[spp] [PATCH 2/2] docs: revise getting started guide
ogawa.yasufumi at lab.ntt.co.jp
ogawa.yasufumi at lab.ntt.co.jp
Tue May 15 03:21:13 CEST 2018
From: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>
Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>
---
docs/guides/setup/getting_started.rst | 50 +++++++++++++++++++--------
1 file changed, 35 insertions(+), 15 deletions(-)
diff --git a/docs/guides/setup/getting_started.rst b/docs/guides/setup/getting_started.rst
index d9ecc6e..2b55d77 100644
--- a/docs/guides/setup/getting_started.rst
+++ b/docs/guides/setup/getting_started.rst
@@ -53,11 +53,12 @@ For 1GB page, hugepage setting must be activated while booting system.
It must be defined in boot loader configuration, usually is
``/etc/default/grub``.
Add an entry to define pagesize and the number of pages.
-Here is an example. `` hugepagesz`` is for the size and ``hugepages``
+Here is an example. ``hugepagesz`` is for the size and ``hugepages``
is for the number of pages.
.. code-block:: console
+ # /etc/default/grub
GRUB_CMDLINE_LINUX="default_hugepagesz=1G hugepagesz=1G hugepages=8"
.. note::
@@ -90,8 +91,8 @@ Make the memory available for using hugepages from DPDK.
.. code-block:: console
- mkdir /mnt/huge
- mount -t hugetlbfs nodev /mnt/huge
+ $ mkdir /mnt/huge
+ $ mount -t hugetlbfs nodev /mnt/huge
It is also available while booting by adding a configuration of mount
point in ``/etc/fstab``, or after booted.
@@ -101,12 +102,14 @@ For 2MB, it is no need to declare the size of hugepages explicity.
.. code-block:: console
+ # /etc/fstab
nodev /mnt/huge hugetlbfs defaults 0 0
For 1GB, the size of hugepage must be specified.
.. code-block:: console
+ # /etc/fstab
nodev /mnt/huge_1GB hugetlbfs pagesize=1GB 0 0
@@ -125,14 +128,23 @@ mapping while starting multi-process application as discussed in
<http://dpdk.org/ml/archives/dev/2014-September/005236.html>`_
.
-ASLR can be disabled by assigning `kernel.randomize_va_space` to `0`,
-or be enabled by assigning to `2`.
+ASLR can be disabled by assigning ``kernel.randomize_va_space`` to
+``0``, or be enabled by assigning it to ``2``.
.. code-block:: console
# disable ASLR
$ sudo sysctl -w kernel.randomize_va_space=0
+ # enable ASLR
+ $ sudo sysctl -w kernel.randomize_va_space=2
+
+You can check the value as following.
+
+.. code-block:: console
+
+ $ sysctl -n kernel.randomize_va_space
+
Install DPDK and SPP
--------------------
@@ -148,16 +160,26 @@ DPDK
~~~~
First, download and compile DPDK in any directory.
-Compiling DPDK takes a few minutes.
.. code-block:: console
$ cd /path/to/any
$ git clone http://dpdk.org/git/dpdk
+
+
+SPP provides libpcap-based PMD for dumping packet to a file or retrieve
+it from the file.
+You should enable pcap while compiling DPDK because it is disabled as
+default.
+Compiling DPDK takes a few minutes.
+
+.. code-block:: console
+
$ cd dpdk
$ export RTE_SDK=$(pwd)
$ export RTE_TARGET=x86_64-native-linuxapp-gcc # depends on your env
- $ make install T=$RTE_TARGET
+ $ make install T=$RTE_TARGET CONFIG_RTE_LIBRTE_PMD_PCAP=y
+
SPP
~~~
@@ -206,8 +228,8 @@ or ``vfio-pci``.
.. code-block:: console
- sudo modprobe uio
- sudo insmod kmod/igb_uio.ko
+ $ sudo modprobe uio
+ $ sudo insmod kmod/igb_uio.ko
Binding Network Ports
~~~~~~~~~~~~~~~~~~~~~
@@ -278,10 +300,8 @@ cannot find it by using ``ifconfig`` or ``ip``.
Confirm DPDK is setup properly
------------------------------
-You had better to run DPDK sample application before SPP
-as checking DPDK is setup properly.
-
-Try ``l2fwd`` as an example.
+You should run DPDK sample application ``l2fwd`` before SPP
+to confirm that DPDK is setup properly.
.. code-block:: console
@@ -294,13 +314,13 @@ Try ``l2fwd`` as an example.
In this case, run this application with two options.
- - -c: core mask
+ - -l: core list
- -p: port mask
.. code-block:: console
$ sudo ./build/app/l2fwd \
- -c 0x03 \
+ -l 1-2 \
-- -p 0x3
It must be separated with ``--`` to specify which option is
--
2.17.0
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