kernel/tools/testing/selftests/net/udpgso_bench_tx.c, branch linux-6.2.y

selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking

2023-02-02T12:29:51Z

The test tool can check that the zerocopy number of completions value is valid taking into consideration the number of datagram send calls. This can catch the system into a state where the datagrams are still in the system (for example in a qdisk, waiting for the network interface to return a completion notification, etc). This change adds a retry logic of computing the number of completions up to a configurable (via CLI) timeout (default: 2 seconds). Fixes: 79ebc3c26010 ("net/udpgso_bench_tx: options to exercise TX CMSG") Signed-off-by: Andrei Gherzan Cc: Willem de Bruijn Cc: Paolo Abeni Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20230201001612.515730-4-andrei.gherzan@canonical.com Signed-off-by: Paolo Abeni

selftests: net: udpgso_bench_rx/tx: Stop when wrong CLI args are provided

2023-02-02T12:29:51Z

Leaving unrecognized arguments buried in the output, can easily hide a CLI/script typo. Avoid this by exiting when wrong arguments are provided to the udpgso_bench test programs. Fixes: 3a687bef148d ("selftests: udp gso benchmark") Signed-off-by: Andrei Gherzan Cc: Willem de Bruijn Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20230201001612.515730-2-andrei.gherzan@canonical.com Signed-off-by: Paolo Abeni

selftests/net: udpgso_bench_tx: fix dst ip argument

2021-12-30T01:29:50Z

udpgso_bench_tx call setup_sockaddr() for dest address before parsing all arguments, if we specify "-p ${dst_port}" after "-D ${dst_ip}", then ${dst_port} will be ignored, and using default cfg_port 8000. This will cause test case "multiple GRO socks" failed in udpgro.sh. Setup sockaddr after parsing all arguments. Fixes: 3a687bef148d ("selftests: udp gso benchmark") Signed-off-by: Jianguo Wu Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/ff620d9f-5b52-06ab-5286-44b945453002@163.com Signed-off-by: Jakub Kicinski

selftests: net: Fix printf format warnings on arm

2019-11-07T21:54:08Z

Fix printf format warnings on arm (and other 32bit arch). - udpgso.c and udpgso_bench_tx use %lu for size_t but it should be unsigned long long on 32bit arch. - so_txtime.c uses %ld for int64_t, but it should be unsigned long long on 32bit arch. Signed-off-by: Masami Hiramatsu Cc: Willem de Bruijn Cc: David S. Miller Signed-off-by: Shuah Khan

selftests/net: make udpgso_bench skip unsupported testcases

2019-06-19T21:33:47Z

Kselftest can be run against older kernels. Instead of failing hard when a feature is unsupported, return the KSFT_SKIP exit code. Specifically, do not fail hard on missing udp zerocopy. The udp gso bench test runs multiple test cases from a single script. Fail if any case fails, else return skip if any test is skipped. Link: https://lore.kernel.org/lkml/20190618171516.GA17547@kroah.com/ Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

net/udpgso_bench_tx: options to exercise TX CMSG

2019-06-17T23:30:37Z

This enhancement adds options that facilitate load testing with additional TX CMSG options, and to optionally print results of various send CMSG operations. These options are especially useful in isolating situations where error-queue messages are lost when combined with other CMSG operations (e.g. SO_ZEROCOPY). New options: -a - count all CMSG messages and match to sent messages -T - add TX CMSG that requests TX software timestamps -H - similar to -T except request TX hardware timestamps -P - call poll() before reading error queue -v - print detailed results v2: Enhancements as per Willem de Bruijn - Updated control and buffer parameters for recvmsg - poll() parameter cleanup - fail on bad audit results - remove TOS options - improved reporting v3: Enhancements as per Willem de Bruijn - add SOF_TIMESTAMPING_OPT_TSONLY to eliminate MSG_TRUNC - general code cleanup Signed-off-by: Fred Klassen Signed-off-by: David S. Miller

selftests: add functionals test for UDP GRO

2018-11-08T00:23:05Z

Extends the existing udp programs to allow checking for proper GRO aggregation/GSO size, and run the tests via a shell script, using a veth pair with XDP program attached to trigger the GRO code path. rfc v3 -> v1: - use ip route to attach the xdp helper to the veth rfc v2 -> rfc v3: - add missing test program options documentation - fix sporatic test failures (receiver faster than sender) Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller

selftests: udp gso benchmark

2018-04-26T19:09:52Z

Send udp data between a source and sink, optionally with udp gso. The two processes are expected to be run on separate hosts. A script is included that runs them together over loopback in a single namespace for functionality testing. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller