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

[czy12345 at mail.ustc.edu.cn]

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