2018-11-01 21:31:28

by Sven Van Asbroeck

Subject: No interrupt was generated using MSI

I am seeing this in my kernel log:

[ 10.235625] tg3 0000:03:00.0 eth20: No interrupt was generated using MSI.
Switching to INTx mode. Please report this failure to the PCI
maintainer and include system chipset information

I looked through MAINTAINERS, but I can't find the PCI maintainer.
Can anyone help?

Chipset info: this happens on a Freescale i.MX6Q. Mainline 4.19 kernel.
The devicetree entry for the pcie chipset is here:

arch/arm/boot/dts/imx6qdl.dtsi:

pcie: pcie@1ffc000 {
compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
<snip>
};

2018-11-01 21:36:14

by Trent Piepho

Subject: Re: No interrupt was generated using MSI

On Thu, 2018-11-01 at 17:30 -0400, [email protected] wrote:
> I am seeing this in my kernel log:
>
> [ 10.235625] tg3 0000:03:00.0 eth20: No interrupt was generated
> using MSI.
> Switching to INTx mode. Please report this failure to the PCI
> maintainer and include system chipset information
>
> I looked through MAINTAINERS, but I can't find the PCI maintainer.
> Can anyone help?
>
> Chipset info: this happens on a Freescale i.MX6Q. Mainline 4.19
> kernel.
> The devicetree entry for the pcie chipset is here:
>
> arch/arm/boot/dts/imx6qdl.dtsi:
>
> pcie: pcie@1ffc000 {
> compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
> <snip>
> };

It sounds like you might be hitting the bug I posted a fix for
recently.

https://patchwork.kernel.org/patch/10657987/