cvs commit: src/sys/dev/fxp if_fxp.c if_fxpvar.h

[M. Warner Losh]

In message: <200304291800.h3TI0Dnr040242 at khavrinen.lcs.mit.edu>
            Garrett Wollman <wollman at lcs.mit.edu> writes:
: <<On Tue, 29 Apr 2003 11:55:24 -0600 (MDT), "M. Warner Losh" <imp at bsdimp.com> said:
: 
: > This likely means that some higher level of locking is necessary so
: > that we can make sure that the interrupts can't happen once detach
: > starts.
: 
: What am I missing here?  You can just disable interrupts in the
: hardware first thing, while holding whatever lock the handler would
: normally need to obtain, then force-terminate the handler thread if it
: happens to be waiting for that lock after you're done tearing it down.

Shared interrupts mean that your ISR gets called, even if the card
isn't the one doing the interrupting.  Also, you can't force terminate
interrupt threads at this time.

Warner