[ovs-dev] [PATCH v2 7/9] doc: Move "pdump" guide to its own document

[Stephen Finucane]

Yet another section that's far too detailed for someone getting started
with DPDK in OVS. Split it out.

Signed-off-by: Stephen Finucane <stephen at that.guru>
---
 Documentation/howto/dpdk.rst        | 39 ----------------------
 Documentation/topics/dpdk/index.rst |  1 +
 Documentation/topics/dpdk/pdump.rst | 65 +++++++++++++++++++++++++++++++++++++
 3 files changed, 66 insertions(+), 39 deletions(-)
 create mode 100644 Documentation/topics/dpdk/pdump.rst

diff --git a/Documentation/howto/dpdk.rst b/Documentation/howto/dpdk.rst
index b3cba19b2..1a0fb6df1 100644
--- a/Documentation/howto/dpdk.rst
+++ b/Documentation/howto/dpdk.rst
@@ -85,45 +85,6 @@ To stop ovs-vswitchd & delete bridge, run::
     $ ovs-appctl -t ovsdb-server exit
     $ ovs-vsctl del-br br0
 
-pdump
------
-
-pdump allows you to listen on DPDK ports and view the traffic that is passing
-on them. To use this utility, one must have libpcap installed on the system.
-Furthermore, DPDK must be built with ``CONFIG_RTE_LIBRTE_PDUMP=y`` and
-``CONFIG_RTE_LIBRTE_PMD_PCAP=y``.
-
-.. warning::
-  A performance decrease is expected when using a monitoring application like
-  the DPDK pdump app.
-
-To use pdump, simply launch OVS as usual, then navigate to the ``app/pdump``
-directory in DPDK, ``make`` the application and run like so::
-
-    $ sudo ./build/app/dpdk-pdump -- \
-        --pdump port=0,queue=0,rx-dev=/tmp/pkts.pcap \
-        --server-socket-path=/usr/local/var/run/openvswitch
-
-The above command captures traffic received on queue 0 of port 0 and stores it
-in ``/tmp/pkts.pcap``. Other combinations of port numbers, queues numbers and
-pcap locations are of course also available to use. For example, to capture all
-packets that traverse port 0 in a single pcap file::
-
-    $ sudo ./build/app/dpdk-pdump -- \
-        --pdump 'port=0,queue=*,rx-dev=/tmp/pkts.pcap,tx-dev=/tmp/pkts.pcap' \
-        --server-socket-path=/usr/local/var/run/openvswitch
-
-``server-socket-path`` must be set to the value of ``ovs_rundir()`` which
-typically resolves to ``/usr/local/var/run/openvswitch``.
-
-Many tools are available to view the contents of the pcap file. Once example is
-tcpdump. Issue the following command to view the contents of ``pkts.pcap``::
-
-    $ tcpdump -r pkts.pcap
-
-More information on the pdump app and its usage can be found in the `DPDK docs
-<http://dpdk.org/doc/guides/tools/pdump.html>`__.
-
 Jumbo Frames
 ------------
 
diff --git a/Documentation/topics/dpdk/index.rst b/Documentation/topics/dpdk/index.rst
index fd7cf38b5..d083d929e 100644
--- a/Documentation/topics/dpdk/index.rst
+++ b/Documentation/topics/dpdk/index.rst
@@ -38,3 +38,4 @@ The DPDK Datapath
    /topics/dpdk/vdev
    /topics/dpdk/pmd
    /topics/dpdk/qos
+   /topics/dpdk/pdump
diff --git a/Documentation/topics/dpdk/pdump.rst b/Documentation/topics/dpdk/pdump.rst
new file mode 100644
index 000000000..f1a408989
--- /dev/null
+++ b/Documentation/topics/dpdk/pdump.rst
@@ -0,0 +1,65 @@
+..
+      Licensed under the Apache License, Version 2.0 (the "License"); you may
+      not use this file except in compliance with the License. You may obtain
+      a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+      WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+      License for the specific language governing permissions and limitations
+      under the License.
+
+      Convention for heading levels in Open vSwitch documentation:
+
+      =======  Heading 0 (reserved for the title in a document)
+      -------  Heading 1
+      ~~~~~~~  Heading 2
+      +++++++  Heading 3
+      '''''''  Heading 4
+
+      Avoid deeper levels because they do not render well.
+
+=====
+pdump
+=====
+
+pdump allows you to listen on DPDK ports and view the traffic that is passing
+on them. To use this utility, one must have libpcap installed on the system.
+Furthermore, DPDK must be built with ``CONFIG_RTE_LIBRTE_PDUMP=y`` and
+``CONFIG_RTE_LIBRTE_PMD_PCAP=y``.
+
+.. warning::
+
+   A performance decrease is expected when using a monitoring application like
+   the DPDK pdump app.
+
+To use pdump, simply launch OVS as usual, then navigate to the ``app/pdump``
+directory in DPDK, ``make`` the application and run like so::
+
+    $ sudo ./build/app/dpdk-pdump -- \
+        --pdump port=0,queue=0,rx-dev=/tmp/pkts.pcap \
+        --server-socket-path=/usr/local/var/run/openvswitch
+
+The above command captures traffic received on queue 0 of port 0 and stores it
+in ``/tmp/pkts.pcap``. Other combinations of port numbers, queues numbers and
+pcap locations are of course also available to use. For example, to capture all
+packets that traverse port 0 in a single pcap file::
+
+    $ sudo ./build/app/dpdk-pdump -- \
+        --pdump 'port=0,queue=*,rx-dev=/tmp/pkts.pcap,tx-dev=/tmp/pkts.pcap' \
+        --server-socket-path=/usr/local/var/run/openvswitch
+
+``server-socket-path`` must be set to the value of ``ovs_rundir()`` which
+typically resolves to ``/usr/local/var/run/openvswitch``.
+
+Many tools are available to view the contents of the pcap file. Once example is
+tcpdump. Issue the following command to view the contents of ``pkts.pcap``::
+
+    $ tcpdump -r pkts.pcap
+
+More information on the pdump app and its usage can be found in the `DPDK
+documentation`__.
+
+__ http://dpdk.org/doc/guides/tools/pdump.html
-- 
2.14.3