Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus…

…-2.6

Documentation/cciss.txt

@@ -133,3 +133,32 @@ hardware and it is important to prevent the kernel from attempting to directly
 access these devices too, as if the array controller were merely a SCSI 
 controller in the same way that we are allowing it to access SCSI tape drives.
 
+SCSI error handling for tape drives and medium changers
+-------------------------------------------------------
+
+The linux SCSI mid layer provides an error handling protocol which
+kicks into gear whenever a SCSI command fails to complete within a
+certain amount of time (which can vary depending on the command).
+The cciss driver participates in this protocol to some extent.  The
+normal protocol is a four step process.  First the device is told
+to abort the command.  If that doesn't work, the device is reset.
+If that doesn't work, the SCSI bus is reset.  If that doesn't work
+the host bus adapter is reset.  Because the cciss driver is a block
+driver as well as a SCSI driver and only the tape drives and medium
+changers are presented to the SCSI mid layer, and unlike more 
+straightforward SCSI drivers, disk i/o continues through the block
+side during the SCSI error recovery process, the cciss driver only
+implements the first two of these actions, aborting the command, and
+resetting the device.  Additionally, most tape drives will not oblige 
+in aborting commands, and sometimes it appears they will not even 
+obey a reset coommand, though in most circumstances they will.  In
+the case that the command cannot be aborted and the device cannot be 
+reset, the device will be set offline.
+
+In the event the error handling code is triggered and a tape drive is
+successfully reset or the tardy command is successfully aborted, the 
+tape drive may still not allow i/o to continue until some command
+is issued which positions the tape to a known position.  Typically you
+must rewind the tape (by issuing "mt -f /dev/st0 rewind" for example)
+before i/o can proceed again to a tape drive which was reset.
+

Documentation/scsi/00-INDEX

@@ -52,8 +52,6 @@ ppa.txt
 	- info on driver for IOmega zip drive
 qlogicfas.txt
 	- info on driver for QLogic FASxxx based adapters
-qlogicisp.txt
-	- info on driver for QLogic ISP 1020 based adapters
 scsi-generic.txt
 	- info on the sg driver for generic (non-disk/CD/tape) SCSI devices.
 scsi.txt

Documentation/scsi/qlogicfas.txt

@@ -11,8 +11,7 @@ Qlogic boards:
 	* IQ-PCI-10
 	* IQ-PCI-D
 
-is provided by the qlogicisp.c driver.  Check README.qlogicisp for
-details.
+is provided by the qla1280 driver.
 
 Nor does it support the PCI-Basic, which is supported by the
 'am53c974' driver.

Documentation/scsi/scsi_eh.txt

@@ -83,11 +83,11 @@ with the command.
  The timeout handler is scsi_times_out().  When a timeout occurs, this
 function
 
- 1. invokes optional hostt->eh_timedout() callback.  Return value can
+ 1. invokes optional hostt->eh_timed_out() callback.  Return value can
     be one of
 
     - EH_HANDLED
-	This indicates that eh_timedout() dealt with the timeout.  The
+	This indicates that eh_timed_out() dealt with the timeout.  The
 	scmd is passed to __scsi_done() and thus linked into per-cpu
 	scsi_done_q.  Normal command completion described in [1-2-1]
 	follows.
@@ -105,7 +105,7 @@ function
 	command will time out again.
 
     - EH_NOT_HANDLED
-	This is the same as when eh_timedout() callback doesn't exist.
+	This is the same as when eh_timed_out() callback doesn't exist.
 	Step #2 is taken.
 
  2. scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD) is invoked for the
@@ -142,7 +142,7 @@ are linked on shost->eh_cmd_q.
  Note that this does not mean lower layers are quiescent.  If a LLDD
 completed a scmd with error status, the LLDD and lower layers are
 assumed to forget about the scmd at that point.  However, if a scmd
-has timed out, unless hostt->eh_timedout() made lower layers forget
+has timed out, unless hostt->eh_timed_out() made lower layers forget
 about the scmd, which currently no LLDD does, the command is still
 active as long as lower layers are concerned and completion could
 occur at any time.  Of course, all such completions are ignored as the

Documentation/scsi/scsi_mid_low_api.txt

@@ -346,7 +346,7 @@ Next, there is a movement to "outlaw" typedefs introducing synonyms for
 struct tags. Both can be still found in the SCSI subsystem, but
 the typedefs have been moved to a single file, scsi_typedefs.h to
 make their future removal easier, for example: 
-"typedef struct scsi_host_template Scsi_Host_Template;"
+"typedef struct scsi_cmnd Scsi_Cmnd;"
 
 Also, most C99 enhancements are encouraged to the extent they are supported
 by the relevant gcc compilers. So C99 style structure and array
@@ -718,7 +718,7 @@ void scsi_report_bus_reset(struct Scsi_Host * shost, int channel)
  *
  *      Defined in: drivers/scsi/scsi.c .
  **/
-int scsi_track_queue_full(Scsi_Device *sdev, int depth)
+int scsi_track_queue_full(struct scsi_device *sdev, int depth)
 
 
 /**

drivers/block/acsi.c

@@ -58,7 +58,6 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <scsi/scsi.h> /* for SCSI_IOCTL_GET_IDLUN */
-typedef void Scsi_Device; /* hack to avoid including scsi.h */
 #include <scsi/scsi_ioctl.h>
 #include <linux/hdreg.h> /* for HDIO_GETGEO */
 #include <linux/blkpg.h>