Lines Matching +full:spi +full:- +full:tx +full:- +full:delay +full:- +full:us
1 .. SPDX-License-Identifier: GPL-2.0
7 Enable CONFIG_NET_PKTGEN to compile and build pktgen either in-kernel
31 overload type of benchmarking, as this could hurt the normal use-case.
33 Specifically increasing the TX ring buffer in the NIC::
35 # ethtool -G ethX tx 1024
37 A larger TX ring can improve pktgen's performance, while it can hurt
38 in the general case, 1) because the TX ring buffer might get larger
43 TX ring cause delay. Drivers usually delay cleaning up the
44 ring-buffers for various performance reasons, and packets stalling
45 the TX ring might just be waiting for cleanup.
48 (Intel 82599 chip). This driver (ixgbe) combines TX+RX ring cleanups,
49 and the cleanup interval is affected by the ethtool --coalesce setting
50 of parameter "rx-usecs".
54 # ethtool -C ethX rx-usecs 30
72 * add_device DEVICE@NAME -- adds a single device
73 * rem_device_all -- remove all associated devices
96 frags: 0 delay: 0 clone_skb: 64 ifname: eth4@0
106 pkts-sofar: 100000 errors: 0
107 started: 623913381008us stopped: 623913396439us idle: 25us
135 packet and update HW tx queue tail pointer once.
142 pgset "delay 5000" adds delay to hard_start_xmit(). nanoseconds
156 pgset "queue_map_min 0" Sets the min value of tx queue interval
157 pgset "queue_map_max 7" Sets the max value of tx queue interval, for multiqueue devices
186 pgset "spi [SPI_VALUE]" Set specific SA used to transform packet.
212 pgset "vlan_id 77" set VLAN ID 0-4095
213 pgset "vlan_p 3" set priority bit 0-7 (default 0)
214 pgset "vlan_cfi 0" set canonical format identifier 0-1 (default 0)
216 pgset "svlan_id 22" set SVLAN ID 0-4095
217 pgset "svlan_p 3" set priority bit 0-7 (default 0)
218 pgset "svlan_cfi 0" set canonical format identifier 0-1 (default 0)
243 ./pktgen_sample01_simple.sh -i eth4 -m 00:1B:21:3C:9D:F8 -d 192.168.8.2
247 ./pktgen_sample01_simple.sh [-vx] -i ethX
249 -i : ($DEV) output interface/device (required)
250 -s : ($PKT_SIZE) packet size
251 -d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed
252 -m : ($DST_MAC) destination MAC-addr
253 -p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed
254 -t : ($THREADS) threads to start
255 -f : ($F_THREAD) index of first thread (zero indexed CPU number)
256 -c : ($SKB_CLONE) SKB clones send before alloc new SKB
257 -n : ($COUNT) num messages to send per thread, 0 means indefinitely
258 -b : ($BURST) HW level bursting of SKBs
259 -v : ($VERBOSE) verbose
260 -x : ($DEBUG) debug
261 -6 : ($IP6) IPv6
262 -w : ($DELAY) Tx Delay value (ns)
263 -a : ($APPEND) Script will not reset generator's state, but will append its config
266 interface/device parameter "-i" sets variable $DEV. Copy the
273 also assign /proc/irq/XX/smp_affinity so that the TX interrupts are bound
276 Plus using the device flag QUEUE_MAP_CPU, which maps the SKBs TX queue
288 you can use "pgset spi SPI_VALUE" to specify which transformation mode
315 delay
361 spi (ipsec)
398 - ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/
399 - ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/examples/
401 Paper from Linux-Kongress in Erlangen 2004.
402 - ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/pktgen_paper.pdf
406 Grant Grundler for testing on IA-64 and parisc, Harald Welte, Lennert Buytenhek
410 Good luck with the linux net-development.