[dpdk-users] mlx5: dual port capture

[Stephen Hemminger]

On Fri, 24 Jul 2020 17:04:20 -0400
PATRICK KEROULAS <patrick.keroulas at radio-canada.ca> wrote:

> Hello,
> 
> We use 2 physical networks for redundancy. In order to validate that
> data on both network is similar, I need to capture traffic on the 2
> NIC ports simultaneously, no matter if the result is 2 pcap files.
> Since dpdk-pdump seems to work for one single port, I've tried to start
> 2 pdump processes simultaneously, which leads to a `Cannot reserve
> memory` msg for one of these.
> 
> I'm not very familiar with how mem pools and queues work. But I feel
> like there is a clever way to handle that. Can someone give a hint?
> 
> Best regards,
> 
> PK

I did some merged work to support pcapng and multiple interfaces, you can find it in patchwork
or mailing list.