[openib-general] [PATCH/RFC 2.6.21] ehca: ehca_uverbs.c: refactor ehca_mmap() for better readability
Hoang-Nam Nguyen
HNGUYEN at de.ibm.com
Thu Jan 18 12:03:54 PST 2007
> > Roland, please note that I applied the previous patches to
> > your git tree for-2.6.21 before creating this patch. I also
> > realized a compile issue with the patch from Michael T. in
> > ehca_reqs.c regarding "return qp pointer in ib_wc". For this
> > I'll send another patch.
> Michael -- I didn't notice before but you do seem to have misread the
> ehca CQ polling code. The ehca CQ poll operation doesn't actually
> have the qp pointer readily available -- unless I'm mistaken, ehca
> will have to do an expensive search by QPN in a hash table to get the
> qp pointer. That doesn't seem acceptable for every CQ poll, so do you
> have any ideas of how to salvage this API change?
Yes, your concern is correct.
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