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From: "sakaia@fujitsu.com" <sakaia@fujitsu.com>
To: "'users@dpdk.org'" <users@dpdk.org>
Subject: Question about dpdk-pdump ring buffer
Date: Fri, 8 Apr 2022 06:50:36 +0000	[thread overview]
Message-ID: <TYCPR01MB872413CA43110E0540B39349C7E99@TYCPR01MB8724.jpnprd01.prod.outlook.com> (raw)

Question about dpdk-pdump ring buffer

With updating from 21.08 to 21.11, The packet capture is failed. 
Previously(21.08) it works fine.

I want to know 2 things
a)the difference of dpdk-pdump between 21.08 and 21.11 (seems bpf changes) 
b)where pcap capture the ring buffer for secondary process?

The output is coming from print_pdump_stats function is zero for 3 parameters.(N.B.1) 
Above parameters are counted on pdump_rxtx function.(it is zero on this function also) 
The ring seems copied under mp_handle (process_msg) or mp_pdump.

P.S.
I understand dpdk-pdump seems to be deprecated by introducing dpdk-dumpcap.

Reference
  https://doc.dpdk.org/guides/prog_guide/pdump_lib.html
  https://doc.dpdk.org/guides/prog_guide/multi_proc_support.html

N.B.1

##### PDUMP DEBUG STATS #####
 -packets dequeued:                     0
 -packets transmitted to vdev:          0
 -packets freed:                        0

Thanks in advance

Atsushi SAKAI

             reply	other threads:[~2022-04-08  6:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-08  6:50 sakaia [this message]
2022-04-08 15:11 ` Stephen Hemminger

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