Each received MAD can only have 1 client which "owns" it. That client is either determined via solicited routing or version/class/method (and soon OUI) routing.
This is correct. This was done to avoid having to copy received MADs.
So solicited MAD responses cannot currently be snooped nor can unsolicited ones for which an agent is registered (Since SMA and PMA are currently firmware based, the latter is not an issue for the current implementation).
Is the above correct ? If so, do you see a "clean" way around this ?
This is something that was briefly discussed before. I think that I would support snooping by extending the ib_mad_reg_reg structure to indicate a registration type, possibly along with some additional filtering parameters. (We could also create a new snoop routine.)
One issue with snooping MAD is whether the snooping occurs above or below RMPP, or possibly in both places.
- Sean
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