October 2002
Intermediate to advanced
1280 pages
24h 35m
English
Content preview from InfiniBand Network Architecture
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Chapter 3. QP: Message Transfer Mechanism
The Previous Chapter
The previous chapter introduced the concept of device attributes, managers, management agents (MAs), and management datagrams (MADs).
This Chapter
This chapter introduces the concept of the Queue Pair (QP), the message transfer engine that lies at the heart of the IBA technology. Request and response packets, Packet Sequence Numbers (PSNs), and the Verb Layer (a quasi-API used to control an IBA HCA) are introduced. The four IBA QP types are introduced and the concept of the QP Context and its contents are defined. Finally, there is a rather detailed example of a message transfer from one CA to another.
The Next Chapter
The next chapter provides an introduction to the four IBA transport ...
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