Extended transport header fields – Teledyne LeCroy Automation API for IBTrainer Software Ver.2.0 User Manual

Page 163

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Packet Properties

Properties and Programmatic Settings

CATC IBTrainer InfiniBand Exerciser API Reference

4-17

Extended Transport Header Fields

Depending on the opcode, different types of extended header fields are
present. These fields and the appropriate property values are listed
below. The Reliable Datagram Extended Transport Header (RDETH) is
always present if the packet is part of a reliable datagram message.

Table 17 Reliable Datagram Extended Transport Header (RDETH)

Property Name

Range

Default

Description

RDETH_Reserved0

0 - 255

0

Reserved.

RDETH_EECnxt

0 – 2

24

0

EE-context

The Datagram Extended Transport Header (DETH) is present in every
packet that is part of a datagram request message.

Table 18 Datagram Extended Transport Header (DETH) Properties

Property Name

Range

Default

Description

DETH_Q_Key

0 – 2

32

0

Queue

Key.

DETH_Reserved32

0 - 255

0

Reserved.

DETH_SrcQP

0 – 2

24

0

Source

QP.

The RDMA Extended Transport Header is present in the first packet of
a RDMA (Remote Direct Memory Access) request message.

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