Re: [ dpdk-pktgen execution issue ] Error: Didn't find any ports to use

["Wiles, Keith" <keith.wiles-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

On 2/2/15, 3:10 AM, "Arkajit Ghosh" <arkajit.ghosh-/cgKlWMm3F8@public.gmane.org> wrote:

>
>Hi,
>
>Facing issue during the execution of dpdk-pktgen in VM. Please find the
>below details:
>
>Setup details:
>
>> Executing in Guest machine (VM).
>> Having 2 logical core.
>>Configured 2048 km hugepages
>>Number of processor: 2
>
>Scenario to verify: Generate some packets by dpdk-pktgen and then one
>dpdk-ports will work as a RX end and other one will be as TX end to
>handle the incoming packets and do the required action.
>
>dpdk-Ports creation: Here is the snapshot
>
>root@tcs-VirtualBox:/usr/src/pktgen-DPDK/dpdk/examples/pktgen#
>/usr/src/ovs/utilities/ovs-vsctl show
>c2245b31-3ca1-49c6-b4c5-1041be5b9dc4
>    Bridge "ovsbr0"
>        Port "dpdkr2"
>            Interface "dpdkr2"
>                type: dpdk
>                options: {port="2"}
>        Port "ovsbr0"
>            Interface "ovsbr0"
>                type: internal
>        Port "dpdkr1"
>            Interface "dpdkr1"
>                type: dpdk
>                options: {port="1"}
>root@tcs-VirtualBox:/usr/src/pktgen-DPDK/dpdk/examples/pktgen#
>
>Added the Flow Entrys:
>
>   # Add flows between port 1 (dpdk0) to port 2 (dpdk1)
>
>   ./ovs-ofctl add-flow ovsbr0 in_port=1,action=output:2
>   ./ovs-ofctl add-flow ovsbr0 in_port=2,action=output:1
>
>
>dpdk-pktgen execution error:
>
> Pktgen created by: Keith Wiles -- >>> Powered by Intel® DPDK <<<
>-----------------------
>EAL: Detected lcore 0 as core 0 on socket 0
>EAL: Detected lcore 1 as core 1 on socket 0
>EAL: Support maximum 64 logical core(s) by configuration.
>EAL: Detected 2 lcore(s)
>EAL: Auto-detected process type: PRIMARY
>EAL:   cannot open VFIO container, error 2 (No such file or directory)
>EAL: VFIO support could not be initialized
>EAL: Setting up memory...
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f282c400000 (size = 0x200000)
>EAL: Ask a virtual area of 0x400000 bytes
>EAL: Virtual area found at 0x7f282be00000 (size = 0x400000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f282ba00000 (size = 0x200000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f282b600000 (size = 0x200000)
>EAL: Ask a virtual area of 0x400000 bytes
>EAL: Virtual area found at 0x7f282b000000 (size = 0x400000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f282ac00000 (size = 0x200000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f282a800000 (size = 0x200000)
>EAL: Ask a virtual area of 0x400000 bytes
>EAL: Virtual area found at 0x7f282a200000 (size = 0x400000)
>EAL: Ask a virtual area of 0x800000 bytes
>EAL: Virtual area found at 0x7f2829800000 (size = 0x800000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f2829400000 (size = 0x200000)
>EAL: Ask a virtual area of 0x1e00000 bytes
>EAL: Virtual area found at 0x7f2827400000 (size = 0x1e00000)
>EAL: Ask a virtual area of 0xc00000 bytes
>EAL: Virtual area found at 0x7f2826600000 (size = 0xc00000)
>EAL: Ask a virtual area of 0x1000000 bytes
>EAL: Virtual area found at 0x7f2825400000 (size = 0x1000000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f2825000000 (size = 0x200000)
>EAL: Ask a virtual area of 0xc00000 bytes
>EAL: Virtual area found at 0x7f2824200000 (size = 0xc00000)
>EAL: Ask a virtual area of 0xe00000 bytes
>EAL: Virtual area found at 0x7f2823200000 (size = 0xe00000)
>EAL: Ask a virtual area of 0x200000 bytes
>EAL: Virtual area found at 0x7f2822e00000 (size = 0x200000)
>EAL: Requesting 60 pages of size 2MB from socket 0
>EAL: TSC frequency is ~2979222 KHz
>EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
>unreliable clock cycles !
>EAL: Master core 1 is ready (tid=2d914840)
>0.1              = lcores(rx 0000000000000001, tx 0000000000000001)
>ports(rx 0000000000000002, tx 0000000000000002)
>1.2              = lcores(rx 0000000000000002, tx 0000000000000002)
>ports(rx 0000000000000004, tx 0000000000000004)
>
>Lua 5.2.3  Copyright (C) 1994-2013 Lua.org, PUC-Rio
>>>> Packet Burst 32, RX Desc 512, TX Desc 512, mbufs/port 4096, mbuf
>>>>cache 512
>!PANIC!: *** Did not find any ports to use ***
>PANIC in pktgen_config_ports():
>*** Did not find any ports to use ***6: [./app/build/pktgen() [0x414c73]]
>5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
>[0x7f282c7faec5]]
>4: [./app/build/pktgen(main+0x470) [0x414750]]
>3: [./app/build/pktgen(pktgen_config_ports+0x1007) [0x42b8c7]]
>2: [./app/build/pktgen(__rte_panic+0xc1) [0x414251]]
>1: [./app/build/pktgen(rte_dump_stack+0x18) [0x4a7cd8]]
>./doit.sh: line 24:  3613 Aborted                 (core dumped)
>./app/build/pktgen -c 0x2 -n 2 --proc-type auto -- -m "0.1,1.2"

Pktgen-dpdk uses the first core in the CPU list for display and timers, so
you need to make sure you a lot one extra core for that function.

./app/build/pktgen -c 0x07 -n 2 ‹proc-type auto ‹ -m ³1.0, 2.1²

Note also the ports start at zero to N, notice in the above I skipped core
zero and used 1 and 2 instead.

As for the error above DPDK did not find any ports that were usable and
this normally means the ports have not been attached to the igb_uio device.

Please do the following and show the output:

# lspci | grep Ethernet

# dpdk_nic_bind.py ‹status

Also the Pktgen-dpdk has a readme or you can look at the DPDK docs as well
for more information.

Thanks
++Keith
>
>###############################################
>
>Please suggest how to proceed and also feel free to do mention if I
>missed anything as I am new to this area.
>
>Thanks & Regards
>Arkajit Ghosh
>Mailto: arkajit.ghosh-/cgKlWMm3F8@public.gmane.org
>Website: http://www.tcs.com
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