diff options
Diffstat (limited to 'drivers/ufs/core/ufshcd-crypto.h')
-rw-r--r-- | drivers/ufs/core/ufshcd-crypto.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/ufs/core/ufshcd-crypto.h b/drivers/ufs/core/ufshcd-crypto.h new file mode 100644 index 0000000000..be8596f20b --- /dev/null +++ b/drivers/ufs/core/ufshcd-crypto.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2019 Google LLC + */ + +#ifndef _UFSHCD_CRYPTO_H +#define _UFSHCD_CRYPTO_H + +#include <scsi/scsi_cmnd.h> +#include <ufs/ufshcd.h> +#include "ufshcd-priv.h" +#include <ufs/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, + struct request_desc_header *h) +{ + if (lrbp->crypto_key_slot < 0) + return; + h->enable_crypto = 1; + h->cci = lrbp->crypto_key_slot; + h->dunl = cpu_to_le32(lower_32_bits(lrbp->data_unit_num)); + h->dunu = cpu_to_le32(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, + struct request_desc_header *h) { } + +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 */ |