[dpdk-stable] " app/testpmd: fix NVGRE encap configuration" incompatible with 19.11.x

[Jiawei(Jonny) Wang]

Hello Christian,

I applied this patch on the 19.11.9-rc1, but not found this issue during compilation.

Could you send me your code branch then I can try on my side?

Code base:
commit 15d8f64d18a891a70d664d18eb918eee0705993e
Author: Christian Ehrhardt <christian.ehrhardt at canonical.com>
Date:   Wed Jun 2 16:33:26 2021 +0200

    version: 19.11.9-rc1

    Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>


#make O=x86_64-default-linux-gcc T=x86_64-native-linux-gcc config
#sed -ri 's,(RTE_MACHINE=).*,\1default,' x86_64-default-linux-gcc/.config
#sed -ri 's,(RTE_APP_TEST=).*,\1n,' x86_64-default-linux-gcc/.config
#sed -ri 's,(RTE_BUILD_SHARED_LIB=).*,\1y,' x86_64-default-linux-gcc/.config
#sed -ri 's,(RTE_NEXT_ABI=).*,\1n,' x86_64-default-linux-gcc/.config
#sed -ri 's,(LIBRTE_VHOST=).*,\1y,' x86_64-default-linux-gcc/.config
#sed -ri 's,(LIBRTE_VHOST=).*,\1y,' x86_64-default-linux-gcc/.config
#sed -ri 's,(RTE_KNI_KMOD=).*,\1y,' x86_64-default-linux-gcc/.config
#sed -ri 's,(RTE_EAL_IGB_UIO=).*,\1y,' x86_64-default-linux-gcc/.config
#
#make O=x86_64-default-linux-gcc -j3 EXTRA_CFLAGS=-Werror

......

  INSTALL-APP dpdk-test-crypto-perf
  INSTALL-MAP dpdk-test-crypto-perf.map
  CC test_perf_queue.o
  CC test_perf_atq.o
  CC test_pipeline_common.o
  CC test_pipeline_queue.o
  CC test_pipeline_atq.o
  LD dpdk-test-eventdev
  INSTALL-APP dpdk-test-eventdev
  INSTALL-MAP dpdk-test-eventdev.map
Build complete [x86_64-default-linuxapp-gcc]

Thanks.
B.R.

Jonny


> -----Original Message-----
> From: Christian Ehrhardt <christian.ehrhardt at canonical.com>
> Sent: Wednesday, June 2, 2021 9:25 PM
> To: Jiawei(Jonny) Wang <jiaweiw at nvidia.com>
> Cc: dpdk stable <stable at dpdk.org>; Ori Kam <orika at nvidia.com>
> Subject: " app/testpmd: fix NVGRE encap configuration" incompatible with
> 19.11.x
> 
> Hi,
> this change was targeted for the stable releases
> 
> commit 9b0da816bdec98c0d6c5d17ccdd337bdbafc3f75
> Author: Jiawei Wang <jiaweiw at nvidia.com>
> Date:   Tue Mar 16 06:18:27 2021 +0200
> 
>     app/testpmd: fix NVGRE encap configuration
> 
> But when applied it causes:
> 
> [  263s] /home/abuild/rpmbuild/BUILD/dpdk-
> 1622611368.078834f40/app/test-pmd/cmdline_flow.c:
> In function 'parse_vc_action_nvgre_encap':
> [  263s] /home/abuild/rpmbuild/BUILD/dpdk-
> 1622611368.078834f40/app/test-pmd/cmdline_flow.c:4254:3:
> error: missing initializer for field 'protocol' of 'struct rte_flow_item_nvgre' [-
> Werror=missing-field-initializers]
> [  263s]    .item_nvgre.protocol = RTE_BE16(RTE_ETHER_TYPE_TEB),
> [  263s]    ^
> [  263s] In file included from
> /home/abuild/rpmbuild/BUILD/dpdk-1622611368.078834f40/x86_64-
> default-linux-gcc/include/rte_eth_ctrl.h:11:0,
> [  263s]                  from
> /home/abuild/rpmbuild/BUILD/dpdk-1622611368.078834f40/x86_64-
> default-linux-gcc/include/rte_ethdev.h:978,
> [  263s]                  from
> /home/abuild/rpmbuild/BUILD/dpdk-1622611368.078834f40/app/test-
> pmd/cmdline_flow.c:18:
> [  263s] /home/abuild/rpmbuild/BUILD/dpdk-
> 1622611368.078834f40/x86_64-default-linux-gcc/include/rte_flow.h:917:13:
> note: 'protocol' declared here
> [  263s]   rte_be16_t protocol; /**< Protocol type (0x6558). */
> [  263s]              ^
> 
> This is failing not everywhere but in:
> - SLE_12_SP4/x86_64
> - RHEL_7/x86_64
> - openSUSE_Leap_42.3/x86_64
> 
> The type and the init code looks the same here and in the recent main branch.
> Neither do I see recent changes that would cause this.
> And the init just looks right to me, so I'm sure I'm overlooking something.
> 
> So I wondered (if you consider this patch important for 19.11.x) if you could
> have a look and consider backporting it so that it works well (or as an
> alternative let me know that it won't be needed for 19.11.x)
> 
> References/Logs:
> 19.11.8 working: https://paste.ubuntu.com/p/vvm4qCcmJT/
> 19.11.9 fail RH7: https://paste.ubuntu.com/p/2wph5nfbCg/
> 19.11.9 fail SLE12SP4: https://paste.ubuntu.com/p/nGHhkPJbR3/
> 19.11.9 fail openSuse42.3: https://paste.ubuntu.com/p/43mMx3sY2n/
> 19.11.9 witzh the patch dropped works:
> https://paste.ubuntu.com/p/JGZ44BhkC6/
> 
> 
> --
> Christian Ehrhardt
> Staff Engineer, Ubuntu Server
> Canonical Ltd