[dpdk-dev] testpmd app issues

[Jeff Wang <fatjeffw@gmail.com>]

Hi,

I'm new to DPDK.

I have gone through the user guide, set up environment, hugepages. I can
get the helloworld app work. Now, when I tried to play with the testpmd
app, I got the following issue:

[root@localhost dpdk-1.8.0]# build/app/testpmd -c 0x2 -n1 -- -i
--nb-cores=1 --nb-ports=0x1

.....

EAL: TSC frequency is ~2594110 KHz
EAL: Master core 1 is ready (tid=e07b3840)
PMD: ENICPMD trace: rte_enic_pmd_init
EAL: PCI device 0000:02:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   0000:02:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:03:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   PCI memory mapped at 0x7f06df800000
EAL:   PCI memory mapped at 0x7f06df820000
PMD: eth_em_dev_init(): port_id 0 vendorID=0x8086 deviceID=0x10d3
EAL: PCI device 0000:04:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   0000:04:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:05:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   0000:05:00.0 not managed by UIO driver, skipping*PANIC in main():
Empty set of forwarding logical cores - check the core mask supplied
in the command parameters*
5: [build/app/testpmd() [0x428ea5]]
4: [/lib64/libc.so.6(__libc_start_main+0xf5) [0x7f06df8e2af5]]

.....

It says the core mask is not right. I set it to 0x2 because my CPU
only has 2 cores. I don't quite get it.

Can someone help me with this? And has anyone else encountered the same issue?

Thanks!