[dpdk-users] l3fwd rte_eth_dev_configure: err=-17

[czy12345 at mail.ustc.edu.cn]

The DPDK version I used is 17.02.1 . Today I also tried 17.05 and 17.05.1, the result were the same except the return err which was -22. 

Network devices using DPDK-compatible driver
============================================
0000:02:00.0 '82574L Gigabit Network Connection 10d3' drv=igb_uio unused=vfio-pci
0000:03:00.0 '82574L Gigabit Network Connection 10d3' drv=igb_uio unused=vfio-pci

Thanks.


At2017-07-31 13:47:41,Pavel Shirshov<pavel.shirshov at gmail.com>wrote:
> Hello,
> 
> What version of DPDK?
> What NIC on port 0?
> 
> Thanks
> 
> On Sun, Jul 30, 2017 at 12:42 AM,  <czy12345 at mail.ustc.edu.cn> wrote:
> > Hello experts,
> >
> > I have successfully ran l2fwd example. But I'm having troubles running the l3fwd example. I find that in l2fwd the nb_tx_queue parameter of function rte_eth_dev_configure is equal to 1, but in l3fwd the parameter is set to the number of lcores. And then when I use more than one lcores, the function fails. Wondering what is related with the problem?
> >
> > Thanks in advance.
> >
> > #./l3fwd -l 1 -n 4 -- -p 0x3 --config="(0,0,1),(1,0,1)" --parse-ptype
> > success
> >
> > #./l3fwd -l 1,2 -n 4 -- -p 0x3 --config="(0,0,1),(1,0,2)" --parse-ptype
> > EAL: Detected 8 lcore(s)
> > EAL: Probing VFIO support...
> > EAL: VFIO support initialized
> > EAL: PCI device 0000:01:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10e6 net_e1000_igb
> > EAL: PCI device 0000:01:00.1 on NUMA socket -1
> > EAL:   probe driver: 8086:10e6 net_e1000_igb
> > EAL: PCI device 0000:02:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > EAL: PCI device 0000:03:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > EAL: PCI device 0000:04:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > EAL: PCI device 0000:05:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > EAL: PCI device 0000:06:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > EAL: PCI device 0000:07:00.0 on NUMA socket -1
> > EAL:   probe driver: 8086:10d3 net_e1000_em
> > soft parse-ptype is enabled
> > L3FWD: LPM or EM none selected, default LPM on
> > Initializing port 0 ... Creating queues: nb_rxq=1 nb_txq=2... EAL: Error - exiting with code: 1
> >   Cause: Cannot configure device: err=-17, port=0