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/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2023, Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#ifndef EFX_TC_CONNTRACK_H
#define EFX_TC_CONNTRACK_H
#include "net_driver.h"
#if IS_ENABLED(CONFIG_SFC_SRIOV)
#include <linux/refcount.h>
#include <net/netfilter/nf_flow_table.h>
struct efx_tc_ct_zone {
u16 zone;
struct rhash_head linkage;
refcount_t ref;
struct nf_flowtable *nf_ft;
struct efx_nic *efx;
struct mutex mutex; /* protects cts list */
struct list_head cts; /* list of efx_tc_ct_entry in this zone */
};
/* create/teardown hashtables */
int efx_tc_init_conntrack(struct efx_nic *efx);
void efx_tc_fini_conntrack(struct efx_nic *efx);
struct efx_tc_ct_zone *efx_tc_ct_register_zone(struct efx_nic *efx, u16 zone,
struct nf_flowtable *ct_ft);
void efx_tc_ct_unregister_zone(struct efx_nic *efx,
struct efx_tc_ct_zone *ct_zone);
struct efx_tc_ct_entry {
unsigned long cookie;
struct rhash_head linkage;
__be16 eth_proto;
u8 ip_proto;
bool dnat;
__be32 src_ip, dst_ip, nat_ip;
struct in6_addr src_ip6, dst_ip6;
__be16 l4_sport, l4_dport, l4_natport; /* Ports (UDP, TCP) */
struct efx_tc_ct_zone *zone;
u32 mark;
struct efx_tc_counter *cnt;
struct list_head list; /* entry on zone->cts */
};
#endif /* CONFIG_SFC_SRIOV */
#endif /* EFX_TC_CONNTRACK_H */
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