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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2019 Google LLC
*/
#ifndef __LINUX_BLK_CRYPTO_H
#define __LINUX_BLK_CRYPTO_H
#include <linux/bio.h>
#define SECTOR_SHIFT 9
#ifdef CONFIG_BLK_INLINE_ENCRYPTION
int blk_crypto_submit_bio(struct bio **bio_ptr);
bool blk_crypto_endio(struct bio *bio);
int blk_crypto_init_key(struct blk_crypto_key *blk_key,
const u8 *raw_key, unsigned int raw_key_size,
bool is_hw_wrapped,
enum blk_crypto_mode_num crypto_mode,
unsigned int dun_bytes,
unsigned int data_unit_size);
int blk_crypto_start_using_mode(enum blk_crypto_mode_num crypto_mode,
unsigned int dun_bytes,
unsigned int data_unit_size,
bool is_hw_wrapped_key,
struct request_queue *q);
int blk_crypto_evict_key(struct request_queue *q,
const struct blk_crypto_key *key);
#else /* CONFIG_BLK_INLINE_ENCRYPTION */
static inline int blk_crypto_submit_bio(struct bio **bio_ptr)
{
return 0;
}
static inline bool blk_crypto_endio(struct bio *bio)
{
return true;
}
#endif /* CONFIG_BLK_INLINE_ENCRYPTION */
#ifdef CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK
int blk_crypto_fallback_init(void);
#else /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
static inline int blk_crypto_fallback_init(void)
{
return 0;
}
#endif /* CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK */
#endif /* __LINUX_BLK_CRYPTO_H */