[openib-general] RMPP implementation

[Michael S. Tsirkin]

Hello!
Quoting r. Sean Hefty (mshefty at ichips.intel.com) "[openib-general] RMPP implementation":
> I'm starting work on the RMPP implementation in the MAD code.  If anyone 
> has any ideas/preferences on the implementation, please let me know.
> 
> For the send side, there are a couple of ways to perform the segmentation:
> 
> 1.  Issue one send at a time.  Additional sends are not transfered until 
>  the first send completes.
> 2.  Issue multiple sends using 2 data segments per request.  This 
> requires allocating and mapping space (36 bytes) for copying the MAD 
> common and RMPP headers.
> 3.  Issue multiple sends using 3 data segments per request.  This is the 
> same as #2, but only copes the RMPP header.
> 
> I'm leaning towards #2 at this point.
> 
> RMPP is fairly complex, so I will probably submit a series of patches, 
> rather than the entire implementation at once.
> 
> - Sean

RMPP is somewhat similiar to TCP. I wander if there is some way
to re-use the TCP stack code.

MST