Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
new file mode 100644
index 000000000..f0421ee3c
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+++ b/Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
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+Hisilicon Network Subsystem NIC controller
+
+Required properties:
+- compatible: "hisilicon,hns-nic-v1" or "hisilicon,hns-nic-v2".
+  "hisilicon,hns-nic-v1" is for hip05.
+  "hisilicon,hns-nic-v2" is for Hi1610 and Hi1612.
+- ae-handle: accelerator engine handle for hns,
+  specifies a reference to the associating hardware driver node.
+  see Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
+- port-id: is the index of port provided by DSAF (the accelerator). DSAF can
+  connect to 8 PHYs. Port 0 to 1 are both used for administration purpose. They
+  are called debug ports.
+
+  The remaining 6 PHYs are taken according to the mode of DSAF.
+
+  In NIC mode of DSAF, all 6 PHYs are taken as ethernet ports to the CPU. The
+  port-id can be 2 to 7. Here is the diagram:
+            +-----+---------------+
+            |            CPU      |
+            +-+-+-+---+-+-+-+-+-+-+
+              | |     | | | | | |
+             debug       service
+             port         port
+             (0,1)       (2-7)
+
+  In Switch mode of DSAF, all 6 PHYs are taken as physical ports connect to a
+  LAN Switch while the CPU side assume itself have one single NIC connect to
+  this switch. In this case, the port-id will be 2 only.
+            +-----+---------------+
+            |            CPU      |
+            +-+-+-+---+-+-+-+-+-+-+
+              | |   service| port(2)
+             debug   +------------+
+             port    |   switch   |
+             (0,1)   +-+-+-+-+-+-++
+                       | | | | | |
+                      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:
+
+	ethernet@0{
+		compatible = "hisilicon,hns-nic-v1";
+		ae-handle = <&dsaf0>;
+		port-idx-in-ae = <0>;
+		local-mac-address = [a2 14 e4 4b 56 76];
+	};