/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (C) 2019 Netronome Systems, Inc. */

#ifndef NFP_CRYPTO_FW_H
#define NFP_CRYPTO_FW_H 1

#include "../ccm.h"

#define NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_ENC       0
#define NFP_NET_CRYPTO_OP_TLS_1_2_AES_GCM_128_DEC       1

struct nfp_net_tls_resync_req {
        __be32 fw_handle[2];
        __be32 tcp_seq;
        u8 l3_offset;
        u8 l4_offset;
        u8 resv[2];
};

struct nfp_crypto_reply_simple {
        struct nfp_ccm_hdr hdr;
        __be32 error;
};

struct nfp_crypto_req_reset {
        struct nfp_ccm_hdr hdr;
        __be32 ep_id;
};

#define NFP_NET_TLS_IPVER               GENMASK(15, 12)
#define NFP_NET_TLS_VLAN                GENMASK(11, 0)
#define NFP_NET_TLS_VLAN_UNUSED                 4095

struct nfp_crypto_req_add_front {
        /* New members MUST be added within the struct_group() macro below. */
        struct_group_tagged(nfp_crypto_req_add_front_hdr, __hdr,
                struct nfp_ccm_hdr hdr;
                __be32 ep_id;
                u8 resv[3];
                u8 opcode;
                u8 key_len;
                __be16 ipver_vlan __packed;
                u8 l4_proto;
        );
#define NFP_NET_TLS_NON_ADDR_KEY_LEN    8
        u8 l3_addrs[];
};
static_assert(offsetof(struct nfp_crypto_req_add_front, l3_addrs) ==
              sizeof(struct nfp_crypto_req_add_front_hdr),
              "struct member likely outside of struct_group_tagged()");

struct nfp_crypto_req_add_back {
        __be16 src_port;
        __be16 dst_port;
        __be32 key[8];
        __be32 salt;
        __be32 iv[2];
        __be32 counter;
        __be32 rec_no[2];
        __be32 tcp_seq;
};

struct nfp_crypto_req_add_v4 {
        struct nfp_crypto_req_add_front_hdr front;
        __be32 src_ip;
        __be32 dst_ip;
        struct nfp_crypto_req_add_back back;
};

struct nfp_crypto_req_add_v6 {
        struct nfp_crypto_req_add_front_hdr front;
        __be32 src_ip[4];
        __be32 dst_ip[4];
        struct nfp_crypto_req_add_back back;
};

struct nfp_crypto_reply_add {
        struct nfp_ccm_hdr hdr;
        __be32 error;
        __be32 handle[2];
};

struct nfp_crypto_req_del {
        struct nfp_ccm_hdr hdr;
        __be32 ep_id;
        __be32 handle[2];
};

struct nfp_crypto_req_update {
        struct nfp_ccm_hdr hdr;
        __be32 ep_id;
        u8 resv[3];
        u8 opcode;
        __be32 handle[2];
        __be32 rec_no[2];
        __be32 tcp_seq;
};
#endif