On systems with I225 interfaces it works in interrupt mode(rx), so not only LSE interrupts are supported.
I could try add
rte_intr_cap_single functionality and recheck it twice(if several interfaces works in rx_mode=interrupt)
But actually it worked with changes above(CPU utilization close to the zero, data passes through the interface etc)
On Tue, 4 Jul 2023 12:45:54 +0200
Vladimir Ratnikov <vratnikov@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.