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/* SPDX-License-Identifier: GPL-2.0
* Marvell OcteonTX CPT driver
*
* Copyright (C) 2019 Marvell International Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __OTX_CPT_ALGS_H
#define __OTX_CPT_ALGS_H
#include <crypto/hash.h>
#include "otx_cpt_common.h"
#define OTX_CPT_MAX_ENC_KEY_SIZE 32
#define OTX_CPT_MAX_HASH_KEY_SIZE 64
#define OTX_CPT_MAX_KEY_SIZE (OTX_CPT_MAX_ENC_KEY_SIZE + \
OTX_CPT_MAX_HASH_KEY_SIZE)
enum otx_cpt_request_type {
OTX_CPT_ENC_DEC_REQ = 0x1,
OTX_CPT_AEAD_ENC_DEC_REQ = 0x2,
OTX_CPT_AEAD_ENC_DEC_NULL_REQ = 0x3,
OTX_CPT_PASSTHROUGH_REQ = 0x4
};
enum otx_cpt_major_opcodes {
OTX_CPT_MAJOR_OP_MISC = 0x01,
OTX_CPT_MAJOR_OP_FC = 0x33,
OTX_CPT_MAJOR_OP_HMAC = 0x35,
};
enum otx_cpt_req_type {
OTX_CPT_AE_CORE_REQ,
OTX_CPT_SE_CORE_REQ
};
enum otx_cpt_cipher_type {
OTX_CPT_CIPHER_NULL = 0x0,
OTX_CPT_DES3_CBC = 0x1,
OTX_CPT_DES3_ECB = 0x2,
OTX_CPT_AES_CBC = 0x3,
OTX_CPT_AES_ECB = 0x4,
OTX_CPT_AES_CFB = 0x5,
OTX_CPT_AES_CTR = 0x6,
OTX_CPT_AES_GCM = 0x7,
OTX_CPT_AES_XTS = 0x8
};
enum otx_cpt_mac_type {
OTX_CPT_MAC_NULL = 0x0,
OTX_CPT_MD5 = 0x1,
OTX_CPT_SHA1 = 0x2,
OTX_CPT_SHA224 = 0x3,
OTX_CPT_SHA256 = 0x4,
OTX_CPT_SHA384 = 0x5,
OTX_CPT_SHA512 = 0x6,
OTX_CPT_GMAC = 0x7
};
enum otx_cpt_aes_key_len {
OTX_CPT_AES_128_BIT = 0x1,
OTX_CPT_AES_192_BIT = 0x2,
OTX_CPT_AES_256_BIT = 0x3
};
union otx_cpt_encr_ctrl {
__be64 flags;
u64 cflags;
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
u64 enc_cipher:4;
u64 reserved1:1;
u64 aes_key:2;
u64 iv_source:1;
u64 mac_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 mac_type:4;
u64 iv_source:1;
u64 aes_key:2;
u64 reserved1:1;
u64 enc_cipher:4;
#endif
} e;
};
struct otx_cpt_cipher {
const char *name;
u8 value;
};
struct otx_cpt_enc_context {
union otx_cpt_encr_ctrl enc_ctrl;
u8 encr_key[32];
u8 encr_iv[16];
};
union otx_cpt_fchmac_ctx {
struct {
u8 ipad[64];
u8 opad[64];
} e;
struct {
u8 hmac_calc[64]; /* HMAC calculated */
u8 hmac_recv[64]; /* HMAC received */
} s;
};
struct otx_cpt_fc_ctx {
struct otx_cpt_enc_context enc;
union otx_cpt_fchmac_ctx hmac;
};
struct otx_cpt_enc_ctx {
u32 key_len;
u8 enc_key[OTX_CPT_MAX_KEY_SIZE];
u8 cipher_type;
u8 key_type;
};
struct otx_cpt_des3_ctx {
u32 key_len;
u8 des3_key[OTX_CPT_MAX_KEY_SIZE];
};
union otx_cpt_offset_ctrl_word {
__be64 flags;
u64 cflags;
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
u64 reserved:32;
u64 enc_data_offset:16;
u64 iv_offset:8;
u64 auth_offset:8;
#else
u64 auth_offset:8;
u64 iv_offset:8;
u64 enc_data_offset:16;
u64 reserved:32;
#endif
} e;
};
struct otx_cpt_req_ctx {
struct otx_cpt_req_info cpt_req;
union otx_cpt_offset_ctrl_word ctrl_word;
struct otx_cpt_fc_ctx fctx;
};
struct otx_cpt_sdesc {
struct shash_desc shash;
};
struct otx_cpt_aead_ctx {
u8 key[OTX_CPT_MAX_KEY_SIZE];
struct crypto_shash *hashalg;
struct otx_cpt_sdesc *sdesc;
u8 *ipad;
u8 *opad;
u32 enc_key_len;
u32 auth_key_len;
u8 cipher_type;
u8 mac_type;
u8 key_type;
u8 is_trunc_hmac;
};
int otx_cpt_crypto_init(struct pci_dev *pdev, struct module *mod,
enum otx_cptpf_type pf_type,
enum otx_cptvf_type engine_type,
int num_queues, int num_devices);
void otx_cpt_crypto_exit(struct pci_dev *pdev, struct module *mod,
enum otx_cptvf_type engine_type);
void otx_cpt_callback(int status, void *arg, void *req);
#endif /* __OTX_CPT_ALGS_H */