/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2019 HiSilicon Limited. */

#ifndef __HISI_SEC_V2_CRYPTO_H
#define __HISI_SEC_V2_CRYPTO_H

#define SEC_AIV_SIZE            12
#define SEC_IV_SIZE             24
#define SEC_MAX_KEY_SIZE        64
#define SEC_MAX_AKEY_SIZE       128
#define SEC_COMM_SCENE          0
#define SEC_MIN_BLOCK_SZ        1

enum sec_calg {
        SEC_CALG_3DES = 0x1,
        SEC_CALG_AES  = 0x2,
        SEC_CALG_SM4  = 0x3,
};

enum sec_hash_alg {
        SEC_A_HMAC_SHA1   = 0x10,
        SEC_A_HMAC_SHA256 = 0x11,
        SEC_A_HMAC_SHA512 = 0x15,
};

enum sec_cmode {
        SEC_CMODE_ECB    = 0x0,
        SEC_CMODE_CBC    = 0x1,
        SEC_CMODE_CTR    = 0x4,
        SEC_CMODE_CCM    = 0x5,
        SEC_CMODE_GCM    = 0x6,
        SEC_CMODE_XTS    = 0x7,
};

enum sec_ckey_type {
        SEC_CKEY_128BIT = 0x0,
        SEC_CKEY_192BIT = 0x1,
        SEC_CKEY_256BIT = 0x2,
        SEC_CKEY_3DES_3KEY = 0x1,
        SEC_CKEY_3DES_2KEY = 0x3,
};

enum sec_bd_type {
        SEC_BD_TYPE1 = 0x1,
        SEC_BD_TYPE2 = 0x2,
        SEC_BD_TYPE3 = 0x3,
};

enum sec_auth {
        SEC_NO_AUTH = 0x0,
        SEC_AUTH_TYPE1 = 0x1,
        SEC_AUTH_TYPE2 = 0x2,
};

enum sec_cipher_dir {
        SEC_CIPHER_ENC = 0x1,
        SEC_CIPHER_DEC = 0x2,
};

enum sec_addr_type {
        SEC_PBUF = 0x0,
        SEC_SGL  = 0x1,
        SEC_PRP  = 0x2,
};

struct bd_status {
        u64 tag;
        u8 done;
        u8 err_type;
        u16 flag;
        u16 icv;
};

enum {
        AUTHPAD_PAD,
        AUTHPAD_NOPAD,
};

enum {
        AIGEN_GEN,
        AIGEN_NOGEN,
};

struct sec_sqe_type2 {
        /*
         * mac_len: 0~4 bits
         * a_key_len: 5~10 bits
         * a_alg: 11~16 bits
         */
        __le32 mac_key_alg;

        /*
         * c_icv_len: 0~5 bits
         * c_width: 6~8 bits
         * c_key_len: 9~11 bits
         * c_mode: 12~15 bits
         */
        __le16 icvw_kmode;

        /* c_alg: 0~3 bits */
        __u8 c_alg;
        __u8 rsvd4;

        /*
         * a_len: 0~23 bits
         * iv_offset_l: 24~31 bits
         */
        __le32 alen_ivllen;

        /*
         * c_len: 0~23 bits
         * iv_offset_h: 24~31 bits
         */
        __le32 clen_ivhlen;

        __le16 auth_src_offset;
        __le16 cipher_src_offset;
        __le16 cs_ip_header_offset;
        __le16 cs_udp_header_offset;
        __le16 pass_word_len;
        __le16 dk_len;
        __u8 salt3;
        __u8 salt2;
        __u8 salt1;
        __u8 salt0;

        __le16 tag;
        __le16 rsvd5;

        /*
         * c_pad_type: 0~3 bits
         * c_pad_len: 4~11 bits
         * c_pad_data_type: 12~15 bits
         */
        __le16 cph_pad;

        /* c_pad_len_field: 0~1 bits */
        __le16 c_pad_len_field;

        __le64 long_a_data_len;
        __le64 a_ivin_addr;
        __le64 a_key_addr;
        __le64 mac_addr;
        __le64 c_ivin_addr;
        __le64 c_key_addr;

        __le64 data_src_addr;
        __le64 data_dst_addr;

        /*
         * done: 0 bit
         * icv: 1~3 bits
         * csc: 4~6 bits
         * flag: 7-10 bits
         * dif_check: 11~13 bits
         */
        __le16 done_flag;

        __u8 error_type;
        __u8 warning_type;
        __u8 mac_i3;
        __u8 mac_i2;
        __u8 mac_i1;
        __u8 mac_i0;
        __le16 check_sum_i;
        __u8 tls_pad_len_i;
        __u8 rsvd12;
        __le32 counter;
};

struct sec_sqe {
        /*
         * type:        0~3 bits
         * cipher:      4~5 bits
         * auth:        6~7 bit s
         */
        __u8 type_cipher_auth;

        /*
         * seq: 0 bit
         * de:  1~2 bits
         * scene:       3~6 bits
         * src_addr_type: ~7 bit, with sdm_addr_type 0-1 bits
         */
        __u8 sds_sa_type;

        /*
         * src_addr_type: 0~1 bits, not used now,
         * if support PRP, set this field, or set zero.
         * dst_addr_type: 2~4 bits
         * mac_addr_type: 5~7 bits
         */
        __u8 sdm_addr_type;
        __u8 rsvd0;

        /*
         * nonce_len(type2): 0~3 bits
         * huk(type2): 4 bit
         * key_s(type2): 5 bit
         * ci_gen: 6~7 bits
         */
        __u8 huk_key_ci;

        /*
         * ai_gen: 0~1 bits
         * a_pad(type2): 2~3 bits
         * c_s(type2): 4~5 bits
         */
        __u8 ai_apd_cs;

        /*
         * rhf(type2): 0 bit
         * c_key_type: 1~2 bits
         * a_key_type: 3~4 bits
         * write_frame_len(type2): 5~7 bits
         */
        __u8 rca_key_frm;

        /*
         * cal_iv_addr_en(type2): 0 bit
         * tls_up(type2): 1 bit
         * inveld: 7 bit
         */
        __u8 iv_tls_ld;

        /* Just using type2 BD now */
        struct sec_sqe_type2 type2;
};

struct bd3_auth_ivin {
        __le64 a_ivin_addr;
        __le32 rsvd0;
        __le32 rsvd1;
} __packed __aligned(4);

struct bd3_skip_data {
        __le32 rsvd0;

        /*
         * gran_num: 0~15 bits
         * reserved: 16~31 bits
         */
        __le32 gran_num;

        /*
         * src_skip_data_len: 0~24 bits
         * reserved: 25~31 bits
         */
        __le32 src_skip_data_len;

        /*
         * dst_skip_data_len: 0~24 bits
         * reserved: 25~31 bits
         */
        __le32 dst_skip_data_len;
};

struct bd3_stream_scene {
        __le64 c_ivin_addr;
        __le64 long_a_data_len;

        /*
         * auth_pad: 0~1 bits
         * stream_protocol: 2~4 bits
         * reserved: 5~7 bits
         */
        __u8 stream_auth_pad;
        __u8 plaintext_type;
        __le16 pad_len_1p3;
} __packed __aligned(4);

struct bd3_no_scene {
        __le64 c_ivin_addr;
        __le32 rsvd0;
        __le32 rsvd1;
        __le32 rsvd2;
} __packed __aligned(4);

struct bd3_check_sum {
        __u8 rsvd0;
        __u8 hac_sva_status;
        __le16 check_sum_i;
};

struct bd3_tls_type_back {
        __u8 tls_1p3_type_back;
        __u8 hac_sva_status;
        __le16 pad_len_1p3_back;
};

struct sec_sqe3 {
        /*
         * type: 0~3 bit
         * bd_invalid: 4 bit
         * scene: 5~8 bit
         * de: 9~10 bit
         * src_addr_type: 11~13 bit
         * dst_addr_type: 14~16 bit
         * mac_addr_type: 17~19 bit
         * reserved: 20~31 bits
         */
        __le32 bd_param;

        /*
         * cipher: 0~1 bits
         * ci_gen: 2~3 bit
         * c_icv_len: 4~9 bit
         * c_width: 10~12 bits
         * c_key_len: 13~15 bits
         */
        __le16 c_icv_key;

        /*
         * c_mode : 0~3 bits
         * c_alg : 4~7 bits
         */
        __u8 c_mode_alg;

        /*
         * nonce_len : 0~3 bits
         * huk : 4 bits
         * cal_iv_addr_en : 5 bits
         * seq : 6 bits
         * reserved : 7 bits
         */
        __u8 huk_iv_seq;

        __le64 tag;
        __le64 data_src_addr;
        __le64 a_key_addr;
        union {
                struct bd3_auth_ivin auth_ivin;
                struct bd3_skip_data skip_data;
        };

        __le64 c_key_addr;

        /*
         * auth: 0~1 bits
         * ai_gen: 2~3 bits
         * mac_len: 4~8 bits
         * akey_len: 9~14 bits
         * a_alg: 15~20 bits
         * key_sel: 21~24 bits
         * ctr_count_mode/sm4_xts: 25~26 bits
         * sva_prefetch: 27 bits
         * key_wrap_num: 28~30 bits
         * update_key: 31 bits
         */
        __le32 auth_mac_key;
        __le32 salt;
        __le16 auth_src_offset;
        __le16 cipher_src_offset;

        /*
         * auth_len: 0~23 bit
         * auth_key_offset: 24~31 bits
         */
        __le32 a_len_key;

        /*
         * cipher_len: 0~23 bit
         * auth_ivin_offset: 24~31 bits
         */
        __le32 c_len_ivin;
        __le64 data_dst_addr;
        __le64 mac_addr;
        union {
                struct bd3_stream_scene stream_scene;
                struct bd3_no_scene no_scene;
        };

        /*
         * done: 0 bit
         * icv: 1~3 bit
         * csc: 4~6 bit
         * flag: 7~10 bit
         * reserved: 11~15 bit
         */
        __le16 done_flag;
        __u8 error_type;
        __u8 warning_type;
        union {
                __le32 mac_i;
                __le32 kek_key_addr_l;
        };
        union {
                __le32 kek_key_addr_h;
                struct bd3_check_sum check_sum;
                struct bd3_tls_type_back tls_type_back;
        };
        __le32 counter;
} __packed __aligned(4);

int sec_register_to_crypto(struct hisi_qm *qm);
void sec_unregister_from_crypto(struct hisi_qm *qm);
#endif