u32s)
-{
- vhash_main_t *vm = _vm;
- u32x4_union_t x;
-
- ASSERT (n_key_u32s == vm->n_key_u32);
- ASSERT (wi < n_key_u32s);
-
- x.as_u32[0] = vec_elt (vm->keys, (vi + 0) * n_key_u32s + wi);
- x.as_u32[1] = vec_elt (vm->keys, (vi + 1) * n_key_u32s + wi);
- x.as_u32[2] = vec_elt (vm->keys, (vi + 2) * n_key_u32s + wi);
- x.as_u32[3] = vec_elt (vm->keys, (vi + 3) * n_key_u32s + wi);
- return x.as_u32x4;
-}
-
-static_always_inline u32
-vhash_main_set_result (void *_vm, u32 vi, u32 old_result, u32 n_key_u32)
-{
- vhash_main_t *vm = _vm;
- u32 *p = vec_elt_at_index (vm->results, vi);
- u32 new_result = p[0];
- p[0] = old_result;
- return new_result;
-}
-
-static_always_inline u32
-vhash_main_get_result (void *_vm, u32 vi, u32 old_result, u32 n_key_u32)
-{
- vhash_main_t *vm = _vm;
- vec_elt (vm->results, vi) = old_result;
- return old_result;
-}
-
-static_always_inline u32x4
-vhash_main_get_4result (void *_vm, u32 vi, u32x4 old_result, u32 n_key_u32)
-{
- vhash_main_t *vm = _vm;
- u32x4 *p = (u32x4 *) vec_elt_at_index (vm->results, vi);
- p[0] = old_result;
- return old_result;
-}
-
-#define _(N_KEY_U32) \
- static_always_inline u32 \
- vhash_main_key_gather_##N_KEY_U32 (void * _vm, u32 vi, u32 i) \
- { return vhash_main_key_gather (_vm, vi, i, N_KEY_U32); } \
- \
- static_always_inline u32x4 \
- vhash_main_4key_gather_##N_KEY_U32 (void * _vm, u32 vi, u32 i) \
- { return vhash_main_4key_gather (_vm, vi, i, N_KEY_U32); } \
- \
- clib_pipeline_stage_static \
- (vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_gather_4key_stage \
- (vm->vhash, \
- /* vector_index */ i, \
- vhash_main_4key_gather_##N_KEY_U32, \
- vm, \
- N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_gather_key_stage \
- (vm->vhash, \
- /* vector_index */ vm->n_vectors_div_4, \
- /* n_vectors */ vm->n_vectors_mod_4, \
- vhash_main_key_gather_##N_KEY_U32, \
- vm, \
- N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage \
- (vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_finalize_stage (vm->vhash, i, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_finalize_stage (vm->vhash, vm->n_vectors_div_4, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_static \
- (vhash_main_get_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_get_4_stage (vm->vhash, \
- /* vector_index */ i, \
- vhash_main_get_4result, \
- vm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_get_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_get_stage (vm->vhash, \
- /* vector_index */ vm->n_vectors_div_4, \
- /* n_vectors */ vm->n_vectors_mod_4, \
- vhash_main_get_result, \
- vm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_static \
- (vhash_main_set_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_set_stage (vm->vhash, \
- /* vector_index */ i, \
- /* n_vectors */ VECTOR_WORD_TYPE_LEN (u32), \
- vhash_main_set_result, \
- vm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_set_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_set_stage (vm->vhash, \
- /* vector_index */ vm->n_vectors_div_4, \
- /* n_vectors */ vm->n_vectors_mod_4, \
- vhash_main_set_result, \
- vm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_static \
- (vhash_main_unset_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_unset_stage (vm->vhash, \
- /* vector_index */ i, \
- /* n_vectors */ VECTOR_WORD_TYPE_LEN (u32), \
- vhash_main_get_result, \
- vm, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_unset_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_unset_stage (vm->vhash, \
- /* vector_index */ vm->n_vectors_div_4, \
- /* n_vectors */ vm->n_vectors_mod_4, \
- vhash_main_get_result, \
- vm, N_KEY_U32); \
- })
-
-_(1);
-_(2);
-_(3);
-_(4);
-_(5);
-_(6);
-
-#undef _
-
-#define _(N_KEY_U32) \
- clib_pipeline_stage \
- (vhash_main_hash_mix_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_mix_stage (vm->vhash, i, N_KEY_U32); \
- }) \
- \
- clib_pipeline_stage_no_inline \
- (vhash_main_hash_mix_mod_stage_##N_KEY_U32, \
- vhash_main_t *, vm, i, \
- { \
- vhash_mix_stage (vm->vhash, vm->n_vectors_div_4, N_KEY_U32); \
- })
-
-_(4);
-_(5);
-_(6);
-
-#undef _
-
-typedef enum
-{
- GET, SET, UNSET,
-} vhash_main_op_t;
-
-static void
-vhash_main_op (vhash_main_t * vm, vhash_main_op_t op)
-{
- u32 n_keys = vec_len (vm->results);
-
- vm->n_key_u32 = vm->vhash->n_key_u32;
-
- vhash_validate_sizes (vm->vhash, vm->n_key_u32, n_keys);
-
- vm->n_vectors_div_4 = n_keys / 4;
- vm->n_vectors_mod_4 = n_keys % 4;
-
- if (vm->n_vectors_div_4 > 0)
- {
- switch (vm->n_key_u32)
- {
- default:
- ASSERT (0);
- break;
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_3_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_get_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_3_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_set_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_3_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_unset_stage_##N_KEY_U32); \
- break;
-
- _(1);
- _(2);
- _(3);
-
-#undef _
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_4_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_mix_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_get_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_4_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_mix_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_set_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_4_stage \
- (vm->n_vectors_div_4, \
- vm, \
- vhash_main_gather_keys_stage_##N_KEY_U32, \
- vhash_main_hash_mix_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_stage_##N_KEY_U32, \
- vhash_main_unset_stage_##N_KEY_U32); \
- break;
-
- _(4);
- _(5);
- _(6);
-
-#undef _
- }
- }
-
-
- if (vm->n_vectors_mod_4 > 0)
- {
- switch (vm->n_key_u32)
- {
- default:
- ASSERT (0);
- break;
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_3_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_get_mod_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_3_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_set_mod_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_3_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_unset_mod_stage_##N_KEY_U32); \
- break;
-
- _(1);
- _(2);
- _(3);
-
-#undef _
-
-#define _(N_KEY_U32) \
- case N_KEY_U32: \
- if (op == GET) \
- clib_pipeline_run_4_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_mix_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_get_mod_stage_##N_KEY_U32); \
- else if (op == SET) \
- clib_pipeline_run_4_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_mix_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_set_mod_stage_##N_KEY_U32); \
- else \
- clib_pipeline_run_4_stage \
- (1, \
- vm, \
- vhash_main_gather_keys_mod_stage_##N_KEY_U32, \
- vhash_main_hash_mix_mod_stage_##N_KEY_U32, \
- vhash_main_hash_finalize_mod_stage_##N_KEY_U32, \
- vhash_main_unset_mod_stage_##N_KEY_U32); \
- break;
-
- _(4);
- _(5);
- _(6);
-
-#undef _
- }
- }
-}
-
-void
-vhash_main_get (vhash_main_t * vm)
-{
- vhash_main_op (vm, GET);
-}
-
-void
-vhash_main_set (vhash_main_t * vm)
-{
- vhash_main_op (vm, SET);
-}
-
-void
-vhash_main_unset (vhash_main_t * vm)
-{
- vhash_main_op (vm, UNSET);
-}
-
-u32
-vhash_resize_incremental (vhash_resize_t * vr, u32 vector_index,
- u32 n_keys_this_call)
-{
- vhash_t *old = vr->old;
- vhash_main_t *vm = &vr->new;
- vhash_t *new = vm->vhash;
- uword i, j, n_key_u32;
-
- n_key_u32 = old->n_key_u32;
-
- if (vector_index == 0)
- {
- u32 hash_seeds[3];
- hash_seeds[0] = old->hash_seeds[0].as_u32[0];
- hash_seeds[1] = old->hash_seeds[1].as_u32[0];
- hash_seeds[2] = old->hash_seeds[2].as_u32[0];
- vhash_init (new, old->log2_n_keys + 1, n_key_u32, hash_seeds);
- }
-
- vec_reset_length (vm->keys);
- vec_reset_length (vm->results);
-
- if (0 == (vector_index >> old->log2_n_keys))
- {
- for (i = vector_index; 0 == (i >> (old->log2_n_keys - 2)); i++)
- {
- vhash_search_bucket_t *b =
- vhash_get_search_bucket_with_index (old, 4 * i, n_key_u32);
- u32 r, *k;
-
-#define _(I) \
- if ((r = b->result.as_u32[I]) != 0) \
- { \
- vec_add1 (vm->results, r - 1); \
- vec_add2 (vm->keys, k, n_key_u32); \
- for (j = 0; j < n_key_u32; j++) \
- k[j] = b->key[j].as_u32[I]; \
- }
-
- _(0);
- _(1);
- _(2);
- _(3);
-
-#undef _
-
- if (vec_len (vm->results) >= n_keys_this_call)
- {
- vhash_main_op (vm, SET);
- return i;
- }
- }
- }
-
- /* Add overflow buckets. */
- {
- vhash_overflow_buckets_t *ob;
- vhash_overflow_search_bucket_t *b;
-
- for (ob = old->overflow_buckets;
- ob < old->overflow_buckets + ARRAY_LEN (old->overflow_buckets); ob++)
- {
- foreach_vhash_overflow_bucket (b, ob, old->n_key_u32)
- {
- u32 r, *k;
-
-#define _(I) \
- if ((r = b->result.as_u32[I]) != 0) \
- { \
- vec_add1 (vm->results, r - 1); \
- vec_add2 (vm->keys, k, n_key_u32); \
- for (j = 0; j < n_key_u32; j++) \
- k[j] = b->key[j].as_u32[I]; \
- }
-
- _(0);
- _(1);
- _(2);
- _(3);
-
-#undef _
- }
- }
- }
-
- vhash_main_op (vm, SET);
-
- /* Let caller know we are done. */
- return ~0;
-}
-
-void
-vhash_resize (vhash_t * old, u32 log2_n_keys)
-{
- static vhash_resize_t vr;
- vhash_t new;
- u32 i = 0;
-
- vr.old = old;
- vr.new.vhash = &new;
-
- while (1)
- {
- i = vhash_resize_incremental (&vr, i, 1024);
- if (i == ~0)
- break;
- }
-
- vhash_free (old);
- *old = new;
-}
-
-#endif /* CLIB_HAVE_VEC128 */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/vhash.h b/src/vppinfra/vhash.h
deleted file mode 100644
index 85dfb788308..00000000000
--- a/src/vppinfra/vhash.h
+++ /dev/null
@@ -1,850 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2010 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_clib_vhash_h
-#define included_clib_vhash_h
-
-#include <vppinfra/vector.h>
-
-#ifdef CLIB_HAVE_VEC128
-
-#include <vppinfra/cache.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/pipeline.h>
-
-/* Gathers 32 bits worth of key with given index. */
-typedef u32 (vhash_key_function_t) (void *state, u32 vector_index,
- u32 key_word_index);
-typedef u32x4 (vhash_4key_function_t) (void *state, u32 vector_index,
- u32 key_word_index);
-/* Sets/gets result of hash lookup. */
-typedef u32 (vhash_result_function_t) (void *state, u32 vector_index,
- u32 result, u32 n_key_u32);
-typedef u32x4 (vhash_4result_function_t) (void *state, u32 vector_index,
- u32x4 results, u32 n_key_u32);
-
-typedef struct
-{
- u32x4_union_t hashed_key[3];
-} vhash_hashed_key_t;
-
-/* Search buckets are really this structure. */
-typedef struct
-{
- /* 4 results for this bucket.
- Zero is used to mark empty results. This means user can't use the result ~0
- since user results differ from internal results stored in buckets by 1.
- e.g. internal result = user result + 1. */
- u32x4_union_t result;
-
- /* n_key_u32s u32x4s of key data follow. */
- u32x4_union_t key[0];
-} vhash_search_bucket_t;
-
-typedef struct
-{
- u32x4_union_t *search_buckets;
-
- /* Vector of bucket free indices. */
- u32 *free_indices;
-
- /* Number of entries in this overflow bucket. */
- u32 n_overflow;
-} vhash_overflow_buckets_t;
-
-typedef struct
-{
- /* 2^log2_n_keys keys grouped in groups of 4.
- Each bucket contains 4 results plus 4 keys for a
- total of (1 + n_key_u32) u32x4s. */
- u32x4_union_t *search_buckets;
-
- /* When a bucket of 4 results/keys are full we search
- the overflow. hash_key is used to select which overflow
- bucket. */
- vhash_overflow_buckets_t overflow_buckets[16];
-
- /* Total count of occupied elements in hash table. */
- u32 n_elts;
-
- u32 log2_n_keys;
-
- /* Number of 32 bit words in a hash key. */
- u32 n_key_u32;
-
- u32x4_union_t bucket_mask;
-
- /* table[i] = min_log2 (first_set (~i)). */
- u8 find_first_zero_table[16];
-
- /* Hash seeds for Jenkins hash. */
- u32x4_union_t hash_seeds[3];
-
- /* Key work space is a vector of length
- n_key_u32s << log2_n_key_word_len_u32x. */
- u32 log2_n_key_word_len_u32x;
-
- /* Work space to store keys between pipeline stages. */
- u32x4_union_t *key_work_space;
-
- /* Hash work space to store Jenkins hash values between
- pipeline stages. */
- vhash_hashed_key_t *hash_work_space;
-} vhash_t;
-
-always_inline vhash_overflow_buckets_t *
-vhash_get_overflow_buckets (vhash_t * h, u32 key)
-{
- u32 i = (((key & h->bucket_mask.as_u32[0]) >> 2) & 0xf);
- ASSERT (i < ARRAY_LEN (h->overflow_buckets));
- return h->overflow_buckets + i;
-}
-
-always_inline uword
-vhash_is_non_empty_overflow_bucket (vhash_t * h, u32 key)
-{
- u32 i = (((key & h->bucket_mask.as_u32[0]) >> 2) & 0xf);
- ASSERT (i < ARRAY_LEN (h->overflow_buckets));
- return h->overflow_buckets[i].n_overflow > 0;
-}
-
-always_inline void
-vhash_free_overflow_buckets (vhash_overflow_buckets_t * obs)
-{
- vec_free (obs->search_buckets);
- vec_free (obs->free_indices);
-}
-
-always_inline void
-vhash_free (vhash_t * h)
-{
- uword i;
- for (i = 0; i < ARRAY_LEN (h->overflow_buckets); i++)
- vhash_free_overflow_buckets (&h->overflow_buckets[i]);
- vec_free (h->search_buckets);
- vec_free (h->key_work_space);
- vec_free (h->hash_work_space);
-}
-
-always_inline void
-vhash_set_key_word (vhash_t * h, u32 wi, u32 vi, u32 value)
-{
- u32 i0 = (wi << h->log2_n_key_word_len_u32x) + (vi / 4);
- u32 i1 = vi % 4;
- vec_elt (h->key_work_space, i0).as_u32[i1] = value;
-}
-
-always_inline void
-vhash_set_key_word_u32x (vhash_t * h, u32 wi, u32 vi, u32x value)
-{
- u32 i0 = (wi << h->log2_n_key_word_len_u32x) + (vi / 4);
- vec_elt (h->key_work_space, i0).as_u32x4 = value;
-}
-
-always_inline u32
-vhash_get_key_word (vhash_t * h, u32 wi, u32 vi)
-{
- u32 i0 = (wi << h->log2_n_key_word_len_u32x) + (vi / 4);
- u32 i1 = vi % 4;
- return vec_elt (h->key_work_space, i0).as_u32[i1];
-}
-
-always_inline u32x
-vhash_get_key_word_u32x (vhash_t * h, u32 wi, u32 vi)
-{
- u32 i0 = (wi << h->log2_n_key_word_len_u32x) + vi;
- return vec_elt (h->key_work_space, i0).as_u32x4;
-}
-
-always_inline void
-vhash_validate_sizes (vhash_t * h, u32 n_key_u32, u32 n_vectors)
-{
- u32 n, l;
-
- n = max_pow2 (n_vectors) / 4;
- n = clib_max (n, 8);
-
- h->log2_n_key_word_len_u32x = l = min_log2 (n);
- vec_validate_aligned (h->key_work_space, (n_key_u32 << l) - 1,
- CLIB_CACHE_LINE_BYTES);
- vec_validate_aligned (h->hash_work_space, n - 1, CLIB_CACHE_LINE_BYTES);
-}
-
-always_inline void
-vhash_gather_key_stage (vhash_t * h,
- u32 vector_index,
- u32 n_vectors,
- vhash_key_function_t key_function,
- void *state, u32 n_key_u32s)
-{
- u32 i, j, vi;
-
- /* Gather keys for 4 packets (for 128 bit vector length e.g. u32x4). */
- for (i = 0; i < n_vectors; i++)
- {
- vi = vector_index * 4 + i;
- for (j = 0; j < n_key_u32s; j++)
- vhash_set_key_word (h, j, vi, key_function (state, vi, j));
- }
-}
-
-always_inline void
-vhash_gather_4key_stage (vhash_t * h,
- u32 vector_index,
- vhash_4key_function_t key_function,
- void *state, u32 n_key_u32s)
-{
- u32 j, vi;
- vi = vector_index * 4;
- for (j = 0; j < n_key_u32s; j++)
- vhash_set_key_word_u32x (h, j, vi, key_function (state, vi, j));
-}
-
-always_inline void
-vhash_mix_stage (vhash_t * h, u32 vector_index, u32 n_key_u32s)
-{
- i32 i, n_left;
- u32x a, b, c;
-
- /* Only need to do this for keys longer than 12 bytes. */
- ASSERT (n_key_u32s > 3);
-
- a = h->hash_seeds[0].as_u32x4;
- b = h->hash_seeds[1].as_u32x4;
- c = h->hash_seeds[2].as_u32x4;
- for (i = 0, n_left = n_key_u32s - 3; n_left > 0; n_left -= 3, i += 3)
- {
- a +=
- vhash_get_key_word_u32x (h, n_key_u32s - 1 - (i + 0), vector_index);
- if (n_left > 1)
- b +=
- vhash_get_key_word_u32x (h, n_key_u32s - 1 - (i + 1), vector_index);
- if (n_left > 2)
- c +=
- vhash_get_key_word_u32x (h, n_key_u32s - 1 - (i + 2), vector_index);
-
- hash_v3_mix_u32x (a, b, c);
- }
-
- /* Save away a, b, c for later finalize. */
- {
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
- hk->hashed_key[0].as_u32x4 = a;
- hk->hashed_key[1].as_u32x4 = b;
- hk->hashed_key[2].as_u32x4 = c;
- }
-}
-
-always_inline vhash_search_bucket_t *
-vhash_get_search_bucket_with_index (vhash_t * h, u32 i, u32 n_key_u32s)
-{
- return ((vhash_search_bucket_t *)
- vec_elt_at_index (h->search_buckets,
- (i / 4) *
- ((sizeof (vhash_search_bucket_t) /
- sizeof (u32x4)) + n_key_u32s)));
-}
-
-always_inline vhash_search_bucket_t *
-vhash_get_search_bucket (vhash_t * h, u32 key_hash, u32 n_key_u32s)
-{
- u32 i = key_hash & h->bucket_mask.as_u32[0];
- return vhash_get_search_bucket_with_index (h, i, n_key_u32s);
-}
-
-always_inline u32x4
-vhash_get_4_search_bucket_byte_offsets (vhash_t * h, u32x4 key_hash,
- u32 n_key_u32s)
-{
- vhash_search_bucket_t *b;
- u32 n_bytes_per_bucket = sizeof (b[0]) + n_key_u32s * sizeof (b->key[0]);
- u32x4 r = key_hash & h->bucket_mask.as_u32x4;
-
- /* Multiply with shifts and adds to get bucket byte offset. */
-#define _(x) u32x4_ishift_left (r, (x) - 2)
- if (n_bytes_per_bucket == (1 << 5))
- r = _(5);
- else if (n_bytes_per_bucket == ((1 << 5) + (1 << 4)))
- r = _(5) + _(4);
- else if (n_bytes_per_bucket == (1 << 6))
- r = _(6);
- else if (n_bytes_per_bucket == ((1 << 6) + (1 << 4)))
- r = _(6) + _(4);
- else if (n_bytes_per_bucket == ((1 << 6) + (1 << 5)))
- r = _(6) + _(5);
- else if (n_bytes_per_bucket == ((1 << 6) + (1 << 5) + (1 << 4)))
- r = _(6) + _(5) + _(4);
- else
- ASSERT (0);
-#undef _
- return r;
-}
-
-always_inline void
-vhash_finalize_stage (vhash_t * h, u32 vector_index, u32 n_key_u32s)
-{
- i32 n_left;
- u32x a, b, c;
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
-
- if (n_key_u32s <= 3)
- {
- a = h->hash_seeds[0].as_u32x4;
- b = h->hash_seeds[1].as_u32x4;
- c = h->hash_seeds[2].as_u32x4;
- n_left = n_key_u32s;
- }
- else
- {
- a = hk->hashed_key[0].as_u32x4;
- b = hk->hashed_key[1].as_u32x4;
- c = hk->hashed_key[2].as_u32x4;
- n_left = 3;
- }
-
- if (n_left > 0)
- a += vhash_get_key_word_u32x (h, 0, vector_index);
- if (n_left > 1)
- b += vhash_get_key_word_u32x (h, 1, vector_index);
- if (n_left > 2)
- c += vhash_get_key_word_u32x (h, 2, vector_index);
-
- hash_v3_finalize_u32x (a, b, c);
-
- /* Only save away last 32 bits of hash code. */
- hk->hashed_key[2].as_u32x4 = c;
-
- /* Prefetch buckets. This costs a bit for small tables but saves
- big for large ones. */
- {
- vhash_search_bucket_t *b0, *b1, *b2, *b3;
- u32x4_union_t kh;
-
- kh.as_u32x4 = vhash_get_4_search_bucket_byte_offsets (h, c, n_key_u32s);
- hk->hashed_key[1].as_u32x4 = kh.as_u32x4;
-
- b0 = (void *) h->search_buckets + kh.as_u32[0];
- b1 = (void *) h->search_buckets + kh.as_u32[1];
- b2 = (void *) h->search_buckets + kh.as_u32[2];
- b3 = (void *) h->search_buckets + kh.as_u32[3];
-
- CLIB_PREFETCH (b0, sizeof (b0[0]) + n_key_u32s * sizeof (b0->key[0]),
- READ);
- CLIB_PREFETCH (b1, sizeof (b1[0]) + n_key_u32s * sizeof (b1->key[0]),
- READ);
- CLIB_PREFETCH (b2, sizeof (b2[0]) + n_key_u32s * sizeof (b2->key[0]),
- READ);
- CLIB_PREFETCH (b3, sizeof (b3[0]) + n_key_u32s * sizeof (b3->key[0]),
- READ);
- }
-}
-
-always_inline u32
-vhash_merge_results (u32x4 r)
-{
- r = r | u32x4_word_shift_right (r, 2);
- r = r | u32x4_word_shift_right (r, 1);
- return u32x4_get0 (r);
-}
-
-/* Bucket is full if none of its 4 results are 0. */
-always_inline u32
-vhash_search_bucket_is_full (u32x4 r)
-{
- return u32x4_zero_byte_mask (r) == 0;
-}
-
-always_inline u32
-vhash_non_empty_result_index (u32x4 x)
-{
- u32 empty_mask = u32x4_zero_byte_mask (x);
- ASSERT (empty_mask != 0xffff);
- return min_log2 (0xffff & ~empty_mask) / 4;
-}
-
-always_inline u32
-vhash_empty_result_index (u32x4 x)
-{
- u32 empty_mask = u32x4_zero_byte_mask (x);
- ASSERT (empty_mask != 0);
- return min_log2 (0xffff & empty_mask) / 4;
-}
-
-always_inline u32x4
-vhash_bucket_compare (vhash_t * h,
- u32x4_union_t * bucket, u32 key_word_index, u32 vi)
-{
- u32 k = vhash_get_key_word (h, key_word_index, vi);
- u32x4 x = { k, k, k, k };
- return (bucket[key_word_index].as_u32x4 == x);
-}
-
-#define vhash_bucket_compare_4(h,wi,vi,b0,b1,b2,b3,cmp0,cmp1,cmp2,cmp3) \
-do { \
- u32x4 _k4 = vhash_get_key_word_u32x ((h), (wi), (vi)); \
- u32x4 _k0 = u32x4_splat_word (_k4, 0); \
- u32x4 _k1 = u32x4_splat_word (_k4, 1); \
- u32x4 _k2 = u32x4_splat_word (_k4, 2); \
- u32x4 _k3 = u32x4_splat_word (_k4, 3); \
- \
- cmp0 = (b0->key[wi].as_u32x4 == _k0); \
- cmp1 = (b1->key[wi].as_u32x4 == _k1); \
- cmp2 = (b2->key[wi].as_u32x4 == _k2); \
- cmp3 = (b3->key[wi].as_u32x4 == _k3); \
-} while (0)
-
-u32 vhash_get_overflow (vhash_t * h, u32 key_hash, u32 vi, u32 n_key_u32s);
-
-always_inline void
-vhash_get_stage (vhash_t * h,
- u32 vector_index,
- u32 n_vectors,
- vhash_result_function_t result_function,
- void *state, u32 n_key_u32s)
-{
- u32 i, j;
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
- vhash_search_bucket_t *b;
-
- for (i = 0; i < n_vectors; i++)
- {
- u32 vi = vector_index * 4 + i;
- u32 key_hash = hk->hashed_key[2].as_u32[i];
- u32 result;
- u32x4 r, r0;
-
- b = vhash_get_search_bucket (h, key_hash, n_key_u32s);
-
- r = r0 = b->result.as_u32x4;
- for (j = 0; j < n_key_u32s; j++)
- r &= vhash_bucket_compare (h, &b->key[0], j, vi);
-
- /* At this point only one of 4 results should be non-zero.
- So we can or all 4 together and get the valid result (if there is one). */
- result = vhash_merge_results (r);
-
- if (!result && vhash_search_bucket_is_full (r0))
- result = vhash_get_overflow (h, key_hash, vi, n_key_u32s);
-
- result_function (state, vi, result - 1, n_key_u32s);
- }
-}
-
-always_inline void
-vhash_get_4_stage (vhash_t * h,
- u32 vector_index,
- vhash_4result_function_t result_function,
- void *state, u32 n_key_u32s)
-{
- u32 i, vi;
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
- vhash_search_bucket_t *b0, *b1, *b2, *b3;
- u32x4 r0, r1, r2, r3, r0_before, r1_before, r2_before, r3_before;
- u32x4_union_t kh;
-
- kh.as_u32x4 = hk->hashed_key[1].as_u32x4;
-
- b0 = (void *) h->search_buckets + kh.as_u32[0];
- b1 = (void *) h->search_buckets + kh.as_u32[1];
- b2 = (void *) h->search_buckets + kh.as_u32[2];
- b3 = (void *) h->search_buckets + kh.as_u32[3];
-
- r0 = r0_before = b0->result.as_u32x4;
- r1 = r1_before = b1->result.as_u32x4;
- r2 = r2_before = b2->result.as_u32x4;
- r3 = r3_before = b3->result.as_u32x4;
-
- vi = vector_index * 4;
-
- for (i = 0; i < n_key_u32s; i++)
- {
- u32x4 c0, c1, c2, c3;
- vhash_bucket_compare_4 (h, i, vector_index,
- b0, b1, b2, b3, c0, c1, c2, c3);
- r0 &= c0;
- r1 &= c1;
- r2 &= c2;
- r3 &= c3;
- }
-
- u32x4_transpose (r0, r1, r2, r3);
-
- /* Gather together 4 results. */
- {
- u32x4_union_t r;
- u32x4 ones = { 1, 1, 1, 1 };
- u32 not_found_mask;
-
- r.as_u32x4 = r0 | r1 | r2 | r3;
- not_found_mask = u32x4_zero_byte_mask (r.as_u32x4);
- not_found_mask &= ((vhash_search_bucket_is_full (r0_before) << (4 * 0))
- | (vhash_search_bucket_is_full (r1_before) << (4 * 1))
- | (vhash_search_bucket_is_full (r2_before) << (4 * 2))
- | (vhash_search_bucket_is_full (r3_before) <<
- (4 * 3)));
- if (not_found_mask)
- {
- u32x4_union_t key_hash;
-
- key_hash.as_u32x4 =
- hk->hashed_key[2].as_u32x4 & h->bucket_mask.as_u32x4;
-
- /* Slow path: one of the buckets may have been full and we need to search overflow. */
- if (not_found_mask & (1 << (4 * 0)))
- r.as_u32[0] = vhash_get_overflow (h, key_hash.as_u32[0],
- vi + 0, n_key_u32s);
- if (not_found_mask & (1 << (4 * 1)))
- r.as_u32[1] = vhash_get_overflow (h, key_hash.as_u32[1],
- vi + 1, n_key_u32s);
- if (not_found_mask & (1 << (4 * 2)))
- r.as_u32[2] = vhash_get_overflow (h, key_hash.as_u32[2],
- vi + 2, n_key_u32s);
- if (not_found_mask & (1 << (4 * 3)))
- r.as_u32[3] = vhash_get_overflow (h, key_hash.as_u32[3],
- vi + 3, n_key_u32s);
- }
-
- result_function (state, vi, r.as_u32x4 - ones, n_key_u32s);
- }
-}
-
-u32
-vhash_set_overflow (vhash_t * h,
- u32 key_hash, u32 vi, u32 new_result, u32 n_key_u32s);
-
-always_inline void
-vhash_set_stage (vhash_t * h,
- u32 vector_index,
- u32 n_vectors,
- vhash_result_function_t result_function,
- void *state, u32 n_key_u32s)
-{
- u32 i, j, n_new_elts = 0;
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
- vhash_search_bucket_t *b;
-
- for (i = 0; i < n_vectors; i++)
- {
- u32 vi = vector_index * 4 + i;
- u32 key_hash = hk->hashed_key[2].as_u32[i];
- u32 old_result, new_result;
- u32 i_set;
- u32x4 r, r0, cmp;
-
- b = vhash_get_search_bucket (h, key_hash, n_key_u32s);
-
- cmp = vhash_bucket_compare (h, &b->key[0], 0, vi);
- for (j = 1; j < n_key_u32s; j++)
- cmp &= vhash_bucket_compare (h, &b->key[0], j, vi);
-
- r0 = b->result.as_u32x4;
- r = r0 & cmp;
-
- /* At this point only one of 4 results should be non-zero.
- So we can or all 4 together and get the valid result (if there is one). */
- old_result = vhash_merge_results (r);
-
- if (!old_result && vhash_search_bucket_is_full (r0))
- old_result = vhash_get_overflow (h, key_hash, vi, n_key_u32s);
-
- /* Get new result; possibly do something with old result. */
- new_result = result_function (state, vi, old_result - 1, n_key_u32s);
-
- /* User cannot use ~0 as a hash result since a result of 0 is
- used to mark unused bucket entries. */
- ASSERT (new_result + 1 != 0);
- new_result += 1;
-
- /* Set over-writes existing result. */
- if (old_result)
- {
- i_set = vhash_non_empty_result_index (r);
- b->result.as_u32[i_set] = new_result;
- }
- else
- {
- /* Set allocates new result. */
- u32 valid_mask;
-
- valid_mask = (((b->result.as_u32[0] != 0) << 0)
- | ((b->result.as_u32[1] != 0) << 1)
- | ((b->result.as_u32[2] != 0) << 2)
- | ((b->result.as_u32[3] != 0) << 3));
-
- /* Rotate 4 bit valid mask so that key_hash corresponds to bit 0. */
- i_set = key_hash & 3;
- valid_mask =
- ((valid_mask >> i_set) | (valid_mask << (4 - i_set))) & 0xf;
-
- /* Insert into first empty position in bucket after key_hash. */
- i_set = (i_set + h->find_first_zero_table[valid_mask]) & 3;
-
- if (valid_mask != 0xf)
- {
- n_new_elts += 1;
-
- b->result.as_u32[i_set] = new_result;
-
- /* Insert new key into search bucket. */
- for (j = 0; j < n_key_u32s; j++)
- b->key[j].as_u32[i_set] = vhash_get_key_word (h, j, vi);
- }
- else
- vhash_set_overflow (h, key_hash, vi, new_result, n_key_u32s);
- }
- }
-
- h->n_elts += n_new_elts;
-}
-
-u32 vhash_unset_overflow (vhash_t * h, u32 key_hash, u32 vi, u32 n_key_u32s);
-
-void
-vhash_unset_refill_from_overflow (vhash_t * h,
- vhash_search_bucket_t * b,
- u32 key_hash, u32 n_key_u32s);
-
-/* Note: Eliot tried doing 4 unsets at once and could not get a speed up
- and abandoned vhash_unset_4_stage. */
-always_inline void
-vhash_unset_stage (vhash_t * h,
- u32 vector_index,
- u32 n_vectors,
- vhash_result_function_t result_function,
- void *state, u32 n_key_u32s)
-{
- u32 i, j, n_elts_unset = 0;
- vhash_hashed_key_t *hk =
- vec_elt_at_index (h->hash_work_space, vector_index);
- vhash_search_bucket_t *b;
-
- for (i = 0; i < n_vectors; i++)
- {
- u32 vi = vector_index * 4 + i;
- u32 key_hash = hk->hashed_key[2].as_u32[i];
- u32 old_result;
- u32x4 cmp, r0;
-
- b = vhash_get_search_bucket (h, key_hash, n_key_u32s);
-
- cmp = vhash_bucket_compare (h, &b->key[0], 0, vi);
- for (j = 1; j < n_key_u32s; j++)
- cmp &= vhash_bucket_compare (h, &b->key[0], j, vi);
-
- r0 = b->result.as_u32x4;
-
- /* At this point cmp is all ones where key matches and zero otherwise.
- So, this will invalidate results for matching key and do nothing otherwise. */
- b->result.as_u32x4 = r0 & ~cmp;
-
- old_result = vhash_merge_results (r0 & cmp);
-
- n_elts_unset += old_result != 0;
-
- if (vhash_search_bucket_is_full (r0))
- {
- if (old_result)
- vhash_unset_refill_from_overflow (h, b, key_hash, n_key_u32s);
- else
- old_result = vhash_unset_overflow (h, key_hash, vi, n_key_u32s);
- }
-
- result_function (state, vi, old_result - 1, n_key_u32s);
- }
- ASSERT (h->n_elts >= n_elts_unset);
- h->n_elts -= n_elts_unset;
-}
-
-void vhash_init (vhash_t * h, u32 log2_n_keys, u32 n_key_u32,
- u32 * hash_seeds);
-
-void vhash_resize (vhash_t * old, u32 log2_n_keys);
-
-typedef struct
-{
- vhash_t *vhash;
-
- union
- {
- struct
- {
- u32 *keys;
- u32 *results;
- };
-
- /* Vector layout for get keys. */
- struct
- {
- u32x4_union_t *get_keys;
- u32x4_union_t *get_results;
- };
- };
-
- u32 n_vectors_div_4;
- u32 n_vectors_mod_4;
-
- u32 n_key_u32;
-
- u32 n_keys;
-} vhash_main_t;
-
-always_inline u32
-vhash_get_alloc_keys (vhash_main_t * vm, u32 n_keys, u32 n_key_u32)
-{
- u32 i, n;
-
- i = vm->n_keys;
- vm->n_keys = i + n_keys;
-
- n = (round_pow2 (vm->n_keys, 4) / 4) * n_key_u32;
-
- vec_validate_aligned (vm->get_keys, n - 1, sizeof (vm->get_keys[0]));
- vec_validate_aligned (vm->get_results, n - 1, sizeof (vm->get_results[0]));
-
- return i;
-}
-
-always_inline void
-vhash_get_set_key_word (vhash_main_t * vm, u32 vi, u32 wi, u32 n_key_u32,
- u32 value)
-{
- u32x4_union_t *k = vec_elt_at_index (vm->get_keys, (vi / 4) * n_key_u32);
- ASSERT (wi < n_key_u32);
- k[wi].as_u32[vi % 4] = value;
-}
-
-always_inline u32
-vhash_get_fetch_result (vhash_main_t * vm, u32 vi)
-{
- u32x4_union_t *r = vec_elt_at_index (vm->get_results, vi / 4);
- return r->as_u32[vi % 4];
-}
-
-void vhash_main_get (vhash_main_t * vm);
-
-always_inline u32
-vhash_set_alloc_keys (vhash_main_t * vm, u32 n_keys, u32 n_key_u32)
-{
- u32 i;
-
- i = vm->n_keys;
- vm->n_keys = i + n_keys;
-
- vec_resize (vm->keys, n_keys * n_key_u32);
- vec_resize (vm->results, n_keys);
-
- return i;
-}
-
-always_inline void
-vhash_set_set_key_word (vhash_main_t * vm, u32 vi, u32 wi, u32 n_key_u32,
- u32 value)
-{
- u32 *k = vec_elt_at_index (vm->keys, vi * n_key_u32);
- ASSERT (wi < n_key_u32);
- k[wi] = value;
-}
-
-always_inline void
-vhash_set_set_result (vhash_main_t * vm, u32 vi, u32 result)
-{
- u32 *r = vec_elt_at_index (vm->results, vi);
- r[0] = result;
-}
-
-always_inline u32
-vhash_set_fetch_old_result (vhash_main_t * vm, u32 vi)
-{
- u32 *r = vec_elt_at_index (vm->results, vi);
- return r[0];
-}
-
-void vhash_main_set (vhash_main_t * vm);
-
-always_inline u32
-vhash_unset_alloc_keys (vhash_main_t * vm, u32 n_keys, u32 n_key_u32)
-{
- return vhash_set_alloc_keys (vm, n_keys, n_key_u32);
-}
-
-always_inline void
-vhash_unset_set_key_word (vhash_main_t * vm, u32 vi, u32 wi, u32 n_key_u32,
- u32 value)
-{
- vhash_set_set_key_word (vm, vi, wi, n_key_u32, value);
-}
-
-always_inline void
-vhash_unset_set_result (vhash_main_t * vm, u32 vi, u32 result)
-{
- vhash_set_set_result (vm, vi, result);
-}
-
-always_inline u32
-vhash_unset_fetch_old_result (vhash_main_t * vm, u32 vi)
-{
- return vhash_set_fetch_old_result (vm, vi);
-}
-
-void vhash_main_unset (vhash_main_t * vm);
-
-typedef struct
-{
- vhash_main_t new;
-
- vhash_t *old;
-} vhash_resize_t;
-
-u32 vhash_resize_incremental (vhash_resize_t * vr, u32 vector_index,
- u32 n_vectors);
-
-#endif /* CLIB_HAVE_VEC128 */
-
-#endif /* included_clib_vhash_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/xy.h b/src/vppinfra/xy.h
deleted file mode 100644
index fb562161a62..00000000000
--- a/src/vppinfra/xy.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* (X,Y) coordinates. */
-
-/*
- Copyright (c) 2008 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_clib_xy_h
-#define included_clib_xy_h
-
-#include <vppinfra/types.h>
-
-/* Basic definitions: coordinates and points. */
-typedef double xy_float_t;
-typedef __complex__ double xy_t;
-typedef __complex__ int ixy_t;
-
-typedef __complex__ char i8xy_t;
-typedef __complex__ short i16xy_t;
-typedef __complex__ int i32xy_t;
-
-/* X/Y components of a point: can be used as either rvalue/lvalue. */
-#define xy_x(x) __real__ (x)
-#define xy_y(x) __imag__ (x)
-
-/* Unit vectors in x/y directions. */
-#define xy_x_unit_vector (1)
-#define xy_y_unit_vector (1I)
-
-#endif /* included_clib_xy_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/zvec.c b/src/vppinfra/zvec.c
deleted file mode 100644
index d062e5f7db1..00000000000
--- a/src/vppinfra/zvec.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2001, 2002, 2003, 2005 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include <vppinfra/bitmap.h>
-#include <vppinfra/bitops.h> /* for next_with_same_number_of_set_bits */
-#include <vppinfra/error.h> /* for ASSERT */
-#include <vppinfra/mem.h>
-#include <vppinfra/os.h> /* for os_panic */
-#include <vppinfra/vec.h>
-#include <vppinfra/zvec.h>
-
-/* Consider coding as bitmap, coding = 2^c_0 + 2^c_1 + ... + 2^c_n
- With c_0 < c_1 < ... < c_n. coding == 0 represents c_n = BITS (uword).
-
- Unsigned integers i = 0 ... are represented as follows:
-
- 0 <= i < 2^c_0 (i << 1) | (1 << 0) binary: i 1
- 2^c_0 <= i < 2^c_0 + 2^c_1 (i << 2) | (1 << 1) binary: i 1 0
- ... binary: i 0 ... 0
-
- Smaller numbers use less bits. Coding is chosen so that encoding
- of given histogram of typical values gives smallest number of bits.
- The number and position of coding bits c_i are used to best fit the
- histogram of typical values.
-*/
-
-/* Decode given compressed data. Return number of compressed data
- bits used. */
-uword
-zvec_decode (uword coding, uword zdata, uword * n_zdata_bits)
-{
- uword c, d, result, n_bits;
- uword explicit_end, implicit_end;
-
- result = 0;
- n_bits = 0;
- while (1)
- {
- c = first_set (coding);
- implicit_end = c == coding;
- explicit_end = (zdata & 1) & ~implicit_end;
- d = (zdata >> explicit_end) & (c - 1);
- if (explicit_end | implicit_end)
- {
- result += d;
- n_bits += min_log2 (c) + explicit_end;
- break;
- }
- n_bits += 1;
- result += c;
- coding ^= c;
- zdata >>= 1;
- }
-
- if (coding == 0)
- n_bits = BITS (uword);
-
- *n_zdata_bits = n_bits;
- return result;
-}
-
-uword
-zvec_encode (uword coding, uword data, uword * n_result_bits)
-{
- uword c, shift, result;
- uword explicit_end, implicit_end;
-
- /* Data must be in range. Note special coding == 0
- would break for data - 1 <= coding. */
- ASSERT (data <= coding - 1);
-
- shift = 0;
- while (1)
- {
- c = first_set (coding);
- implicit_end = c == coding;
- explicit_end = ((data & (c - 1)) == data);
- if (explicit_end | implicit_end)
- {
- uword t = explicit_end & ~implicit_end;
- result = ((data << t) | t) << shift;
- *n_result_bits =
- /* data bits */ (c == 0 ? BITS (uword) : min_log2 (c))
- /* shift bits */ + shift + t;
- return result;
- }
- data -= c;
- coding ^= c;
- shift++;
- }
-
- /* Never reached. */
- ASSERT (0);
- return ~0;
-}
-
-always_inline uword
-get_data (void *data, uword data_bytes, uword is_signed)
-{
- if (data_bytes == 1)
- return is_signed ? zvec_signed_to_unsigned (*(i8 *) data) : *(u8 *) data;
- else if (data_bytes == 2)
- return is_signed ? zvec_signed_to_unsigned (*(i16 *) data) : *(u16 *)
- data;
- else if (data_bytes == 4)
- return is_signed ? zvec_signed_to_unsigned (*(i32 *) data) : *(u32 *)
- data;
- else if (data_bytes == 8)
- return is_signed ? zvec_signed_to_unsigned (*(i64 *) data) : *(u64 *)
- data;
- else
- {
- os_panic ();
- return ~0;
- }
-}
-
-always_inline void
-put_data (void *data, uword data_bytes, uword is_signed, uword x)
-{
- if (data_bytes == 1)
- {
- if (is_signed)
- *(i8 *) data = zvec_unsigned_to_signed (x);
- else
- *(u8 *) data = x;
- }
- else if (data_bytes == 2)
- {
- if (is_signed)
- *(i16 *) data = zvec_unsigned_to_signed (x);
- else
- *(u16 *) data = x;
- }
- else if (data_bytes == 4)
- {
- if (is_signed)
- *(i32 *) data = zvec_unsigned_to_signed (x);
- else
- *(u32 *) data = x;
- }
- else if (data_bytes == 8)
- {
- if (is_signed)
- *(i64 *) data = zvec_unsigned_to_signed (x);
- else
- *(u64 *) data = x;
- }
- else
- {
- os_panic ();
- }
-}
-
-always_inline uword *
-zvec_encode_inline (uword * zvec,
- uword * zvec_n_bits,
- uword coding,
- void *data,
- uword data_stride,
- uword n_data, uword data_bytes, uword is_signed)
-{
- uword i;
-
- i = *zvec_n_bits;
- while (n_data >= 1)
- {
- uword d0, z0, l0;
-
- d0 = get_data (data + 0 * data_stride, data_bytes, is_signed);
- data += 1 * data_stride;
- n_data -= 1;
-
- z0 = zvec_encode (coding, d0, &l0);
- zvec = clib_bitmap_set_multiple (zvec, i, z0, l0);
- i += l0;
- }
-
- *zvec_n_bits = i;
- return zvec;
-}
-
-#define _(TYPE,IS_SIGNED) \
- uword * zvec_encode_##TYPE (uword * zvec, \
- uword * zvec_n_bits, \
- uword coding, \
- void * data, \
- uword data_stride, \
- uword n_data) \
- { \
- return zvec_encode_inline (zvec, zvec_n_bits, \
- coding, \
- data, data_stride, n_data, \
- /* data_bytes */ sizeof (TYPE), \
- /* is_signed */ IS_SIGNED); \
- }
-
-_(u8, /* is_signed */ 0);
-_(u16, /* is_signed */ 0);
-_(u32, /* is_signed */ 0);
-_(u64, /* is_signed */ 0);
-_(i8, /* is_signed */ 1);
-_(i16, /* is_signed */ 1);
-_(i32, /* is_signed */ 1);
-_(i64, /* is_signed */ 1);
-
-#undef _
-
-always_inline uword
-coding_max_n_bits (uword coding)
-{
- uword n_bits;
- (void) zvec_decode (coding, 0, &n_bits);
- return n_bits;
-}
-
-always_inline void
-zvec_decode_inline (uword * zvec,
- uword * zvec_n_bits,
- uword coding,
- void *data,
- uword data_stride,
- uword n_data, uword data_bytes, uword is_signed)
-{
- uword i, n_max;
-
- i = *zvec_n_bits;
- n_max = coding_max_n_bits (coding);
- while (n_data >= 1)
- {
- uword d0, z0, l0;
-
- z0 = clib_bitmap_get_multiple (zvec, i, n_max);
- d0 = zvec_decode (coding, z0, &l0);
- i += l0;
- put_data (data + 0 * data_stride, data_bytes, is_signed, d0);
- data += 1 * data_stride;
- n_data -= 1;
- }
- *zvec_n_bits = i;
-}
-
-#define _(TYPE,IS_SIGNED) \
- void zvec_decode_##TYPE (uword * zvec, \
- uword * zvec_n_bits, \
- uword coding, \
- void * data, \
- uword data_stride, \
- uword n_data) \
- { \
- return zvec_decode_inline (zvec, zvec_n_bits, \
- coding, \
- data, data_stride, n_data, \
- /* data_bytes */ sizeof (TYPE), \
- /* is_signed */ IS_SIGNED); \
- }
-
-_(u8, /* is_signed */ 0);
-_(u16, /* is_signed */ 0);
-_(u32, /* is_signed */ 0);
-_(u64, /* is_signed */ 0);
-_(i8, /* is_signed */ 1);
-_(i16, /* is_signed */ 1);
-_(i32, /* is_signed */ 1);
-_(i64, /* is_signed */ 1);
-
-#undef _
-
-/* Compute number of bits needed to encode given histogram. */
-static uword
-zvec_coding_bits (uword coding, uword * histogram_counts, uword min_bits)
-{
- uword n_type_bits, n_bits;
- uword this_count, last_count, max_count_index;
- uword i, b, l;
-
- n_bits = 0;
- n_type_bits = 1;
- last_count = 0;
- max_count_index = vec_len (histogram_counts) - 1;
-
- /* Coding is not large enough to encode given data. */
- if (coding <= max_count_index)
- return ~0;
-
- i = 0;
- while (coding != 0)
- {
- b = first_set (coding);
- l = min_log2 (b);
- i += b;
-
- this_count =
- histogram_counts[i > max_count_index ? max_count_index : i - 1];
-
- /* No more data to encode? */
- if (this_count == last_count)
- break;
-
- /* Last coding is i 0 ... 0 so we don't need an extra type bit. */
- if (coding == b)
- n_type_bits--;
-
- n_bits += (this_count - last_count) * (n_type_bits + l);
-
- /* This coding cannot be minimal: so return. */
- if (n_bits >= min_bits)
- return ~0;
-
- last_count = this_count;
- coding ^= b;
- n_type_bits++;
- }
-
- return n_bits;
-}
-
-uword
-_zvec_coding_from_histogram (void *histogram,
- uword histogram_len,
- uword histogram_elt_count_offset,
- uword histogram_elt_bytes,
- uword max_value_to_encode,
- zvec_coding_info_t * coding_return)
-{
- uword coding, min_coding;
- uword min_coding_bits, coding_bits;
- uword i, n_bits_set, total_count;
- uword *counts;
- zvec_histogram_count_t *h_count = histogram + histogram_elt_count_offset;
-
- if (histogram_len < 1)
- {
- coding_return->coding = 0;
- coding_return->min_coding_bits = 0;
- coding_return->n_data = 0;
- coding_return->n_codes = 0;
- coding_return->ave_coding_bits = 0;
- return 0;
- }
-
- total_count = 0;
- counts = vec_new (uword, histogram_len);
- for (i = 0; i < histogram_len; i++)
- {
- zvec_histogram_count_t this_count = h_count[0];
- total_count += this_count;
- counts[i] = total_count;
- h_count =
- (zvec_histogram_count_t *) ((void *) h_count + histogram_elt_bytes);
- }
-
- min_coding = 0;
- min_coding_bits = ~0;
-
- {
- uword base_coding =
- max_value_to_encode !=
- ~0 ? (1 + max_value_to_encode) : vec_len (counts);
- uword max_coding = max_pow2 (2 * base_coding);
-
- for (n_bits_set = 1; n_bits_set <= 8; n_bits_set++)
- {
- for (coding = pow2_mask (n_bits_set);
- coding < max_coding;
- coding = next_with_same_number_of_set_bits (coding))
- {
- coding_bits = zvec_coding_bits (coding, counts, min_coding_bits);
- if (coding_bits >= min_coding_bits)
- continue;
- min_coding_bits = coding_bits;
- min_coding = coding;
- }
- }
- }
-
- if (coding_return)
- {
- coding_return->coding = min_coding;
- coding_return->min_coding_bits = min_coding_bits;
- coding_return->n_data = total_count;
- coding_return->n_codes = vec_len (counts);
- coding_return->ave_coding_bits =
- (f64) min_coding_bits / (f64) total_count;
- }
-
- vec_free (counts);
-
- return min_coding;
-}
-
-u8 *
-format_zvec_coding (u8 * s, va_list * args)
-{
- zvec_coding_info_t *c = va_arg (*args, zvec_coding_info_t *);
- return format (s,
- "zvec coding 0x%x, %d elts, %d codes, %d bits total, %.4f ave bits/code",
- c->coding, c->n_data, c->n_codes, c->min_coding_bits,
- c->ave_coding_bits);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vppinfra/zvec.h b/src/vppinfra/zvec.h
deleted file mode 100644
index 7d35a3fe41f..00000000000
--- a/src/vppinfra/zvec.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (c) 2015 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.
- */
-/*
- Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef included_zvec_h
-#define included_zvec_h
-
-#include <vppinfra/clib.h>
-#include <vppinfra/error.h> /* for ASSERT */
-#include <vppinfra/format.h>
-
-/* zvec: compressed vectors.
-
- Data is entropy coded with 32 bit "codings".
-
- Consider coding as bitmap, coding = 2^c_0 + 2^c_1 + ... + 2^c_n
- With c_0 < c_1 < ... < c_n. coding == 0 represents c_n = BITS (uword).
-
- Unsigned integers i = 0 ... are represented as follows:
-
- 0 <= i < 2^c_0 (i << 1) | (1 << 0) binary: i 1
- 2^c_0 <= i < 2^c_0 + 2^c_1 (i << 2) | (1 << 1) binary: i 1 0
- ... binary: i 0 ... 0
-
- Smaller numbers use less bits. Coding is chosen so that encoding
- of given histogram of typical values gives smallest number of bits.
- The number and position of coding bits c_i are used to best fit the
- histogram of typical values.
-*/
-
-typedef struct
-{
- /* Smallest coding for given histogram of typical data. */
- u32 coding;
-
- /* Number of data in histogram. */
- u32 n_data;
-
- /* Number of codes (unique values) in histogram. */
- u32 n_codes;
-
- /* Number of bits in smallest coding of data. */
- u32 min_coding_bits;
-
- /* Average number of bits per code. */
- f64 ave_coding_bits;
-} zvec_coding_info_t;
-
-/* Encode/decode data. */
-uword zvec_encode (uword coding, uword data, uword * n_result_bits);
-uword zvec_decode (uword coding, uword zdata, uword * n_zdata_bits);
-
-format_function_t format_zvec_coding;
-
-typedef u32 zvec_histogram_count_t;
-
-#define zvec_coding_from_histogram(h,count_field,len,max_value_to_encode,zc) \
- _zvec_coding_from_histogram ((h), (len), \
- STRUCT_OFFSET_OF_VAR (h, count_field), \
- sizeof (h[0]), \
- max_value_to_encode, \
- (zc))
-
-uword
-_zvec_coding_from_histogram (void *_histogram,
- uword histogram_len,
- uword histogram_elt_count_offset,
- uword histogram_elt_bytes,
- uword max_value_to_encode,
- zvec_coding_info_t * coding_info_return);
-
-#define _(TYPE,IS_SIGNED) \
- uword * zvec_encode_##TYPE (uword * zvec, uword * zvec_n_bits, uword coding, \
- void * data, uword data_stride, uword n_data);
-
-_(u8, /* is_signed */ 0);
-_(u16, /* is_signed */ 0);
-_(u32, /* is_signed */ 0);
-_(u64, /* is_signed */ 0);
-_(i8, /* is_signed */ 1);
-_(i16, /* is_signed */ 1);
-_(i32, /* is_signed */ 1);
-_(i64, /* is_signed */ 1);
-
-#undef _
-
-#define _(TYPE,IS_SIGNED) \
- void zvec_decode_##TYPE (uword * zvec, \
- uword * zvec_n_bits, \
- uword coding, \
- void * data, \
- uword data_stride, \
- uword n_data)
-
-_(u8, /* is_signed */ 0);
-_(u16, /* is_signed */ 0);
-_(u32, /* is_signed */ 0);
-_(u64, /* is_signed */ 0);
-_(i8, /* is_signed */ 1);
-_(i16, /* is_signed */ 1);
-_(i32, /* is_signed */ 1);
-_(i64, /* is_signed */ 1);
-
-#undef _
-
-/* Signed <=> unsigned conversion.
- -1, -2, -3, ... => 1, 3, 5, ... odds
- 0, +1, +2, +3, ... => 0, 2, 4, 6, ... evens */
-always_inline uword
-zvec_signed_to_unsigned (word s)
-{
- uword a = s < 0;
- s = 2 * s + a;
- return a ? -s : s;
-}
-
-always_inline word
-zvec_unsigned_to_signed (uword u)
-{
- uword a = u & 1;
- u >>= 1;
- return a ? -u : u;
-}
-
-#endif /* included_zvec_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */