Chapter 5. Intro to Send/Receive Operations

The Previous Chapter

The previous chapter provided an introduction to the four IBA transport service types (RC, UC, RD, and UD QPs), as well as the two non-IBA transport service types (Raw IPv6 and Raw EtherType QPs) that permit packets associated with virtually any other network protocol to be tunneled through an IBA network encapsulated in “raw” IBA packets.

This Chapter

This chapter provides an introduction to the five types of message transfer requests that can posted to and executed by a QP's SQ logic. It also introduces the single type of message transfer request that can be posted to and executed by a QP's RQ logic.

The Next Chapter

The next chapter provides an introduction to the layers comprising the IBA stack that handles message transmission and reception. Those layers are:

• The ULP (Upper Layer Protocol). This is actually not part of the IBA stack. Rather, it is comprised of OS and application software that uses the stack to pass messages with remote CAs.

• The Verb Layer.

• The Transport Layer.

• The Network Layer.

• The Link Layer.

• The Physical Layer.