changelog.sym53c8xx

Linux内核源代码 为压缩文件 是<<Linux内核>>一书中的源代码

Thu May 11 12:40 2000 Pam Delaney ([e-mail])
	* version sym53c8xx-1.6b
	- Merged version.

Mon Apr 24 12:00 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5m
	- Return value 1 (instead of 0) from the driver setup routine.
	- Do not enable PCI DAC cycles. This just broke support for 
	  SYM534C896 on sparc64. Problem fixed by David S. Miller.

Fri Apr 14 9:00 2000 Pam Delaney ([e-mail])
	* version sym53c8xx-1.6b-9
	- Added 53C1010_66 support.
	- Small fix to integrity checking code.
	- Removed requirement for integrity checking if want to run
	  at ultra 3.
 
Sat Apr 1  12:00 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5l
	- Tiny change for __sparc__ appeared in 2.3.99-pre4.1 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).

Sat Mar 11 12:00 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.6b-5
	- Test against expected data transfer direction from SCRIPTS.
	- Add support for the new dynamic dma mapping kernel interface.
	  Requires Linux-2.3.47 (tested with pre-2.3.47-6).
	  Many thanks to David S. Miller for his preliminary changes 
	  that have been useful guidelines.
	- Get data transfer direction from the scsi command structure 
	  (Scsi_Cmnd) with kernels that provide this information.

Mon Mar  6 23:30 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5k
	- Test against expected data transfer direction from SCRIPTS.
	- Revert the change in 'ncr_flush_done_cmds()' but unmap the 
	  scsi dma buffer prior to queueing the command to our done 
	  list.
	- Miscellaneous (minor) fixes in the code added in driver 
	  version 1.5j.

Mon Feb 14 4:00 2000 Pam Delaney ([e-mail])
 	* version sym53c8xx-pre-1.6b-2.
	- Updated the SCRIPTS error handling of the SWIDE
	  condition - to remove any reads of the sbdl
	  register. Changes needed because the 896 and 1010
	  chips will check parity in some special circumstances.
	  This will cause a parity error interrupt if not in
	  data phase.  Changes based on those made in the
	  FreeBSD driver version 1.3.2.

Sun Feb 20 11:00 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5j
	- Add support for the new dynamic dma mapping kernel interface.
	  Requires Linux-2.3.47 (tested with pre-2.3.47-6).
	  Many thanks to David S. Miller for his preliminary changes 
	  that have been useful guidelines, for having reviewed the 
	  code and having tested this driver version on Ultra-Sparc.
	- 2 tiny bugs fixed in the PCI wrapper that provides support 
	  for early kernels without pci device structure.
	- Get data transfer direction from the scsi command structure 
	  (Scsi_Cmnd) with kernels that provide this information.
	- Fix an old bug that only affected 896 rev. 1 when driver 
	  profile support option was set in kernel configuration.

Fri Jan 14 14:00 2000 Pam Delaney ([e-mail])
 	* version sym53c8xx-pre-1.6b-1.
	- Merge parallel driver series 1.61 and 1.5e 

Tue Jan 11 14:00 2000 Pam Delaney ([e-mail])
	* version sym53c8xx-1.61
	- Added support for mounting disks on wide-narrow-wide
	  scsi configurations. 
	- Modified offset to be a maximum of 31 in ST mode, 
	  62 in DT mode.
	- Based off of 1.60

Mon Jan 10 10:00 2000 Pam Delaney ([e-mail])
	* version sym53c8xx-1.60
	- Added capability to use the integrity checking code
	  in the kernel (optional).
	-  Added PPR negotiation.
	- Added support for 53C1010 Ultra 3 part.
	- Based off of 1.5f

Sat Jan 8  22:00 2000 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5h
	- Add year 2000 copyright.
	- Display correctly bus signals when bus is detected wrong.
	- Some fix for Sparc from DSM that went directly to kernel tree.

Mon Dec 6  22:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5g
	- 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 PCI device/function).
	- Ensure the SCRIPTS processor is stopped while calibrating the 
	  SCSI clock (the initialisation code has been a bit reworked).
	  Change moved to the FreeBSD sym_hipd driver).
	- Some fixes in the MODIFY_DP/IGN_RESIDUE code and residual 
	  calculation (moved from FreeBSD sym_hipd driver).
	- Add NVRAM support for Tekram boards that use 24C16 EEPROM.
	  Code moved from the FreeBSD sym_hipd driver, since it has 
	  been that one that got this feature first.
	- 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 (also for ncr53c8xx).
	- Fix up properly the PCI latency timer when needed or asked for.
	- Get rid of the old PCI bios interface, but preserve kernel 2.0 
	  compatibility from a simple wrapper.
	- Update the poor Tekram sync factor table.
	- Fix in a tiny 'printk' bug that may oops in case of extended 
	  errors (unrecovered parity error, data overrun, etc ...)
	  (Sent by Pamela Delaney from LSILOGIC)
	- Remove the compilation condition about having to acquire the 
	  io_request_lock since it seems to be a definite feature now.:)
	- Change get_pages by GetPages since Linux >= 2.3.27 now wants 
	  get_pages to ever be used as a kernel symbol (from 2.3.27).
	- proc_dir structure no longer needed for kernel >= 2.3.27.

Sun Oct  3  19:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5f
	- Change the way the driver checks the PCI clock frequency, so 
	  that overclocked PCI BUS up to 48 MHz will not be refused.
	  The more the BUS is overclocked, the less the driver will 
	  guarantee that its measure of the SCSI clock is correct.
	- Backport some minor improvements of SCRIPTS from the sym_hipd 
	  driver.
	- Backport the code rewrite of the START QUEUE dequeuing (on 
	  bad scsi status received) from the sym_hipd driver.

Sat Sep 11  11:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5e
	- New linux-2.3.13 __setup scheme support added.
	- Cleanup of the extended error status handling:
	  Use 1 bit per error type.
	- Also save the extended error status prior to auto-sense.
	- Add the FE_DIFF chip feature bit to indicate support of 
	  diff probing from GPIO3 (825/825A/876/875).
	- Remove the quirk handling that has been useless since day one.
	- Work-around PCI chips being reported twice on some platforms.
	- Add some redundant PCI reads in order to deal with common 
	  bridge misbehaviour regarding posted write flushing.
	- Add some other conditionnal code for people who have to deal 
	  with really broken bridges (they will have to edit a source 
	  file to try these options).
	- 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. ;-)
	- Rewrite the MESSAGE IN scripts more generic by using a MOVE 
	  table indirect. Extended messages of any size are accepted now.
	  (Size is limited to 8 for now, but a constant is just to be 
	  increased if necessary)
	- Fix some bug in the fully untested MDP handling:) and share 
	  some code between MDP handling and residual calculation.
	- Calculate the data transfer residual as the 2's complement 
	  integer (A positive value in returned on data overrun, and 
	  a negative one on underrun).
	- 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 Jun  5  11:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5c
	- Do not negotiate on auto-sense if we are currently using 8 bit 
	  async transfer for the target.
	- Only check for SISL/RAID on i386 platforms.
	  (A problem has been reported on PPC with that code).
	- On MSG REJECT for a negotiation, the driver attempted to restart 
	  the SCRIPT processor when this one was already running.

Sat May 29  12:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5b
	- Force negotiation prior auto-sense.
	  This ensures that the driver will be able to grab the sense data 
	  from a device that has received a BUS DEVICE RESET message from 
	  another initiator.
	- Complete all disconnected CCBs for a logical UNIT if we are told 
	  about a UNIT ATTENTION for a RESET condition by this target.
	- Add the control command 'cleardev' that allows to send a ABORT  
	  message to a logical UNIT (for test purpose).

Tue May 25  23:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5a
	- Add support for task abort and bus device reset SCSI message 
	  and implement proper synchonisation with SCRIPTS to handle 
          correctly task abortion without races.
	- Send an ABORT message (if untagged) or ABORT TAG message (if tagged)
	  when the driver is told to abort a command that is disconnected and 
	  complete the command with appropriate error.
	  If the aborted command is not yet started, remove it from the start 
	  queue and complete it with error.
	- Add the control command 'resetdev' that allows to send a BUS 
	  DEVICE RESET message to a target (for test purpose).
	- Clean-up some unused or useless code.

Fri May 21  23:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.5
	- Add support for CHMOV with Wide controllers.
	- Handling of the SWIDE (low byte residue at the end of a CHMOV 
	  in DATA IN phase with WIDE transfer when the byte count gets odd).
	- Handling of the IGNORE WIDE RESIDUE message.
	  Handled from SCRIPTS as possible with some optimizations when both 
	  a wide device and the controller are odd at the same time (SWIDE 
	  present and IGNORE WIDE RESIDUE message on the BUS at the same time).
	- Check against data OVERRUN/UNDERRUN condition at the end of a data 
	  transfer, whatever a SWIDE is present (OVERRUN in DATA IN phase) 
	  or the SODL is full (UNDERRUN in DATA out phase).
	- Handling of the MODIFY DATA POINTER message.
	  This one cannot be handled from SCRIPTS, but hopefully it will not
	  happen very often. :)
	- Large rewrite of the SCSI MESSAGE handling.

Sun May 9  11:00 1999 Gerard Roudier ([e-mail])
	* version sym53c8xx-1.4
	- Support for IMMEDIATE ARBITRATION.
	  See the README file for detailed information about this feature.
	  Requires both a compile option and a boot option.
	- Minor SCRIPTS optimization in reselection pattern for LUN 0.
	- Simpler algorithm to deal with SCSI command starvation.
	  Just use 2 tag counters in flip/flop and switch to the other 
	  one every 3 seconds.
	- Do some work in SCRIPTS after the SELECT instruction and prior 
	  to testing for a PHASE. SYMBIOS say this feature is working fine. 
	  (Btw, only problems with Toshiba 3401B had been reported).
	- Measure the PCI clock speed and do not attach controllers if 
	  result is greater than 37 MHz. Since the precision of the 
	  algorithm (from Stefan Esser) is better than 2%, this should 
	  be fine.
	- Fix the misdetection of SYM53C875E (was detected as a 876).
	- Fix the misdetection of SYM53C810 not A (was detected as a 810A).
	- Support for up to 256 TAGS per LUN (CMD_PER_LUN).
	  Currently limited to 255 due to Linux limitation. :)
	- Support for up to 508 active commands (CAN_QUEUE).
	- Support for the 53C895A by Pamela Delaney <[e-mail]>