linux-stable/drivers/scsi/ufs/ufshcd-crypto.h
Eric Biggers d76d9d7d10 scsi: ufs: use devm_blk_ksm_init()
Use the new resource-managed variant of blk_ksm_init() so that the UFS
driver doesn't have to manually call blk_ksm_destroy().

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Satya Tangirala <satyat@google.com>
Link: https://lore.kernel.org/r/20210121082155.111333-3-ebiggers@kernel.org
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-02-01 12:01:56 +01:00

72 lines
1.8 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2019 Google LLC
*/
#ifndef _UFSHCD_CRYPTO_H
#define _UFSHCD_CRYPTO_H
#ifdef CONFIG_SCSI_UFS_CRYPTO
#include "ufshcd.h"
#include "ufshci.h"
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_ksm_get_slot_idx(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_setup_rq_keyslot_manager(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_setup_rq_keyslot_manager(struct ufs_hba *hba,
struct request_queue *q) { }
#endif /* CONFIG_SCSI_UFS_CRYPTO */
#endif /* _UFSHCD_CRYPTO_H */