1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
3 */
4
5 #include <string.h>
6
7 #include <rte_malloc.h>
8
9 #include "rte_table_stub.h"
10
11 #include "table_log.h"
12
13 #ifdef RTE_TABLE_STATS_COLLECT
14
15 #define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val) \
16 table->stats.n_pkts_in += val
17 #define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val) \
18 table->stats.n_pkts_lookup_miss += val
19
20 #else
21
22 #define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val)
23 #define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val)
24
25 #endif
26
27 struct rte_table_stub {
28 struct rte_table_stats stats;
29 };
30
31 static void *
rte_table_stub_create(__rte_unused void * params,__rte_unused int socket_id,__rte_unused uint32_t entry_size)32 rte_table_stub_create(__rte_unused void *params,
33 __rte_unused int socket_id,
34 __rte_unused uint32_t entry_size)
35 {
36 struct rte_table_stub *stub;
37 uint32_t size;
38
39 size = sizeof(struct rte_table_stub);
40 stub = rte_zmalloc_socket("TABLE", size, RTE_CACHE_LINE_SIZE,
41 socket_id);
42 if (stub == NULL) {
43 TABLE_LOG(ERR,
44 "%s: Cannot allocate %u bytes for stub table",
45 __func__, size);
46 return NULL;
47 }
48
49 return stub;
50 }
51
52 static int
rte_table_stub_lookup(__rte_unused void * table,__rte_unused struct rte_mbuf ** pkts,__rte_unused uint64_t pkts_mask,uint64_t * lookup_hit_mask,__rte_unused void ** entries)53 rte_table_stub_lookup(
54 __rte_unused void *table,
55 __rte_unused struct rte_mbuf **pkts,
56 __rte_unused uint64_t pkts_mask,
57 uint64_t *lookup_hit_mask,
58 __rte_unused void **entries)
59 {
60 __rte_unused struct rte_table_stub *stub = (struct rte_table_stub *) table;
61 __rte_unused uint32_t n_pkts_in = rte_popcount64(pkts_mask);
62
63 RTE_TABLE_LPM_STATS_PKTS_IN_ADD(stub, n_pkts_in);
64 *lookup_hit_mask = 0;
65 RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(stub, n_pkts_in);
66
67 return 0;
68 }
69
70 static int
rte_table_stub_stats_read(void * table,struct rte_table_stats * stats,int clear)71 rte_table_stub_stats_read(void *table, struct rte_table_stats *stats, int clear)
72 {
73 struct rte_table_stub *t = table;
74
75 if (stats != NULL)
76 memcpy(stats, &t->stats, sizeof(t->stats));
77
78 if (clear)
79 memset(&t->stats, 0, sizeof(t->stats));
80
81 return 0;
82 }
83
84 struct rte_table_ops rte_table_stub_ops = {
85 .f_create = rte_table_stub_create,
86 .f_free = NULL,
87 .f_add = NULL,
88 .f_delete = NULL,
89 .f_add_bulk = NULL,
90 .f_delete_bulk = NULL,
91 .f_lookup = rte_table_stub_lookup,
92 .f_stats = rte_table_stub_stats_read,
93 };
94