--- /dev/null
+.. BSD LICENSE
+ Copyright 2016 6WIND S.A.
+
+ 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 6WIND S.A. 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.
+
+Overview of Networking Drivers
+==============================
+
+The networking drivers may be classified in two categories:
+
+- physical for real devices
+- virtual for emulated devices
+
+Some physical devices may be shaped through a virtual layer as for
+SR-IOV.
+The interface seen in the virtual environment is a VF (Virtual Function).
+
+The ethdev layer exposes an API to use the networking functions
+of these devices.
+The bottom half part of ethdev is implemented by the drivers.
+Thus some features may not be implemented.
+
+There are more differences between drivers regarding some internal properties,
+portability or even documentation availability.
+Most of these differences are summarized below.
+
+.. _table_net_pmd_features:
+
+.. raw:: html
+
+ <style>
+ table#id1 th {
+ font-size: 80%;
+ white-space: pre-wrap;
+ text-align: center;
+ vertical-align: top;
+ padding: 3px;
+ }
+ table#id1 th:first-child {
+ vertical-align: bottom;
+ }
+ table#id1 td {
+ font-size: 70%;
+ padding: 1px;
+ }
+ table#id1 td:first-child {
+ padding-left: 1em;
+ }
+ </style>
+
+.. table:: Features availability in networking drivers
+
+ ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
+ Feature a b b b c e e e i i i i i i i i i i f f f f m m m n n p r s v v v v x
+ f n n o x 1 n n 4 4 4 4 g g x x x x m m m m l l p f u c i z h i i m e
+ p x x n g 0 a i 0 0 0 0 b b g g g g 1 1 1 1 x x i p l a n e o r r x n
+ a 2 2 d b 0 c e e e e v b b b b 0 0 0 0 4 5 p l p g d s t t n v
+ c x x i e 0 . v v f e e e e k k k k e a t i i e i
+ k v n . f f . v v . v v t o o t r
+ e f g . . . f f . f f a . 3 t
+ t v v v v v v 2 v
+ e e e e e e e
+ c c c c c c c
+ ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
+ speed capabilities
+ link status X X X X X X X X X X X X X X X X X X
+ link status event X X X X X X X X X X X
+ queue status event X
+ Rx interrupt X X X X X X X X X X X X X X X
+ queue start/stop X X X X X X X X X X X X X X X X X X
+ MTU update X X X X X X X X X X
+ jumbo frame X X X X X X X X X X X X X X X X X X X X
+ scattered Rx X X X X X X X X X X X X X X X X X X X X X
+ LRO X X X X
+ TSO X X X X X X X X X X X X X X X X
+ promiscuous mode X X X X X X X X X X X X X X X X X X X X
+ allmulticast mode X X X X X X X X X X X X X X X X X X X
+ unicast MAC filter X X X X X X X X X X X X X X X X X X X X
+ multicast MAC filter X X X X X X X X X X X X X
+ RSS hash X X X X X X X X X X X X X X X X X X
+ RSS key update X X X X X X X X X X X X X X X
+ RSS reta update X X X X X X X X X X X X X X X
+ VMDq X X X X X X X
+ SR-IOV X X X X X X X X X
+ DCB X X X X X
+ VLAN filter X X X X X X X X X X X X X X X X X X
+ ethertype filter X X X X X
+ n-tuple filter X X X
+ SYN filter X X X
+ tunnel filter X X X X
+ flexible filter X
+ hash filter X X X X
+ flow director X X X X X
+ flow control X X X X X X X
+ rate limitation X X
+ traffic mirroring X X X X
+ CRC offload X X X X X X X X X X X X X X X
+ VLAN offload X X X X X X X X X X X X X X X
+ QinQ offload X X X X X X X
+ L3 checksum offload X X X X X X X X X X X X X X X X
+ L4 checksum offload X X X X X X X X X X X X X X X X
+ inner L3 checksum X X X X X X
+ inner L4 checksum X X X X X X
+ packet type parsing X X X X X X X X X X X X X X
+ timesync X X X X X
+ basic stats X X X X X X X X X X X X X X X X X X X X X X X X X X X
+ extended stats X X X X X X X X X X X X X X X X X
+ stats per queue X X X X X X X X X X X X
+ EEPROM dump X X X
+ registers dump X X X X X X
+ multiprocess aware X X X X X X X X X X X X X X X
+ BSD nic_uio X X X X X X X X X X X X X X X X X X X
+ Linux UIO X X X X X X X X X X X X X X X X X X X X X X
+ Linux VFIO X X X X X X X X X X X X X X X X X X X
+ other kdrv X X X
+ ARMv7 X X X
+ ARMv8 X X X
+ Power8 X X X
+ TILE-Gx X
+ x86-32 X X X X X X X X X X X X X X X X X X X X X X X X
+ x86-64 X X X X X X X X X X X X X X X X X X X X X X X X X X X
+ usage doc X X X X X X X X X
+ design doc
+ perf doc
+ ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
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