[PATCH] eal/interrupts: Allow UIO interrupts when using igb_uio

[Stephen Hemminger]

On Tue, 4 Jul 2023 12:45:54 +0200
Vladimir Ratnikov <vratnikov at netgate.com> wrote:

> Sorry for a long reply, sure.
> 
> Stephen,
> am I right that the most concern is about a place where interrupt
> capabilities check appears for non MSI-X support?
> What if having dedicated rte_intr_cap_single analog when there's no support
> for MSI-X and just do the same(check capability, allocate interrupt vector
> etc) ?
> 
> 
> Regards,
> -Vladimir

With single interrupt, only link state interrupt is possible.
Does that work with igb_uio?  It should, if not then yes rte_intr_cap_single
or something like that is needed.