| .. 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. |
