| 摘要 |
A method and circuit for implementing enhanced transport layer flow control, and a design structure on which the subject circuit resides are provided. The transport layer provides multiple virtual lanes to application layers, and provides buffering and credit control for the multiple virtual lanes. A source transport layer sends a credit request message to a destination transport layer for an outstanding packets transmission. The packets are sent only responsive to the credit request being granted by the destination transport layer. Respective switch and link layer are constructed to support only a single virtual lane, regardless of how many virtual lanes are supported at the application and transport layers. As a result, the routing, buffering, and flow control at the respective switch and link layer are simplified.
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