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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 Hkkinen, University of Helsinki Finland
LAN OSM code
/Proc interface to LAN class
Bug fixes
Core code extensions
Taneli Vhkangas, 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 ?
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