> > > > But how? > > Wait, work request posting functions actually get a virtual > > address and a key, not a dma address. > > Work requests posted using ib_post_send/recv are specified using a dma > address obtained using the appropriate Linux DMA mapping API function. > They are not virtual addresses. >
This isn't necessarily true. The addr field in the WR is a dma addr when using a MR allocated via ib_get_dma_mr(). For MRs allocated via ib_reg_phys_mem(), then the addr field is something relative to the iova_start u64 passed into the ib_reg_phys_mem(). Right? _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
