[dpdk-dev,v2,1/2] crypto/aesni_mb: support IPSec Multi-buffer lib v0.46
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Commit Message
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>
---
doc/guides/cryptodevs/aesni_mb.rst | 19 ++++++++++++++++---
doc/guides/rel_notes/release_17_08.rst | 6 ++++++
drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c | 4 ++--
3 files changed, 24 insertions(+), 5 deletions(-)
Comments
On 02/07/17 03:55, Pablo de Lara wrote:
> 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>
@@ -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.
-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
@@ -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
- 17.05 0.45
+ 17.05 - 17.08 0.45 - 0.46
============= ============================
@@ -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"
+
+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.
@@ -75,6 +75,12 @@ New Features
Added support for firmwares with multiple Ethernet ports per physical port.
+* **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
---------------
@@ -220,9 +220,9 @@ static const struct rte_cryptodev_capabilities aesni_mb_pmd_capabilities[] = {
.increment = 8
},
.iv_size = {
- .min = 16,
+ .min = 12,
.max = 16,
- .increment = 0
+ .increment = 4
}
}, }
}, }