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phoenix |
Linux I2O Support (c) Copyright 1999-2002 Red Hat and others.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version
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2 of the License, or (at your option) any later version.
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Hardware Compatibility
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-----------------------
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This is an informal test summary. It is not definitive as a reference work
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or guaranteed of any accuracy.
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Last updated for 2.4.19pre7-ac1
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Tested Hardware block config lan proc scsi
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-----------------------------------------------------------------------
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Current Release
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AMI MegaRAID[0] YES YES N/A YES N/A
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Previous Stable Release (2.4.18ac3)
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AMI MegaRAID[0] FAIL
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DPT Smartraid ------------ Use dpt_i2o module ------------
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Intel SCU RAID FAIL[2] ??? N/A ??? FAIL[2]
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Promise Supertrak100 YES[3] YES[3] N/A YES[3] N/A
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Promise SX6000 YES[3] YES[3] N/A YES[3] N/A
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Symbios FC920 YES YES[4] N/A YES YES
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[0] In I2O mode. For normal mode use the megaraid driver
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[1] Initialisation oddities and scsi failure. Use dpt_i2o module instead.
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[2] Card hangs under certain load patterns.
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[3] The driver works correctly. Certain values are misreported by this
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card but the results are only cosmetic. Firmware updates are required for some
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very early cards. Set the card into I2O not 'Linux' mode.
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[4] HTML configuration mode not available.
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Requirements
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------------
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I2O 1.5 compliant hardware
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PCI bus interrupt driven I2O devices
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Devices in classes Block, Lan or SCSI.
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32bit I2O messages supported
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Limitations
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-----------
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64bit message formats are not supported (64bit I2O is basically a whole
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different driver variant)
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I2O Tape class is not supported (no known devices using this..)
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Currently only 32bit x86 platforms are supported.
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Authors
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--------
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Alan Cox, Building Number Three Ltd.
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Core code, SCSI and Block OSMs
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Steve Ralston, LSI Logic Corp.
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Debugging SCSI and Block OSM
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Deepak Saxena, Intel Corp.
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Various core/block extensions
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/proc interface, bug fixes
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Ioctl interfaces for control
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Debugging LAN OSM
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Philip Rumpf
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Fixed assorted dumb SMP locking bugs
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Juha Sievanen, University of Helsinki Finland
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LAN OSM code
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/proc interface to LAN class
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Bug fixes
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Core code extensions
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Auvo Häkkinen, University of Helsinki Finland
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LAN OSM code
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/Proc interface to LAN class
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Bug fixes
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Core code extensions
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Taneli Vähäkangas, University of Helsinki Finland
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Fixes to i2o_config
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Boji T Kannanthanam
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Intel i2o controller work, extending proc/config stuff
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Credits
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--------
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This work was made possible by
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Red Hat
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Funding for the Building #3 part of the project
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Symbios Logic (Now LSI)
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Host adapters, hints, known to work platforms when I hit
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compatibility problems
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BoxHill Corporation
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Loan of initial FibreChannel disk array used for development work.
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European Comission
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Funding the work done by the University of Helsinki
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SysKonnect
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Loan of FDDI and Gigabit Ethernet cards
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ASUSTeK
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Loan of I2O motherboard
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Promise
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Providing a Supertrak 100 board and support info
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DPT (now Adaptec)
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Providing a DPT smartraid I2O card (use dpt_i2o for this
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board however)
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General:
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o Finish 64bit and big endian cleanup
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o Switch to new PCI mapping layer throughout
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o Hotswap of controllers
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o PCI IOP's without interrupts are not supported yet
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o Push FAIL handling into the core
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Block:
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o Multiple major numbers (problem goes away in 2.5)
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o Power management
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SCSI:
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Lan:
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o Performance tuning
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o Test Fibre Channel code
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Tape:
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o Anyone seen anything implementing this ?
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