[ofa-general] Bogus Receive Completions

Roland Dreier rdreier at cisco.com
Thu Jan 3 21:10:57 PST 2008


 > I added a little debugging patch to src/cq.c in libmthca, and I found
 > that when the failure happened, the CQE had a WQE address that was out
 > of sequence -- the RQ has size 0x200 with 0x20 byte WQEs, and the CQEs
 > had WQE address 0x100 then WQE address 0x0; or address 0x0 then 0x140;
 > or even 0x80 twice in a row.
 > 
 > Mellanox: can you take this test case and see if it is indeed a
 > firmware issue?  I could believe that there is a bug in libmthca's
 > mthca_tavor_post_recv() function too...

Hi Tziporet -- any update about this issue (bad WQE address in CQE on
non-mem-free HCAs)?

Thanks,
  Roland



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