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Documentation: Bindings: add port-idx-in-ae for enet node
This patch adds description for port-idx-in-ae attribute.
Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Yisen.Zhuang\(Zhuangyuzeng\)
and committed by
David S. Miller
c132cdcc
2fc695a1
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-1
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Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
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Documentation/devicetree/bindings/net/hisilicon-hns-nic.txt
···
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| | | | | |
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external port
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This attribute is remained for compatible purpose. It is not recommended to
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use it in new code.
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- port-idx-in-ae: is the index of port provided by AE.
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In NIC mode of DSAF, all 6 PHYs of service DSAF are taken as ethernet ports
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to the CPU. The port-idx-in-ae can be 0 to 5. Here is the diagram:
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+-----+---------------+
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| CPU |
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+-+-+-+---+-+-+-+-+-+-+
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| | | | | | | |
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debug debug service
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port port port
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(0) (0) (0-5)
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In Switch mode of DSAF, all 6 PHYs of service DSAF are taken as physical
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ports connected to a LAN Switch while the CPU side assume itself have one
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single NIC connected to this switch. In this case, the port-idx-in-ae
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will be 0 only.
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+-----+-----+------+------+
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| CPU |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| | service| port(0)
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debug debug +------------+
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port port | switch |
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(0) (0) +-+-+-+-+-+-++
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| | | | | |
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external port
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- local-mac-address: mac addr of the ethernet interface
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Example:
···
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ethernet@0{
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compatible = "hisilicon,hns-nic-v1";
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ae-handle = <&dsaf0>;
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port-id = <0>;
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port-idx-in-ae = <0>;
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local-mac-address = [a2 14 e4 4b 56 76];
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};