diff options
| author | Eric Biggers | 2020-07-10 00:20:11 -0700 |
|---|---|---|
| committer | Martin K. Petersen | 2020-07-24 22:09:54 -0400 |
| commit | 1bc726e26ef317579274b4aa9e32425bdf4301db (patch) | |
| tree | 7b0985eb80afe2b5dc27e955f857770fb82fe700 /drivers/scsi/ufs/ufshcd.h | |
| parent | 083dd788e4c12aea12fd9367e2f7c5ee2949b690 (diff) | |
scsi: ufs: Add program_key() variant op
On Snapdragon SoCs, the Linux kernel isn't permitted to directly access the
standard UFS crypto configuration registers. Instead, programming and
evicting keys must be done through vendor-specific SMC calls.
To support this hardware, add a ->program_key() method to 'struct
ufs_hba_variant_ops'. This allows overriding the UFS standard key
programming / eviction procedure.
Link: https://lore.kernel.org/r/20200710072013.177481-5-ebiggers@kernel.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 656c0691c858..b2ef18f1b746 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -281,6 +281,7 @@ struct ufs_pwr_mode_info { * @dbg_register_dump: used to dump controller debug information * @phy_initialization: used to initialize phys * @device_reset: called to issue a reset pulse on the UFS device + * @program_key: program or evict an inline encryption key */ struct ufs_hba_variant_ops { const char *name; @@ -314,6 +315,8 @@ struct ufs_hba_variant_ops { void (*config_scaling_param)(struct ufs_hba *hba, struct devfreq_dev_profile *profile, void *data); + int (*program_key)(struct ufs_hba *hba, + const union ufs_crypto_cfg_entry *cfg, int slot); }; /* clock gating state */ |