diff options
author | C.J. Collier <cjcollier@linuxfoundation.org> | 2016-06-14 07:54:47 -0700 |
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committer | C.J. Collier <cjcollier@linuxfoundation.org> | 2016-06-14 07:55:43 -0700 |
commit | 5129044dce1f85ce4950f31bcf90f3886466f06a (patch) | |
tree | 1c6269614c0c15ffef8451c58ae8f8b30a1bc804 /lib/librte_table/rte_table_hash_key8.c | |
parent | e04be89c2409570e0055b2cda60bd11395bb93b0 (diff) |
Imported upstream release 16.04
* gbp import-orig ../dpdk-16.04.tar.xz
Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>
Diffstat (limited to 'lib/librte_table/rte_table_hash_key8.c')
-rw-r--r-- | lib/librte_table/rte_table_hash_key8.c | 1471 |
1 files changed, 1471 insertions, 0 deletions
diff --git a/lib/librte_table/rte_table_hash_key8.c b/lib/librte_table/rte_table_hash_key8.c new file mode 100644 index 00000000..e2e2bdc4 --- /dev/null +++ b/lib/librte_table/rte_table_hash_key8.c @@ -0,0 +1,1471 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include <string.h> +#include <stdio.h> + +#include <rte_common.h> +#include <rte_mbuf.h> +#include <rte_memory.h> +#include <rte_malloc.h> +#include <rte_log.h> + +#include "rte_table_hash.h" +#include "rte_lru.h" + +#define RTE_TABLE_HASH_KEY_SIZE 8 + +#ifdef RTE_TABLE_STATS_COLLECT + +#define RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(table, val) \ + table->stats.n_pkts_in += val +#define RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(table, val) \ + table->stats.n_pkts_lookup_miss += val + +#else + +#define RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(table, val) +#define RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(table, val) + +#endif + +struct rte_bucket_4_8 { + /* Cache line 0 */ + uint64_t signature; + uint64_t lru_list; + struct rte_bucket_4_8 *next; + uint64_t next_valid; + + uint64_t key[4]; + + /* Cache line 1 */ + uint8_t data[0]; +}; + +struct rte_table_hash { + struct rte_table_stats stats; + + /* Input parameters */ + uint32_t n_buckets; + uint32_t n_entries_per_bucket; + uint32_t key_size; + uint32_t entry_size; + uint32_t bucket_size; + uint32_t signature_offset; + uint32_t key_offset; + uint64_t key_mask; + rte_table_hash_op_hash f_hash; + uint64_t seed; + + /* Extendible buckets */ + uint32_t n_buckets_ext; + uint32_t stack_pos; + uint32_t *stack; + + /* Lookup table */ + uint8_t memory[0] __rte_cache_aligned; +}; + +static int +check_params_create_lru(struct rte_table_hash_key8_lru_params *params) { + /* n_entries */ + if (params->n_entries == 0) { + RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__); + return -EINVAL; + } + + /* f_hash */ + if (params->f_hash == NULL) { + RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n", + __func__); + return -EINVAL; + } + + return 0; +} + +static void * +rte_table_hash_create_key8_lru(void *params, int socket_id, uint32_t entry_size) +{ + struct rte_table_hash_key8_lru_params *p = + (struct rte_table_hash_key8_lru_params *) params; + struct rte_table_hash *f; + uint32_t n_buckets, n_entries_per_bucket, key_size, bucket_size_cl; + uint32_t total_size, i; + + /* Check input parameters */ + if ((check_params_create_lru(p) != 0) || + ((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) || + ((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0)) { + return NULL; + } + n_entries_per_bucket = 4; + key_size = 8; + + /* Memory allocation */ + n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) / + n_entries_per_bucket); + bucket_size_cl = (sizeof(struct rte_bucket_4_8) + n_entries_per_bucket * + entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE; + total_size = sizeof(struct rte_table_hash) + n_buckets * + bucket_size_cl * RTE_CACHE_LINE_SIZE; + + f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id); + if (f == NULL) { + RTE_LOG(ERR, TABLE, + "%s: Cannot allocate %u bytes for hash table\n", + __func__, total_size); + return NULL; + } + RTE_LOG(INFO, TABLE, + "%s: Hash table memory footprint is %u bytes\n", + __func__, total_size); + + /* Memory initialization */ + f->n_buckets = n_buckets; + f->n_entries_per_bucket = n_entries_per_bucket; + f->key_size = key_size; + f->entry_size = entry_size; + f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE; + f->signature_offset = p->signature_offset; + f->key_offset = p->key_offset; + f->f_hash = p->f_hash; + f->seed = p->seed; + + if (p->key_mask != NULL) + f->key_mask = ((uint64_t *)p->key_mask)[0]; + else + f->key_mask = 0xFFFFFFFFFFFFFFFFLLU; + + for (i = 0; i < n_buckets; i++) { + struct rte_bucket_4_8 *bucket; + + bucket = (struct rte_bucket_4_8 *) &f->memory[i * + f->bucket_size]; + bucket->lru_list = 0x0000000100020003LLU; + } + + return f; +} + +static int +rte_table_hash_free_key8_lru(void *table) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + + /* Check input parameters */ + if (f == NULL) { + RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__); + return -EINVAL; + } + + rte_free(f); + return 0; +} + +static int +rte_table_hash_entry_add_key8_lru( + void *table, + void *key, + void *entry, + int *key_found, + void **entry_ptr) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket; + uint64_t signature, mask, pos; + uint32_t bucket_index, i; + + signature = f->f_hash(key, f->key_size, f->seed); + bucket_index = signature & (f->n_buckets - 1); + bucket = (struct rte_bucket_4_8 *) + &f->memory[bucket_index * f->bucket_size]; + + /* Key is present in the bucket */ + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + uint64_t bucket_key = bucket->key[i]; + + if ((bucket_signature & mask) && + (*((uint64_t *) key) == bucket_key)) { + uint8_t *bucket_data = &bucket->data[i * f->entry_size]; + + memcpy(bucket_data, entry, f->entry_size); + lru_update(bucket, i); + *key_found = 1; + *entry_ptr = (void *) bucket_data; + return 0; + } + } + + /* Key is not present in the bucket */ + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + + if ((bucket_signature & mask) == 0) { + uint8_t *bucket_data = &bucket->data[i * f->entry_size]; + + bucket->signature |= mask; + bucket->key[i] = *((uint64_t *) key); + memcpy(bucket_data, entry, f->entry_size); + lru_update(bucket, i); + *key_found = 0; + *entry_ptr = (void *) bucket_data; + + return 0; + } + } + + /* Bucket full: replace LRU entry */ + pos = lru_pos(bucket); + bucket->key[pos] = *((uint64_t *) key); + memcpy(&bucket->data[pos * f->entry_size], entry, f->entry_size); + lru_update(bucket, pos); + *key_found = 0; + *entry_ptr = (void *) &bucket->data[pos * f->entry_size]; + + return 0; +} + +static int +rte_table_hash_entry_delete_key8_lru( + void *table, + void *key, + int *key_found, + void *entry) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket; + uint64_t signature, mask; + uint32_t bucket_index, i; + + signature = f->f_hash(key, f->key_size, f->seed); + bucket_index = signature & (f->n_buckets - 1); + bucket = (struct rte_bucket_4_8 *) + &f->memory[bucket_index * f->bucket_size]; + + /* Key is present in the bucket */ + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + uint64_t bucket_key = bucket->key[i]; + + if ((bucket_signature & mask) && + (*((uint64_t *) key) == bucket_key)) { + uint8_t *bucket_data = &bucket->data[i * f->entry_size]; + + bucket->signature &= ~mask; + *key_found = 1; + if (entry) + memcpy(entry, bucket_data, f->entry_size); + + return 0; + } + } + + /* Key is not present in the bucket */ + *key_found = 0; + return 0; +} + +static int +check_params_create_ext(struct rte_table_hash_key8_ext_params *params) { + /* n_entries */ + if (params->n_entries == 0) { + RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__); + return -EINVAL; + } + + /* n_entries_ext */ + if (params->n_entries_ext == 0) { + RTE_LOG(ERR, TABLE, "%s: n_entries_ext is zero\n", __func__); + return -EINVAL; + } + + /* f_hash */ + if (params->f_hash == NULL) { + RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n", + __func__); + return -EINVAL; + } + + return 0; +} + +static void * +rte_table_hash_create_key8_ext(void *params, int socket_id, uint32_t entry_size) +{ + struct rte_table_hash_key8_ext_params *p = + (struct rte_table_hash_key8_ext_params *) params; + struct rte_table_hash *f; + uint32_t n_buckets, n_buckets_ext, n_entries_per_bucket, key_size; + uint32_t bucket_size_cl, stack_size_cl, total_size, i; + + /* Check input parameters */ + if ((check_params_create_ext(p) != 0) || + ((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) || + ((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0)) + return NULL; + + n_entries_per_bucket = 4; + key_size = 8; + + /* Memory allocation */ + n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) / + n_entries_per_bucket); + n_buckets_ext = (p->n_entries_ext + n_entries_per_bucket - 1) / + n_entries_per_bucket; + bucket_size_cl = (sizeof(struct rte_bucket_4_8) + n_entries_per_bucket * + entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE; + stack_size_cl = (n_buckets_ext * sizeof(uint32_t) + RTE_CACHE_LINE_SIZE - 1) + / RTE_CACHE_LINE_SIZE; + total_size = sizeof(struct rte_table_hash) + ((n_buckets + + n_buckets_ext) * bucket_size_cl + stack_size_cl) * + RTE_CACHE_LINE_SIZE; + + f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id); + if (f == NULL) { + RTE_LOG(ERR, TABLE, + "%s: Cannot allocate %u bytes for hash table\n", + __func__, total_size); + return NULL; + } + RTE_LOG(INFO, TABLE, + "%s: Hash table memory footprint is %u bytes\n", + __func__, total_size); + + /* Memory initialization */ + f->n_buckets = n_buckets; + f->n_entries_per_bucket = n_entries_per_bucket; + f->key_size = key_size; + f->entry_size = entry_size; + f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE; + f->signature_offset = p->signature_offset; + f->key_offset = p->key_offset; + f->f_hash = p->f_hash; + f->seed = p->seed; + + f->n_buckets_ext = n_buckets_ext; + f->stack_pos = n_buckets_ext; + f->stack = (uint32_t *) + &f->memory[(n_buckets + n_buckets_ext) * f->bucket_size]; + + if (p->key_mask != NULL) + f->key_mask = ((uint64_t *)p->key_mask)[0]; + else + f->key_mask = 0xFFFFFFFFFFFFFFFFLLU; + + for (i = 0; i < n_buckets_ext; i++) + f->stack[i] = i; + + return f; +} + +static int +rte_table_hash_free_key8_ext(void *table) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + + /* Check input parameters */ + if (f == NULL) { + RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__); + return -EINVAL; + } + + rte_free(f); + return 0; +} + +static int +rte_table_hash_entry_add_key8_ext( + void *table, + void *key, + void *entry, + int *key_found, + void **entry_ptr) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket0, *bucket, *bucket_prev; + uint64_t signature; + uint32_t bucket_index, i; + + signature = f->f_hash(key, f->key_size, f->seed); + bucket_index = signature & (f->n_buckets - 1); + bucket0 = (struct rte_bucket_4_8 *) + &f->memory[bucket_index * f->bucket_size]; + + /* Key is present in the bucket */ + for (bucket = bucket0; bucket != NULL; bucket = bucket->next) { + uint64_t mask; + + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + uint64_t bucket_key = bucket->key[i]; + + if ((bucket_signature & mask) && + (*((uint64_t *) key) == bucket_key)) { + uint8_t *bucket_data = &bucket->data[i * + f->entry_size]; + + memcpy(bucket_data, entry, f->entry_size); + *key_found = 1; + *entry_ptr = (void *) bucket_data; + return 0; + } + } + } + + /* Key is not present in the bucket */ + for (bucket_prev = NULL, bucket = bucket0; + bucket != NULL; bucket_prev = bucket, bucket = bucket->next) { + uint64_t mask; + + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + + if ((bucket_signature & mask) == 0) { + uint8_t *bucket_data = &bucket->data[i * + f->entry_size]; + + bucket->signature |= mask; + bucket->key[i] = *((uint64_t *) key); + memcpy(bucket_data, entry, f->entry_size); + *key_found = 0; + *entry_ptr = (void *) bucket_data; + + return 0; + } + } + } + + /* Bucket full: extend bucket */ + if (f->stack_pos > 0) { + bucket_index = f->stack[--f->stack_pos]; + + bucket = (struct rte_bucket_4_8 *) &f->memory[(f->n_buckets + + bucket_index) * f->bucket_size]; + bucket_prev->next = bucket; + bucket_prev->next_valid = 1; + + bucket->signature = 1; + bucket->key[0] = *((uint64_t *) key); + memcpy(&bucket->data[0], entry, f->entry_size); + *key_found = 0; + *entry_ptr = (void *) &bucket->data[0]; + return 0; + } + + return -ENOSPC; +} + +static int +rte_table_hash_entry_delete_key8_ext( + void *table, + void *key, + int *key_found, + void *entry) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket0, *bucket, *bucket_prev; + uint64_t signature; + uint32_t bucket_index, i; + + signature = f->f_hash(key, f->key_size, f->seed); + bucket_index = signature & (f->n_buckets - 1); + bucket0 = (struct rte_bucket_4_8 *) + &f->memory[bucket_index * f->bucket_size]; + + /* Key is present in the bucket */ + for (bucket_prev = NULL, bucket = bucket0; bucket != NULL; + bucket_prev = bucket, bucket = bucket->next) { + uint64_t mask; + + for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) { + uint64_t bucket_signature = bucket->signature; + uint64_t bucket_key = bucket->key[i]; + + if ((bucket_signature & mask) && + (*((uint64_t *) key) == bucket_key)) { + uint8_t *bucket_data = &bucket->data[i * + f->entry_size]; + + bucket->signature &= ~mask; + *key_found = 1; + if (entry) + memcpy(entry, bucket_data, + f->entry_size); + + if ((bucket->signature == 0) && + (bucket_prev != NULL)) { + bucket_prev->next = bucket->next; + bucket_prev->next_valid = + bucket->next_valid; + + memset(bucket, 0, + sizeof(struct rte_bucket_4_8)); + bucket_index = (((uint8_t *)bucket - + (uint8_t *)f->memory)/f->bucket_size) - f->n_buckets; + f->stack[f->stack_pos++] = bucket_index; + } + + return 0; + } + } + } + + /* Key is not present in the bucket */ + *key_found = 0; + return 0; +} + +#define lookup_key8_cmp(key_in, bucket, pos) \ +{ \ + uint64_t xor[4], signature; \ + \ + signature = ~bucket->signature; \ + \ + xor[0] = (key_in[0] ^ bucket->key[0]) | (signature & 1);\ + xor[1] = (key_in[0] ^ bucket->key[1]) | (signature & 2);\ + xor[2] = (key_in[0] ^ bucket->key[2]) | (signature & 4);\ + xor[3] = (key_in[0] ^ bucket->key[3]) | (signature & 8);\ + \ + pos = 4; \ + if (xor[0] == 0) \ + pos = 0; \ + if (xor[1] == 0) \ + pos = 1; \ + if (xor[2] == 0) \ + pos = 2; \ + if (xor[3] == 0) \ + pos = 3; \ +} + +#define lookup1_stage0(pkt0_index, mbuf0, pkts, pkts_mask, f) \ +{ \ + uint64_t pkt_mask; \ + uint32_t key_offset = f->key_offset;\ + \ + pkt0_index = __builtin_ctzll(pkts_mask); \ + pkt_mask = 1LLU << pkt0_index; \ + pkts_mask &= ~pkt_mask; \ + \ + mbuf0 = pkts[pkt0_index]; \ + rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf0, key_offset)); \ +} + +#define lookup1_stage1(mbuf1, bucket1, f) \ +{ \ + uint64_t signature; \ + uint32_t bucket_index; \ + \ + signature = RTE_MBUF_METADATA_UINT32(mbuf1, f->signature_offset);\ + bucket_index = signature & (f->n_buckets - 1); \ + bucket1 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket_index * f->bucket_size]; \ + rte_prefetch0(bucket1); \ +} + +#define lookup1_stage1_dosig(mbuf1, bucket1, f) \ +{ \ + uint64_t *key; \ + uint64_t signature; \ + uint32_t bucket_index; \ + uint64_t hash_key_buffer; \ + \ + key = RTE_MBUF_METADATA_UINT64_PTR(mbuf1, f->key_offset);\ + hash_key_buffer = *key & f->key_mask; \ + signature = f->f_hash(&hash_key_buffer, \ + RTE_TABLE_HASH_KEY_SIZE, f->seed); \ + bucket_index = signature & (f->n_buckets - 1); \ + bucket1 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket_index * f->bucket_size]; \ + rte_prefetch0(bucket1); \ +} + +#define lookup1_stage2_lru(pkt2_index, mbuf2, bucket2, \ + pkts_mask_out, entries, f) \ +{ \ + void *a; \ + uint64_t pkt_mask; \ + uint64_t *key; \ + uint32_t pos; \ + uint64_t hash_key_buffer; \ + \ + key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\ + hash_key_buffer = key[0] & f->key_mask; \ + \ + lookup_key8_cmp((&hash_key_buffer), bucket2, pos); \ + \ + pkt_mask = ((bucket2->signature >> pos) & 1LLU) << pkt2_index;\ + pkts_mask_out |= pkt_mask; \ + \ + a = (void *) &bucket2->data[pos * f->entry_size]; \ + rte_prefetch0(a); \ + entries[pkt2_index] = a; \ + lru_update(bucket2, pos); \ +} + +#define lookup1_stage2_ext(pkt2_index, mbuf2, bucket2, pkts_mask_out,\ + entries, buckets_mask, buckets, keys, f) \ +{ \ + struct rte_bucket_4_8 *bucket_next; \ + void *a; \ + uint64_t pkt_mask, bucket_mask; \ + uint64_t *key; \ + uint32_t pos; \ + uint64_t hash_key_buffer; \ + \ + key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\ + hash_key_buffer = *key & f->key_mask; \ + \ + lookup_key8_cmp((&hash_key_buffer), bucket2, pos); \ + \ + pkt_mask = ((bucket2->signature >> pos) & 1LLU) << pkt2_index;\ + pkts_mask_out |= pkt_mask; \ + \ + a = (void *) &bucket2->data[pos * f->entry_size]; \ + rte_prefetch0(a); \ + entries[pkt2_index] = a; \ + \ + bucket_mask = (~pkt_mask) & (bucket2->next_valid << pkt2_index);\ + buckets_mask |= bucket_mask; \ + bucket_next = bucket2->next; \ + buckets[pkt2_index] = bucket_next; \ + keys[pkt2_index] = key; \ +} + +#define lookup_grinder(pkt_index, buckets, keys, pkts_mask_out, entries,\ + buckets_mask, f) \ +{ \ + struct rte_bucket_4_8 *bucket, *bucket_next; \ + void *a; \ + uint64_t pkt_mask, bucket_mask; \ + uint64_t *key; \ + uint32_t pos; \ + uint64_t hash_key_buffer; \ + \ + bucket = buckets[pkt_index]; \ + key = keys[pkt_index]; \ + hash_key_buffer = (*key) & f->key_mask; \ + \ + lookup_key8_cmp((&hash_key_buffer), bucket, pos); \ + \ + pkt_mask = ((bucket->signature >> pos) & 1LLU) << pkt_index;\ + pkts_mask_out |= pkt_mask; \ + \ + a = (void *) &bucket->data[pos * f->entry_size]; \ + rte_prefetch0(a); \ + entries[pkt_index] = a; \ + \ + bucket_mask = (~pkt_mask) & (bucket->next_valid << pkt_index);\ + buckets_mask |= bucket_mask; \ + bucket_next = bucket->next; \ + rte_prefetch0(bucket_next); \ + buckets[pkt_index] = bucket_next; \ + keys[pkt_index] = key; \ +} + +#define lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01,\ + pkts, pkts_mask, f) \ +{ \ + uint64_t pkt00_mask, pkt01_mask; \ + uint32_t key_offset = f->key_offset; \ + \ + pkt00_index = __builtin_ctzll(pkts_mask); \ + pkt00_mask = 1LLU << pkt00_index; \ + pkts_mask &= ~pkt00_mask; \ + \ + mbuf00 = pkts[pkt00_index]; \ + rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\ + \ + pkt01_index = __builtin_ctzll(pkts_mask); \ + pkt01_mask = 1LLU << pkt01_index; \ + pkts_mask &= ~pkt01_mask; \ + \ + mbuf01 = pkts[pkt01_index]; \ + rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\ +} + +#define lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,\ + mbuf00, mbuf01, pkts, pkts_mask, f) \ +{ \ + uint64_t pkt00_mask, pkt01_mask; \ + uint32_t key_offset = f->key_offset; \ + \ + pkt00_index = __builtin_ctzll(pkts_mask); \ + pkt00_mask = 1LLU << pkt00_index; \ + pkts_mask &= ~pkt00_mask; \ + \ + mbuf00 = pkts[pkt00_index]; \ + rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\ + \ + pkt01_index = __builtin_ctzll(pkts_mask); \ + if (pkts_mask == 0) \ + pkt01_index = pkt00_index; \ + \ + pkt01_mask = 1LLU << pkt01_index; \ + pkts_mask &= ~pkt01_mask; \ + \ + mbuf01 = pkts[pkt01_index]; \ + rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\ +} + +#define lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f) \ +{ \ + uint64_t signature10, signature11; \ + uint32_t bucket10_index, bucket11_index; \ + \ + signature10 = RTE_MBUF_METADATA_UINT32(mbuf10, f->signature_offset);\ + bucket10_index = signature10 & (f->n_buckets - 1); \ + bucket10 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket10_index * f->bucket_size]; \ + rte_prefetch0(bucket10); \ + \ + signature11 = RTE_MBUF_METADATA_UINT32(mbuf11, f->signature_offset);\ + bucket11_index = signature11 & (f->n_buckets - 1); \ + bucket11 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket11_index * f->bucket_size]; \ + rte_prefetch0(bucket11); \ +} + +#define lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f)\ +{ \ + uint64_t *key10, *key11; \ + uint64_t hash_offset_buffer10; \ + uint64_t hash_offset_buffer11; \ + uint64_t signature10, signature11; \ + uint32_t bucket10_index, bucket11_index; \ + rte_table_hash_op_hash f_hash = f->f_hash; \ + uint64_t seed = f->seed; \ + uint32_t key_offset = f->key_offset; \ + \ + key10 = RTE_MBUF_METADATA_UINT64_PTR(mbuf10, key_offset);\ + key11 = RTE_MBUF_METADATA_UINT64_PTR(mbuf11, key_offset);\ + hash_offset_buffer10 = *key10 & f->key_mask; \ + hash_offset_buffer11 = *key11 & f->key_mask; \ + \ + signature10 = f_hash(&hash_offset_buffer10, \ + RTE_TABLE_HASH_KEY_SIZE, seed); \ + bucket10_index = signature10 & (f->n_buckets - 1); \ + bucket10 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket10_index * f->bucket_size]; \ + rte_prefetch0(bucket10); \ + \ + signature11 = f_hash(&hash_offset_buffer11, \ + RTE_TABLE_HASH_KEY_SIZE, seed); \ + bucket11_index = signature11 & (f->n_buckets - 1); \ + bucket11 = (struct rte_bucket_4_8 *) \ + &f->memory[bucket11_index * f->bucket_size]; \ + rte_prefetch0(bucket11); \ +} + +#define lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,\ + bucket20, bucket21, pkts_mask_out, entries, f) \ +{ \ + void *a20, *a21; \ + uint64_t pkt20_mask, pkt21_mask; \ + uint64_t *key20, *key21; \ + uint64_t hash_offset_buffer20; \ + uint64_t hash_offset_buffer21; \ + uint32_t pos20, pos21; \ + \ + key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\ + key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\ + hash_offset_buffer20 = *key20 & f->key_mask; \ + hash_offset_buffer21 = *key21 & f->key_mask; \ + \ + lookup_key8_cmp((&hash_offset_buffer20), bucket20, pos20);\ + lookup_key8_cmp((&hash_offset_buffer21), bucket21, pos21);\ + \ + pkt20_mask = ((bucket20->signature >> pos20) & 1LLU) << pkt20_index;\ + pkt21_mask = ((bucket21->signature >> pos21) & 1LLU) << pkt21_index;\ + pkts_mask_out |= pkt20_mask | pkt21_mask; \ + \ + a20 = (void *) &bucket20->data[pos20 * f->entry_size]; \ + a21 = (void *) &bucket21->data[pos21 * f->entry_size]; \ + rte_prefetch0(a20); \ + rte_prefetch0(a21); \ + entries[pkt20_index] = a20; \ + entries[pkt21_index] = a21; \ + lru_update(bucket20, pos20); \ + lru_update(bucket21, pos21); \ +} + +#define lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, bucket20, \ + bucket21, pkts_mask_out, entries, buckets_mask, buckets, keys, f)\ +{ \ + struct rte_bucket_4_8 *bucket20_next, *bucket21_next; \ + void *a20, *a21; \ + uint64_t pkt20_mask, pkt21_mask, bucket20_mask, bucket21_mask;\ + uint64_t *key20, *key21; \ + uint64_t hash_offset_buffer20; \ + uint64_t hash_offset_buffer21; \ + uint32_t pos20, pos21; \ + \ + key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\ + key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\ + hash_offset_buffer20 = *key20 & f->key_mask; \ + hash_offset_buffer21 = *key21 & f->key_mask; \ + \ + lookup_key8_cmp((&hash_offset_buffer20), bucket20, pos20);\ + lookup_key8_cmp((&hash_offset_buffer21), bucket21, pos21);\ + \ + pkt20_mask = ((bucket20->signature >> pos20) & 1LLU) << pkt20_index;\ + pkt21_mask = ((bucket21->signature >> pos21) & 1LLU) << pkt21_index;\ + pkts_mask_out |= pkt20_mask | pkt21_mask; \ + \ + a20 = (void *) &bucket20->data[pos20 * f->entry_size]; \ + a21 = (void *) &bucket21->data[pos21 * f->entry_size]; \ + rte_prefetch0(a20); \ + rte_prefetch0(a21); \ + entries[pkt20_index] = a20; \ + entries[pkt21_index] = a21; \ + \ + bucket20_mask = (~pkt20_mask) & (bucket20->next_valid << pkt20_index);\ + bucket21_mask = (~pkt21_mask) & (bucket21->next_valid << pkt21_index);\ + buckets_mask |= bucket20_mask | bucket21_mask; \ + bucket20_next = bucket20->next; \ + bucket21_next = bucket21->next; \ + buckets[pkt20_index] = bucket20_next; \ + buckets[pkt21_index] = bucket21_next; \ + keys[pkt20_index] = key20; \ + keys[pkt21_index] = key21; \ +} + +static int +rte_table_hash_lookup_key8_lru( + void *table, + struct rte_mbuf **pkts, + uint64_t pkts_mask, + uint64_t *lookup_hit_mask, + void **entries) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21; + struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21; + uint32_t pkt00_index, pkt01_index, pkt10_index, + pkt11_index, pkt20_index, pkt21_index; + uint64_t pkts_mask_out = 0; + + __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask); + RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in); + + /* Cannot run the pipeline with less than 5 packets */ + if (__builtin_popcountll(pkts_mask) < 5) { + for ( ; pkts_mask; ) { + struct rte_bucket_4_8 *bucket; + struct rte_mbuf *mbuf; + uint32_t pkt_index; + + lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f); + lookup1_stage1(mbuf, bucket, f); + lookup1_stage2_lru(pkt_index, mbuf, bucket, + pkts_mask_out, entries, f); + } + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; + } + + /* + * Pipeline fill + * + */ + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline feed */ + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* + * Pipeline run + * + */ + for ( ; pkts_mask; ) { + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0_with_odd_support(pkt00_index, pkt01_index, + mbuf00, mbuf01, pkts, pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + } + + /* + * Pipeline flush + * + */ + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; +} /* rte_table_hash_lookup_key8_lru() */ + +static int +rte_table_hash_lookup_key8_lru_dosig( + void *table, + struct rte_mbuf **pkts, + uint64_t pkts_mask, + uint64_t *lookup_hit_mask, + void **entries) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21; + struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21; + uint32_t pkt00_index, pkt01_index, pkt10_index; + uint32_t pkt11_index, pkt20_index, pkt21_index; + uint64_t pkts_mask_out = 0; + + __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask); + RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in); + + /* Cannot run the pipeline with less than 5 packets */ + if (__builtin_popcountll(pkts_mask) < 5) { + for ( ; pkts_mask; ) { + struct rte_bucket_4_8 *bucket; + struct rte_mbuf *mbuf; + uint32_t pkt_index; + + lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f); + lookup1_stage1_dosig(mbuf, bucket, f); + lookup1_stage2_lru(pkt_index, mbuf, bucket, + pkts_mask_out, entries, f); + } + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; + } + + /* + * Pipeline fill + * + */ + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline feed */ + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* + * Pipeline run + * + */ + for ( ; pkts_mask; ) { + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0_with_odd_support(pkt00_index, pkt01_index, + mbuf00, mbuf01, pkts, pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + } + + /* + * Pipeline flush + * + */ + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + + /* Pipeline stage 2 */ + lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, f); + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; +} /* rte_table_hash_lookup_key8_lru_dosig() */ + +static int +rte_table_hash_lookup_key8_ext( + void *table, + struct rte_mbuf **pkts, + uint64_t pkts_mask, + uint64_t *lookup_hit_mask, + void **entries) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21; + struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21; + uint32_t pkt00_index, pkt01_index, pkt10_index; + uint32_t pkt11_index, pkt20_index, pkt21_index; + uint64_t pkts_mask_out = 0, buckets_mask = 0; + struct rte_bucket_4_8 *buckets[RTE_PORT_IN_BURST_SIZE_MAX]; + uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX]; + + __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask); + RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in); + + /* Cannot run the pipeline with less than 5 packets */ + if (__builtin_popcountll(pkts_mask) < 5) { + for ( ; pkts_mask; ) { + struct rte_bucket_4_8 *bucket; + struct rte_mbuf *mbuf; + uint32_t pkt_index; + + lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f); + lookup1_stage1(mbuf, bucket, f); + lookup1_stage2_ext(pkt_index, mbuf, bucket, + pkts_mask_out, entries, buckets_mask, buckets, + keys, f); + } + + goto grind_next_buckets; + } + + /* + * Pipeline fill + * + */ + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline feed */ + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* + * Pipeline run + * + */ + for ( ; pkts_mask; ) { + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0_with_odd_support(pkt00_index, pkt01_index, + mbuf00, mbuf01, pkts, pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + } + + /* + * Pipeline flush + * + */ + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 1 */ + lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + +grind_next_buckets: + /* Grind next buckets */ + for ( ; buckets_mask; ) { + uint64_t buckets_mask_next = 0; + + for ( ; buckets_mask; ) { + uint64_t pkt_mask; + uint32_t pkt_index; + + pkt_index = __builtin_ctzll(buckets_mask); + pkt_mask = 1LLU << pkt_index; + buckets_mask &= ~pkt_mask; + + lookup_grinder(pkt_index, buckets, keys, pkts_mask_out, + entries, buckets_mask_next, f); + } + + buckets_mask = buckets_mask_next; + } + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; +} /* rte_table_hash_lookup_key8_ext() */ + +static int +rte_table_hash_lookup_key8_ext_dosig( + void *table, + struct rte_mbuf **pkts, + uint64_t pkts_mask, + uint64_t *lookup_hit_mask, + void **entries) +{ + struct rte_table_hash *f = (struct rte_table_hash *) table; + struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21; + struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21; + uint32_t pkt00_index, pkt01_index, pkt10_index; + uint32_t pkt11_index, pkt20_index, pkt21_index; + uint64_t pkts_mask_out = 0, buckets_mask = 0; + struct rte_bucket_4_8 *buckets[RTE_PORT_IN_BURST_SIZE_MAX]; + uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX]; + + __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask); + RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in); + + /* Cannot run the pipeline with less than 5 packets */ + if (__builtin_popcountll(pkts_mask) < 5) { + for ( ; pkts_mask; ) { + struct rte_bucket_4_8 *bucket; + struct rte_mbuf *mbuf; + uint32_t pkt_index; + + lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f); + lookup1_stage1_dosig(mbuf, bucket, f); + lookup1_stage2_ext(pkt_index, mbuf, bucket, + pkts_mask_out, entries, buckets_mask, + buckets, keys, f); + } + + goto grind_next_buckets; + } + + /* + * Pipeline fill + * + */ + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline feed */ + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts, + pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* + * Pipeline run + * + */ + for ( ; pkts_mask; ) { + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 0 */ + lookup2_stage0_with_odd_support(pkt00_index, pkt01_index, + mbuf00, mbuf01, pkts, pkts_mask, f); + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + } + + /* + * Pipeline flush + * + */ + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + mbuf10 = mbuf00; + mbuf11 = mbuf01; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + pkt10_index = pkt00_index; + pkt11_index = pkt01_index; + + /* Pipeline stage 1 */ + lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f); + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + + /* Pipeline feed */ + bucket20 = bucket10; + bucket21 = bucket11; + mbuf20 = mbuf10; + mbuf21 = mbuf11; + pkt20_index = pkt10_index; + pkt21_index = pkt11_index; + + /* Pipeline stage 2 */ + lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, + bucket20, bucket21, pkts_mask_out, entries, + buckets_mask, buckets, keys, f); + +grind_next_buckets: + /* Grind next buckets */ + for ( ; buckets_mask; ) { + uint64_t buckets_mask_next = 0; + + for ( ; buckets_mask; ) { + uint64_t pkt_mask; + uint32_t pkt_index; + + pkt_index = __builtin_ctzll(buckets_mask); + pkt_mask = 1LLU << pkt_index; + buckets_mask &= ~pkt_mask; + + lookup_grinder(pkt_index, buckets, keys, pkts_mask_out, + entries, buckets_mask_next, f); + } + + buckets_mask = buckets_mask_next; + } + + *lookup_hit_mask = pkts_mask_out; + RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out)); + return 0; +} /* rte_table_hash_lookup_key8_dosig_ext() */ + +static int +rte_table_hash_key8_stats_read(void *table, struct rte_table_stats *stats, int clear) +{ + struct rte_table_hash *t = (struct rte_table_hash *) table; + + if (stats != NULL) + memcpy(stats, &t->stats, sizeof(t->stats)); + + if (clear) + memset(&t->stats, 0, sizeof(t->stats)); + + return 0; +} + +struct rte_table_ops rte_table_hash_key8_lru_ops = { + .f_create = rte_table_hash_create_key8_lru, + .f_free = rte_table_hash_free_key8_lru, + .f_add = rte_table_hash_entry_add_key8_lru, + .f_delete = rte_table_hash_entry_delete_key8_lru, + .f_add_bulk = NULL, + .f_delete_bulk = NULL, + .f_lookup = rte_table_hash_lookup_key8_lru, + .f_stats = rte_table_hash_key8_stats_read, +}; + +struct rte_table_ops rte_table_hash_key8_lru_dosig_ops = { + .f_create = rte_table_hash_create_key8_lru, + .f_free = rte_table_hash_free_key8_lru, + .f_add = rte_table_hash_entry_add_key8_lru, + .f_delete = rte_table_hash_entry_delete_key8_lru, + .f_add_bulk = NULL, + .f_delete_bulk = NULL, + .f_lookup = rte_table_hash_lookup_key8_lru_dosig, + .f_stats = rte_table_hash_key8_stats_read, +}; + +struct rte_table_ops rte_table_hash_key8_ext_ops = { + .f_create = rte_table_hash_create_key8_ext, + .f_free = rte_table_hash_free_key8_ext, + .f_add = rte_table_hash_entry_add_key8_ext, + .f_delete = rte_table_hash_entry_delete_key8_ext, + .f_add_bulk = NULL, + .f_delete_bulk = NULL, + .f_lookup = rte_table_hash_lookup_key8_ext, + .f_stats = rte_table_hash_key8_stats_read, +}; + +struct rte_table_ops rte_table_hash_key8_ext_dosig_ops = { + .f_create = rte_table_hash_create_key8_ext, + .f_free = rte_table_hash_free_key8_ext, + .f_add = rte_table_hash_entry_add_key8_ext, + .f_delete = rte_table_hash_entry_delete_key8_ext, + .f_add_bulk = NULL, + .f_delete_bulk = NULL, + .f_lookup = rte_table_hash_lookup_key8_ext_dosig, + .f_stats = rte_table_hash_key8_stats_read, +}; |