From: Anatoly Burakov Date: Mon, 19 Nov 2018 13:10:26 +0000 (+0000) Subject: doc: document all EAL parameters in one place X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=3ee567cfec37;p=dpdk.git doc: document all EAL parameters in one place Currently, the most complete (but still incomplete) user guide for EAL command-line parameters resides in user guide for testpmd. This is wrong on multiple levels, and should not be the case. To fix it, we have to create a document that lists all supported EAL command-line arguments. However, because different platforms support different subsets of available EAL parameters, instead of creating a single file, we will create a common file in doc/guides/common containing documentation for EAL parameters that are supported on all of our supported platforms (Linux and FreeBSD at the time of this writing). We will then include this document in the Getting Started guides for all supported platforms, so that any changes made to documentation for commonly supported EAL parameters will be reflected in Getting Started guides for all platforms. This patch also removes EAL parameters documentation from the testpmd user guide, and instead adds references to the newly created documents in both testpmd user guides and in sample applications guide. Signed-off-by: Anatoly Burakov Acked-by: Ferruh Yigit Reviewed-by: Rami Rosen --- diff --git a/doc/guides/freebsd_gsg/freebsd_eal_parameters.rst b/doc/guides/freebsd_gsg/freebsd_eal_parameters.rst new file mode 100644 index 0000000000..fba467a2ce --- /dev/null +++ b/doc/guides/freebsd_gsg/freebsd_eal_parameters.rst @@ -0,0 +1,20 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 Intel Corporation. + +EAL parameters +============== + +This document contains a list of all EAL parameters. These parameters can be +used by any DPDK application running on FreeBSD. + +Common EAL parameters +--------------------- + +The following EAL parameters are common to all platforms supported by DPDK. + +.. include:: ../linux_gsg/eal_args.include.rst + +FreeBSD-specific EAL parameters +------------------------------- + +There are currently no FreeBSD-specific EAL command-line parameters available. diff --git a/doc/guides/freebsd_gsg/index.rst b/doc/guides/freebsd_gsg/index.rst index fdb4df32e5..9af5988dc6 100644 --- a/doc/guides/freebsd_gsg/index.rst +++ b/doc/guides/freebsd_gsg/index.rst @@ -14,3 +14,4 @@ Getting Started Guide for FreeBSD install_from_ports build_dpdk build_sample_apps + freebsd_eal_parameters diff --git a/doc/guides/linux_gsg/eal_args.include.rst b/doc/guides/linux_gsg/eal_args.include.rst new file mode 100644 index 0000000000..cf421a56eb --- /dev/null +++ b/doc/guides/linux_gsg/eal_args.include.rst @@ -0,0 +1,146 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 Intel Corporation. + +Lcore-related options +~~~~~~~~~~~~~~~~~~~~~ + +* ``-c `` + + Set the hexadecimal bitmask of the cores to run on. + +* ``-l `` + + List of cores to run on + + The argument format is ``[-c2][,c3[-c4],...]`` + where ``c1``, ``c2``, etc are core indexes between 0 and 128. + +* ``--lcores `` + + Map lcore set to physical cpu set + + The argument format is:: + + [<,lcores[@cpus]>...] + + Lcore and CPU lists are grouped by ``(`` and ``)`` Within the group. + The ``-`` character is used as a range separator and ``,`` is used as a + single number separator. + The grouping ``()`` can be omitted for single element group. + The ``@`` can be omitted if cpus and lcores have the same value. + +.. Note:: + At a given instance only one core option ``--lcores``, ``-l`` or ``-c`` can + be used. + +* ``--master-lcore `` + + Core ID that is used as master. + +* ``-s `` + + Hexadecimal bitmask of cores to be used as service cores. + +Device-related options +~~~~~~~~~~~~~~~~~~~~~~ + +* ``-b, --pci-blacklist <[domain:]bus:devid.func>`` + + Blacklist a PCI device to prevent EAL from using it. Multiple -b options are + allowed. + +.. Note:: + PCI blacklist cannot be used with ``-w`` option. + +* ``-w, --pci-whitelist <[domain:]bus:devid.func>`` + + Add a PCI device in white list. + +.. Note:: + PCI whitelist cannot be used with ``-b`` option. + +* ``--vdev `` + + Add a virtual device using the format:: + + [,key=val, ...] + + For example:: + + --vdev 'net_pcap0,rx_pcap=input.pcap,tx_pcap=output.pcap' + +* ``-d `` + + Load external drivers. An argument can be a single shared object file, or a + directory containing multiple driver shared objects. Multiple -d options are + allowed. + +* ``--no-pci`` + + Disable PCI bus. + +Multiprocessing-related options +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +* ``--proc-type `` + + Set the type of the current process. + +Memory-related options +~~~~~~~~~~~~~~~~~~~~~~ + +* ``-n `` + + Set the number of memory channels to use. + +* ``-r `` + + Set the number of memory ranks (auto-detected by default). + +* ``-m `` + + Amount of memory to preallocate at startup. + +* ``--in-memory`` + + Do not create any shared data structures and run entirely in memory. Implies + ``--no-shconf`` and (if applicable) ``--huge-unlink``. + +* ``--iova-mode `` + + Force IOVA mode to a specific value. + +Debugging options +~~~~~~~~~~~~~~~~~ + +* ``--no-shconf`` + + No shared files created (implies no secondary process support). + +* ``--no-huge`` + + Use anonymous memory instead of hugepages (implies no secondary process + support). + +* ``--log-level `` + + Specify log level for a specific component. For example:: + + --log-level eal:8 + + Can be specified multiple times. + +Other options +~~~~~~~~~~~~~ + +* ``-h``, ``--help`` + + Display help message listing all EAL parameters. + +* ``-v`` + + Display the version information on startup. + +* ``mbuf-pool-ops-name``: + + Pool ops name for mbuf to use. diff --git a/doc/guides/linux_gsg/index.rst b/doc/guides/linux_gsg/index.rst index 077f930231..0f9f6242c1 100644 --- a/doc/guides/linux_gsg/index.rst +++ b/doc/guides/linux_gsg/index.rst @@ -16,6 +16,7 @@ Getting Started Guide for Linux cross_build_dpdk_for_arm64 linux_drivers build_sample_apps + linux_eal_parameters enable_func quick_start nic_perf_intel_platform diff --git a/doc/guides/linux_gsg/linux_eal_parameters.rst b/doc/guides/linux_gsg/linux_eal_parameters.rst new file mode 100644 index 0000000000..28aebfbda2 --- /dev/null +++ b/doc/guides/linux_gsg/linux_eal_parameters.rst @@ -0,0 +1,118 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2018 Intel Corporation. + +EAL parameters +============== + +This document contains a list of all EAL parameters. These parameters can be +used by any DPDK application running on Linux. + +Common EAL parameters +--------------------- + +The following EAL parameters are common to all platforms supported by DPDK. + +.. include:: eal_args.include.rst + +Linux-specific EAL parameters +----------------------------- + +In addition to common EAL parameters, there are also Linux-specific EAL +parameters. + +Device-related options +~~~~~~~~~~~~~~~~~~~~~~ + +* ``--create-uio-dev`` + + Create ``/dev/uioX`` files for devices bound to igb_uio kernel driver + (usually done by the igb_uio driver itself). + +* ``--vmware-tsc-map`` + + Use VMware TSC map instead of native RDTSC. + +* ``--no-hpet`` + + Do not use the HPET timer. + +* ``--vfio-intr `` + + Use specified interrupt mode for devices bound to VFIO kernel driver. + +Multiprocessing-related options +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +* ``--file-prefix `` + + Use a different shared data file prefix for a DPDK process. This option + allows running multiple independent DPDK primary/secondary processes under + different prefixes. + +* ``--base-virtaddr
`` + + Attempt to use a different starting address for all memory maps of the + primary DPDK process. This can be helpful if secondary processes cannot + start due to conflicts in address map. + +Memory-related options +~~~~~~~~~~~~~~~~~~~~~~ + +* ``--legacy-mem`` + + Use legacy DPDK memory allocation mode. + +* ``--socket-mem `` + + Preallocate specified amounts of memory per socket. The parameter is a + comma-separated list of values. For example:: + + --socket-mem 1024,2048 + + This will allocate 1 gigabyte of memory on socket 0, and 2048 megabytes of + memory on socket 1. + +* ``--socket-limit `` + + Place a per-socket upper limit on memory use (non-legacy memory mode only). + 0 will disable the limit for a particular socket. + +* ``--single-file-segments`` + + Create fewer files in hugetlbfs (non-legacy mode only). + +* ``--huge-dir `` + + Use specified hugetlbfs directory instead of autodetected ones. + +* ``--huge-unlink`` + + Unlink hugepage files after creating them (implies no secondary process + support). + +Other options +~~~~~~~~~~~~~ + +* ``--syslog `` + + Set syslog facility. Valid syslog facilities are:: + + auth + cron + daemon + ftp + kern + lpr + mail + news + syslog + user + uucp + local0 + local1 + local2 + local3 + local4 + local5 + local6 + local7 diff --git a/doc/guides/sample_app_ug/intro.rst b/doc/guides/sample_app_ug/intro.rst index 575995de0c..159bcf73b1 100644 --- a/doc/guides/sample_app_ug/intro.rst +++ b/doc/guides/sample_app_ug/intro.rst @@ -10,6 +10,16 @@ DPDK features. Users interested in getting started with DPDK can take the applications, try out the features, and then extend them to fit their needs. +Running Sample Applications +--------------------------- + +Some sample applications may have their own command-line parameters described in +their respective guides, however all of them also share the same EAL parameters. +Please refer to :doc:`../linux_gsg/linux_eal_parameters` or +:doc:`../freebsd_gsg/freebsd_eal_parameters` for a list of available EAL +command-line options. + + The DPDK Sample Applications ---------------------------- diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst index c79fd0d0ba..f717bd3f46 100644 --- a/doc/guides/testpmd_app_ug/run_app.rst +++ b/doc/guides/testpmd_app_ug/run_app.rst @@ -7,135 +7,9 @@ Running the Application EAL Command-line Options ------------------------ -The following are the EAL command-line options that can be used in conjunction with the testpmd, -or any other DPDK application. -See the DPDK Getting Started Guides for more information on these options. - -* ``-c COREMASK`` - - Set the hexadecimal bitmask of the cores to run on. - -* ``-l CORELIST`` - - List of cores to run on - - The argument format is ``[-c2][,c3[-c4],...]`` - where ``c1``, ``c2``, etc are core indexes between 0 and 128. - -* ``--lcores COREMAP`` - - Map lcore set to physical cpu set - - The argument format is:: - - [<,lcores[@cpus]>...] - - Lcore and CPU lists are grouped by ``(`` and ``)`` Within the group. - The ``-`` character is used as a range separator and ``,`` is used as a single number separator. - The grouping ``()`` can be omitted for single element group. - The ``@`` can be omitted if cpus and lcores have the same value. - -.. Note:: - At a given instance only one core option ``--lcores``, ``-l`` or ``-c`` can be used. - - -* ``--master-lcore ID`` - - Core ID that is used as master. - -* ``-n NUM`` - - Set the number of memory channels to use. - -* ``-b, --pci-blacklist domain:bus:devid.func`` - - Blacklist a PCI device to prevent EAL from using it. Multiple -b options are allowed. - -* ``-d LIB.so`` - - Load an external driver. Multiple -d options are allowed. - -* ``-w, --pci-whitelist domain:bus:devid:func`` - - Add a PCI device in white list. - -* ``-m MB`` - - Memory to allocate. See also ``--socket-mem``. - -* ``-r NUM`` - - Set the number of memory ranks (auto-detected by default). - -* ``-v`` - - Display the version information on startup. - -* ``--syslog`` - - Set the syslog facility. - -* ``--socket-mem`` - - Set the memory to allocate on specific sockets (use comma separated values). - -* ``--huge-dir`` - - Specify the directory where the hugetlbfs is mounted. - -* ``mbuf-pool-ops-name``: - - Pool ops name for mbuf to use. - -* ``--proc-type`` - - Set the type of the current process. - -* ``--file-prefix`` - - Prefix for hugepage filenames. - -* ``-vmware-tsc-map`` - - Use VMware TSC map instead of native RDTSC. - -* ``--vdev`` - - Add a virtual device using the format:: - - [,key=val, ...] - - For example:: - - --vdev 'net_pcap0,rx_pcap=input.pcap,tx_pcap=output.pcap' - -* ``--base-virtaddr`` - - Specify base virtual address. - -* ``--create-uio-dev`` - - Create ``/dev/uioX`` (usually done by hotplug). - -* ``--no-shconf`` - - No shared config (mmap-ed files). - -* ``--no-pci`` - - Disable pci. - -* ``--no-hpet`` - - Disable hpet. - -* ``--no-huge`` - - Use malloc instead of hugetlbfs. - -* ``--iova-mode `` - - Force IOVA mode to a specific value. +Please refer to :doc:`../linux_gsg/linux_eal_parameters` or +:doc:`../freebsd_gsg/freebsd_eal_parameters` for a list of available EAL +command-line options. Testpmd Command-line Options