Hi Eitan,
 
You wrote:
"Note that the current implementation of the RMPP code ignores the payload 
length on the receive side, and instead relies on the last bit to determine the 
end of a transfer."
 
But the receive side needs to calculate back the correct size of the assembled 
MAD.
If it is done in kernel or user it does not matter. To my best knowledge the 
only way to calculate how many records are enclosed in an RMPP message is to 
use the paylen and offset.
How can it be done without looking at paylen ?
 
All Sean is saying is that the receive RMPP ignores a non zero PayLen in a 
first segment and uses the last bit (and obviously the PayLen in the last 
segment) to determine the received length (of the reassembled MAD).
 
-- Hal
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