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crypto: qat - set CIPHER capability for DH895XCC

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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: ad1332aa67 ("crypto: qat - add support for capability detection")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Giovanni Cabiddu 2022-04-07 17:54:40 +01:00 committed by Herbert Xu
parent a260436c98
commit 6a23804cb8
1 changed files with 9 additions and 3 deletions
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12
drivers/crypto/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c
View file

@ -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;