Hal> Good point. We will need more than access to the TID for Hal> RMPP. We need a replacement for bus_to_virt. Is there an Hal> "approved" way to get from DMA address to VA ? No, you just need to save off the VA if you need to use it later. So maybe we need to add a pointer to the MAD header in ib_send_wr.wr.ud. - Roland