[spp] [PATCH 06/20] docs: move descs of packet copy mode of spp_mirror

[ogawa.yasufumi@lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>

This patch is to move instruction for copy mode of spp_mirror.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 docs/guides/gsg/install.rst      | 35 +++++++++++-----
 docs/guides/gsg/setup.rst        |  2 +-
 docs/guides/spp_vf/gsg/setup.rst | 86 ----------------------------------------
 3 files changed, 26 insertions(+), 97 deletions(-)
 delete mode 100644 docs/guides/spp_vf/gsg/setup.rst

diff --git a/docs/guides/gsg/install.rst b/docs/guides/gsg/install.rst
index b44cdaf..0bb3401 100644
--- a/docs/guides/gsg/install.rst
+++ b/docs/guides/gsg/install.rst
@@ -62,8 +62,8 @@ is included in ``wireshark``.
     $ sudo apt install wireshark
 
 PCAP is disabled by default in DPDK configuration.
-``CONFIG_RTE_LIBRTE_PMD_PCAP`` and ``CONFIG_RTE_PORT_PCAP`` define the
-configuration and enabled it to ``y``.
+``CONFIG_RTE_LIBRTE_PMD_PCAP`` and ``CONFIG_RTE_PORT_PCAP`` defined in
+config file ``common_base`` should be changed to ``y`` to enable PCAP.
 
 .. code-block:: console
 
@@ -85,7 +85,7 @@ Compile DPDK with target environment.
 SPP
 ---
 
-Clone repository and compile SPP in any directory.
+Clone SPP repository and compile it in any directory.
 
 .. code-block:: console
 
@@ -94,15 +94,30 @@ Clone repository and compile SPP in any directory.
     $ cd spp
     $ make  # Confirm that $RTE_SDK and $RTE_TARGET are set
 
-It also required to install Python3 and packages for running python scripts
-as following.
-You might need to run ``pip3`` with ``sudo`` if it is failed.
+If you use ``spp_mirror`` in deep copy mode, you should comment out
+the definition of copy mode in Makefile of ``spp_mirror`` before.
+It is for copying full payload into a new mbuf.
+Default mode is shallow copy.
+
+.. code-block:: console
+
+    # src/mirror/Makefile
+    #CFLAGS += -Dspp_mirror_SHALLOWCOPY
+
+.. note::
+
+    Before run make command, you might need to consider if using deep copy
+    for cloning packets in ``spp_mirror``. Comparing with shallow copy, it
+    clones entire packet payload into a new mbuf and it is modifiable,
+    but lower performance. Which of copy mode should be chosen depends on
+    your usage.
+
+SPP provides ``requirements.txt`` for installing required packages of Python3.
+You might fail to run ``pip3`` without sudo on some environments.
 
 .. code-block:: console
 
     $ sudo apt update
-    $ sudo apt install python3
-    $ sudo apt install python3-pip
     $ pip3 install -r requirements.txt
 
 
@@ -221,8 +236,8 @@ it is very similar to SPP's worker process for forwarding.
 In this case, run this application simply with just two options
 while DPDK has many kinds of options.
 
-  - -l: core list
-  - -p: port mask
+  * ``-l``: core list
+  * ``-p``: port mask
 
 .. code-block:: console
 
diff --git a/docs/guides/gsg/setup.rst b/docs/guides/gsg/setup.rst
index 9e3d17d..d4f9543 100644
--- a/docs/guides/gsg/setup.rst
+++ b/docs/guides/gsg/setup.rst
@@ -137,7 +137,7 @@ You can check the value as following.
 Vhost Client Mode
 -----------------
 
-SPP secondary process supports ``--vhost-client`` options for using vhost port.
+SPP secondary process supports ``--vhost-client`` option for using vhost port.
 In vhost client mode, qemu creates socket file instead of secondary process.
 It means that you can launch a VM before secondary process create vhost port.
 
diff --git a/docs/guides/spp_vf/gsg/setup.rst b/docs/guides/spp_vf/gsg/setup.rst
deleted file mode 100644
index eebe591..0000000
--- a/docs/guides/spp_vf/gsg/setup.rst
+++ /dev/null
@@ -1,86 +0,0 @@
-..  SPDX-License-Identifier: BSD-3-Clause
-    Copyright(c) 2019 Nippon Telegraph and Telephone Corporation
-
-.. _spp_vf_gsg_setup:
-
-Setup
-=====
-
-Install DPDK
-------------
-
-Install DPDK in any directory. This is a simple instruction and please
-refer
-`Getting Started Guide for Linux
-<http://dpdk.org/doc/guides/linux_gsg/index.html>`_
-for details.
-
-.. code-block:: console
-
-    $ cd /path/to/any_dir
-    $ git clone http://dpdk.org/git/dpdk
-    $ cd dpdk
-    $ git checkout [TAG_NAME(e.g. v17.05)]
-    $ export RTE_SDK=`pwd`
-    $ export RTE_TARGET=x86_64-native-linuxapp-gcc
-    $ make T=x86_64-native-linuxapp-gcc install
-
-
-Install SPP
------------
-
-Clone SPP in any directory and compile it.
-
-.. code-block:: console
-
-    $ cd /path/to/any_dir
-    $ git clone http://dpdk.org/git/apps/spp
-    $ cd spp
-    $ make
-
-Setup for DPDK
---------------
-
-Load igb_uio module.
-
-.. code-block:: console
-
-    $ sudo modprobe uio
-    $ sudo insmod $RTE_SDK/x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
-    $ lsmod | grep uio
-    igb_uio                16384  0  # igb_uio is loaded
-    uio                    20480  1 igb_uio
-
-Then, bind your devices with PCI number by using ``dpdk-devbind.py``.
-PCI number is inspected
-
-.. code-block:: console
-
-    # check your device for PCI_Number
-    $ $RTE_SDK/usertools/dpdk-devbind.py --status
-
-    $ sudo $RTE_SDK/usertools/dpdk-devbind.py --bind=igb_uio PCI_NUM
-
-
-Setup spp_mirror
-----------------
-
-Setup of ``spp_mirror`` is almost the same as :ref:`SPP VF<spp_vf_gsg_setup>`.
-Configuration of use of ``shallowcopy`` or ``deepcopy`` is different from
-``spp_vf``.
-It is defined in ``src/mirror/Makefile`` and which of copying is used is
-configured by editing ``CFLAG`` option. It is defined to use ``shallowcopy``
-by default.
-
-If you use ``deepcopy``, comment out the line of ``-Dspp_mirror_SHALLOWCOPY``
-to be disabled.
-
-.. code-block:: c
-
-   #CFLAGS += -Dspp_mirror_SHALLOWCOPY
-
-Then, run make command to compile ``spp_mirror``.
-
-.. code-block:: console
-
-   $ make
-- 
2.7.4