/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2018 Oracle and/or its affiliates. All rights reserved. */

#ifndef _IXGBEVF_IPSEC_H_
#define _IXGBEVF_IPSEC_H_

#define IXGBE_IPSEC_MAX_SA_COUNT        1024
#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_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;
        u32 pfsa;
        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;
        u32 pfsa;
        bool encrypt;
        bool used;
};

struct ixgbevf_ipsec_tx_data {
        u32 flags;
        u16 trailer_len;
        u16 pfsa;
};

struct ixgbevf_ipsec {
        u16 num_rx_sa;
        u16 num_tx_sa;
        struct rx_sa *rx_tbl;
        struct tx_sa *tx_tbl;
        DECLARE_HASHTABLE(rx_sa_list, 10);
};

struct sa_mbx_msg {
        __be32 spi;
        u8 dir;
        u8 proto;
        u16 family;
        __be32 addr[4];
        u32 key[5];
};
#endif /* _IXGBEVF_IPSEC_H_ */