<div dir="ltr"><div class="gmail_quote"><div dir="ltr">Hi,<div><br></div><div>I am using DPDK successfully with an Intel x710 10G Controller, however I am getting the error shown below when trying to use the older Intel x550T controller in a similar manner. </div><div><br></div><div>I was able to find the following "workaround", however I'm not quite sure how to apply this in practice in a standard ubuntu 22.04 LTS environment, or if this is in fact the core issue.</div><div><br></div><div>30.4.5.3. Workaround<br>Do not bind the uio_pci_generic module in X550 NICs. Do not bind igb_uio with legacy mode in X550 NICs. Before binding vfio with legacy mode in X550 NICs, use modprobe vfio `` ``nointxmask=1 to load vfio module if the intx is not shared with other devices.<br></div><div><br></div><div><font face="monospace">dpdk-devbind.py --unbind 0000:08:00.0<br></font></div><div><font face="monospace">dpdk-devbind.py --bind=vfio-pci 0000:08:00.0<br></font></div><div><font face="monospace">dpdk-devbind.py --status</font></div><div><p style="margin:0in"><font face="monospace">0000:08:00.0
'Ethernet Controller 10G X550T 15d1' drv=vfio-pci unused=ixgbe</font></p><p style="margin:0in;font-family:Calibri;font-size:11pt"><br></p><p style="margin:0in"><font face="monospace">dpdk-testpmd</font></p><p style="margin:0in"><font face="monospace">EAL: Detected 4 lcore(s)<br> EAL: Detected 1 NUMA nodes<br> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket<br> EAL: Selcted IOVA mode 'PA'<br> EAL: No available hugepages reported in hugepages-1048576kB<br> EAL: Probing VIFO support…<br> EAL: VFIO support initialized<br><span style="background-color:rgb(255,153,0)"> EAL: Failed to open group 0<br> EAL: 0000:08:00.0 not managed by VFIO driver, skipping<br> EAL: No legacy callbacks, legacy socket not created<br> testpmd: No probed ethernet devices</span><br> testpmd: create a new mbuf pool <mb_pool_0>: n=171756, size=2176, socket=0<br> testpmd: preferred mempool ops selected: ring_mp_mc<br> Done<br> No commandline core given, start packet forwarding<br> io packet forwarding - ports=0 - cores=0 - streams=0 - NUMA support enabled, MP allocation mode: native<br> <br> io packet forwarding packets/burst=32<br> Nb forwarding cores=1 - nb forwarding ports=0<br></font><br><font face="Calibri" style="font-size:11pt">Press enter to exit</font></p><p style="margin:0in;font-family:Calibri;font-size:11pt"><br></p></div><div>Thank you in advance for your help!</div><div><br></div><div>Cheers,</div><div><br>Robert</div></div></div></div>