[openib-general] RFC: detecting duplicate MAD requests

[Sean Hefty]

Sean Hefty wrote:
> 4. Modify umad to learn which requests generate responses, by examining response 
> MADs.  When a response is sent, umad would mark which method the response is for 
> by flipping the R-bit.  Based on the algorithm, this could result in losing 
> responses the first time that a request is seen.  Some additional hard-coding 
> would be needed for a Set, since a Set request generates GetResp MADs.

This brings up a concern.  There doesn't seem to be a limit to the number of 
received MADs that can be queued for a user.  Should we have such a limit?

- Sean