Re: Problems when testing l2fwd with ixgbevf pmd dirver

[Lilijun <jerry.lilijun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>]

On 2014/10/23 13:37, Dong, Binghua wrote:
> Hi Lilijun,
> 
> I think you need unbind the device 02:10.0 from driver ixgbevf first; In Host Linux, you also need ifconfig up the PF eth of this VF;

The script dpdk_nic_bind.py will unbind ixgbevf automatically when doing dpdk_nic_bind.py -b igb_uio 02:10.0.
As you said, the problem is fixed by executing  ifconfig up my PF eth.

Thanks very much.

> Please ref my script to unbind a VF device and pass into VM, such as:
> PCI_eth="0000:02:10.0"
> ID_eth="ffff ffff"
> PCIX_eth=" -device pci-assign,host="${PCI_eth}
> echo $ID_eth > /sys/bus/pci/drivers/pci-stub/new_id
> echo ${PCI_eth} > /sys/bus/pci/devices/${PCI_eth}/driver/unbind
> echo ${PCI_eth} > /sys/bus/pci/drivers/pci-stub/bind
> CMD=${CMD}${PCIX_eth}
> 
> ==============================================================================================
> #!/bin/bash
> ID="8086 0442"
> PCI="0000:83:01"
> IMG="/root/test_image/sles11sp2.img"
> HOST=" -vnc 172.16.200.166:1 "
> PCIX=" -device pci-assign,host="${PCI}
> CDROM=" -cdrom /root/QAT/driver.iso "
> 
> 
> CMD="qemu-system-x86_64 -m 2048 -smp 4 -hda "${IMG}${HOST}" -enable-kvm "
> #ADD CCK
> if [ 1 -eq 0 ];then
> echo $ID > /sys/bus/pci/drivers/pci-stub/new_id
> for i in 4 5 6 7
> do
> echo ${PCI}"."$i > /sys/bus/pci/devices/${PCI}"."$i/driver/unbind
> echo ${PCI}"."$i > /sys/bus/pci/drivers/pci-stub/bind
> CMD=${CMD}${PCIX}.$i
> done
> fi
> 
> #ADD ETH
> if [ 1 -eq 0 ];then
> PCI_eth="0000:02:00.1"
> ID_eth="8086 1521"
> PCIX_eth=" -device pci-assign,host="${PCI_eth}
> echo $ID_eth > /sys/bus/pci/drivers/pci-stub/new_id
> echo ${PCI_eth} > /sys/bus/pci/devices/${PCI_eth}/driver/unbind
> echo ${PCI_eth} > /sys/bus/pci/drivers/pci-stub/bind
> CMD=${CMD}${PCIX_eth}
> fi
> 
> #ADD CDROM
> #CMD=${CMD}${CDROM}
> echo $CMD
> 
> #rmmod kvm_intel
> #rmmod kvm
> modprobe kvm
> modprobe kvm_intel
> $CMD
> 
> 
> -----Original Message-----
> From: dev [mailto:dev-bounces-VfR2kkLFssw@public.gmane.org] On Behalf Of Lilijun
> Sent: Thursday, October 23, 2014 11:36 AM
> To: dev-VfR2kkLFssw@public.gmane.org
> Subject: [dpdk-dev] Problems when testing l2fwd with ixgbevf pmd dirver
> 
> Hi all,
> 
> I am testing the example l2fwd of dpdk-1.7.0 using intel 82599 VF NICs.
> But the VF can't be used when doing probe pmd driver with following error:
> 
> EAL: PCI device 0000:02:10.0 on NUMA socket -1
> EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd
> EAL:   PCI memory mapped at 0x7f78b181f000
> EAL:   PCI memory mapped at 0x7f78b181b000
> EAL: Error - exiting with code: 1
>   Cause: Requested device 0000:02:10.0 cannot be used
> 
> Any suggestions?
> 
> Thanks,
> Jerry
> 
> 
> .
>