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| author | William Tu <u9012063@gmail.com> | 2020-03-24 15:10:50 -0700 |
|---|---|---|
| committer | William Tu <u9012063@gmail.com> | 2020-05-14 07:21:34 -0700 |
| commit | 29bb3093eb8b387ada862ea502626a4cfbaa3358 (patch) | |
| tree | 3d4ea7d5e7ace8f9a31e4ac4f27d21f79bfc722e /tests/system-tso-macros.at | |
| parent | c101cd4171cfe04e214f858b4bbe089e56f13f9b (diff) | |
| download | openvswitch-29bb3093eb8b387ada862ea502626a4cfbaa3358.tar.gz | |
userspace: Enable TSO support for non-DPDK.
This patch enables TSO support for non-DPDK use cases, and
also add check-system-tso testsuite. Before TSO, we have to
disable checksum offload, allowing the kernel to calculate the
TCP/UDP packet checsum. With TSO, we can skip the checksum
validation by enabling checksum offload, and with large packet
size, we see better performance.
Consider container to container use cases:
iperf3 -c (ns0) -> veth peer -> OVS -> veth peer -> iperf3 -s (ns1)
And I got around 6Gbps, similar to TSO with DPDK-enabled.
Acked-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Ilya Maximets <i.maximets@ovn.org>
Signed-off-by: William Tu <u9012063@gmail.com>
Diffstat (limited to 'tests/system-tso-macros.at')
| -rw-r--r-- | tests/system-tso-macros.at | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/system-tso-macros.at b/tests/system-tso-macros.at new file mode 100644 index 000000000..406334f3e --- /dev/null +++ b/tests/system-tso-macros.at @@ -0,0 +1,31 @@ +# _ADD_BR([name]) +# +# Expands into the proper ovs-vsctl commands to create a bridge with the +# appropriate type and properties +m4_define([_ADD_BR], [[add-br $1 -- set Bridge $1 datapath_type="netdev" protocols=OpenFlow10,OpenFlow11,OpenFlow12,OpenFlow13,OpenFlow14,OpenFlow15 fail-mode=secure ]]) + +# OVS_TRAFFIC_VSWITCHD_START([vsctl-args], [vsctl-output], [=override]) +# +# Creates a database and starts ovsdb-server, starts ovs-vswitchd +# connected to that database, calls ovs-vsctl to create a bridge named +# br0 with predictable settings, passing 'vsctl-args' as additional +# commands to ovs-vsctl. If 'vsctl-args' causes ovs-vsctl to provide +# output (e.g. because it includes "create" commands) then 'vsctl-output' +# specifies the expected output after filtering through uuidfilt. +m4_define([OVS_TRAFFIC_VSWITCHD_START], + [ + OVS_WAIT_WHILE([ip link show ovs-netdev]) + _OVS_VSWITCHD_START([--disable-system]) + dnl Add bridges, ports, etc. + OVS_WAIT_WHILE([ip link show br0]) + AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:userspace-tso-enable=true]) + AT_CHECK([ovs-vsctl -- _ADD_BR([br0]) -- $1 m4_if([$2], [], [], [| uuidfilt])], [0], [$2]) +]) + +# CONFIGURE_VETH_OFFLOADS([VETH]) +# +# Enable TCP segmentation offload and scatter-gather for veths. +m4_define([CONFIGURE_VETH_OFFLOADS], + [AT_CHECK([ethtool -K $1 sg on], [0], [ignore], [ignore])] + [AT_CHECK([ethtool -K $1 tso on], [0], [ignore], [ignore])] +) |