This patch describes the sysfs interface implemented on the dw-xdata-pcie driver. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx> --- Documentation/ABI/testing/sysfs-driver-xdata | 46 ++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-xdata diff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata new file mode 100644 index 00000000..66af19a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xdata @@ -0,0 +1,46 @@ +What: /sys/class/misc/drivers/dw-xdata-pcie.<device>/write +Date: April 2021 +KernelVersion: 5.13 +Contact: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx> +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.<device>/write + + 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.<device>/write + 204 + + The file is read and write. + +What: /sys/class/misc/dw-xdata-pcie.<device>/read +Date: April 2021 +KernelVersion: 5.13 +Contact: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx> +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.<device>/read + + 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.<device>/read + 199 + + The file is read and write. + +What: /sys/class/misc/dw-xdata-pcie.<device>/stop +Date: April 2021 +KernelVersion: 5.13 +Contact: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx> +Description: Allows the user to disable the PCIe traffic generator in all + directions. + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/stop + + The file is write only. -- 2.7.4
