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

[Venumadhav Josyula <vjosyula@gmail.com>]

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.Hu@arm.com> wrote:

> Hi Venumadhav,
>
> > -----Original Message-----
> > From: dev <dev-bounces@dpdk.org> On Behalf Of Venumadhav Josyula
> > Sent: Thursday, November 28, 2019 3:01 PM
> > To: dev@dpdk.org; users@dpdk.org
> > Cc: Venumadhav Josyula <vjosyula@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
>