From: Eric Biggers ebiggers@google.com
[ Upstream commit c2a90eee29f41630225c9a64d26c425e1d50b401 ]
Add UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE which lets UFS host drivers initialize the blk_crypto_profile themselves rather than have it be initialized by ufshcd-core according to the UFSHCI standard. This is needed to support inline encryption on the "Exynos" UFS controller which has a nonstandard interface.
Reviewed-by: Bart Van Assche bvanassche@acm.org Reviewed-by: Peter Griffin peter.griffin@linaro.org Signed-off-by: Eric Biggers ebiggers@google.com Link: https://lore.kernel.org/r/20240708235330.103590-2-ebiggers@kernel.org Reviewed-by: Alim Akhtar alim.akhtar@samsung.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Stable-dep-of: d34caa89a132 ("scsi: ufs: core: Add a quirk to suppress link_startup_again") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ufs/core/ufshcd-crypto.c | 10 +++++++--- include/ufs/ufshcd.h | 9 +++++++++ 2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/ufs/core/ufshcd-crypto.c b/drivers/ufs/core/ufshcd-crypto.c index f2c4422cab864..debc925ae439b 100644 --- a/drivers/ufs/core/ufshcd-crypto.c +++ b/drivers/ufs/core/ufshcd-crypto.c @@ -159,6 +159,9 @@ int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba) int err = 0; enum blk_crypto_mode_num blk_mode_num;
+ if (hba->quirks & UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE) + return 0; + /* * Don't use crypto if either the hardware doesn't advertise the * standard crypto capability bit *or* if the vendor specific driver @@ -228,9 +231,10 @@ void ufshcd_init_crypto(struct ufs_hba *hba) if (!(hba->caps & UFSHCD_CAP_CRYPTO)) return;
- /* Clear all keyslots - the number of keyslots is (CFGC + 1) */ - for (slot = 0; slot < hba->crypto_capabilities.config_count + 1; slot++) - ufshcd_clear_keyslot(hba, slot); + /* Clear all keyslots. */ + for (slot = 0; slot < hba->crypto_profile.num_slots; slot++) + hba->crypto_profile.ll_ops.keyslot_evict(&hba->crypto_profile, + NULL, slot); }
void ufshcd_crypto_register(struct ufs_hba *hba, struct request_queue *q) diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index e9db9682316a2..21d03510efb66 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -642,6 +642,15 @@ enum ufshcd_quirks { * thus need this quirk to skip related flow. */ UFSHCD_QUIRK_MCQ_BROKEN_RTC = 1 << 21, + + /* + * This quirk needs to be enabled if the host controller supports inline + * encryption but it needs to initialize the crypto capabilities in a + * nonstandard way and/or needs to override blk_crypto_ll_ops. If + * enabled, the standard code won't initialize the blk_crypto_profile; + * ufs_hba_variant_ops::init() must do it instead. + */ + UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE = 1 << 22, };
enum ufshcd_caps {