jhb f73942d525 Watchdog drivers need to support rearming the watchdog in contexts which
are not permitted to sleep.  Only use the IPMI watchdog with backends
which poll driver-initiated requests to meet this requirement.

In practice this means that watchdogs will no longer be used on systems
that use the SSIF backend.

Differential Revision:	https://reviews.freebsd.org/D2062
MFC after:	2 weeks
2015-04-24 16:56:23 +00:00
..