Hi Tom, >> I just tested that setting: >> >> mr->iova &= (PAGE_SIZE - 1); >> mr->iova |= 0xFFFFFFFF00000000; >> >> after the ib_map_mr_sg() and before doing the IB_WR_REG_MR, seems to >> work. > > Good! As you know, we were concerned about it after seeing that > the ib_dma_map_sg() code was unconditionally setting it to the > dma_mapped address. By salting those FFFF's with varying data, > this should give your FRWR regions stronger integrity in addition > to not leaking kernel "addresses" to the wire. Just wondering... Isn't the thing we use called FRMR? metze
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