Roland Dreier wrote:
This reminds me of something I've been meaning to ask: what is the attr_mask of the query QP function used for? The verbs definition in the IB spec does not include an attribute mask. Obviously we don't have to follow the spec precisely but I'm wondering what the advantage is in having an attribute mask for query QP. None of the other query methods (including query SRQ) have an attribute mask.
My understanding of the original code that this came from is that it permitted querying attributes that may be stored in memory, rather than requiring reading the card. E.g. if all you needed was the QPN, then you could obtain only that information. Given that things like the QPN, QP type, etc. are already available through the API, I'm not sure that the mask is needed.
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