I am trying to use DPDK 19.11 in centOS 8.0. I have compiled DPDK as per guidelines. Then I did bind ethernet NIC to DPDK driver and left Wifi to Linux kernel using dpdk_setup.sh.
1.When I try to use testpmd the following message is displayed. "testpmd: No probed ethernet devices" though the port is bounded.
When I try to use dpdk_pdump, I get the message EAL: Error - exiting with code: 1 Cause: No Ethernet ports - bye
Please find driver allocation
Network devices using DPDK-compatible driver
0000:03:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller 8168' drv=igb_uio unused=r8169
Network devices using kernel driver
0000:02:00.0 'Wireless 3160 08b4' if=wlp2s0 drv=iwlwifi unused=igb_uio Active
Executed testpmd and dpdkpdump from the following folders /home/vijay/fwldpdk/x86_64-native-linuxapp-gcc/app
testpmd output
$ sudo ./testpmd -c f -n 4 -- -i
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: Probing VFIO support...
testpmd: No probed ethernet devices
Interactive-mode selected
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Done
testpmd> show port
Bad arguments
testpmd> show port 0
Bad arguments
testpmd> show port 1
Bad arguments
DPDK_pdump output
$ sudo ./dpdk-pdump
EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket_75341_87718f3ca82
EAL: Selected IOVA mode 'PA'
EAL: Probing VFIO support...
EAL: Error - exiting with code: 1
Cause: No Ethernet ports - bye
I did refer the following question DPDK run testpmd failed. EAL:no probed ethernet device.
2.If I put wifi interface also to DPDK driver whether testpmd will forward packets between two DPDK ports?
- We bring down NIC interface so that it can be bounded to DPDK driver. Do we need to bring it up once it's attached with DPDK using any command?
Any inputs on how do I resolve it?
