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37 #include <rte_common.h>
39 #include <rte_memory.h>
40 #include <rte_malloc.h>
43 #include "rte_table_array.h"
45 #ifdef RTE_TABLE_STATS_COLLECT
47 #define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val) \
48 table->stats.n_pkts_in += val
49 #define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val) \
50 table->stats.n_pkts_lookup_miss += val
54 #define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val)
55 #define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val)
59 struct rte_table_array {
60 struct rte_table_stats stats;
62 /* Input parameters */
68 uint32_t entry_pos_mask;
71 uint8_t array[0] __rte_cache_aligned;
72 } __rte_cache_aligned;
75 rte_table_array_create(void *params, int socket_id, uint32_t entry_size)
77 struct rte_table_array_params *p =
78 (struct rte_table_array_params *) params;
79 struct rte_table_array *t;
80 uint32_t total_cl_size, total_size;
82 /* Check input parameters */
84 (p->n_entries == 0) ||
85 (!rte_is_power_of_2(p->n_entries)))
88 /* Memory allocation */
89 total_cl_size = (sizeof(struct rte_table_array) +
90 RTE_CACHE_LINE_SIZE) / RTE_CACHE_LINE_SIZE;
91 total_cl_size += (p->n_entries * entry_size +
92 RTE_CACHE_LINE_SIZE) / RTE_CACHE_LINE_SIZE;
93 total_size = total_cl_size * RTE_CACHE_LINE_SIZE;
94 t = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
97 "%s: Cannot allocate %u bytes for array table\n",
98 __func__, total_size);
102 /* Memory initialization */
103 t->entry_size = entry_size;
104 t->n_entries = p->n_entries;
105 t->offset = p->offset;
106 t->entry_pos_mask = t->n_entries - 1;
112 rte_table_array_free(void *table)
114 struct rte_table_array *t = (struct rte_table_array *) table;
116 /* Check input parameters */
118 RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
122 /* Free previously allocated resources */
129 rte_table_array_entry_add(
136 struct rte_table_array *t = (struct rte_table_array *) table;
137 struct rte_table_array_key *k = (struct rte_table_array_key *) key;
138 uint8_t *table_entry;
140 /* Check input parameters */
142 RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
146 RTE_LOG(ERR, TABLE, "%s: key parameter is NULL\n", __func__);
150 RTE_LOG(ERR, TABLE, "%s: entry parameter is NULL\n", __func__);
153 if (key_found == NULL) {
154 RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
158 if (entry_ptr == NULL) {
159 RTE_LOG(ERR, TABLE, "%s: entry_ptr parameter is NULL\n",
164 table_entry = &t->array[k->pos * t->entry_size];
165 memcpy(table_entry, entry, t->entry_size);
167 *entry_ptr = (void *) table_entry;
173 rte_table_array_lookup(
175 struct rte_mbuf **pkts,
177 uint64_t *lookup_hit_mask,
180 struct rte_table_array *t = (struct rte_table_array *) table;
181 __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
182 RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(t, n_pkts_in);
183 *lookup_hit_mask = pkts_mask;
185 if ((pkts_mask & (pkts_mask + 1)) == 0) {
186 uint64_t n_pkts = __builtin_popcountll(pkts_mask);
189 for (i = 0; i < n_pkts; i++) {
190 struct rte_mbuf *pkt = pkts[i];
191 uint32_t entry_pos = RTE_MBUF_METADATA_UINT32(pkt,
192 t->offset) & t->entry_pos_mask;
194 entries[i] = (void *) &t->array[entry_pos *
198 for ( ; pkts_mask; ) {
199 uint32_t pkt_index = __builtin_ctzll(pkts_mask);
200 uint64_t pkt_mask = 1LLU << pkt_index;
201 struct rte_mbuf *pkt = pkts[pkt_index];
202 uint32_t entry_pos = RTE_MBUF_METADATA_UINT32(pkt,
203 t->offset) & t->entry_pos_mask;
205 entries[pkt_index] = (void *) &t->array[entry_pos *
207 pkts_mask &= ~pkt_mask;
215 rte_table_array_stats_read(void *table, struct rte_table_stats *stats, int clear)
217 struct rte_table_array *array = (struct rte_table_array *) table;
220 memcpy(stats, &array->stats, sizeof(array->stats));
223 memset(&array->stats, 0, sizeof(array->stats));
228 struct rte_table_ops rte_table_array_ops = {
229 .f_create = rte_table_array_create,
230 .f_free = rte_table_array_free,
231 .f_add = rte_table_array_entry_add,
234 .f_delete_bulk = NULL,
235 .f_lookup = rte_table_array_lookup,
236 .f_stats = rte_table_array_stats_read,