1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Copyright(c) 2017 Oracle and/or its affiliates. All rights reserved. */ |
3 | |
4 | #ifndef _IXGBE_IPSEC_H_ |
5 | #define _IXGBE_IPSEC_H_ |
6 | |
7 | #define IXGBE_IPSEC_MAX_SA_COUNT 1024 |
8 | #define IXGBE_IPSEC_MAX_RX_IP_COUNT 128 |
9 | #define IXGBE_IPSEC_BASE_RX_INDEX 0 |
10 | #define IXGBE_IPSEC_BASE_TX_INDEX IXGBE_IPSEC_MAX_SA_COUNT |
11 | #define IXGBE_IPSEC_AUTH_BITS 128 |
12 | |
13 | #define IXGBE_RXTXIDX_IPS_EN 0x00000001 |
14 | #define IXGBE_RXIDX_TBL_SHIFT 1 |
15 | enum ixgbe_ipsec_tbl_sel { |
16 | ips_rx_ip_tbl = 0x01, |
17 | ips_rx_spi_tbl = 0x02, |
18 | ips_rx_key_tbl = 0x03, |
19 | }; |
20 | |
21 | #define IXGBE_RXTXIDX_IDX_SHIFT 3 |
22 | #define IXGBE_RXTXIDX_READ 0x40000000 |
23 | #define IXGBE_RXTXIDX_WRITE 0x80000000 |
24 | |
25 | #define IXGBE_RXMOD_VALID 0x00000001 |
26 | #define IXGBE_RXMOD_PROTO_ESP 0x00000004 |
27 | #define IXGBE_RXMOD_DECRYPT 0x00000008 |
28 | #define IXGBE_RXMOD_IPV6 0x00000010 |
29 | #define IXGBE_RXTXMOD_VF 0x00000020 |
30 | |
31 | struct rx_sa { |
32 | struct hlist_node hlist; |
33 | struct xfrm_state *xs; |
34 | __be32 ipaddr[4]; |
35 | u32 key[4]; |
36 | u32 salt; |
37 | u32 mode; |
38 | u8 iptbl_ind; |
39 | bool used; |
40 | bool decrypt; |
41 | u32 vf; |
42 | }; |
43 | |
44 | struct rx_ip_sa { |
45 | __be32 ipaddr[4]; |
46 | u32 ref_cnt; |
47 | bool used; |
48 | }; |
49 | |
50 | struct tx_sa { |
51 | struct xfrm_state *xs; |
52 | u32 key[4]; |
53 | u32 salt; |
54 | u32 mode; |
55 | bool encrypt; |
56 | bool used; |
57 | u32 vf; |
58 | }; |
59 | |
60 | struct ixgbe_ipsec_tx_data { |
61 | u32 flags; |
62 | u16 trailer_len; |
63 | u16 sa_idx; |
64 | }; |
65 | |
66 | struct ixgbe_ipsec { |
67 | u16 num_rx_sa; |
68 | u16 num_tx_sa; |
69 | struct rx_ip_sa *ip_tbl; |
70 | struct rx_sa *rx_tbl; |
71 | struct tx_sa *tx_tbl; |
72 | DECLARE_HASHTABLE(rx_sa_list, 10); |
73 | }; |
74 | |
75 | struct sa_mbx_msg { |
76 | __be32 spi; |
77 | u8 dir; |
78 | u8 proto; |
79 | u16 family; |
80 | __be32 addr[4]; |
81 | u32 key[5]; |
82 | }; |
83 | #endif /* _IXGBE_IPSEC_H_ */ |
84 | |