diff mbox series

[04/24] crypto: qat - extend crypto capability detection for 4xxx

Message ID 20211216091334.402420-5-marco.chiappero@intel.com
State New
Headers show
Series crypto: qat - PFVF updates and improved GEN4 support | expand

Commit Message

Marco Chiappero Dec. 16, 2021, 9:13 a.m. UTC 
From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>

Extended the capability detection logic for 4xxx devices.
Mask out unsupported algorithms and services based on the value read in
the fuse register.

This includes only capabilities for the crypto service.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
---
 .../crypto/qat/qat_4xxx/adf_4xxx_hw_data.c    | 29 +++++++++++++++++--
 drivers/crypto/qat/qat_common/icp_qat_hw.h    |  9 +++++-
 2 files changed, 34 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
index 4658b7bf76da..d320c50c4561 100644
--- a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
+++ b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
@@ -98,18 +98,41 @@  static u32 get_accel_cap(struct adf_accel_dev *accel_dev)
 	u32 fusectl1;
 	u32 capabilities = ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC |
 			   ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC |
+			   ICP_ACCEL_CAPABILITIES_CIPHER |
 			   ICP_ACCEL_CAPABILITIES_AUTHENTICATION |
+			   ICP_ACCEL_CAPABILITIES_SHA3 |
+			   ICP_ACCEL_CAPABILITIES_SHA3_EXT |
+			   ICP_ACCEL_CAPABILITIES_HKDF |
+			   ICP_ACCEL_CAPABILITIES_ECEDMONT |
+			   ICP_ACCEL_CAPABILITIES_CHACHA_POLY |
+			   ICP_ACCEL_CAPABILITIES_AESGCM_SPC |
 			   ICP_ACCEL_CAPABILITIES_AES_V2;
 
 	/* Read accelerator capabilities mask */
 	pci_read_config_dword(pdev, ADF_4XXX_FUSECTL1_OFFSET, &fusectl1);
 
-	if (fusectl1 & ICP_ACCEL_4XXX_MASK_CIPHER_SLICE)
+	/* A set bit in fusectl1 means the feature is OFF in this SKU */
+	if (fusectl1 & ICP_ACCEL_4XXX_MASK_CIPHER_SLICE) {
 		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC;
-	if (fusectl1 & ICP_ACCEL_4XXX_MASK_AUTH_SLICE)
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_HKDF;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
+	}
+	if (fusectl1 & ICP_ACCEL_4XXX_MASK_UCS_SLICE) {
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_CHACHA_POLY;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_AESGCM_SPC;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_AES_V2;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
+	}
+	if (fusectl1 & ICP_ACCEL_4XXX_MASK_AUTH_SLICE) {
 		capabilities &= ~ICP_ACCEL_CAPABILITIES_AUTHENTICATION;
-	if (fusectl1 & ICP_ACCEL_4XXX_MASK_PKE_SLICE)
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_SHA3;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_SHA3_EXT;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
+	}
+	if (fusectl1 & ICP_ACCEL_4XXX_MASK_PKE_SLICE) {
 		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC;
+		capabilities &= ~ICP_ACCEL_CAPABILITIES_ECEDMONT;
+	}
 
 	return capabilities;
 }
diff --git a/drivers/crypto/qat/qat_common/icp_qat_hw.h b/drivers/crypto/qat/qat_common/icp_qat_hw.h
index e39e8a2d51a7..5770b2b2c09e 100644
--- a/drivers/crypto/qat/qat_common/icp_qat_hw.h
+++ b/drivers/crypto/qat/qat_common/icp_qat_hw.h
@@ -91,7 +91,14 @@  enum icp_qat_capabilities_mask {
 	ICP_ACCEL_CAPABILITIES_RAND = BIT(7),
 	ICP_ACCEL_CAPABILITIES_ZUC = BIT(8),
 	ICP_ACCEL_CAPABILITIES_SHA3 = BIT(9),
-	/* Bits 10-25 are currently reserved */
+	/* Bits 10-11 are currently reserved */
+	ICP_ACCEL_CAPABILITIES_HKDF = BIT(12),
+	ICP_ACCEL_CAPABILITIES_ECEDMONT = BIT(13),
+	/* Bit 14 is currently reserved */
+	ICP_ACCEL_CAPABILITIES_SHA3_EXT = BIT(15),
+	ICP_ACCEL_CAPABILITIES_AESGCM_SPC = BIT(16),
+	ICP_ACCEL_CAPABILITIES_CHACHA_POLY = BIT(17),
+	/* Bits 18-25 are currently reserved */
 	ICP_ACCEL_CAPABILITIES_AES_V2 = BIT(26)
 };