NonStop S-Series Server Description Manual (G06.24+)

Interprocessor Communication
HP NonStop S-Series Server Description Manual—520331-003
9-9
Message Transfer Mechanisms
When the remote processor sends an interrupt packet (such as to signify the end of a
transfer), the packet is placed in the interrupt queue (12) for processing by different
levels of exception and interrupt logic (13), and the message system stores the
information in an MQC (14).
Figure 9-4. Message Data Is Transferred To and From Request and Reply Buffers
Reply
Data
Linker or
Listener
Message
System
MQC
Exception and
Interrupt
Logic
Interrupt Queue
Transfer
Information
Block
(TIB)
ServerNet
Services
BTE
Descriptors
Pre-Push
Buffers
ReadLink
Cache
Block Transfer Engine
Hardware
(BTE)
Access Validation
and Translation Hardware
(AVT)
Access
Validation and
Translation
Table
(AVTT)
Allocate and Initialize Buffers
Virtual
Addresses
Physical
Addresses
Client
Process
Client Buffers
Processor
2
3
4
5
6
7
8
9
10
1
13
12
11
Setup
Areas
Request Control
Request
Data
Reply Control
To/From
ServerNet
Links
14
VST341.vsd