simonb a68944cfca Overhaul the tz SCSI tape driver:
+ Add a quirk table.
 + Assume all else is a modern drive that can do variable block
   lengths (this is the main reason for this work - the old driver
   only ever seemed to write 512 byte blocks!).
 + Keep track of values for mtget's mt_fileno, mt_blkno.
 + Handle a few extra MTIOCTOP commands.

Ideas gleaned from our MI scsi tape driver and the FreeBSD CAM tape
driver.  Tested on a TKZ09 (DEC badged Exabyte 8500), a TLZ06 (DEC
DAT) and TK50.

Many thanks to Pierre Bergdolt for helping with testing.
1999-09-07 13:53:36 +00:00
1999-09-06 20:28:19 +00:00
1999-09-07 13:53:36 +00:00
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