X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fhowto%2Fvirtio_user_as_exceptional_path.rst;h=ec021af399d048ac8008b9818f880fe9e0e2db97;hb=f5ab2074cfba1fa9287269aec08358c29799bc13;hp=91a99c6752f1d4fe4da3dba9636dfea707256820;hpb=a29491c2f417c58cf02ace231d7a0215315e1346;p=dpdk.git

diff --git a/doc/guides/howto/virtio_user_as_exceptional_path.rst b/doc/guides/howto/virtio_user_as_exceptional_path.rst
index 91a99c6752..ec021af399 100644
--- a/doc/guides/howto/virtio_user_as_exceptional_path.rst
+++ b/doc/guides/howto/virtio_user_as_exceptional_path.rst
@@ -1,34 +1,7 @@
-..  BSD LICENSE
-    Copyright(c) 2016 Intel Corporation. All rights reserved.
-    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.
-
-.. _virtio_user_as_excpetional_path:
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright(c) 2016 Intel Corporation.
+
+.. _virtio_user_as_exceptional_path:
 
 Virtio_user as Exceptional Path
 ===============================
@@ -49,12 +22,12 @@ solution is very promising in:
 *   Features
 
     vhost-net is born to be a networking solution, which has lots of networking
-    related featuers, like multi queue, tso, multi-seg mbuf, etc.
+    related features, like multi queue, tso, multi-seg mbuf, etc.
 
 *   Performance
 
     similar to KNI, this solution would use one or more kthreads to
-    send/receive packets from user space DPDK applications, which has little
+    send/receive packets to/from user space DPDK applications, which has little
     impact on user space polling thread (except that it might enter into kernel
     space to wake up those kthreads if necessary).
 
@@ -65,7 +38,7 @@ in :numref:`figure_virtio_user_as_exceptional_path`.
 
 .. figure:: img/virtio_user_as_exceptional_path.*
 
-   Overview of a DPDK app using virtio-user as excpetional path
+   Overview of a DPDK app using virtio-user as exceptional path
 
 
 Sample Usage
@@ -84,8 +57,8 @@ compiling the kernel and those kernel modules should be inserted.
 
         $(testpmd) -l 2-3 -n 4 \
 		--vdev=virtio_user0,path=/dev/vhost-net,queue_size=1024 \
-		-- -i --txqflags=0x0 --disable-hw-vlan --enable-lro --crc-strip \
-		--enable-rx-cksum --rxd=1024 --txd=1024
+		-- -i --tx-offloads=0x0000002c --enable-lro \
+		--txd=1024 --rxd=1024
 
     This command runs testpmd with two ports, one physical NIC to communicate
     with outside, and one virtio-user to communicate with kernel.
@@ -94,12 +67,7 @@ compiling the kernel and those kernel modules should be inserted.
 
     This is used to negotiate VIRTIO_NET_F_GUEST_TSO4 and
     VIRTIO_NET_F_GUEST_TSO6 feature so that large packets from kernel can be
-    transmitted DPDK application and further TSOed by physical NIC.
-
-* ``--enable-rx-cksum``
-
-    This is used to negotiate VIRTIO_NET_F_GUEST_CSUM so that packets from
-    kernel can be deemed as valid Rx checksumed.
+    transmitted to DPDK application and further TSOed by physical NIC.
 
 * ``queue_size``
 
@@ -107,15 +75,23 @@ compiling the kernel and those kernel modules should be inserted.
 
 * ``queues``
 
-    Number of multi-queues. Each qeueue will be served by a kthread. For example:
+    Number of multi-queues. Each queue will be served by a kthread. For example:
 
     .. code-block:: console
 
         $(testpmd) -l 2-3 -n 4 \
 		--vdev=virtio_user0,path=/dev/vhost-net,queues=2,queue_size=1024 \
-		-- -i --txqflags=0x0 --disable-hw-vlan --enable-lro \
-		--crc-strip --enable-rx-cksum --txq=2 --rxq=2 --rxd=1024 \
-		--txd=1024
+		-- -i --tx-offloads=0x0000002c --enable-lro \
+		--txq=2 --rxq=2 --txd=1024 --rxd=1024
+
+#. Enable Rx checksum offloads in testpmd:
+
+    .. code-block:: console
+
+        (testpmd) port stop 0
+        (testpmd) port config 0 rx_offload tcp_cksum on
+        (testpmd) port config 0 rx_offload udp_cksum on
+        (testpmd) port start 0
 
 #. Start testpmd: