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diff --git a/samples/pktgen/README.rst b/samples/pktgen/README.rst new file mode 100644 index 000000000..f4adeed5f --- /dev/null +++ b/samples/pktgen/README.rst @@ -0,0 +1,64 @@ +Sample and benchmark scripts for pktgen (packet generator) +========================================================== +This directory contains some pktgen sample and benchmark scripts, that +can easily be copied and adjusted for your own use-case. + +General doc is located in kernel: Documentation/networking/pktgen.rst + +Helper include files +==================== +This directory contains two helper shell files, that can be "included" +by shell source'ing. Namely "functions.sh" and "parameters.sh". + +Common parameters +----------------- +The parameters.sh file support easy and consistant parameter parsing +across the sample scripts. Usage example is printed on errors:: + + Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX + -i : ($DEV) output interface/device (required) + -s : ($PKT_SIZE) packet size + -d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed + -m : ($DST_MAC) destination MAC-addr + -p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed + -t : ($THREADS) threads to start + -f : ($F_THREAD) index of first thread (zero indexed CPU number) + -c : ($SKB_CLONE) SKB clones send before alloc new SKB + -n : ($COUNT) num messages to send per thread, 0 means indefinitely + -b : ($BURST) HW level bursting of SKBs + -v : ($VERBOSE) verbose + -x : ($DEBUG) debug + -6 : ($IP6) IPv6 + -w : ($DELAY) Tx Delay value (ns) + -a : ($APPEND) Script will not reset generator's state, but will append its config + +The global variable being set is also listed. E.g. the required +interface/device parameter "-i" sets variable $DEV. + +"-a" parameter may be used to create different flows simultaneously. +In this mode script will keep the existing config, will append its settings. +In this mode you'll have to manually run traffic with "pg_ctrl start". + +For example you may use: + + source ./samples/pktgen/functions.sh + pg_ctrl reset + # add first device + ./pktgen_sample06_numa_awared_queue_irq_affinity.sh -a -i ens1f0 -m 34:80:0d:a3:fc:c9 -t 8 + # add second device + ./pktgen_sample06_numa_awared_queue_irq_affinity.sh -a -i ens1f1 -m 34:80:0d:a3:fc:c9 -t 8 + # run joint traffic on two devs + pg_ctrl start + +Common functions +---------------- +The functions.sh file provides; Three different shell functions for +configuring the different components of pktgen: pg_ctrl(), pg_thread() +and pg_set(). + +These functions correspond to pktgens different components. + * pg_ctrl() control "pgctrl" (/proc/net/pktgen/pgctrl) + * pg_thread() control the kernel threads and binding to devices + * pg_set() control setup of individual devices + +See sample scripts for usage examples. |