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Justin T. Gibbs 102d19a473 Implement SCB paging which allows up to 255 active commands on aic7770

(Rev E or greater), aic7850, aic7860, aic7870, and aic7880 controllers.
SCB paging is enabled with the option "AHC_SCBPAGING_ENABLE".  Full
comments on the algorithm are at the top of i386/scsi/aic7xxx.c.

options "AHC_TAGENABLE" and "AHC_QUEUE_FULL" have been removed.  The
default is 4 tags without SCB paging, 8 with.

Clear the SCSIRSTI bit after throwing a bus reset.  Some cards seem to get
confused otherwise.

Handle SCSIRSTI interrupts before checking to see if there is a valid
SCB in use since this can happen. (Clears PR# i386/1123)

Clean up the way we determine the number of SCBs on the card
(courtesy of Dan Eischen).

Guard against attempts to negotiate wide to a narrow controller.

Fix some comments.

Update my copyrights.

1996-04-20 21:29:27 +00:00

bin

Fix up the badly out of date struct proc's p_flags.

1996-04-19 22:23:27 +00:00

eBones

Remove old cruft.

1996-04-16 06:38:56 +00:00

etc

Exclude devices. Character ones modes changes often and proper names

1996-04-19 22:28:01 +00:00

games

Correct some man page cross references and file location references.