1Hisilicon RoCE DT description
  2
  3Hisilicon RoCE engine is a part of network subsystem.
  4It works depending on other part of network subsystem, such as gmac and
  5dsa fabric.
  6
  7Additional properties are described here:
  8
  9Required properties:
 10- compatible: Should contain "hisilicon,hns-roce-v1".
 11- reg: Physical base address of the RoCE driver and
 12length of memory mapped region.
 13- eth-handle: phandle, specifies a reference to a node
 14representing a ethernet device.
 15- dsaf-handle: phandle, specifies a reference to a node
 16representing a dsaf device.
 17- node_guid: a number that uniquely identifies a device or component
 18- #address-cells: must be 2
 19- #size-cells: must be 2
 20Optional properties:
 21- dma-coherent: Present if DMA operations are coherent.
 22- interrupts: should contain 32 completion event irq,1 async event irq
 23and 1 event overflow irq.
 24- interrupt-names:should be one of 34 irqs for roce device
 25  - hns-roce-comp-0 ~ hns-roce-comp-31: 32 complete event irq
 26  - hns-roce-async: 1 async event irq
 27  - hns-roce-common: named common exception warning irq
 28Example:
 29	infiniband@c4000000 {
 30			compatible = "hisilicon,hns-roce-v1";
 31			reg = <0x0 0xc4000000 0x0 0x100000>;
 32			dma-coherent;
 33			eth-handle = <&eth2 &eth3 &eth4 &eth5 &eth6 &eth7>;
 34			dsaf-handle = <&soc0_dsa>;
 35			node-guid = [00 9A CD 00 00 01 02 03];
 36			#address-cells = <2>;
 37			#size-cells = <2>;
 38			interrupt-parent = <&mbigen_dsa>;
 39			interrupts = <722 1>,
 40					<723 1>,
 41					<724 1>,
 42					<725 1>,
 43					<726 1>,
 44					<727 1>,
 45					<728 1>,
 46					<729 1>,
 47					<730 1>,
 48					<731 1>,
 49					<732 1>,
 50					<733 1>,
 51					<734 1>,
 52					<735 1>,
 53					<736 1>,
 54					<737 1>,
 55					<738 1>,
 56					<739 1>,
 57					<740 1>,
 58					<741 1>,
 59					<742 1>,
 60					<743 1>,
 61					<744 1>,
 62					<745 1>,
 63					<746 1>,
 64					<747 1>,
 65					<748 1>,
 66					<749 1>,
 67					<750 1>,
 68					<751 1>,
 69					<752 1>,
 70					<753 1>,
 71					<785 1>,
 72					<754 4>;
 73
 74			interrupt-names = "hns-roce-comp-0",
 75					"hns-roce-comp-1",
 76					"hns-roce-comp-2",
 77					"hns-roce-comp-3",
 78					"hns-roce-comp-4",
 79					"hns-roce-comp-5",
 80					"hns-roce-comp-6",
 81					"hns-roce-comp-7",
 82					"hns-roce-comp-8",
 83					"hns-roce-comp-9",
 84					"hns-roce-comp-10",
 85					"hns-roce-comp-11",
 86					"hns-roce-comp-12",
 87					"hns-roce-comp-13",
 88					"hns-roce-comp-14",
 89					"hns-roce-comp-15",
 90					"hns-roce-comp-16",
 91					"hns-roce-comp-17",
 92					"hns-roce-comp-18",
 93					"hns-roce-comp-19",
 94					"hns-roce-comp-20",
 95					"hns-roce-comp-21",
 96					"hns-roce-comp-22",
 97					"hns-roce-comp-23",
 98					"hns-roce-comp-24",
 99					"hns-roce-comp-25",
100					"hns-roce-comp-26",
101					"hns-roce-comp-27",
102					"hns-roce-comp-28",
103					"hns-roce-comp-29",
104					"hns-roce-comp-30",
105					"hns-roce-comp-31",
106					"hns-roce-async",
107					"hns-roce-common";
108		};