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- =======================
- 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
- -----------
- 1. Access/management of RapidIO memory regions is not supported
- 2. 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
- ---------
- .. kernel-doc:: include/linux/rio_drv.h
- :internal:
- .. kernel-doc:: drivers/rapidio/rio-driver.c
- :export:
- .. kernel-doc:: drivers/rapidio/rio.c
- :export:
- Internals
- =========
- This chapter contains the autogenerated documentation of the RapidIO
- subsystem.
- Structures
- ----------
- .. kernel-doc:: include/linux/rio.h
- :internal:
- Enumeration and Discovery
- -------------------------
- .. kernel-doc:: drivers/rapidio/rio-scan.c
- :internal:
- Driver functionality
- --------------------
- .. kernel-doc:: drivers/rapidio/rio.c
- :internal:
- .. kernel-doc:: drivers/rapidio/rio-access.c
- :internal:
- Device model support
- --------------------
- .. kernel-doc:: drivers/rapidio/rio-driver.c
- :internal:
- PPC32 support
- -------------
- .. kernel-doc:: arch/powerpc/sysdev/fsl_rio.c
- :internal:
- Credits
- =======
- The following people have contributed to the RapidIO subsystem directly
- or indirectly:
- 1. Matt Porter\ mporter@kernel.crashing.org
- 2. Randy Vinson\ rvinson@mvista.com
- 3. Dan Malek\ dan@embeddedalley.com
- The following people have contributed to this document:
- 1. Matt Porter\ mporter@kernel.crashing.org
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