[dpdk-dev] [PATCH v6 1/2] bus/pci: use PCI standard sysfs entry to get PIO address

[David Marchand]

On Fri, Jan 29, 2021 at 4:19 AM 谢华伟(此时此刻） <huawei.xhw at alibaba-inc.com> wrote:
>
> From: "huawei.xhw" <huawei.xhw at alibaba-inc.com>
>
> Currently virtio PMD asssumes legacy device uses PIO bar.
> There are three ways to get PIO(PortIO) address for virtio legacy device.
>     under igb_uio, get pio address from uio/uio# sysfs attribute
>     under uio_pci_generic:
>         for X86, get PIO address from /proc/ioport
>         for other ARCH, get PIO address from standard PCI sysfs attribute
>
> Actually, igb_uio sysfs attribute exports exactly the same thing as standard PCI sysfs, i.e,
>     pci_dev->resource[]
>
> This patch fixes these messy things, and uses standard PCI sysfs attribute.

I can not find what is being fixed.
Could you elaborate?


-- 
David Marchand