Re: [PATCH v2 0/5] misc: Add Add Synopsys DesignWare xData IP driver

[Arnd Bergmann]

On Fri, Nov 13, 2020 at 11:37 PM Gustavo Pimentel
<Gustavo.Pimentel@xxxxxxxxxxxx> wrote:
>
> This patch series adds a new driver called xData-pcie for the Synopsys
> DesignWare PCIe prototype.
>
> The driver configures and enables the Synopsys DesignWare PCIe traffic
> generator IP inside of prototype Endpoint which will generate upstream
> and downstream PCIe traffic. This allows to quickly test the PCIe link
> throughput speed and check is the prototype solution has some limitation
> or not.

I don't quite understand what this hardware is, based on your description.
Is this a specific piece of hardware that only serves as a traffic generator,
or a particular hardware feature of the DesignWare endpoint, or is it
software running on a SoC in endpoint mode while plugged into a Linux
system running this driver on the host?

Most importantly; Is there any relation between this driver and the driver
we have for the DesignWare PCIe endpoint itself?

My feeling is that this should be located more closely to drivers/pci/,
but that depends on what it actually does.

     Arnd