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9739f5f93b
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>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2019 - 2021
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*
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* Richard van Schagen <vschagen@icloud.com>
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* Christian Marangi <ansuelsmth@gmail.com
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*/
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#ifndef _EIP93_CIPHER_H_
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#define _EIP93_CIPHER_H_
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#include "eip93-main.h"
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struct eip93_crypto_ctx {
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struct eip93_device *eip93;
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u32 flags;
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struct sa_record *sa_record;
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u32 sa_nonce;
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int blksize;
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dma_addr_t sa_record_base;
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/* AEAD specific */
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unsigned int authsize;
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unsigned int assoclen;
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bool set_assoc;
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enum eip93_alg_type type;
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};
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struct eip93_cipher_reqctx {
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u16 desc_flags;
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u16 flags;
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unsigned int blksize;
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unsigned int ivsize;
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unsigned int textsize;
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unsigned int assoclen;
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unsigned int authsize;
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dma_addr_t sa_record_base;
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struct sa_state *sa_state;
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dma_addr_t sa_state_base;
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struct eip93_descriptor *cdesc;
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struct scatterlist *sg_src;
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struct scatterlist *sg_dst;
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int src_nents;
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int dst_nents;
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struct sa_state *sa_state_ctr;
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dma_addr_t sa_state_ctr_base;
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};
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int check_valid_request(struct eip93_cipher_reqctx *rctx);
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void eip93_unmap_dma(struct eip93_device *eip93, struct eip93_cipher_reqctx *rctx,
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struct scatterlist *reqsrc, struct scatterlist *reqdst);
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void eip93_skcipher_handle_result(struct crypto_async_request *async, int err);
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int eip93_send_req(struct crypto_async_request *async,
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const u8 *reqiv, struct eip93_cipher_reqctx *rctx);
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void eip93_handle_result(struct eip93_device *eip93, struct eip93_cipher_reqctx *rctx,
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u8 *reqiv);
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#endif /* _EIP93_CIPHER_H_ */
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