[dpdk-dev,1/2] docs: add cryptodevs guide overview section

diff --git a/doc/guides/cryptodevs/index.rst b/doc/guides/cryptodevs/index.rst
index 85193da..a3f11f3 100644
--- a/doc/guides/cryptodevs/index.rst
+++ b/doc/guides/cryptodevs/index.rst
@@ -35,8 +35,9 @@  Crypto Device Drivers
     :maxdepth: 2
     :numbered:
 
+    overview
     aesni_mb
     aesni_gcm
     null
     snow3g
-    qat
+    qat
\ No newline at end of file
diff --git a/doc/guides/cryptodevs/overview.rst b/doc/guides/cryptodevs/overview.rst
new file mode 100644
index 0000000..9f9af43
--- /dev/null
+++ b/doc/guides/cryptodevs/overview.rst
@@ -0,0 +1,94 @@ 
+..  BSD LICENSE
+    Copyright(c) 2016 Intel Corporation. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+    * Neither the name of Intel Corporation nor the names of its
+    contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Crypto Device Supported Functionality Matrices
+----------------------------------------------
+
+Supported Feature Flags
+
+.. csv-table::
+   :header: "Feature Flags", "qat", "null", "aesni_mb", "aesni_gcm", "snow3g"
+   :stub-columns: 1
+
+   "RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO",x,x,,,
+   "RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO",,,,,
+   "RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING",x,x,x,x,x
+   "RTE_CRYPTODEV_FF_CPU_SSE",,,x,x,x
+   "RTE_CRYPTODEV_FF_CPU_AVX",,,x,x,x
+   "RTE_CRYPTODEV_FF_CPU_AVX2",,,x,x,
+   "RTE_CRYPTODEV_FF_CPU_AESNI",,,x,x,
+   "RTE_CRYPTODEV_FF_HW_ACCELERATED",x,,,,
+
+Supported Cipher Algorithms
+
+.. csv-table::
+   :header: "Cipher Algorithms", "qat", "null", "aesni_mb", "aesni_gcm", "snow3g"
+   :stub-columns: 1
+
+   "NULL",,x,,,
+   "AES_CBC_128",x,,x,,
+   "AES_CBC_192",x,,x,,
+   "AES_CBC_256",x,,x,,
+   "AES_CTR_128",,,,,
+   "AES_CTR_192",,,,,
+   "AES_CTR_256",,,,,
+   "SNOW3G_UEA2",x,,,,x
+
+Supported Authentication Algorithms
+
+.. csv-table::
+   :header: "Cipher Algorithms", "qat", "null", "aesni_mb", "aesni_gcm", "snow3g"
+   :stub-columns: 1
+
+   "NONE",,x,,,
+   "MD5",,,,,
+   "MD5_HMAC",,,x,,
+   "SHA1",,,,,
+   "SHA1_HMAC",x,,x,,
+   "SHA224",,,,,
+   "SHA224_HMAC",,,x,,
+   "SHA256",,,,,
+   "SHA256_HMAC",x,,x,,
+   "SHA384",,,,,
+   "SHA384_HMAC",,,x,,
+   "SHA512",,,,,
+   "SHA512_HMAC",x,,x,,
+   "AES_XCBC",x,,x,,
+   "SNOW3G_UIA2",x,,,,x
+
+
+Supported AEAD Algorithms
+
+.. csv-table::
+   :header: "AEAD Algorithms", "qat", "null", "aesni_mb", "aesni_gcm", "snow3g"
+   :stub-columns: 1
+
+   "AES_GCM_128",x,,x,,
+   "AES_GCM_192",x,,,,
+   "AES_GCM_256",x,,,,