[PATCH v2] arm64:pci: fix the IOV device access config space valid condition

Ley Foon Tan lftan at altera.com
Wed Aug 31 17:58:42 PDT 2016


On Mon, Aug 29, 2016 at 3:26 PM, Po Liu <po.liu at nxp.com> wrote:
> When echo a number to /sys/bus/pci/devices/xxx/sriov_numvfs to enable the
> VF devices. A crash log occurred. This found to be access the IOV devices
> config space failure issue.
>
> The read/write config space from host would judge the pcie device plugin
> or not by(Designware platform as example):
>
> if (bus->primary == pp->root_bus_nr && dev > 0)
>     return 0;
>
> Although all PCIe devices for dev(coming from the device and function
> number) is zero. But the dev is not zero for VF devices. So remove the
> condition.
>
> These PCI hosts were changed: designware, altera, xilinx.
>
> Signed-off-by: Po Liu <po.liu at nxp.com>
> ---

For pcie-altera.c:
Acked-by: Ley Foon Tan <lftan at altera.com>

Thanks.

Regards
Ley Foon



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