[openib-general] Causes of interrupt problems?

[Roland Dreier]

    Troy> I have some cards with ancient firmware revisions, which
    Troy> seem like they don't implement NOP. The bios was actually
    Troy> fine on this machine, and everything was happy once I put a
    Troy> card with a newer firmware in.

Hmm, interesting.  I forgot that the NOP command was added after some
firmware was released (and I'm surprised there are cards with such old
FW still around).

I think I'll add a warning message like

    HCA firmware version 1.13.0 is old.  If you have problems, try updating FW.

if mthca sees a card with firmware older than the newest version (3.3.2,
4.6.2 and 5.0.1 respectively).

Thanks,
  Roland