[dpdk-dev] [PATCH v2 10/16] Added support for selecting VFIO interrupt type from EAL command-line

Burakov, Anatoly anatoly.burakov at intel.com
Tue May 20 13:26:34 CEST 2014


Hi Stephen,

> I am not sure that MSI-X has any advantage with only one IRQ, so MSI would
> do.

Igb_uio doesn't support MSI, so I never included MSI support. It can be added though, but I don't see much point.

> Then have the code look at the PCI capability of device and fallback to INTX if
> needed. It should also check if INTX works, see kernel for details, since some
> PCI emulation like VMware is broken.

I believe VFIO itself does that already when it sets up interrupts.

Best regards,
Anatoly Burakov
DPDK SW Engineer





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