From b63264c8342e6a1b6971c79550d2af2024b6a4de Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Tue, 14 Aug 2018 18:52:30 +0100 Subject: New upstream version 18.08 Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a Signed-off-by: Luca Boccassi --- doc/guides/linux_gsg/build_sample_apps.rst | 16 ++- .../linux_gsg/cross_build_dpdk_for_arm64.rst | 132 +++++++++++++++++++++ doc/guides/linux_gsg/index.rst | 1 + doc/guides/linux_gsg/linux_drivers.rst | 2 +- 4 files changed, 149 insertions(+), 2 deletions(-) create mode 100644 doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst (limited to 'doc/guides/linux_gsg') diff --git a/doc/guides/linux_gsg/build_sample_apps.rst b/doc/guides/linux_gsg/build_sample_apps.rst index 39a47b71..332424e0 100644 --- a/doc/guides/linux_gsg/build_sample_apps.rst +++ b/doc/guides/linux_gsg/build_sample_apps.rst @@ -110,7 +110,13 @@ The EAL options are as follows: ``[domain:]bus:devid.func`` values. Cannot be used with ``-b`` option. * ``--socket-mem``: - Memory to allocate from hugepages on specific sockets. + Memory to allocate from hugepages on specific sockets. In dynamic memory mode, + this memory will also be pinned (i.e. not released back to the system until + application closes). + +* ``--socket-limit``: + Limit maximum memory available for allocation on each socket. Does not support + legacy memory mode. * ``-d``: Add a driver or driver directory to be loaded. @@ -148,6 +154,14 @@ The EAL options are as follows: * ``--vfio-intr``: Specify interrupt type to be used by VFIO (has no effect if VFIO is not used). +* ``--legacy-mem``: + Run DPDK in legacy memory mode (disable memory reserve/unreserve at runtime, + but provide more IOVA-contiguous memory). + +* ``--single-file-segments``: + Store memory segments in fewer files (dynamic memory mode only - does not + affect legacy memory mode). + The ``-c`` or ``-l`` and option is mandatory; the others are optional. Copy the DPDK application binary to your target, then run the application as follows diff --git a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst new file mode 100644 index 00000000..9d1f0fa0 --- /dev/null +++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst @@ -0,0 +1,132 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 ARM Corporation. + +Cross compile DPDK for ARM64 +============================ +This chapter describes how to cross compile DPDK for ARM64 from x86 build hosts. + +.. note:: + + Whilst it is recommended to natively build DPDK on ARM64 (just + like with x86), it is also possible to cross-build DPDK for ARM64. An + ARM64 cross compile GNU toolchain is used for this. + +Obtain the cross tool chain +--------------------------- +The latest cross compile tool chain can be downloaded from: +https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/. + +Following is the step to get the version 7.2.1, latest one at the time of this writing. + +.. code-block:: console + + wget https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz + +Unzip and add into the PATH +--------------------------- + +.. code-block:: console + + tar -xvf gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz + export PATH=$PATH:/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu/bin + +.. note:: + + For the host requirements and other info, refer to the release note section: https://releases.linaro.org/components/toolchain/binaries/latest/ + +Getting the prerequisite library +-------------------------------- + +NUMA is required by most modern machines, not needed for non-NUMA architectures. + +.. note:: + + For compiling the NUMA lib, run libtool --version to ensure the libtool version >= 2.2, + otherwise the compilation will fail with errors. + +.. code-block:: console + + git clone https://github.com/numactl/numactl.git + cd numactl + git checkout v2.0.11 -b v2.0.11 + ./autogen.sh + autoconf -i + ./configure --host=aarch64-linux-gnu CC=aarch64-linux-gnu-gcc --prefix= + make install + +The numa header files and lib file is generated in the include and lib folder respectively under . + +.. _augment_the_cross_toolchain_with_numa_support: + +Augment the cross toolchain with NUMA support +--------------------------------------------- + +.. note:: + + This way is optional, an alternative is to use extra CFLAGS and LDFLAGS, depicted in :ref:`configure_and_cross_compile_dpdk_build` below. + +Copy the NUMA header files and lib to the cross compiler's directories: + +.. code-block:: console + + cp /include/numa*.h /gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/include/ + cp /lib/libnuma.a /gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/7.2.1/ + +.. _configure_and_cross_compile_dpdk_build: + +Configure and cross compile DPDK Build +-------------------------------------- +To configure a build, choose one of the target configurations, like arm64-dpaa2-linuxapp-gcc and arm64-thunderx-linuxapp-gcc. + +.. code-block:: console + + make config T=arm64-armv8a-linuxapp-gcc + +To cross-compile, without compiling the kernel modules, use the following command: + +.. code-block:: console + + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n CONFIG_RTE_EAL_IGB_UIO=n + +To cross-compile, including the kernel modules, the kernel source tree needs to be specified by setting +RTE_KERNELDIR: + +.. code-block:: console + + make -j CROSS=aarch64-linux-gnu- RTE_KERNELDIR= CROSS_COMPILE=aarch64-linux-gnu- + +To compile for non-NUMA targets, without compiling the kernel modules, use the following command: + +.. code-block:: console + + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n CONFIG_RTE_EAL_IGB_UIO=n CONFIG_RTE_LIBRTE_VHOST_NUMA=n CONFIG_RTE_EAL_NUMA_AWARE_HUGEPAGES=n + +.. note:: + + 1. EXTRA_CFLAGS and EXTRA_LDFLAGS should be added to include the NUMA headers and link the library respectively, + if the above step :ref:`augment_the_cross_toolchain_with_numa_support` was skipped therefore the toolchain was not + augmented with NUMA support. + + 2. "-isystem /include" should be add to EXTRA_CFLAGS, otherwise the numa.h file will get a lot of compiling + errors of Werror=cast-qual, Werror=strict-prototypes and Werror=old-style-definition. + + An example is given below: + + .. code-block:: console + + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n CONFIG_RTE_EAL_IGB_UIO=n EXTRA_CFLAGS="-isystem /include" EXTRA_LDFLAGS="-L/lib -lnuma" + +Meson Cross Compiling DPDK +-------------------------- + +To cross-compile DPDK on a desired target machine we can use the following +command:: + + meson cross-build --cross-file + ninja -C cross-build + +For example if the target machine is arm64 we can use the following +command:: + + meson arm64-build --cross-file config/arm/arm64_armv8_linuxapp_gcc + ninja -C arm64-build diff --git a/doc/guides/linux_gsg/index.rst b/doc/guides/linux_gsg/index.rst index 2a7bdfe9..077f9302 100644 --- a/doc/guides/linux_gsg/index.rst +++ b/doc/guides/linux_gsg/index.rst @@ -13,6 +13,7 @@ Getting Started Guide for Linux intro sys_reqs build_dpdk + cross_build_dpdk_for_arm64 linux_drivers build_sample_apps enable_func diff --git a/doc/guides/linux_gsg/linux_drivers.rst b/doc/guides/linux_gsg/linux_drivers.rst index 14381eed..371a817f 100644 --- a/doc/guides/linux_gsg/linux_drivers.rst +++ b/doc/guides/linux_gsg/linux_drivers.rst @@ -1,6 +1,6 @@ .. SPDX-License-Identifier: BSD-3-Clause Copyright(c) 2010-2015 Intel Corporation. - Copyright(c) 2017 Mellanox Corporation. + Copyright 2017 Mellanox Technologies, Ltd All rights reserved. .. _linux_gsg_linux_drivers: -- cgit 1.2.3-korg