--- /dev/null
+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).
Code Review / kvmfornfv.git / blobdiff