Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 ======================= 2 RapidIO Subsystem Guide 3 ======================= 4 5 :Author: Matt Porter 6 7 Introduction 8 ============ 9 10 RapidIO is a high speed switched fabric interconnect with features aimed 11 at the embedded market. RapidIO provides support for memory-mapped I/O 12 as well as message-based transactions over the switched fabric network. 13 RapidIO has a standardized discovery mechanism not unlike the PCI bus 14 standard that allows simple detection of devices in a network. 15 16 This documentation is provided for developers intending to support 17 RapidIO on new architectures, write new drivers, or to understand the 18 subsystem internals. 19 20 Known Bugs and Limitations 21 ========================== 22 23 Bugs 24 ---- 25 26 None. ;) 27 28 Limitations 29 ----------- 30 31 1. Access/management of RapidIO memory regions is not supported 32 33 2. Multiple host enumeration is not supported 34 35 RapidIO driver interface 36 ======================== 37 38 Drivers are provided a set of calls in order to interface with the 39 subsystem to gather info on devices, request/map memory region 40 resources, and manage mailboxes/doorbells. 41 42 Functions 43 --------- 44 45 .. kernel-doc:: include/linux/rio_drv.h 46 :internal: 47 48 .. kernel-doc:: drivers/rapidio/rio-driver.c 49 :export: 50 51 .. kernel-doc:: drivers/rapidio/rio.c 52 :export: 53 54 Internals 55 ========= 56 57 This chapter contains the autogenerated documentation of the RapidIO 58 subsystem. 59 60 Structures 61 ---------- 62 63 .. kernel-doc:: include/linux/rio.h 64 :internal: 65 66 Enumeration and Discovery 67 ------------------------- 68 69 .. kernel-doc:: drivers/rapidio/rio-scan.c 70 :internal: 71 72 Driver functionality 73 -------------------- 74 75 .. kernel-doc:: drivers/rapidio/rio.c 76 :internal: 77 78 .. kernel-doc:: drivers/rapidio/rio-access.c 79 :internal: 80 81 Device model support 82 -------------------- 83 84 .. kernel-doc:: drivers/rapidio/rio-driver.c 85 :internal: 86 87 PPC32 support 88 ------------- 89 90 .. kernel-doc:: arch/powerpc/sysdev/fsl_rio.c 91 :internal: 92 93 Credits 94 ======= 95 96 The following people have contributed to the RapidIO subsystem directly 97 or indirectly: 98 99 1. Matt Porter\ mporter@kernel.crashing.org 100 101 2. Randy Vinson\ rvinson@mvista.com 102 103 3. Dan Malek\ dan@embeddedalley.com 104 105 The following people have contributed to this document: 106 107 1. Matt Porter\ mporter@kernel.crashing.org