Merge to 2.1.38.

IMPORTANT NOTE:  I could not figure out what information is the
one that should be used for the following files (ie, those
that were in our tree, or those that came from Linus' patch),
please, check these:

include/asm-mips/jazz.h
include/asm-mips/jazzdma.h
include/asm-mips/ioctls.h

2 files changed, 68 insertions, 12 deletions

diff --git a/Documentation/Configure.help b/Documentation/Configure.help
index a9274b91a..8310f1eea 100644
--- a/Documentation/Configure.help
+++ b/Documentation/Configure.help
@@ -1679,20 +1679,62 @@ CONFIG_SCSI_AHA1740
   want to compile it as a module, say M here and read
   Documentation/modules.txt.
 
-Adaptec AHA274X/284X/294X support
+Adaptec AIC7xxx support (includes 274x/284x/294x)
 CONFIG_SCSI_AIC7XXX
   Information about this SCSI host adapter is contained in
   drivers/scsi/README.aic7xxx and in the SCSI-HOWTO, available via ftp
-  (user: anonymous) at sunsite.unc.edu:/pub/Linux/docs/HOWTO. If it
-  doesn't work out of the box, you may have to change some settings in
-  drivers/scsi/aic7xxx.h. It has been reported that the "wide
-  negotiation" on these cards is not quite working and should be
-  disabled. Note that the AHA2920 SCSI host adapter is *not* supported
-  by this driver; choose "Future Domain 16xx SCSI support" instead. If
-  you want to compile this driver a module ( = code which can be
-  inserted in and removed from the running kernel whenever you want),
-  say M here and read Documentation/modules.txt. The module will be
-  called aic7xxx.o.
+  (user: anonymous) at sunsite.unc.edu:/pub/Linux/docs/HOWTO. Note that
+  the AHA2920 SCSI host adapter is *not* supported by this driver; choose
+  "Future Domain 16xx SCSI support" instead. If you want to compile this
+  driver as module ( = code which can be inserted in and removed from the
+  running kernel whenever you want), say M here and read Documentation/
+  modules.txt. The module will be called aic7xxx.o.
+
+Enable tagged command queueing
+CONFIG_AIC7XXX_TAGGED_QUEUEING
+  This option allows you to enable tagged command queueing for this
+  driver.  Some scsi devices do not properly support this
+  feature.  Tagged command queueing will improve performance.
+
+Maximum number of commands per LUN
+  CONFIG_AIC7XXX_CMDS_PER_LUN
+  This option allows you to set the maximum number of commands queued
+  per LUN.  If tagged queueing is enabled, then you may want to try
+  increasing AIC7XXX_CMDS_PER_LUN to more than 2.  By default, we limit
+  the SCBs per LUN to 2 with or without tagged queueing enabled.  If
+  tagged queueing is disabled, the sequencer will keep the 2nd SCB in
+  the input queue until the first one completes - so it is OK to to have
+  more than 1 SCB queued.  If tagged queueing is enabled, then the
+  sequencer will attempt to send the 2nd SCB to the device while the
+  first SCB is executing and the device is disconnected.  For adapters
+  limited to 4 SCBs, you may want to actually decrease the commands per
+  LUN to 1, if you often have more than 2 devices active at the same
+  time.  This will allocate 1 SCB for each device and ensure that there
+  will always be a free SCB for up to 4 devices active at the same time.
+  When SCB paging is enabled, set the commands per LUN to 8 or higher
+  (see SCB paging support below).  Note that if AIC7XXX_CMDS_PER_LUN is
+  not defined and tagged queueing is enabled, the driver will attempt to
+  set the commands per LUN using its own heuristic based on the number
+  of available SCBs.
+
+Enable SCB paging
+CONFIG_AIC7XXX_PAGE_ENABLE
+  This option enables SCB paging.  This will increase performance when
+  tagged queueing is enabled.  Note that you should increase the
+  AIC7XXX_CMDS_PER_LUN to 8 as most tagged queueing devices allow at
+  least this many.  Note that EISA and VLB controllers do not support
+  SCB paging due to chip limitations; enabling it on these controllers
+  has no effect.
+
+Collect statistics to report in /proc
+CONFIG_AIC7XXX_PROC_STATS
+  This option enables collection of SCSI transfer statistics for the
+  /proc filesystem.  This does affect performance since it has to
+  maintain statistics.
+
+Delay in seconds after SCSI bus reset
+CONFIG_AIC7XXX_RESET_DELAY
+  This option sets the delay in seconds after a SCSI bus reset.
 
 BusLogic SCSI support
 CONFIG_SCSI_BUSLOGIC
@@ -4653,6 +4695,18 @@ CONFIG_RTC
   have a use for such a device (such as periodic data sampling), then
   say Y here, and go read the file Documentation/rtc.txt for details.
 
+/dev/nvram support
+CONFIG_NVRAM
+  If you say Y here and create a character special file /dev/nvram
+  with major number 10 and minor number 144 using mknod ("man mknod"),
+  you get access to the non-volatile memory in the real time clock
+  (RTC). This is conventionally called "CMOS RAM" on PCs and "NVRAM"
+  on Ataris. /dev/nvram may be used to view settings there, or to
+  change them (with some utility). It could also be used to frequently
+  save a few bits of very important data, that may not be lost over
+  power-off and for which writing to disk is too insecure. On Atari
+  machines, /dev/nvram is always configured and needs not be selected.
+
 ARC console time
 CONFIG_RTC_ARC
   If you boot your Alpha using the ARC firmware, say Y here. This option
diff --git a/Documentation/ioctl-number.txt b/Documentation/ioctl-number.txt
index 790bb18c7..e86a2ad1a 100644
--- a/Documentation/ioctl-number.txt
+++ b/Documentation/ioctl-number.txt
@@ -1,5 +1,5 @@
 Ioctl Numbers
-10 Apr 1997
+25 Jul 1997
 Michael Chastain
 <mec@shout.net>
 
@@ -119,3 +119,5 @@ Code	Seq#	Include File		Comments
 					<mailto:b.kohl@ipn-b.comlink.apc.org>
 0xA0	all	Small Device Project	in development:
 					<mailto:khollis@northwest.com>
+0xA3	90-9F	DoubleTalk driver	in development:
+					<mailto:jrv@vanzandt.mv.com>