RapidIO Subsystem Guide
| Author: | Matt Porter |
|---|
Introduction
RapidIO is a high speed switched fabric interconnect with features aimed at the embedded market. RapidIO provides support for memory-mapped I/O as well as message-based transactions over the switched fabric network. RapidIO has a standardized discovery mechanism not unlike the PCI bus standard that allows simple detection of devices in a network.
This documentation is provided for developers intending to support RapidIO on new architectures, write new drivers, or to understand the subsystem internals.
Known Bugs and Limitations
Bugs
None. ;)
Limitations
- Access/management of RapidIO memory regions is not supported
- Multiple host enumeration is not supported
RapidIO driver interface
Drivers are provided a set of calls in order to interface with the subsystem to gather info on devices, request/map memory region resources, and manage mailboxes/doorbells.
Functions
Internals
This chapter contains the autogenerated documentation of the RapidIO subsystem.
Structures
Enumeration and Discovery
Driver functionality
Device model support
PPC32 support
Credits
The following people have contributed to the RapidIO subsystem directly or indirectly:
- Matt Portermporter@kernel.crashing.org
- Randy Vinsonrvinson@mvista.com
- Dan Malekdan@embeddedalley.com
The following people have contributed to this document:
- Matt Portermporter@kernel.crashing.org