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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/crypto/inside-secure/eip93/eip93-cipher.h
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/* 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 <[email protected]>

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 * Christian Marangi <[email protected]

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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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