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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (C) 2021 Corigine, Inc. */
#ifndef __NFP_FLOWER_CONNTRACK_H__
#define __NFP_FLOWER_CONNTRACK_H__ 1
#include "main.h"
extern const struct rhashtable_params nfp_zone_table_params;
/**
* struct nfp_fl_ct_zone_entry - Zone entry containing conntrack flow information
* @zone: The zone number, used as lookup key in hashtable
* @hash_node: Used by the hashtable
* @priv: Pointer to nfp_flower_priv data
* @nft: Pointer to nf_flowtable for this zone
*/
struct nfp_fl_ct_zone_entry {
u16 zone;
struct rhash_head hash_node;
struct nfp_flower_priv *priv;
struct nf_flowtable *nft;
};
bool is_pre_ct_flow(struct flow_cls_offload *flow);
bool is_post_ct_flow(struct flow_cls_offload *flow);
/**
* nfp_fl_ct_handle_pre_ct() - Handles -trk conntrack rules
* @priv: Pointer to app priv
* @netdev: netdev structure.
* @flow: TC flower classifier offload structure.
* @extack: Extack pointer for errors
*
* Adds a new entry to the relevant zone table and tries to
* merge with other +trk+est entries and offload if possible.
*
* Return: negative value on error, 0 if configured successfully.
*/
int nfp_fl_ct_handle_pre_ct(struct nfp_flower_priv *priv,
struct net_device *netdev,
struct flow_cls_offload *flow,
struct netlink_ext_ack *extack);
/**
* nfp_fl_ct_handle_post_ct() - Handles +trk+est conntrack rules
* @priv: Pointer to app priv
* @netdev: netdev structure.
* @flow: TC flower classifier offload structure.
* @extack: Extack pointer for errors
*
* Adds a new entry to the relevant zone table and tries to
* merge with other -trk entries and offload if possible.
*
* Return: negative value on error, 0 if configured successfully.
*/
int nfp_fl_ct_handle_post_ct(struct nfp_flower_priv *priv,
struct net_device *netdev,
struct flow_cls_offload *flow,
struct netlink_ext_ack *extack);
#endif
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