attilio 0e3418f9cf Add sysctls in ahd(4) in order to keep track of different classes of
errors. So far 3 different classes are present (correctable,
uncorrectable and fatal) but more can be added easilly.

Obtained from:	Sandvine Incorporated
Reviewed by:	emase, gibbs
Sponsored by:	Sandvine Incorporated
MFC:		2 weeks
2009-11-13 22:57:20 +00:00
..