[ofw] [PATCH] dapl: use private_data_len for mem copies

[Hefty, Sean]

>On the linux side you have RDMA_MAX_PRIVATE_DATA defined in rdma_cma_abi.h as:
>
>#define RDMA_MAX_PRIVATE_DATA           256
>
>This is the user/kernel interface max value.
>
>Where do I get the actual private data max value for the rdma_cm protocol?

There isn't any single rdma_cm protocol.  The absolute maximum private data for any connection message is RDMA_MAX_PRIVATE_DATA, which is 256, but the amount available may be less.  There is no minimum value that is guaranteed.  The amount returned for a connection event is specified as part of the event.