[openib-general] CM private data

[Caitlin Bestler]

I believe that an IT-API it_ep_accept() supplies private
data that it expects to be delivered to its peer when the
three-way handshake option is selected.

DAT only exposes a two-way handshake, so there it never
requires private data on the RTU.

I don't know if any IT-API applications actually require the
three-way handshake.


On 5/18/05, Sean Hefty <mshefty at ichips.intel.com> wrote:
> Do any applications make use of the private data in these CM message: RTU,
> MRA, or DREP?  I'm doubtful of the RTU or DREP, but not as sure of the MRA.
> 
> Since no replies are generated in response to these messages, the CM does
> not keep them after their sends complete.  However, it may need to resend
> the messages.  For example, it will resend the RTU if a duplicate REP is
> received.
> 
> If no applications are using the private data, I will not worry about
> storing the private data for the retransmissions at this time.
> 
> - Sean
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