当前配置PCIe Switch，如下图所示。根据之前在论坛上的讨论将上下和下行分别独立配置。但是下载发现还是有问题。这种情况下需要如何配置PCie Switch。目前发现我们没办法直接确认Device等信息
graph TD
%% 定义样式
classDef redBox fill:#fff,stroke:#f00,stroke-dasharray: 5 5,stroke-width:2px;
%% 顶层节点
UBC8[UBC]
%% 中间层 Switch
SW1[Pcie SW]
SW2[Pcie SW]
%% 底层节点 (在虚线框内)
subgraph Downstream_Ports
direction TB
P1[Pcie x4]
P3[Pcie x4]
end
%% 连接关系
UBC8 -->|x4| SW1
UBC8 -->|x4| SW2
SW1 -->|x4*3| P1
SW2 -->|x4*3| P3
%% 应用样式
class Downstream_Ports redBox;
这个是PCIe Switch框架图。当前根据这个框架配置的BusinessConnector如下：
"BusinessConnector_8": {
"Name": "Up_8",
"Direction": "Upstream",
"Slot": 8,
"LinkWidth": "X8",
"MaxLinkRate": "PCIe 4.0",
"ConnectorType": "UBC",
"Ports": [
{
"Name": "PortH1",
"ID": 24,
"Offset": 0,
"Width": 4
},
{
"Name": "PortH2",
"ID": 24,
"Offset": 4,
"Width": 4
}
]
},
"BusinessConnector_25": {
"Name": "Down_SW_1_1",
"Direction": "Downstream",
"Slot": 15,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 15,
"Offset": 0,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_15",
"RefPCIeAddrInfo": "#/PcieAddrInfo_15"
},
"BusinessConnector_26": {
"Name": "Down_SW_1_2",
"Direction": "Downstream",
"Slot": 16,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 16,
"Offset": 0,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_16",
"RefPCIeAddrInfo": "#/PcieAddrInfo_16"
},
"BusinessConnector_27": {
"Name": "Down_SW_1_3",
"Direction": "Downstream",
"Slot": 17,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 17,
"Offset": 0,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_17",
"RefPCIeAddrInfo": "#/PcieAddrInfo_17"
},
"BusinessConnector_28": {
"Name": "Down_SW_2_1",
"Direction": "Downstream",
"Slot": 18,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 18,
"Offset": 4,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_18",
"RefPCIeAddrInfo": "#/PcieAddrInfo_18"
},
"BusinessConnector_29": {
"Name": "Down_SW_2_2",
"Direction": "Downstream",
"Slot": 19,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 19,
"Offset": 4,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_19",
"RefPCIeAddrInfo": "#/PcieAddrInfo_19"
},
"BusinessConnector_30": {
"Name": "Down_SW_2_3",
"Direction": "Downstream",
"Slot": 20,
"LinkWidth": "X4",
"MaxLinkRate": "PCIe 3.0",
"ConnectorType": "PCIe CEM",
"UpstreamResources": [
{
"Name": "Up_8",
"ID": 20,
"Offset": 4,
"Width": 4
}
],
"RefMgmtConnector": "#/Connector_PCIE_20",
"RefPCIeAddrInfo": "#/PcieAddrInfo_20"
}
这种配置不确定能不能实现PCIe Switch适配
结论
专家提示：如技术贡献者 HuangDing 所述，当前尚无通用 PCIe Switch 适配方案，“可通过更改代码并增加 CSR 中的字段方式来手动适配” —— 这正是您正在实践的方向。
说明：
潜在问题：
参考建议：社区用户