[ovs-build] Passed: ovsrobot/ovs#3745 (series_237818 - d795c3d)

[Travis CI]

Build Update for ovsrobot/ovs
-------------------------------------

Build: #3745
Status: Passed

Duration: 12 mins and 4 secs
Commit: d795c3d (series_237818)
Author: Harry van Haaren
Message: dpif-netdev: Add command to switch dpif implementation.

This commit adds a new command to allow the user to switch
the active DPIF implementation at runtime. A probe function
is executed before switching the DPIF implementation, to ensure
the CPU is capable of running the ISA required. For example, the
below code will switch to the AVX512 enabled DPIF assuming
that the runtime CPU is capable of running AVX512 instructions:

 $ ovs-appctl dpif-netdev/dpif-set dpif_avx512

A new configuration flag is added to allow selection of the
default DPIF. This is useful for running the unit-tests against
the available DPIF implementations, without modifying each unit test.

The design of the testing & validation for ISA optimized DPIF
implementations is based around the work already upstream for DPCLS.
Note however that a DPCLS lookup has no state or side-effects, allowing
the auto-validator implementation to perform multiple lookups and
provide consistent statistic counters.

The DPIF component does have state, so running two implementations in
parallel and comparing output is not a valid testing method, as there
are changes in DPIF statistic counters (side effects). As a result, the
DPIF is tested directly against the unit-tests.

Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
Co-authored-by: Cian Ferriter <cian.ferriter at intel.com>
Signed-off-by: Cian Ferriter <cian.ferriter at intel.com>
Signed-off-by: 0-day Robot <robot at bytheb.org>

View the changeset: https://github.com/ovsrobot/ovs/compare/11d2e0caa9ef...d795c3d84927

View the full build log and details: https://travis-ci.com/github/ovsrobot/ovs/builds/222373287?utm_medium=notification&utm_source=email


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