LXR dpdk/drivers/net/softnic/rte_eth_softnic

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2010-2018 Intel Corporation
   3 */
   4
   5#include <stdlib.h>
   6#include <string.h>
   7
   8#include <rte_ethdev.h>
   9#include <rte_string_fns.h>
  10
  11#include "rte_eth_softnic_internals.h"
  12
  13int
  14softnic_link_init(struct pmd_internals *p)
  15{
  16        TAILQ_INIT(&p->link_list);
  17
  18        return 0;
  19}
  20
  21void
  22softnic_link_free(struct pmd_internals *p)
  23{
  24        for ( ; ; ) {
  25                struct softnic_link *link;
  26
  27                link = TAILQ_FIRST(&p->link_list);
  28                if (link == NULL)
  29                        break;
  30
  31                TAILQ_REMOVE(&p->link_list, link, node);
  32                free(link);
  33        }
  34}
  35
  36struct softnic_link *
  37softnic_link_find(struct pmd_internals *p,
  38        const char *name)
  39{
  40        struct softnic_link *link;
  41
  42        if (name == NULL)
  43                return NULL;
  44
  45        TAILQ_FOREACH(link, &p->link_list, node)
  46                if (strcmp(link->name, name) == 0)
  47                        return link;
  48
  49        return NULL;
  50}
  51
  52struct softnic_link *
  53softnic_link_create(struct pmd_internals *p,
  54        const char *name,
  55        struct softnic_link_params *params)
  56{
  57        struct rte_eth_dev_info port_info;
  58        struct softnic_link *link;
  59        uint16_t port_id;
  60        int ret;
  61
  62        /* Check input params */
  63        if (name == NULL ||
  64                softnic_link_find(p, name) ||
  65                params == NULL)
  66                return NULL;
  67
  68        port_id = params->port_id;
  69        if (params->dev_name) {
  70                int status;
  71
  72                status = rte_eth_dev_get_port_by_name(params->dev_name,
  73                        &port_id);
  74
  75                if (status)
  76                        return NULL;
  77        } else {
  78                if (!rte_eth_dev_is_valid_port(port_id))
  79                        return NULL;
  80        }
  81
  82        ret = rte_eth_dev_info_get(port_id, &port_info);
  83        if (ret != 0)
  84                return NULL;
  85
  86        /* Node allocation */
  87        link = calloc(1, sizeof(struct softnic_link));
  88        if (link == NULL)
  89                return NULL;
  90
  91        /* Node fill in */
  92        strlcpy(link->name, name, sizeof(link->name));
  93        link->port_id = port_id;
  94        link->n_rxq = port_info.nb_rx_queues;
  95        link->n_txq = port_info.nb_tx_queues;
  96
  97        /* Node add to list */
  98        TAILQ_INSERT_TAIL(&p->link_list, link, node);
  99
 100        return link;
 101}
 102