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一个2.4.21版本的嵌入式linux内核

	Linux I2O Support	(c) Copyright 1999-2002 Red Hat and others.

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version
	2 of the License, or (at your option) any later version.


Hardware Compatibility
-----------------------

This is an informal test summary. It is not definitive as a reference work
or guaranteed of any accuracy.

Last updated for 2.4.19pre7-ac1


Tested Hardware			block	config	lan	proc	scsi
-----------------------------------------------------------------------
Current Release
	AMI MegaRAID[0]		YES	YES	N/A	YES	N/A


Previous Stable Release (2.4.18ac3)
	AMI MegaRAID[0]		FAIL
	DPT Smartraid		------------ Use dpt_i2o module ------------
	Intel SCU RAID		FAIL[2]	???	N/A	???	FAIL[2]
	Promise Supertrak100	YES[3]	YES[3]	N/A	YES[3]	N/A
	Promise SX6000		YES[3]	YES[3]	N/A	YES[3]	N/A
	Symbios FC920		YES	YES[4]	N/A	YES	YES


[0] In I2O mode. For normal mode use the megaraid driver
[1] Initialisation oddities and scsi failure. Use dpt_i2o module instead.
[2] Card hangs under certain load patterns.
[3] The driver works correctly. Certain values are misreported by this
card but the results are only cosmetic. Firmware updates are required for some
very early cards. Set the card into I2O not 'Linux' mode.
[4] HTML configuration mode not available.

Requirements
------------

I2O 1.5 compliant hardware
PCI bus interrupt driven I2O devices
Devices in classes Block, Lan or SCSI.
32bit I2O messages supported

Limitations
-----------
64bit message formats are not supported (64bit I2O is basically a whole 
		different driver variant)
I2O Tape class is not supported (no known devices using this..)
Currently only 32bit x86 platforms are supported.


Authors
--------
	Alan Cox, Building Number Three Ltd.
		Core code, SCSI and Block OSMs

	Steve Ralston, LSI Logic Corp.
		Debugging SCSI and Block OSM

	Deepak Saxena, Intel Corp.
		Various core/block extensions
		/proc interface, bug fixes
		Ioctl interfaces for control
		Debugging LAN OSM

	Philip Rumpf
		Fixed assorted dumb SMP locking bugs

	Juha Sievanen, University of Helsinki Finland
		LAN OSM code
		/proc interface to LAN class
		Bug fixes
		Core code extensions

	Auvo H鋕kinen, University of Helsinki Finland
		LAN OSM code
		/Proc interface to LAN class
		Bug fixes
		Core code extensions

	Taneli V鋒鋕angas, University of Helsinki Finland
		Fixes to i2o_config

	Boji T Kannanthanam
		Intel i2o controller work, extending proc/config stuff

Credits
--------
	This work was made possible by 

Red Hat
	Funding for the Building #3 part of the project

Symbios Logic (Now LSI)
	Host adapters, hints, known to work platforms when I hit
	compatibility problems

BoxHill Corporation
	Loan of initial FibreChannel disk array used for development work.

European Comission
	Funding the work done by the University of Helsinki

SysKonnect
        Loan of FDDI and Gigabit Ethernet cards

ASUSTeK
        Loan of I2O motherboard 

Promise
	Providing a Supertrak 100 board and support info

DPT (now Adaptec)
	Providing a DPT smartraid I2O card (use dpt_i2o for this
	board however)


General:
o	Finish 64bit and big endian cleanup
o	Switch to new PCI mapping layer throughout
o	Hotswap of controllers
o	PCI IOP's without interrupts are not supported yet
o	Push FAIL handling into the core

Block:
o	Multiple major numbers (problem goes away in 2.5)
o	Power management

SCSI:

Lan:	
o	Performance tuning
o	Test Fibre Channel code

Tape:
o	Anyone seen anything implementing this ?