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/openbmc/linux/tools/testing/selftests/net/ |
H A D | msg_zerocopy.sh | 07b65c5b31ce477c3ced6e3541fd2331338be214 Thu Aug 03 15:29:45 CDT 2017 Willem de Bruijn <willemb@google.com> test: add msg_zerocopy test
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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H A D | msg_zerocopy.c | 07b65c5b31ce477c3ced6e3541fd2331338be214 Thu Aug 03 15:29:45 CDT 2017 Willem de Bruijn <willemb@google.com> test: add msg_zerocopy test
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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H A D | .gitignore | diff 07b65c5b31ce477c3ced6e3541fd2331338be214 Thu Aug 03 15:29:45 CDT 2017 Willem de Bruijn <willemb@google.com> test: add msg_zerocopy test
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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H A D | Makefile | diff 07b65c5b31ce477c3ced6e3541fd2331338be214 Thu Aug 03 15:29:45 CDT 2017 Willem de Bruijn <willemb@google.com> test: add msg_zerocopy test
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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