| Sat May 12 12:00 2001 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.3c |
| - Ensure LEDC bit in GPCNTL is cleared when reading the NVRAM. |
| Fix sent by Stig Telfer <stig@api-networks.com>. |
| - Backport from SYM-2 the work-around that allows to support |
| hardwares that fail PCI parity checking. |
| - Check that we received at least 8 bytes of INQUIRY response |
| for byte 7, that contains device capabilities, to be valid. |
| - Define scsi_set_pci_device() as nil for kernel < 2.4.4. |
| - + A couple of minor changes. |
| |
| Sat Apr 7 19:30 2001 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.3b |
| - Fix an unaligned LOAD from scripts (was used as dummy read). |
| - In ncr_soft_reset(), only try to ABORT the current operation |
| for chips that support SRUN bit in ISTAT1 and if SCRIPTS are |
| currently running, as 896 and 1010 manuals suggest. |
| - In the CCB abort path, do not assume that the CCB is currently |
| queued to SCRIPTS. This is not always true, notably after a |
| QUEUE FULL status or when using untagged commands. |
| |
| Sun Mar 4 18:30 2001 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.3a |
| - Fix an issue in the ncr_int_udc() (unexpected disconnect) |
| handling. If the DSA didn't match a CCB, a bad write to |
| memory could happen. |
| |
| Mon Feb 12 22:30 2001 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.3 |
| - Support for hppa. |
| Tiny patch sent to me by Robert Hirst. |
| - Tiny patch for ia64 sent to me by Pamela Delaney. |
| |
| Tue Feb 6 13:30 2001 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.3-pre1 |
| - Call pci_enable_device() as AC wants this to be done. |
| - Get both the BAR cookies used by CPU and actual PCI BAR |
| values used from SCRIPTS. Recent PCI chips are able to |
| access themselves using internal cycles, but they compare |
| BAR values to destination address to make decision. |
| Earlier chips simply use PCI transactions to access IO |
| registers from SCRIPTS. |
| The bus_dvma_to_mem() interface that reverses the actual |
| PCI BAR value from the BAR cookie is now useless. |
| This point had been discussed at the list and the solution |
| got approved by PCI code maintainer (Martin Mares). |
| - 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. |
| - Increase SCSI message size up to 12 bytes, given that 8 |
| bytes was not enough for the PPR message (fix). |
| - Add field 'maxoffs_st' (max offset for ST data transfers). |
| The C1010 supports offset 62 in DT mode but only 31 in |
| ST mode, to 2 different values for the max SCSI offset |
| are needed. Replace the obviously wrong masking of the |
| offset against 0x1f for ST mode by a lowering to |
| maxoffs_st of the SCSI offset in ST mode. |
| - Refine a work-around for the C1010-66. Revision 1 does |
| not requires extra cycles in DT DATA OUT phase. |
| - Add a missing endian-ization (abrt_tbl.addr). |
| - Minor clean-up in the np structure for fields accessed |
| from SCRIPTS that requires special alignments. |
| |
| Sun Sep 24 21:30 2000 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.2 |
| - Remove the hack for PPC added in previous driver version. |
| - Add FE_DAC feature bit to distinguish between 64 bit PCI |
| addressing (FE_DAC) and 64 bit PCI interface (FE_64BIT). |
| - Get rid of the boot command line "ultra:" argument. |
| This parameter wasn't that clever since we can use "sync:" |
| for Ultra/Ultra2 settings, and for Ultra3 we may want to |
| pass PPR options (for now only DT clocking). |
| - Add FE_VARCLK feature bit that indicates that SCSI clock |
| frequency may vary depending on board design and thus, |
| the driver should try to evaluate the SCSI clock. |
| - Simplify the way the driver determine the SCSI clock: |
| ULTRA3 -> 160 MHz, ULTRA2 -> 80 MHz otherwise 40 MHz. |
| Measure the SCSI clock frequency if FE_VARCLK is set. |
| - Remove FE_CLK80 feature bit that got useless. |
| - Add support for the SYM53C875A (Pamela Delaney). |
| |
| Wed Jul 26 23:30 2000 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.1 |
| - Provide OpenFirmware path through the proc FS on PPC. |
| - Download of on-chip SRAM using memcpy_toio() doesn't work |
| on PPC. Restore previous method (MEMORY MOVE from SCRIPTS). |
| - Remove trailing argument #2 from a couple of #undefs. |
| |
| Sun Jul 09 16:30 2000 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.7.0 |
| - 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. |
| * Simpler handling of illegal phases and data overrun from |
| SCRIPTS. These errors are now immediately reported to |
| the C code by an interrupt. |
| * Sync the residual handling code with sym-1.6.2 and now |
| report `resid' to user for linux version >= 2.3.99 |
| - 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. |
| Remove unused options that claimed to optimize for the 896. |
| If fact, they were not this clever. :) |
| Use SCSI_NCR_IOMAPPED instead of NCR_IOMAPPED. |
| Remove a couple of unused fields from data structures. |
| |
| Thu May 11 12:40 2000 Pam Delaney (pam.delaney@lsil.com) |
| * version sym53c8xx-1.6b |
| - Merged version. |
| |
| Mon Apr 24 12:00 2000 Gerard Roudier (groudier@club-internet.fr) |
| * 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 (pam.delaney@lsil.com) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (pam.delaney@lsil.com) |
| * 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 (groudier@club-internet.fr) |
| * 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 (pam.delaney@lsil.com) |
| * version sym53c8xx-pre-1.6b-1. |
| - Merge parallel driver series 1.61 and 1.5e |
| |
| Tue Jan 11 14:00 2000 Pam Delaney (pam.delaney@lsil.com) |
| * 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 (pam.delaney@lsil.com) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 (groudier@club-internet.fr) |
| * 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 <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. |
| |
| Tue Apr 15 10:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.3e |
| - Support for any number of LUNs (64) (SPI2-compliant). |
| (Btw, this may only be ever useful under linux-2.2 ;-)) |
| |
| Sun Apr 11 10:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.3d |
| - Add 'hostid:#id' boot option. This option allows to change the |
| default SCSI id the driver uses for controllers. |
| - Make SCRIPTS not use self-mastering for PCI. |
| There were still 2 places the driver used this feature of the |
| 53C8XX family. |
| - Move some data structures (nvram layouts and driver set-up) to |
| the sym53c8xx_defs.h file. So, the both drivers will share them. |
| - Set MAX LUNS to 16 (instead of 8). |
| |
| Sat Mar 20 21:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.3b |
| - Add support for NCR PQS PDS. |
| James Bottomley <James.Bottomley@columbiasc.ncr.com> |
| - Allow value 0 for host ID. |
| - Support more than 8 controllers (> 40 in fact :-) ) |
| - Add 'excl=#ioaddr' boot option: exclude controller. |
| (Version 1.3a driver) |
| |
| Thu Mar 11 23:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.3 (8xx-896 driver bundle) |
| - Equivalent changes as ncr53c8xx-3.2 due to the driver bundle. |
| (See Changelog.ncr53c8xx) |
| - Do a normal soft reset as first chip reset, since aborting current |
| operation may raise an interrupt we are not able to handle since |
| the interrupt handler is not yet established. |
| |
| Sat Mar 6 11:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.2b |
| - 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 21 20:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.2a |
| - The rewrite of the interrupt handling broke the SBMC interrupt |
| handling due to a 1 bit mask tiny error. Hopefully fixed. |
| - If INQUIRY came from a scatter list, the driver looked into |
| the scatterlist instead of the data.:) Since this should never |
| happen, we just discard the data if use_sg is not zero. |
| |
| Fri Feb 12 23:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.2 |
| - Major rewrite of the interrupt handling and recovery stuff for |
| the support of non compliant SCSI removal, insertion and all |
| kinds of screw-up that may happen on the SCSI BUS. |
| Hopefully, the driver is now unbreakable or may-be, it is just |
| quite brocken. :-) |
| Many thanks to Johnson Russel (Symbios) for having responded to |
| my questions and for his interesting advices and comments about |
| support of SCSI hot-plug. |
| - Add 'recovery' option to driver set-up. |
| - Negotiate SYNC data transfers with CCS devices. |
| - Deal correctly with 64 bit PCI address registers on Linux 2.2. |
| Pointed out by Leonard Zubkoff. |
| |
| Sun Jan 31 18:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.1a |
| - Some 896 chip revisions (all for now :-)), may hang-up if the |
| soft reset bit is set at the wrong time while SCRIPTS are running. |
| We need to first abort the current SCRIPTS operation prior to |
| resetting the chip. This fix has been sent to me by SYMBIOS/LSI |
| and I just translated it into ncr53c8xx syntax. |
| Must be considered 100 % trustable, unless I did some mistake |
| when translating it. :-) |
| |
| Sun Jan 24 18:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.1 |
| - Major rewrite of the SCSI parity error handling. |
| The informations contained in the data manuals are incomplete about |
| this feature. |
| I asked SYMBIOS about and got in reply the explanations that are |
| _indeed_ missing in the data manuals. |
| - Allow to tune request_irq() flags from the boot command line using |
| ncr53c8xx=irqm:??, as follows: |
| a) If bit 0x10 is set in irqm, SA_SHIRQ flag is not used. |
| b) If bit 0x20 is set in irqm, SA_INTERRUPT flag is not used. |
| By default the driver uses both SA_SHIRQ and SA_INTERRUPT. |
| Option 'ncr53c8xx=irqm:0x20' may be used when an IRQ is shared by |
| a 53C8XX adapter and a network board. |
| - Fix for 64 bit PCI address register calculation. (Lance Robinson) |
| - Fix for big-endian in phase mismatch handling. (Michal Jaegermann) |
| |
| Fri Jan 1 20:00 1999 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.0a |
| - Waiting list look-up didn't work for the first command of the list. |
| Hopefully fixed, but tested on paper only. ;) |
| - Remove the most part of PPC specific code for Linux-2.2. |
| Thanks to Cort. |
| - Some other minors changes. |
| |
| Sat Dec 19 21:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version sym53c8xx-1.0 |
| - Define some new IO registers for the 896 (istat1, mbox0, mbox1) |
| - Revamp slightly the Symbios NVRAM lay-out based on the excerpt of |
| the header file I received from Symbios. |
| - Check the PCI bus number for the boot order (Using a fast |
| PCI controller behing a PCI-PCI bridge seems sub-optimal). |
| - Disable overlapped PCI arbitration for the 896 revision 1. |
| - Reduce a bit the number of IO register reads for phase mismatch |
| by reading DWORDS at a time instead of BYTES. |
| |
| Thu Dec 3 24:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.18 |
| - I received this afternoon a 896 from SYMBIOS and started testing |
| the driver with this beast. After having fixed 3 buglets, it worked |
| with all features enabled including the phase mismatch handling |
| from SCRIPTS. Since this feature is not yet tested enough, the |
| boot option 'ncr53c8xx=specf:1' is still required to enable the |
| driver to handle PM from SCRIPTS. |
| |
| Sun Nov 29 18:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.17 |
| - The SISL RAID change requires now remap_pci_mem() stuff to be |
| compiled for __i386__ when normal IOs are used. |
| - The PCI memory read from SCRIPTS that should ensure ordering |
| was in fact misplaced. BTW, this may explain why broken PCI |
| device drivers regarding ordering are working so well. ;-) |
| - Rewrite ncr53c8xx_setup (boot command line options) since the |
| binary code was a bit too bloated in my opinion. |
| - Make the code simpler in the wakeup_done routine. |
| |
| Tue Nov 24 23:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.16 |
| - Add SCSI_NCR_OPTIMIZE_896_1 compile option and 'optim' boot option. |
| When set, the driver unconditionnaly assumes that the interrupt |
| handler is called for command completion, then clears INTF, scans |
| the done queue and returns if some completed CCB is found. If no |
| completed CCB are found, interrupt handling will proceed normally. |
| With a 896 that handles MA from SCRIPTS, this can be a great win, |
| since the driver will never performs PCI read transactions, but |
| only PCI write transactions that may be posted. |
| If the driver haven't to also raise the SIGP this would be perfect. |
| Even with this penalty, I think that this will work great. |
| Obviously this optimization makes sense only if the IRQ is not |
| shared with another device. |
| - 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. |
| |
| Thu Nov 19 23:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.15 |
| - Add support for hardware LED control of the 896. |
| - Ignore chips that are driven by SISL RAID (DAC 960). |
| Change sent by Leonard Zubkoff and slightly reworked. |
| - Prevent 810A rev 11 and 860 rev 1 from using cache line based |
| transactions since those early chip revisions may use such on |
| LOAD/STORE instructions (work-around). |
| - Remove some useless and bloat code from the pci init stuff. |
| - Do not use the readX()/writeX() kernel functions for __i386__, |
| since they perform useless masking operations in order to deal |
| with broken driver in 2.1.X kernel. |
| |
| Wed Nov 11 10:00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.14 |
| - The driver was unhappy when configured with default_tags > MAX_TAGS |
| Hopefully doubly-fixed. |
| - Set PCI_PARITY in PCI_COMMAND register in not set (PCI fix-up). |
| - Print out some message if phase mismatch is handled from SCRIPTS. |
| |
| Sun Nov 1 14H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.13 |
| - Some rewrite of the device detection code. This code had been |
| patched too much and needed to be face-lifted a bit. |
| Remove all platform dependent fix-ups that was not needed or |
| conflicted with some other driver code as work-arounds. |
| Reread the NVRAM before the calling of ncr_attach(). This spares |
| stack space and so allows to handle more boards. |
| Handle 64 bit base addresses under linux-2.0.X. |
| Set MASTER bit in PCI COMMAND register if not set. |
| |
| Wed Oct 30 22H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.12 |
| - Damned! I just broke the driver for Alpha by leaving a stale |
| instruction in the source code. Hopefully fixed. |
| - Do not set PFEN when it is useless. Doing so we are sure that BOF |
| will be active, since the manual appears to be very unclear on what |
| feature is actually used by the chip when both PFEN and BOF are |
| set. |
| |
| Sat Oct 24 16H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.11 |
| - LOAD/STORE instructions were miscompiled for register offsets |
| beyond 0x7f. This broke accesses to 896' new registers. |
| - Disable by default Phase Mismatch handling from SCRIPTS, since |
| current 896 rev.1 seems not to operate safely with the driver |
| when this feature is enabled (and above LOAD/STORE fix applied). |
| I will change the default to 'enabled' when this problem will be |
| solved. |
| Using boot option 'ncr53c8xx=specf:1' enables this feature. |
| - Implement a work-around (DEL 472 - ITEM 5) that should allow the |
| driver to safely enable hardware phase mismatch with 896 rev. 1. |
| |
| Tue Oct 20 22H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.10 |
| - Add the 53c876 description to the chip table. This is only useful |
| for printing the right name of the controller. |
| - 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. |
| - 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. |
| - Use NAME53C and NAME53C8XX for chip name prefix chip family name. |
| Just give a try using "sym53c" and "sym53c8xx" instead of "ncr53c" |
| and "ncr53c8xx". :-) |
| |
| Sun Oct 11 17H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.9 |
| - DEL-441 Item 2 work-around for the 53c876 rev <= 5 (0x15). |
| - Break ncr_scatter() into 2 functions in order to guarantee best |
| possible code optimization for the case we get a scatter list. |
| - Add the code intended to support up to 1 tera-byte for 64 bit systems. |
| It is probably too early, but I wanted to complete the thing. |
| |
| Sat Oct 3 14H00 1998 Gerard Roudier (groudier@club-internet.fr) |
| * version pre-sym53c8xx-0.8 |
| - Do some testing with io_mapped and fix what needed to be so. |
| - Wait for SCSI selection to complete or time-out immediately after |
| the chip won arbitration, since executing SCRIPTS while the SCSI |
| core is performing SCSI selection breaks the selection procedure |
| at least for some chip revisions. |
| - Interrupt the SCRIPTS if a device does not go to MSG OUT phase after |
| having been selected with ATN. Such a situation is not recoverable, |
| better to fail when we are stuck. |
