Documentation: ABI: sysfs-class-net-qmi: document pass-through file

Add documentation for /sys/class/net/<iface>/qmi/pass_through

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/ABI/testing/sysfs-class-net-qmi b/Documentation/ABI/testing/sysfs-class-net-qmi
index ed79f58..47e6b97 100644 (file)
--- a/Documentation/ABI/testing/sysfs-class-net-qmi
+++ b/Documentation/ABI/testing/sysfs-class-net-qmi
@@ -58,3 +58,19 @@ Description:
 
                Indicates the mux id associated to the qmimux network interface
                during its creation.
+
+What:          /sys/class/net/<iface>/qmi/pass_through
+Date:          January 2021
+KernelVersion: 5.12
+Contact:       Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
+Description:
+               Boolean.  Default: 'N'
+
+               Set this to 'Y' to enable 'pass-through' mode, allowing packets
+               in MAP format to be passed on to the stack.
+
+               Normally the rmnet driver (CONFIG_RMNET) is then used to process
+               and demultiplex these packets.
+
+               'Pass-through' mode can be enabled when the device is in
+               'raw-ip' mode only.