1
2
3
4
5#include <stdio.h>
6#include <rte_mempool.h>
7#include <rte_stack.h>
8
9static int
10__stack_alloc(struct rte_mempool *mp, uint32_t flags)
11{
12 char name[RTE_STACK_NAMESIZE];
13 struct rte_stack *s;
14 int ret;
15
16 ret = snprintf(name, sizeof(name),
17 RTE_MEMPOOL_MZ_FORMAT, mp->name);
18 if (ret < 0 || ret >= (int)sizeof(name)) {
19 rte_errno = ENAMETOOLONG;
20 return -rte_errno;
21 }
22
23 s = rte_stack_create(name, mp->size, mp->socket_id, flags);
24 if (s == NULL)
25 return -rte_errno;
26
27 mp->pool_data = s;
28
29 return 0;
30}
31
32static int
33stack_alloc(struct rte_mempool *mp)
34{
35 return __stack_alloc(mp, 0);
36}
37
38static int
39lf_stack_alloc(struct rte_mempool *mp)
40{
41 return __stack_alloc(mp, RTE_STACK_F_LF);
42}
43
44static int
45stack_enqueue(struct rte_mempool *mp, void * const *obj_table,
46 unsigned int n)
47{
48 struct rte_stack *s = mp->pool_data;
49
50 return rte_stack_push(s, obj_table, n) == 0 ? -ENOBUFS : 0;
51}
52
53static int
54stack_dequeue(struct rte_mempool *mp, void **obj_table,
55 unsigned int n)
56{
57 struct rte_stack *s = mp->pool_data;
58
59 return rte_stack_pop(s, obj_table, n) == 0 ? -ENOBUFS : 0;
60}
61
62static unsigned
63stack_get_count(const struct rte_mempool *mp)
64{
65 struct rte_stack *s = mp->pool_data;
66
67 return rte_stack_count(s);
68}
69
70static void
71stack_free(struct rte_mempool *mp)
72{
73 struct rte_stack *s = mp->pool_data;
74
75 rte_stack_free(s);
76}
77
78static struct rte_mempool_ops ops_stack = {
79 .name = "stack",
80 .alloc = stack_alloc,
81 .free = stack_free,
82 .enqueue = stack_enqueue,
83 .dequeue = stack_dequeue,
84 .get_count = stack_get_count
85};
86
87static struct rte_mempool_ops ops_lf_stack = {
88 .name = "lf_stack",
89 .alloc = lf_stack_alloc,
90 .free = stack_free,
91 .enqueue = stack_enqueue,
92 .dequeue = stack_dequeue,
93 .get_count = stack_get_count
94};
95
96MEMPOOL_REGISTER_OPS(ops_stack);
97MEMPOOL_REGISTER_OPS(ops_lf_stack);
98
