[dpdk-ci] Compiling dpdk in non compilation tests

[David Marchand <david.marchand@redhat.com>]

Looking at CI reports this morning, I noticed this on the series "ice:
update base code".

https://lab.dpdk.org/results/dashboard/patchsets/13992/

- Compilation is failing on OpenSuse, but I think this is because its
toolchain does not have AVX512 support.
This seems to be a regression introduced by the series, indeed, cool.


- On Ubuntu 18.04, build is fine, but unit tests are ko.
Looking into the unit tests zipped logs, I can see that:
* the unit tests job builds its own binaries,
* the unit tests environment is not the same as the build test
environment (only copying significant differences below):

Build:
The Meson build system
Version: 0.55.3
...
C compiler for the host machine: cc (gcc 7.5.0 "cc (Ubuntu
7.5.0-3ubuntu1~18.04) 7.5.0")
C linker for the host machine: cc ld.bfd 2.30
...
Run-time dependency libpcap found: YES 1.8.1
Has header "pcap.h" with dependency libpcap: YES
...
Fetching value of define "__AVX2__" : 1
Fetching value of define "__AVX512BW__" : 1
Fetching value of define "__AVX512CD__" : 1
Fetching value of define "__AVX512DQ__" : 1
Fetching value of define "__AVX512F__" : 1
Fetching value of define "__AVX512VL__" : 1
...
Run-time dependency jansson found: YES 2.11
...

vs

Unit tests:
The Meson build system
Version: 0.53.1
...
C compiler for the host machine: cc (gcc 7.5.0 "cc (Ubuntu
7.5.0-3ubuntu1~18.04) 7.5.0")
C linker for the host machine: cc GNU ld.bfd 2.30
...
Run-time dependency libpcap found: NO (tried pkgconfig)
Library pcap found: NO
...
Fetching value of define "__AVX2__" :
Fetching value of define "__AVX512BW__" :
Fetching value of define "__AVX512CD__" :
Fetching value of define "__AVX512DQ__" :
Fetching value of define "__AVX512F__" :
Fetching value of define "__AVX512VL__" :
...
Run-time dependency jansson found: NO (tried pkgconfig and cmake)
...


The Unit tests env does not have a AVX512 enabled toolchain, or
something in meson disables it, hence the compilation fails and the
unit tests are marked as failed while it has nothing to do with
functional tests.


Please rework the CI pipeline so that the Unit tests job only does
functional tests, while binaries are built by the Build test job.


Thanks.

-- 
David Marchand