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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2018 Gaëtan Rivet
*/
#include <errno.h>
#include <string.h>
#include <dev_driver.h>
#include <rte_kvargs.h>
#include <rte_errno.h>
#include "vdev_logs.h"
#include "vdev_private.h"
enum vdev_params {
RTE_VDEV_PARAM_NAME,
RTE_VDEV_PARAM_MAX,
};
static const char * const vdev_params_keys[] = {
[RTE_VDEV_PARAM_NAME] = "name",
[RTE_VDEV_PARAM_MAX] = NULL,
};
static int
vdev_dev_match(const struct rte_device *dev,
const void *_kvlist)
{
const struct rte_kvargs *kvlist = _kvlist;
const char *key = vdev_params_keys[RTE_VDEV_PARAM_NAME];
const char *name;
/* no kvlist arg, all devices match */
if (kvlist == NULL)
return 0;
/* if key is present in kvlist and does not match, filter device */
name = rte_kvargs_get(kvlist, key);
if (name != NULL && strcmp(name, dev->name))
return -1;
return 0;
}
void *
rte_vdev_dev_iterate(const void *start,
const char *str,
const struct rte_dev_iterator *it __rte_unused)
{
struct rte_kvargs *kvargs = NULL;
struct rte_device *dev;
if (str != NULL) {
kvargs = rte_kvargs_parse(str, vdev_params_keys);
if (kvargs == NULL) {
VDEV_LOG(ERR, "cannot parse argument list");
rte_errno = EINVAL;
return NULL;
}
}
dev = rte_vdev_find_device(start, vdev_dev_match, kvargs);
rte_kvargs_free(kvargs);
return dev;
}
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