diff options
| author | Giovanni Cabiddu <giovanni.cabiddu@intel.com> | 2021-12-16 10:13:12 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-12-24 04:18:23 +0100 |
| commit | 547bde7bd4ecd78f36f98744e6c9a0999e52da5a (patch) | |
| tree | 9ce5465314f3403119a601a0cffe8da585c70590 /drivers/crypto | |
| parent | crypto: qat - get compression extended capabilities (diff) | |
| download | linux-547bde7bd4ecd78f36f98744e6c9a0999e52da5a.tar.xz linux-547bde7bd4ecd78f36f98744e6c9a0999e52da5a.zip | |
crypto: qat - set CIPHER capability for QAT GEN2
Set the CIPHER capability for QAT GEN2 devices if the hardware supports
it. This is done if both the CIPHER and the AUTHENTICATION engines are
available on the device.
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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_gen2_hw_data.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c b/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c index 3b48fdaaff6d..3ea26f2f4a22 100644 --- a/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c +++ b/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c @@ -211,17 +211,23 @@ u32 adf_gen2_get_accel_cap(struct adf_accel_dev *accel_dev) u32 legfuses; u32 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 ((straps | fuses) & ADF_POWERGATE_PKE) capabilities &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC; |