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