1 .. SPDX-License-Identifier: GPL-2.0 2 3 =================== 4 Adaptec dpti driver 5 =================== 6 7 Redistribution and use in source form, with or without modification, are 8 permitted provided that redistributions of source code must retain the 9 above copyright notice, this list of conditions and the following disclaimer. 10 11 This software is provided ``as is`` by Adaptec and 12 any express or implied warranties, including, but not limited to, the 13 implied warranties of merchantability and fitness for a particular purpose, 14 are disclaimed. In no event shall Adaptec be 15 liable for any direct, indirect, incidental, special, exemplary or 16 consequential damages (including, but not limited to, procurement of 17 substitute goods or services; loss of use, data, or profits; or business 18 interruptions) however caused and on any theory of liability, whether in 19 contract, strict liability, or tort (including negligence or otherwise) 20 arising in any way out of the use of this driver software, even if advised 21 of the possibility of such damage. 22 23 This driver supports the Adaptec I2O RAID and DPT SmartRAID V I2O boards. 24 25 Credits 26 ======= 27 28 The original linux driver was ported to Linux by Karen White while at 29 Dell Computer. It was ported from Bob Pasteur's (of DPT) original 30 non-Linux driver. Mark Salyzyn and Bob Pasteur consulted on the original 31 driver. 32 33 2.0 version of the driver by Deanna Bonds and Mark Salyzyn. 34 35 History 36 ======= 37 38 The driver was originally ported to linux version 2.0.34 39 40 ==== ========================================================================== 41 V2.0 Rewrite of driver. Re-architectured based on i2o subsystem. 42 This was the first full GPL version since the last version used 43 i2osig headers which were not GPL. Developer Testing version. 44 V2.1 Internal testing 45 V2.2 First released version 46 47 V2.3 Changes: 48 49 - Added Raptor Support 50 - Fixed bug causing system to hang under extreme load with 51 - management utilities running (removed GFP_DMA from kmalloc flags) 52 53 V2.4 First version ready to be submitted to be embedded in the kernel 54 55 Changes: 56 57 - Implemented suggestions from Alan Cox 58 - Added calculation of resid for sg layer 59 - Better error handling 60 - Added checking underflow conditions 61 - Added DATAPROTECT checking 62 - Changed error return codes 63 - Fixed pointer bug in bus reset routine 64 - Enabled hba reset from ioctls (allows a FW flash to reboot and use 65 the new FW without having to reboot) 66 - Changed proc output 67 ==== ========================================================================== 68 69 TODO 70 ==== 71 - Add 64 bit Scatter Gather when compiled on 64 bit architectures 72 - Add sparse lun scanning 73 - Add code that checks if a device that had been taken offline is 74 now online (at the FW level) when test unit ready or inquiry 75 command from scsi-core 76 - Add proc read interface 77 - busrescan command 78 - rescan command 79 - Add code to rescan routine that notifies scsi-core about new devices 80 - Add support for C-PCI (hotplug stuff) 81 - Add ioctl passthru error recovery 82 83 Notes 84 ===== 85 The DPT card optimizes the order of processing commands. Consequently, 86 a command may take up to 6 minutes to complete after it has been sent 87 to the board. 88 89 The files dpti_ioctl.h dptsig.h osd_defs.h osd_util.h sys_info.h are part of the 90 interface files for Adaptec's management routines. These define the structures used 91 in the ioctls. They are written to be portable. They are hard to read, but I need 92 to use them 'as is' or I can miss changes in the interface.
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