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