[ofw] [PATCH] DAPL v2.0: common: increase default IB ack timer from 16 to 20

Hefty, Sean sean.hefty at intel.com
Wed Nov 2 16:19:49 PDT 2011


> Yes, a user can modify path lifetime via rdma_create_ep() but there
> is no way for the user to know how much that will be manipulated and
> increased in the IB CM driver.

Sure there is.  It's an open source driver.  :)

The ib_cm calculates the "correct" timeout based on the packet lifetime provided by the SA and the CA ack timeout.  If user modifications to this value are necessary, then there is a bug in either the SA or HCA driver. 


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