DPDK  21.11.0
examples/ip_pipeline/mempool.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2018 Intel Corporation
*/
#include <stdlib.h>
#include <string.h>
#include <rte_mbuf.h>
#include <rte_string_fns.h>
#include "mempool.h"
#define BUFFER_SIZE_MIN (sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
static struct mempool_list mempool_list;
int
mempool_init(void)
{
TAILQ_INIT(&mempool_list);
return 0;
}
struct mempool *
mempool_find(const char *name)
{
struct mempool *mempool;
if (name == NULL)
return NULL;
TAILQ_FOREACH(mempool, &mempool_list, node)
if (strcmp(mempool->name, name) == 0)
return mempool;
return NULL;
}
struct mempool *
mempool_create(const char *name, struct mempool_params *params)
{
struct mempool *mempool;
struct rte_mempool *m;
/* Check input params */
if ((name == NULL) ||
mempool_find(name) ||
(params == NULL) ||
(params->buffer_size < BUFFER_SIZE_MIN) ||
(params->pool_size == 0))
return NULL;
/* Resource create */
name,
params->pool_size,
params->cache_size,
0,
params->buffer_size - sizeof(struct rte_mbuf),
params->cpu_id);
if (m == NULL)
return NULL;
/* Node allocation */
mempool = calloc(1, sizeof(struct mempool));
if (mempool == NULL) {
return NULL;
}
/* Node fill in */
strlcpy(mempool->name, name, sizeof(mempool->name));
mempool->m = m;
mempool->buffer_size = params->buffer_size;
/* Node add to list */
TAILQ_INSERT_TAIL(&mempool_list, mempool, node);
return mempool;
}