kernel/linux.git/samples/pktgen, branch v6.1.168

samples: pktgen: correct dev to DEV

2024-11-22T14:37:30+00:00

[ Upstream commit 3342dc8b4623d835e7dd76a15cec2e5a94fe2f93 ] In the pktgen_sample01_simple.sh script, the device variable is uppercase 'DEV' instead of lowercase 'dev'. Because of this typo, the script cannot enable UDP tx checksum. Fixes: 460a9aa23de6 ("samples: pktgen: add UDP tx checksum support") Signed-off-by: Wei Fang Reviewed-by: Simon Horman Acked-by: Jesper Dangaard Brouer Link: https://patch.msgid.link/20241112030347.1849335-1-wei.fang@nxp.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

samples: pktgen: add trap SIGINT for printing execution result

2021-08-25T12:44:30+00:00

All pktgen samples can send indefinitely num messages per thread by setting the count option to 0(-n 0). If running sample with setting count 0 and press Ctrl-C to stop this program, the program prints the result of the execution so far. Currently, the samples besides sample{3...5} don't work properly. Because Ctrl-C stops the script, not just pktgen. This is results of samples: # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 0 Running... ctrl^C to stop ^CDevice: eth0@0 Result: OK: 569657(c569538+d118) usec, 84650 (60byte,0frags) 148597pps 71Mb/sec (71326560bps) errors: 0 # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample01_simple.sh -n 0 Running... ctrl^C to stop ^C In order to solve this, this commit adds trap SIGINT. Also, this commit changes control_c function to print_result to maintain consistency with other samples. Signed-off-by: Juhee Kang Signed-off-by: David S. Miller

samples: pktgen: fix to print when terminated normally

2021-08-25T12:44:30+00:00

Currently, most pktgen samples print the execution result when the program is terminated normally. However, sample03 doesn't work appropriately. This is results of samples: # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample04_many_flows.sh -n 1 Running... ctrl^C to stop Device: eth0@0 Result: OK: 19(c5+d13) usec, 1 (60byte,0frags) 51762pps 24Mb/sec (24845760bps) errors: 0 # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample03_burst_single_flow.sh -n 1 Running... ctrl^C to stop The reason why it doesn't print the execution result when the program is terminated usually is that sample03 doesn't call the function which prints the result, unlike other samples. So, this commit solves this issue by calling the function before termination. Also, this commit changes control_c function to print_result to maintain consistency with other samples. Signed-off-by: Juhee Kang Signed-off-by: David S. Miller

samples: pktgen: add missing IPv6 option to pktgen scripts

2021-08-16T10:02:09+00:00

Currently, "sample04" and "sample05" are not working properly when running with an IPv6 option("-6"). The commit 0f06a6787e05 ("samples: Add an IPv6 "-6" option to the pktgen scripts") has omitted the addition of this option at "sample04" and "sample05". In order to support IPv6 option, this commit adds logic related to IPv6 option. Fixes: 0f06a6787e05 ("samples: Add an IPv6 "-6" option to the pktgen scripts") Signed-off-by: Juhee Kang Signed-off-by: David S. Miller

samples: pktgen: pass the environment variable of normal user to sudo

2021-08-16T10:02:09+00:00

All pktgen samples can use the environment variable instead of option parameters(eg. $DEV is able to use instead of '-i' option). This is results of running sample as root and user: // running as root # DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample01_simple.sh -v -n 1 Running... ctrl^C to stop // running as normal user $ DEV=eth0 DEST_IP=10.1.0.1 DST_MAC=00:11:22:33:44:55 ./pktgen_sample01_simple.sh -v -n 1 [...] ERROR: Please specify output device This results show the sample doesn't work properly when the sample runs as normal user. Because the sample is restarted by the function (root_check_run_with_sudo) to run with sudo. In this process, the environment variable of normal user doesn't propagate to sudo. It can be solved by using "-E"(--preserve-env) option of "sudo", which preserve normal user's existing environment variables. So this commit adds "-E" option in the function (root_check_run_with_sudo). Signed-off-by: Juhee Kang Signed-off-by: David S. Miller

samples: pktgen: add UDP tx checksum support

2021-05-28T21:52:13+00:00

Introduce k parameter in pktgen samples in order to toggle UDP tx checksum Signed-off-by: Lorenzo Bianconi Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/r/cf16417902062c6ea2fd3c79e00510e36a40c31a.1622210713.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski

samples: pktgen: new append mode

2021-03-14T21:22:38+00:00

To configure various complex flows we for sure can create custom pktgen init scripts, but sometimes thats not that easy. New "-a" (append) option in all the existing sample scripts allows to append more "devices" into pktgen threads. The most straightforward usecases for that are: - using multiple devices. We have to generate full linerate on all physical functions (ports) of our multiport device. - pushing multiple flows (with different packet options) Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller

samples: pktgen: allow to specify delay parameter via new opt

2021-03-14T21:22:37+00:00

DELAY may now be explicitly specified via common parameter -w Signed-off-by: Igor Russkikh Signed-off-by: David S. Miller

docs: networking: convert pktgen.txt to ReST

2020-04-30T19:56:37+00:00

- add SPDX header; - adjust title markup; - use bold markups on a few places; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: David S. Miller

samples: pktgen: allow to specify destination IP range (CIDR)

2019-10-07T13:26:32+00:00

Currently, kernel pktgen has the feature to specify destination address range for sending packet. (e.g. pgset "dst_min/dst_max") But on samples, each pktgen script doesn't have any option to achieve this. This commit adds the feature to specify the destination address range with CIDR. -d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed # ./pktgen_sample01_simple.sh -6 -d fe80::20/126 -p 3000 -n 4 # tcpdump ip6 and udp 05:14:18.082285 IP6 fe80::99.71 > fe80::23.3000: UDP, length 16 05:14:18.082564 IP6 fe80::99.43 > fe80::23.3000: UDP, length 16 05:14:18.083366 IP6 fe80::99.107 > fe80::22.3000: UDP, length 16 05:14:18.083585 IP6 fe80::99.97 > fe80::21.3000: UDP, length 16 Signed-off-by: Daniel T. Lee Acked-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller