[dpdk-dev] [PATCH] eal: forcing IOVA as PA in ppc

David Marchand david.marchand at redhat.com
Thu Aug 1 07:04:41 CEST 2019


On Wed, Jul 31, 2019 at 11:20 PM David Christensen
<drc at linux.vnet.ibm.com> wrote:
>
> >> Here's the output from my Power 9 system running 19.08-RC2 (I'm not
> >> using VFIO since I have an MLX5 adapter).
> >>
> >> sudo -E LD_LIBRARY_PATH=/home/davec/src/dpdk/build/lib
> >> /home/davec/src/dpdk/build/app/testpmd --log-level lib.\*:debug -w
> >> 0000:01:00.0 -w 0000:01:00.1 -l 4,8-79 -n 4  -- --rxq=32 --rxd=1024
> >> --txq=32 --txd=4096 --nb-cores=64 -i -a --numa --forward-mode=rxonly
> >> EAL: Detected lcore 0 as core 0 on socket 0
> >> <snip> ...
> >> EAL: Detected lcore 159 as core 2140 on socket 8
> >> EAL: Support maximum 1536 logical core(s) by configuration.
> >> EAL: Detected 160 lcore(s)
> >> EAL: Detected 2 NUMA nodes
> >> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> >> EAL: Module /sys/module/vfio_pci not found! error 2 (No such file or
> >> directory)
> >> EAL: VFIO PCI modules not loaded
> >> EAL: DPAA Bus not present. Skipping.
> >> EAL: Bus pci wants IOVA as 'DC'
> >
> > Ok, I think I understand now.
> >
> > Can you try this hunk ?
> >
>
> IOVA mode is now reported as PA.

Ok thanks.
Still trying to understand Takeshi Yoshimura issue which looks different.


> MLX5 PMD fails to load correctly, but that also occurs without the patch
> and when the EAL command-line option "--iova-mode=pa" is used.  This
> worked previously in RC1 and may be a separate issue.

Saw your patch on mlx5, yes separate issue.


-- 
David Marchand


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