Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Fix typos from previous commit.

/* -> /*- for license, minor formatting changes

$Id$ -> $FreeBSD$

Convert ISP pci front end to CAM/bus space/dma.

Convert ncr driver to CAM.

Prepare for 64bit programming environment (e.g. Alpha):

Use "ncrcmd" or "u_int32_t" instead of "u_long", where appropriate.

Submitted by: Gerard Roudier <groudier@club-internet.fr>

Go back to previous definition of FE_CACHE_SET, since the problem
caused by read-multiple on the 53c810a should have been fixed by
adjusting the alignment of the global header in rev 1.104 of ncr.c.

Remove two features that have been reported to cause problems with
certain variants of the NCR chip from FE_CACHE_SET: FE_CLSE (enable
cache-line size register) and FE_ERMP (enable read-multiple). They
will be re-enabled, if a fix for the underlying problem (a restriction
in the memory to memory move logic of some chips) has been implemented.

Add Ultra-SCSI support and enable more features for advanced
Symbios/NCR SCSI chips (no-flush option, large fifo, ...).

Submitted by: Gerard Roudier <groudier@club-internet.fr>

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

General cleanup and new features for 53c875 based cards, especially the
Tekram DC390W/U/F, whose config EEPROM can now be dumped, if the kernel
is built with option NCR_TEKRAM_EEPROM.

Other changes:

- add brackets to expansion of OUTB/W/L macro arguments.
- remove unused NCB structure element ns_async
- support sync. SCSI offset of 16 (instead of only 8) on 825A and 875
- correctly identify 53c810A and 53c825A chips
- preserve SCSI BIOS settings of PCI performance options
- remove (already disabled) support for NCR reset because of command timeout
- reverse order of reading of SCSI and DMA specific interrupt cause registers
- add definition of Tekram config EEPROM contents (not currently used)

Improve support of SCSI cards based on the 53c860 and 53c875.
Still no support for Ultra-SCSI and other new features, but the code
should now correctly initialize the clock pre-scaler (based on freqency
measurement results, if necessary).

Fix support of 16 targets for WIDE SCSI.

Disable bus reset in case no progress is made for too long ("ncr dead"
message), which did not work too well with scanners and other slow devices.

Stylistic changes. Update Wolfgang's e-mail address.

Submitted by: Wolfgang Stanglmeier <wolf@kintaro.cologne.de>

Reapplied all of Stefan's changes. What a mess - the files were modified
and moved at the same time. This made it *very* difficult to fix the
revision log lossage that happend when the files were moved. SIGH.

Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de>
Name change: ncr_reg.h -> ncrreg.h