/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright(c) 2017 Oracle and/or its affiliates. All rights reserved. */ #ifndef _IXGBE_IPSEC_H_ #define _IXGBE_IPSEC_H_ #define IXGBE_IPSEC_MAX_SA_COUNT 1024 #define IXGBE_IPSEC_MAX_RX_IP_COUNT 128 #define IXGBE_IPSEC_BASE_RX_INDEX 0 #define IXGBE_IPSEC_BASE_TX_INDEX IXGBE_IPSEC_MAX_SA_COUNT #define IXGBE_IPSEC_AUTH_BITS 128 #define IXGBE_RXTXIDX_IPS_EN 0x00000001 #define IXGBE_RXIDX_TBL_SHIFT 1 enum ixgbe_ipsec_tbl_sel { ips_rx_ip_tbl = 0x01, ips_rx_spi_tbl = 0x02, ips_rx_key_tbl = 0x03, }; #define IXGBE_RXTXIDX_IDX_SHIFT 3 #define IXGBE_RXTXIDX_READ 0x40000000 #define IXGBE_RXTXIDX_WRITE 0x80000000 #define IXGBE_RXMOD_VALID 0x00000001 #define IXGBE_RXMOD_PROTO_ESP 0x00000004 #define IXGBE_RXMOD_DECRYPT 0x00000008 #define IXGBE_RXMOD_IPV6 0x00000010 struct rx_sa { struct hlist_node hlist; struct xfrm_state *xs; __be32 ipaddr[4]; u32 key[4]; u32 salt; u32 mode; u8 iptbl_ind; bool used; bool decrypt; }; struct rx_ip_sa { __be32 ipaddr[4]; u32 ref_cnt; bool used; }; struct tx_sa { struct xfrm_state *xs; u32 key[4]; u32 salt; bool encrypt; bool used; }; struct ixgbe_ipsec_tx_data { u32 flags; u16 trailer_len; u16 sa_idx; }; struct ixgbe_ipsec { u16 num_rx_sa; u16 num_tx_sa; struct rx_ip_sa *ip_tbl; struct rx_sa *rx_tbl; struct tx_sa *tx_tbl; DECLARE_HASHTABLE(rx_sa_list, 10); }; #endif /* _IXGBE_IPSEC_H_ */