18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * drivers/hyperhold/hp_device.h 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (c) 2020-2022 Huawei Technologies Co., Ltd. 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#ifndef _HP_DEVICE_H_ 98c2ecf20Sopenharmony_ci#define _HP_DEVICE_H_ 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#include <linux/kernel.h> 128c2ecf20Sopenharmony_ci#include <linux/blkdev.h> 138c2ecf20Sopenharmony_ci#include <crypto/skcipher.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_cienum { 168c2ecf20Sopenharmony_ci HP_DEV_ENCRYPT, 178c2ecf20Sopenharmony_ci HP_DEV_DECRYPT, 188c2ecf20Sopenharmony_ci}; 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_cistruct hp_device { 218c2ecf20Sopenharmony_ci struct file *filp; 228c2ecf20Sopenharmony_ci struct block_device *bdev; 238c2ecf20Sopenharmony_ci u32 old_block_size; 248c2ecf20Sopenharmony_ci u64 dev_size; 258c2ecf20Sopenharmony_ci u32 sec_size; 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci struct crypto_skcipher *ctfm; 288c2ecf20Sopenharmony_ci struct blk_crypto_key *blk_key; 298c2ecf20Sopenharmony_ci}; 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_civoid unbind_bdev(struct hp_device *dev); 328c2ecf20Sopenharmony_cibool bind_bdev(struct hp_device *dev, const char *name); 338c2ecf20Sopenharmony_cibool crypto_init(struct hp_device *dev, bool soft); 348c2ecf20Sopenharmony_civoid crypto_deinit(struct hp_device *dev); 358c2ecf20Sopenharmony_ciint soft_crypt_page(struct crypto_skcipher *ctfm, 368c2ecf20Sopenharmony_ci struct page *dst_page, struct page *src_page, unsigned int op); 378c2ecf20Sopenharmony_civoid inline_crypt_bio(struct blk_crypto_key *blk_key, struct bio *bio); 388c2ecf20Sopenharmony_ci#endif 39