[dpdk-users] [dpdk-dev] seeing a problem dpdk startup

[Hui Wei]

>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. 

Intel Vt-d document addresses RMRR, but not that clearly. Check BIOS setup, 
no link share, for example, a nic detect by linux kernel, it was shared by BIOS for
IPMI. If change BIOS setup don't solve your problem, contact platform vendor update 
nic firmware, a server made by HP, check HP's website for firmware.

>
>======
>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 ?
>
>Thanks,
>Regards,
>Venu