kernel/linux.git/tools/testing/selftests/net/msg_zerocopy.sh, branch v6.6.131

selftests: extend zerocopy tests to udp

2018-12-03T23:58:32+00:00

Both msg_zerocopy and udpgso_bench have udp zerocopy variants. Exercise these as part of the standard kselftest run. With udp, msg_zerocopy has no control channel. Ensure that the receiver exits after the sender by accounting for the initial delay in starting them (in msg_zerocopy.sh). Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

selftests/net: enable msg_zerocopy test

2018-06-04T13:49:39+00:00

The existing msg_zerocopy test takes additional protocol arguments. Add a variant that takes no arguments and runs all supported variants. Call this from kselftest. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

test: add msg_zerocopy test

2017-08-04T04:37:30+00:00

Introduce regression test for msg_zerocopy feature. Send traffic from one process to another with and without zerocopy. Evaluate tcp, udp, raw and packet sockets, including variants - udp: corking and corking with mixed copy/zerocopy calls - raw: with and without hdrincl - packet: at both raw and dgram level Test on both ipv4 and ipv6, optionally with ethtool changes to disable scatter-gather, tx checksum or tso offload. All of these can affect zerocopy behavior. The regression test can be run on a single machine if over a veth pair. Then skb_orphan_frags_rx must be modified to be identical to skb_orphan_frags to allow forwarding zerocopy locally. The msg_zerocopy.sh script will setup the veth pair in network namespaces and run all tests. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller