1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /**************************************************************************** |
3 | * Driver for Solarflare network controllers and boards |
4 | * Copyright 2023, Advanced Micro Devices, Inc. |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License version 2 as published |
8 | * by the Free Software Foundation, incorporated herein by reference. |
9 | */ |
10 | |
11 | #ifndef EFX_TC_CONNTRACK_H |
12 | #define EFX_TC_CONNTRACK_H |
13 | #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 | |
19 | struct 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 */ |
30 | int efx_tc_init_conntrack(struct efx_nic *efx); |
31 | void efx_tc_destroy_conntrack(struct efx_nic *efx); |
32 | void efx_tc_fini_conntrack(struct efx_nic *efx); |
33 | |
34 | struct efx_tc_ct_zone *efx_tc_ct_register_zone(struct efx_nic *efx, u16 zone, |
35 | struct nf_flowtable *ct_ft); |
36 | void efx_tc_ct_unregister_zone(struct efx_nic *efx, |
37 | struct efx_tc_ct_zone *ct_zone); |
38 | |
39 | struct 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 | |