1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2 /* Copyright (C) 2019 Netronome Systems, Inc. */
3
4 #ifndef NFP_CRYPTO_H
5 #define NFP_CRYPTO_H 1
6
7 struct net_device;
8 struct nfp_net;
9 struct nfp_net_tls_resync_req;
10
11 struct nfp_net_tls_offload_ctx {
12 __be32 fw_handle[2];
13
14 u8 rx_end[0];
15 /* Tx only fields follow - Rx side does not have enough driver state
16 * to fit these
17 */
18
19 u32 next_seq;
20 };
21
22 #ifdef CONFIG_TLS_DEVICE
23 int nfp_net_tls_init(struct nfp_net *nn);
24 int nfp_net_tls_rx_resync_req(struct net_device *netdev,
25 struct nfp_net_tls_resync_req *req,
26 void *pkt, unsigned int pkt_len);
27 #else
nfp_net_tls_init(struct nfp_net * nn)28 static inline int nfp_net_tls_init(struct nfp_net *nn)
29 {
30 return 0;
31 }
32
33 static inline int
nfp_net_tls_rx_resync_req(struct net_device * netdev,struct nfp_net_tls_resync_req * req,void * pkt,unsigned int pkt_len)34 nfp_net_tls_rx_resync_req(struct net_device *netdev,
35 struct nfp_net_tls_resync_req *req,
36 void *pkt, unsigned int pkt_len)
37 {
38 return -EOPNOTSUPP;
39 }
40 #endif
41
42 /* IPsec related structures and functions */
43 struct nfp_ipsec_offload {
44 u32 seq_hi;
45 u32 seq_low;
46 u32 handle;
47 };
48
49 #ifndef CONFIG_NFP_NET_IPSEC
nfp_net_ipsec_init(struct nfp_net * nn)50 static inline void nfp_net_ipsec_init(struct nfp_net *nn)
51 {
52 }
53
nfp_net_ipsec_clean(struct nfp_net * nn)54 static inline void nfp_net_ipsec_clean(struct nfp_net *nn)
55 {
56 }
57 #else
58 void nfp_net_ipsec_init(struct nfp_net *nn);
59 void nfp_net_ipsec_clean(struct nfp_net *nn);
60 bool nfp_net_ipsec_tx_prep(struct nfp_net_dp *dp, struct sk_buff *skb,
61 struct nfp_ipsec_offload *offload_info);
62 int nfp_net_ipsec_rx(struct nfp_meta_parsed *meta, struct sk_buff *skb);
63 #endif
64
65 #endif
66