/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2019 Google LLC
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*/
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#ifndef _UFSHCD_CRYPTO_H
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#define _UFSHCD_CRYPTO_H
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#ifdef CONFIG_SCSI_UFS_CRYPTO
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#include <linux/keyslot-manager.h>
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#include "ufshcd.h"
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#include "ufshci.h"
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static inline int ufshcd_num_keyslots(struct ufs_hba *hba)
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{
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return hba->crypto_capabilities.config_count + 1;
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}
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static inline bool ufshcd_keyslot_valid(struct ufs_hba *hba, unsigned int slot)
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{
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/*
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* The actual number of configurations supported is (CFGC+1), so slot
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* numbers range from 0 to config_count inclusive.
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*/
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return slot < ufshcd_num_keyslots(hba);
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}
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static inline bool ufshcd_hba_is_crypto_supported(struct ufs_hba *hba)
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{
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return hba->crypto_capabilities.reg_val != 0;
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}
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static inline bool ufshcd_is_crypto_enabled(struct ufs_hba *hba)
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{
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return hba->caps & UFSHCD_CAP_CRYPTO;
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}
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/* Functions implementing UFSHCI v2.1 specification behaviour */
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int ufshcd_crypto_cap_find(struct ufs_hba *hba,
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enum blk_crypto_mode_num crypto_mode,
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unsigned int data_unit_size);
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int ufshcd_prepare_lrbp_crypto_spec(struct ufs_hba *hba,
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struct scsi_cmnd *cmd,
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struct ufshcd_lrb *lrbp);
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void ufshcd_crypto_enable_spec(struct ufs_hba *hba);
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void ufshcd_crypto_disable_spec(struct ufs_hba *hba);
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struct keyslot_mgmt_ll_ops;
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int ufshcd_hba_init_crypto_spec(struct ufs_hba *hba,
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const struct keyslot_mgmt_ll_ops *ksm_ops);
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void ufshcd_crypto_setup_rq_keyslot_manager_spec(struct ufs_hba *hba,
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struct request_queue *q);
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void ufshcd_crypto_destroy_rq_keyslot_manager_spec(struct ufs_hba *hba,
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struct request_queue *q);
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static inline bool ufshcd_lrbp_crypto_enabled(struct ufshcd_lrb *lrbp)
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{
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return lrbp->crypto_enable;
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}
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/* Crypto Variant Ops Support */
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void ufshcd_crypto_enable(struct ufs_hba *hba);
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void ufshcd_crypto_disable(struct ufs_hba *hba);
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int ufshcd_hba_init_crypto(struct ufs_hba *hba);
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void ufshcd_crypto_setup_rq_keyslot_manager(struct ufs_hba *hba,
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struct request_queue *q);
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void ufshcd_crypto_destroy_rq_keyslot_manager(struct ufs_hba *hba,
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struct request_queue *q);
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int ufshcd_prepare_lrbp_crypto(struct ufs_hba *hba,
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struct scsi_cmnd *cmd,
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struct ufshcd_lrb *lrbp);
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int ufshcd_map_sg_crypto(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
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int ufshcd_complete_lrbp_crypto(struct ufs_hba *hba,
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struct scsi_cmnd *cmd,
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struct ufshcd_lrb *lrbp);
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void ufshcd_crypto_debug(struct ufs_hba *hba);
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int ufshcd_crypto_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op);
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int ufshcd_crypto_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op);
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void ufshcd_crypto_set_vops(struct ufs_hba *hba,
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struct ufs_hba_crypto_variant_ops *crypto_vops);
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#else /* CONFIG_SCSI_UFS_CRYPTO */
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static inline bool ufshcd_keyslot_valid(struct ufs_hba *hba,
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unsigned int slot)
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{
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return false;
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}
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static inline bool ufshcd_hba_is_crypto_supported(struct ufs_hba *hba)
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{
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return false;
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}
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static inline bool ufshcd_is_crypto_enabled(struct ufs_hba *hba)
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{
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return false;
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}
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static inline void ufshcd_crypto_enable(struct ufs_hba *hba) { }
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static inline void ufshcd_crypto_disable(struct ufs_hba *hba) { }
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static inline int ufshcd_hba_init_crypto(struct ufs_hba *hba)
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{
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return 0;
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}
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static inline void ufshcd_crypto_setup_rq_keyslot_manager(struct ufs_hba *hba,
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struct request_queue *q) { }
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static inline void ufshcd_crypto_destroy_rq_keyslot_manager(struct ufs_hba *hba,
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struct request_queue *q) { }
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static inline int ufshcd_prepare_lrbp_crypto(struct ufs_hba *hba,
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struct scsi_cmnd *cmd,
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struct ufshcd_lrb *lrbp)
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{
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return 0;
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}
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static inline int ufshcd_map_sg_crypto(struct ufs_hba *hba,
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struct ufshcd_lrb *lrbp)
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{
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return 0;
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}
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static inline bool ufshcd_lrbp_crypto_enabled(struct ufshcd_lrb *lrbp)
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{
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return false;
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}
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static inline int ufshcd_complete_lrbp_crypto(struct ufs_hba *hba,
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struct scsi_cmnd *cmd,
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struct ufshcd_lrb *lrbp)
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{
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return 0;
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}
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static inline void ufshcd_crypto_debug(struct ufs_hba *hba) { }
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static inline int ufshcd_crypto_suspend(struct ufs_hba *hba,
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enum ufs_pm_op pm_op)
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{
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return 0;
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}
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static inline int ufshcd_crypto_resume(struct ufs_hba *hba,
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enum ufs_pm_op pm_op)
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{
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return 0;
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}
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static inline void ufshcd_crypto_set_vops(struct ufs_hba *hba,
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struct ufs_hba_crypto_variant_ops *crypto_vops) { }
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#endif /* CONFIG_SCSI_UFS_CRYPTO */
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#endif /* _UFSHCD_CRYPTO_H */
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