1.. SPDX-License-Identifier: BSD-3-Clause 2 Copyright(c) 2018 Intel Corporation. 3 4EAL parameters 5============== 6 7This document contains a list of all EAL parameters. These parameters can be 8used by any DPDK application running on Linux. 9 10Common EAL parameters 11--------------------- 12 13The following EAL parameters are common to all platforms supported by DPDK. 14 15.. include:: eal_args.include.rst 16 17Linux-specific EAL parameters 18----------------------------- 19 20In addition to common EAL parameters, there are also Linux-specific EAL 21parameters. 22 23Device-related options 24~~~~~~~~~~~~~~~~~~~~~~ 25 26* ``--create-uio-dev`` 27 28 Create ``/dev/uioX`` files for devices bound to igb_uio kernel driver 29 (usually done by the igb_uio driver itself). 30 31* ``--vmware-tsc-map`` 32 33 Use VMware TSC map instead of native RDTSC. 34 35* ``--no-hpet`` 36 37 Do not use the HPET timer. 38 39* ``--vfio-intr <legacy|msi|msix>`` 40 41 Use specified interrupt mode for devices bound to VFIO kernel driver. 42 43* ``--vfio-vf-token <uuid>`` 44 45 Use specified VF token for devices bound to VFIO kernel driver. 46 47Multiprocessing-related options 48~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 49 50* ``--file-prefix <prefix name>`` 51 52 Use a different shared data file prefix for a DPDK process. This option 53 allows running multiple independent DPDK primary/secondary processes under 54 different prefixes. 55 56Memory-related options 57~~~~~~~~~~~~~~~~~~~~~~ 58 59* ``--legacy-mem`` 60 61 Use legacy DPDK memory allocation mode. 62 63* ``--socket-mem <amounts of memory per socket>`` 64 65 Preallocate specified amounts of memory per socket. The parameter is a 66 comma-separated list of values. For example:: 67 68 --socket-mem 1024,2048 69 70 This will allocate 1 gigabyte of memory on socket 0, and 2048 megabytes of 71 memory on socket 1. 72 73* ``--socket-limit <amounts of memory per socket>`` 74 75 Place a per-socket upper limit on memory use (non-legacy memory mode only). 76 0 will disable the limit for a particular socket. 77 78* ``--single-file-segments`` 79 80 Create fewer files in hugetlbfs (non-legacy mode only). 81 82* ``--huge-dir <path to hugetlbfs directory>`` 83 84 Use specified hugetlbfs directory instead of autodetected ones. 85 86* ``--huge-unlink`` 87 88 Unlink hugepage files after creating them (implies no secondary process 89 support). 90 91* ``--match-allocations`` 92 93 Free hugepages back to system exactly as they were originally allocated. 94 95Other options 96~~~~~~~~~~~~~ 97 98* ``--syslog <syslog facility>`` 99 100 Set syslog facility. Valid syslog facilities are:: 101 102 auth 103 cron 104 daemon 105 ftp 106 kern 107 lpr 108 mail 109 news 110 syslog 111 user 112 uucp 113 local0 114 local1 115 local2 116 local3 117 local4 118 local5 119 local6 120 local7 121