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

Thomas Monjalon thomas at monjalon.net
Tue Jan 26 17:48:54 CET 2021


26/01/2021 17:39, Ferruh Yigit:
> On 1/26/2021 4:22 PM, Thomas Monjalon wrote:
> > 26/01/2021 17:17, Rong, Leyi:
> >>>> On 1/20/2021 11:21 PM, Ferruh Yigit wrote:
> >>>>
> >>>> And for the mingw, I have same result with Ali, I can reproduce with (Fedora
> >>> MinGW 9.2.1-6.fc32).
> >>>>
> >>>> But different from the CI, I am getting the error [1] for all following files:
> >>>> rte_random.c
> >>>> i40e_rxtx_vec_sse.c
> >>>> i40e_rxtx_vec_avx512.c
> >>>> i40e_rxtx_vec_avx2.c
> >>>> rte_ethdev.c
> > [...]
> >> Send patch https://patchwork.dpdk.org/patch/87349/ to disable avx512 on windows as the workaround.
> >> Pallavi also tested with this patch, and passed the mingw and clang build. Will try to see if has better way to fix.
> > 
> > Ferruh mentioned errors with other files outside of i40e.
> > 
> 
> The patch globally disables the avx512 for windows cross build, not just for 
> i40e, so I confirm it fixes the build errors in my environment.
> 
> But disabling avx512 like this is not best option.

Some may argue that AVX512 is not the best option ;)




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