[dpdk-users] problem using two ports with pktgen-dpdk

Wiles, Keith keith.wiles at intel.com
Thu Jun 28 15:02:35 CEST 2018



> On Jun 28, 2018, at 4:45 AM, Stefano Salsano <stefano.salsano at uniroma2.it> wrote:
> 
> Hi,
> 
> I'm now simply trying to use two ports in a single pktgen-dpdk instance
> (maybe I do not need the two instances...), but still I have a problem
> 
> Pktgen Ver: 3.5.1 (DPDK 18.08.0-rc0)
> Powered by DPDK ** Version: DPDK 18.08.0-rc0


OK now I see the pktgen and dpdk versions.

> 
> trying to use two ports as follows, it stops with an error (see below)
> 
> sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen  -l 0-4 -n 3 -- -P -m "1.0, 2.1"
> 
> while using a single port at a time is OK:
> 
> sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen  -l 0-4 -n 3  -- -P -m "1.0"
> 
> sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen  -l 0-4 -n 3  -- -P -m "2.1"
> 
> any suggestion will be appreciated!

Another place to look is in the pktgen/cfg directory at files master.cfg and slave.cfg (bad names as they are not master and slave processes) In these files are python data statements and are used by pktgen/tools/dpdk-run.py command as so.

$ ./tools/dpdk-run.py master

$ ./tools/dpdk-run.py slave

You can copy these files and edit them for your use call them say pktgen-1.cfg and pktgen-2.cfg then run 

$ ./tools/dpdk-run.py pktgen-1

$ ./tools/dpdk-run.py pktgen-2

I hope that helps.

> 
> ciao Stefano
> 
> This is the error, and the full output is further below
> 
> !PANIC!: Cannot create mbuf pool (Range TX    1:0) port 1, queue 0, nb_mbufs 16384, socket_id 0: No such file or directory
> PANIC in pktgen_mbuf_pool_create():
> Cannot create mbuf pool (Range TX    1:0) port 1, queue 0, nb_mbufs 16384, socket_id 0: No such file or directory6: [./app/x86_64-native-linuxapp-gcc/pktgen(_start+0x29) [0x466139]]
> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7ffff6cae830]]
> 4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0x598) [0x460388]]
> 3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x18ad) [0x491aed]]
> 2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc3) [0x45769b]]
> 1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2b) [0x50aadb]]
> Aborted
> 
> FULL OUTPUT
> 
> ssalsano at node-0:~/pktgen-dpdk$ sudo -E ./app/x86_64-native-linuxapp-gcc/pktgen  -l 0-4 -n 3 --socket-mem 64,64 -- -P -m "1.0, 2.1"
> 
> Copyright (c) <2010-2017>, Intel Corporation. All rights reserved. Powered by DPDK
> EAL: Detected 32 lcore(s)
> EAL: Detected 2 NUMA nodes
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> EAL: No free hugepages reported in hugepages-1048576kB
> EAL: Probing VFIO support...
> EAL: PCI device 0000:01:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:01:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:06:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:10fb net_ixgbe
> EAL: PCI device 0000:06:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:10fb net_ixgbe
> Lua 5.3.4  Copyright (C) 1994-2017 Lua.org, PUC-Rio
>   Copyright (c) <2010-2017>, Intel Corporation. All rights reserved.
>   Pktgen created by: Keith Wiles -- >>> Powered by DPDK <<<
> 
> >>> Packet Burst 64, RX Desc 1024, TX Desc 2048, mbufs/port 16384, mbuf cache 2048
> 
> === port to lcore mapping table (# lcores 5) ===
>   lcore:    0       1       2       3       4      Total
> port   0: ( D: T) ( 1: 1) ( 0: 0) ( 0: 0) ( 0: 0) = ( 1: 1)
> port   1: ( D: T) ( 0: 0) ( 1: 1) ( 0: 0) ( 0: 0) = ( 1: 1)
> Total   : ( 0: 0) ( 1: 1) ( 1: 1) ( 0: 0) ( 0: 0)
>  Display and Timer on lcore 0, rx:tx counts per port/lcore
> 
> Configuring 2 ports, MBUF Size 2176, MBUF Cache Size 2048
> Lcore:
>    1, RX-TX
>                RX_cnt( 1): (pid= 0:qid= 0)
>                TX_cnt( 1): (pid= 0:qid= 0)
>    2, RX-TX
>                RX_cnt( 1): (pid= 1:qid= 0)
>                TX_cnt( 1): (pid= 1:qid= 0)
> 
> Port :
>    0, nb_lcores  1, private 0xe17b80, lcores:  1
>    1, nb_lcores  1, private 0xe19b90, lcores:  2
> 
> 
> ** Device Info (0000:06:00.0, if_index:0, flags 00000002) **
>   min_rx_bufsize : 1024  max_rx_pktlen     :15872  hash_key_size :   40
>   max_rx_queues  :  128  max_tx_queues     :   64  max_vfs       :    0
>   max_mac_addrs  :  127  max_hash_mac_addrs: 4096  max_vmdq_pools:   64
>   vmdq_queue_base:    0  vmdq_queue_num    :  128  vmdq_pool_base:    0
>   nb_rx_queues   :    0  nb_tx_queues      :    0  speed_capa    : 00000120
> 
>   flow_type_rss_offloads:0000000000038d34  reta_size             :  128
>   rx_offload_capa       :000000000000be9f  tx_offload_capa :0000000000172095
>   rx_queue_offload_capa :0000000000000001  tx_queue_offload_capa :0000000000000000
>   dev_capa              :0000000000000000
> 
>  RX Conf:
>     pthresh        :    8 hthresh          :    8 wthresh        :    0
>     Free Thresh    :   32 Drop Enable      :    0 Deferred Start :    0
>     offloads       :0000000000000000
>  TX Conf:
>     pthresh        :   32 hthresh          :    0 wthresh        :    0
>     Free Thresh    :   32 RS Thresh        :   32 Deferred Start : 0  TXQ Flags: 00000f01
>     offloads       :0000000000000000
>  Rx: descriptor Limits
>     nb_max         : 4096  nb_min          :   32  nb_align      :    8
>     nb_seg_max     :    0  nb_mtu_seg_max  :    0
>  Tx: descriptor Limits
>     nb_max         : 4096  nb_min          :   32  nb_align      :    8
>     nb_seg_max     :   40  nb_mtu_seg_max  :   40
>  Rx: Port Config
>     burst_size     :    0  ring_size       :    0  nb_queues     :    0
>  Tx: Port Config
>     burst_size     :    0  ring_size       :    0  nb_queues     :    0
>  Switch Info: (null)
>     domain_id      :    0  port_id         :    0
> 
>    Create: Default RX  0:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>      Set RX queue stats mapping pid 0, q 0, lcore 1
> 
> 
>    Create: Default TX  0:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>    Create: Range TX    0:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>    Create: Sequence TX 0:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>    Create: Special TX  0:0  - Memory used (MBUFs    64 x (size 2176 + Hdr 128)) + 192 =    145 KB, headroom 128
> 
> Port memory used = 147605 KB
> Initialize Port 0 -- TxQ 1, RxQ 1,  Src MAC 90:e2:ba:29:f6:40
> ** Device Info (0000:06:00.1, if_index:0, flags 00000002) **
>   min_rx_bufsize : 1024  max_rx_pktlen     :15872  hash_key_size :   40
>   max_rx_queues  :  128  max_tx_queues     :   64  max_vfs       :    0
>   max_mac_addrs  :  127  max_hash_mac_addrs: 4096  max_vmdq_pools:   64
>   vmdq_queue_base:    0  vmdq_queue_num    :  128  vmdq_pool_base:    0
>   nb_rx_queues   :    0  nb_tx_queues      :    0  speed_capa    : 00000120
> 
>   flow_type_rss_offloads:0000000000038d34  reta_size             :  128
>   rx_offload_capa       :000000000000be9f  tx_offload_capa :0000000000172095
>   rx_queue_offload_capa :0000000000000001  tx_queue_offload_capa :0000000000000000
>   dev_capa              :0000000000000000
> 
>  RX Conf:
>     pthresh        :    8 hthresh          :    8 wthresh        :    0
>     Free Thresh    :   32 Drop Enable      :    0 Deferred Start :    0
>     offloads       :0000000000000000
>  TX Conf:
>     pthresh        :   32 hthresh          :    0 wthresh        :    0
>     Free Thresh    :   32 RS Thresh        :   32 Deferred Start : 0  TXQ Flags: 00000f01
>     offloads       :0000000000000000
>  Rx: descriptor Limits
>     nb_max         : 4096  nb_min          :   32  nb_align      :    8
>     nb_seg_max     :    0  nb_mtu_seg_max  :    0
>  Tx: descriptor Limits
>     nb_max         : 4096  nb_min          :   32  nb_align      :    8
>     nb_seg_max     :   40  nb_mtu_seg_max  :   40
>  Rx: Port Config
>     burst_size     :    0  ring_size       :    0  nb_queues     :    0
>  Tx: Port Config
>     burst_size     :    0  ring_size       :    0  nb_queues     :    0
>  Switch Info: (null)
>     domain_id      :    0  port_id         :    0
> 
>    Create: Default RX  1:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>      Set RX queue stats mapping pid 1, q 0, lcore 2
> 
> 
>    Create: Default TX  1:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
>    Create: Range TX    1:0  - Memory used (MBUFs 16384 x (size 2176 + Hdr 128)) + 192 =  36865 KB, headroom 128
> !PANIC!: Cannot create mbuf pool (Range TX    1:0) port 1, queue 0, nb_mbufs 16384, socket_id 0: No such file or directory
> PANIC in pktgen_mbuf_pool_create():
> Cannot create mbuf pool (Range TX    1:0) port 1, queue 0, nb_mbufs 16384, socket_id 0: No such file or directory6: [./app/x86_64-native-linuxapp-gcc/pktgen(_start+0x29) [0x466139]]
> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7ffff6cae830]]
> 4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0x598) [0x460388]]
> 3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x18ad) [0x491aed]]
> 2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc3) [0x45769b]]
> 1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2b) [0x50aadb]]
> Aborted
> 
> 
> -- 
> *******************************************************************
> Stefano Salsano
> Professore Associato
> Dipartimento Ingegneria Elettronica
> Universita' di Roma Tor Vergata
> Viale Politecnico, 1 - 00133 Roma - ITALY
> 
> http://netgroup.uniroma2.it/Stefano_Salsano/
> 
> E-mail  : stefano.salsano at uniroma2.it
> Cell.   : +39 320 4307310
> Office  : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435
> *******************************************************************
> 

Regards,
Keith



More information about the users mailing list