[dpdk-users] i40evf : !PANIC!: Cannot configure device: port=0, Num queues 1, 1 (2)Invalid argument

[Wiles, Keith]

> On Sep 21, 2017, at 5:38 AM, Mauricio Valdueza <mvaldueza at vmware.com> wrote:
> 
> Hi:
> 
> 
> I am testing pktgen with Intel Fortville. When I test it in PT, pktgen works without issues however, using SR-IOV has a Panic error (see long below)
> 
> I tested same pktgen in same VM in same platform (vsphere) and Niantic Nics and also works without problems

Pktgen can only set the hw_strip_crc for the port only when the command line uses —crc-strip option. In this case the port was set by the PF to hw-strip and Pktgen is resetting that value back to zero, so just add the —crc-strip option to pktgen for the VF port.

Let me know if that fixes the problem for now.

> 
> 
> Any idea?
> 
> Cheers
> 
> Mau
> 
> :_____________________________________
> 
> 
> 
> sudo ./app/x86_64-native-linuxapp-gcc/pktgen -c 0xf -- -P -m "[2:4].0"
> 
> 
> Copyright (c) <2010-2017>, Intel Corporation. All rights reserved. Powered by DPDK
> EAL: Detected 4 lcore(s)
> EAL: No free hugepages reported in hugepages-1048576kB
> EAL: Probing VFIO support...
> EAL: PCI device 0000:03:00.0 on NUMA socket -1
> EAL:   Invalid NUMA socket, default to 0
> EAL:   probe driver: 8086:154c net_i40e_vf
> EAL: PCI device 0000:0b:00.0 on NUMA socket -1
> EAL:   Invalid NUMA socket, default to 0
> EAL:   probe driver: 15ad:7b0 net_vmxnet3
> 
> 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 4) ===
>   lcore:    0       1       2       3      Total
> port   0: ( D: T) ( 0: 0) ( 1: 0) ( 0: 0) = ( 1: 1)
> Total   : ( 0: 0) ( 0: 0) ( 1: 0) ( 0: 0)
>  Display and Timer on lcore 0, rx:tx counts per port/lcore
> 
> Configuring 1 ports, MBUF Size 2176, MBUF Cache Size 2048
> Lcore:
>    2, RX-Only
>                RX_cnt( 1): (pid= 0:qid= 0)
>    4, TX-Only
>                TX_cnt( 1): (pid= 0:qid= 0)
> 
> Port :
>    0, nb_lcores  2, private 0xa80ea0, lcores:  2  4
> 
> ** Default Info (0000:03:00.0, if_index:0) **
>   max_vfs        :   0, min_rx_bufsize    :1024, max_rx_pktlen :  9728
>   max_rx_queues  :   4, max_tx_queues     :   4
>   max_mac_addrs  :  64, max_hash_mac_addrs:   0, max_vmdq_pools:     0
>   rx_offload_capa:  47, tx_offload_capa   : 287, reta_size     :    64, flow_type_rss_offloads:0000000000007ef8
>   vmdq_queue_base:   0, vmdq_queue_num    :   0, vmdq_pool_base:     0
> ** RX Conf **
>   pthresh        :   8, hthresh          :   8, wthresh        :     0
>   Free Thresh    :  32, Drop Enable      :   0, Deferred Start :     0
> ** TX Conf **
>   pthresh        :  32, hthresh          :   0, wthresh        :     0
>   Free Thresh    :  32, RS Thresh        :  32, Deferred Start :     0, TXQ Flags:00000f01
> 
> i40evf_dev_configure(): VF can't disable HW CRC Strip
> !PANIC!: Cannot configure device: port=0, Num queues 1,1 (2)Invalid argument
> PANIC in pktgen_config_ports():
> Cannot configure device: port=0, Num queues 1,1 (2)Invalid argument6: [./app/x86_64-native-linuxapp-gcc/pktgen(_start+0x29) [0x44a5a9]]
> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f55847e1830]]
> 4: [./app/x86_64-native-linuxapp-gcc/pktgen(main+0x580) [0x4478d0]]
> 3: [./app/x86_64-native-linuxapp-gcc/pktgen(pktgen_config_ports+0x1c85) [0x471245]]
> 2: [./app/x86_64-native-linuxapp-gcc/pktgen(__rte_panic+0xc3) [0x441e28]]
> 1: [./app/x86_64-native-linuxapp-gcc/pktgen(rte_dump_stack+0x2b) [0x4bdffb]]
> Aborted (core dumped)
> n2 at pktgen2:~/pktgen-3.4.1$
> 

Regards,
Keith