1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright 2019 Google LLC
4 */
5
6#ifndef _UFSHCD_CRYPTO_H
7#define _UFSHCD_CRYPTO_H
8
9#include <scsi/scsi_cmnd.h>
10#include <ufs/ufshcd.h>
11#include "ufshcd-priv.h"
12#include <ufs/ufshci.h>
13
14#ifdef CONFIG_SCSI_UFS_CRYPTO
15
16static inline void ufshcd_prepare_lrbp_crypto(struct request *rq,
17					      struct ufshcd_lrb *lrbp)
18{
19	if (!rq || !rq->crypt_keyslot) {
20		lrbp->crypto_key_slot = -1;
21		return;
22	}
23
24	lrbp->crypto_key_slot = blk_crypto_keyslot_index(rq->crypt_keyslot);
25	lrbp->data_unit_num = rq->crypt_ctx->bc_dun[0];
26}
27
28static inline void
29ufshcd_prepare_req_desc_hdr_crypto(struct ufshcd_lrb *lrbp,
30				   struct request_desc_header *h)
31{
32	if (lrbp->crypto_key_slot < 0)
33		return;
34	h->enable_crypto = 1;
35	h->cci = lrbp->crypto_key_slot;
36	h->dunl = cpu_to_le32(lower_32_bits(lrbp->data_unit_num));
37	h->dunu = cpu_to_le32(upper_32_bits(lrbp->data_unit_num));
38}
39
40bool ufshcd_crypto_enable(struct ufs_hba *hba);
41
42int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba);
43
44void ufshcd_init_crypto(struct ufs_hba *hba);
45
46void ufshcd_crypto_register(struct ufs_hba *hba, struct request_queue *q);
47
48#else /* CONFIG_SCSI_UFS_CRYPTO */
49
50static inline void ufshcd_prepare_lrbp_crypto(struct request *rq,
51					      struct ufshcd_lrb *lrbp) { }
52
53static inline void
54ufshcd_prepare_req_desc_hdr_crypto(struct ufshcd_lrb *lrbp,
55				   struct request_desc_header *h) { }
56
57static inline bool ufshcd_crypto_enable(struct ufs_hba *hba)
58{
59	return false;
60}
61
62static inline int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba)
63{
64	return 0;
65}
66
67static inline void ufshcd_init_crypto(struct ufs_hba *hba) { }
68
69static inline void ufshcd_crypto_register(struct ufs_hba *hba,
70					  struct request_queue *q) { }
71
72#endif /* CONFIG_SCSI_UFS_CRYPTO */
73
74#endif /* _UFSHCD_CRYPTO_H */
75