This patch provides counter mode support to AES-NI multi-buffer library.

The following cipher algorithm is enabled:
- RTE_CRYPTO_CIPHER_AES_CTR

Signed-off-by: Fan Zhang <roy.fan.zhang at intel.com>
---
 doc/guides/cryptodevs/aesni_mb.rst             |  3 +++
 doc/guides/cryptodevs/overview.rst             |  6 +++---
 doc/guides/rel_notes/release_16_07.rst         |  5 +++++
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c     |  3 +++
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c | 20 ++++++++++++++++++++
 5 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/doc/guides/cryptodevs/aesni_mb.rst 
b/doc/guides/cryptodevs/aesni_mb.rst
index fd5414d..60a8914 100644
--- a/doc/guides/cryptodevs/aesni_mb.rst
+++ b/doc/guides/cryptodevs/aesni_mb.rst
@@ -48,6 +48,9 @@ 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

 Hash algorithms:

diff --git a/doc/guides/cryptodevs/overview.rst 
b/doc/guides/cryptodevs/overview.rst
index e1f33e1..4a84146 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",x,,,,
-   "AES_CTR_192",x,,,,
-   "AES_CTR_256",x,,,,
+   "AES_CTR_128",x,,x,,
+   "AES_CTR_192",x,,x,,
+   "AES_CTR_256",x,,x,,
    "SNOW3G_UEA2",x,,,,x

 Supported Authentication Algorithms
diff --git a/doc/guides/rel_notes/release_16_07.rst 
b/doc/guides/rel_notes/release_16_07.rst
index 84e61c0..4600e81 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 AES-CTR support to AESNI MB PMD.**
+
+  Now AESNI MB PMD supports 128/192/256-bit counter mode AES encryption and
+  decryption.
+
 * **Added support of AES counter mode for Intel QuickAssist devices.**

   Enabled support for the AES CTR algorithm for IntelQuick Assist devices.
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c 
b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
index 3415ac1..ce763bf 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
@@ -222,6 +222,9 @@ aesni_mb_set_session_cipher_parameters(const struct 
aesni_mb_ops *mb_ops,
        case RTE_CRYPTO_CIPHER_AES_CBC:
                sess->cipher.mode = CBC;
                break;
+       case RTE_CRYPTO_CIPHER_AES_CTR:
+               sess->cipher.mode = CNTR;
+               break;
        default:
                MB_LOG_ERR("Unsupported cipher mode parameter");
                return -1;
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c 
b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
index 3806a66..d3c46ac 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
@@ -207,6 +207,26 @@ static const struct rte_cryptodev_capabilities 
aesni_mb_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()
 };

-- 
2.5.5

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