Re: [dpdk-users] "eth_i40e_dev_init(): Failed to init adminq: -66" problem

[Sunghyuk Kay <sunghyuk.kay@kaist.ac.kr>]

Hi,
Thanks for the solution.

Actually, I was trying with igb_uio driver, rather than vfio-pci.
Would that make a difference?

Thank you,
Sunghyuk

2020년 4월 10일 (금) 오후 9:54, Dheeraj Dang <dheerajdang138@gmail.com>님이 작성:

> Hi,
>
> I think you are using virtual functions while running your test. If yes,
> please try the following commands
>
> Make changes in GRUB setting, update grub and reboot the machine.
> GRUB_CMDLINE_LINUX="intel_iommu=on amd_iommu=on"
> When machine is up, check that iommu is enabled in the output of cat
> /proc/cmdline. If iommu is enabled, then run the following commands.
> modprobe vfio enable_unsafe_noiommu_mode=Y modprobe vfio-pci
>
> Bind your dpdk interfaces to vfio-pci (*dpdk-devbind.py -b vfio-pci
> <PCI_ID>*) and run the test.
>
> Regards
> Dheeraj Dang
>
>
> On Fri, Apr 10, 2020 at 6:16 PM Sunghyuk Kay <sunghyuk.kay@kaist.ac.kr>
> wrote:
>
>> Hi all,
>> I'm setting DPDK on our hardware to do some experiment, but suffering
>> from .
>>
>> I was trying to use DPDK on Ubuntu 18.04 with Intel XL710 Ethernet Adapter
>> with igb_uio driver. I've compiled DPDK from source, and bound the driver
>> to NIC.
>> But when I run `testpmd` application, it returns an error like this.
>>
>> ```
>> $ sudo ./build/app/testpmd
>> EAL: Detected 128 lcore(s)
>> EAL: Detected 1 NUMA nodes
>> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
>> EAL: Selected IOVA mode 'PA'
>> EAL: No available hugepages reported in hugepages-1048576kB
>> EAL: Probing VFIO support...
>> EAL: PCI device 0000:81:00.0 on NUMA socket 0
>> EAL:   probe driver: 8086:1583 net_i40e
>> eth_i40e_dev_init(): Failed to init adminq: -66
>> EAL: ethdev initialisation failedEAL: Requested device 0000:81:00.0 cannot
>> be used
>> EAL: PCI device 0000:81:00.1 on NUMA socket 0
>> EAL:   probe driver: 8086:1583 net_i40e
>> eth_i40e_dev_init(): Failed to init adminq: -66
>> EAL: ethdev initialisation failedEAL: Requested device 0000:81:00.1 cannot
>> be used
>> EAL: PCI device 0000:c4:00.0 on NUMA socket 0
>> EAL:   probe driver: 8086:1533 net_e1000_igb
>> EAL: PCI device 0000:c5:00.0 on NUMA socket 0
>> EAL:   probe driver: 8086:1533 net_e1000_igb
>> testpmd: No probed ethernet devices
>> testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=1163456,
>> size=2176,
>> socket=0
>> testpmd: preferred mempool ops selected: ring_mp_mc
>> Done
>> No commandline core given, start packet forwarding
>> io packet forwarding - ports=0 - cores=0 - streams=0 - NUMA support
>> enabled, MP allocation mode: native
>>
>>   io packet forwarding packets/burst=32
>>   nb forwarding cores=1 - nb forwarding ports=0
>> Press enter to exit
>>
>> Telling cores to stop...
>> Waiting for lcores to finish...
>>
>>   +++++++++++++++ Accumulated forward statistics for all
>> ports+++++++++++++++
>>   RX-packets: 0              RX-dropped: 0             RX-total: 0
>>   TX-packets: 0              TX-dropped: 0             TX-total: 0
>>
>>
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>
>> Done.
>>
>> Bye...
>> ```
>> I tried to find what return code -66 from adminq means, but I couldn't
>> find
>> it.
>> Some say this might have to do with Intel IOMMU pass-through, but I'm not
>> sure that's the case.
>>
>> Has anyone had this issue before? Maybe some tip on this issue would be
>> very helpful.
>>
>> Thank you,
>> Sunghyuk
>>
> --
감사합니다
계성혁 드림
=========
계성혁 (Kay, Sung Hyuk)
KAIST Concurrency and Parallelism Laboratory
Masters Student @ Software Graduate Program
Mobile: 010-2794-6906