crypto/aesni_mb: support IPSec Multi-buffer lib v0.46

IPSec Multi-buffer library v0.46 has been released,
which includes, among othe features, support for 12-byte IV,
for AES-CTR, keeping also the previous 16-byte IV,
for backward compatibility reasons.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Declan Doherty <declan.doherty@intel.com>

diff --git a/doc/guides/cryptodevs/aesni_mb.rst b/doc/guides/cryptodevs/aesni_mb.rst
index ecb52a1..79fb37f 100644 (file)
--- a/doc/guides/cryptodevs/aesni_mb.rst
+++ b/doc/guides/cryptodevs/aesni_mb.rst
@@ -1,5 +1,5 @@
 ..  BSD LICENSE
 ..  BSD LICENSE

-    Copyright(c) 2015 Intel Corporation. All rights reserved.
+    Copyright(c) 2015-2017 Intel Corporation. All rights reserved.

 
     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
 
     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions


@@ -76,8 +76,8 @@ Installation
 To build DPDK with the AESNI_MB_PMD the user is required to download the multi-buffer
 library from `here <https://github.com/01org/intel-ipsec-mb>`_
 and compile it on their user system before building DPDK.
 To build DPDK with the AESNI_MB_PMD the user is required to download the multi-buffer
 library from `here <https://github.com/01org/intel-ipsec-mb>`_
 and compile it on their user system before building DPDK.

-The latest version of the library supported by this PMD is v0.45, which
-can be downloaded in `<https://github.com/01org/intel-ipsec-mb/archive/v0.45.zip>`_.
+The latest version of the library supported by this PMD is v0.46, which
+can be downloaded in `<https://github.com/01org/intel-ipsec-mb/archive/v0.46.zip>`_.

 
 .. code-block:: console
 
 
 .. code-block:: console
 


@@ -95,7 +95,7 @@ and the Multi-Buffer library version supported by them:
    =============  ============================
    2.2 - 16.11    0.43 - 0.44
    17.02          0.44
    =============  ============================
    2.2 - 16.11    0.43 - 0.44
    17.02          0.44

-   17.05          0.45
+   17.05+         0.45+

    =============  ============================
 
 
    =============  ============================
 
 


@@ -131,3 +131,16 @@ Example:
 .. code-block:: console
 
     ./l2fwd-crypto -l 6 -n 4 --vdev="crypto_aesni_mb,socket_id=1,max_nb_sessions=128"
 .. code-block:: console
 
     ./l2fwd-crypto -l 6 -n 4 --vdev="crypto_aesni_mb,socket_id=1,max_nb_sessions=128"

+
+Extra notes
+-----------
+
+For AES Counter mode (AES-CTR), the library supports two different sizes for Initialization
+Vector (IV):
+
+* 12 bytes: used mainly for IPSec, as it requires 12 bytes from the user, which internally
+  are appended the counter block (4 bytes), which is set to 1 for the first block
+  (no padding required from the user)
+
+* 16 bytes: when passing 16 bytes, the library will take them and use the last 4 bytes
+  as the initial counter block for the first block.

diff --git a/doc/guides/rel_notes/release_17_08.rst b/doc/guides/rel_notes/release_17_08.rst
index 4fc92c5..55be2a2 100644 (file)
--- a/doc/guides/rel_notes/release_17_08.rst
+++ b/doc/guides/rel_notes/release_17_08.rst
@@ -118,6 +118,12 @@ New Features
 
   Added support for AES-GCM and AES-CTR
 
 
   Added support for AES-GCM and AES-CTR
 

+* **Updated the AESNI MB PMD.**
+
+  The AESNI MB PMD has been updated with additional support for:
+
+    * 12-byte IV on AES Counter Mode, apart from the previous 16-byte IV.
+

 
 Resolved Issues
 ---------------
 
 Resolved Issues
 ---------------

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 d6ae36c..ad32bf9 100644 (file)
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
@@ -227,9 +227,9 @@ static const struct rte_cryptodev_capabilities aesni_mb_pmd_capabilities[] = {
                                        .increment = 8
                                },
                                .iv_size = {
                                        .increment = 8
                                },
                                .iv_size = {

-                                       .min = 16,
+                                       .min = 12,

                                        .max = 16,
                                        .max = 16,

-                                       .increment = 0
+                                       .increment = 4

                                }
                        }, }
                }, }
                                }
                        }, }
                }, }