Merge tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh...

[karo-tx-linux.git] / Documentation / devicetree / bindings / net / hisilicon-hns-nic.txt

diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
index e911a635ce6e48c7db7f0f09457ca6e90e63b80d..f0421ee3c7149fe08419eda6e4657a25872771d2 100644 (file)
--- a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
+++ b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
@@ -36,6 +36,34 @@ Required properties:
                        | | | | | |
                       external port
 
+  This attribute is remained for compatible purpose. It is not recommended to
+  use it in new code.
+
+- port-idx-in-ae: is the index of port provided by AE.
+  In NIC mode of DSAF, all 6 PHYs of service DSAF are taken as ethernet ports
+  to the CPU. The port-idx-in-ae can be 0 to 5. Here is the diagram:
+            +-----+---------------+
+            |            CPU      |
+            +-+-+-+---+-+-+-+-+-+-+
+              |    |   | | | | | |
+           debug debug   service
+           port  port     port
+           (0)   (0)     (0-5)
+
+  In Switch mode of DSAF, all 6 PHYs of service DSAF are taken as physical
+  ports connected to a LAN Switch while the CPU side assume itself have one
+  single NIC connected to this switch. In this case, the port-idx-in-ae
+  will be 0 only.
+            +-----+-----+------+------+
+            |                CPU      |
+            +-+-+-+-+-+-+-+-+-+-+-+-+-+
+              |    |     service| port(0)
+            debug debug  +------------+
+            port  port   |   switch   |
+            (0)   (0)    +-+-+-+-+-+-++
+                          | | | | | |
+                         external port
+
 - local-mac-address: mac addr of the ethernet interface
 
 Example:
@@ -43,6 +71,6 @@ Example:
        ethernet@0{
                compatible = "hisilicon,hns-nic-v1";
                ae-handle = <&dsaf0>;
-               port-id = <0>;
+               port-idx-in-ae = <0>;
                local-mac-address = [a2 14 e4 4b 56 76];
        };