X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fcryptodevs%2Fsnow3g.rst;h=41c48d69c337b29aea24bffa4f6e30c08f6d13c0;hb=4792d3ea858ef636b4ee8a34e1fcd767174f056a;hp=f6eb538a7be218420b33ff1a0da772cc8a3f1ea8;hpb=6aef763816fd3561c4ba825a0322b3bff3ab9d37;p=dpdk.git

diff --git a/doc/guides/cryptodevs/snow3g.rst b/doc/guides/cryptodevs/snow3g.rst
index f6eb538a7b..41c48d69c3 100644
--- a/doc/guides/cryptodevs/snow3g.rst
+++ b/doc/guides/cryptodevs/snow3g.rst
@@ -58,7 +58,7 @@ Limitations
 Installation
 ------------
 
-To build DPDK with the KASUMI_PMD the user is required to download
+To build DPDK with the SNOW3G_PMD the user is required to download
 the export controlled ``libsso_snow3g`` library, by requesting it from
 `<https://networkbuilders.intel.com/network-technologies/dpdk>`_.
 Once approval has been granted, the user needs to log in
@@ -69,6 +69,17 @@ on their system before building DPDK::
 
    make snow3G
 
+**Note**: When encrypting with SNOW3G UEA2, by default the library
+encrypts blocks of 4 bytes, regardless the number of bytes to
+be encrypted provided (which leads to a possible buffer overflow).
+To avoid this situation, it is necessary not to pass
+3GPP_SAFE_BUFFERS as a compilation flag.
+For this, in the Makefile of the library, make sure that this flag
+is commented out.::
+
+  #EXTRA_CFLAGS  += -D_3GPP_SAFE_BUFFERS
+
+
 Initialization
 --------------
 
@@ -83,9 +94,9 @@ In order to enable this virtual crypto PMD, user must:
 
 To use the PMD in an application, user must:
 
-* Call rte_eal_vdev_init("crypto_snow3g") within the application.
+* Call rte_vdev_init("crypto_snow3g") within the application.
 
-* Use --vdev="crypto_snow3g" in the EAL options, which will call rte_eal_vdev_init() internally.
+* Use --vdev="crypto_snow3g" in the EAL options, which will call rte_vdev_init() internally.
 
 The following parameters (all optional) can be provided in the previous two calls:
 
@@ -100,4 +111,4 @@ Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -c 40 -n 4 --vdev="crypto_snow3g,socket_id=1,max_nb_sessions=128"
+    ./l2fwd-crypto -l 6 -n 4 --vdev="crypto_snow3g,socket_id=1,max_nb_sessions=128"