At present there is no way to retry, if allowed, a scsi command without
decrementing the scsi command's retry count.

Please find a patch attached, which is submitted, for adding a new host_byte
status code called "DID_IMM_RETRY". This enables the Low Level SCSI drivers
to initiate retry of a scsi command without decrementing the scsi commad's
retry count.

Move version information from .h to .c so that it's more likely to
get updated as changes are made (the .h file is rarely modified).
Update the version from 2.04 to 2.05

Clean up debugging statements. Work on making output consistent - use
the same format each time the same bit of information is output and
output the same bits of information in the same order each time it's
output. Update a lot of the actual messages to include useful
information and to explain better what some things are. Remove some
old comments and commented out code. Remove some of the debugging
states. Find few instance of spaces that should have been tabs and
trailing white space and remove them.

Remove the special versions of kmalloc and kfree and remove the trace
related stuff from the code. None of this is really needed and it is
not really a nice implementation. This also removes all non 7-bit
clean characters to help with David Eger's work to remove and/or
convert them all to UTF8.

Cleanup a lot of the sg list handling to make it easier to follow in
preparation for making this work on sparc64 (big-endian & 64bit).

Formatting cleanups.
- Remove lots of comments that were out-of-date, wrong, or now
  described things that had been simplified that much that the
  comments were no longer needed.
- Move the "static" definition from a line before functions onto the
  same line as the function itself.
- Remove "return;" from the end of void functions.
- Remove braces from around single instructions.
- Merge the declaration and assignment to variables in places where
  the followed each other.
- Remove braces from around single statement that obviously didn't
  need them.
- Remove unused code and variables.
- Fix debug statement in disconnect to not deref potentially null
  ptr.
- Change a lot of short comments that take up three lines down to one
  line.

From: 	Moore, Eric Dean <Emoore@lsil.com>

We still retain the default MAX_PHYS_SEGMENTS (which
is currently 128).  However, a mechanism for raising
the limit correctly is added for people who wish to
benchmark with larger sglists.

A decision on how we present this to the user will be
taken at a later time when more information about
the usefulness of a higher limit is available

From: Randy.Dunlap <rddunlap@xenotime.net>,olh@suse.de

make Adaptec AIC7xyx drivers depend on SCSI tristate
(without this you can compile aic7xxx into the
kernel when SCSI is only modular)

spotted by akpm (the select was misspelled in
the SCSI_SIM710 Kconfig option)

his patch moves the internal storage of the offset and period to the
transport class and adds methods to set them (there's no need for a get
method since the value in the transport class is exactly what the driver
believes the transport agreement to be).

You can see how this type of use of the transport class is supposed to
work: the driver now has init and exit routines attaching and releasing
the transport class (that's the reason for the Makefile perturbation
because it has to init before its users).  The correct attributes are
set up in slave_configure() for negotiation and we now export the period
and offset setting functions.

This adds the final missing piece to the transport attributes:  A
published API by which they can be set and retrieved (SPI attributes
only).  The sysfs field only appears writeable if the driver supplied a
set method in the attribute template, so unsettable attributes show up
as read only.

The consequence now is that the spi transport attribute class is no
longer a simple exported structure: the driver has to attach to the spi
transport class at module initialisation.

This patch does two things:

1. Add all the other ppr type transport attributes to the spi class
2. make period settable as the ppr/sdtr period, but display in ns for
the user.

Yes, someone really was stupid enough to make a device with
such a dumb vendor name. In combination with the device name
and rev number though, it shouldn't cause any false positives.

Device in question is some no-name 6-in-1 usb card reader,
whose slots all appear on different LUNs, requiring you
fiddle with scis_mod's max_luns argument unless you have this patch.

No changes whatsoever, just moves entries around to sort
on vendor. I kept the multiple sections, and just
sorted per section.

From: 	Martin Hicks <mort@wildopensource.com>

Transport attributes are classes which can be
attached to by a scsi driver to export (and
later control) transport based properties.

The ipr driver that is currently out for review talks to disk array devices
that require a START_UNIT prior to media ops, similar to normal scsi devices.
However, any time the adapter gets reset, these devices end up needing another
START_UNIT. This causes problems with the current error handling and these
devices get taken offline when this occurs. Attached is a patch which will
better handle these devices and issue a START_UNIT from the error handler
when appropriate.

I was testing different errors while running multipath, and becuase of
a bug in dm-multiapth I hit the "Incorrect number of segments after
building list" error. The attached patch just adds a missing
scsi_release_buffers() at the bottom of the scsi_init_io where the
table was allocated successfully, but you can return BLKPREP_KILL when
someone messes up segment counts.

From: 	Kurt Garloff <garloff@suse.de>

Based on earlier patches from
 Badari Pulavarty <pbadari@us.ibm.com>,
 Matthew Wilcox <willy@debian.org>

- The sysfs directory names are changed from stxmy[n] to the names in
  devices.txt. Below is an example for the first tape drive:
  /sys/class/scsi_tape/
  |-- nst0
  |-- nst0a
  |-- nst0l
  |-- nst0m
  |-- st0
  |-- st0a
  |-- st0l
  `-- st0m

- Name generation for non-default number of modes fixed so that same
  minors get same names even with different number of modes.

- devfs minor generation fixed to work with non-default number of modes

- The alignment requirement is printed in the line logged when a tape is
  attached.

OK, let's export the proc_name then. It's some name that can be used
to identify the driver, works for code both compiled statically or
as module, is reasonably short and very often resembles the module
name.

For the module_name, let's wait for a generic sysfs solution.

From: Christoph Hellwig <hch@infradead.org>

- Remove dead forward declarations

- Fix compilation of the interrupt handler.

From: 	Moore, Eric Dean <Emoore@lsil.com>

Some SGI RAID devices identify as being SCSI-3, so they don't need
to be in the scsi_static_device_list any more.  I've tested to make
sure that all luns still show up in a sparse, large config.

So I'm proposing removing them.  Thanks to hch for the suggestion.

Device type 0x0C is RAID, so show it as such