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1/* SPDX-License-Identifier: GPL-2.0-only */2/****************************************************************************3 * Driver for Solarflare network controllers and boards4 * Copyright 2023, Advanced Micro Devices, Inc.5 *6 * This program is free software; you can redistribute it and/or modify it7 * under the terms of the GNU General Public License version 2 as published8 * by the Free Software Foundation, incorporated herein by reference.9 */10 11#ifndef EFX_TC_CONNTRACK_H12#define EFX_TC_CONNTRACK_H13#include "net_driver.h"14 15#if IS_ENABLED(CONFIG_SFC_SRIOV)16#include <linux/refcount.h>17#include <net/netfilter/nf_flow_table.h>18 19struct efx_tc_ct_zone {20 u16 zone;21 struct rhash_head linkage;22 refcount_t ref;23 struct nf_flowtable *nf_ft;24 struct efx_nic *efx;25 struct mutex mutex; /* protects cts list */26 struct list_head cts; /* list of efx_tc_ct_entry in this zone */27};28 29/* create/uncreate/teardown hashtables */30int efx_tc_init_conntrack(struct efx_nic *efx);31void efx_tc_destroy_conntrack(struct efx_nic *efx);32void efx_tc_fini_conntrack(struct efx_nic *efx);33 34struct efx_tc_ct_zone *efx_tc_ct_register_zone(struct efx_nic *efx, u16 zone,35 struct nf_flowtable *ct_ft);36void efx_tc_ct_unregister_zone(struct efx_nic *efx,37 struct efx_tc_ct_zone *ct_zone);38 39struct efx_tc_ct_entry {40 unsigned long cookie;41 struct rhash_head linkage;42 __be16 eth_proto;43 u8 ip_proto;44 bool dnat;45 __be32 src_ip, dst_ip, nat_ip;46 struct in6_addr src_ip6, dst_ip6;47 __be16 l4_sport, l4_dport, l4_natport; /* Ports (UDP, TCP) */48 struct efx_tc_ct_zone *zone;49 u32 mark;50 struct efx_tc_counter *cnt;51 struct list_head list; /* entry on zone->cts */52};53 54#endif /* CONFIG_SFC_SRIOV */55#endif /* EFX_TC_CONNTRACK_H */56