9a408cc8ac
Add kni object implementation to the application. Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com> Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com> Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
168 lines
2.9 KiB
C
168 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2018 Intel Corporation
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <rte_ethdev.h>
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#include <rte_bus_pci.h>
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#include "kni.h"
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#include "mempool.h"
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#include "link.h"
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static struct kni_list kni_list;
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#ifndef KNI_MAX
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#define KNI_MAX 16
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#endif
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int
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kni_init(void)
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{
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TAILQ_INIT(&kni_list);
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#ifdef RTE_LIBRTE_KNI
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rte_kni_init(KNI_MAX);
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#endif
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return 0;
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}
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struct kni *
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kni_find(const char *name)
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{
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struct kni *kni;
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if (name == NULL)
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return NULL;
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TAILQ_FOREACH(kni, &kni_list, node)
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if (strcmp(kni->name, name) == 0)
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return kni;
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return NULL;
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}
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#ifndef RTE_LIBRTE_KNI
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struct kni *
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kni_create(const char *name __rte_unused,
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struct kni_params *params __rte_unused)
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{
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return NULL;
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}
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void
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kni_handle_request(void)
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{
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return;
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}
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#else
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static int
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kni_config_network_interface(uint16_t port_id, uint8_t if_up)
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{
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int ret = 0;
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if (port_id >= rte_eth_dev_count())
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return -EINVAL;
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ret = (if_up) ?
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rte_eth_dev_set_link_up(port_id) :
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rte_eth_dev_set_link_down(port_id);
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return ret;
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}
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static int
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kni_change_mtu(uint16_t port_id, unsigned int new_mtu)
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{
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int ret;
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if (port_id >= rte_eth_dev_count())
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return -EINVAL;
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if (new_mtu > ETHER_MAX_LEN)
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return -EINVAL;
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/* Set new MTU */
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ret = rte_eth_dev_set_mtu(port_id, new_mtu);
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if (ret < 0)
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return ret;
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return 0;
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}
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struct kni *
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kni_create(const char *name, struct kni_params *params)
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{
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struct rte_eth_dev_info dev_info;
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struct rte_kni_conf kni_conf;
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struct rte_kni_ops kni_ops;
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struct kni *kni;
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struct mempool *mempool;
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struct link *link;
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struct rte_kni *k;
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/* Check input params */
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if ((name == NULL) ||
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kni_find(name) ||
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(params == NULL))
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return NULL;
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mempool = mempool_find(params->mempool_name);
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link = link_find(params->link_name);
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if ((mempool == NULL) ||
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(link == NULL))
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return NULL;
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/* Resource create */
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rte_eth_dev_info_get(link->port_id, &dev_info);
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memset(&kni_conf, 0, sizeof(kni_conf));
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snprintf(kni_conf.name, RTE_KNI_NAMESIZE, "%s", name);
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kni_conf.force_bind = params->force_bind;
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kni_conf.core_id = params->thread_id;
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kni_conf.group_id = link->port_id;
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kni_conf.mbuf_size = mempool->buffer_size;
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kni_conf.addr = dev_info.pci_dev->addr;
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kni_conf.id = dev_info.pci_dev->id;
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memset(&kni_ops, 0, sizeof(kni_ops));
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kni_ops.port_id = link->port_id;
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kni_ops.config_network_if = kni_config_network_interface;
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kni_ops.change_mtu = kni_change_mtu;
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k = rte_kni_alloc(mempool->m, &kni_conf, &kni_ops);
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if (k == NULL)
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return NULL;
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/* Node allocation */
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kni = calloc(1, sizeof(struct kni));
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if (kni == NULL)
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return NULL;
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/* Node fill in */
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strncpy(kni->name, name, sizeof(kni->name));
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kni->k = k;
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/* Node add to list */
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TAILQ_INSERT_TAIL(&kni_list, kni, node);
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return kni;
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}
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void
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kni_handle_request(void)
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{
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struct kni *kni;
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TAILQ_FOREACH(kni, &kni_list, node)
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rte_kni_handle_request(kni->k);
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}
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#endif
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