Troubles using pdump to capture the packets

[廖書華]

Dear Reshma,

Thanks for your kind response ! Unfortunately, it still can't work.

1) I double checked the return value (int) of these two functions, both of
them return 0.
2) About the DPDK building, we are not using the shared library build.
[image: Screenshot from 2021-10-15 10-19-29.png]
The DPDK library is for static (.a), by the way, for the primary
application we used, I already added static library (librte_pdump.a,
librte_pmd_pcap.a) in the Makefile (
https://drive.google.com/file/d/1Y2Oua1T41U86qPUiiOtw7_XCIJzqJDmP/view?usp=sharing
).
[image: Screenshot from 2021-10-15 10-29-18.png]
3) For the primary side, I saw the log showed "-w 0000:00:00.0", which are
the input of function rte_eal_init(). Therefore, I also tried to parse "-w
0000:00:00.0" on pdump side, however, it still got the error.
*- Log in pdump side*
https://drive.google.com/file/d/1QIHRr4A-4lh3QvfQUF8CLwJkutY23OPO/view?usp=sharing

*- Log in primary side (Red font I think is related to DPDK)*
https://drive.google.com/file/d/1_ItKwrDebaA1skuei8RExkftudUlXiAS/view?usp=sharing

---------------------

P.S 1. On primary side, If we change  "-w 0000:00:00.0" to  "-w
0000:86:02.0 -w 0000:86:02.1" which is the two bus-info we bind for DPDK.
[image: Screenshot from 2021-10-15 11-52-53.png]
We will get the error  *EAL: Failed to attach device on primary process, * do
you have any idea what is the root cause of this issue ?
xran_ethdi_init_dpdk_io: Calling rte_eal_init:wls_0 -c 0x2000021 -n2
--iova-mode=pa --socket-mem=8192 --socket-limit=8192 --proc-type=auto
--file-prefix wls_0 -w 0000:86:02.0 -w 0000:86:02.1 EAL: Detected 40
lcore(s) EAL: Detected 2 NUMA nodes EAL: Auto-detected process type:
PRIMARY EAL: Multi-process socket /var/run/dpdk/wls_0/mp_socket EAL:
Selected IOVA mode 'PA' EAL: Probing VFIO support... EAL: VFIO support
initialized EAL: PCI device 0000:86:02.0 on NUMA socket 1 EAL: probe
driver: 8086:154c net_i40e_vf EAL: using IOMMU type 1 (Type 1) EAL: PCI
device 0000:86:02.1 on NUMA socket 1 EAL: probe driver: 8086:154c
net_i40e_vf Return value (int) of rte_pdump_init() : 0 EAL: PCI device
0000:86:02.0 on NUMA socket 1 EAL: Failed to attach device on primary
process initializing port 0 for TX, drv=net_i40e_vf Port 0 MAC: 00 11 22 33
44 66 Port 0: nb_rxd 4096 nb_txd 4096 Checking link status portid [0] ...
done Port 0 Link Up - speed 10000 Mbps - full-duplex EAL: PCI device
0000:86:02.1 on NUMA socket 1 EAL: Failed to attach device on primary
process initializing port 1 for TX, drv=net_i40e_vf Port 1 MAC: 00 11 22 33
44 66 Port 1: nb_rxd 4096 nb_txd 4096 Checking link status portid [1] ...
done Port 1 Link Up - speed 10000 Mbps - full-duplex vf 0 local SRC MAC: 00
11 22 33 44 66 vf 0 remote DST MAC: 00 11 22 33 44 55 vf 1 local SRC MAC:
00 11 22 33 44 66 vf 1 remote DST MAC: 00 11 22 33 44 55

P.S. 2 : For the DPDK environment we to build, we select
x86_64-native-linuxapp-icc and Insert VFIO module.

Best Regards,
Shu-hua, Liao


Pattan, Reshma <reshma.pattan at intel.com> 於 2021年10月14日 週四 下午5:52寫道：

>
>
> > -----Original Message-----
> > From: 廖書華 <sim860927 at gmail.com>
>
>
> > Yes, I already set *CONFIG_RTE_LIBRTE_PMD_PCAP=y *and
> > *CONFIG_RTE_LIBRTE_PDUMP=y *in the file "dpdk-
> > 19.11/config/common_base"
> > then build DPDK.
> > Also, in the files "dpdk-19.11/x86_64-native-linuxapp-icc/.config" and
> "dpdk-
> > 19.11/x86_64-native-linuxapp-icc/.config.orig", they also show that
> > *CONFIG_RTE_LIBRTE_PMD_PCAP=y *and *CONFIG_RTE_LIBRTE_PDUMP=y.*
> >
> > It seems that it already enabled pcap PMD of DPDK.
> > Do you have other suggestions ?
>
> Hi,
>
> Few options you can double check
> 1)Make sure your primary application is calling
> rte_pdump_init()/ret_pudmp_uninit() to initialize/uninitialize the pdump
> library.
> 2)If you are using a shared library build,   double check you are  linking
> pcap pmd properly in primary build as explained in below link
> https://www.mail-archive.com/users@dpdk.org/msg05039.html
>
> https://stackoverflow.com/questions/62795017/dpdk-pdump-failed-to-hotplug-add-device
> 3)If you are passing any pci device using  eal "-w" option to primary,
> try to pass the same device to secondary also using "-w" option .
>
> If you still see the issue please paste the full primary and secondary
> application run log with command that you are running.
> Also what kind of build you are using.
>
> Thanks,
> Reshma
>
>
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