(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.. _building_from_source:
+
Compiling the Intel® DPDK Target from Source
============================================
+.. note::
+
+ Testing has been performed using FreeBSD* 10.0-RELEASE (x86_64) and requires the
+ installation of the kernel sources, which should be included during the
+ installation of FreeBSD*. The Intel® DPDK also requires the use of FreeBSD*
+ ports to compile and function.
+
+System Requirements
+-------------------
+
+The Intel® DPDK and its applications require the GNU make system (gmake)
+to build on FreeBSD*. Optionally, gcc may also be used in place of clang
+to build the Intel® DPDK, in which case it too must be installed prior to
+compiling the Intel® DPDK. The installation of these tools is covered in this
+section.
+
+Compiling the Intel® DPDK requires the FreeBSD kernel sources, which should be
+included during the installation of FreeBSD* on the development platform.
+The Intel® DPDK also requires the use of FreeBSD* ports to compile and function.
+
+To use the FreeBSD* ports system, it is required to update and extract the FreeBSD*
+ports tree by issuing the following commands:
+
+.. code-block:: console
+
+ root@host:~ # portsnap fetch
+ root@host:~ # portsnap extract
+
+If the environment requires proxies for external communication, these can be set
+using:
+
+.. code-block:: console
+
+ root@host:~ # setenv http_proxy <my_proxy_host>:<port>
+ root@host:~ # setenv ftp_proxy <my_proxy_host>:<port>
+
+The FreeBSD* ports below need to be installed prior to building the Intel® DPDK.
+In general these can be installed using the following set of commands:
+
+#. cd /usr/ports/<port_location>
+
+#. make config-recursive
+
+#. make install
+
+#. make clean
+
+Each port location can be found using:
+
+.. code-block:: console
+
+ user@host:~ # whereis <port_name>
+
+The ports required and their locations are as follows:
+
+dialog4ports
+ /usr/ports/ports-mgmt/dialog4ports
+
+GNU make(gmake)
+ /usr/ports/devel/gmake
+
+coreutils
+ /usr/ports/sysutils/coreutils
+
+For compiling and using the Intel® DPDK with gcc, it too must be installed
+from the ports collection:
+
+gcc: version 4.8 is recommended
+ /usr/ports/lang/gcc48
+ (Ensure that CPU_OPTS is selected (default is OFF))
+
+When running the make config-recursive command, a dialog may be presented to the
+user. For the installation of the Intel® DPDK, the default options were used.
+
+.. note::
+
+ To avoid multiple dialogs being presented to the user during make install,
+ it is advisable before running the make install command to re-run the
+ make config -recursive command until no more dialogs are seen.
+
+
Install the Intel® DPDK and Browse Sources
------------------------------------------
* EXECENV is: bsdapp
-* TOOLCHAIN is: gcc
+* TOOLCHAIN is: gcc | clang
The configuration files for the Intel® DPDK targets can be found in the DPDK/config
directory in the form of:
on which it is built. For more information on this setting, and its
possible values, see the *Intel® DPDK Programmers Guide*.
-To install and make the target, use gmake install T=<target> CC=gcc48.
+To install and make the target, use "gmake install T=<target>".
For example to compile for FreeBSD* use:
.. code-block:: console
- gmake install T=x86_64-native-bsdapp-gcc CC=gcc48
-
-To prepare a target without building it, for example, if the configuration
-changes need to be made before compilation, use the gmake config T=<target> command:
-
-.. code-block:: console
-
- gmake config T=x86_64-native-bsdapp-gcc CC=gcc48
+ gmake install T=x86_64-native-bsdapp-clang
-To build after configuration, change directory to ./x86_64-native-bsdapp-gcc and use:
-
-.. code-block:: console
+.. note::
- gmake CC=gcc48
+ If the compiler binary to be used does not correspond to that given in the
+ TOOLCHAIN part of the target, the compiler command may need to be explicitly
+ specified. For example, if compiling for gcc, where the gcc binary is called
+ gcc4.8, the command would need to be "gmake install T=<target> CC=gcc4.8".
Browsing the Installed Intel® DPDK Environment Target
-----------------------------------------------------
user@host:~/DPDK # ls x86_64-native-bsdapp-gcc
app build hostapp include kmod lib Makefile
+
+.. _loading_contigmem:
+
Loading the Intel® DPDK contigmem Module
----------------------------------------
-To run any Intel® DPDK application, the contigmem module must be loaded into the
-running kernel. The module is found in the kmod sub-directory of the Intel® DPDK
-target directory. The module can be loaded using kldload (assuming that the
-current directory is the Intel® DPDK target directory):
+To run an Intel® DPDK application, physically contiguous memory is required.
+In the absence of non-transparent superpages, the included sources for the
+contigmem kernel module provides the ability to present contiguous blocks of
+memory for the Intel® DPDK to use. The contigmem module must be loaded into the
+running kernel before any Intel® DPDK is run. The module is found in the kmod
+sub-directory of the Intel® DPDK target directory.
+
+The amount of physically contiguous memory along with the number of physically
+contiguous blocks to be reserved by the module can be set at runtime prior to
+module loading using:
+
+.. code-block:: console
+
+ root@host:~ # kenv hw.contigmem.num_buffers=n
+ root@host:~ # kenv hw.contigmem.buffer_size=m
+
+The kernel environment variables can also be specified during boot by placing the
+following in /boot/loader.conf:
+
+::
+
+ hw.contigmem.num_buffers=n hw.contigmem.buffer_size=m
+
+The variables can be inspected using the following command:
+
+.. code-block:: console
+
+ root@host:~ # sysctl -a hw.contigmem
+
+Where n is the number of blocks and m is the size in bytes of each area of
+contiguous memory. A default of two buffers of size 1073741824 bytes (1 Gigabyte)
+each is set during module load if they are not specified in the environment.
+
+The module can then be loaded using kldload (assuming that the current directory
+is the Intel® DPDK target directory):
.. code-block:: console
hw.contigmem.num_buffers and hw.contigmem.buffer_size if the default values
are not to be used.
-An error such as kldload: can't load ./x86_64-native-bsdapp-gcc/kmod/contigmem.ko:
-Exec format error, is generally attributed to not having enough contiguous memory
+An error such as:
+
+.. code-block:: console
+
+ kldload: can't load ./x86_64-native-bsdapp-gcc/kmod/contigmem.ko: Exec format error
+
+is generally attributed to not having enough contiguous memory
available and can be verified via dmesg or /var/log/messages:
.. code-block:: console
To avoid this error, reduce the number of buffers or the buffer size.
+.. _loading_nic_uio:
+
Loading the Intel® DPDK nic_uio Module
--------------------------------------
.. note::
- Currently loaded modules can be seen by using the kldstat command. A module
- can be removed from the running kernel by using kldunload <module_name>.
- While the nic_uio module can be loaded during boot, the module load order
- cannot be guaranteed and in the case where only some ports are bound to
- nic_uio and others remain in use by the original driver, it is necessary to
- load nic_uio after booting into the kernel, specifically after the original
- driver has been loaded.
+ If the ports to be used are currently bound to a existing kernel driver
+ then the hw.nic_uio.bdfs sysctl value will need to be set before loading the
+ module. Setting this value is described in the next section below.
+
+Currently loaded modules can be seen by using the "kldstat" command and a module
+can be removed from the running kernel by using "kldunload <module_name>".
-To load the module during boot, copy the nic_uio module to /boot/kernel and place the following into /boot/loader.conf:
+To load the module during boot, copy the nic_uio module to /boot/kernel
+and place the following into /boot/loader.conf:
::
nic_uio_load="YES" must appear after the contigmem_load directive, if it exists.
-Binding Network Ports to the nic_uio Module
--------------------------------------------
-
By default, the nic_uio module will take ownership of network ports if they are
-recognized Intel® DPDK devices and are not owned by another module.
+recognized Intel® DPDK devices and are not owned by another module. However, since
+the FreeBSD kernel includes support, either built-in, or via a separate driver
+module, for most network card devices, it is likely that the ports to be used are
+already bound to a driver other than nic_uio. The following sub-section describe
+how to query and modify the device ownership of the ports to be used by
+Intel® DPDK applications.
+
+.. _binding_network_ports:
-Device ownership can be viewed using the pciconf -l command.
+Binding Network Ports to the nic_uio Module
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The example below shows four Intel® 82599 network ports under if_ixgbe module ownership.
+Device ownership can be viewed using the pciconf -l command. The example below shows
+four Intel® 82599 network ports under "if_ixgbe" module ownership.
.. code-block:: console
Where a comma separated list of selectors is set, the list must not contain any
whitespace.
-For example to re-bind ix2@pci0:2:0:0 and ix3@pci0:2:0: to the nic_uio module
+For example to re-bind "ix2\@pci0:2:0:0" and "ix3\@pci0:2:0:1" to the nic_uio module
upon loading, use the following command:
.. code-block:: console
kenv hw.nic_uio.bdfs="2:0:0,2:0:1"
The variable can also be specified during boot by placing the following into
-/boot/loader.conf:
+"/boot/loader.conf", before the previously-described "nic_uio_load" line - as
+shown.
::
hw.nic_uio.bdfs="2:0:0,2:0:1"
+ nic_uio_load="YES"
-To restore the original device binding, it is necessary to reboot FreeBSD* if the
-original driver has been compiled into the kernel.
-
-For example to rebind some or all ports to the original driver:
-
-Update or remove the hw.nic_uio.bdfs entry in /boot/loader.conf if specified there
-for persistency, then;
-
-.. code-block:: console
+Binding Network Ports Back to their Original Kernel Driver
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- reboot
+If the original driver for a network port has been compiled into the kernel,
+it is necessary to reboot FreeBSD* to restore the original device binding. Before
+doing so, update or remove the "hw.nic_uio.bdfs" in "/boot/loader.conf".
If rebinding to a driver that is a loadable module, the network port binding can
-be reset without rebooting. This requires the unloading of the nic_uio module
-and the original driver.
+be reset without rebooting. To do so, unload both the target kernel module and the
+nic_uio module, modify or clear the "hw.nic_uio.bdfs" kernel environment (kenv)
+value, and reload the two drivers - first the original kernel driver, and then
+the nic_uio driver. [The latter does not need to be reloaded unless there are
+ports that are still to be bound to it].
-Update or remove the hw.nic_uio.bdfs entry from /boot/loader.conf if specified
-there for persistency.
+Example commands to perform these steps are shown below:
.. code-block:: console
kldunload nic_uio
+ kldunload <original_driver>
-kldunload <original_driver>
-
-.. code-block:: console
-
- kenv -u hw.nic_uio.bdfs
-
-to remove all network ports from nic_uio and undefined this system variable OR
+ kenv -u hw.nic_uio.bdfs # to clear the value completely
-.. code-block:: console
-
- kenv hw.nic_uio.bdfs="b:d:f,b:d:f,..."
-
-(to update nic_uio ports)
-
-.. code-block:: console
+ kenv hw.nic_uio.bdfs="b:d:f,b:d:f,..." # to update the list of ports to bind
kldload <original_driver>
- kldload nic_uio
-(if updating the list of associated network ports)
+ kldload nic_uio # optional
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.. _compiling_sample_apps:
+
Compiling and Running Sample Applications
=========================================
------------------------------
Once an Intel® DPDK target environment directory has been created (such as
-x86_64-native-bsdapp-gcc), it contains all libraries and header files required
+x86_64-native-bsdapp-clang), it contains all libraries and header files required
to build an application.
When compiling an application in the FreeBSD* environment on the Intel® DPDK,
* RTE_SDK - Points to the Intel® DPDK installation directory.
* RTE_TARGET - Points to the Intel® DPDK target environment directory.
- For FreeBSD*, this is the x86_64-native-bsdapp-gcc directory.
+ For FreeBSD*, this is the x86_64-native-bsdapp-clang or
+ x86_64-native-bsdapp-gcc directory.
The following is an example of creating the helloworld application, which runs
-in the Intel® DPDK FreeBSD* environment. This example may be found in the
+in the Intel® DPDK FreeBSD* environment. While the example demonstrates compiling
+using gcc version 4.8, compiling with clang will be similar, except that the "CC="
+parameter can probably be omitted. The "helloworld" example may be found in the
${RTE_SDK}/examples directory.
The directory contains the main.c file. This file, when combined with the
INSTALL-APP helloworld
INSTALL-MAP helloworld.map
+.. _running_sample_app:
+
Running a Sample Application
----------------------------
#. The contigmem and nic_uio modules must be set up prior to running an application.
#. Any ports to be used by the application must be already bound to the nic_uio module,
- as described in section Section 3.6, “ , ” prior to running the application.
+ as described in section :ref:`binding_network_ports`, prior to running the application.
The application is linked with the Intel® DPDK target environment's Environment
Abstraction Layer (EAL) library, which provides some options that are generic
to every Intel® DPDK application.
.. code-block:: console
- ./rte-app -c COREMASK -n NUM [-b <domain:bus:devid.func>] [-
m MB] [-r NUM] [-v] [--file-prefix] [--proc-type <primary|secondary|auto>]
+ ./rte-app -c COREMASK -n NUM [-b <domain:bus:devid.func>] [-
r NUM] [-v] [--proc-type <primary|secondary|auto>]
.. note::
EAL has a common interface between all operating systems and is based on the
- Linux* notation for PCI devices. The device and function separator used is
- a ":" rather than "." as seen with pciconf on FreeBSD*. For example, a
- FreeBSD* device selector of pci0:2:0:1 is referred to as 02:00.1 in EAL.
+ Linux* notation for PCI devices. For example, a FreeBSD* device selector of
+ pci0:2:0:1 is referred to as 02:00.1 in EAL.
The EAL options for FreeBSD* are as follows:
in the *Intel® DPDK Sample Applications User Guide and the Intel® DPDK
Programmers Guide* for more details.
+.. _running_non_root:
+
Running Intel®DPDK Applications Without Root Privileges
-------------------------------------------------------
:numbered:
intro
- sys_reqs
+ install_from_ports
build_dpdk
build_sample_apps
--- /dev/null
+.. BSD LICENSE
+ Copyright(c) 2010-2014 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.
+
+.. _install_from_ports:
+
+Installing Intel® DPDK from the Ports Collection
+================================================
+
+The easiest way to get up and running with the Intel® DPDK on FreeBSD is to
+install it from the ports collection. Details of getting and using the ports
+collection are documented in the FreeBSD Handbook at:
+
+ https://www.freebsd.org/doc/handbook/ports-using.html
+
+.. note::
+
+ Testing has been performed using FreeBSD* 10.0-RELEASE (x86_64) and requires the
+ installation of the kernel sources, which should be included during the
+ installation of FreeBSD*.
+
+Installing the Intel® DPDK FreeBSD Port
+---------------------------------------
+
+On a system with the ports collection installed in /usr/ports, the Intel® DPDK
+can be installed using the commands:
+
+.. code-block:: console
+
+ root@host:~ # cd /usr/ports/net/dpdk
+
+ root@host:~ # make install
+
+After the installation of the Intel® DPDK port, instructions will be printed on
+how to install the kernel modules required to use the Intel® DPDK. A more
+complete version of these instructions can be found in the sections
+:ref:`loading_contigmem` and :ref:`loading_nic_uio`. Normally, lines like
+those below would be added to the file "/boot/loader.conf".
+
+.. code-block:: console
+
+ # reserve 2 x 1G blocks of contiguous memory using contigmem driver
+ hw.contigmem.num_buffers=2
+ hw.contigmem.buffer_size=1073741824
+ contigmem_load="YES"
+ # identify NIC devices for Intel® DPDK apps to use and load nic_uio driver
+ hw.nic_uio.bdfs="2:0:0,2:0:1"
+ nic_uio_load="YES"
+
+Compiling and Running the Example Applications
+----------------------------------------------
+
+When the Intel® DPDK has been installed from the ports collection it installs
+its example applications in "/usr/local/share/dpdk/examples" - also accessible via
+symlink as "/usr/local/share/examples/dpdk". These examples can be compiled and
+run as described in :ref:`compiling_sample_apps`. In this case, the required
+environmental variables should be set as below:
+
+* RTE_SDK=/usr/local/share/dpdk
+
+* RTE_TARGET=x86_64-native-bsdapp-clang
+
+.. note::
+
+ To install a copy of the Intel® DPDK compiled using gcc, please download the
+ official Intel® DPDK package from http://dpdk.org/ and install manually using
+ the instructions given in the next chapter, :ref:`building_from_source`
+
+An example application can therefore be copied to a user's home directory and
+compiled and run as below:
+
+.. code-block:: console
+
+ user@host:~$ export RTE_SDK=/usr/local/share/dpdk
+
+ user@host:~$ export RTE_TARGET=x86_64-native-bsdapp-clang
+
+ user@host:~$ cp -r /usr/local/share/dpdk/examples/helloworld .
+
+ user@host:~$ cd helloworld/
+
+ user@host:~/helloworld$ gmake
+ CC main.o
+ LD helloworld
+ INSTALL-APP helloworld
+ INSTALL-MAP helloworld.map
+
+ user@host:~/helloworld$ sudo ./build/helloworld -c F -n 2
+ EAL: Contigmem driver has 2 buffers, each of size 1GB
+ EAL: Sysctl reports 8 cpus
+ EAL: Detected lcore 0
+ EAL: Detected lcore 1
+ EAL: Detected lcore 2
+ EAL: Detected lcore 3
+ EAL: Support maximum 64 logical core(s) by configuration.
+ EAL: Detected 4 lcore(s)
+ EAL: Setting up physically contiguous memory...
+ EAL: Mapped memory segment 1 @ 0x802400000: physaddr:0x40000000, len 1073741824
+ EAL: Mapped memory segment 2 @ 0x842400000: physaddr:0x100000000, len 1073741824
+ EAL: WARNING: clock_gettime cannot use CLOCK_MONOTONIC_RAW and HPET is not available - clock timings may be less accurate.
+ EAL: TSC frequency is ~3569023 KHz
+ EAL: PCI scan found 24 devices
+ EAL: Master core 0 is ready (tid=0x802006400)
+ EAL: Core 1 is ready (tid=0x802006800)
+ EAL: Core 3 is ready (tid=0x802007000)
+ EAL: Core 2 is ready (tid=0x802006c00)
+ EAL: PCI device 0000:01:00.0 on NUMA socket 0
+ EAL: probe driver: 8086:10fb rte_ixgbe_pmd
+ EAL: PCI memory mapped at 0x80074a000
+ EAL: PCI memory mapped at 0x8007ca000
+ EAL: PCI device 0000:01:00.1 on NUMA socket 0
+ EAL: probe driver: 8086:10fb rte_ixgbe_pmd
+ EAL: PCI memory mapped at 0x8007ce000
+ EAL: PCI memory mapped at 0x80084e000
+ EAL: PCI device 0000:02:00.0 on NUMA socket 0
+ EAL: probe driver: 8086:10fb rte_ixgbe_pmd
+ EAL: PCI memory mapped at 0x800852000
+ EAL: PCI memory mapped at 0x8008d2000
+ EAL: PCI device 0000:02:00.1 on NUMA socket 0
+ EAL: probe driver: 8086:10fb rte_ixgbe_pmd
+ EAL: PCI memory mapped at 0x801b3f000
+ EAL: PCI memory mapped at 0x8008d6000
+ hello from core 1
+ hello from core 2
+ hello from core 3
+ hello from core 0
+
+.. note::
+
+ To run an Intel® DPDK process as a non-root user, adjust the permissions on
+ the /dev/contigmem and /dev/uio device nodes as described in section
+ :ref:`running_non_root`
+
+.. note::
+ For an explanation of the command-line parameters that can be passed to an
+ Intel® DPDK application, see section :ref:`running_sample_app`.
This document contains instructions for installing and configuring the Intel®
Data Plane Development Kit(Intel® DPDK) software. It is designed to get customers
-up and running quickly. The document describes how to compile and run an Intel®
+up and running quickly and describes how to compile and run an Intel®
DPDK application in a FreeBSD* application (bsdapp) environment, without going
deeply into detail.
`http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/index.html <http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/index.html>`_
-DocumentationRoadmap
---------------------
+.. note::
+
+ The Intel® DPDK is now available as part of the FreeBSD ports collection.
+ Installing via the ports collection infrastructure is now the recommended
+ way to install the Intel® DPDK on FreeBSD, and is documented in the
+ next chapter, :ref:`install_from_ports`.
+
+Documentation Roadmap
+---------------------
The following is a list of Intel® DPDK documents in the suggested reading order:
+++ /dev/null
-.. BSD LICENSE
- Copyright(c) 2010-2014 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.
-
-System Requirements
-===================
-
-This chapter describes the packages required to compile the Intel® DPDK.
-
-Compilationofthe Intel® DPDK
-----------------------------
-
-.. note::
-
- The Intel® DPDK and its applications requires the GNU make system (gmake)
- and the GNU Compiler Collection (gcc) to build on FreeBSD*. The
- installation of these tools is covered in this section.
-
-**Required Tools:**
-
-.. note::
-
- Testing has been performed using FreeBSD* 9.2-RELEASE (x86_64), FreeBSD*
- 10.0-RELEASE (x86_64) and requires the installation of the kernel sources,
- which should be included during the installation of FreeBSD*. The Intel®
- DPDK also requires the use of FreeBSD* ports to compile and function.
-
-To use the FreeBSD* ports system, it is required to update and extract the FreeBSD*
-ports tree by issuing the following commands:
-
-.. code-block:: console
-
- root@host:~ # portsnap fetch
- root@host:~ # portsnap extract
-
-If the environment requires proxies for external communication, these can be set
-using:
-
-.. code-block:: console
-
- root@host:~ # setenv http_proxy <my_proxy_host>:<port>
- root@host:~ # setenv ftp_proxy <my_proxy_host>:<port>
-
-The FreeBSD* ports below need to be installed prior to building the Intel® DPDK.
-In general these can be installed using the following set of commands:
-
-#. cd /usr/ports/<port_location>
-
-#. make config-recursive
-
-#. make install
-
-#. make clean
-
-Each port location can be found using:
-
-.. code-block:: console
-
- user@host:~ # whereis <port_name>
-
-The ports required and their locations are as follows:
-
-* dialog4ports
-
-* /usr/ports/ports-mgmt/dialog4ports
-
-* gcc: version 4.8 is recommended
-
-* /usr/ports/lang/gcc48
-
-* Ensure that CPU_OPTS is selected (default is OFF)
-
-* GNU make(gmake)
-
-* Installed automatically with gcc48
-
-* coreutils
-
-* /usr/ports/sysutils/coreutils
-
-* libexecinfo (Not required for FreeBSD* 10)
-
-* /usr/src/contrib/libexecinfo
-
-When running the make config-recursive command, a dialog may be presented to the
-user. For the installation of the Intel® DPDK, the default options were used.
-
-.. note::
-
- To avoid multiple dialogs being presented to the user during make install,
- it is advisable before running the make install command to re-run the
- make config -recursive command until no more dialogs are seen.
-
-Running Intel® DPDK Applications
---------------------------------
-
-To run an Intel® DPDK application, physically contiguous memory is required.
-In the absence of non-transparent superpages, the included sources for the
-contigmem kernel module provides the ability to present contiguous blocks of
-memory for the Intel® DPDK to use. Section 3.4, “Loading the Intel® DPDK
-Contigmem Module” on page 8 for details on the loading of this module.
-
-Using Intel® DPDK Contigmem Module
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The amount of physically contiguous memory along with the number of physically
-contiguous blocks can be set at runtime and prior to module loading using:
-
-.. code-block:: console
-
- root@host:~ # kenv hw.contigmem.num_buffers=n
- root@host:~ # kenv hw.contigmem.buffer_size=m
-
-The kernel environment variables can also be specified during boot by placing the
-following in /boot/loader.conf:
-
-::
-
- hw.contigmem.num_buffers=n hw.contigmem.buffer_size=m
-
-The variables can be inspected using the following command:
-
-.. code-block:: console
-
- root@host:~ # sysctl -a hw.contigmem
-
-Where n is the number of blocks and m is the size in bytes of each area of
-contiguous memory. A default of two buffers of size 1073741824 bytes (1 Gigabyte)
-each is set during module load if they are not specified in the environment.
-
-.. note::
-
- The /boot/loader.conf file may not exist, but can be created as a root user
- and should be given permissions as follows:
-
-.. code-block:: console
-
- root@host:~ # chmod 644 /boot/loader.conf
git.droids-corp.org / dpdk.git / commitdiff