Re: [PATCH v7 5/5] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-03-28 12:50:58
Also in:
linux-pci, lkml
On Sat, Mar 27, 2021 at 04:06:55AM +0100, Gustavo Pimentel wrote:
quoted hunk ↗ jump to hunk
This patch describes the sysfs interface implemented on the dw-xdata-pcie driver. Signed-off-by: Gustavo Pimentel <redacted> --- Documentation/ABI/testing/sysfs-driver-xdata | 46 ++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-xdatadiff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata new file mode 100644 index 00000000..cb3ab7e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xdata@@ -0,0 +1,46 @@ +What: /sys/class/misc/drivers/dw-xdata-pcie/write +Date: April 2021 +KernelVersion: 5.12 +Contact: Gustavo Pimentel <gustavo.pimentel@synopsys.com> +Description: Allows the user to enable the PCIe traffic generator which + will create write TLPs frames - from the Root Complex to the + Endpoint direction. + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie/write
That did not look like what the code was looking for at all :(
+ + The user can read the current PCIe link throughput generated + through this generator in MB/s. + Usage e.g. + cat /sys/class/misc/dw-xdata-pcie/write + 204 + + The file is read and write. + +What: /sys/class/misc/dw-xdata-pcie/read +Date: April 2021 +KernelVersion: 5.12 +Contact: Gustavo Pimentel [off-list ref] +Description: Allows the user to enable the PCIe traffic generator which + will create read TLPs frames - from the Endpoint to the Root + Complex direction. + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie/read
Again, did not match the code :(
+ + The user can read the current PCIe link throughput generated + through this generator in MB/s. + Usage e.g. + cat /sys/class/misc/dw-xdata-pcie/read + 199 + + The file is read and write. + +What: /sys/class/misc/dw-xdata-pcie/stop +Date: April 2021 +KernelVersion: 5.12 +Contact: Gustavo Pimentel [off-list ref] +Description: Allows the user to disable the PCIe traffic generator in all + directions. + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie/stop
Same here :( Who tested this?