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..a7bb44b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xdata @@ -0,0 +1,46 @@ +What: /sys/kernel/dw-xdata-pcie/write +Date: February 2021 +KernelVersion: 5.12 +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/kernel/dw-xdata-pcie/write + + The user can read the current PCIe link throughput generated + through this generator. + Usage e.g. + cat /sys/kernel/dw-xdata-pcie/write + 204 MB/s + + The file is read and write. + +What: /sys/kernel/dw-xdata-pcie/read +Date: February 2021 +KernelVersion: 5.12 +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/kernel/dw-xdata-pcie/read + + The user can read the current PCIe link throughput generated + through this generator. + Usage e.g. + cat /sys/kernel/dw-xdata-pcie/read + 199 MB/s + + The file is read and write. + +What: /sys/kernel/dw-xdata-pcie/stop +Date: February 2021 +KernelVersion: 5.12 +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/kernel/dw-xdata-pcie/stop + + The file is write only. -- 2.7.4
