[dpdk-dev] [PATCH v2 0/3] Improve automatic selection of IOVA mode

[Thomas Monjalon]

No review at all? I can merge then?

27/06/2019 19:05, Thomas Monjalon:
> Help in review would be much appreciated here, thanks.
> 
> 14/06/2019 11:39, David Marchand:
> > In SPDK, not all drivers are registered with DPDK at start up time.
> > Previously, that meant DPDK always chose to set itself up in IOVA_PA
> > mode. Instead, when the correct iova choice is unclear based on the
> > devices and drivers known to DPDK at start up time, use other heuristics
> > (such as whether /proc/self/pagemap is accessible) to make a better
> > choice.
> > 
> > This enables SPDK to run as an unprivileged user again without requiring
> > users to explicitly set the iova mode on the command line.
> > 
> > 
> > Changelog since v1:
> > - I took over the series following experiments and discussions with Ben
> >   and others, squashed Ben patches as two patches focusing on the main
> >   issues,
> > - introduced a fix on KNI,
> > - on the EAL bits,
> > 
> >   - added log on which IOVA mode has been selected,
> >   - updated BSD EAL,
> >   - in Linux EAL, moved KNI special case after IOVA selection,
> >   - in Linux EAL, added check on forced mode wrt physical addresses
> >     availability,
> > 
> > - on the PCI bus driver bits,
> > 
> >   - enforced the checks in the common code of the PCI bus,
> >   - added debug logs to track why a iova mode has been chosen per device,
> >   - added BSD part,
> >   - in Linux part, checked that VFIO is enabled,
> >   - in Linux part, defaulted to DC if a driver supports both PA and VA,
> 
> 
> 
>