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593 lines
29 KiB
593 lines
29 KiB
Sat May 12 12:00 2001 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.3c |
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- Ensure LEDC bit in GPCNTL is cleared when reading the NVRAM. |
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Fix sent by Stig Telfer <[email protected]>. |
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- Backport from SYM-2 the work-around that allows to support |
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hardwares that fail PCI parity checking. |
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- Check that we received at least 8 bytes of INQUIRY response |
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for byte 7, that contains device capabilities, to be valid. |
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- Define scsi_set_pci_device() as nil for kernel < 2.4.4. |
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- + A couple of minor changes. |
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|
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Sat Apr 7 19:30 2001 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.3b |
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- Fix an unaligned LOAD from scripts (was used as dummy read). |
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- In ncr_soft_reset(), only try to ABORT the current operation |
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for chips that support SRUN bit in ISTAT1 and if SCRIPTS are |
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currently running, as 896 and 1010 manuals suggest. |
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- In the CCB abort path, do not assume that the CCB is currently |
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queued to SCRIPTS. This is not always true, notably after a |
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QUEUE FULL status or when using untagged commands. |
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|
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Sun Mar 4 18:30 2001 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.3a |
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- Fix an issue in the ncr_int_udc() (unexpected disconnect) |
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handling. If the DSA didn't match a CCB, a bad write to |
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memory could happen. |
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Mon Feb 12 22:30 2001 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.3 |
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- Support for hppa. |
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Tiny patch sent to me by Robert Hirst. |
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- Tiny patch for ia64 sent to me by Pamela Delaney. |
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Tue Feb 6 13:30 2001 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.3-pre1 |
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- Call pci_enable_device() as AC wants this to be done. |
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- Get both the BAR cookies used by CPU and actual PCI BAR |
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values used from SCRIPTS. Recent PCI chips are able to |
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access themselves using internal cycles, but they compare |
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BAR values to destination address to make decision. |
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Earlier chips simply use PCI transactions to access IO |
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registers from SCRIPTS. |
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The bus_dvma_to_mem() interface that reverses the actual |
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PCI BAR value from the BAR cookie is now useless. |
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This point had been discussed at the list and the solution |
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got approved by PCI code maintainer (Martin Mares). |
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- Merge changes for linux-2.4 that declare the host template |
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in the driver object also when the driver is statically |
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linked with the kernel. |
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- Increase SCSI message size up to 12 bytes, given that 8 |
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bytes was not enough for the PPR message (fix). |
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- Add field 'maxoffs_st' (max offset for ST data transfers). |
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The C1010 supports offset 62 in DT mode but only 31 in |
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ST mode, to 2 different values for the max SCSI offset |
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are needed. Replace the obviously wrong masking of the |
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offset against 0x1f for ST mode by a lowering to |
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maxoffs_st of the SCSI offset in ST mode. |
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- Refine a work-around for the C1010-66. Revision 1 does |
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not requires extra cycles in DT DATA OUT phase. |
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- Add a missing endian-ization (abrt_tbl.addr). |
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- Minor clean-up in the np structure for fields accessed |
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from SCRIPTS that requires special alignments. |
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Sun Sep 24 21:30 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.2 |
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- Remove the hack for PPC added in previous driver version. |
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- Add FE_DAC feature bit to distinguish between 64 bit PCI |
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addressing (FE_DAC) and 64 bit PCI interface (FE_64BIT). |
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- Get rid of the boot command line "ultra:" argument. |
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This parameter wasn't that clever since we can use "sync:" |
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for Ultra/Ultra2 settings, and for Ultra3 we may want to |
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pass PPR options (for now only DT clocking). |
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- Add FE_VARCLK feature bit that indicates that SCSI clock |
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frequency may vary depending on board design and thus, |
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the driver should try to evaluate the SCSI clock. |
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- Simplify the way the driver determine the SCSI clock: |
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ULTRA3 -> 160 MHz, ULTRA2 -> 80 MHz otherwise 40 MHz. |
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Measure the SCSI clock frequency if FE_VARCLK is set. |
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- Remove FE_CLK80 feature bit that got useless. |
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- Add support for the SYM53C875A (Pamela Delaney). |
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Wed Jul 26 23:30 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.1 |
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- Provide OpenFirmware path through the proc FS on PPC. |
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- Download of on-chip SRAM using memcpy_toio() doesn't work |
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on PPC. Restore previous method (MEMORY MOVE from SCRIPTS). |
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- Remove trailing argument #2 from a couple of #undefs. |
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Sun Jul 09 16:30 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.7.0 |
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- Remove the PROFILE C and SCRIPTS code. |
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This facility was not this useful and thus was not longer |
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desirable given the increasing complexity of the driver code. |
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- Merges from FreeBSD sym-1.6.2 driver: |
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* Clarify memory barriers needed by the driver for architectures |
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that implement a weak memory ordering. |
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* Simpler handling of illegal phases and data overrun from |
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SCRIPTS. These errors are now immediately reported to |
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the C code by an interrupt. |
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* Sync the residual handling code with sym-1.6.2 and now |
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report `resid' to user for linux version >= 2.3.99 |
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- General cleanup: |
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Move definitions for barriers and IO/MMIO operations to the |
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sym53c8xx_defs.h header files. They are now shared by the |
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both drivers. |
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Remove unused options that claimed to optimize for the 896. |
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If fact, they were not this clever. :) |
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Use SCSI_NCR_IOMAPPED instead of NCR_IOMAPPED. |
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Remove a couple of unused fields from data structures. |
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Thu May 11 12:40 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-1.6b |
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- Merged version. |
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Mon Apr 24 12:00 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5m |
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- Return value 1 (instead of 0) from the driver setup routine. |
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- Do not enable PCI DAC cycles. This just broke support for |
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SYM534C896 on sparc64. Problem fixed by David S. Miller. |
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Fri Apr 14 9:00 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-1.6b-9 |
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- Added 53C1010_66 support. |
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- Small fix to integrity checking code. |
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- Removed requirement for integrity checking if want to run |
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at ultra 3. |
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Sat Apr 1 12:00 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5l |
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- Tiny change for __sparc__ appeared in 2.3.99-pre4.1 that |
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applies to cache line size (? Probably from David S Miller). |
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- Make sure no data transfer will happen for Scsi_Cmnd requests |
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that supply SCSI_DATA_NONE direction (this avoids some BUG() |
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statement in the PCI code when a data buffer is also supplied). |
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Sat Mar 11 12:00 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.6b-5 |
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- Test against expected data transfer direction from SCRIPTS. |
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- Add support for the new dynamic dma mapping kernel interface. |
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Requires Linux-2.3.47 (tested with pre-2.3.47-6). |
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Many thanks to David S. Miller for his preliminary changes |
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that have been useful guidelines. |
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- Get data transfer direction from the scsi command structure |
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(Scsi_Cmnd) with kernels that provide this information. |
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Mon Mar 6 23:30 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5k |
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- Test against expected data transfer direction from SCRIPTS. |
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- Revert the change in 'ncr_flush_done_cmds()' but unmap the |
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scsi dma buffer prior to queueing the command to our done |
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list. |
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- Miscellaneous (minor) fixes in the code added in driver |
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version 1.5j. |
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Mon Feb 14 4:00 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-pre-1.6b-2. |
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- Updated the SCRIPTS error handling of the SWIDE |
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condition - to remove any reads of the sbdl |
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register. Changes needed because the 896 and 1010 |
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chips will check parity in some special circumstances. |
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This will cause a parity error interrupt if not in |
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data phase. Changes based on those made in the |
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FreeBSD driver version 1.3.2. |
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Sun Feb 20 11:00 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5j |
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- Add support for the new dynamic dma mapping kernel interface. |
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Requires Linux-2.3.47 (tested with pre-2.3.47-6). |
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Many thanks to David S. Miller for his preliminary changes |
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that have been useful guidelines, for having reviewed the |
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code and having tested this driver version on Ultra-Sparc. |
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- 2 tiny bugs fixed in the PCI wrapper that provides support |
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for early kernels without pci device structure. |
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- Get data transfer direction from the scsi command structure |
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(Scsi_Cmnd) with kernels that provide this information. |
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- Fix an old bug that only affected 896 rev. 1 when driver |
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profile support option was set in kernel configuration. |
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Fri Jan 14 14:00 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-pre-1.6b-1. |
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- Merge parallel driver series 1.61 and 1.5e |
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Tue Jan 11 14:00 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-1.61 |
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- Added support for mounting disks on wide-narrow-wide |
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scsi configurations. |
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- Modified offset to be a maximum of 31 in ST mode, |
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62 in DT mode. |
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- Based off of 1.60 |
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Mon Jan 10 10:00 2000 Pam Delaney ([email protected]) |
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* version sym53c8xx-1.60 |
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- Added capability to use the integrity checking code |
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in the kernel (optional). |
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- Added PPR negotiation. |
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- Added support for 53C1010 Ultra 3 part. |
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- Based off of 1.5f |
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Sat Jan 8 22:00 2000 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5h |
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- Add year 2000 copyright. |
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- Display correctly bus signals when bus is detected wrong. |
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- Some fix for Sparc from DSM that went directly to kernel tree. |
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Mon Dec 6 22:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5g |
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- Change messages written by the driver at initialisation and |
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through the /proc FS (rather cosmetic changes that consist in |
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printing out the PCI bus number and PCI device/function). |
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- Ensure the SCRIPTS processor is stopped while calibrating the |
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SCSI clock (the initialisation code has been a bit reworked). |
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Change moved to the FreeBSD sym_hipd driver). |
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- Some fixes in the MODIFY_DP/IGN_RESIDUE code and residual |
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calculation (moved from FreeBSD sym_hipd driver). |
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- Add NVRAM support for Tekram boards that use 24C16 EEPROM. |
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Code moved from the FreeBSD sym_hipd driver, since it has |
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been that one that got this feature first. |
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- Definitely disable overlapped PCI arbitration for all dual |
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function chips, since I cannot make sure for what chip revisions |
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it is actually safe. |
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- Add support for the SYM53C1510D (also for ncr53c8xx). |
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- Fix up properly the PCI latency timer when needed or asked for. |
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- Get rid of the old PCI bios interface, but preserve kernel 2.0 |
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compatibility from a simple wrapper. |
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- Update the poor Tekram sync factor table. |
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- Fix in a tiny 'printk' bug that may oops in case of extended |
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errors (unrecovered parity error, data overrun, etc ...) |
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(Sent by Pamela Delaney from LSILOGIC) |
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- Remove the compilation condition about having to acquire the |
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io_request_lock since it seems to be a definite feature now.:) |
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- Change get_pages by GetPages since Linux >= 2.3.27 now wants |
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get_pages to ever be used as a kernel symbol (from 2.3.27). |
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- proc_dir structure no longer needed for kernel >= 2.3.27. |
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Sun Oct 3 19:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5f |
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- Change the way the driver checks the PCI clock frequency, so |
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that overclocked PCI BUS up to 48 MHz will not be refused. |
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The more the BUS is overclocked, the less the driver will |
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guarantee that its measure of the SCSI clock is correct. |
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- Backport some minor improvements of SCRIPTS from the sym_hipd |
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driver. |
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- Backport the code rewrite of the START QUEUE dequeuing (on |
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bad scsi status received) from the sym_hipd driver. |
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Sat Sep 11 11:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5e |
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- New linux-2.3.13 __setup scheme support added. |
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- Cleanup of the extended error status handling: |
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Use 1 bit per error type. |
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- Also save the extended error status prior to auto-sense. |
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- Add the FE_DIFF chip feature bit to indicate support of |
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diff probing from GPIO3 (825/825A/876/875). |
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- Remove the quirk handling that has been useless since day one. |
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- Work-around PCI chips being reported twice on some platforms. |
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- Add some redundant PCI reads in order to deal with common |
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bridge misbehaviour regarding posted write flushing. |
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- Add some other conditionnal code for people who have to deal |
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with really broken bridges (they will have to edit a source |
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file to try these options). |
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- Handle correctly (hopefully) jiffies wrap-around. |
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- Restore the entry used to detect 875 until revision 0xff. |
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(I removed it inadvertently, it seems :) ) |
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- Replace __initfunc() which is deprecated stuff by __init which |
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is not yet so. ;-) |
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- Rewrite the MESSAGE IN scripts more generic by using a MOVE |
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table indirect. Extended messages of any size are accepted now. |
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(Size is limited to 8 for now, but a constant is just to be |
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increased if necessary) |
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- Fix some bug in the fully untested MDP handling:) and share |
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some code between MDP handling and residual calculation. |
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- Calculate the data transfer residual as the 2's complement |
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integer (A positive value in returned on data overrun, and |
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a negative one on underrun). |
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- Add support of some 'resource handling' for linux-2.3.13. |
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Basically the BARs have been changed to something more complex |
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in the pci_dev structure. |
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- Remove some deprecated code. |
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Sat Jun 5 11:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5c |
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- Do not negotiate on auto-sense if we are currently using 8 bit |
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async transfer for the target. |
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- Only check for SISL/RAID on i386 platforms. |
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(A problem has been reported on PPC with that code). |
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- On MSG REJECT for a negotiation, the driver attempted to restart |
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the SCRIPT processor when this one was already running. |
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Sat May 29 12:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5b |
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- Force negotiation prior auto-sense. |
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This ensures that the driver will be able to grab the sense data |
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from a device that has received a BUS DEVICE RESET message from |
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another initiator. |
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- Complete all disconnected CCBs for a logical UNIT if we are told |
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about a UNIT ATTENTION for a RESET condition by this target. |
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- Add the control command 'cleardev' that allows to send a ABORT |
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message to a logical UNIT (for test purpose). |
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Tue May 25 23:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5a |
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- Add support for task abort and bus device reset SCSI message |
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and implement proper synchonisation with SCRIPTS to handle |
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correctly task abortion without races. |
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- Send an ABORT message (if untagged) or ABORT TAG message (if tagged) |
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when the driver is told to abort a command that is disconnected and |
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complete the command with appropriate error. |
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If the aborted command is not yet started, remove it from the start |
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queue and complete it with error. |
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- Add the control command 'resetdev' that allows to send a BUS |
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DEVICE RESET message to a target (for test purpose). |
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- Clean-up some unused or useless code. |
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Fri May 21 23:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.5 |
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- Add support for CHMOV with Wide controllers. |
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- Handling of the SWIDE (low byte residue at the end of a CHMOV |
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in DATA IN phase with WIDE transfer when the byte count gets odd). |
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- Handling of the IGNORE WIDE RESIDUE message. |
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Handled from SCRIPTS as possible with some optimizations when both |
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a wide device and the controller are odd at the same time (SWIDE |
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present and IGNORE WIDE RESIDUE message on the BUS at the same time). |
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- Check against data OVERRUN/UNDERRUN condition at the end of a data |
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transfer, whatever a SWIDE is present (OVERRUN in DATA IN phase) |
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or the SODL is full (UNDERRUN in DATA out phase). |
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- Handling of the MODIFY DATA POINTER message. |
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This one cannot be handled from SCRIPTS, but hopefully it will not |
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happen very often. :) |
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- Large rewrite of the SCSI MESSAGE handling. |
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Sun May 9 11:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.4 |
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- Support for IMMEDIATE ARBITRATION. |
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See the README file for detailed information about this feature. |
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Requires both a compile option and a boot option. |
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- Minor SCRIPTS optimization in reselection pattern for LUN 0. |
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- Simpler algorithm to deal with SCSI command starvation. |
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Just use 2 tag counters in flip/flop and switch to the other |
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one every 3 seconds. |
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- Do some work in SCRIPTS after the SELECT instruction and prior |
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to testing for a PHASE. SYMBIOS say this feature is working fine. |
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(Btw, only problems with Toshiba 3401B had been reported). |
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- Measure the PCI clock speed and do not attach controllers if |
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result is greater than 37 MHz. Since the precision of the |
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algorithm (from Stefan Esser) is better than 2%, this should |
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be fine. |
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- Fix the misdetection of SYM53C875E (was detected as a 876). |
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- Fix the misdetection of SYM53C810 not A (was detected as a 810A). |
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- Support for up to 256 TAGS per LUN (CMD_PER_LUN). |
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Currently limited to 255 due to Linux limitation. :) |
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- Support for up to 508 active commands (CAN_QUEUE). |
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- Support for the 53C895A by Pamela Delaney <[email protected]> |
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The 53C895A contains all of the features of the 896 but has only |
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one channel and has a 32 bit PCI bus. It does 64 bit PCI addressing |
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using dual cycle PCI data transfers. |
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- Miscellaneous minor fixes. |
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- Some additions to the README.ncr53c8xx file. |
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Tue Apr 15 10:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.3e |
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- Support for any number of LUNs (64) (SPI2-compliant). |
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(Btw, this may only be ever useful under linux-2.2 ;-)) |
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|
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Sun Apr 11 10:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.3d |
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- Add 'hostid:#id' boot option. This option allows to change the |
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default SCSI id the driver uses for controllers. |
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- Make SCRIPTS not use self-mastering for PCI. |
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There were still 2 places the driver used this feature of the |
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53C8XX family. |
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- Move some data structures (nvram layouts and driver set-up) to |
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the sym53c8xx_defs.h file. So, the both drivers will share them. |
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- Set MAX LUNS to 16 (instead of 8). |
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|
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Sat Mar 20 21:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.3b |
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- Add support for NCR PQS PDS. |
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James Bottomley <[email protected]> |
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- Allow value 0 for host ID. |
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- Support more than 8 controllers (> 40 in fact :-) ) |
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- Add 'excl=#ioaddr' boot option: exclude controller. |
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(Version 1.3a driver) |
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|
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Thu Mar 11 23:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.3 (8xx-896 driver bundle) |
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- Equivalent changes as ncr53c8xx-3.2 due to the driver bundle. |
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(See Changelog.ncr53c8xx) |
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- Do a normal soft reset as first chip reset, since aborting current |
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operation may raise an interrupt we are not able to handle since |
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the interrupt handler is not yet established. |
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|
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Sat Mar 6 11:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.2b |
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- Fix some oooold bug that hangs the bus if a device rejects a |
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negotiation. Btw, the corresponding stuff also needed some cleanup |
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and thus the change is a bit larger than it could have been. |
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- Still some typo that made compilation fail for 64 bit (trivial fix). |
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Sun Feb 21 20:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.2a |
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- The rewrite of the interrupt handling broke the SBMC interrupt |
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handling due to a 1 bit mask tiny error. Hopefully fixed. |
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- If INQUIRY came from a scatter list, the driver looked into |
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the scatterlist instead of the data.:) Since this should never |
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happen, we just discard the data if use_sg is not zero. |
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Fri Feb 12 23:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.2 |
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- Major rewrite of the interrupt handling and recovery stuff for |
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the support of non compliant SCSI removal, insertion and all |
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kinds of screw-up that may happen on the SCSI BUS. |
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Hopefully, the driver is now unbreakable or may-be, it is just |
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quite brocken. :-) |
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Many thanks to Johnson Russel (Symbios) for having responded to |
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my questions and for his interesting advices and comments about |
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support of SCSI hot-plug. |
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- Add 'recovery' option to driver set-up. |
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- Negotiate SYNC data transfers with CCS devices. |
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- Deal correctly with 64 bit PCI address registers on Linux 2.2. |
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Pointed out by Leonard Zubkoff. |
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|
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Sun Jan 31 18:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.1a |
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- Some 896 chip revisions (all for now :-)), may hang-up if the |
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soft reset bit is set at the wrong time while SCRIPTS are running. |
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We need to first abort the current SCRIPTS operation prior to |
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resetting the chip. This fix has been sent to me by SYMBIOS/LSI |
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and I just translated it into ncr53c8xx syntax. |
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Must be considered 100 % trustable, unless I did some mistake |
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when translating it. :-) |
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|
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Sun Jan 24 18:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.1 |
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- Major rewrite of the SCSI parity error handling. |
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The informations contained in the data manuals are incomplete about |
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this feature. |
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I asked SYMBIOS about and got in reply the explanations that are |
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_indeed_ missing in the data manuals. |
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- Allow to tune request_irq() flags from the boot command line using |
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ncr53c8xx=irqm:??, as follows: |
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a) If bit 0x10 is set in irqm, SA_SHIRQ flag is not used. |
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b) If bit 0x20 is set in irqm, SA_INTERRUPT flag is not used. |
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By default the driver uses both SA_SHIRQ and SA_INTERRUPT. |
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Option 'ncr53c8xx=irqm:0x20' may be used when an IRQ is shared by |
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a 53C8XX adapter and a network board. |
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- Fix for 64 bit PCI address register calculation. (Lance Robinson) |
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- Fix for big-endian in phase mismatch handling. (Michal Jaegermann) |
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Fri Jan 1 20:00 1999 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.0a |
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- Waiting list look-up didn't work for the first command of the list. |
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Hopefully fixed, but tested on paper only. ;) |
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- Remove the most part of PPC specific code for Linux-2.2. |
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Thanks to Cort. |
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- Some other minors changes. |
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Sat Dec 19 21:00 1998 Gerard Roudier ([email protected]) |
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* version sym53c8xx-1.0 |
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- Define some new IO registers for the 896 (istat1, mbox0, mbox1) |
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- Revamp slightly the Symbios NVRAM lay-out based on the excerpt of |
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the header file I received from Symbios. |
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- Check the PCI bus number for the boot order (Using a fast |
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PCI controller behing a PCI-PCI bridge seems sub-optimal). |
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- Disable overlapped PCI arbitration for the 896 revision 1. |
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- Reduce a bit the number of IO register reads for phase mismatch |
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by reading DWORDS at a time instead of BYTES. |
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Thu Dec 3 24:00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.18 |
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- I received this afternoon a 896 from SYMBIOS and started testing |
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the driver with this beast. After having fixed 3 buglets, it worked |
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with all features enabled including the phase mismatch handling |
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from SCRIPTS. Since this feature is not yet tested enough, the |
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boot option 'ncr53c8xx=specf:1' is still required to enable the |
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driver to handle PM from SCRIPTS. |
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Sun Nov 29 18:00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.17 |
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- The SISL RAID change requires now remap_pci_mem() stuff to be |
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compiled for __i386__ when normal IOs are used. |
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- The PCI memory read from SCRIPTS that should ensure ordering |
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was in fact misplaced. BTW, this may explain why broken PCI |
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device drivers regarding ordering are working so well. ;-) |
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- Rewrite ncr53c8xx_setup (boot command line options) since the |
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binary code was a bit too bloated in my opinion. |
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- Make the code simpler in the wakeup_done routine. |
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Tue Nov 24 23:00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.16 |
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- Add SCSI_NCR_OPTIMIZE_896_1 compile option and 'optim' boot option. |
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When set, the driver unconditionnaly assumes that the interrupt |
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handler is called for command completion, then clears INTF, scans |
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the done queue and returns if some completed CCB is found. If no |
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completed CCB are found, interrupt handling will proceed normally. |
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With a 896 that handles MA from SCRIPTS, this can be a great win, |
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since the driver will never performs PCI read transactions, but |
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only PCI write transactions that may be posted. |
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If the driver haven't to also raise the SIGP this would be perfect. |
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Even with this penalty, I think that this will work great. |
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Obviously this optimization makes sense only if the IRQ is not |
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shared with another device. |
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- Still a buglet in the tags initial settings that needed to be fixed. |
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It was not possible to disable TGQ at system startup for devices |
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that claim TGQ support. The driver used at least 2 for the queue |
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depth but did'nt keep track of user settings for tags depth lower |
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than 2. |
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Thu Nov 19 23:00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.15 |
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- Add support for hardware LED control of the 896. |
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- Ignore chips that are driven by SISL RAID (DAC 960). |
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Change sent by Leonard Zubkoff and slightly reworked. |
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- Prevent 810A rev 11 and 860 rev 1 from using cache line based |
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transactions since those early chip revisions may use such on |
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LOAD/STORE instructions (work-around). |
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- Remove some useless and bloat code from the pci init stuff. |
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- Do not use the readX()/writeX() kernel functions for __i386__, |
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since they perform useless masking operations in order to deal |
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with broken driver in 2.1.X kernel. |
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Wed Nov 11 10:00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.14 |
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- The driver was unhappy when configured with default_tags > MAX_TAGS |
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Hopefully doubly-fixed. |
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- Set PCI_PARITY in PCI_COMMAND register in not set (PCI fix-up). |
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- Print out some message if phase mismatch is handled from SCRIPTS. |
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Sun Nov 1 14H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.13 |
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- Some rewrite of the device detection code. This code had been |
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patched too much and needed to be face-lifted a bit. |
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Remove all platform dependent fix-ups that was not needed or |
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conflicted with some other driver code as work-arounds. |
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Reread the NVRAM before the calling of ncr_attach(). This spares |
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stack space and so allows to handle more boards. |
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Handle 64 bit base addresses under linux-2.0.X. |
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Set MASTER bit in PCI COMMAND register if not set. |
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Wed Oct 30 22H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.12 |
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- Damned! I just broke the driver for Alpha by leaving a stale |
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instruction in the source code. Hopefully fixed. |
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- Do not set PFEN when it is useless. Doing so we are sure that BOF |
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will be active, since the manual appears to be very unclear on what |
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feature is actually used by the chip when both PFEN and BOF are |
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set. |
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Sat Oct 24 16H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.11 |
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- LOAD/STORE instructions were miscompiled for register offsets |
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beyond 0x7f. This broke accesses to 896' new registers. |
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- Disable by default Phase Mismatch handling from SCRIPTS, since |
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current 896 rev.1 seems not to operate safely with the driver |
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when this feature is enabled (and above LOAD/STORE fix applied). |
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I will change the default to 'enabled' when this problem will be |
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solved. |
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Using boot option 'ncr53c8xx=specf:1' enables this feature. |
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- Implement a work-around (DEL 472 - ITEM 5) that should allow the |
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driver to safely enable hardware phase mismatch with 896 rev. 1. |
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Tue Oct 20 22H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.10 |
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- Add the 53c876 description to the chip table. This is only useful |
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for printing the right name of the controller. |
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- Add additional checking of INQUIRY data: |
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Check INQUIRY data received length is at least 7. Byte 7 of |
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inquiry data contains device features bits and the driver might |
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be confused by garbage. Also check peripheral qualifier. |
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- Use a 1,3,5,...MAXTAGS*2+1 tag numbering. Previous driver could |
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use any tag number from 1 to 253 and some non conformant devices |
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might have problems with large tag numbers. |
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- Use NAME53C and NAME53C8XX for chip name prefix chip family name. |
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Just give a try using "sym53c" and "sym53c8xx" instead of "ncr53c" |
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and "ncr53c8xx". :-) |
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Sun Oct 11 17H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.9 |
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- DEL-441 Item 2 work-around for the 53c876 rev <= 5 (0x15). |
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- Break ncr_scatter() into 2 functions in order to guarantee best |
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possible code optimization for the case we get a scatter list. |
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- Add the code intended to support up to 1 tera-byte for 64 bit systems. |
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It is probably too early, but I wanted to complete the thing. |
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Sat Oct 3 14H00 1998 Gerard Roudier ([email protected]) |
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* version pre-sym53c8xx-0.8 |
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- Do some testing with io_mapped and fix what needed to be so. |
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- Wait for SCSI selection to complete or time-out immediately after |
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the chip won arbitration, since executing SCRIPTS while the SCSI |
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core is performing SCSI selection breaks the selection procedure |
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at least for some chip revisions. |
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- Interrupt the SCRIPTS if a device does not go to MSG OUT phase after |
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having been selected with ATN. Such a situation is not recoverable, |
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better to fail when we are stuck.
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