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Diffstat (limited to 'kernel/Documentation/scsi/ChangeLog.ncr53c8xx')
| -rw-r--r-- | kernel/Documentation/scsi/ChangeLog.ncr53c8xx | 495 |
1 files changed, 495 insertions, 0 deletions
diff --git a/kernel/Documentation/scsi/ChangeLog.ncr53c8xx b/kernel/Documentation/scsi/ChangeLog.ncr53c8xx new file mode 100644 index 000000000..9288e3d89 --- /dev/null +++ b/kernel/Documentation/scsi/ChangeLog.ncr53c8xx @@ -0,0 +1,495 @@ +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). |