DPDK  20.11.3
examples/ip_pipeline/swq.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2018 Intel Corporation
*/
#include <stdlib.h>
#include <string.h>
#include <rte_string_fns.h>
#include "swq.h"
static struct swq_list swq_list;
int
swq_init(void)
{
TAILQ_INIT(&swq_list);
return 0;
}
struct swq *
swq_find(const char *name)
{
struct swq *swq;
if (name == NULL)
return NULL;
TAILQ_FOREACH(swq, &swq_list, node)
if (strcmp(swq->name, name) == 0)
return swq;
return NULL;
}
struct swq *
swq_create(const char *name, struct swq_params *params)
{
struct swq *swq;
struct rte_ring *r;
unsigned int flags = RING_F_SP_ENQ | RING_F_SC_DEQ;
/* Check input params */
if ((name == NULL) ||
swq_find(name) ||
(params == NULL) ||
(params->size == 0))
return NULL;
/* Resource create */
name,
params->size,
params->cpu_id,
flags);
if (r == NULL)
return NULL;
/* Node allocation */
swq = calloc(1, sizeof(struct swq));
if (swq == NULL) {
return NULL;
}
/* Node fill in */
strlcpy(swq->name, name, sizeof(swq->name));
swq->r = r;
/* Node add to list */
TAILQ_INSERT_TAIL(&swq_list, swq, node);
return swq;
}