Wave: 将资源管理卸载到 SmartNIC 核心

graph TB subgraph "主机系统 Host System" A["应用程序 Applications"] --> B["ghOSt 调度器 ghOSt Scheduler"] A --> C["内存管理器 Memory Manager"] A --> D["RPC 协议栈 RPC Stack"] B --> E["Linux 内核 Linux Kernel"] C --> E D --> E E --> F["硬件机制 Hardware Mechanisms"] end subgraph "PCIe 互连 PCIe Interconnect" G["Wave API
MMIO/DMA
事务性通信"] G -.->|"426 ns 延迟"| G end subgraph "SmartNIC IPU" H["调度代理 Scheduling Agent"] I["内存代理 Memory Agent"] J["RPC 代理 RPC Agent"] K["共享内存队列 Shared Memory Queues"] L["ARM 核心 ARM Cores"] M["网络引擎 Network Engine"] end B -.->|"策略决策"| H C -.->|"策略决策"| I D -.->|"策略决策"| J H --> K I --> K J --> K K --> L L --> M style A fill:#e3f2fd,stroke:#1976d2,stroke-width:2px,color:#000 style E fill:#e8f5e8,stroke:#388e3c,stroke-width:2px,color:#000 style L fill:#fff3e0,stroke:#f57c00,stroke-width:2px,color:#000 style M fill:#fce4ec,stroke:#c2185b,stroke-width:2px,color:#000 style G fill:#f3e5f5,stroke:#7b1fa2,stroke-width:3px,color:#000 style H fill:#f8f9fa,stroke:#495057,stroke-width:2px,color:#000 style I fill:#f8f9fa,stroke:#495057,stroke-width:2px,color:#000 style J fill:#f8f9fa,stroke:#495057,stroke-width:2px,color:#000 style K fill:#f8f9fa,stroke:#495057,stroke-width:2px,color:#000 style B fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style C fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style D fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style F fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000

sequenceDiagram participant Host as "主机 Host" participant Queue as "共享队列 Queue" participant Agent as "SmartNIC Agent" participant Core as "ARM Core" Host->>Queue: SEND_MESSAGES(q, events) Note right of Host: 批量发送事件 Queue->>Agent: POLL_MESSAGES(q) Agent->>Core: 策略计算 Core-->>Agent: 决策结果 Agent->>Queue: TXN_CREATE(q) Note left of Agent: 创建事务上下文 Agent->>Queue: TXNS_COMMIT(q, flags) Note left of Agent: 原子性提交 alt SEND_MSIX Queue->>Host: MSI-X 中断通知 Host->>Queue: POLL_TXNS(q) else SKIP_MSIX Host->>Queue: 轮询检查 end Host->>Queue: 应用决策 Host->>Queue: SET_TXNS_OUTCOMES() Queue->>Agent: POLL_TXNS_OUTCOMES() Note right of Agent: 获取执行结果 alt 事务成功 Agent->>Agent: 继续处理 else 事务失败 Agent->>Core: 重新计算策略 end

flowchart TD subgraph "SmartNIC Agent" A["扫描主机核心运行队列"] --> B{"识别空闲核心"} B -->|是| C["从就绪队列选择最优线程"] B -->|否| A C --> D["生成调度决策"] D --> E["写入核心预暂存槽"] E --> F["标记为 VALID"] F --> G{"就绪队列变化?"} G -->|是| H["使受影响槽位 INVALID"] G -->|否| A H --> I["重新计算决策"] I --> A end subgraph "主机核心" J["线程阻塞/让出"] --> K{"检查预暂存槽"} K -->|VALID| L["直接应用决策"] K -->|INVALID/空| M["发送紧急调度请求"] L --> N["发送消耗确认"] M --> O["等待实时响应"] O --> P["应用决策"] P --> Q["标记预暂存槽"] style A fill:#e3f2fd,stroke:#1976d2,stroke-width:2px,color:#000 style B fill:#fff3e0,stroke:#f57c00,stroke-width:2px,color:#000 style L fill:#e8f5e8,stroke:#388e3c,stroke-width:3px,color:#000 style M fill:#ffebee,stroke:#d32f2f,stroke-width:2px,color:#000 style J fill:#f3e5f5,stroke:#7b1fa2,stroke-width:2px,color:#000 style K fill:#f3e5f5,stroke:#7b1fa2,stroke-width:2px,color:#000 style N fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style O fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style P fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000 style Q fill:#f8f9fa,stroke:#495057,stroke-width:1px,color:#000