[openib-general] scaling issues, was: uDAPL cma: add support for address and route retries, call disconnect when recving dreq

[Arlin Davis]

Sean Hefty wrote:

>One option is having the SA (or ib_umad?) return a busy status in response to a 
>MAD, but we'd still have to be able to send this response as quickly as requests 
>are being received.  We could then limit the number of requests that would be 
>queued in the kernel for a user.
>  
>

Another great option would be to have path record caching. Unfortunately 
OFED 1.1 did not include ib_local_sa in the release.