| /* |
| * Copyright (C) 2016 Cavium, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License |
| * as published by the Free Software Foundation. |
| */ |
| |
| #ifndef _CPTVF_ALGS_H_ |
| #define _CPTVF_ALGS_H_ |
| |
| #include "request_manager.h" |
| |
| #define MAX_DEVICES 16 |
| #define MAJOR_OP_FC 0x33 |
| #define MAX_ENC_KEY_SIZE 32 |
| #define MAX_HASH_KEY_SIZE 64 |
| #define MAX_KEY_SIZE (MAX_ENC_KEY_SIZE + MAX_HASH_KEY_SIZE) |
| #define CONTROL_WORD_LEN 8 |
| #define KEY2_OFFSET 48 |
| |
| #define DMA_MODE_FLAG(dma_mode) \ |
| (((dma_mode) == DMA_GATHER_SCATTER) ? (1 << 7) : 0) |
| |
| enum req_type { |
| AE_CORE_REQ, |
| SE_CORE_REQ, |
| }; |
| |
| enum cipher_type { |
| DES3_CBC = 0x1, |
| DES3_ECB = 0x2, |
| AES_CBC = 0x3, |
| AES_ECB = 0x4, |
| AES_CFB = 0x5, |
| AES_CTR = 0x6, |
| AES_GCM = 0x7, |
| AES_XTS = 0x8 |
| }; |
| |
| enum aes_type { |
| AES_128_BIT = 0x1, |
| AES_192_BIT = 0x2, |
| AES_256_BIT = 0x3 |
| }; |
| |
| union encr_ctrl { |
| u64 flags; |
| struct { |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| u64 enc_cipher:4; |
| u64 reserved1:1; |
| u64 aes_key:2; |
| u64 iv_source:1; |
| u64 hash_type:4; |
| u64 reserved2:3; |
| u64 auth_input_type:1; |
| u64 mac_len:8; |
| u64 reserved3:8; |
| u64 encr_offset:16; |
| u64 iv_offset:8; |
| u64 auth_offset:8; |
| #else |
| u64 auth_offset:8; |
| u64 iv_offset:8; |
| u64 encr_offset:16; |
| u64 reserved3:8; |
| u64 mac_len:8; |
| u64 auth_input_type:1; |
| u64 reserved2:3; |
| u64 hash_type:4; |
| u64 iv_source:1; |
| u64 aes_key:2; |
| u64 reserved1:1; |
| u64 enc_cipher:4; |
| #endif |
| } e; |
| }; |
| |
| struct enc_context { |
| union encr_ctrl enc_ctrl; |
| u8 encr_key[32]; |
| u8 encr_iv[16]; |
| }; |
| |
| struct fchmac_context { |
| u8 ipad[64]; |
| u8 opad[64]; /* or OPAD */ |
| }; |
| |
| struct fc_context { |
| struct enc_context enc; |
| struct fchmac_context hmac; |
| }; |
| |
| struct cvm_enc_ctx { |
| u32 key_len; |
| u8 enc_key[MAX_KEY_SIZE]; |
| }; |
| |
| struct cvm_des3_ctx { |
| u32 key_len; |
| u8 des3_key[MAX_KEY_SIZE]; |
| }; |
| |
| struct cvm_req_ctx { |
| struct cpt_request_info cpt_req; |
| u64 control_word; |
| struct fc_context fctx; |
| }; |
| |
| int cptvf_do_request(void *cptvf, struct cpt_request_info *req); |
| #endif /*_CPTVF_ALGS_H_*/ |