07b65c5b31
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 <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| .gitignore | ||
| config | ||
| Makefile | ||
| msg_zerocopy.c | ||
| msg_zerocopy.sh | ||
| netdevice.sh | ||
| psock_fanout.c | ||
| psock_lib.h | ||
| psock_tpacket.c | ||
| reuseport_bpf_cpu.c | ||
| reuseport_bpf_numa.c | ||
| reuseport_bpf.c | ||
| reuseport_dualstack.c | ||
| run_afpackettests | ||
| run_netsocktests | ||
| socket.c | ||
| test_bpf.sh | ||