93 lines
3.4 KiB
ReStructuredText
93 lines
3.4 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0
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===================
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Adaptec dpti driver
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===================
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Redistribution and use in source form, with or without modification, are
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permitted provided that redistributions of source code must retain the
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above copyright notice, this list of conditions and the following disclaimer.
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This software is provided ``as is`` by Adaptec and
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any express or implied warranties, including, but not limited to, the
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implied warranties of merchantability and fitness for a particular purpose,
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are disclaimed. In no event shall Adaptec be
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liable for any direct, indirect, incidental, special, exemplary or
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consequential damages (including, but not limited to, procurement of
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substitute goods or services; loss of use, data, or profits; or business
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interruptions) however caused and on any theory of liability, whether in
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contract, strict liability, or tort (including negligence or otherwise)
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arising in any way out of the use of this driver software, even if advised
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of the possibility of such damage.
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This driver supports the Adaptec I2O RAID and DPT SmartRAID V I2O boards.
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Credits
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=======
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The original linux driver was ported to Linux by Karen White while at
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Dell Computer. It was ported from Bob Pasteur's (of DPT) original
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non-Linux driver. Mark Salyzyn and Bob Pasteur consulted on the original
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driver.
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2.0 version of the driver by Deanna Bonds and Mark Salyzyn.
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History
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=======
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The driver was originally ported to linux version 2.0.34
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==== ==========================================================================
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V2.0 Rewrite of driver. Re-architectured based on i2o subsystem.
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This was the first full GPL version since the last version used
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i2osig headers which were not GPL. Developer Testing version.
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V2.1 Internal testing
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V2.2 First released version
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V2.3 Changes:
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- Added Raptor Support
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- Fixed bug causing system to hang under extreme load with
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- management utilities running (removed GFP_DMA from kmalloc flags)
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V2.4 First version ready to be submitted to be embedded in the kernel
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Changes:
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- Implemented suggestions from Alan Cox
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- Added calculation of resid for sg layer
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- Better error handling
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- Added checking underflow conditions
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- Added DATAPROTECT checking
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- Changed error return codes
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- Fixed pointer bug in bus reset routine
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- Enabled hba reset from ioctls (allows a FW flash to reboot and use
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the new FW without having to reboot)
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- Changed proc output
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==== ==========================================================================
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TODO
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====
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- Add 64 bit Scatter Gather when compiled on 64 bit architectures
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- Add sparse lun scanning
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- Add code that checks if a device that had been taken offline is
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now online (at the FW level) when test unit ready or inquiry
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command from scsi-core
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- Add proc read interface
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- busrescan command
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- rescan command
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- Add code to rescan routine that notifies scsi-core about new devices
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- Add support for C-PCI (hotplug stuff)
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- Add ioctl passthru error recovery
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Notes
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=====
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The DPT card optimizes the order of processing commands. Consequently,
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a command may take up to 6 minutes to complete after it has been sent
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to the board.
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The files dpti_ioctl.h dptsig.h osd_defs.h osd_util.h sys_info.h are part of the
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interface files for Adaptec's management routines. These define the structures used
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in the ioctls. They are written to be portable. They are hard to read, but I need
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to use them 'as is' or I can miss changes in the interface.
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