Are there any examples for the 6670/6678 to do an NREAD/NWRITE using direct I/O. We have the MREAD/MWRITE packets going both ways, however it seems that the NREAD/NWRITE brings the link down. Is there anything special we needed to do to get the NREAD/NWRITE working? We have looked at the srio_drv in the pdk, however we were looking for a more basic example where we do not need to be running the BIOS to use the NREAD/NWRITE.