October 2002
Intermediate to advanced
1280 pages
24h 35m
English
Content preview from InfiniBand Network Architecture
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Chapter 13. WRs, WQEs, and CQEs
The Previous Chapter
The previous chapter provided a detailed description of the verbs used to create a QP, modify its operational characteristics, obtain its current operational characteristics, and destroy it. It provided a detailed description of the creation of a QP and the steps required to program it. The QP state machine was described in detail.
This Chapter
This chapter provides a detailed description of how Work Requests (WRs) are posted to a QP's SQ or RQ, as well as a detailed description of the WR content. Once a WR has been posted to a QP's SQ or RQ, it is referred to as a WQE (Work Queue Entry; pronounced as “wookie”). This chapter describes the ordering rules that govern:
WQE execution order.
WQE ...
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