[dpdk-dev] [PATCH v3 0/3] AVX512 vPMD on i40e

[Ferruh Yigit]

On 1/20/2021 8:36 AM, David Marchand wrote:
> On Wed, Jan 20, 2021 at 7:26 AM Tal Shnaiderman <talshn at nvidia.com> wrote:
>>> The patch "add AVX512 vector path" also caused a build failure when cross
>>> compiling on Linux using mingw, and it's still reproducing in next-net
>>> (517969c95).
>>>
>>> ```
>>> $ meson --werror --buildtype=debugoptimized --cross-file config/x86/cross-
>>> mingw -Dexamples=helloworld build  && ninja-build -C build -j32
>>>
>>> [221/232] Generating symbol file lib/librte_mbuf-21.dll.p/librte_mbuf-
>>> 21.dll.symbols
>>> [222/232] Generating symbol file lib/librte_hash-21.dll.p/librte_hash-
>>> 21.dll.symbols
>>> [223/232] Linking target lib/librte_net-21.dll [224/232] Compiling C object
>>> drivers/net/i40e/libi40e_avx512_lib.a.p/i40e_rxtx_vec_avx512.c.obj
>>> FAILED: drivers/net/i40e/libi40e_avx512_lib.a.p/i40e_rxtx_vec_avx512.c.obj
>>> ...
>>> drivers/net/i40e/libi40e_avx512_lib.a.p/i40e_rxtx_vec_avx512.c.obj.d -o
>>> drivers/net/i40e/libi40e_avx512_lib.a.p/i40e_rxtx_vec_avx512.c.obj -c
>>> ../../root/dpdk/drivers/net/i40e/i40e_rxtx_vec_avx512.c
>>> {standard input}: Assembler messages:
>>> {standard input}:112: Error: invalid register for .seh_savexmm {standard
>>> input}:114: Error: invalid register for .seh_savexmm ...
>>> ...
>>> {standard input}:25351: Error: invalid register for .seh_savexmm {standard
>>> input}:25352: Error: invalid register for .seh_savexmm [225/232] Generating
>>> symbol file lib/librte_net-21.dll.p/librte_net-21.dll.symbols
>>> ninja: build stopped: subcommand failed.
>>> ```
>>>
>>> OS: Fedora 32
>>> Meson: 0.55.3
>>> MinGW: Fedora MinGW 9.2.1-6.fc32
>>>
>>> - Ali
>>
>> Those errors were detected in the CI tests for this patch [1], we should pay more attention to those now that 2 PMDs are supported on Windows.
>>
>> [1]: https://lab.dpdk.org/results/dashboard/patchsets/15164/
> 
> I won't grmbl about how CI reports are not being looked at (or maybe I
> just did :)).
> 

Noted and agreed, I will be more careful next time for next-net.