[dpdk-dev] [PATCH dpdk 4/5] vfio: Do try setting IOMMU type if already set

[Burakov, Anatoly]

Hi Alejandro,

> I was counting on first submitted patch being accepted. 

OK, that's on me then.

> There is another thing to solve which is to unplug ports when there are more than one (already plugged) in an IOMMU group. I have a patch for this but I can not test it for that scenario, just for the "normal" one with one port/device per IOMMU group. > I'm working on having a way for testing the first case.

Have you tried older kernel versions yet? Those seem to work for me.

> The only problem is after that, none else device hotplug can happen. I know that is not a good thing because it requires to restart the app, but better than breaking the app with a crash.

Presumably, you're only talking about VFIO hotplug, and not hotplug in general? Is there anything that can be done to fix this issue in the long run? 
 
Thanks,
Anatoly