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38 #include <rte_mempool.h>
39 #include <rte_errno.h>
41 /* indirect jump table to support external memory pools. */
42 struct rte_mempool_ops_table rte_mempool_ops_table = {
43 .sl = RTE_SPINLOCK_INITIALIZER,
47 /* add a new ops struct in rte_mempool_ops_table, return its index. */
49 rte_mempool_register_ops(const struct rte_mempool_ops *h)
51 struct rte_mempool_ops *ops;
54 rte_spinlock_lock(&rte_mempool_ops_table.sl);
56 if (rte_mempool_ops_table.num_ops >=
57 RTE_MEMPOOL_MAX_OPS_IDX) {
58 rte_spinlock_unlock(&rte_mempool_ops_table.sl);
60 "Maximum number of mempool ops structs exceeded\n");
64 if (h->alloc == NULL || h->enqueue == NULL ||
65 h->dequeue == NULL || h->get_count == NULL) {
66 rte_spinlock_unlock(&rte_mempool_ops_table.sl);
68 "Missing callback while registering mempool ops\n");
72 if (strlen(h->name) >= sizeof(ops->name) - 1) {
73 rte_spinlock_unlock(&rte_mempool_ops_table.sl);
74 RTE_LOG(DEBUG, EAL, "%s(): mempool_ops <%s>: name too long\n",
80 ops_index = rte_mempool_ops_table.num_ops++;
81 ops = &rte_mempool_ops_table.ops[ops_index];
82 snprintf(ops->name, sizeof(ops->name), "%s", h->name);
83 ops->alloc = h->alloc;
85 ops->enqueue = h->enqueue;
86 ops->dequeue = h->dequeue;
87 ops->get_count = h->get_count;
89 rte_spinlock_unlock(&rte_mempool_ops_table.sl);
94 /* wrapper to allocate an external mempool's private (pool) data. */
96 rte_mempool_ops_alloc(struct rte_mempool *mp)
98 struct rte_mempool_ops *ops;
100 ops = rte_mempool_get_ops(mp->ops_index);
101 return ops->alloc(mp);
104 /* wrapper to free an external pool ops. */
106 rte_mempool_ops_free(struct rte_mempool *mp)
108 struct rte_mempool_ops *ops;
110 ops = rte_mempool_get_ops(mp->ops_index);
111 if (ops->free == NULL)
116 /* wrapper to get available objects in an external mempool. */
118 rte_mempool_ops_get_count(const struct rte_mempool *mp)
120 struct rte_mempool_ops *ops;
122 ops = rte_mempool_get_ops(mp->ops_index);
123 return ops->get_count(mp);
126 /* sets mempool ops previously registered by rte_mempool_register_ops. */
128 rte_mempool_set_ops_byname(struct rte_mempool *mp, const char *name,
131 struct rte_mempool_ops *ops = NULL;
134 /* too late, the mempool is already populated. */
135 if (mp->flags & MEMPOOL_F_POOL_CREATED)
138 for (i = 0; i < rte_mempool_ops_table.num_ops; i++) {
140 rte_mempool_ops_table.ops[i].name)) {
141 ops = &rte_mempool_ops_table.ops[i];
150 mp->pool_config = pool_config;