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crypto: eip93 - Add Inside Secure SafeXcel EIP-93 crypto engine support

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Add support for the Inside Secure SafeXcel EIP-93 Crypto Engine used on
Mediatek MT7621 SoC and new Airoha SoC.

EIP-93 IP supports AES/DES/3DES ciphers in ECB/CBC and CTR modes as well as
authenc(HMAC(x), cipher(y)) using HMAC MD5, SHA1, SHA224 and SHA256.

EIP-93 provide regs to signal support for specific chipers and the
driver dynamically register only the supported one by the chip.

Signed-off-by: Richard van Schagen <vschagen@icloud.com>
Co-developed-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Marangi
2025-01-14 13:36:36 +01:00
committed by Herbert Xu
parent bbbbd1d149
commit 9739f5f93b
18 changed files with 4056 additions and 0 deletions
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60
drivers/crypto/inside-secure/eip93/eip93-cipher.h Normal file
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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2019 - 2021
*
* Richard van Schagen <vschagen@icloud.com>
* Christian Marangi <ansuelsmth@gmail.com
*/
#ifndef _EIP93_CIPHER_H_
#define _EIP93_CIPHER_H_
#include "eip93-main.h"
struct eip93_crypto_ctx {
struct eip93_device *eip93;
u32 flags;
struct sa_record *sa_record;
u32 sa_nonce;
int blksize;
dma_addr_t sa_record_base;
/* AEAD specific */
unsigned int authsize;
unsigned int assoclen;
bool set_assoc;
enum eip93_alg_type type;
};
struct eip93_cipher_reqctx {
u16 desc_flags;
u16 flags;
unsigned int blksize;
unsigned int ivsize;
unsigned int textsize;
unsigned int assoclen;
unsigned int authsize;
dma_addr_t sa_record_base;
struct sa_state *sa_state;
dma_addr_t sa_state_base;
struct eip93_descriptor *cdesc;
struct scatterlist *sg_src;
struct scatterlist *sg_dst;
int src_nents;
int dst_nents;
struct sa_state *sa_state_ctr;
dma_addr_t sa_state_ctr_base;
};
int check_valid_request(struct eip93_cipher_reqctx *rctx);
void eip93_unmap_dma(struct eip93_device *eip93, struct eip93_cipher_reqctx *rctx,
struct scatterlist *reqsrc, struct scatterlist *reqdst);
void eip93_skcipher_handle_result(struct crypto_async_request *async, int err);
int eip93_send_req(struct crypto_async_request *async,
const u8 *reqiv, struct eip93_cipher_reqctx *rctx);
void eip93_handle_result(struct eip93_device *eip93, struct eip93_cipher_reqctx *rctx,
u8 *reqiv);
#endif /* _EIP93_CIPHER_H_ */