[openib-general] High memory

[Shuang Liang]

Hi,
   I am new here with some problem of gen2 programming, hope somebody 
can help me. I was trying to send a message from a kernel buffer to a 
remote userland program on IA-32 machines.
   Basically, what happened was I used get_dma_mr to get memory 
registered. And I noticed if a buffer is allocated from high memory 
(address >f8000000), then the data can not be delivered correctly to the 
receiver side(both send recv completes successfully, but with wrong 
data). I thought the problem could have been that I used virt_to_phys 
for address translation. But I can't find any appropriate ones for high 
memory address translation. I wondering if somebody could give me some  
suggestions on this.

   Thanks a lot!

-- 
Shuang Liang, 
Graduate Administration Assistant, 
Department of Computer Science & Engineering
The Ohio State University, 374 Dreese Labs, 2015 Neil Ave
Columbus, Ohio 43210  
614-292-1900, 
614-292-2911 (fax)