This patch describes the sysfs interface implemented on the dw-xdata-pcie
driver.

Signed-off-by: Gustavo Pimentel <gustavo.pimen...@synopsys.com>
---
 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.pimen...@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.<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.pimen...@synopsys.com>
+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.pimen...@synopsys.com>
+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

Reply via email to