mjacob
Fri Jul  3 18:50:20 PDT 1998
Update of /cvsroot/src/sys/dev/scsipi
In directory nb00:/tmp/cvs-serv4527

Modified Files:
	st.c 
Log Message:
Minor enhancements:

	1) Quirk entries for Storage Tek 9490 (Timberline) and D3 (Redwood)
	drives.

	2) Modification to st_loadtape to do a REWIND to BOT if the
	action is a load and the tape doesn't support the LOAD command
	(9490, SD3, and IBM 3590). 

	3) Cleaned up the 'undersized user record' error message to
	make a little more sense.

Various bug fixes:

kern/1275:	Now returns values in dsreg and erreg and sets resid
		(as best as it can for a 16 but integer). See also
		a recent change to mtio.h. We are declining to fix
		the portion of this bug about naming a more specific
		SCSI device. Since there is nothing programmatic
		you can do with that information, it is not useful
		to pass back at this time.

		A side effect of this change is that doing MTIOCGET
		also forces a mode sense (to get the current state
		of WRITE PROTECT).
	

kern/5647:	Now no longer logs to the console ILI or Filemark or (first)
		EOM (on write) errors (unless SCSIDEBUG is set).

kern/5525:	Substantially increased timeouts for a variety of
		operations, and split them into categories of
		I/O, Space, and Control operations (each have
		likely different inherent times). I/O is for
		reads/writes. Control is for mode sense/select.
		Space is for spacing the tape.

Until EOM handling is changed, though kern/391 is still not fixed. A side
effect of EOM handling is that you now always 'lose' (to the writing
application's view) the last write since EIO is what is returned on
EOM detection during writes. Hopefully the reader applications don't
get too bent out of shape by this.