Commit 6a23804c authored by Giovanni Cabiddu's avatar Giovanni Cabiddu Committed by Herbert Xu
Browse files

crypto: qat - set CIPHER capability for DH895XCC 



Set the CIPHER capability for QAT DH895XCC devices if the hardware supports
it. This is done if both the CIPHER and the AUTHENTICATION engines are
available on the device.

Fixes: ad1332aa ("crypto: qat - add support for capability detection")
Signed-off-by: default avatarGiovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: default avatarMarco Chiappero <marco.chiappero@intel.com>
Reviewed-by: default avatarMarco Chiappero <marco.chiappero@intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a260436c

drivers/crypto/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c

+9 −3
Original line number Diff line number Diff line
@@ -58,17 +58,23 @@ static u32 get_accel_cap(struct adf_accel_dev *accel_dev) 


	capabilities = ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC |

		       ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC |

		       ICP_ACCEL_CAPABILITIES_AUTHENTICATION;

		       ICP_ACCEL_CAPABILITIES_AUTHENTICATION |

		       ICP_ACCEL_CAPABILITIES_CIPHER;



	/* Read accelerator capabilities mask */

	pci_read_config_dword(pdev, ADF_DEVICE_LEGFUSE_OFFSET, &legfuses);



	if (legfuses & ICP_ACCEL_MASK_CIPHER_SLICE)

	/* A set bit in legfuses means the feature is OFF in this SKU */

	if (legfuses & ICP_ACCEL_MASK_CIPHER_SLICE) {

		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC;

		capabilities &= ~ICP_ACCEL_CAPABILITIES_CIPHER;

	}

	if (legfuses & ICP_ACCEL_MASK_PKE_SLICE)

		capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC;

	if (legfuses & ICP_ACCEL_MASK_AUTH_SLICE)

	if (legfuses & ICP_ACCEL_MASK_AUTH_SLICE) {

		capabilities &= ~ICP_ACCEL_CAPABILITIES_AUTHENTICATION;

		capabilities &= ~ICP_ACCEL_CAPABILITIES_CIPHER;

	}

	if (legfuses & ICP_ACCEL_MASK_COMPRESS_SLICE)

		capabilities &= ~ICP_ACCEL_CAPABILITIES_COMPRESSION;