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svn:author
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cem
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svn:date
V 27
2015-11-18T22:20:31.425966Z
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V 241
NTB: Mask off the low 12 bits of address/range registers

Sometimes they'll read spurious values (observed: 0xc on Broadwell-DE),
failing link negotiation.

Discussed with:	Dave Jiang, Allen Hubbe
Sponsored by:	EMC / Isilon Storage Division

END