- Ciara
-
>-----Original Message-----
>From: Thomas Monjalon <tho...@monjalon.net>
>Sent: Wednesday 30 September 2020 23:09
>To: Power, Ciara <ciara.po...@intel.com>
>Cc: dev@dpdk.org; Mcnamara, John <john.mcnam...@intel.com>; Kovacevic,
>Marko <marko.kovace...@intel.com>
>Subject: Re: [dpdk-dev] [PATCH v5 03/20] doc: remove references to make
>from Linux guide
>
>Hi,
>
>Below are some comments. If you agree, I will do the changes myself while
>pushing to the main branch.
>
>
>21/09/2020 15:59, Ciara Power:
>> Make is no longer supported for compiling DPDK, references are now
>> removed in the documentation.
>>
>> Signed-off-by: Ciara Power <ciara.po...@intel.com>
>> Reviewed-by: Bruce Richardson <bruce.richard...@intel.com>
>> ---
>> doc/guides/linux_gsg/build_dpdk.rst | 16 +++++++++++-----
>> doc/guides/linux_gsg/build_sample_apps.rst | 18 +++---------------
>> doc/guides/linux_gsg/enable_func.rst | 13 +++++--------
>> doc/guides/linux_gsg/linux_drivers.rst | 18 +++++++++++-------
>> doc/guides/linux_gsg/sys_reqs.rst | 6 +-----
>> 5 files changed, 31 insertions(+), 40 deletions(-)
>>
>> diff --git a/doc/guides/linux_gsg/build_dpdk.rst
>> b/doc/guides/linux_gsg/build_dpdk.rst
>> index a895e1b0f4..85d04520bf 100644
>> --- a/doc/guides/linux_gsg/build_dpdk.rst
>> +++ b/doc/guides/linux_gsg/build_dpdk.rst
>> @@ -76,6 +76,8 @@ and the last step causing the dynamic loader `ld.so`
>to update its cache to take
>> distributions, `/usr/local/lib` and `/usr/local/lib64` should be added
>> to a file in `/etc/ld.so.conf.d/` before running `ldconfig`.
>>
>> +.. _adjusting_build_options:
>> +
>
>extra blank line
>
>>
>> Adjusting Build Options
>> ~~~~~~~~~~~~~~~~~~~~~~~
>> @@ -112,6 +114,9 @@ dependencies are met on the current system are
>built.
>> When `-Dexamples=all` is set as a meson option, meson will check each
>> example application to see if it can be built, and add all which can be
>> built
>to the list of tasks in the ninja build configuration file.
>>
>> +.. _building_app_using_installed_dpdk:
>> +
>> +
>
>extra blank line
>
>> Building Applications Using Installed DPDK
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> @@ -135,11 +140,12 @@ and the sources for that build are stored in
>``$(SRCS-y)``.
>>
>> .. note::
>>
>> - Unlike with the older make build system, the meson system is not
>> - designed to be used directly from a build directory. Instead it is
>> - recommended that it be installed either system-wide or to a known
>> - location in the user's home directory. The install location can be set
>> - using the `--prefix` meson option (default: `/usr/local`).
>> + Unlike with the make build system present used in older DPDK releases,
>> + the meson system is not designed to be used directly from a build
>> + directory. Instead it is recommended that it be installed either
>> + system-wide or to a known location in the user's home directory.
>> + The install location can be set using the `--prefix` meson option
>> + (default: `/usr/local`).
>
>I prefer the first version.
>The words "system present used" look weird.
>Anyway, if any reword is needed, better to change only the impacted line and
>keep the rest of the line wrapping untouched.
>
>>
>> an equivalent build recipe for a simple DPDK application using meson
>> as a build system is shown below:
>> diff --git a/doc/guides/linux_gsg/build_sample_apps.rst
>> b/doc/guides/linux_gsg/build_sample_apps.rst
>> index 2882883f95..f4bf0e71e5 100644
>> --- a/doc/guides/linux_gsg/build_sample_apps.rst
>> +++ b/doc/guides/linux_gsg/build_sample_apps.rst
>> @@ -1,7 +1,7 @@
>> .. SPDX-License-Identifier: BSD-3-Clause
>> Copyright(c) 2010-2014 Intel Corporation.
>>
>> -Compiling and Running Sample Applications
>> +Running Sample Applications
>> =========================================
>
>Underlining must be adjusted
>
>>
>> The chapter describes how to compile and run applications in an DPDK
>environment.
>> @@ -119,7 +119,7 @@ Copy the DPDK application binary to your target,
>> then run the application as fol (assuming the platform has four
>> memory channels per processor socket, and that cores 0-3 are present and
>are to be used for running the application)::
>>
>> - ./helloworld -l 0-3 -n 4
>> + ./dpdk-helloworld -l 0-3 -n 4
>>
>> .. note::
>>
>> @@ -183,19 +183,7 @@ If the DPDK cannot allocate enough memory on
>each
>> socket, the EAL initialization Additional Sample Applications
>> ------------------------------
>>
>> -Additional sample applications are included in the ${RTE_SDK}/examples
>directory.
>> +Additional sample applications are included in the DPDK examples
>directory.
>> These sample applications may be built and run in a manner similar to that
>described in earlier sections in this manual.
>> In addition, see the *DPDK Sample Applications User Guide* for a
>> description of the application, specific instructions on compilation and
>execution and some explanation of the code.
>> -
>> -Additional Test Applications
>> -----------------------------
>> -
>> -In addition, there are two other applications that are built when the
>libraries are created.
>> -The source files for these are in the DPDK/app directory and are called test
>and testpmd.
>> -Once the libraries are created, they can be found in the build/app
>> directory.
>> -
>> -* The test application provides a variety of specific tests for the
>> various
>functions in the DPDK.
>> -
>> -* The testpmd application provides a number of different packet
>throughput tests and
>> - examples of features such as how to use the Flow Director found in the
>Intel(r) 82599 10 Gigabit Ethernet Controller.
>
>OK to remove the test applications from the page dedicated to samples.
>A lot of similar cleanup could be done if someone volunteers.
>
>> --- a/doc/guides/linux_gsg/enable_func.rst
>> +++ b/doc/guides/linux_gsg/enable_func.rst
>[...]
>> @@ -128,13 +130,8 @@ Loading the DPDK KNI Kernel Module
>> ----------------------------------
>>
>> To run the DPDK Kernel NIC Interface (KNI) sample application, an extra
>kernel module (the kni module) must be loaded into the running kernel.
>> -The module is found in the kmod sub-directory of the DPDK target
>directory.
>> -Similar to the loading of the ``igb_uio`` module, this module should
>> be loaded using the insmod command as shown below -(assuming that the
>current directory is the DPDK target directory):
>> -
>> -.. code-block:: console
>> -
>> - insmod kmod/rte_kni.ko
>> +The module is found in the kernel/linux sub-directory of the DPDK build
>directory.
>> +This can be enabled in the same way as the ``igb_uio`` module, please see
>:ref:`load_uio` for details.
>
>The only relevant info in "load_uio" chapter is to use insmod.
>I think it is better to keep some lines above:
>
>It should be loaded using the insmod command::
>
> insmod kmod/rte_kni.ko
>
>> --- a/doc/guides/linux_gsg/linux_drivers.rst
>> +++ b/doc/guides/linux_gsg/linux_drivers.rst
>> @@ -12,6 +12,9 @@ Different PMDs may require different kernel drivers in
>order to work properly.
>> Depends on the PMD being used, a corresponding kernel driver should
>> be load and bind to the network ports.
>>
>> +.. _load_uio:
>> +
>> +
>
>This anchor is not need in my opinion.
>
>> UIO
>> ---
>>
>> @@ -28,19 +31,20 @@ can provide the uio capability. This module can be
>loaded using the command:
>> ``uio_pci_generic`` module doesn't support the creation of virtual
>functions.
>>
>> As an alternative to the ``uio_pci_generic``, the DPDK also includes
>> the igb_uio -module which can be found in the kmod subdirectory
>> referred to above. It can
>> +module which can be found in the kernel/linux subdirectory referred
>> +to above. It can
>> be loaded as shown below:
>>
>> .. code-block:: console
>>
>> sudo modprobe uio
>> - sudo insmod kmod/igb_uio.ko
>> + sudo insmod <build_dir>/kernel/linux/igb_uio/igb_uio.ko
>>
>> .. note::
>>
>> - ``igb_uio`` module is disabled by default starting from ``DPDK v20.02``.
>> - To build it, the config option ``CONFIG_RTE_EAL_IGB_UIO`` should be
>enabled.
>> - It is planned to move ``igb_uio`` module to a different git repository.
>> + Building DPDK Linux kernel modules is disabled by default starting from
>DPDK v20.02.
>> + To enable them again, the config option "enable_kmods" needs to be set
>in the meson
>> + build configuration. See :ref:`adjusting_build_options` for details on
>> how
>to set/clear
>> + build options. It is planned to move ``igb_uio`` module to a different
>> git
>repository.
>
>In general it is better to split the lines logically to ease future patches
>diff.
>
>
>
>
