From mboxrd@z Thu Jan 1 00:00:00 1970 From: John McNamara Subject: =?utf-8?q?=5BPATCH=5D_doc=3A_improve_freebsd_guide_lay?= =?utf-8?q?out?= Date: Tue, 15 Dec 2015 11:53:41 +0000 Message-ID: <1450180421-13569-1-git-send-email-john.mcnamara@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable To: dev@dpdk.org Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id B79B32716 for ; Tue, 15 Dec 2015 12:53:59 +0100 (CET) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Fixed FreeBSD Getting Started Guide rst layout to improve rendering in PDF. Signed-off-by: John McNamara --- doc/guides/freebsd_gsg/build_dpdk.rst | 205 ++++++++++++--------= ------ doc/guides/freebsd_gsg/build_sample_apps.rst | 158 ++++++++++---------- doc/guides/freebsd_gsg/install_from_ports.rst | 67 +++++---- doc/guides/freebsd_gsg/intro.rst | 22 +-- 4 files changed, 216 insertions(+), 236 deletions(-) diff --git a/doc/guides/freebsd_gsg/build_dpdk.rst b/doc/guides/freebsd_g= sg/build_dpdk.rst index 8eff599..ceacf7f 100644 --- a/doc/guides/freebsd_gsg/build_dpdk.rst +++ b/doc/guides/freebsd_gsg/build_dpdk.rst @@ -33,76 +33,63 @@ Compiling the DPDK Target from Source =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 -.. 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 DPDK also requires the use of FreeBSD* - ports to compile and function. - System Requirements ------------------- =20 The 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 on FreeBSD. Optionally, gcc may also be used in place of clang to build the DPDK, in which case it too must be installed prior to compiling the DPDK. The installation of these tools is covered in this section. =20 Compiling the DPDK requires the FreeBSD kernel sources, which should be -included during the installation of FreeBSD* on the development platform= . -The DPDK also requires the use of FreeBSD* ports to compile and function= . +included during the installation of FreeBSD on the development platform. +The DPDK also requires the use of FreeBSD ports to compile and function. =20 -To use the FreeBSD* ports system, it is required to update and extract t= he FreeBSD* +To use the FreeBSD ports system, it is required to update and extract th= e FreeBSD ports tree by issuing the following commands: =20 .. code-block:: console =20 - root@host:~ # portsnap fetch - root@host:~ # portsnap extract + portsnap fetch + portsnap extract =20 If the environment requires proxies for external communication, these ca= n be set using: =20 .. code-block:: console =20 - root@host:~ # setenv http_proxy : - root@host:~ # setenv ftp_proxy : - -The FreeBSD* ports below need to be installed prior to building the DPDK= . -In general these can be installed using the following set of commands: + setenv http_proxy : + setenv ftp_proxy : =20 -#. cd /usr/ports/ +The FreeBSD ports below need to be installed prior to building the DPDK. +In general these can be installed using the following set of commands:: =20 -#. make config-recursive + cd /usr/ports/ =20 -#. make install + make config-recursive =20 -#. make clean + make install =20 -Each port location can be found using: + make clean =20 -.. code-block:: console +Each port location can be found using:: =20 - user@host:~ # whereis + whereis =20 The ports required and their locations are as follows: =20 -dialog4ports - /usr/ports/ports-mgmt/dialog4ports +* dialog4ports: ``/usr/ports/ports-mgmt/dialog4ports`` =20 -GNU make(gmake) - /usr/ports/devel/gmake +* GNU make(gmake): ``/usr/ports/devel/gmake`` =20 -coreutils - /usr/ports/sysutils/coreutils +* coreutils: ``/usr/ports/sysutils/coreutils`` =20 -For compiling and using the DPDK with gcc, it too must be installed +For compiling and using the DPDK with gcc, the compiler must be installe= d from the ports collection: =20 -gcc: version 4.8 is recommended - /usr/ports/lang/gcc48 - (Ensure that CPU_OPTS is selected (default is OFF)) +* gcc: version 4.8 is recommended ``/usr/ports/lang/gcc48``. + Ensure that ``CPU_OPTS`` is selected (default is OFF). =20 When running the make config-recursive command, a dialog may be presente= d to the user. For the installation of the DPDK, the default options were used. @@ -111,7 +98,7 @@ user. For the installation of the DPDK, the default op= tions were used. =20 To avoid multiple dialogs being presented to the user during make in= stall, it is advisable before running the make install command to re-run th= e - make config -recursive command until no more dialogs are seen. + make config-recursive command until no more dialogs are seen. =20 =20 Install the DPDK and Browse Sources @@ -121,10 +108,12 @@ First, uncompress the archive and move to the DPDK = source directory: =20 .. code-block:: console =20 - user@host:~ # unzip DPDK-zip - user@host:~ # cd DPDK- - user@host:~/DPDK # ls - app/ config/ examples/ lib/ LICENSE.GPL LICENSE.LGPL Makefile mk/ sc= ripts/ tools/ + unzip DPDK-.zip + cd DPDK- + + ls + app/ config/ examples/ lib/ LICENSE.GPL LICENSE.LGPL Makefile + mk/ scripts/ tools/ =20 The DPDK is composed of several directories: =20 @@ -139,38 +128,36 @@ The DPDK is composed of several directories: Installation of the DPDK Target Environments -------------------------------------------- =20 -The format of a DPDK target is: +The format of a DPDK target is:: =20 -ARCH-MACHINE-EXECENV-TOOLCHAIN + ARCH-MACHINE-EXECENV-TOOLCHAIN =20 Where: =20 -* ARCH is: x86_64 +* ``ARCH`` is: ``x86_64`` =20 -* MACHINE is: native +* ``MACHINE`` is: ``native`` =20 -* EXECENV is: bsdapp +* ``EXECENV`` is: ``bsdapp`` =20 -* TOOLCHAIN is: gcc | clang +* ``TOOLCHAIN`` is: ``gcc`` | ``clang`` =20 The configuration files for the DPDK targets can be found in the DPDK/co= nfig -directory in the form of: - -:: +directory in the form of:: =20 defconfig_ARCH-MACHINE-EXECENV-TOOLCHAIN =20 .. note:: =20 - Configuration files are provided with the RTE_MACHINE optimization l= evel set. - Within the configuration files, the RTE_MACHINE configuration value = is set - to native, which means that the compiled software is tuned for the p= latform - on which it is built. For more information on this setting, and its - possible values, see the *DPDK Programmers Guide*. + Configuration files are provided with the ``RTE_MACHINE`` optimizatio= n level set. + Within the configuration files, the ``RTE_MACHINE`` configuration val= ue is set + to native, which means that the compiled software is tuned for the pl= atform + on which it is built. For more information on this setting, and its + possible values, see the *DPDK Programmers Guide*. =20 -To install and make the target, use "gmake install T=3D". +To make the target, use ``gmake install T=3D``. =20 -For example to compile for FreeBSD* use: +For example to compile for FreeBSD use: =20 .. code-block:: console =20 @@ -178,10 +165,10 @@ For example to compile for FreeBSD* use: =20 .. note:: =20 - 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 expli= citly - specified. For example, if compiling for gcc, where the gcc binary is c= alled - gcc4.8, the command would need to be "gmake install T=3D CC=3Dg= cc4.8". + If the compiler binary to be used does not correspond to that given i= n the + TOOLCHAIN part of the target, the compiler command may need to be exp= licitly + specified. For example, if compiling for gcc, where the gcc binary is= called + gcc4.8, the command would need to be ``gmake install T=3D CC=3D= gcc4.8``. =20 Browsing the Installed DPDK Environment Target ---------------------------------------------- @@ -194,8 +181,9 @@ contains the kernel modules to install: =20 .. code-block:: console =20 - user@host:~/DPDK # ls x86_64-native-bsdapp-gcc - app build hostapp include kmod lib Makefile + ls x86_64-native-bsdapp-gcc + + app build hostapp include kmod lib Makefile =20 =20 .. _loading_contigmem: @@ -216,13 +204,11 @@ module loading using: =20 .. code-block:: console =20 - root@host:~ # kenv hw.contigmem.num_buffers=3Dn - root@host:~ # kenv hw.contigmem.buffer_size=3Dm + kenv hw.contigmem.num_buffers=3Dn + kenv hw.contigmem.buffer_size=3Dm =20 The kernel environment variables can also be specified during boot by pl= acing the -following in /boot/loader.conf: - -:: +following in ``/boot/loader.conf``:: =20 hw.contigmem.num_buffers=3Dn hw.contigmem.buffer_size=3Dm =20 @@ -230,7 +216,7 @@ The variables can be inspected using the following co= mmand: =20 .. code-block:: console =20 - root@host:~ # sysctl -a hw.contigmem + sysctl -a hw.contigmem =20 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) @@ -245,27 +231,26 @@ is the DPDK target directory): =20 It is advisable to include the loading of the contigmem module during th= e boot process to avoid issues with potential memory fragmentation during later= system -up time. This can be achieved by copying the module to the /boot/kernel= / -directory and placing the following into /boot/loader.conf: - -:: +up time. This can be achieved by copying the module to the ``/boot/kern= el/`` +directory and placing the following into ``/boot/loader.conf``:: =20 contigmem_load=3D"YES" =20 .. note:: =20 The contigmem_load directive should be placed after any definitions = of - hw.contigmem.num_buffers and hw.contigmem.buffer_size if the default= values + ``hw.contigmem.num_buffers`` and ``hw.contigmem.buffer_size`` if the= default values are not to be used. =20 An error such as: =20 .. code-block:: console =20 - kldload: can't load ./x86_64-native-bsdapp-gcc/kmod/contigmem.ko: Ex= ec format error + kldload: can't load ./x86_64-native-bsdapp-gcc/kmod/contigmem.ko: + Exec format error =20 is generally attributed to not having enough contiguous memory -available and can be verified via dmesg or /var/log/messages: +available and can be verified via dmesg or ``/var/log/messages``: =20 .. code-block:: console =20 @@ -278,7 +263,7 @@ To avoid this error, reduce the number of buffers or = the buffer size. Loading the DPDK nic_uio Module ------------------------------- =20 -After loading the contigmem module, the nic_uio must also be loaded into= the +After loading the contigmem module, the ``nic_uio must`` also be loaded = into the running kernel prior to running any DPDK application. This module must be loaded using the kldload command as shown below (assuming that the cu= rrent directory is the DPDK target directory). @@ -290,28 +275,26 @@ directory is the DPDK target directory). .. note:: =20 If the ports to be used are currently bound to a existing kernel dri= ver - then the hw.nic_uio.bdfs sysctl value will need to be set before loa= ding the + 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. =20 -Currently loaded modules can be seen by using the "kldstat" command and = a module -can be removed from the running kernel by using "kldunload = ". +Currently loaded modules can be seen by using the ``kldstat`` command an= d a module +can be removed from the running kernel by using ``kldunload ``. =20 -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/k= ernel`` +and place the following into ``/boot/loader.conf``:: =20 nic_uio_load=3D"YES" =20 .. note:: =20 - nic_uio_load=3D"YES" must appear after the contigmem_load directive,= if it exists. + ``nic_uio_load=3D"YES"`` must appear after the contigmem_load direct= ive, if it exists. =20 -By default, the nic_uio module will take ownership of network ports if t= hey are +By default, the ``nic_uio`` module will take ownership of network ports = if they are recognized DPDK devices and are not owned by another module. However, si= nce 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 +already bound to a driver other than ``nic_uio``. The following sub-sect= ion describe how to query and modify the device ownership of the ports to be used by DPDK applications. =20 @@ -321,11 +304,11 @@ Binding Network Ports to the nic_uio Module ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =20 Device ownership can be viewed using the pciconf -l command. The example= below shows -four Intel=C2=AE 82599 network ports under "if_ixgbe" module ownership. +four Intel=C2=AE 82599 network ports under ``if_ixgbe`` module ownership= . =20 .. code-block:: console =20 - user@host:~ # pciconf -l + pciconf -l ix0@pci0:1:0:0: class=3D0x020000 card=3D0x00038086 chip=3D0x10fb8086= rev=3D0x01 hdr=3D0x00 ix1@pci0:1:0:1: class=3D0x020000 card=3D0x00038086 chip=3D0x10fb8086= rev=3D0x01 hdr=3D0x00 ix2@pci0:2:0:0: class=3D0x020000 card=3D0x00038086 chip=3D0x10fb8086= rev=3D0x01 hdr=3D0x00 @@ -333,41 +316,35 @@ four Intel=C2=AE 82599 network ports under "if_ixgb= e" module ownership. =20 The first column constitutes three components: =20 -#. Device name: ixN +#. Device name: ``ixN`` =20 -#. Unit name: pci0 +#. Unit name: ``pci0`` =20 -#. Selector (Bus:Device:Function): 1:0:0 +#. Selector (Bus:Device:Function): ``1:0:0`` =20 -Where no driver is associated with a device, the device name will be non= e. +Where no driver is associated with a device, the device name will be ``n= one``. =20 -By default, the FreeBSD* kernel will include built-in drivers for the mo= st common +By default, the FreeBSD kernel will include built-in drivers for the mos= t common devices; a kernel rebuild would normally be required to either remove th= e drivers or configure them as loadable modules. =20 -To avoid building a custom kernel, the nic_uio module can detach a netwo= rk port -from its current device driver. This is achieved by setting the hw.nic_= uio.bdfs -kernel environment variable prior to loading nic_uio, as follows: - -:: +To avoid building a custom kernel, the ``nic_uio`` module can detach a n= etwork port +from its current device driver. This is achieved by setting the ``hw.nic= _uio.bdfs`` +kernel environment variable prior to loading ``nic_uio``, as follows:: =20 hw.nic_uio.bdfs=3D"b:d:f,b:d:f,..." =20 Where a comma separated list of selectors is set, the list must not cont= ain any whitespace. =20 -For example to re-bind "ix2\@pci0:2:0:0" and "ix3\@pci0:2:0:1" to the ni= c_uio module -upon loading, use the following command: - -.. code-block:: console +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:: =20 kenv hw.nic_uio.bdfs=3D"2:0:0,2:0:1" =20 The variable can also be specified during boot by placing the following = into -"/boot/loader.conf", before the previously-described "nic_uio_load" line= - as -shown. - -:: +``/boot/loader.conf``, before the previously-described ``nic_uio_load`` = line - as +shown:: =20 hw.nic_uio.bdfs=3D"2:0:0,2:0:1" nic_uio_load=3D"YES" @@ -376,15 +353,15 @@ Binding Network Ports Back to their Original Kernel= Driver ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =20 If the original driver for a network port has been compiled into the ker= nel, -it is necessary to reboot FreeBSD* to restore the original device bindin= g. Before -doing so, update or remove the "hw.nic_uio.bdfs" in "/boot/loader.conf". +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.con= f``. =20 If rebinding to a driver that is a loadable module, the network port bin= ding can be reset without rebooting. To do so, unload both the target kernel modu= le and the -nic_uio module, modify or clear the "hw.nic_uio.bdfs" kernel environment= (kenv) +``nic_uio`` module, modify or clear the ``hw.nic_uio.bdfs`` kernel envir= onment (kenv) value, and reload the two drivers - first the original kernel driver, an= d then -the nic_uio driver. [The latter does not need to be reloaded unless ther= e are -ports that are still to be bound to it]. +the ``nic_uio driver``. Note: the latter does not need to be reloaded un= less there are +ports that are still to be bound to it. =20 Example commands to perform these steps are shown below: =20 @@ -393,9 +370,11 @@ Example commands to perform these steps are shown be= low: kldunload nic_uio kldunload =20 - kenv -u hw.nic_uio.bdfs # to clear the value completely + # To clear the value completely: + kenv -u hw.nic_uio.bdfs =20 - kenv hw.nic_uio.bdfs=3D"b:d:f,b:d:f,..." # to update the list of por= ts to bind + # To update the list of ports to bind: + kenv hw.nic_uio.bdfs=3D"b:d:f,b:d:f,..." =20 kldload =20 diff --git a/doc/guides/freebsd_gsg/build_sample_apps.rst b/doc/guides/fr= eebsd_gsg/build_sample_apps.rst index a89055f..823e1fb 100644 --- a/doc/guides/freebsd_gsg/build_sample_apps.rst +++ b/doc/guides/freebsd_gsg/build_sample_apps.rst @@ -40,71 +40,76 @@ Compiling a Sample Application ------------------------------ =20 Once a DPDK target environment directory has been created (such as -x86_64-native-bsdapp-clang), it contains all libraries and header files = required +``x86_64-native-bsdapp-clang``), it contains all libraries and header fi= les required to build an application. =20 -When compiling an application in the FreeBSD* environment on the DPDK, +When compiling an application in the FreeBSD environment on the DPDK, the following variables must be exported: =20 -* RTE_SDK - Points to the DPDK installation directory. +* ``RTE_SDK`` - Points to the DPDK installation directory. =20 -* RTE_TARGET - Points to the DPDK target environment directory. - For FreeBSD*, this is the x86_64-native-bsdapp-clang or - x86_64-native-bsdapp-gcc directory. +* ``RTE_TARGET`` - Points to the DPDK target environment directory. + For FreeBSD, this is the ``x86_64-native-bsdapp-clang`` or + ``x86_64-native-bsdapp-gcc`` directory. =20 -The following is an example of creating the helloworld application, whic= h runs -in the DPDK FreeBSD* environment. While the example demonstrates compili= ng -using gcc version 4.8, compiling with clang will be similar, except that= the "CC=3D" -parameter can probably be omitted. The "helloworld" example may be found= in the -${RTE_SDK}/examples directory. +The following is an example of creating the ``helloworld`` application, = which runs +in the DPDK FreeBSD environment. While the example demonstrates compilin= g +using gcc version 4.8, compiling with clang will be similar, except that= the ``CC=3D`` +parameter can probably be omitted. The ``helloworld`` example may be fou= nd in the +``${RTE_SDK}/examples`` directory. =20 -The directory contains the main.c file. This file, when combined with t= he +The directory contains the ``main.c`` file. This file, when combined wit= h the libraries in the DPDK target environment, calls the various functions to initialize the DPDK environment, then launches an entry point (dispatch -application) for each core to be utilized. By default, the binary is ge= nerated +application) for each core to be utilized. By default, the binary is gen= erated in the build directory. =20 .. code-block:: console =20 - user@host:~/DPDK$ cd examples/helloworld/ - user@host:~/DPDK/examples/helloworld$ setenv RTE_SDK $HOME/DPDK - user@host:~/DPDK/examples/helloworld$ setenv RTE_TARGET x86_64-nativ= e-bsdapp-gcc - user@host:~/DPDK/examples/helloworld$ gmake CC=3Dgcc48 - CC main.o - LD helloworld - INSTALL-APP helloworld - INSTALL-MAP helloworld.map - user@host:~/DPDK/examples/helloworld$ ls build/app - helloworld helloworld.map + setenv RTE_SDK /home/user/DPDK + cd $(RTE_SDK) + cd examples/helloworld/ + setenv RTE_SDK $HOME/DPDK + setenv RTE_TARGET x86_64-native-bsdapp-gcc + + gmake CC=3Dgcc48 + CC main.o + LD helloworld + INSTALL-APP helloworld + INSTALL-MAP helloworld.map + + ls build/app + helloworld helloworld.map =20 .. note:: =20 - In the above example, helloworld was in the directory structure of t= he - DPDK. However, it could have been located outside the directory + In the above example, ``helloworld`` was in the directory structure = of the + DPDK. However, it could have been located outside the directory structure to keep the DPDK structure intact. In the following case, - the helloworld application is copied to a new directory as a new sta= rting + the ``helloworld`` application is copied to a new directory as a new= starting point. =20 .. code-block:: console =20 - user@host:~$ setenv RTE_SDK /home/user/DPDK - user@host:~$ cp -r $(RTE_SDK)/examples/helloworld my_rte_app - user@host:~$ cd my_rte_app/ - user@host:~$ setenv RTE_TARGET x86_64-native-bsdapp-gcc - user@host:~/my_rte_app$ gmake CC=3Dgcc48 - CC main.o - LD helloworld - INSTALL-APP helloworld - INSTALL-MAP helloworld.map + setenv RTE_SDK /home/user/DPDK + cp -r $(RTE_SDK)/examples/helloworld my_rte_app + cd my_rte_app/ + setenv RTE_TARGET x86_64-native-bsdapp-gcc + + gmake CC=3Dgcc48 + CC main.o + LD helloworld + INSTALL-APP helloworld + INSTALL-MAP helloworld.map =20 .. _running_sample_app: =20 Running a Sample Application ---------------------------- =20 -#. The contigmem and nic_uio modules must be set up prior to running an= application. +#. The ``contigmem`` and ``nic_uio`` modules must be set up prior to ru= nning an application. =20 -#. Any ports to be used by the application must be already bound to the= nic_uio module, +#. Any ports to be used by the application must be already bound to the= ``nic_uio`` module, as described in section :ref:`binding_network_ports`, prior to runni= ng the application. The application is linked with the DPDK target environment's Environ= ment Abstraction Layer (EAL) library, which provides some options that ar= e generic @@ -114,69 +119,68 @@ The following is the list of options that can be gi= ven to the EAL: =20 .. code-block:: console =20 - ./rte-app -n NUM [-c COREMASK] [-b ] [-r NUM]= [-v] [--proc-type ] + ./rte-app -n NUM [-c COREMASK] [-b ] \ + [-r NUM] [-v] [--proc-type ] =20 .. note:: =20 EAL has a common interface between all operating systems and is base= d on the - Linux* notation for PCI devices. For example, a FreeBSD* device sele= ctor of - pci0:2:0:1 is referred to as 02:00.1 in EAL. + Linux notation for PCI devices. For example, a FreeBSD device select= or of + ``pci0:2:0:1`` is referred to as ``02:00.1`` in EAL. =20 -The EAL options for FreeBSD* are as follows: +The EAL options for FreeBSD are as follows: =20 -* -c COREMASK - : A hexadecimal bit mask of the cores to run on. Note that core num= bering +* ``-c COREMASK``: + A hexadecimal bit mask of the cores to run on. Note that core numbe= ring can change between platforms and should be determined beforehand. =20 -* -n NUM - : Number of memory channels per processor socket. +* ``-n NUM``: + Number of memory channels per processor socket. =20 -* -b - : blacklisting of ports; prevent EAL from using specified PCI device - (multiple -b options are allowed). +* ``-b ``: + Blacklisting of ports; prevent EAL from using specified PCI device + (multiple ``-b`` options are allowed). =20 -* --use-device - : use the specified Ethernet device(s) only. Use comma-separate - <[domain:]bus:devid.func> values. Cannot be used with -b option. +* ``--use-device``: + Use the specified Ethernet device(s) only. Use comma-separate + ``[domain:]bus:devid.func`` values. Cannot be used with ``-b`` optio= n. =20 -* -r NUM - : Number of memory ranks. +* ``-r NUM``: + Number of memory ranks. =20 -* -v - : Display version information on startup. +* ``-v``: + Display version information on startup. =20 -* --proc-type - : The type of process instance. +* ``--proc-type``: + The type of process instance. =20 -Other options, specific to Linux* and are not supported under FreeBSD* a= re as follows: +Other options, specific to Linux and are not supported under FreeBSD are= as follows: =20 -* socket-mem - : Memory to allocate from hugepages on specific sockets. +* ``socket-mem``: + Memory to allocate from hugepages on specific sockets. =20 -* --huge-dir - : The directory where hugetlbfs is mounted. +* ``--huge-dir``: + The directory where hugetlbfs is mounted. =20 -* --file-prefix - : The prefix text used for hugepage filenames. +* ``--file-prefix``: + The prefix text used for hugepage filenames. =20 -* -m MB - : Memory to allocate from hugepages, regardless of processor socket. - It is recommended that --socket-mem be used instead of this option. +* ``-m MB``: + Memory to allocate from hugepages, regardless of processor socket. + It is recommended that ``--socket-mem`` be used instead of this opti= on. =20 -The -c and the -n options are mandatory; the others are optional. +The ``-c`` option is mandatory; the others are optional. =20 Copy the DPDK application binary to your target, then run the applicatio= n as follows (assuming the platform has four memory channels, and that cor= es 0-3 -are present and are to be used for running the application): - -.. code-block:: console +are present and are to be used for running the application):: =20 - root@target:~$ ./helloworld -c f -n 4 + ./helloworld -c f -n 4 =20 .. note:: =20 - The --proc-type and --file-prefix EAL options are used for running m= ultiple - DPDK processes. See the =E2=80=9CMulti-process Sample Application=E2= =80=9D chapter + The ``--proc-type`` and ``--file-prefix`` EAL options are used for r= unning multiple + DPDK processes. See the "Multi-process Sample Application" chapter in the *DPDK Sample Applications User Guide and the DPDK Programmers Guide* for more details. =20 @@ -187,14 +191,14 @@ Running DPDK Applications Without Root Privileges =20 Although applications using the DPDK use network ports and other hardwar= e resources directly, with a number of small permission adjustments, it is= possible -to run these applications as a user other than =E2=80=9Croot=E2=80=9D. = To do so, the ownership, +to run these applications as a user other than "root". To do so, the ow= nership, or permissions, on the following file system objects should be adjusted = to ensure that the user account being used to run the DPDK application has access to them: =20 -* The userspace-io device files in /dev, for example, /dev/uio0, /dev/= uio1, and so on +* The userspace-io device files in ``/dev``, for example, ``/dev/uio0`= `, ``/dev/uio1``, and so on =20 -* The userspace contiguous memory device: /dev/contigmem +* The userspace contiguous memory device: ``/dev/contigmem`` =20 .. note:: =20 diff --git a/doc/guides/freebsd_gsg/install_from_ports.rst b/doc/guides/f= reebsd_gsg/install_from_ports.rst index 47e49b4..8177029 100644 --- a/doc/guides/freebsd_gsg/install_from_ports.rst +++ b/doc/guides/freebsd_gsg/install_from_ports.rst @@ -35,41 +35,41 @@ Installing DPDK from the Ports Collection =20 The easiest way to get up and running with the DPDK on FreeBSD is to install it from the ports collection. Details of getting and using the p= orts -collection are documented in the FreeBSD Handbook at: - - https://www.freebsd.org/doc/handbook/ports-using.html +collection are documented in the +`FreeBSD Handbook `_. =20 .. note:: =20 - Testing has been performed using FreeBSD* 10.0-RELEASE (x86_64) and = requires the + Testing has been performed using FreeBSD 10.0-RELEASE (x86_64) and r= equires the installation of the kernel sources, which should be included during = the - installation of FreeBSD*. + installation of FreeBSD. =20 Installing the DPDK FreeBSD Port -------------------------------- =20 -On a system with the ports collection installed in /usr/ports, the DPDK +On a system with the ports collection installed in ``/usr/ports``, the D= PDK can be installed using the commands: =20 .. code-block:: console =20 - root@host:~ # cd /usr/ports/net/dpdk + cd /usr/ports/net/dpdk =20 - root@host:~ # make install + make install =20 After the installation of the DPDK port, instructions will be printed on how to install the kernel modules required to use the DPDK. A more complete version of these instructions can be found in the sections :ref:`loading_contigmem` and :ref:`loading_nic_uio`. Normally, lines lik= e -those below would be added to the file "/boot/loader.conf". +those below would be added to the file ``/boot/loader.conf``. =20 .. code-block:: console =20 - # reserve 2 x 1G blocks of contiguous memory using contigmem driver + # Reserve 2 x 1G blocks of contiguous memory using contigmem driver: hw.contigmem.num_buffers=3D2 hw.contigmem.buffer_size=3D1073741824 contigmem_load=3D"YES" - # identify NIC devices for DPDK apps to use and load nic_uio driver + + # Identify NIC devices for DPDK apps to use and load nic_uio driver: hw.nic_uio.bdfs=3D"2:0:0,2:0:1" nic_uio_load=3D"YES" =20 @@ -77,41 +77,42 @@ Compiling and Running the Example Applications ---------------------------------------------- =20 When the DPDK has been installed from the ports collection it installs -its example applications in "/usr/local/share/dpdk/examples" - also acce= ssible via -symlink as "/usr/local/share/examples/dpdk". These examples can be compi= led and +its example applications in ``/usr/local/share/dpdk/examples`` - also ac= cessible via +symlink as ``/usr/local/share/examples/dpdk``. These examples can be com= piled and run as described in :ref:`compiling_sample_apps`. In this case, the requ= ired environmental variables should be set as below: =20 -* RTE_SDK=3D/usr/local/share/dpdk +* ``RTE_SDK=3D/usr/local/share/dpdk`` =20 -* RTE_TARGET=3Dx86_64-native-bsdapp-clang +* ``RTE_TARGET=3Dx86_64-native-bsdapp-clang`` =20 .. note:: =20 - To install a copy of the DPDK compiled using gcc, please download the - official DPDK package from http://dpdk.org/ and install manually using - the instructions given in the next chapter, :ref:`building_from_source` + To install a copy of the DPDK compiled using gcc, please download the + official DPDK package from http://dpdk.org/ and install manually usin= g + the instructions given in the next chapter, :ref:`building_from_sourc= e` =20 An example application can therefore be copied to a user's home director= y and compiled and run as below: =20 .. code-block:: console =20 - user@host:~$ export RTE_SDK=3D/usr/local/share/dpdk + export RTE_SDK=3D/usr/local/share/dpdk =20 - user@host:~$ export RTE_TARGET=3Dx86_64-native-bsdapp-clang + export RTE_TARGET=3Dx86_64-native-bsdapp-clang =20 - user@host:~$ cp -r /usr/local/share/dpdk/examples/helloworld . + cp -r /usr/local/share/dpdk/examples/helloworld . =20 - user@host:~$ cd helloworld/ + cd helloworld/ =20 - user@host:~/helloworld$ gmake + gmake CC main.o LD helloworld INSTALL-APP helloworld INSTALL-MAP helloworld.map =20 - user@host:~/helloworld$ sudo ./build/helloworld -c F -n 2 + 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 @@ -121,9 +122,10 @@ compiled and run as below: 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, le= n 1073741824 - EAL: WARNING: clock_gettime cannot use CLOCK_MONOTONIC_RAW and HPET = is not available - clock timings may be less accurate. + EAL: Mapped memory segment 1 @ 0x802400000: len 1073741824 + EAL: Mapped memory segment 2 @ 0x842400000: 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=3D0x802006400) @@ -153,10 +155,11 @@ compiled and run as below: =20 .. note:: =20 - To run a 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` + To run a 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` =20 .. note:: - For an explanation of the command-line parameters that can be passed to= an - DPDK application, see section :ref:`running_sample_app`. + + For an explanation of the command-line parameters that can be passed = to an + DPDK application, see section :ref:`running_sample_app`. diff --git a/doc/guides/freebsd_gsg/intro.rst b/doc/guides/freebsd_gsg/in= tro.rst index 176358a..6fb1a74 100644 --- a/doc/guides/freebsd_gsg/intro.rst +++ b/doc/guides/freebsd_gsg/intro.rst @@ -34,20 +34,19 @@ Introduction This document contains instructions for installing and configuring the Data Plane Development Kit (DPDK) software. It is designed to get custom= ers up and running quickly and describes how to compile and run a -DPDK application in a FreeBSD* application (bsdapp) environment, without= going +DPDK application in a FreeBSD application (bsdapp) environment, without = going deeply into detail. =20 -For a comprehensive guide to installing and using FreeBSD*, the followin= g -handbook is available from the FreeBSD* Documentation Project: - -`http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/index.html `_ +For a comprehensive guide to installing and using FreeBSD, the following +handbook is available from the FreeBSD Documentation Project: +`FreeBSD Handbook `_. =20 .. note:: =20 - The DPDK is now available as part of the FreeBSD ports collection. - Installing via the ports collection infrastructure is now the recommend= ed - way to install the DPDK on FreeBSD, and is documented in the - next chapter, :ref:`install_from_ports`. + The DPDK is now available as part of the FreeBSD ports collection. + Installing via the ports collection infrastructure is now the recomme= nded + way to install the DPDK on FreeBSD, and is documented in the + next chapter, :ref:`install_from_ports`. =20 Documentation Roadmap --------------------- @@ -82,8 +81,3 @@ The following is a list of DPDK documents in the sugges= ted reading order: * **Sample Applications User Guide**: Describes a set of sample applic= ations. Each chapter describes a sample application that showcases specific = functionality and provides instructions on how to compile, run and use the sample = application. - -.. note:: - - These documents are available for download as a separate documentati= on - package at the same location as the DPDK code package. --=20 2.5.0