LayerscapeのトピックRe: Did support MSI/MSIX interrupts on LS2088ARDB?

Did support MSI/MSIX interrupts on LS2088ARDB?

Hans-Bings — Wed, 09 Jun 2021 08:03:13 GMT

I install irqbalance service on LS2088ARDB, and irqbalance service say below:

/usr/local/sbin/irqbalance[1755]: IRQ dpni.5(129) guessed as class 0
/usr/local/sbin/irqbalance[1755]: IRQ dpni.4(130) guessed as class 0
/usr/local/sbin/irqbalance[1755]: IRQ dpni.3(131) guessed as class 0
/usr/local/sbin/irqbalance[1755]: IRQ dpni.2(132) guessed as class 0
/usr/local/sbin/irqbalance[1755]: IRQ dpni.1(133) guessed as class 0
/usr/local/sbin/irqbalance[1755]: IRQ dpni.0(134) guessed as class 0
/usr/local/sbin/irqbalance[1755]: WARNING: MSI interrupts found in /proc/interrupts
/usr/local/sbin/irqbalance[1755]: But none found in sysfs, you need to update your kernel
usr/local/sbin/irqbalance[1755]: Until then, IRQs will be improperly classified
/usr/local/sbin/irqbalance[1755]: Daemon couldn't be bound to the file-based socket.

so did support MSI/MSIX interrupts on LS2088ARDB?

I use Linux kernel 5.10.9

Re: Did support MSI/MSIX interrupts on LS2088ARDB?

yipingwang — Thu, 10 Jun 2021 06:36:54 GMT

MSI/MSIX interrupts are supported on LS2088ARDB in Linux kernel 5.10.9.

Re: Did support MSI/MSIX interrupts on LS2088ARDB?

Hans-Bings — Thu, 10 Jun 2021 09:48:19 GMT

But why kernel say can't find any MSI device in sys fs?

Any help please?

Re: Did support MSI/MSIX interrupts on LS2088ARDB?

yipingwang — Thu, 24 Jun 2021 08:45:12 GMT

Please refer to the root cause provided in https://access.redhat.com/solutions/677073.