[openib-general] Quick RDMA Write with Immediate Data Item question

[Ken Jeffries]

IIRC the immediate data (32 bits) is delivered in a field in the structure returned by the cq poll function (which means that the
SEND RDMA w/immediate does consume an rq work request). The s/g info has no bearing on the immediate data.  

Ken

  ----- Original Message ----- 
  From: Steven Wooding 
  To: openib-general at openib.org 
  Sent: Friday, May 12, 2006 7:46 AM
  Subject: [openib-general] Quick RDMA Write with Immediate Data Item question


  Hi,

  Just a quick question I can't seem to find the answer to.

  With an "RDMA Write with Immediate Data Item" transfer, in the CQE at the destination (the thing that has the Immediate Data it), does the CQE also contain the memory location where the message just got written too? i.e. does the scatter/gather buffer member of the work completion structure get filled in at all? Or do you just get the ImmdDataItem?

  Thanks for your help.

  Steve Wooding.

   


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