15/01/2018 13:22, Jonas Pfefferle: > > On Sat, 13 Jan 2018 23:49:30 +0100 > Thomas Monjalon <tho...@monjalon.net> wrote: > > 13/01/2018 13:15, Burakov, Anatoly: > >> On 11-Jan-18 11:45 PM, Thomas Monjalon wrote: > >> > 07/11/2017 10:50, Jonas Pfefferle1: > >> >>> Is there something urgent for 17.11? > >> >>> Or can it be refined in 18.02? > >> >> > >> >> Nothing urgent. We can refine this for 18.02. > >> >> > >> >>> Anatoly, any thought? > >> > > >> > Anatoly, Jonas, how do you want to proceed with this patch? > >> > > >> > >> I don't see anything to be refined here, it's a simple bug fix - > >>code > >> assumes noiommu mode support is always available, when it might not > >>be > >> the case on older kernels. > > > > As a bug fix, the title must start with "fix" and a tag "Fixes:" > > must be added to help with backport. > > At the same time, the explanation of the bug must be added in > > the commit log please. > > > > Thanks > > It's not really a bug fix since it does not change the semantic of the > function but just adds nicer error handling. > Regarding redefining the code: What I don't like is the special cases > we have to check for when using the sPAPR iommu because it does not > support VA mappings yet. I think we should decide which iova mode to > use based on the iommu types available, i.e. each iommu type should > report which iova type it supports. Thoughts?
Have you looked at what Maxime did? https://dpdk.org/dev/patchwork/patch/33650/ How does it affect this patch?