Hi Gavin, It is [root@localhost scripts]# ./dpdk-devbind.py --status-dev net
Network devices using DPDK-compatible driver ============================================ 0000:04:00.0 'Ethernet Controller 10-Gigabit X540-AT2 1528' drv=vfio-pci unused=ixgbe 0000:04:00.1 'Ethernet Controller 10-Gigabit X540-AT2 1528' drv=vfio-pci unused=ixgbe Network devices using kernel driver =================================== 0000:02:00.0 'NetXtreme BCM5719 Gigabit Ethernet PCIe 1657' if=eno1 drv=tg3 unused=vfio-pci *Active* 0000:02:00.1 'NetXtreme BCM5719 Gigabit Ethernet PCIe 1657' if=eno2 drv=tg3 unused=vfio-pci 0000:02:00.2 'NetXtreme BCM5719 Gigabit Ethernet PCIe 1657' if=eno3 drv=tg3 unused=vfio-pci 0000:02:00.3 'NetXtreme BCM5719 Gigabit Ethernet PCIe 1657' if=eno4 drv=tg3 unused=vfio-pci [root@localhost scripts]# I understand from the that IOMMU type selection is failing, is it possible to somehow default it to either igb_uio ? Thanks, Regards, Venu On Thu, 28 Nov 2019 at 13:09, Gavin Hu (Arm Technology China) < gavin...@arm.com> wrote: > Hi Venumadhav, > > > -----Original Message----- > > From: dev <dev-boun...@dpdk.org> On Behalf Of Venumadhav Josyula > > Sent: Thursday, November 28, 2019 3:01 PM > > To: dev@dpdk.org; us...@dpdk.org > > Cc: Venumadhav Josyula <vjosy...@parallelwireless.com> > > Subject: [dpdk-dev] seeing a problem dpdk startup > > > > We are seeing following error, no device is detected.... > > ========== > > EAL: Detected 8 lcore(s) > > EAL: Detected 2 NUMA nodes > > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > > EAL: No free hugepages reported in hugepages-1048576kB > > EAL: Probing VFIO support... > > EAL: VFIO support initialized > > EAL: PCI device 0000:04:00.0 on NUMA socket 0 > > EAL: probe driver: 8086:1528 net_ixgbe > > EAL: 0000:04:00.0 failed to select IOMMU type > > EAL: Requested device 0000:04:00.0 cannot be used > > EAL: PCI device 0000:04:00.1 on NUMA socket 0 > > EAL: probe driver: 8086:1528 net_ixgbe > > EAL: 0000:04:00.1 failed to select IOMMU type > > EAL: Requested device 0000:04:00.1 cannot be used > > > > ================== > > dmesg > > > > [55455.259493] vfio-pci 0000:04:00.0: Device is ineligible for IOMMU > domain > > attach due to platform RMRR requirement. Contact your platform vendor. > > [55455.260947] vfio-pci 0000:04:00.1: Device is ineligible for IOMMU > domain > > attach due to platform RMRR requirement. Contact your platform vendor. > > > > ====== > > BOOT_IMAGE=/boot/vmlinuz-3.10.0-957.el7.pw.1.x86_64 root=/dev/sda3 > > intel_iommu=on > > > > > > Can anybody suggest how to work around the issue ? > Did you check if the device is bound to DPDK? > Here is an example on my host: > gavin@net-arm-thunderx2-01:~/dpdk$ ./usertools/dpdk-devbind.py -s > > Network devices using DPDK-compatible driver > ============================================ > 0000:0f:00.0 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' drv=vfio-pci > unused=i40e > 0000:8a:00.0 'Ethernet Controller XXV710 for 25GbE SFP28 158b' > drv=vfio-pci unused=i40e > 0000:8a:00.1 'Ethernet Controller XXV710 for 25GbE SFP28 158b' > drv=vfio-pci unused=i40e > > > > Thanks, > > Regards, > > Venu >