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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2019 Google LLC
*/
#ifndef _UFSHCD_CRYPTO_H
#define _UFSHCD_CRYPTO_H
#include <scsi/scsi_cmnd.h>
#include "ufshcd.h"
#include "ufshcd-priv.h"
#include "ufshci.h"
#ifdef CONFIG_SCSI_UFS_CRYPTO
static inline void ufshcd_prepare_lrbp_crypto(struct request *rq,
struct ufshcd_lrb *lrbp)
{
if (!rq || !rq->crypt_keyslot) {
lrbp->crypto_key_slot = -1;
return;
}
lrbp->crypto_key_slot = blk_crypto_keyslot_index(rq->crypt_keyslot);
lrbp->data_unit_num = rq->crypt_ctx->bc_dun[0];
}
static inline void
ufshcd_prepare_req_desc_hdr_crypto(struct ufshcd_lrb *lrbp, u32 *dword_0,
u32 *dword_1, u32 *dword_3)
{
if (lrbp->crypto_key_slot >= 0) {
*dword_0 |= UTP_REQ_DESC_CRYPTO_ENABLE_CMD;
*dword_0 |= lrbp->crypto_key_slot;
*dword_1 = lower_32_bits(lrbp->data_unit_num);
*dword_3 = upper_32_bits(lrbp->data_unit_num);
}
}
bool ufshcd_crypto_enable(struct ufs_hba *hba);
int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba);
void ufshcd_init_crypto(struct ufs_hba *hba);
void ufshcd_crypto_register(struct ufs_hba *hba, struct request_queue *q);
#else /* CONFIG_SCSI_UFS_CRYPTO */
static inline void ufshcd_prepare_lrbp_crypto(struct request *rq,
struct ufshcd_lrb *lrbp) { }
static inline void
ufshcd_prepare_req_desc_hdr_crypto(struct ufshcd_lrb *lrbp, u32 *dword_0,
u32 *dword_1, u32 *dword_3) { }
static inline bool ufshcd_crypto_enable(struct ufs_hba *hba)
{
return false;
}
static inline int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba)
{
return 0;
}
static inline void ufshcd_init_crypto(struct ufs_hba *hba) { }
static inline void ufshcd_crypto_register(struct ufs_hba *hba,
struct request_queue *q) { }
#endif /* CONFIG_SCSI_UFS_CRYPTO */
#endif /* _UFSHCD_CRYPTO_H */
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