|  | Sat May 12 12:00 2001 Gerard Roudier (groudier@club-internet.fr) | 
|  | * version ncr53c8xx-3.4.3b | 
|  | - Ensure LEDC bit in GPCNTL is cleared when reading the NVRAM. | 
|  | Fix sent by Stig Telfer <stig@api-networks.com>. | 
|  | - Define scsi_set_pci_device() as nil for kernel < 2.4.4. | 
|  |  | 
|  | Mon Feb 12 22:30 2001 Gerard Roudier (groudier@club-internet.fr) | 
|  | * version ncr53c8xx-3.4.3 | 
|  | - Call pci_enable_device() as AC wants this to be done. | 
|  | - Get both the BAR cookies actual and PCI BAR values. | 
|  | (see Changelog.sym53c8xx rev. 1.7.3 for details) | 
|  | - Merge changes for linux-2.4 that declare the host template | 
|  | in the driver object also when the driver is statically | 
|  | linked with the kernel. | 
|  |  | 
|  | Sun Sep 24 21:30 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * version ncr53c8xx-3.4.2 | 
|  | - See Changelog.sym53c8xx, driver version 1.7.2. | 
|  |  | 
|  | Wed Jul 26 23:30 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * version ncr53c8xx-3.4.1 | 
|  | - Provide OpenFirmware path through the proc FS on PPC. | 
|  | - Remove trailing argument #2 from a couple of #undefs. | 
|  |  | 
|  | Sun Jul 09 16:30 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * version ncr53c8xx-3.4.0 | 
|  | - Remove the PROFILE C and SCRIPTS code. | 
|  | This facility was not this useful and thus was not longer | 
|  | desirable given the increasing complexity of the driver code. | 
|  | - Merges from FreeBSD sym-1.6.2 driver: | 
|  | * Clarify memory barriers needed by the driver for architectures | 
|  | that implement a weak memory ordering. | 
|  | - General cleanup: | 
|  | Move definitions for barriers and IO/MMIO operations to the | 
|  | sym53c8xx_defs.h header files. They are now shared by the | 
|  | both drivers. | 
|  | Use SCSI_NCR_IOMAPPED instead of NCR_IOMAPPED. | 
|  |  | 
|  | Thu May 11   12:30 2000 Pam Delaney (pam.delaney@lsil.com) | 
|  | * revision 3.3b | 
|  |  | 
|  | Mon Apr 24 12:00 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2i | 
|  | - Return value 1 (instead of 0) from the driver setup routine. | 
|  | - Let the driver also attach controllers that have been set to | 
|  | OFF in the NVRAM as it did prior to revision 3.2g. | 
|  |  | 
|  | Sat Apr 1  12:00 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2h | 
|  | - Fix a compilation problem on Alpha introduced in version 3.2g. | 
|  | (`port' changed to `base_io'). | 
|  | - Move from `sym' to this driver a tiny change for __sparc__ that | 
|  | applies to cache line size (? Probably from David S Miller). | 
|  | - Make sure no data transfer will happen for Scsi_Cmnd requests | 
|  | that supply SCSI_DATA_NONE direction (this avoids some BUG() | 
|  | statement in the PCI code when a data buffer is also supplied). | 
|  |  | 
|  | Thu Mar 16   9:30 2000 Pam Delaney (pam.delaney@lsil.com) | 
|  | * revision 3.3b-3 | 
|  | - Added exclusion for the 53C1010 and 53C1010_66 chips | 
|  | to the driver (change to sym53c8xx_comm.h). | 
|  |  | 
|  | Mon March 6  23:15 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2g | 
|  | - Add the file sym53c8xx_comm.h that collects code that should | 
|  | be shared by sym53c8xx and ncr53c8xx drivers. For now, it is | 
|  | a header file that is only included by the ncr53c8xx driver, | 
|  | but things will be cleaned up later. This code addresses | 
|  | notably: | 
|  | * Chip detection and PCI related initialisations | 
|  | * NVRAM detection and reading | 
|  | * DMA mapping | 
|  | * Boot setup command | 
|  | * And some other ... | 
|  | - Add support for the new dynamic dma mapping kernel interface. | 
|  | Requires Linux-2.3.47 (tested with pre-2.3.47-6). | 
|  | - Get data transfer direction from the scsi command structure | 
|  | (Scsi_Cmnd) when this information is available. | 
|  |  | 
|  | Mon March 6  23:15 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2g | 
|  | - Add the file sym53c8xx_comm.h that collects code that should | 
|  | be shared by sym53c8xx and ncr53c8xx drivers. For now, it is | 
|  | a header file that is only included by the ncr53c8xx driver, | 
|  | but things will be cleaned up later. This code addresses | 
|  | notably: | 
|  | * Chip detection and PCI related initialisations | 
|  | * NVRAM detection and reading | 
|  | * DMA mapping | 
|  | * Boot setup command | 
|  | * And some other ... | 
|  | - Add support for the new dynamic dma mapping kernel interface. | 
|  | Requires Linux-2.3.47 (tested with pre-2.3.47-6). | 
|  | - Get data transfer direction from the scsi command structure | 
|  | (Scsi_Cmnd) when this information is available. | 
|  |  | 
|  | Fri Jan 14 14:00 2000 Pam Delaney (pam.delaney@lsil.com) | 
|  | * revision pre-3.3b-1 | 
|  | - Merge parallel driver series 3.31 and 3.2e | 
|  |  | 
|  | Tue Jan 11 14:00 2000 Pam Delaney (pam.delaney@lsil.com) | 
|  | * revision 3.31 | 
|  | - Added support for mounting disks on wide-narrow-wide | 
|  | scsi configurations. | 
|  | - Built off of version 3.30 | 
|  |  | 
|  | Mon Jan 10 13:30 2000 Pam Delaney (pam.delaney@lsil.com) | 
|  | * revision 3.30 | 
|  | - Added capability to use the integrity checking code | 
|  | in the kernel (optional). | 
|  | - Disabled support for the 53C1010. | 
|  | - Built off of version 3.2c | 
|  |  | 
|  | Sat Jan 8  22:00 2000 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2e | 
|  | - Add year 2000 copyright. | 
|  | - Display correctly bus signals when bus is detected wrong. | 
|  | - Remove the dead code that broke driver 3.2d. | 
|  |  | 
|  | Mon Dec 6  22:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2d | 
|  | - Change messages written by the driver at initialisation and | 
|  | through the /proc FS (rather cosmetic changes that consist in | 
|  | printing out the PCI bus number and device/function). | 
|  | - Get rid of the old PCI bios interface, but preserve kernel 2.0 | 
|  | compatibility from a simple wrapper. | 
|  | - Remove the compilation condition about having to acquire the | 
|  | io_request_lock since it seems to be a definite feature now.:) | 
|  | - proc_dir structure no longer needed for kernel >= 2.3.27. | 
|  | - Change the driver detection code by the sym53c8xx one, modulo | 
|  | some minor changes. The driver can now attach any number of | 
|  | controllers (>40) and does no longer hoger stack space at | 
|  | initialisation. | 
|  | - Definitely disable overlapped PCI arbitration for all dual | 
|  | function chips, since I cannot make sure for what chip revisions | 
|  | it is actually safe. | 
|  | - Add support for the SYM53C1510D. | 
|  | - Update the poor Tekram sync factor table. | 
|  | - Remove the compilation condition about having to acquire the | 
|  | io_request_lock since it seems to be a definite feature now.:) | 
|  | - proc_dir structure no longer needed for kernel >= 2.3.27. | 
|  |  | 
|  | Sat Sep 11  18:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2c | 
|  | - Handle correctly (hopefully) jiffies wrap-around. | 
|  | - Restore the entry used to detect 875 until revision 0xff. | 
|  | (I removed it inadvertently, it seems :) ) | 
|  | - Replace __initfunc() which is deprecated stuff by __init which | 
|  | is not yet so. ;-) | 
|  | - Add support of some 'resource handling' for linux-2.3.13. | 
|  | Basically the BARs have been changed to something more complex | 
|  | in the pci_dev structure. | 
|  | - Remove some deprecated code. | 
|  |  | 
|  | Sat May 10  11:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision pre-3.2b-1 | 
|  | - Support for the 53C895A by Pamela Delaney <pam.delaney@lsil.com> | 
|  | The 53C895A contains all of the features of the 896 but has only | 
|  | one channel and has a 32 bit PCI bus. It does 64 bit PCI addressing | 
|  | using dual cycle PCI data transfers. | 
|  | - Miscellaneous minor fixes. | 
|  | - Some additions to the README.ncr53c8xx file. | 
|  |  | 
|  | Sun Apr 11  10:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2a | 
|  | - Add 'hostid:#id' boot option. This option allows to change the | 
|  | default SCSI id the driver uses for controllers. | 
|  | - Remove nvram layouts and driver set-up structures from the C source, | 
|  | and use the one defined in sym53c8xx_defs.h file. | 
|  | (shared by both drivers). | 
|  | - Set for now MAX LUNS to 16 (instead of 8). | 
|  |  | 
|  | Thu Mar 11  23:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.2	  (8xx-896 driver bundle) | 
|  | - Only define the host template in ncr53c8xx.h and include the | 
|  | sym53c8xx_defs.h file. | 
|  | - Declare static all symbols that do not need to be visible from | 
|  | outside the driver code. | 
|  | - Add 'excl' boot command option that allows to pass to the driver | 
|  | io address of devices not to attach. | 
|  | - Add info() function called from the host template to print | 
|  | driver/host information. | 
|  | - Minor documentation additions. | 
|  |  | 
|  | Sat Mar 6  11:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1h | 
|  | - Fix some oooold bug that hangs the bus if a device rejects a | 
|  | negotiation. Btw, the corresponding stuff also needed some cleanup | 
|  | and thus the change is a bit larger than it could have been. | 
|  | - Still some typo that made compilation fail for 64 bit (trivial fix). | 
|  |  | 
|  | Sun Feb  14:00 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1g | 
|  | - Deal correctly with 64 bit PCI address registers on Linux 2.2. | 
|  | Pointed out by Leonard Zubkoff. | 
|  | - Allow to tune request_irq() flags from the boot command line using | 
|  | ncr53c8xx=irqm:??, as follows: | 
|  | a) If bit 0x10 is set in irqm, IRQF_SHARED flag is not used. | 
|  | b) If bit 0x20 is set in irqm, IRQF_DISABLED flag is not used. | 
|  | By default the driver uses both IRQF_SHARED and IRQF_DISABLED. | 
|  | Option 'ncr53c8xx=irqm:0x20' may be used when an IRQ is shared by | 
|  | a 53C8XX adapter and a network board. | 
|  | - Tiny misspelling fixed (ABORT instead of ABRT). Was fortunately | 
|  | harmless. | 
|  | - Negotiate SYNC data transfers with CCS devices. | 
|  |  | 
|  | Sat Jan 16  17:30 1999 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1f | 
|  | - Some PCI fix-ups not needed any more for PPC (from Cort). | 
|  | - Cache line size set to 16 DWORDS for Sparc   (from DSM). | 
|  | - Waiting list look-up didn't work for the first command of the list. | 
|  | - Remove 2 useless lines of code. | 
|  |  | 
|  | Sun Dec 13  18:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1e | 
|  | - Same work-around as for the 53c876 rev <= 0x15 for 53c896 rev 1: | 
|  | Disable overlapped arbitration. This will not make difference | 
|  | since the chip has on-chip RAM. | 
|  |  | 
|  | Thu Nov 26  22:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1d | 
|  | - The SISL RAID change requires now remap_pci_mem() stuff to be | 
|  | compiled for __i386__ when normal IOs are used. | 
|  | - Minor spelling fixes in doc files. | 
|  |  | 
|  | Sat Nov 21  18:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1c | 
|  | - Ignore chips that are driven by SISL RAID (DAC 960). | 
|  | Change sent by Leonard Zubkoff and slightly reworked. | 
|  | - Still a buglet in the tags initial settings that needed to be fixed. | 
|  | It was not possible to disable TGQ at system startup for devices | 
|  | that claim TGQ support. The driver used at least 2 for the queue | 
|  | depth but did'nt keep track of user settings for tags depth lower | 
|  | than 2. | 
|  |  | 
|  | Wed Nov 11  10:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1b | 
|  | - The driver was unhappy when configured with default_tags > MAX_TAGS | 
|  | Hopefully doubly-fixed. | 
|  | - Update the Configure.help driver section that speaks of TAGS. | 
|  |  | 
|  | Wed Oct 21 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.1a | 
|  | - Changes from Eddie Dost for Sparc and Alpha: | 
|  | ioremap/iounmap support for Sparc. | 
|  | pcivtophys changed to bus_dvma_to_phys. | 
|  | - Add the 53c876 description to the chip table. This is only useful | 
|  | for printing the right name of the controller. | 
|  | - DEL-441 Item 2 work-around for the 53c876 rev <= 5 (0x15). | 
|  | - Add additional checking of INQUIRY data: | 
|  | Check INQUIRY data received length is at least 7. Byte 7 of | 
|  | inquiry data contains device features bits and the driver might | 
|  | be confused by garbage. Also check peripheral qualifier. | 
|  | - Cleanup of the SCSI tasks management: | 
|  | Remove the special case for 32 tags. Now the driver only uses the | 
|  | scheme that allows up to 64 tags per LUN. | 
|  | Merge some code from the 896 driver. | 
|  | Use a 1,3,5,...MAXTAGS*2+1 tag numbering. Previous driver could | 
|  | use any tag number from 1 to 253 and some non conformant devices | 
|  | might have problems with large tag numbers. | 
|  | - 'no_sync' changed to 'no_disc' in the README file. This is an old | 
|  | and trivial mistake that seems to demonstrate the README file is | 
|  | not often read. :) | 
|  |  | 
|  | Sun Oct  4 14:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0i | 
|  | - Cosmetic changes for sparc (but not for the driver) that needs | 
|  | __irq_itoa() to be used for printed IRQ value to be understandable. | 
|  | - Some problems with the driver that didn't occur using driver 2.5f | 
|  | were due to a SCSI selection problem triggered by a clearly | 
|  | documented feature that in fact seems not to work: (53C8XX chips | 
|  | are claimed by the manuals to be able to execute SCSI scripts just | 
|  | after abitration while the SCSI core is performing SCSI selection). | 
|  | This optimization is broken and has been removed. | 
|  | - Some broken scsi devices are confused when a negotiation is started | 
|  | on a LUN that does not correspond to a real device. According to | 
|  | SCSI specs, this is a device firmware bug. This has been worked | 
|  | around by only starting negotiation if the LUN has previously be | 
|  | used for at least 1 successful SCSI command. | 
|  | - The 'last message sent' printed out on M_REJECT message reception | 
|  | was read from the SFBR i/o register after the previous message had | 
|  | been sent. | 
|  | This was not correct and affects all previous driver versions and | 
|  | the original FreeBSD one as well. The SCSI scripts has been fixed | 
|  | so that it now provides the right information to the C code. | 
|  |  | 
|  | Sat Jul 18 13:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0g | 
|  | - Preliminary fixes for Big Endian (sent by Eddie C. Dost). | 
|  | Big Endian architectures should work again with the driver. | 
|  | Eddie's patch has been partially applied since current 2.1.109 | 
|  | does not have all the Sparc changes of the vger tree. | 
|  | - Use of BITS_PER_LONG instead of (~0UL == 0xffffffffUL) has fixed | 
|  | the problem observed when the driver was compiled using EGCS or | 
|  | PGCC. | 
|  |  | 
|  | Mon Jul 13 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0f | 
|  | - Some spelling fixes. | 
|  | - linux/config.h misplaced in ncr53c8xx.h | 
|  | - MODULE_PARM stuff added for linux 2.1. | 
|  | - check INQUIRY response data format is exactly 2. | 
|  | - use BITS_PER_LONG if defined. | 
|  |  | 
|  | Sun Jun 28 12:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0e | 
|  | - Some cleanup, spelling fixes, version checks, documentations | 
|  | changes, etc ... | 
|  |  | 
|  | Sat Jun 20 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0c | 
|  | - Add a boot setup option that allows to set up device queue depths | 
|  | at boot-up. This option is very useful since Linux does not | 
|  | allow to change scsi device queue depth once the system has been | 
|  | booted up. | 
|  |  | 
|  | Sun Jun 15 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0a | 
|  | - Support for up to 64 TAGS per LUN. | 
|  | - Rewrite the TARGET vs LUN capabilities management. | 
|  | CmdQueue is now handled as a LUN capability as it shall be. | 
|  | This also fixes a bug triggered when disabling tagged command | 
|  | queuing for a device that had this feature enabled. | 
|  | - Remove the ncr_opennings() stuff that was useless under Linux | 
|  | and hard to understand to me. | 
|  | - Add "setverbose" procfs driver command. It allows to tune | 
|  | verbose level after boot-up. Setting this level to zero, for | 
|  | example avoid flooding the syslog file. | 
|  | - Add KERN_XXX to some printk's. | 
|  |  | 
|  | Tue Jun 10 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 3.0 | 
|  | - Linux config changes for 2.0.34: | 
|  | Remove NVRAM detection config option. This option is now enabled | 
|  | by default but can be disabled by editing the driver header file. | 
|  | Add a PROFILE config option. | 
|  | - Update Configure.help | 
|  | - Add calls to new function mdelay() for milli-seconds delay if | 
|  | kernel version >= 2.1.105. | 
|  | - Replace all printf(s) by printk(s). After all, the ncr53c8xx is | 
|  | a driver for Linux. | 
|  | - Perform auto-sense on COMMAND TERMINATED. Not sure it is useful. | 
|  | - Some other minor changes. | 
|  |  | 
|  | Tue Jun 4 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6n | 
|  | - Code cleanup and simplification: | 
|  | Remove kernel 1.2.X and 1.3.X support. | 
|  | Remove the _old_ target capabilities table. | 
|  | Remove the error recovery code that have'nt been really useful. | 
|  | Use a single alignment boundary (CACHE_LINE_SIZE) for data | 
|  | structures. | 
|  | - Several aggressive SCRIPTS optimizations and changes: | 
|  | Reselect SCRIPTS code rewritten. | 
|  | Support for selection/reselection without ATN. | 
|  | And some others. | 
|  | - Miscallaneous changes in the C code: | 
|  | Count actual number of CCB queued to the controller (future use). | 
|  | Lots of other minor changes. | 
|  |  | 
|  | Wed May 13 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6m | 
|  | - Problem of missed SCSI bus reset with the 53C895 fixed by | 
|  | Richard Waltham. The 53C895 needs about 650 us for the bus | 
|  | mode to settle. Delays used while resetting the controller | 
|  | and the bus have been adjusted. Thanks Richard! | 
|  | - Some simplification for 64 bit arch done ccb address testing. | 
|  | - Add a check of the MSG_OUT phase after Selection with ATN. | 
|  | - The new tagged queue stuff seems ok, so some informationnal | 
|  | message have been conditionned by verbose >= 3. | 
|  | - Donnot reset if a SBMC interrupt reports the same bus mode. | 
|  | - Print out the whole driver set-up. Some options were missing and | 
|  | the print statement was misplaced for modules. | 
|  | - Ignore a SCSI parity interrupt if the chip is not connected to | 
|  | the SCSI bus. | 
|  |  | 
|  | Sat May 1 16:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6l | 
|  | - Add CCB done queue support for Alpha and perhaps some other | 
|  | architectures. | 
|  | - Add some barriers to enforce memory ordering for x86 and | 
|  | Alpha architectures. | 
|  | - Fix something that looks like an old bug in the nego SIR | 
|  | interrupt code in case of negotiation failure. | 
|  |  | 
|  | Sat Apr 25 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6k | 
|  | - Remove all accesses to the on-chip RAM from the C code: | 
|  | Use SCRIPTS to load the on-chip RAM. | 
|  | Use SCRIPTS to repair the start queue on selection timeout. | 
|  | Use the copy of script in main memory to calculate the chip | 
|  | context on phase mismatch. | 
|  | - The above allows now to use the on-chip RAM without requiring | 
|  | to get access to the on-chip RAM from the C code. This makes | 
|  | on-chip RAM useable for linux-1.2.13 and for Linux-Alpha for | 
|  | instance. | 
|  | - Some simplifications and cleanups in the SCRIPTS and C code. | 
|  | - Buglet fixed in parity error recovery SCRIPTS (never tested). | 
|  | - Minor updates in README.ncr53c8xx. | 
|  |  | 
|  | Wed Apr 15 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6j | 
|  | - Incorporate changes from linux-2.1.95 ncr53c8xx driver version. | 
|  | - Add SMP support for linux-2.1.95 and above. | 
|  | - Fix a bug when QUEUE FULL is returned and no commands are | 
|  | disconnected. This happens with Atlas I / L912 and may happen | 
|  | with Atlas II / LXY4. | 
|  | - Nail another one on CHECK condition when requeuing the command | 
|  | for auto-sense. | 
|  | - Call scsi_done() for all completed commands after interrupt | 
|  | handling. | 
|  | - Increase the done queue to 24 entries. | 
|  |  | 
|  | Sat Apr 4 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6i | 
|  | - CTEST0 is used by the 53C885 for Power Management and | 
|  | priority setting between the 2 functions. | 
|  | Use SDID instead as actual target number. Just have had to | 
|  | overwrite it with SSID on reselection. | 
|  | - Split DATA_IN and DATA_OUT scripts into 2 sub-scripts. | 
|  | 64 segments are moved from on-chip RAM scripts. | 
|  | If more segments, a script in main memory is used for the | 
|  | additional segments. | 
|  | - Since the SCRIPTS processor continues SCRIPTS execution after | 
|  | having won arbitration, do some stuff prior to testing any SCSI | 
|  | phase on reselection. This should have the vertue to process | 
|  | scripts in parallel with the SCSI core performing selection. | 
|  | - Increase the done queue to 12 entries. | 
|  |  | 
|  | Sun Mar 29 12:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6h | 
|  | - Some fixes. | 
|  |  | 
|  | Tue Mar 26 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6g | 
|  | - New done queue. 8 entries by default (6 always useable). | 
|  | Can be increased if needed. | 
|  | - Resources management using doubly linked queues. | 
|  | - New auto-sense and QUEUE FULL handling that does not need to | 
|  | stall the NCR queue any more. | 
|  | - New CCB starvation avoiding algorithm. | 
|  | - Prepare CCBs for SCSI commands that cannot be queued, instead of | 
|  | inserting these commands into the waiting list. The waiting list | 
|  | is now only used while resetting and when memory for CCBs is not | 
|  | yet available? | 
|  |  | 
|  | Sun Feb 8 22:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6f | 
|  | - Some fixes in order to really support the 53C895, at least with | 
|  | FAST-20 devices. | 
|  | - Heavy changes in the target/lun resources management to allow | 
|  | the scripts to jump directly to the CCB on reselection instead | 
|  | of walking on the lun CCBs list. Up to 32 tags per lun are now | 
|  | supported without script processor and PCI traffic overhead. | 
|  |  | 
|  | Sun Jan 11 22:00 1998 Gerard Roudier (groudier@club-internet.fr) | 
|  | * revision 2.6d | 
|  | - new (different ?) implementation of the start queue: | 
|  | Use a simple CALL to a launch script in the CCB. | 
|  | - implement a minimal done queue (1 entry :-) ). | 
|  | this avoid scanning all CCBs on INT FLY (Only scan all CCBs, on | 
|  | overflow). Hit ratio is better than 99.9 % on my system, so no | 
|  | need to have a larger done queue. | 
|  | - generalization of the restart of CCB on special condition as | 
|  | Abort, QUEUE FULL, CHECK CONDITION. | 
|  | This has been called 'silly scheduler'. | 
|  | - make all the profiling code conditionned by a config option. | 
|  | This spare some PCI traffic and C code when this feature is not | 
|  | needed. | 
|  | - handle more cleanly the situation where direction is unknown. | 
|  | The pointers patching is now performed by the SCRIPTS processor. | 
|  | - remove some useless scripts instructions. | 
|  |  | 
|  | Ported from driver 2.5 series: | 
|  | ------------------------------ | 
|  | - Use FAST-5 instead of SLOW for slow scsi devices according to | 
|  | new SPI-2 draft. | 
|  | - Make some changes in order to accommodate with 875 rev <= 3 | 
|  | device errata listing 397. Minor consequences are: | 
|  | . Leave use of PCI Write and Invalidate under user control. | 
|  | Now, by default the driver does not enable PCI MWI and option | 
|  | 'specf:y' is required in order to enable this feature. | 
|  | . Memory Read Line is not enabled for 875 and 875-like chips. | 
|  | . Programmed burst length set to 64 DWORDS (instead of 128). | 
|  | (Note: SYMBIOS uses 32 DWORDS for the SDMS BIOS) | 
|  | - Add 'buschk' boot option. | 
|  | This option enables checking of SCSI BUS data lines after SCSI | 
|  | RESET (set by default). (Submitted by Richard Waltham). | 
|  | - Update the README file. | 
|  | - Dispatch CONDITION MET and RESERVATION CONFLICT scsi status | 
|  | as OK driver status. | 
|  | - Update the README file and the Symbios NVRAM format definition | 
|  | with removable media flags values (available with SDMS 4.09). | 
|  | - Several PCI configuration registers fix-ups for powerpc. | 
|  | (Patch sent by Cort). |