CVS commit: syssrc/sys/dev/mca

[Jaromir Dolecek <jdolecek%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   jdolecek
Date:           Fri Nov 23 22:53:11 UTC 2001

Modified Files:
        syssrc/sys/dev/mca: ed_mca.c edc_mca.c

Log Message:
Convert over to use the new MCA DMA facilities, which encapsulate
the MCA DMA controller access. This also means we gain >16MB RAM support.

While here, overhaul the driver to saner state, especially:
* simplify and clean the attach code a lot, and support the 'drive'
  locator
* pass proper dev_t to readdisklabel() - formerly, the passed value was
  completely broken (used incorrect major and wrong minor), but worked
  by accident
* worker thread is now spawned per controller, rather than per-drive;
  i/o cannot be done concurrently by different drivers, only one
  i/o can be pending at any time
* simplify the command queue code, just sleep appropriately when
  !poll case, g/c 'async' code formerly needed, move the bio code
  from ed_mca.c to edc_mca.c:edc_bio()
* put all string arrays used by edc_dump_status_block() within #ifdef EDC_DEBUG,
  and use numbers instead if it's not defined; this cuts object size by 5KB
* other misc cleanups


To generate a diff of this commit:
cvs rdiff -r1.9 -r1.10 syssrc/sys/dev/mca/ed_mca.c
cvs rdiff -r1.10 -r1.11 syssrc/sys/dev/mca/edc_mca.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.