Based on kernel version 6.8
. Page generated on 2024-03-11 21:26 EST
.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | 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]; }; |