network_stuff:machine_learning:networking
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | |||
| network_stuff:machine_learning:networking [2025/07/15 19:39] – jotasandoku | network_stuff:machine_learning:networking [2025/07/15 21:08] (current) – jotasandoku | ||
|---|---|---|---|
| Line 93: | Line 93: | ||
| * Packet Sequence Number (PSN), QP Number, and acknowledgment request bits. | * Packet Sequence Number (PSN), QP Number, and acknowledgment request bits. | ||
| \\ | \\ | ||
| + | Packet structure: | ||
| + | Ethernet Header → IP Header → UDP Header → RoCE Packet (BTH + Payload) | ||
| + | The Base Transport Header (BTH) is a key component of the InfiniBand transport layer. It contains essential information for delivering messages in InfiniBand or RDMA over Converged Ethernet (RoCE). | ||
| + | |||
| + | \\ | ||
| + | Specifies the operation type (e.g., RDMA read, write, send, atomic). | ||
| + | * Solicited Event Indicator (SE): Indicates if a completion event is required. | ||
| + | * Migration State (M): Manages Queue Pair (QP) state transitions. | ||
| + | * P_Key: Identifies the partition the packet belongs to. | ||
| + | * Destination QP: Specifies the target Queue Pair for the message. | ||
| + | * Packet Sequence Number (PSN): Ensures ordered delivery and detects packet loss. | ||
| + | * Acknowledgment Request (A): Signals if an acknowledgment is needed for reliable transport. | ||
| + | * Resync Request (R): Handles retransmissions in reliable modes. | ||
| + | |||
| + | |||
| == RDMA VERBS == | == RDMA VERBS == | ||
| They are the **same** for both infiniband and rocev2 | They are the **same** for both infiniband and rocev2 | ||
network_stuff/machine_learning/networking.1752608350.txt.gz · Last modified: by jotasandoku
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
