[dpdk-dev] [PATCH 1/2] qat: add AES counter mode capability
Arek Kusztal
arkadiuszx.kusztal at intel.com
Thu May 5 15:33:58 CEST 2016
Added possibility for AES to work in counter mode
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
---
doc/guides/cryptodevs/overview.rst | 6 +++---
doc/guides/cryptodevs/qat.rst | 3 +++
doc/guides/rel_notes/release_16_07.rst | 5 +++++
drivers/crypto/qat/qat_crypto.c | 29 ++++++++++++++++++++++++++++-
4 files changed, 39 insertions(+), 4 deletions(-)
diff --git a/doc/guides/cryptodevs/overview.rst b/doc/guides/cryptodevs/overview.rst
index 9f9af43..e1f33e1 100644
--- a/doc/guides/cryptodevs/overview.rst
+++ b/doc/guides/cryptodevs/overview.rst
@@ -55,9 +55,9 @@ Supported Cipher Algorithms
"AES_CBC_128",x,,x,,
"AES_CBC_192",x,,x,,
"AES_CBC_256",x,,x,,
- "AES_CTR_128",,,,,
- "AES_CTR_192",,,,,
- "AES_CTR_256",,,,,
+ "AES_CTR_128",x,,,,
+ "AES_CTR_192",x,,,,
+ "AES_CTR_256",x,,,,
"SNOW3G_UEA2",x,,,,x
Supported Authentication Algorithms
diff --git a/doc/guides/cryptodevs/qat.rst b/doc/guides/cryptodevs/qat.rst
index 4b8f782..cae1958 100644
--- a/doc/guides/cryptodevs/qat.rst
+++ b/doc/guides/cryptodevs/qat.rst
@@ -44,6 +44,9 @@ Cipher algorithms:
* ``RTE_CRYPTO_SYM_CIPHER_AES128_CBC``
* ``RTE_CRYPTO_SYM_CIPHER_AES192_CBC``
* ``RTE_CRYPTO_SYM_CIPHER_AES256_CBC``
+* ``RTE_CRYPTO_SYM_CIPHER_AES128_CTR``
+* ``RTE_CRYPTO_SYM_CIPHER_AES192_CTR``
+* ``RTE_CRYPTO_SYM_CIPHER_AES256_CTR``
* ``RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2``
* ``RTE_CRYPTO_CIPHER_AES_GCM``
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index 001888f..1d90a5a 100644
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -34,6 +34,11 @@ This section should contain new features added in this release. Sample format:
Refer to the previous release notes for examples.
+* **Added support of AES counter mode for Intel QuickAssist devices.**
+
+ Enabled support for the AES CTR algorithm for Intel QuickAssist devices.
+ Provided support for algorithm-chaining operations.
+
Resolved Issues
---------------
diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 495ea1c..858f632 100644
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -263,6 +263,26 @@ static const struct rte_cryptodev_capabilities qat_pmd_capabilities[] = {
}, }
}, }
},
+ { /* AES CTR */
+ .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
+ {.sym = {
+ .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
+ {.cipher = {
+ .algo = RTE_CRYPTO_CIPHER_AES_CTR,
+ .block_size = 16,
+ .key_size = {
+ .min = 16,
+ .max = 32,
+ .increment = 8
+ },
+ .iv_size = {
+ .min = 16,
+ .max = 16,
+ .increment = 0
+ }
+ }, }
+ }, }
+ },
RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};
@@ -368,6 +388,14 @@ qat_crypto_sym_configure_session_cipher(struct rte_cryptodev *dev,
}
session->qat_mode = ICP_QAT_HW_CIPHER_CTR_MODE;
break;
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ if (qat_alg_validate_aes_key(cipher_xform->key.length,
+ &session->qat_cipher_alg) != 0) {
+ PMD_DRV_LOG(ERR, "Invalid AES cipher key size");
+ goto error_out;
+ }
+ session->qat_mode = ICP_QAT_HW_CIPHER_CTR_MODE;
+ break;
case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
if (qat_alg_validate_snow3g_key(cipher_xform->key.length,
&session->qat_cipher_alg) != 0) {
@@ -380,7 +408,6 @@ qat_crypto_sym_configure_session_cipher(struct rte_cryptodev *dev,
case RTE_CRYPTO_CIPHER_3DES_ECB:
case RTE_CRYPTO_CIPHER_3DES_CBC:
case RTE_CRYPTO_CIPHER_AES_ECB:
- case RTE_CRYPTO_CIPHER_AES_CTR:
case RTE_CRYPTO_CIPHER_AES_CCM:
case RTE_CRYPTO_CIPHER_KASUMI_F8:
PMD_DRV_LOG(ERR, "Crypto: Unsupported Cipher alg %u",
--
2.1.0
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