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 15enum 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 31struct 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 44struct rx_ip_sa { 45 __be32 ipaddr[4]; 46 u32 ref_cnt; 47 bool used; 48}; 49 50struct 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 60struct ixgbe_ipsec_tx_data { 61 u32 flags; 62 u16 trailer_len; 63 u16 sa_idx; 64}; 65 66struct 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 75struct sa_mbx_msg { 76 __be32 spi; 77 u8 flags; 78 u8 proto; 79 u16 family; 80 __be32 addr[4]; 81 u32 key[5]; 82}; 83#endif /* _IXGBE_IPSEC_H_ */ 84