[openib-general] [RFC] [PATCH] user_mad: Support RMPP on send side

Sean Hefty mshefty at ichips.intel.com
Wed May 11 14:37:17 PDT 2005


Hal Rosenstock wrote:
> A couple of notes on this patch:
> 1. send side copying
> There are currently 2 copies from user space done even in the non RMPP
> case. It would be nice to reduce that to one in the non RMPP case.
> This is an optimization to add at some point.

Having a single data copy on both the send side and receive side should be 
possible without too much work.  I know that the receive side copies twice 
now, but sends are one.  Why not keep it this way, versus having to come 
back, modify the code again, and retest?

- Sean



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