/*

 * Copyright (c) 2018, 2019 Nicira, Inc.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at:

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifndef NETDEV_AFXDP_H

#define NETDEV_AFXDP_H 1

#ifdef HAVE_AF_XDP

#include <stdint.h>

#include <stdbool.h>

/* These functions are Linux AF_XDP specific, so they should be used directly

 * only by Linux-specific code. */

enum afxdp_mode {

    OVS_AF_XDP_MODE_UNSPEC,

    OVS_AF_XDP_MODE_BEST_EFFORT,

    OVS_AF_XDP_MODE_NATIVE_ZC,

    OVS_AF_XDP_MODE_NATIVE,

    OVS_AF_XDP_MODE_GENERIC,

    OVS_AF_XDP_MODE_MAX,

};

struct dp_packet;

struct dp_packet_batch;

struct netdev;

struct netdev_afxdp_tx_lock;

struct netdev_custom_stats;

struct netdev_rxq;

struct netdev_stats;

struct smap;

struct xdp_umem;

struct xsk_socket_info;

int netdev_afxdp_rxq_construct(struct netdev_rxq *rxq_);

void netdev_afxdp_rxq_destruct(struct netdev_rxq *rxq_);

int netdev_afxdp_construct(struct netdev *netdev_);

void netdev_afxdp_destruct(struct netdev *netdev_);

int netdev_afxdp_verify_mtu_size(const struct netdev *netdev, int mtu);

int netdev_afxdp_rxq_recv(struct netdev_rxq *rxq_,

                          struct dp_packet_batch *batch,

                          int *qfill);

int netdev_afxdp_batch_send(struct netdev *netdev_, int qid,

                            struct dp_packet_batch *batch,

                            bool concurrent_txq);

int netdev_afxdp_set_config(struct netdev *netdev, const struct smap *args,

                            char **errp);

int netdev_afxdp_get_config(const struct netdev *netdev, struct smap *args);

int netdev_afxdp_get_stats(const struct netdev *netdev_,

                           struct netdev_stats *stats);

int netdev_afxdp_get_status(const struct netdev *netdev, struct smap *args);

int netdev_afxdp_get_custom_stats(const struct netdev *netdev,

                                  struct netdev_custom_stats *custom_stats);

void free_afxdp_buf(struct dp_packet *p);

int netdev_afxdp_reconfigure(struct netdev *netdev);

void signal_remove_xdp(struct netdev *netdev);

#else /* !HAVE_AF_XDP */

#include "openvswitch/compiler.h"

struct dp_packet;

static inline void

free_afxdp_buf(struct dp_packet *p OVS_UNUSED)

{

    /* Nothing. */

}

Unexecuted instantiation: packets.c:free_afxdp_buf

Unexecuted instantiation: dp-packet.c:free_afxdp_buf

#endif /* HAVE_AF_XDP */

#endif /* netdev-afxdp.h */